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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /arch/mips
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig31
-rw-r--r--arch/mips/Kconfig.debug9
-rw-r--r--arch/mips/alchemy/Kconfig7
-rw-r--r--arch/mips/alchemy/board-gpr.c1
-rw-r--r--arch/mips/alchemy/board-mtx1.c1
-rw-r--r--arch/mips/alchemy/common/Makefile7
-rw-r--r--arch/mips/alchemy/common/clock.c76
-rw-r--r--arch/mips/alchemy/common/irq.c8
-rw-r--r--arch/mips/alchemy/common/time.c6
-rw-r--r--arch/mips/alchemy/devboards/bcsr.c8
-rw-r--r--arch/mips/alchemy/devboards/db1000.c1
-rw-r--r--arch/mips/alchemy/devboards/db1300.c1
-rw-r--r--arch/mips/alchemy/devboards/db1550.c1
-rw-r--r--arch/mips/alchemy/devboards/pm.c2
-rw-r--r--arch/mips/ar7/gpio.c5
-rw-r--r--arch/mips/ar7/platform.c6
-rw-r--r--arch/mips/ar7/setup.c1
-rw-r--r--arch/mips/ath25/ar2315.c2
-rw-r--r--arch/mips/ath25/ar5312.c2
-rw-r--r--arch/mips/ath79/Makefile2
-rw-r--r--arch/mips/ath79/common.h3
-rw-r--r--arch/mips/ath79/gpio.c279
-rw-r--r--arch/mips/ath79/irq.c49
-rw-r--r--arch/mips/ath79/setup.c2
-rw-r--r--arch/mips/bcm47xx/buttons.c3
-rw-r--r--arch/mips/bcm47xx/setup.c2
-rw-r--r--arch/mips/bcm63xx/irq.c6
-rw-r--r--arch/mips/bmips/irq.c2
-rw-r--r--arch/mips/boot/compressed/Makefile2
-rw-r--r--arch/mips/boot/dts/netlogic/xlp_evp.dts12
-rw-r--r--arch/mips/boot/dts/netlogic/xlp_fvp.dts12
-rw-r--r--arch/mips/boot/dts/netlogic/xlp_gvp.dts11
-rw-r--r--arch/mips/boot/dts/netlogic/xlp_rvp.dts11
-rw-r--r--arch/mips/boot/dts/netlogic/xlp_svp.dts12
-rw-r--r--arch/mips/boot/dts/qca/ar9132.dtsi8
-rw-r--r--arch/mips/cavium-octeon/dma-octeon.c8
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-helper-board.c6
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-helper-util.c20
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c14
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-helper.c17
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-pko.c149
-rw-r--r--arch/mips/cavium-octeon/octeon-irq.c38
-rw-r--r--arch/mips/cavium-octeon/setup.c2
-rw-r--r--arch/mips/configs/pistachio_defconfig1
-rw-r--r--arch/mips/include/asm/Kbuild2
-rw-r--r--arch/mips/include/asm/abi.h4
-rw-r--r--arch/mips/include/asm/asmmacro.h114
-rw-r--r--arch/mips/include/asm/atomic.h7
-rw-r--r--arch/mips/include/asm/barrier.h4
-rw-r--r--arch/mips/include/asm/cdmm.h15
-rw-r--r--arch/mips/include/asm/cevt-r4k.h1
-rw-r--r--arch/mips/include/asm/cpu-features.h7
-rw-r--r--arch/mips/include/asm/cpu-type.h4
-rw-r--r--arch/mips/include/asm/cpu.h4
-rw-r--r--arch/mips/include/asm/debug.h48
-rw-r--r--arch/mips/include/asm/dma-mapping.h67
-rw-r--r--arch/mips/include/asm/elf.h4
-rw-r--r--arch/mips/include/asm/fpu.h21
-rw-r--r--arch/mips/include/asm/gpio.h6
-rw-r--r--arch/mips/include/asm/io.h1
-rw-r--r--arch/mips/include/asm/irq.h2
-rw-r--r--arch/mips/include/asm/jump_label.h19
-rw-r--r--arch/mips/include/asm/kdebug.h4
-rw-r--r--arch/mips/include/asm/kvm_host.h2
-rw-r--r--arch/mips/include/asm/linkage.h1
-rw-r--r--arch/mips/include/asm/maar.h11
-rw-r--r--arch/mips/include/asm/mach-ar7/ar7.h4
-rw-r--r--arch/mips/include/asm/mach-ar7/gpio.h41
-rw-r--r--arch/mips/include/asm/mach-ath25/gpio.h16
-rw-r--r--arch/mips/include/asm/mach-ath79/gpio.h26
-rw-r--r--arch/mips/include/asm/mach-au1x00/gpio-au1000.h148
-rw-r--r--arch/mips/include/asm/mach-au1x00/gpio.h86
-rw-r--r--arch/mips/include/asm/mach-bcm47xx/gpio.h17
-rw-r--r--arch/mips/include/asm/mach-bcm63xx/gpio.h15
-rw-r--r--arch/mips/include/asm/mach-cavium-octeon/gpio.h21
-rw-r--r--arch/mips/include/asm/mach-generic/gpio.h21
-rw-r--r--arch/mips/include/asm/mach-jz4740/gpio.h2
-rw-r--r--arch/mips/include/asm/mach-lantiq/gpio.h13
-rw-r--r--arch/mips/include/asm/mach-loongson64/gpio.h36
-rw-r--r--arch/mips/include/asm/mach-pistachio/gpio.h21
-rw-r--r--arch/mips/include/asm/mach-rc32434/gpio.h12
-rw-r--r--arch/mips/include/asm/mips-cm.h128
-rw-r--r--arch/mips/include/asm/mips-cpc.h10
-rw-r--r--arch/mips/include/asm/mipsregs.h62
-rw-r--r--arch/mips/include/asm/msa.h80
-rw-r--r--arch/mips/include/asm/netlogic/common.h4
-rw-r--r--arch/mips/include/asm/octeon/cvmx-bootinfo.h2
-rw-r--r--arch/mips/include/asm/octeon/cvmx-pip.h2
-rw-r--r--arch/mips/include/asm/octeon/cvmx-pko.h3
-rw-r--r--arch/mips/include/asm/octeon/cvmx-pow-defs.h29
-rw-r--r--arch/mips/include/asm/octeon/cvmx-pow.h9
-rw-r--r--arch/mips/include/asm/octeon/cvmx-wqe.h308
-rw-r--r--arch/mips/include/asm/pgtable-bits.h25
-rw-r--r--arch/mips/include/asm/pgtable.h2
-rw-r--r--arch/mips/include/asm/processor.h2
-rw-r--r--arch/mips/include/asm/ptrace.h80
-rw-r--r--arch/mips/include/asm/signal.h3
-rw-r--r--arch/mips/include/asm/spinlock.h5
-rw-r--r--arch/mips/include/asm/switch_to.h67
-rw-r--r--arch/mips/include/asm/thread_info.h5
-rw-r--r--arch/mips/include/asm/time.h2
-rw-r--r--arch/mips/include/asm/tlbdebug.h1
-rw-r--r--arch/mips/include/asm/uprobes.h58
-rw-r--r--arch/mips/include/asm/vpe.h2
-rw-r--r--arch/mips/include/uapi/asm/break.h2
-rw-r--r--arch/mips/include/uapi/asm/hwcap.h8
-rw-r--r--arch/mips/include/uapi/asm/inst.h40
-rw-r--r--arch/mips/include/uapi/asm/sigcontext.h12
-rw-r--r--arch/mips/include/uapi/asm/swab.h7
-rw-r--r--arch/mips/include/uapi/asm/ucontext.h65
-rw-r--r--arch/mips/include/uapi/asm/unistd.h18
-rw-r--r--arch/mips/jazz/irq.c7
-rw-r--r--arch/mips/jz4740/board-qi_lb60.c1
-rw-r--r--arch/mips/jz4740/gpio.c27
-rw-r--r--arch/mips/jz4740/time.c46
-rw-r--r--arch/mips/kernel/Makefile2
-rw-r--r--arch/mips/kernel/asm-offsets.c12
-rw-r--r--arch/mips/kernel/cevt-bcm1480.c44
-rw-r--r--arch/mips/kernel/cevt-ds1287.c37
-rw-r--r--arch/mips/kernel/cevt-gt641xx.c57
-rw-r--r--arch/mips/kernel/cevt-r4k.c18
-rw-r--r--arch/mips/kernel/cevt-sb1250.c45
-rw-r--r--arch/mips/kernel/cevt-txx9.c81
-rw-r--r--arch/mips/kernel/cpu-probe.c67
-rw-r--r--arch/mips/kernel/i8259.c384
-rw-r--r--arch/mips/kernel/idle.c1
-rw-r--r--arch/mips/kernel/jump_label.c2
-rw-r--r--arch/mips/kernel/mips-cm.c257
-rw-r--r--arch/mips/kernel/mips-cpc.c11
-rw-r--r--arch/mips/kernel/octeon_switch.S26
-rw-r--r--arch/mips/kernel/perf_event_mipsxx.c6
-rw-r--r--arch/mips/kernel/pm-cps.c2
-rw-r--r--arch/mips/kernel/ptrace.c88
-rw-r--r--arch/mips/kernel/r2300_switch.S28
-rw-r--r--arch/mips/kernel/r4k_fpu.S436
-rw-r--r--arch/mips/kernel/r4k_switch.S41
-rw-r--r--arch/mips/kernel/scall32-o32.S41
-rw-r--r--arch/mips/kernel/scall64-64.S40
-rw-r--r--arch/mips/kernel/scall64-n32.S21
-rw-r--r--arch/mips/kernel/scall64-o32.S21
-rw-r--r--arch/mips/kernel/setup.c2
-rw-r--r--arch/mips/kernel/signal-common.h9
-rw-r--r--arch/mips/kernel/signal.c433
-rw-r--r--arch/mips/kernel/signal32.c207
-rw-r--r--arch/mips/kernel/signal_n32.c6
-rw-r--r--arch/mips/kernel/smp.c2
-rw-r--r--arch/mips/kernel/spram.c1
-rw-r--r--arch/mips/kernel/sysrq.c14
-rw-r--r--arch/mips/kernel/traps.c57
-rw-r--r--arch/mips/kernel/unaligned.c74
-rw-r--r--arch/mips/kernel/uprobes.c341
-rw-r--r--arch/mips/kernel/vpe.c7
-rw-r--r--arch/mips/kvm/emulate.c2
-rw-r--r--arch/mips/kvm/locore.S16
-rw-r--r--arch/mips/kvm/mips.c6
-rw-r--r--arch/mips/lantiq/clk.c17
-rw-r--r--arch/mips/lasat/sysctl.c2
-rw-r--r--arch/mips/lib/dump_tlb.c45
-rw-r--r--arch/mips/lib/r3k_dump_tlb.c11
-rw-r--r--arch/mips/loongson32/common/time.c57
-rw-r--r--arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c46
-rw-r--r--arch/mips/loongson64/common/dma-swiotlb.c11
-rw-r--r--arch/mips/loongson64/loongson-3/hpet.c117
-rw-r--r--arch/mips/math-emu/Makefile4
-rw-r--r--arch/mips/math-emu/cp1emu.c376
-rw-r--r--arch/mips/math-emu/dp_2008class.c55
-rw-r--r--arch/mips/math-emu/dp_fmax.c213
-rw-r--r--arch/mips/math-emu/dp_fmin.c213
-rw-r--r--arch/mips/math-emu/dp_maddf.c265
-rw-r--r--arch/mips/math-emu/dp_msubf.c269
-rw-r--r--arch/mips/math-emu/dsemul.c1
-rw-r--r--arch/mips/math-emu/ieee754.h19
-rw-r--r--arch/mips/math-emu/ieee754int.h8
-rw-r--r--arch/mips/math-emu/me-debugfs.c2
-rw-r--r--arch/mips/math-emu/sp_2008class.c55
-rw-r--r--arch/mips/math-emu/sp_fmax.c213
-rw-r--r--arch/mips/math-emu/sp_fmin.c213
-rw-r--r--arch/mips/math-emu/sp_maddf.c255
-rw-r--r--arch/mips/math-emu/sp_msubf.c258
-rw-r--r--arch/mips/mm/c-r4k.c1
-rw-r--r--arch/mips/mm/dma-default.c56
-rw-r--r--arch/mips/mm/fault.c8
-rw-r--r--arch/mips/mm/init.c147
-rw-r--r--arch/mips/mm/sc-mips.c42
-rw-r--r--arch/mips/mm/tlb-r3k.c2
-rw-r--r--arch/mips/mti-malta/malta-init.c7
-rw-r--r--arch/mips/mti-malta/malta-int.c112
-rw-r--r--arch/mips/mti-malta/malta-memory.c25
-rw-r--r--arch/mips/net/bpf_jit_asm.S13
-rw-r--r--arch/mips/netlogic/common/irq.c12
-rw-r--r--arch/mips/netlogic/common/nlm-dma.c10
-rw-r--r--arch/mips/netlogic/common/smp.c6
-rw-r--r--arch/mips/netlogic/xlp/ahci-init-xlp2.c2
-rw-r--r--arch/mips/netlogic/xlp/nlm_hal.c2
-rw-r--r--arch/mips/oprofile/common.c1
-rw-r--r--arch/mips/oprofile/op_model_mipsxx.c4
-rw-r--r--arch/mips/pci/msi-octeon.c2
-rw-r--r--arch/mips/pci/msi-xlp.c20
-rw-r--r--arch/mips/pci/ops-emma2rh.c6
-rw-r--r--arch/mips/pci/pci-ar2315.c2
-rw-r--r--arch/mips/pci/pci-ar71xx.c6
-rw-r--r--arch/mips/pci/pci-ar724x.c6
-rw-r--r--arch/mips/pci/pci-lantiq.c1
-rw-r--r--arch/mips/pci/pci-rt3883.c7
-rw-r--r--arch/mips/pistachio/Kconfig13
-rw-r--r--arch/mips/pmcs-msp71xx/msp_irq_cic.c3
-rw-r--r--arch/mips/ralink/cevt-rt3352.c59
-rw-r--r--arch/mips/ralink/irq.c2
-rw-r--r--arch/mips/rb532/devices.c1
-rw-r--r--arch/mips/rb532/gpio.c6
-rw-r--r--arch/mips/sgi-ip27/ip27-timer.c7
-rw-r--r--arch/mips/sibyte/common/bus_watcher.c2
-rw-r--r--arch/mips/sni/time.c49
-rw-r--r--arch/mips/txx9/generic/setup.c16
214 files changed, 6184 insertions, 2939 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 199a83578..e3aa5b0b4 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1,8 +1,10 @@
config MIPS
bool
default y
+ select ARCH_SUPPORTS_UPROBES
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
+ select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
select HAVE_CONTEXT_TRACKING
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
@@ -13,7 +15,6 @@ config MIPS
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_BPF_JIT if !CPU_MICROMIPS
- select ARCH_HAVE_CUSTOM_GPIO_H
select HAVE_FUNCTION_TRACER
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
@@ -118,6 +119,7 @@ config ATH25
config ATH79
bool "Atheros AR71XX/AR724X/AR913X based boards"
+ select ARCH_HAS_RESET_CONTROLLER
select ARCH_REQUIRE_GPIOLIB
select BOOT_RAW
select CEVT_R4K
@@ -408,6 +410,7 @@ config MIPS_MALTA
select CEVT_R4K
select CSRC_R4K
select CLKSRC_MIPS_GIC
+ select COMMON_CLK
select DMA_MAYBE_COHERENT
select GENERIC_ISA_DMA
select HAVE_PCSPKR_PLATFORM
@@ -458,6 +461,7 @@ config MIPS_SEAD3
select CEVT_R4K
select CSRC_R4K
select CLKSRC_MIPS_GIC
+ select COMMON_CLK
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select DMA_NONCOHERENT
@@ -898,6 +902,7 @@ config NLM_XLP_BOARD
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL
select ARCH_PHYS_ADDR_T_64BIT
+ select ARCH_REQUIRE_GPIOLIB
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
@@ -947,6 +952,7 @@ source "arch/mips/jazz/Kconfig"
source "arch/mips/jz4740/Kconfig"
source "arch/mips/lantiq/Kconfig"
source "arch/mips/lasat/Kconfig"
+source "arch/mips/pistachio/Kconfig"
source "arch/mips/pmcs-msp71xx/Kconfig"
source "arch/mips/ralink/Kconfig"
source "arch/mips/sgi-ip27/Kconfig"
@@ -1040,6 +1046,9 @@ config FW_CFE
config ARCH_DMA_ADDR_T_64BIT
def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
+config ARCH_SUPPORTS_UPROBES
+ bool
+
config DMA_MAYBE_COHERENT
select DMA_NONCOHERENT
bool
@@ -1070,10 +1079,6 @@ config HOTPLUG_CPU
config SYS_SUPPORTS_HOTPLUG_CPU
bool
-config I8259
- bool
- select IRQ_DOMAIN
-
config MIPS_BONITO64
bool
@@ -1367,7 +1372,7 @@ config CPU_MIPS32_R2
otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
config CPU_MIPS32_R6
- bool "MIPS32 Release 6 (EXPERIMENTAL)"
+ bool "MIPS32 Release 6"
depends on SYS_HAS_CPU_MIPS32_R6
select CPU_HAS_PREFETCH
select CPU_SUPPORTS_32BIT_KERNEL
@@ -1418,7 +1423,7 @@ config CPU_MIPS64_R2
otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
config CPU_MIPS64_R6
- bool "MIPS64 Release 6 (EXPERIMENTAL)"
+ bool "MIPS64 Release 6"
depends on SYS_HAS_CPU_MIPS64_R6
select CPU_HAS_PREFETCH
select CPU_SUPPORTS_32BIT_KERNEL
@@ -1968,6 +1973,7 @@ config 32BIT
select TRAD_SIGNALS
help
Select this option if you want to build a 32-bit kernel.
+
config 64BIT
bool "64-bit kernel"
depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
@@ -2113,7 +2119,7 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
- depends on SYS_SUPPORTS_MULTITHREADING
+ depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select SYNC_R4K
@@ -2214,7 +2220,7 @@ config MIPS_VPE_APSP_API_MT
config MIPS_CMP
bool "MIPS CMP framework support (DEPRECATED)"
- depends on SYS_SUPPORTS_MIPS_CMP
+ depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
select MIPS_GIC_IPI
select SMP
select SYNC_R4K
@@ -2231,7 +2237,7 @@ config MIPS_CMP
config MIPS_CPS
bool "MIPS Coherent Processing System support"
- depends on SYS_SUPPORTS_MIPS_CPS
+ depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
select MIPS_CM
select MIPS_CPC
select MIPS_CPS_PM if HOTPLUG_CPU
@@ -2306,7 +2312,7 @@ config CPU_MICROMIPS
endchoice
config CPU_HAS_MSA
- bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
+ bool "Support for the MIPS SIMD Architecture"
depends on CPU_SUPPORTS_MSA
depends on 64BIT || MIPS_O32_FP64_SUPPORT
help
@@ -2591,6 +2597,7 @@ source "kernel/Kconfig.preempt"
config KEXEC
bool "Kexec system call"
+ select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
@@ -2646,7 +2653,7 @@ config SECCOMP
If unsure, say Y. Only embedded should say N here.
config MIPS_O32_FP64_SUPPORT
- bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
+ bool "Support for O32 binaries using 64-bit FP"
depends on 32BIT || MIPS32_O32
help
When this is enabled, the kernel will support use of 64-bit floating
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 3a2b775e8..e25052402 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -87,15 +87,6 @@ config SB1XXX_CORELIS
Select compile flags that produce code that can be processed by the
Corelis mksym utility and UDB Emulator.
-config RUNTIME_DEBUG
- bool "Enable run-time debugging"
- depends on DEBUG_KERNEL
- help
- If you say Y here, some debugging macros will do run-time checking.
- If you say N here, those macros will mostly turn to no-ops. See
- arch/mips/include/asm/debug.h for debugging macros.
- If unsure, say N.
-
config DEBUG_ZBOOT
bool "Enable compressed kernel support debugging"
depends on DEBUG_KERNEL && SYS_SUPPORTS_ZBOOT
diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index b9628983d..7fa24881b 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -6,13 +6,6 @@ config ALCHEMY_GPIOINT_AU1000
config ALCHEMY_GPIOINT_AU1300
bool
-# select this in your board config if you don't want to use the gpio
-# namespace as documented in the manuals. In this case however you need
-# to create the necessary gpio_* functions in your board code/headers!
-# see arch/mips/include/asm/mach-au1x00/gpio.h for more information.
-config ALCHEMY_GPIO_INDIRECT
- def_bool n
-
choice
prompt "Machine type"
depends on MIPS_ALCHEMY
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index acf9a2a37..79efe4c6e 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -34,6 +34,7 @@
#include <asm/idle.h>
#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
#include <prom.h>
const char *get_system_type(void)
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c
index 1e3b10238..85bb75669 100644
--- a/arch/mips/alchemy/board-mtx1.c
+++ b/arch/mips/alchemy/board-mtx1.c
@@ -32,6 +32,7 @@
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <prom.h>
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index f64744f3b..23800b8e6 100644
--- a/arch/mips/alchemy/common/Makefile
+++ b/arch/mips/alchemy/common/Makefile
@@ -5,10 +5,5 @@
# Makefile for the Alchemy Au1xx0 CPUs, generic files.
#
-obj-y += prom.o time.o clock.o platform.o power.o \
+obj-y += prom.o time.o clock.o platform.o power.o gpiolib.o \
setup.o sleeper.o dma.o dbdma.o vss.o irq.o usb.o
-
-# optional gpiolib support
-ifeq ($(CONFIG_ALCHEMY_GPIO_INDIRECT),)
- obj-$(CONFIG_GPIOLIB) += gpiolib.o
-endif
diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c
index 6e46abe0d..bd34f4093 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -35,6 +35,7 @@
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/slab.h>
@@ -389,12 +390,11 @@ static long alchemy_calc_div(unsigned long rate, unsigned long prate,
return div1;
}
-static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_clk,
- int scale, int maxdiv)
+static int alchemy_clk_fgcs_detr(struct clk_hw *hw,
+ struct clk_rate_request *req,
+ int scale, int maxdiv)
{
- struct clk *pc, *bpc, *free;
+ struct clk_hw *pc, *bpc, *free;
long tdv, tpr, pr, nr, br, bpr, diff, lastdiff;
int j;
@@ -408,7 +408,7 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
* the one that gets closest to but not over the requested rate.
*/
for (j = 0; j < 7; j++) {
- pc = clk_get_parent_by_index(hw->clk, j);
+ pc = clk_hw_get_parent_by_index(hw, j);
if (!pc)
break;
@@ -416,20 +416,20 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
* XXX: we would actually want clk_has_active_children()
* but this is a good-enough approximation for now.
*/
- if (!__clk_is_prepared(pc)) {
+ if (!clk_hw_is_prepared(pc)) {
if (!free)
free = pc;
}
- pr = clk_get_rate(pc);
- if (pr < rate)
+ pr = clk_hw_get_rate(pc);
+ if (pr < req->rate)
continue;
/* what can hardware actually provide */
- tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL);
+ tdv = alchemy_calc_div(req->rate, pr, scale, maxdiv, NULL);
nr = pr / tdv;
- diff = rate - nr;
- if (nr > rate)
+ diff = req->rate - nr;
+ if (nr > req->rate)
continue;
if (diff < lastdiff) {
@@ -448,15 +448,16 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
*/
if (lastdiff && free) {
for (j = (maxdiv == 4) ? 1 : scale; j <= maxdiv; j += scale) {
- tpr = rate * j;
+ tpr = req->rate * j;
if (tpr < 0)
break;
- pr = clk_round_rate(free, tpr);
+ pr = clk_hw_round_rate(free, tpr);
- tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL);
+ tdv = alchemy_calc_div(req->rate, pr, scale, maxdiv,
+ NULL);
nr = pr / tdv;
- diff = rate - nr;
- if (nr > rate)
+ diff = req->rate - nr;
+ if (nr > req->rate)
continue;
if (diff < lastdiff) {
lastdiff = diff;
@@ -469,9 +470,14 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
}
}
- *best_parent_rate = bpr;
- *best_parent_clk = __clk_get_hw(bpc);
- return br;
+ if (br < 0)
+ return br;
+
+ req->best_parent_rate = bpr;
+ req->best_parent_hw = bpc;
+ req->rate = br;
+
+ return 0;
}
static int alchemy_clk_fgv1_en(struct clk_hw *hw)
@@ -562,14 +568,10 @@ static unsigned long alchemy_clk_fgv1_recalc(struct clk_hw *hw,
return parent_rate / v;
}
-static long alchemy_clk_fgv1_detr(struct clk_hw *hw, unsigned long rate,
- unsigned long min_rate,
- unsigned long max_rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_clk)
+static int alchemy_clk_fgv1_detr(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
- return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
- best_parent_clk, 2, 512);
+ return alchemy_clk_fgcs_detr(hw, req, 2, 512);
}
/* Au1000, Au1100, Au15x0, Au12x0 */
@@ -696,11 +698,8 @@ static unsigned long alchemy_clk_fgv2_recalc(struct clk_hw *hw,
return t;
}
-static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate,
- unsigned long min_rate,
- unsigned long max_rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_clk)
+static int alchemy_clk_fgv2_detr(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
int scale, maxdiv;
@@ -713,8 +712,7 @@ static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate,
maxdiv = 512;
}
- return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
- best_parent_clk, scale, maxdiv);
+ return alchemy_clk_fgcs_detr(hw, req, scale, maxdiv);
}
/* Au1300 larger input mux, no separate disable bit, flexible divider */
@@ -917,17 +915,13 @@ static int alchemy_clk_csrc_setr(struct clk_hw *hw, unsigned long rate,
return 0;
}
-static long alchemy_clk_csrc_detr(struct clk_hw *hw, unsigned long rate,
- unsigned long min_rate,
- unsigned long max_rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_clk)
+static int alchemy_clk_csrc_detr(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
int scale = c->dt[2] == 3 ? 1 : 2; /* au1300 check */
- return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
- best_parent_clk, scale, 4);
+ return alchemy_clk_fgcs_detr(hw, req, scale, 4);
}
static struct clk_ops alchemy_clkops_csrc = {
diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index 6cb60abfd..da9f92200 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -491,7 +491,7 @@ static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type)
default:
ret = -EINVAL;
}
- __irq_set_chip_handler_name_locked(d->irq, chip, handler, name);
+ irq_set_chip_handler_name_locked(d, chip, handler, name);
wmb();
@@ -703,7 +703,7 @@ static int au1300_gpic_settype(struct irq_data *d, unsigned int type)
return -EINVAL;
}
- __irq_set_chip_handler_name_locked(d->irq, &au1300_gpic, hdl, name);
+ irq_set_chip_handler_name_locked(d, &au1300_gpic, hdl, name);
au1300_gpic_chgcfg(d->irq - ALCHEMY_GPIC_INT_BASE, GPIC_CFG_IC_MASK, s);
@@ -851,7 +851,7 @@ static struct syscore_ops alchemy_gpic_pmops = {
/* create chained handlers for the 4 IC requests to the MIPS IRQ ctrl */
#define DISP(name, base, addr) \
-static void au1000_##name##_dispatch(unsigned int irq, struct irq_desc *d) \
+static void au1000_##name##_dispatch(struct irq_desc *d) \
{ \
unsigned long r = __raw_readl((void __iomem *)KSEG1ADDR(addr)); \
if (likely(r)) \
@@ -865,7 +865,7 @@ DISP(ic0r1, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ1INT)
DISP(ic1r0, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ0INT)
DISP(ic1r1, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ1INT)
-static void alchemy_gpic_dispatch(unsigned int irq, struct irq_desc *d)
+static void alchemy_gpic_dispatch(struct irq_desc *d)
{
int i = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_PRIENC);
generic_handle_irq(ALCHEMY_GPIC_INT_BASE + i);
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 50e17e13c..f99d3ec17 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -69,11 +69,6 @@ static int au1x_rtcmatch2_set_next_event(unsigned long delta,
return 0;
}
-static void au1x_rtcmatch2_set_mode(enum clock_event_mode mode,
- struct clock_event_device *cd)
-{
-}
-
static irqreturn_t au1x_rtcmatch2_irq(int irq, void *dev_id)
{
struct clock_event_device *cd = dev_id;
@@ -86,7 +81,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 1500,
.set_next_event = au1x_rtcmatch2_set_next_event,
- .set_mode = au1x_rtcmatch2_set_mode,
.cpumask = cpu_all_mask,
};
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index c98c9ea33..faeddf119 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -8,6 +8,7 @@
*/
#include <linux/interrupt.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/irq.h>
@@ -85,13 +86,14 @@ EXPORT_SYMBOL_GPL(bcsr_mod);
/*
* DB1200/PB1200 CPLD IRQ muxer
*/
-static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
+static void bcsr_csc_handler(struct irq_desc *d)
{
unsigned short bisr = __raw_readw(bcsr_virt + BCSR_REG_INTSTAT);
+ struct irq_chip *chip = irq_desc_get_chip(d);
- disable_irq_nosync(irq);
+ chained_irq_enter(chip, d);
generic_handle_irq(bcsr_csc_base + __ffs(bisr));
- enable_irq(irq);
+ chained_irq_exit(chip, d);
}
static void bcsr_irq_mask(struct irq_data *d)
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 001102e19..bdeed9d13 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -33,6 +33,7 @@
#include <linux/spi/spi_gpio.h>
#include <linux/spi/ads7846.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-db1x00/bcsr.h>
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index 1c64fdbe4..b58077008 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -24,6 +24,7 @@
#include <linux/wm97xx.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1300.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1200fb.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 0fd5177e3..5740bcfdf 100644
--- a/arch/mips/alchemy/devboards/db1550.c
+++ b/arch/mips/alchemy/devboards/db1550.c
@@ -20,6 +20,7 @@
#include <linux/spi/flash.h>
#include <asm/bootinfo.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
#include <asm/mach-au1x00/au1xxx_psc.h>
diff --git a/arch/mips/alchemy/devboards/pm.c b/arch/mips/alchemy/devboards/pm.c
index bfeb8f3c0..93024dc6b 100644
--- a/arch/mips/alchemy/devboards/pm.c
+++ b/arch/mips/alchemy/devboards/pm.c
@@ -9,7 +9,7 @@
#include <linux/suspend.h>
#include <linux/sysfs.h>
#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-au1x00/gpio.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-db1x00/bcsr.h>
/*
diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c
index d8dbd8f0c..f4930456e 100644
--- a/arch/mips/ar7/gpio.c
+++ b/arch/mips/ar7/gpio.c
@@ -21,7 +21,10 @@
#include <linux/module.h>
#include <linux/gpio.h>
-#include <asm/mach-ar7/gpio.h>
+#include <asm/mach-ar7/ar7.h>
+
+#define AR7_GPIO_MAX 32
+#define TITAN_GPIO_MAX 51
struct ar7_gpio_chip {
void __iomem *regs;
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index be9ff1673..58fca9ad5 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -39,7 +39,6 @@
#include <asm/addrspace.h>
#include <asm/mach-ar7/ar7.h>
-#include <asm/mach-ar7/gpio.h>
#include <asm/mach-ar7/prom.h>
/*****************************************************************************
@@ -679,7 +678,8 @@ static int __init ar7_register_devices(void)
}
if (ar7_has_high_cpmac()) {
- res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
+ res = fixed_phy_add(PHY_POLL, cpmac_high.id,
+ &fixed_phy_status, -1);
if (!res) {
cpmac_get_mac(1, cpmac_high_data.dev_addr);
@@ -692,7 +692,7 @@ static int __init ar7_register_devices(void)
} else
cpmac_low_data.phy_mask = 0xffffffff;
- res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
+ res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status, -1);
if (!res) {
cpmac_get_mac(0, cpmac_low_data.dev_addr);
res = platform_device_register(&cpmac_low);
diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c
index 820b7a313..7bb9a670b 100644
--- a/arch/mips/ar7/setup.c
+++ b/arch/mips/ar7/setup.c
@@ -23,7 +23,6 @@
#include <asm/reboot.h>
#include <asm/mach-ar7/ar7.h>
#include <asm/mach-ar7/prom.h>
-#include <asm/mach-ar7/gpio.h>
static void ar7_machine_restart(char *command)
{
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index ec9a371f1..8da996142 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -69,7 +69,7 @@ static struct irqaction ar2315_ahb_err_interrupt = {
.name = "ar2315-ahb-error",
};
-static void ar2315_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar2315_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
ar2315_rst_reg_read(AR2315_IMR);
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index e63e38fa4..acd55a9cf 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -73,7 +73,7 @@ static struct irqaction ar5312_ahb_err_interrupt = {
.name = "ar5312-ahb-error",
};
-static void ar5312_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar5312_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
ar5312_rst_reg_read(AR5312_IMR);
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index 5c9ff692f..fcc382cfc 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -8,7 +8,7 @@
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
-obj-y := prom.o setup.o irq.o common.o clock.o gpio.o
+obj-y := prom.o setup.o irq.o common.o clock.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/mips/ath79/common.h b/arch/mips/ath79/common.h
index e5ea71277..ca7cc19ad 100644
--- a/arch/mips/ath79/common.h
+++ b/arch/mips/ath79/common.h
@@ -25,9 +25,6 @@ unsigned long ath79_get_sys_clk_rate(const char *id);
void ath79_ddr_ctrl_init(void);
void ath79_ddr_wb_flush(unsigned int reg);
-void ath79_gpio_function_enable(u32 mask);
-void ath79_gpio_function_disable(u32 mask);
-void ath79_gpio_function_setup(u32 set, u32 clear);
void ath79_gpio_init(void);
#endif /* __ATH79_COMMON_H */
diff --git a/arch/mips/ath79/gpio.c b/arch/mips/ath79/gpio.c
deleted file mode 100644
index f59ccb265..000000000
--- a/arch/mips/ath79/gpio.c
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * Atheros AR71XX/AR724X/AR913X GPIO API support
- *
- * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Parts of this file are based on Atheros' 2.6.15/2.6.31 BSP
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/gpio.h>
-#include <linux/platform_data/gpio-ath79.h>
-#include <linux/of_device.h>
-
-#include <asm/mach-ath79/ar71xx_regs.h>
-#include <asm/mach-ath79/ath79.h>
-#include "common.h"
-
-static void __iomem *ath79_gpio_base;
-static u32 ath79_gpio_count;
-static DEFINE_SPINLOCK(ath79_gpio_lock);
-
-static void __ath79_gpio_set_value(unsigned gpio, int value)
-{
- void __iomem *base = ath79_gpio_base;
-
- if (value)
- __raw_writel(1 << gpio, base + AR71XX_GPIO_REG_SET);
- else
- __raw_writel(1 << gpio, base + AR71XX_GPIO_REG_CLEAR);
-}
-
-static int __ath79_gpio_get_value(unsigned gpio)
-{
- return (__raw_readl(ath79_gpio_base + AR71XX_GPIO_REG_IN) >> gpio) & 1;
-}
-
-static int ath79_gpio_get_value(struct gpio_chip *chip, unsigned offset)
-{
- return __ath79_gpio_get_value(offset);
-}
-
-static void ath79_gpio_set_value(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- __ath79_gpio_set_value(offset, value);
-}
-
-static int ath79_gpio_direction_input(struct gpio_chip *chip,
- unsigned offset)
-{
- void __iomem *base = ath79_gpio_base;
- unsigned long flags;
-
- spin_lock_irqsave(&ath79_gpio_lock, flags);
-
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) & ~(1 << offset),
- base + AR71XX_GPIO_REG_OE);
-
- spin_unlock_irqrestore(&ath79_gpio_lock, flags);
-
- return 0;
-}
-
-static int ath79_gpio_direction_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- void __iomem *base = ath79_gpio_base;
- unsigned long flags;
-
- spin_lock_irqsave(&ath79_gpio_lock, flags);
-
- if (value)
- __raw_writel(1 << offset, base + AR71XX_GPIO_REG_SET);
- else
- __raw_writel(1 << offset, base + AR71XX_GPIO_REG_CLEAR);
-
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) | (1 << offset),
- base + AR71XX_GPIO_REG_OE);
-
- spin_unlock_irqrestore(&ath79_gpio_lock, flags);
-
- return 0;
-}
-
-static int ar934x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
-{
- void __iomem *base = ath79_gpio_base;
- unsigned long flags;
-
- spin_lock_irqsave(&ath79_gpio_lock, flags);
-
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) | (1 << offset),
- base + AR71XX_GPIO_REG_OE);
-
- spin_unlock_irqrestore(&ath79_gpio_lock, flags);
-
- return 0;
-}
-
-static int ar934x_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- void __iomem *base = ath79_gpio_base;
- unsigned long flags;
-
- spin_lock_irqsave(&ath79_gpio_lock, flags);
-
- if (value)
- __raw_writel(1 << offset, base + AR71XX_GPIO_REG_SET);
- else
- __raw_writel(1 << offset, base + AR71XX_GPIO_REG_CLEAR);
-
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_OE) & ~(1 << offset),
- base + AR71XX_GPIO_REG_OE);
-
- spin_unlock_irqrestore(&ath79_gpio_lock, flags);
-
- return 0;
-}
-
-static struct gpio_chip ath79_gpio_chip = {
- .label = "ath79",
- .get = ath79_gpio_get_value,
- .set = ath79_gpio_set_value,
- .direction_input = ath79_gpio_direction_input,
- .direction_output = ath79_gpio_direction_output,
- .base = 0,
-};
-
-static void __iomem *ath79_gpio_get_function_reg(void)
-{
- u32 reg = 0;
-
- if (soc_is_ar71xx() ||
- soc_is_ar724x() ||
- soc_is_ar913x() ||
- soc_is_ar933x())
- reg = AR71XX_GPIO_REG_FUNC;
- else if (soc_is_ar934x())
- reg = AR934X_GPIO_REG_FUNC;
- else
- BUG();
-
- return ath79_gpio_base + reg;
-}
-
-void ath79_gpio_function_setup(u32 set, u32 clear)
-{
- void __iomem *reg = ath79_gpio_get_function_reg();
- unsigned long flags;
-
- spin_lock_irqsave(&ath79_gpio_lock, flags);
-
- __raw_writel((__raw_readl(reg) & ~clear) | set, reg);
- /* flush write */
- __raw_readl(reg);
-
- spin_unlock_irqrestore(&ath79_gpio_lock, flags);
-}
-
-void ath79_gpio_function_enable(u32 mask)
-{
- ath79_gpio_function_setup(mask, 0);
-}
-
-void ath79_gpio_function_disable(u32 mask)
-{
- ath79_gpio_function_setup(0, mask);
-}
-
-static const struct of_device_id ath79_gpio_of_match[] = {
- { .compatible = "qca,ar7100-gpio" },
- { .compatible = "qca,ar9340-gpio" },
- {},
-};
-
-static int ath79_gpio_probe(struct platform_device *pdev)
-{
- struct ath79_gpio_platform_data *pdata = pdev->dev.platform_data;
- struct device_node *np = pdev->dev.of_node;
- struct resource *res;
- bool oe_inverted;
- int err;
-
- if (np) {
- err = of_property_read_u32(np, "ngpios", &ath79_gpio_count);
- if (err) {
- dev_err(&pdev->dev, "ngpios property is not valid\n");
- return err;
- }
- if (ath79_gpio_count >= 32) {
- dev_err(&pdev->dev, "ngpios must be less than 32\n");
- return -EINVAL;
- }
- oe_inverted = of_device_is_compatible(np, "qca,ar9340-gpio");
- } else if (pdata) {
- ath79_gpio_count = pdata->ngpios;
- oe_inverted = pdata->oe_inverted;
- } else {
- dev_err(&pdev->dev, "No DT node or platform data found\n");
- return -EINVAL;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- ath79_gpio_base = devm_ioremap_nocache(
- &pdev->dev, res->start, resource_size(res));
- if (!ath79_gpio_base)
- return -ENOMEM;
-
- ath79_gpio_chip.dev = &pdev->dev;
- ath79_gpio_chip.ngpio = ath79_gpio_count;
- if (oe_inverted) {
- ath79_gpio_chip.direction_input = ar934x_gpio_direction_input;
- ath79_gpio_chip.direction_output = ar934x_gpio_direction_output;
- }
-
- err = gpiochip_add(&ath79_gpio_chip);
- if (err) {
- dev_err(&pdev->dev,
- "cannot add AR71xx GPIO chip, error=%d", err);
- return err;
- }
-
- return 0;
-}
-
-static struct platform_driver ath79_gpio_driver = {
- .driver = {
- .name = "ath79-gpio",
- .of_match_table = ath79_gpio_of_match,
- },
- .probe = ath79_gpio_probe,
-};
-
-module_platform_driver(ath79_gpio_driver);
-
-int gpio_get_value(unsigned gpio)
-{
- if (gpio < ath79_gpio_count)
- return __ath79_gpio_get_value(gpio);
-
- return __gpio_get_value(gpio);
-}
-EXPORT_SYMBOL(gpio_get_value);
-
-void gpio_set_value(unsigned gpio, int value)
-{
- if (gpio < ath79_gpio_count)
- __ath79_gpio_set_value(gpio, value);
- else
- __gpio_set_value(gpio, value);
-}
-EXPORT_SYMBOL(gpio_set_value);
-
-int gpio_to_irq(unsigned gpio)
-{
- /* FIXME */
- return -EINVAL;
-}
-EXPORT_SYMBOL(gpio_to_irq);
-
-int irq_to_gpio(unsigned irq)
-{
- /* FIXME */
- return -EINVAL;
-}
-EXPORT_SYMBOL(irq_to_gpio);
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index afb009603..eeb3953ed 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -17,7 +17,6 @@
#include <linux/interrupt.h>
#include <linux/irqchip.h>
#include <linux/of_irq.h>
-#include "../../../drivers/irqchip/irqchip.h"
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
@@ -27,7 +26,7 @@
#include "common.h"
#include "machtypes.h"
-static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ath79_misc_irq_handler(struct irq_desc *desc)
{
void __iomem *base = ath79_reset_base;
u32 pending;
@@ -120,12 +119,10 @@ static void __init ath79_misc_irq_init(void)
irq_set_chained_handler(ATH79_CPU_IRQ(6), ath79_misc_irq_handler);
}
-static void ar934x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void ar934x_ip2_irq_dispatch(struct irq_desc *desc)
{
u32 status;
- disable_irq_nosync(irq);
-
status = ath79_reset_rr(AR934X_RESET_REG_PCIE_WMAC_INT_STATUS);
if (status & AR934X_PCIE_WMAC_INT_PCIE_ALL) {
@@ -137,8 +134,6 @@ static void ar934x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
} else {
spurious_interrupt();
}
-
- enable_irq(irq);
}
static void ar934x_ip2_irq_init(void)
@@ -153,18 +148,16 @@ static void ar934x_ip2_irq_init(void)
irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch);
}
-static void qca955x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void qca955x_ip2_irq_dispatch(struct irq_desc *desc)
{
u32 status;
- disable_irq_nosync(irq);
-
status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS);
status &= QCA955X_EXT_INT_PCIE_RC1_ALL | QCA955X_EXT_INT_WMAC_ALL;
if (status == 0) {
spurious_interrupt();
- goto enable;
+ return;
}
if (status & QCA955X_EXT_INT_PCIE_RC1_ALL) {
@@ -176,17 +169,12 @@ static void qca955x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
/* TODO: flush DDR? */
generic_handle_irq(ATH79_IP2_IRQ(1));
}
-
-enable:
- enable_irq(irq);
}
-static void qca955x_ip3_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void qca955x_ip3_irq_dispatch(struct irq_desc *desc)
{
u32 status;
- disable_irq_nosync(irq);
-
status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS);
status &= QCA955X_EXT_INT_PCIE_RC2_ALL |
QCA955X_EXT_INT_USB1 |
@@ -194,7 +182,7 @@ static void qca955x_ip3_irq_dispatch(unsigned int irq, struct irq_desc *desc)
if (status == 0) {
spurious_interrupt();
- goto enable;
+ return;
}
if (status & QCA955X_EXT_INT_USB1) {
@@ -211,9 +199,6 @@ static void qca955x_ip3_irq_dispatch(unsigned int irq, struct irq_desc *desc)
/* TODO: flush DDR? */
generic_handle_irq(ATH79_IP3_IRQ(2));
}
-
-enable:
- enable_irq(irq);
}
static void qca955x_irq_init(void)
@@ -308,8 +293,26 @@ static int __init ath79_misc_intc_of_init(
return 0;
}
-IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
- ath79_misc_intc_of_init);
+
+static int __init ar7100_misc_intc_of_init(
+ struct device_node *node, struct device_node *parent)
+{
+ ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
+ return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
+ ar7100_misc_intc_of_init);
+
+static int __init ar7240_misc_intc_of_init(
+ struct device_node *node, struct device_node *parent)
+{
+ ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
+ return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
+ ar7240_misc_intc_of_init);
static int __init ar79_cpu_intc_of_init(
struct device_node *node, struct device_node *parent)
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 1ba21204e..9a0013703 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -216,9 +216,9 @@ void __init plat_mem_setup(void)
AR71XX_RESET_SIZE);
ath79_pll_base = ioremap_nocache(AR71XX_PLL_BASE,
AR71XX_PLL_SIZE);
+ ath79_detect_sys_type();
ath79_ddr_ctrl_init();
- ath79_detect_sys_type();
if (mips_machtype != ATH79_MACH_GENERIC_OF)
detect_memory_region(0, ATH79_MEM_SIZE_MIN, ATH79_MEM_SIZE_MAX);
diff --git a/arch/mips/bcm47xx/buttons.c b/arch/mips/bcm47xx/buttons.c
index 08a4abf09..52caa75bf 100644
--- a/arch/mips/bcm47xx/buttons.c
+++ b/arch/mips/bcm47xx/buttons.c
@@ -396,10 +396,9 @@ static int __init bcm47xx_buttons_copy(const struct gpio_keys_button *buttons,
{
size_t size = nbuttons * sizeof(*buttons);
- bcm47xx_button_pdata.buttons = kmalloc(size, GFP_KERNEL);
+ bcm47xx_button_pdata.buttons = kmemdup(buttons, size, GFP_KERNEL);
if (!bcm47xx_button_pdata.buttons)
return -ENOMEM;
- memcpy(bcm47xx_button_pdata.buttons, buttons, size);
bcm47xx_button_pdata.nbuttons = nbuttons;
return 0;
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 98c075f81..17503a059 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -263,7 +263,7 @@ static int __init bcm47xx_register_bus_complete(void)
bcm47xx_leds_register();
bcm47xx_workarounds();
- fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
+ fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status, -1);
return 0;
}
device_initcall(bcm47xx_register_bus_complete);
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index e3e808a6c..1a47ec2a0 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -60,7 +60,7 @@ static inline int enable_irq_for_cpu(int cpu, struct irq_data *d,
if (m)
enable &= cpumask_test_cpu(cpu, m);
else if (irqd_affinity_was_set(d))
- enable &= cpumask_test_cpu(cpu, d->affinity);
+ enable &= cpumask_test_cpu(cpu, irq_data_get_affinity_mask(d));
#endif
return enable;
}
@@ -365,9 +365,9 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
irqd_set_trigger_type(d, flow_type);
if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
- __irq_set_handler_locked(d->irq, handle_level_irq);
+ irq_set_handler_locked(d, handle_level_irq);
else
- __irq_set_handler_locked(d->irq, handle_edge_irq);
+ irq_set_handler_locked(d, handle_edge_irq);
return IRQ_SET_MASK_OK_NOCOPY;
}
diff --git a/arch/mips/bmips/irq.c b/arch/mips/bmips/irq.c
index 14552e58f..e7fc6f934 100644
--- a/arch/mips/bmips/irq.c
+++ b/arch/mips/bmips/irq.c
@@ -34,5 +34,5 @@ void __init arch_init_irq(void)
irqchip_init();
}
-OF_DECLARE_2(irqchip, mips_cpu_intc, "mti,cpu-interrupt-controller",
+IRQCHIP_DECLARE(mips_cpu_intc, "mti,cpu-interrupt-controller",
mips_cpu_irq_of_init);
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index dc91bde10..d5bdee115 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -78,7 +78,7 @@ endif
vmlinuzobjs-y += $(obj)/piggy.o
-quiet_cmd_zld = LD $@
+quiet_cmd_zld = LD $@
cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
quiet_cmd_strip = STRIP $@
cmd_strip = $(STRIP) -s $@
diff --git a/arch/mips/boot/dts/netlogic/xlp_evp.dts b/arch/mips/boot/dts/netlogic/xlp_evp.dts
index 89ad04808..ec16ec2d8 100644
--- a/arch/mips/boot/dts/netlogic/xlp_evp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_evp.dts
@@ -110,6 +110,18 @@
read-only;
};
};
+
+ gpio: xlp_gpio@34100 {
+ compatible = "netlogic,xlp832-gpio";
+ reg = <0 0x34100 0x1000>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pic>;
+ interrupts = <39>;
+ interrupt-controller;
+ };
};
chosen {
diff --git a/arch/mips/boot/dts/netlogic/xlp_fvp.dts b/arch/mips/boot/dts/netlogic/xlp_fvp.dts
index 63e62b7bd..4bcebe641 100644
--- a/arch/mips/boot/dts/netlogic/xlp_fvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_fvp.dts
@@ -110,6 +110,18 @@
read-only;
};
};
+
+ gpio: xlp_gpio@34100 {
+ compatible = "netlogic,xlp208-gpio";
+ reg = <0 0x34100 0x1000>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pic>;
+ interrupts = <39>;
+ interrupt-controller;
+ };
};
chosen {
diff --git a/arch/mips/boot/dts/netlogic/xlp_gvp.dts b/arch/mips/boot/dts/netlogic/xlp_gvp.dts
index bb4ecd1d4..b3ccb82ad 100644
--- a/arch/mips/boot/dts/netlogic/xlp_gvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_gvp.dts
@@ -69,6 +69,17 @@
};
};
+ gpio: xlp_gpio@114100 {
+ compatible = "netlogic,xlp980-gpio";
+ reg = <0 0x114100 0x1000>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pic>;
+ interrupts = <39>;
+ interrupt-controller;
+ };
};
chosen {
diff --git a/arch/mips/boot/dts/netlogic/xlp_rvp.dts b/arch/mips/boot/dts/netlogic/xlp_rvp.dts
index 7188aed2e..3783639a3 100644
--- a/arch/mips/boot/dts/netlogic/xlp_rvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_rvp.dts
@@ -69,6 +69,17 @@
};
};
+ gpio: xlp_gpio@114100 {
+ compatible = "netlogic,xlp532-gpio";
+ reg = <0 0x114100 0x1000>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pic>;
+ interrupts = <39>;
+ interrupt-controller;
+ };
};
chosen {
diff --git a/arch/mips/boot/dts/netlogic/xlp_svp.dts b/arch/mips/boot/dts/netlogic/xlp_svp.dts
index 1ebd00eda..44d6640c1 100644
--- a/arch/mips/boot/dts/netlogic/xlp_svp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_svp.dts
@@ -110,6 +110,18 @@
read-only;
};
};
+
+ gpio: xlp_gpio@34100 {
+ compatible = "netlogic,xlp316-gpio";
+ reg = <0 0x34100 0x1000>;
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pic>;
+ interrupts = <39>;
+ interrupt-controller;
+ };
};
chosen {
diff --git a/arch/mips/boot/dts/qca/ar9132.dtsi b/arch/mips/boot/dts/qca/ar9132.dtsi
index 4759cff81..fb7734ead 100644
--- a/arch/mips/boot/dts/qca/ar9132.dtsi
+++ b/arch/mips/boot/dts/qca/ar9132.dtsi
@@ -115,6 +115,14 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ rst: reset-controller@1806001c {
+ compatible = "qca,ar9132-reset",
+ "qca,ar7100-reset";
+ reg = <0x1806001c 0x4>;
+
+ #reset-cells = <1>;
+ };
};
spi@1f000000 {
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index d8960d464..2cd45f5f9 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -161,9 +161,6 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
{
void *ret;
- if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
- return ret;
-
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
@@ -194,11 +191,6 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
static void octeon_dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
{
- int order = get_order(size);
-
- if (dma_release_from_coherent(dev, order, vaddr))
- return;
-
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
index 9eb0feef4..36e30d65b 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
@@ -195,6 +195,12 @@ int cvmx_helper_board_get_mii_address(int ipd_port)
return 8;
else
return -1;
+ case CVMX_BOARD_TYPE_KONTRON_S1901:
+ if (ipd_port == CVMX_HELPER_BOARD_MGMT_IPD_PORT)
+ return 1;
+ else
+ return -1;
+
}
/* Some unknown board. Somebody forgot to update this function... */
diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-util.c b/arch/mips/cavium-octeon/executive/cvmx-helper-util.c
index 453d7f664..b45b29757 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper-util.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper-util.c
@@ -95,9 +95,9 @@ int cvmx_helper_dump_packet(cvmx_wqe_t *work)
uint8_t *data_address;
uint8_t *end_of_data;
- cvmx_dprintf("Packet Length: %u\n", work->len);
- cvmx_dprintf(" Input Port: %u\n", work->ipprt);
- cvmx_dprintf(" QoS: %u\n", work->qos);
+ cvmx_dprintf("Packet Length: %u\n", work->word1.len);
+ cvmx_dprintf(" Input Port: %u\n", cvmx_wqe_get_port(work));
+ cvmx_dprintf(" QoS: %u\n", cvmx_wqe_get_qos(work));
cvmx_dprintf(" Buffers: %u\n", work->word2.s.bufs);
if (work->word2.s.bufs == 0) {
@@ -127,7 +127,7 @@ int cvmx_helper_dump_packet(cvmx_wqe_t *work)
}
} else
buffer_ptr = work->packet_ptr;
- remaining_bytes = work->len;
+ remaining_bytes = work->word1.len;
while (remaining_bytes) {
start_of_buffer =
@@ -382,6 +382,10 @@ int cvmx_helper_get_ipd_port(int interface, int port)
return port + 32;
case 3:
return port + 36;
+ case 4:
+ return port + 40;
+ case 5:
+ return port + 44;
}
return -1;
}
@@ -404,6 +408,10 @@ int cvmx_helper_get_interface_num(int ipd_port)
return 2;
else if (ipd_port < 40)
return 3;
+ else if (ipd_port < 44)
+ return 4;
+ else if (ipd_port < 48)
+ return 5;
else
cvmx_dprintf("cvmx_helper_get_interface_num: Illegal IPD "
"port number\n");
@@ -428,6 +436,10 @@ int cvmx_helper_get_interface_index_num(int ipd_port)
return ipd_port & 3;
else if (ipd_port < 40)
return ipd_port & 3;
+ else if (ipd_port < 44)
+ return ipd_port & 3;
+ else if (ipd_port < 48)
+ return ipd_port & 3;
else
cvmx_dprintf("cvmx_helper_get_interface_index_num: "
"Illegal IPD port number\n");
diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c b/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c
index 7653b7e92..a56ee590d 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c
@@ -124,6 +124,13 @@ int __cvmx_helper_xaui_enable(int interface)
union cvmx_gmxx_tx_int_en gmx_tx_int_en;
union cvmx_pcsxx_int_en_reg pcsx_int_en_reg;
+ /* Setup PKND */
+ if (octeon_has_feature(OCTEON_FEATURE_PKND)) {
+ gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(0, interface));
+ gmx_cfg.s.pknd = cvmx_helper_get_ipd_port(interface, 0);
+ cvmx_write_csr(CVMX_GMXX_PRTX_CFG(0, interface), gmx_cfg.u64);
+ }
+
/* (1) Interface has already been enabled. */
/* (2) Disable GMX. */
@@ -151,7 +158,12 @@ int __cvmx_helper_xaui_enable(int interface)
/* (4)c Aply reset sequence */
xauiCtl.u64 = cvmx_read_csr(CVMX_PCSXX_CONTROL1_REG(interface));
xauiCtl.s.lo_pwr = 0;
- xauiCtl.s.reset = 1;
+
+ /* Issuing a reset here seems to hang some CN68XX chips. */
+ if (!OCTEON_IS_MODEL(OCTEON_CN68XX_PASS1_X) &&
+ !OCTEON_IS_MODEL(OCTEON_CN68XX_PASS2_X))
+ xauiCtl.s.reset = 1;
+
cvmx_write_csr(CVMX_PCSXX_CONTROL1_REG(interface), xauiCtl.u64);
/* Wait for PCS to come out of reset */
diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c
index 7e5cf7a5e..376701f41 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c
@@ -83,6 +83,8 @@ static cvmx_helper_link_info_t
*/
int cvmx_helper_get_number_of_interfaces(void)
{
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+ return 9;
if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
return 4;
else
@@ -656,6 +658,21 @@ static int __cvmx_helper_global_setup_pko(void)
fau_to.s.tout_val = 0xfff;
fau_to.s.tout_enb = 0;
cvmx_write_csr(CVMX_IOB_FAU_TIMEOUT, fau_to.u64);
+
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+ union cvmx_pko_reg_min_pkt min_pkt;
+
+ min_pkt.u64 = 0;
+ min_pkt.s.size1 = 59;
+ min_pkt.s.size2 = 59;
+ min_pkt.s.size3 = 59;
+ min_pkt.s.size4 = 59;
+ min_pkt.s.size5 = 59;
+ min_pkt.s.size6 = 59;
+ min_pkt.s.size7 = 59;
+ cvmx_write_csr(CVMX_PKO_REG_MIN_PKT, min_pkt.u64);
+ }
+
return 0;
}
diff --git a/arch/mips/cavium-octeon/executive/cvmx-pko.c b/arch/mips/cavium-octeon/executive/cvmx-pko.c
index 008b881cd..87be167a7 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-pko.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-pko.c
@@ -39,6 +39,143 @@
* Internal state of packet output
*/
+static int __cvmx_pko_int(int interface, int index)
+{
+ switch (interface) {
+ case 0:
+ return index;
+ case 1:
+ return 4;
+ case 2:
+ return index + 0x08;
+ case 3:
+ return index + 0x0c;
+ case 4:
+ return index + 0x10;
+ case 5:
+ return 0x1c;
+ case 6:
+ return 0x1d;
+ case 7:
+ return 0x1e;
+ case 8:
+ return 0x1f;
+ default:
+ return -1;
+ }
+}
+
+static void __cvmx_pko_iport_config(int pko_port)
+{
+ int queue;
+ const int num_queues = 1;
+ const int base_queue = pko_port;
+ const int static_priority_end = 1;
+ const int static_priority_base = 1;
+
+ for (queue = 0; queue < num_queues; queue++) {
+ union cvmx_pko_mem_iqueue_ptrs config;
+ cvmx_cmd_queue_result_t cmd_res;
+ uint64_t *buf_ptr;
+
+ config.u64 = 0;
+ config.s.index = queue;
+ config.s.qid = base_queue + queue;
+ config.s.ipid = pko_port;
+ config.s.tail = (queue == (num_queues - 1));
+ config.s.s_tail = (queue == static_priority_end);
+ config.s.static_p = (static_priority_base >= 0);
+ config.s.static_q = (queue <= static_priority_end);
+ config.s.qos_mask = 0xff;
+
+ cmd_res = cvmx_cmd_queue_initialize(
+ CVMX_CMD_QUEUE_PKO(base_queue + queue),
+ CVMX_PKO_MAX_QUEUE_DEPTH,
+ CVMX_FPA_OUTPUT_BUFFER_POOL,
+ (CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE -
+ CVMX_PKO_COMMAND_BUFFER_SIZE_ADJUST * 8));
+
+ WARN(cmd_res,
+ "%s: cmd_res=%d pko_port=%d base_queue=%d num_queues=%d queue=%d\n",
+ __func__, (int)cmd_res, pko_port, base_queue,
+ num_queues, queue);
+
+ buf_ptr = (uint64_t *)cvmx_cmd_queue_buffer(
+ CVMX_CMD_QUEUE_PKO(base_queue + queue));
+ config.s.buf_ptr = cvmx_ptr_to_phys(buf_ptr) >> 7;
+ CVMX_SYNCWS;
+ cvmx_write_csr(CVMX_PKO_MEM_IQUEUE_PTRS, config.u64);
+ }
+}
+
+static void __cvmx_pko_queue_alloc_o68(void)
+{
+ int port;
+
+ for (port = 0; port < 48; port++)
+ __cvmx_pko_iport_config(port);
+}
+
+static void __cvmx_pko_port_map_o68(void)
+{
+ int port;
+ int interface, index;
+ cvmx_helper_interface_mode_t mode;
+ union cvmx_pko_mem_iport_ptrs config;
+
+ /*
+ * Initialize every iport with the invalid eid.
+ */
+ config.u64 = 0;
+ config.s.eid = 31; /* Invalid */
+ for (port = 0; port < 128; port++) {
+ config.s.ipid = port;
+ cvmx_write_csr(CVMX_PKO_MEM_IPORT_PTRS, config.u64);
+ }
+
+ /*
+ * Set up PKO_MEM_IPORT_PTRS
+ */
+ for (port = 0; port < 48; port++) {
+ interface = cvmx_helper_get_interface_num(port);
+ index = cvmx_helper_get_interface_index_num(port);
+ mode = cvmx_helper_interface_get_mode(interface);
+ if (mode == CVMX_HELPER_INTERFACE_MODE_DISABLED)
+ continue;
+
+ config.s.ipid = port;
+ config.s.qos_mask = 0xff;
+ config.s.crc = 1;
+ config.s.min_pkt = 1;
+ config.s.intr = __cvmx_pko_int(interface, index);
+ config.s.eid = config.s.intr;
+ config.s.pipe = (mode == CVMX_HELPER_INTERFACE_MODE_LOOP) ?
+ index : port;
+ cvmx_write_csr(CVMX_PKO_MEM_IPORT_PTRS, config.u64);
+ }
+}
+
+static void __cvmx_pko_chip_init(void)
+{
+ int i;
+
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+ __cvmx_pko_port_map_o68();
+ __cvmx_pko_queue_alloc_o68();
+ return;
+ }
+
+ /*
+ * Initialize queues
+ */
+ for (i = 0; i < CVMX_PKO_MAX_OUTPUT_QUEUES; i++) {
+ const uint64_t priority = 8;
+
+ cvmx_pko_config_port(CVMX_PKO_MEM_QUEUE_PTRS_ILLEGAL_PID, i, 1,
+ &priority);
+ }
+}
+
/**
* Call before any other calls to initialize the packet
* output system. This does chip global config, and should only be
@@ -47,8 +184,6 @@
void cvmx_pko_initialize_global(void)
{
- int i;
- uint64_t priority = 8;
union cvmx_pko_reg_cmd_buf config;
/*
@@ -62,9 +197,10 @@ void cvmx_pko_initialize_global(void)
cvmx_write_csr(CVMX_PKO_REG_CMD_BUF, config.u64);
- for (i = 0; i < CVMX_PKO_MAX_OUTPUT_QUEUES; i++)
- cvmx_pko_config_port(CVMX_PKO_MEM_QUEUE_PTRS_ILLEGAL_PID, i, 1,
- &priority);
+ /*
+ * Chip-specific setup.
+ */
+ __cvmx_pko_chip_init();
/*
* If we aren't using all of the queues optimize PKO's
@@ -212,6 +348,9 @@ cvmx_pko_status_t cvmx_pko_config_port(uint64_t port, uint64_t base_queue,
int static_priority_base = -1;
int static_priority_end = -1;
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+ return CVMX_PKO_SUCCESS;
+
if ((port >= CVMX_PKO_NUM_OUTPUT_PORTS)
&& (port != CVMX_PKO_MEM_QUEUE_PTRS_ILLEGAL_PID)) {
cvmx_dprintf("ERROR: cvmx_pko_config_port: Invalid port %llu\n",
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index d8124a3c5..0352bc8d5 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -225,13 +225,14 @@ static int next_cpu_for_irq(struct irq_data *data)
#ifdef CONFIG_SMP
int cpu;
- int weight = cpumask_weight(data->affinity);
+ struct cpumask *mask = irq_data_get_affinity_mask(data);
+ int weight = cpumask_weight(mask);
struct octeon_ciu_chip_data *cd = irq_data_get_irq_chip_data(data);
if (weight > 1) {
cpu = cd->current_cpu;
for (;;) {
- cpu = cpumask_next(cpu, data->affinity);
+ cpu = cpumask_next(cpu, mask);
if (cpu >= nr_cpu_ids) {
cpu = -1;
continue;
@@ -240,7 +241,7 @@ static int next_cpu_for_irq(struct irq_data *data)
}
}
} else if (weight == 1) {
- cpu = cpumask_first(data->affinity);
+ cpu = cpumask_first(mask);
} else {
cpu = smp_processor_id();
}
@@ -662,6 +663,11 @@ static int octeon_irq_ciu_gpio_set_type(struct irq_data *data, unsigned int t)
irqd_set_trigger_type(data, t);
octeon_irq_gpio_setup(data);
+ if (irqd_get_trigger_type(data) & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(data, handle_edge_irq);
+ else
+ irq_set_handler_locked(data, handle_level_irq);
+
return IRQ_SET_MASK_OK;
}
@@ -696,32 +702,23 @@ static void octeon_irq_ciu_gpio_ack(struct irq_data *data)
cvmx_write_csr(CVMX_GPIO_INT_CLR, mask);
}
-static void octeon_irq_handle_trigger(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_data *data = irq_desc_get_irq_data(desc);
-
- if (irqd_get_trigger_type(data) & IRQ_TYPE_EDGE_BOTH)
- handle_edge_irq(irq, desc);
- else
- handle_level_irq(irq, desc);
-}
-
#ifdef CONFIG_SMP
static void octeon_irq_cpu_offline_ciu(struct irq_data *data)
{
int cpu = smp_processor_id();
cpumask_t new_affinity;
+ struct cpumask *mask = irq_data_get_affinity_mask(data);
- if (!cpumask_test_cpu(cpu, data->affinity))
+ if (!cpumask_test_cpu(cpu, mask))
return;
- if (cpumask_weight(data->affinity) > 1) {
+ if (cpumask_weight(mask) > 1) {
/*
* It has multi CPU affinity, just remove this CPU
* from the affinity set.
*/
- cpumask_copy(&new_affinity, data->affinity);
+ cpumask_copy(&new_affinity, mask);
cpumask_clear_cpu(cpu, &new_affinity);
} else {
/* Otherwise, put it on lowest numbered online CPU. */
@@ -1227,8 +1224,13 @@ static int octeon_irq_gpio_map(struct irq_domain *d,
octeon_irq_ciu_to_irq[line][bit] != 0)
return -EINVAL;
+ /*
+ * Default to handle_level_irq. If the DT contains a different
+ * trigger type, it will call the irq_set_type callback and
+ * the handler gets updated.
+ */
r = octeon_irq_set_ciu_mapping(virq, line, bit, hw,
- octeon_irq_gpio_chip, octeon_irq_handle_trigger);
+ octeon_irq_gpio_chip, handle_level_irq);
return r;
}
@@ -2219,7 +2221,7 @@ static irqreturn_t octeon_irq_cib_handler(int my_irq, void *data)
if (irqd_get_trigger_type(irq_data) &
IRQ_TYPE_EDGE_BOTH)
cvmx_write_csr(host_data->raw_reg, 1ull << i);
- generic_handle_irq_desc(irq, desc);
+ generic_handle_irq_desc(desc);
}
}
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 89a628455..bd634259e 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -933,7 +933,7 @@ void __init plat_mem_setup(void)
while ((boot_mem_map.nr_map < BOOT_MEM_MAP_MAX)
&& (total < MAX_MEMORY)) {
memory = cvmx_bootmem_phy_alloc(mem_alloc_size,
- __pa_symbol(&__init_end), -1,
+ __pa_symbol(&_end), -1,
0x100000,
CVMX_BOOTMEM_FLAG_NO_LOCKING);
if (memory >= 0) {
diff --git a/arch/mips/configs/pistachio_defconfig b/arch/mips/configs/pistachio_defconfig
index 1646cce03..642b50946 100644
--- a/arch/mips/configs/pistachio_defconfig
+++ b/arch/mips/configs/pistachio_defconfig
@@ -320,7 +320,6 @@ CONFIG_KEYS=y
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_YAMA=y
-CONFIG_SECURITY_YAMA_STACKED=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 1f8546081..c7fe4d01e 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -16,6 +16,6 @@ generic-y += sections.h
generic-y += segment.h
generic-y += serial.h
generic-y += trace_clock.h
-generic-y += ucontext.h
generic-y += user.h
+generic-y += word-at-a-time.h
generic-y += xor.h
diff --git a/arch/mips/include/asm/abi.h b/arch/mips/include/asm/abi.h
index 7186bb51b..37f84078e 100644
--- a/arch/mips/include/asm/abi.h
+++ b/arch/mips/include/asm/abi.h
@@ -20,6 +20,10 @@ struct mips_abi {
struct pt_regs *regs, sigset_t *set);
const unsigned long rt_signal_return_offset;
const unsigned long restart;
+
+ unsigned off_sc_fpregs;
+ unsigned off_sc_fpc_csr;
+ unsigned off_sc_used_math;
};
#endif /* _ASM_ABI_H */
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 76317a702..867f924b0 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -232,6 +232,30 @@
.set pop
.endm
+ .macro ld_b wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ ld.b $w\wd, \off(\base)
+ .set pop
+ .endm
+
+ .macro ld_h wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ ld.h $w\wd, \off(\base)
+ .set pop
+ .endm
+
+ .macro ld_w wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ ld.w $w\wd, \off(\base)
+ .set pop
+ .endm
+
.macro ld_d wd, off, base
.set push
.set mips32r2
@@ -241,6 +265,30 @@
.set pop
.endm
+ .macro st_b wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ st.b $w\wd, \off(\base)
+ .set pop
+ .endm
+
+ .macro st_h wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ st.h $w\wd, \off(\base)
+ .set pop
+ .endm
+
+ .macro st_w wd, off, base
+ .set push
+ .set mips32r2
+ .set msa
+ st.w $w\wd, \off(\base)
+ .set pop
+ .endm
+
.macro st_d wd, off, base
.set push
.set mips32r2
@@ -290,7 +338,13 @@
#ifdef CONFIG_CPU_MICROMIPS
#define CFC_MSA_INSN 0x587e0056
#define CTC_MSA_INSN 0x583e0816
+#define LDB_MSA_INSN 0x58000807
+#define LDH_MSA_INSN 0x58000817
+#define LDW_MSA_INSN 0x58000827
#define LDD_MSA_INSN 0x58000837
+#define STB_MSA_INSN 0x5800080f
+#define STH_MSA_INSN 0x5800081f
+#define STW_MSA_INSN 0x5800082f
#define STD_MSA_INSN 0x5800083f
#define COPY_UW_MSA_INSN 0x58f00056
#define COPY_UD_MSA_INSN 0x58f80056
@@ -299,7 +353,13 @@
#else
#define CFC_MSA_INSN 0x787e0059
#define CTC_MSA_INSN 0x783e0819
+#define LDB_MSA_INSN 0x78000820
+#define LDH_MSA_INSN 0x78000821
+#define LDW_MSA_INSN 0x78000822
#define LDD_MSA_INSN 0x78000823
+#define STB_MSA_INSN 0x78000824
+#define STH_MSA_INSN 0x78000825
+#define STW_MSA_INSN 0x78000826
#define STD_MSA_INSN 0x78000827
#define COPY_UW_MSA_INSN 0x78f00059
#define COPY_UD_MSA_INSN 0x78f80059
@@ -329,6 +389,33 @@
.set pop
.endm
+ .macro ld_b wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word LDB_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
+ .macro ld_h wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word LDH_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
+ .macro ld_w wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word LDW_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
.macro ld_d wd, off, base
.set push
.set noat
@@ -338,6 +425,33 @@
.set pop
.endm
+ .macro st_b wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word STB_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
+ .macro st_h wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word STH_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
+ .macro st_w wd, off, base
+ .set push
+ .set noat
+ SET_HARDFLOAT
+ addu $1, \base, \off
+ .word STW_MSA_INSN | (\wd << 6)
+ .set pop
+ .endm
+
.macro st_d wd, off, base
.set push
.set noat
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 26d436336..4c42fd9af 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -137,6 +137,10 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
ATOMIC_OPS(add, +=, addu)
ATOMIC_OPS(sub, -=, subu)
+ATOMIC_OP(and, &=, and)
+ATOMIC_OP(or, |=, or)
+ATOMIC_OP(xor, ^=, xor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -416,6 +420,9 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
ATOMIC64_OPS(add, +=, daddu)
ATOMIC64_OPS(sub, -=, dsubu)
+ATOMIC64_OP(and, &=, and)
+ATOMIC64_OP(or, |=, or)
+ATOMIC64_OP(xor, ^=, xor)
#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN
diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
index 7ecba8465..752e0b86c 100644
--- a/arch/mips/include/asm/barrier.h
+++ b/arch/mips/include/asm/barrier.h
@@ -133,12 +133,12 @@
do { \
compiletime_assert_atomic_type(*p); \
smp_mb(); \
- ACCESS_ONCE(*p) = (v); \
+ WRITE_ONCE(*p, v); \
} while (0)
#define smp_load_acquire(p) \
({ \
- typeof(*p) ___p1 = ACCESS_ONCE(*p); \
+ typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
smp_mb(); \
___p1; \
diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
index 16e22ce97..c06dbf8ba 100644
--- a/arch/mips/include/asm/cdmm.h
+++ b/arch/mips/include/asm/cdmm.h
@@ -53,7 +53,7 @@ struct mips_cdmm_driver {
* mips_cdmm_phys_base() - Choose a physical base address for CDMM region.
*
* Picking a suitable physical address at which to map the CDMM region is
- * platform specific, so this weak function can be defined by platform code to
+ * platform specific, so this function can be defined by platform code to
* pick a suitable value if none is configured by the bootloader.
*
* This address must be 32kB aligned, and the region occupies a maximum of 32kB
@@ -61,7 +61,7 @@ struct mips_cdmm_driver {
*
* Returns: Physical base address for CDMM region, or 0 on failure.
*/
-phys_addr_t __weak mips_cdmm_phys_base(void);
+phys_addr_t mips_cdmm_phys_base(void);
extern struct bus_type mips_cdmm_bustype;
void __iomem *mips_cdmm_early_probe(unsigned int dev_type);
@@ -84,6 +84,17 @@ void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
mips_cdmm_driver_unregister)
+/*
+ * builtin_mips_cdmm_driver() - Helper macro for drivers that don't do anything
+ * special in init and have no exit. This eliminates some boilerplate. Each
+ * driver may only use this macro once, and calling it replaces device_initcall
+ * (or in some cases, the legacy __initcall). This is meant to be a direct
+ * parallel of module_mips_cdmm_driver() above but without the __exit stuff that
+ * is not used for builtin cases.
+ */
+#define builtin_mips_cdmm_driver(__mips_cdmm_driver) \
+ builtin_driver(__mips_cdmm_driver, mips_cdmm_driver_register)
+
/* drivers/tty/mips_ejtag_fdc.c */
#ifdef CONFIG_MIPS_EJTAG_FDC_EARLYCON
diff --git a/arch/mips/include/asm/cevt-r4k.h b/arch/mips/include/asm/cevt-r4k.h
index f0edf6fcd..2e13a038d 100644
--- a/arch/mips/include/asm/cevt-r4k.h
+++ b/arch/mips/include/asm/cevt-r4k.h
@@ -21,7 +21,6 @@ DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device);
void mips_event_handler(struct clock_event_device *dev);
int c0_compare_int_usable(void);
-void mips_set_clock_mode(enum clock_event_mode, struct clock_event_device *);
irqreturn_t c0_compare_interrupt(int, void *);
extern struct irqaction c0_compare_irqaction;
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index f25de771f..fe67f12ac 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -20,6 +20,9 @@
#ifndef cpu_has_tlb
#define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB)
#endif
+#ifndef cpu_has_ftlb
+#define cpu_has_ftlb (cpu_data[0].options & MIPS_CPU_FTLB)
+#endif
#ifndef cpu_has_tlbinv
#define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV)
#endif
@@ -411,4 +414,8 @@
# define cpu_has_cdmm (cpu_data[0].options & MIPS_CPU_CDMM)
#endif
+#ifndef cpu_has_small_pages
+# define cpu_has_small_pages (cpu_data[0].options & MIPS_CPU_SP)
+#endif
+
#endif /* __ASM_CPU_FEATURES_H */
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index d41e8e284..abee2bfd1 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -77,6 +77,10 @@ static inline int __pure __get_cpu_type(const int cpu_type)
*/
#endif
+#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R6
+ case CPU_I6400:
+#endif
+
#ifdef CONFIG_SYS_HAS_CPU_R3000
case CPU_R2000:
case CPU_R3000:
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index e46e40602..82ad15f11 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -120,6 +120,7 @@
#define PRID_IMP_PROAPTIV_MP 0xa300
#define PRID_IMP_M5150 0xa700
#define PRID_IMP_P5600 0xa800
+#define PRID_IMP_I6400 0xa900
/*
* These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -307,6 +308,7 @@ enum cpu_type_enum {
CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K, CPU_M5150,
+ CPU_I6400,
/*
* MIPS64 class processors
@@ -382,6 +384,8 @@ enum cpu_type_enum {
#define MIPS_CPU_XPA 0x2000000000ull /* CPU supports Extended Physical Addressing */
#define MIPS_CPU_CDMM 0x4000000000ull /* CPU has Common Device Memory Map */
#define MIPS_CPU_BP_GHIST 0x8000000000ull /* R12K+ Branch Prediction Global History */
+#define MIPS_CPU_SP 0x10000000000ull /* Small (1KB) page support */
+#define MIPS_CPU_FTLB 0x20000000000ull /* CPU has Fixed-page-size TLB */
/*
* CPU ASE encodings
diff --git a/arch/mips/include/asm/debug.h b/arch/mips/include/asm/debug.h
deleted file mode 100644
index 1fd5a2b39..000000000
--- a/arch/mips/include/asm/debug.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Debug macros for run-time debugging.
- * Turned on/off with CONFIG_RUNTIME_DEBUG option.
- *
- * Copyright (C) 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef _ASM_DEBUG_H
-#define _ASM_DEBUG_H
-
-
-/*
- * run-time macros for catching spurious errors. Eable CONFIG_RUNTIME_DEBUG in
- * kernel hacking config menu to use them.
- *
- * Use them as run-time debugging aid. NEVER USE THEM AS ERROR HANDLING CODE!!!
- */
-
-#ifdef CONFIG_RUNTIME_DEBUG
-
-#include <linux/kernel.h>
-
-#define db_assert(x) if (!(x)) { \
- panic("assertion failed at %s:%d: %s", __FILE__, __LINE__, #x); }
-#define db_warn(x) if (!(x)) { \
- printk(KERN_WARNING "warning at %s:%d: %s", __FILE__, __LINE__, #x); }
-#define db_verify(x, y) db_assert(x y)
-#define db_verify_warn(x, y) db_warn(x y)
-#define db_run(x) do { x; } while (0)
-
-#else
-
-#define db_assert(x)
-#define db_warn(x)
-#define db_verify(x, y) x
-#define db_verify_warn(x, y) x
-#define db_run(x)
-
-#endif
-
-#endif /* _ASM_DEBUG_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 360b33871..e604f760c 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -4,7 +4,6 @@
#include <linux/scatterlist.h>
#include <asm/dma-coherence.h>
#include <asm/cache.h>
-#include <asm-generic/dma-coherent.h>
#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
#include <dma-coherence.h>
@@ -32,73 +31,7 @@ static inline void dma_mark_clean(void *addr, size_t size) {}
#include <asm-generic/dma-mapping-common.h>
-static inline int dma_supported(struct device *dev, u64 mask)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
- return ops->dma_supported(dev, mask);
-}
-
-static inline int dma_mapping_error(struct device *dev, u64 mask)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- debug_dma_mapping_error(dev, mask);
- return ops->mapping_error(dev, mask);
-}
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- if(!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- if (ops->set_dma_mask)
- return ops->set_dma_mask(dev, mask);
-
- *dev->dma_mask = mask;
-
- return 0;
-}
-
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
-#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp,
- struct dma_attrs *attrs)
-{
- void *ret;
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- ret = ops->alloc(dev, size, dma_handle, gfp, attrs);
-
- debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
-
- return ret;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle,
- struct dma_attrs *attrs)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- ops->free(dev, size, vaddr, dma_handle, attrs);
-
- debug_dma_free_coherent(dev, size, vaddr, dma_handle);
-}
-
-
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag);
-
-void dma_free_noncoherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
-
#endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index f19e890b9..53b26933b 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -382,7 +382,9 @@ do { \
instruction set this cpu supports. This could be done in userspace,
but it's not easy, and we've already done it here. */
-#define ELF_HWCAP (0)
+#define ELF_HWCAP (elf_hwcap)
+extern unsigned int elf_hwcap;
+#include <asm/hwcap.h>
/*
* This yields a string that ld.so will use to load implementation
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 1b0625189..9cbf383b8 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -164,25 +164,30 @@ static inline int own_fpu(int restore)
return ret;
}
-static inline void lose_fpu(int save)
+static inline void lose_fpu_inatomic(int save, struct task_struct *tsk)
{
- preempt_disable();
if (is_msa_enabled()) {
if (save) {
- save_msa(current);
- current->thread.fpu.fcr31 =
+ save_msa(tsk);
+ tsk->thread.fpu.fcr31 =
read_32bit_cp1_register(CP1_STATUS);
}
disable_msa();
- clear_thread_flag(TIF_USEDMSA);
+ clear_tsk_thread_flag(tsk, TIF_USEDMSA);
__disable_fpu();
} else if (is_fpu_owner()) {
if (save)
- _save_fp(current);
+ _save_fp(tsk);
__disable_fpu();
}
- KSTK_STATUS(current) &= ~ST0_CU1;
- clear_thread_flag(TIF_USEDFPU);
+ KSTK_STATUS(tsk) &= ~ST0_CU1;
+ clear_tsk_thread_flag(tsk, TIF_USEDFPU);
+}
+
+static inline void lose_fpu(int save)
+{
+ preempt_disable();
+ lose_fpu_inatomic(save, current);
preempt_enable();
}
diff --git a/arch/mips/include/asm/gpio.h b/arch/mips/include/asm/gpio.h
deleted file mode 100644
index 06e46faf8..000000000
--- a/arch/mips/include/asm/gpio.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_MIPS_GPIO_H
-#define __ASM_MIPS_GPIO_H
-
-#include <gpio.h>
-
-#endif /* __ASM_MIPS_GPIO_H */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 9e777cd42..d10fd80db 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -256,6 +256,7 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
*/
#define ioremap_nocache(offset, size) \
__ioremap_mode((offset), (size), _CACHE_UNCACHED)
+#define ioremap_uc ioremap_nocache
/*
* ioremap_cachable - map bus memory into CPU space
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index f0db99f8d..15e0fecbc 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -49,7 +49,7 @@ extern int cp0_compare_irq_shift;
extern int cp0_perfcount_irq;
extern int cp0_fdc_irq;
-extern int __weak get_c0_fdc_int(void);
+extern int get_c0_fdc_int(void);
void arch_trigger_all_cpu_backtrace(bool);
#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h
index 608aa5779..e77672539 100644
--- a/arch/mips/include/asm/jump_label.h
+++ b/arch/mips/include/asm/jump_label.h
@@ -26,14 +26,29 @@
#define NOP_INSN "nop"
#endif
-static __always_inline bool arch_static_branch(struct static_key *key)
+static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
asm_volatile_goto("1:\t" NOP_INSN "\n\t"
"nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
WORD_INSN " 1b, %l[l_yes], %0\n\t"
".popsection\n\t"
- : : "i" (key) : : l_yes);
+ : : "i" (&((char *)key)[branch]) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
+{
+ asm_volatile_goto("1:\tj %l[l_yes]\n\t"
+ "nop\n\t"
+ ".pushsection __jump_table, \"aw\"\n\t"
+ WORD_INSN " 1b, %l[l_yes], %0\n\t"
+ ".popsection\n\t"
+ : : "i" (&((char *)key)[branch]) : : l_yes);
+
return false;
l_yes:
return true;
diff --git a/arch/mips/include/asm/kdebug.h b/arch/mips/include/asm/kdebug.h
index cba22ab7a..8e3d08e73 100644
--- a/arch/mips/include/asm/kdebug.h
+++ b/arch/mips/include/asm/kdebug.h
@@ -11,7 +11,9 @@ enum die_val {
DIE_PAGE_FAULT,
DIE_BREAK,
DIE_SSTEPBP,
- DIE_MSAFP
+ DIE_MSAFP,
+ DIE_UPROBE,
+ DIE_UPROBE_XOL,
};
#endif /* _ASM_MIPS_KDEBUG_H */
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index e8c8d9d0c..5a1a882e0 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -61,6 +61,7 @@
#define KVM_PRIVATE_MEM_SLOTS 0
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
+#define KVM_HALT_POLL_NS_DEFAULT 500000
@@ -128,6 +129,7 @@ struct kvm_vcpu_stat {
u32 msa_disabled_exits;
u32 flush_dcache_exits;
u32 halt_successful_poll;
+ u32 halt_attempted_poll;
u32 halt_wakeup;
};
diff --git a/arch/mips/include/asm/linkage.h b/arch/mips/include/asm/linkage.h
index 2767dda9e..99651b0ea 100644
--- a/arch/mips/include/asm/linkage.h
+++ b/arch/mips/include/asm/linkage.h
@@ -5,7 +5,6 @@
#include <asm/asm.h>
#endif
-#define __weak __attribute__((weak))
#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall")
#define SYSCALL_ALIAS(alias, name) \
asm ( #alias " = " #name "\n\t.globl " #alias)
diff --git a/arch/mips/include/asm/maar.h b/arch/mips/include/asm/maar.h
index 6c62b0f89..21d9607c8 100644
--- a/arch/mips/include/asm/maar.h
+++ b/arch/mips/include/asm/maar.h
@@ -26,7 +26,7 @@
*
* Return: The number of MAAR pairs configured.
*/
-unsigned __weak platform_maar_init(unsigned num_pairs);
+unsigned platform_maar_init(unsigned num_pairs);
/**
* write_maar_pair() - write to a pair of MAARs
@@ -66,6 +66,15 @@ static inline void write_maar_pair(unsigned idx, phys_addr_t lower,
}
/**
+ * maar_init() - initialise MAARs
+ *
+ * Performs initialisation of MAARs for the current CPU, making use of the
+ * platforms implementation of platform_maar_init where necessary and
+ * duplicating the setup it provides on secondary CPUs.
+ */
+extern void maar_init(void);
+
+/**
* struct maar_config - MAAR configuration data
* @lower: The lowest address that the MAAR pair will affect. Must be
* aligned to a 2^16 byte boundary.
diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h
index a47ea0c85..468cbd61b 100644
--- a/arch/mips/include/asm/mach-ar7/ar7.h
+++ b/arch/mips/include/asm/mach-ar7/ar7.h
@@ -203,4 +203,8 @@ static inline void ar7_device_off(u32 bit)
int __init ar7_gpio_init(void);
void __init ar7_init_clocks(void);
+/* Board specific GPIO functions */
+int ar7_gpio_enable(unsigned gpio);
+int ar7_gpio_disable(unsigned gpio);
+
#endif /* __AR7_H__ */
diff --git a/arch/mips/include/asm/mach-ar7/gpio.h b/arch/mips/include/asm/mach-ar7/gpio.h
deleted file mode 100644
index c177cd1ee..000000000
--- a/arch/mips/include/asm/mach-ar7/gpio.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2007-2009 Florian Fainelli <florian@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef __AR7_GPIO_H__
-#define __AR7_GPIO_H__
-
-#include <asm/mach-ar7/ar7.h>
-
-#define AR7_GPIO_MAX 32
-#define TITAN_GPIO_MAX 51
-#define NR_BUILTIN_GPIO TITAN_GPIO_MAX
-
-#define gpio_to_irq(gpio) -1
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-
-#define gpio_cansleep __gpio_cansleep
-
-/* Board specific GPIO functions */
-int ar7_gpio_enable(unsigned gpio);
-int ar7_gpio_disable(unsigned gpio);
-
-#include <asm-generic/gpio.h>
-
-#endif
diff --git a/arch/mips/include/asm/mach-ath25/gpio.h b/arch/mips/include/asm/mach-ath25/gpio.h
deleted file mode 100644
index 713564b8e..000000000
--- a/arch/mips/include/asm/mach-ath25/gpio.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __ASM_MACH_ATH25_GPIO_H
-#define __ASM_MACH_ATH25_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-#define gpio_to_irq __gpio_to_irq
-
-static inline int irq_to_gpio(unsigned irq)
-{
- return -EINVAL;
-}
-
-#endif /* __ASM_MACH_ATH25_GPIO_H */
diff --git a/arch/mips/include/asm/mach-ath79/gpio.h b/arch/mips/include/asm/mach-ath79/gpio.h
deleted file mode 100644
index 60dcb6278..000000000
--- a/arch/mips/include/asm/mach-ath79/gpio.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Atheros AR71XX/AR724X/AR913X GPIO API definitions
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- */
-
-#ifndef __ASM_MACH_ATH79_GPIO_H
-#define __ASM_MACH_ATH79_GPIO_H
-
-#define ARCH_NR_GPIOS 64
-#include <asm-generic/gpio.h>
-
-int gpio_to_irq(unsigned gpio);
-int irq_to_gpio(unsigned irq);
-int gpio_get_value(unsigned gpio);
-void gpio_set_value(unsigned gpio, int value);
-
-#define gpio_cansleep __gpio_cansleep
-
-#endif /* __ASM_MACH_ATH79_GPIO_H */
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
index 9785e4ebb..adde1fa50 100644
--- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
@@ -266,6 +266,17 @@ static inline int alchemy_gpio1_to_irq(int gpio)
return -ENXIO;
}
+/* On Au1000, Au1500 and Au1100 GPIOs won't work as inputs before
+ * SYS_PININPUTEN is written to at least once. On Au1550/Au1200/Au1300 this
+ * register enables use of GPIOs as wake source.
+ */
+static inline void alchemy_gpio1_input_enable(void)
+{
+ void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR);
+ __raw_writel(0, base + 0x110); /* the write op is key */
+ wmb();
+}
+
/*
* GPIO2 block macros for common linux GPIO functions. The 'gpio'
* parameter must be in range of ALCHEMY_GPIO2_BASE..ALCHEMY_GPIO2_MAX.
@@ -518,141 +529,4 @@ static inline int alchemy_irq_to_gpio(int irq)
return -ENXIO;
}
-/**********************************************************************/
-
-/* Linux gpio framework integration.
- *
- * 4 use cases of Au1000-Au1200 GPIOS:
- *(1) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=y:
- * Board must register gpiochips.
- *(2) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=n:
- * 2 (1 for Au1000) gpio_chips are registered.
- *
- *(3) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=y:
- * the boards' gpio.h must provide the linux gpio wrapper functions,
- *
- *(4) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=n:
- * inlinable gpio functions are provided which enable access to the
- * Au1000 gpios only by using the numbers straight out of the data-
- * sheets.
-
- * Cases 1 and 3 are intended for boards which want to provide their own
- * GPIO namespace and -operations (i.e. for example you have 8 GPIOs
- * which are in part provided by spare Au1000 GPIO pins and in part by
- * an external FPGA but you still want them to be accssible in linux
- * as gpio0-7. The board can of course use the alchemy_gpioX_* functions
- * as required).
- */
-
-#ifndef CONFIG_GPIOLIB
-
-#ifdef CONFIG_ALCHEMY_GPIOINT_AU1000
-
-#ifndef CONFIG_ALCHEMY_GPIO_INDIRECT /* case (4) */
-
-static inline int gpio_direction_input(int gpio)
-{
- return alchemy_gpio_direction_input(gpio);
-}
-
-static inline int gpio_direction_output(int gpio, int v)
-{
- return alchemy_gpio_direction_output(gpio, v);
-}
-
-static inline int gpio_get_value(int gpio)
-{
- return alchemy_gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(int gpio, int v)
-{
- alchemy_gpio_set_value(gpio, v);
-}
-
-static inline int gpio_get_value_cansleep(unsigned gpio)
-{
- return gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value_cansleep(unsigned gpio, int value)
-{
- gpio_set_value(gpio, value);
-}
-
-static inline int gpio_is_valid(int gpio)
-{
- return alchemy_gpio_is_valid(gpio);
-}
-
-static inline int gpio_cansleep(int gpio)
-{
- return alchemy_gpio_cansleep(gpio);
-}
-
-static inline int gpio_to_irq(int gpio)
-{
- return alchemy_gpio_to_irq(gpio);
-}
-
-static inline int irq_to_gpio(int irq)
-{
- return alchemy_irq_to_gpio(irq);
-}
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
- return 0;
-}
-
-static inline int gpio_request_one(unsigned gpio,
- unsigned long flags, const char *label)
-{
- return 0;
-}
-
-static inline int gpio_request_array(struct gpio *array, size_t num)
-{
- return 0;
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-}
-
-static inline void gpio_free_array(struct gpio *array, size_t num)
-{
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_export(unsigned gpio, bool direction_may_change)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_export_link(struct device *dev, const char *name,
- unsigned gpio)
-{
- return -ENOSYS;
-}
-
-static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
-{
- return -ENOSYS;
-}
-
-static inline void gpio_unexport(unsigned gpio)
-{
-}
-
-#endif /* !CONFIG_ALCHEMY_GPIO_INDIRECT */
-
-#endif /* CONFIG_ALCHEMY_GPIOINT_AU1000 */
-
-#endif /* !CONFIG_GPIOLIB */
-
#endif /* _ALCHEMY_GPIO_AU1000_H_ */
diff --git a/arch/mips/include/asm/mach-au1x00/gpio.h b/arch/mips/include/asm/mach-au1x00/gpio.h
deleted file mode 100644
index 22e7ff17f..000000000
--- a/arch/mips/include/asm/mach-au1x00/gpio.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Alchemy GPIO support.
- *
- * With CONFIG_GPIOLIB=y different types of on-chip GPIO can be supported within
- * the same kernel image.
- * With CONFIG_GPIOLIB=n, your board must select ALCHEMY_GPIOINT_AU1XXX for the
- * appropriate CPU type (AU1000 currently).
- */
-
-#ifndef _ALCHEMY_GPIO_H_
-#define _ALCHEMY_GPIO_H_
-
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-au1x00/gpio-au1000.h>
-#include <asm/mach-au1x00/gpio-au1300.h>
-
-/* On Au1000, Au1500 and Au1100 GPIOs won't work as inputs before
- * SYS_PININPUTEN is written to at least once. On Au1550/Au1200/Au1300 this
- * register enables use of GPIOs as wake source.
- */
-static inline void alchemy_gpio1_input_enable(void)
-{
- void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR);
- __raw_writel(0, base + 0x110); /* the write op is key */
- wmb();
-}
-
-
-/* Linux gpio framework integration.
-*
-* 4 use cases of Alchemy GPIOS:
-*(1) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=y:
-* Board must register gpiochips.
-*(2) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=n:
-* A gpiochip for the 75 GPIOs is registered.
-*
-*(3) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=y:
-* the boards' gpio.h must provide the linux gpio wrapper functions,
-*
-*(4) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=n:
-* inlinable gpio functions are provided which enable access to the
-* Au1300 gpios only by using the numbers straight out of the data-
-* sheets.
-
-* Cases 1 and 3 are intended for boards which want to provide their own
-* GPIO namespace and -operations (i.e. for example you have 8 GPIOs
-* which are in part provided by spare Au1300 GPIO pins and in part by
-* an external FPGA but you still want them to be accssible in linux
-* as gpio0-7. The board can of course use the alchemy_gpioX_* functions
-* as required).
-*/
-
-#ifdef CONFIG_GPIOLIB
-
-/* wraps the cpu-dependent irq_to_gpio functions */
-/* FIXME: gpiolib needs an irq_to_gpio hook */
-static inline int __au_irq_to_gpio(unsigned int irq)
-{
- switch (alchemy_get_cputype()) {
- case ALCHEMY_CPU_AU1000...ALCHEMY_CPU_AU1200:
- return alchemy_irq_to_gpio(irq);
- case ALCHEMY_CPU_AU1300:
- return au1300_irq_to_gpio(irq);
- }
- return -EINVAL;
-}
-
-
-/* using gpiolib to provide up to 2 gpio_chips for on-chip gpios */
-#ifndef CONFIG_ALCHEMY_GPIO_INDIRECT /* case (2) */
-
-/* get everything through gpiolib */
-#define gpio_to_irq __gpio_to_irq
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-#define irq_to_gpio __au_irq_to_gpio
-
-#include <asm-generic/gpio.h>
-
-#endif /* !CONFIG_ALCHEMY_GPIO_INDIRECT */
-
-
-#endif /* CONFIG_GPIOLIB */
-
-#endif /* _ALCHEMY_GPIO_H_ */
diff --git a/arch/mips/include/asm/mach-bcm47xx/gpio.h b/arch/mips/include/asm/mach-bcm47xx/gpio.h
deleted file mode 100644
index 90daefa24..000000000
--- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __ASM_MIPS_MACH_BCM47XX_GPIO_H
-#define __ASM_MIPS_MACH_BCM47XX_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-
-#define gpio_cansleep __gpio_cansleep
-#define gpio_to_irq __gpio_to_irq
-
-static inline int irq_to_gpio(unsigned int irq)
-{
- return -EINVAL;
-}
-
-#endif
diff --git a/arch/mips/include/asm/mach-bcm63xx/gpio.h b/arch/mips/include/asm/mach-bcm63xx/gpio.h
deleted file mode 100644
index 1eb534de8..000000000
--- a/arch/mips/include/asm/mach-bcm63xx/gpio.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __ASM_MIPS_MACH_BCM63XX_GPIO_H
-#define __ASM_MIPS_MACH_BCM63XX_GPIO_H
-
-#include <bcm63xx_gpio.h>
-
-#define gpio_to_irq(gpio) -1
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-
-#define gpio_cansleep __gpio_cansleep
-
-#include <asm-generic/gpio.h>
-
-#endif /* __ASM_MIPS_MACH_BCM63XX_GPIO_H */
diff --git a/arch/mips/include/asm/mach-cavium-octeon/gpio.h b/arch/mips/include/asm/mach-cavium-octeon/gpio.h
deleted file mode 100644
index 34e9f7aab..000000000
--- a/arch/mips/include/asm/mach-cavium-octeon/gpio.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __ASM_MACH_CAVIUM_OCTEON_GPIO_H
-#define __ASM_MACH_CAVIUM_OCTEON_GPIO_H
-
-#ifdef CONFIG_GPIOLIB
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-#else
-int gpio_request(unsigned gpio, const char *label);
-void gpio_free(unsigned gpio);
-int gpio_direction_input(unsigned gpio);
-int gpio_direction_output(unsigned gpio, int value);
-int gpio_get_value(unsigned gpio);
-void gpio_set_value(unsigned gpio, int value);
-#endif
-
-#include <asm-generic/gpio.h>
-
-#define gpio_to_irq __gpio_to_irq
-
-#endif /* __ASM_MACH_GENERIC_GPIO_H */
diff --git a/arch/mips/include/asm/mach-generic/gpio.h b/arch/mips/include/asm/mach-generic/gpio.h
deleted file mode 100644
index b4e70208d..000000000
--- a/arch/mips/include/asm/mach-generic/gpio.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __ASM_MACH_GENERIC_GPIO_H
-#define __ASM_MACH_GENERIC_GPIO_H
-
-#ifdef CONFIG_GPIOLIB
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-#else
-int gpio_request(unsigned gpio, const char *label);
-void gpio_free(unsigned gpio);
-int gpio_direction_input(unsigned gpio);
-int gpio_direction_output(unsigned gpio, int value);
-int gpio_get_value(unsigned gpio);
-void gpio_set_value(unsigned gpio, int value);
-#endif
-int gpio_to_irq(unsigned gpio);
-int irq_to_gpio(unsigned irq);
-
-#include <asm-generic/gpio.h> /* cansleep wrappers */
-
-#endif /* __ASM_MACH_GENERIC_GPIO_H */
diff --git a/arch/mips/include/asm/mach-jz4740/gpio.h b/arch/mips/include/asm/mach-jz4740/gpio.h
index eaacba79c..bf8c3e186 100644
--- a/arch/mips/include/asm/mach-jz4740/gpio.h
+++ b/arch/mips/include/asm/mach-jz4740/gpio.h
@@ -73,8 +73,6 @@ int jz_gpio_port_direction_output(int port, uint32_t mask);
void jz_gpio_port_set_value(int port, uint32_t value, uint32_t mask);
uint32_t jz_gpio_port_get_value(int port, uint32_t mask);
-#include <asm/mach-generic/gpio.h>
-
#define JZ_GPIO_PORTA(x) ((x) + 32 * 0)
#define JZ_GPIO_PORTB(x) ((x) + 32 * 1)
#define JZ_GPIO_PORTC(x) ((x) + 32 * 2)
diff --git a/arch/mips/include/asm/mach-lantiq/gpio.h b/arch/mips/include/asm/mach-lantiq/gpio.h
deleted file mode 100644
index 9ba1caebc..000000000
--- a/arch/mips/include/asm/mach-lantiq/gpio.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __ASM_MIPS_MACH_LANTIQ_GPIO_H
-#define __ASM_MIPS_MACH_LANTIQ_GPIO_H
-
-#define gpio_to_irq __gpio_to_irq
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-
-#define gpio_cansleep __gpio_cansleep
-
-#include <asm-generic/gpio.h>
-
-#endif
diff --git a/arch/mips/include/asm/mach-loongson64/gpio.h b/arch/mips/include/asm/mach-loongson64/gpio.h
deleted file mode 100644
index b3b216904..000000000
--- a/arch/mips/include/asm/mach-loongson64/gpio.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Loongson GPIO Support
- *
- * Copyright (c) 2008 Richard Liu, STMicroelectronics <richard.liu@st.com>
- * Copyright (c) 2008-2010 Arnaud Patard <apatard@mandriva.com>
- * Copyright (c) 2014 Huacai Chen <chenhc@lemote.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __LOONGSON_GPIO_H
-#define __LOONGSON_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-
-/* The chip can do interrupt
- * but it has not been tested and doc not clear
- */
-static inline int gpio_to_irq(int gpio)
-{
- return -EINVAL;
-}
-
-static inline int irq_to_gpio(int gpio)
-{
- return -EINVAL;
-}
-
-#endif /* __LOONGSON_GPIO_H */
diff --git a/arch/mips/include/asm/mach-pistachio/gpio.h b/arch/mips/include/asm/mach-pistachio/gpio.h
deleted file mode 100644
index 6c1649c27..000000000
--- a/arch/mips/include/asm/mach-pistachio/gpio.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Pistachio IRQ setup
- *
- * Copyright (C) 2014 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- */
-
-#ifndef __ASM_MACH_PISTACHIO_GPIO_H
-#define __ASM_MACH_PISTACHIO_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-#define gpio_to_irq __gpio_to_irq
-
-#endif /* __ASM_MACH_PISTACHIO_GPIO_H */
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index 4dee0a342..db211212c 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -13,18 +13,6 @@
#ifndef _RC32434_GPIO_H_
#define _RC32434_GPIO_H_
-#include <linux/types.h>
-#include <asm-generic/gpio.h>
-
-#define NR_BUILTIN_GPIO 32
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-#define gpio_cansleep __gpio_cansleep
-
-#define gpio_to_irq(gpio) (8 + 4 * 32 + gpio)
-#define irq_to_gpio(irq) (irq - (8 + 4 * 32))
-
struct rb532_gpio_reg {
u32 gpiofunc; /* GPIO Function Register
* gpiofunc[x]==0 bit = gpio
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index edc7ee952..1f1927ab4 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -33,6 +33,29 @@ extern void __iomem *mips_cm_l2sync_base;
*/
extern phys_addr_t __mips_cm_phys_base(void);
+/*
+ * mips_cm_is64 - determine CM register width
+ *
+ * The CM register width is processor and CM specific. A 64-bit processor
+ * usually has a 64-bit CM and a 32-bit one has a 32-bit CM but a 64-bit
+ * processor could come with a 32-bit CM. Moreover, accesses on 64-bit CMs
+ * can be done either using regular 64-bit load/store instructions, or 32-bit
+ * load/store instruction on 32-bit register pairs. We opt for using 64-bit
+ * accesses on 64-bit CMs and kernels and 32-bit in any other case.
+ *
+ * It's set to 0 for 32-bit accesses and 1 for 64-bit accesses.
+ */
+extern int mips_cm_is64;
+
+/**
+ * mips_cm_error_report - Report CM cache errors
+ */
+#ifdef CONFIG_MIPS_CM
+extern void mips_cm_error_report(void);
+#else
+static inline void mips_cm_error_report(void) {}
+#endif
+
/**
* mips_cm_probe - probe for a Coherence Manager
*
@@ -90,20 +113,46 @@ static inline bool mips_cm_has_l2sync(void)
/* Macros to ease the creation of register access functions */
#define BUILD_CM_R_(name, off) \
-static inline u32 __iomem *addr_gcr_##name(void) \
+static inline unsigned long __iomem *addr_gcr_##name(void) \
{ \
- return (u32 __iomem *)(mips_cm_base + (off)); \
+ return (unsigned long __iomem *)(mips_cm_base + (off)); \
} \
\
-static inline u32 read_gcr_##name(void) \
+static inline u32 read32_gcr_##name(void) \
{ \
return __raw_readl(addr_gcr_##name()); \
+} \
+ \
+static inline u64 read64_gcr_##name(void) \
+{ \
+ return __raw_readq(addr_gcr_##name()); \
+} \
+ \
+static inline unsigned long read_gcr_##name(void) \
+{ \
+ if (mips_cm_is64) \
+ return read64_gcr_##name(); \
+ else \
+ return read32_gcr_##name(); \
}
#define BUILD_CM__W(name, off) \
-static inline void write_gcr_##name(u32 value) \
+static inline void write32_gcr_##name(u32 value) \
{ \
__raw_writel(value, addr_gcr_##name()); \
+} \
+ \
+static inline void write64_gcr_##name(u64 value) \
+{ \
+ __raw_writeq(value, addr_gcr_##name()); \
+} \
+ \
+static inline void write_gcr_##name(unsigned long value) \
+{ \
+ if (mips_cm_is64) \
+ write64_gcr_##name(value); \
+ else \
+ write32_gcr_##name(value); \
}
#define BUILD_CM_RW(name, off) \
@@ -144,6 +193,8 @@ BUILD_CM_RW(reg3_base, MIPS_CM_GCB_OFS + 0xc0)
BUILD_CM_RW(reg3_mask, MIPS_CM_GCB_OFS + 0xc8)
BUILD_CM_R_(gic_status, MIPS_CM_GCB_OFS + 0xd0)
BUILD_CM_R_(cpc_status, MIPS_CM_GCB_OFS + 0xf0)
+BUILD_CM_RW(l2_config, MIPS_CM_GCB_OFS + 0x130)
+BUILD_CM_RW(sys_config2, MIPS_CM_GCB_OFS + 0x150)
/* Core Local & Core Other register accessor functions */
BUILD_CM_Cx_RW(reset_release, 0x00)
@@ -189,6 +240,13 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_REV_MINOR_SHF 0
#define CM_GCR_REV_MINOR_MSK (_ULCAST_(0xff) << 0)
+#define CM_ENCODE_REV(major, minor) \
+ (((major) << CM_GCR_REV_MAJOR_SHF) | \
+ ((minor) << CM_GCR_REV_MINOR_SHF))
+
+#define CM_REV_CM2 CM_ENCODE_REV(6, 0)
+#define CM_REV_CM3 CM_ENCODE_REV(8, 0)
+
/* GCR_ERROR_CAUSE register fields */
#define CM_GCR_ERROR_CAUSE_ERRTYPE_SHF 27
#define CM_GCR_ERROR_CAUSE_ERRTYPE_MSK (_ULCAST_(0x1f) << 27)
@@ -249,6 +307,20 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_CPC_STATUS_EX_SHF 0
#define CM_GCR_CPC_STATUS_EX_MSK (_ULCAST_(0x1) << 0)
+/* GCR_L2_CONFIG register fields */
+#define CM_GCR_L2_CONFIG_BYPASS_SHF 20
+#define CM_GCR_L2_CONFIG_BYPASS_MSK (_ULCAST_(0x1) << 20)
+#define CM_GCR_L2_CONFIG_SET_SIZE_SHF 12
+#define CM_GCR_L2_CONFIG_SET_SIZE_MSK (_ULCAST_(0xf) << 12)
+#define CM_GCR_L2_CONFIG_LINE_SIZE_SHF 8
+#define CM_GCR_L2_CONFIG_LINE_SIZE_MSK (_ULCAST_(0xf) << 8)
+#define CM_GCR_L2_CONFIG_ASSOC_SHF 0
+#define CM_GCR_L2_CONFIG_ASSOC_MSK (_ULCAST_(0xff) << 0)
+
+/* GCR_SYS_CONFIG2 register fields */
+#define CM_GCR_SYS_CONFIG2_MAXVPW_SHF 0
+#define CM_GCR_SYS_CONFIG2_MAXVPW_MSK (_ULCAST_(0xf) << 0)
+
/* GCR_Cx_COHERENCE register fields */
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_SHF 0
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK (_ULCAST_(0xff) << 0)
@@ -324,4 +396,52 @@ static inline int mips_cm_l2sync(void)
return 0;
}
+/**
+ * mips_cm_revision() - return CM revision
+ *
+ * Return: The revision of the CM, from GCR_REV, or 0 if no CM is present. The
+ * return value should be checked against the CM_REV_* macros.
+ */
+static inline int mips_cm_revision(void)
+{
+ if (!mips_cm_present())
+ return 0;
+
+ return read_gcr_rev();
+}
+
+/**
+ * mips_cm_max_vp_width() - return the width in bits of VP indices
+ *
+ * Return: the width, in bits, of VP indices in fields that combine core & VP
+ * indices.
+ */
+static inline unsigned int mips_cm_max_vp_width(void)
+{
+ extern int smp_num_siblings;
+
+ if (mips_cm_revision() >= CM_REV_CM3)
+ return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW_MSK;
+
+ return smp_num_siblings;
+}
+
+/**
+ * mips_cm_vp_id() - calculate the hardware VP ID for a CPU
+ * @cpu: the CPU whose VP ID to calculate
+ *
+ * Hardware such as the GIC uses identifiers for VPs which may not match the
+ * CPU numbers used by Linux. This function calculates the hardware VP
+ * identifier corresponding to a given CPU.
+ *
+ * Return: the VP ID for the CPU.
+ */
+static inline unsigned int mips_cm_vp_id(unsigned int cpu)
+{
+ unsigned int core = cpu_data[cpu].core;
+ unsigned int vp = cpu_vpe_id(&cpu_data[cpu]);
+
+ return (core * mips_cm_max_vp_width()) + vp;
+}
+
#endif /* __MIPS_ASM_MIPS_CM_H__ */
diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h
index 1cebe8c79..f386f3270 100644
--- a/arch/mips/include/asm/mips-cpc.h
+++ b/arch/mips/include/asm/mips-cpc.h
@@ -28,16 +28,6 @@ extern void __iomem *mips_cpc_base;
extern phys_addr_t mips_cpc_default_phys_base(void);
/**
- * mips_cpc_phys_base - retrieve the physical base address of the CPC
- *
- * This function returns the physical base address of the Cluster Power
- * Controller memory mapped registers, or 0 if no Cluster Power Controller
- * is present. It may be overriden by individual platforms which determine
- * this address in a different way.
- */
-extern phys_addr_t __weak mips_cpc_phys_base(void);
-
-/**
* mips_cpc_probe - probe for a Cluster Power Controller
*
* Attempt to detect the presence of a Cluster Power Controller. Returns 0 if
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index c5b0956a8..c64781cf6 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -112,6 +112,30 @@
#define CP0_TX39_CACHE $7
+/* Generic EntryLo bit definitions */
+#define ENTRYLO_G (_ULCAST_(1) << 0)
+#define ENTRYLO_V (_ULCAST_(1) << 1)
+#define ENTRYLO_D (_ULCAST_(1) << 2)
+#define ENTRYLO_C_SHIFT 3
+#define ENTRYLO_C (_ULCAST_(7) << ENTRYLO_C_SHIFT)
+
+/* R3000 EntryLo bit definitions */
+#define R3K_ENTRYLO_G (_ULCAST_(1) << 8)
+#define R3K_ENTRYLO_V (_ULCAST_(1) << 9)
+#define R3K_ENTRYLO_D (_ULCAST_(1) << 10)
+#define R3K_ENTRYLO_N (_ULCAST_(1) << 11)
+
+/* MIPS32/64 EntryLo bit definitions */
+#ifdef CONFIG_64BIT
+/* as read by dmfc0 */
+#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 62)
+#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 63)
+#else
+/* as read by mfc0 */
+#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 30)
+#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 31)
+#endif
+
/*
* Values for PageMask register
*/
@@ -203,6 +227,9 @@
#define PG_ESP (_ULCAST_(1) << 28)
#define PG_IEC (_ULCAST_(1) << 27)
+/* MIPS32/64 EntryHI bit definitions */
+#define MIPS_ENTRYHI_EHINV (_ULCAST_(1) << 10)
+
/*
* R4x00 interrupt enable / cause bits
*/
@@ -460,6 +487,8 @@
/* Bits specific to the MIPS32/64 PRA. */
#define MIPS_CONF_MT (_ULCAST_(7) << 7)
+#define MIPS_CONF_MT_TLB (_ULCAST_(1) << 7)
+#define MIPS_CONF_MT_FTLB (_ULCAST_(4) << 7)
#define MIPS_CONF_AR (_ULCAST_(7) << 10)
#define MIPS_CONF_AT (_ULCAST_(3) << 13)
#define MIPS_CONF_M (_ULCAST_(1) << 31)
@@ -579,6 +608,8 @@
#define MIPS_CONF7_IAR (_ULCAST_(1) << 10)
#define MIPS_CONF7_AR (_ULCAST_(1) << 16)
+/* FTLB probability bits for R6 */
+#define MIPS_CONF7_FTLBP_SHIFT (18)
/* MAAR bit definitions */
#define MIPS_MAAR_ADDR ((BIT_ULL(BITS_PER_LONG - 12) - 1) << 12)
@@ -586,31 +617,6 @@
#define MIPS_MAAR_S (_ULCAST_(1) << 1)
#define MIPS_MAAR_V (_ULCAST_(1) << 0)
-/* EntryHI bit definition */
-#define MIPS_ENTRYHI_EHINV (_ULCAST_(1) << 10)
-
-/* R3000 EntryLo bit definitions */
-#define R3K_ENTRYLO_G (_ULCAST_(1) << 8)
-#define R3K_ENTRYLO_V (_ULCAST_(1) << 9)
-#define R3K_ENTRYLO_D (_ULCAST_(1) << 10)
-#define R3K_ENTRYLO_N (_ULCAST_(1) << 11)
-
-/* R4000 compatible EntryLo bit definitions */
-#define MIPS_ENTRYLO_G (_ULCAST_(1) << 0)
-#define MIPS_ENTRYLO_V (_ULCAST_(1) << 1)
-#define MIPS_ENTRYLO_D (_ULCAST_(1) << 2)
-#define MIPS_ENTRYLO_C_SHIFT 3
-#define MIPS_ENTRYLO_C (_ULCAST_(7) << MIPS_ENTRYLO_C_SHIFT)
-#ifdef CONFIG_64BIT
-/* as read by dmfc0 */
-#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 62)
-#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 63)
-#else
-/* as read by mfc0 */
-#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 30)
-#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 31)
-#endif
-
/* CMGCRBase bit definitions */
#define MIPS_CMGCRB_BASE 11
#define MIPS_CMGCRF_BASE (~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1))
@@ -932,7 +938,7 @@ do { \
*/
#define __read_32bit_c0_register(source, sel) \
-({ int __res; \
+({ unsigned int __res; \
if (sel == 0) \
__asm__ __volatile__( \
"mfc0\t%0, " #source "\n\t" \
@@ -1014,7 +1020,7 @@ do { \
* On RM7000/RM9000 these are uses to access cop0 set 1 registers
*/
#define __read_32bit_c0_ctrl_register(source) \
-({ int __res; \
+({ unsigned int __res; \
__asm__ __volatile__( \
"cfc0\t%0, " #source "\n\t" \
: "=r" (__res)); \
@@ -1471,7 +1477,7 @@ do { \
*/
#define _read_32bit_cp1_register(source, gas_hardfloat) \
({ \
- int __res; \
+ unsigned int __res; \
\
__asm__ __volatile__( \
" .set push \n" \
diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h
index af5638b12..bbb85fe21 100644
--- a/arch/mips/include/asm/msa.h
+++ b/arch/mips/include/asm/msa.h
@@ -14,10 +14,90 @@
#ifndef __ASSEMBLY__
+#include <asm/inst.h>
+
extern void _save_msa(struct task_struct *);
extern void _restore_msa(struct task_struct *);
extern void _init_msa_upper(void);
+extern void read_msa_wr_b(unsigned idx, union fpureg *to);
+extern void read_msa_wr_h(unsigned idx, union fpureg *to);
+extern void read_msa_wr_w(unsigned idx, union fpureg *to);
+extern void read_msa_wr_d(unsigned idx, union fpureg *to);
+
+/**
+ * read_msa_wr() - Read a single MSA vector register
+ * @idx: The index of the vector register to read
+ * @to: The FPU register union to store the registers value in
+ * @fmt: The format of the data in the vector register
+ *
+ * Read the value of MSA vector register idx into the FPU register
+ * union to, using the format fmt.
+ */
+static inline void read_msa_wr(unsigned idx, union fpureg *to,
+ enum msa_2b_fmt fmt)
+{
+ switch (fmt) {
+ case msa_fmt_b:
+ read_msa_wr_b(idx, to);
+ break;
+
+ case msa_fmt_h:
+ read_msa_wr_h(idx, to);
+ break;
+
+ case msa_fmt_w:
+ read_msa_wr_w(idx, to);
+ break;
+
+ case msa_fmt_d:
+ read_msa_wr_d(idx, to);
+ break;
+
+ default:
+ BUG();
+ }
+}
+
+extern void write_msa_wr_b(unsigned idx, union fpureg *from);
+extern void write_msa_wr_h(unsigned idx, union fpureg *from);
+extern void write_msa_wr_w(unsigned idx, union fpureg *from);
+extern void write_msa_wr_d(unsigned idx, union fpureg *from);
+
+/**
+ * write_msa_wr() - Write a single MSA vector register
+ * @idx: The index of the vector register to write
+ * @from: The FPU register union to take the registers value from
+ * @fmt: The format of the data in the vector register
+ *
+ * Write the value from the FPU register union from into MSA vector
+ * register idx, using the format fmt.
+ */
+static inline void write_msa_wr(unsigned idx, union fpureg *from,
+ enum msa_2b_fmt fmt)
+{
+ switch (fmt) {
+ case msa_fmt_b:
+ write_msa_wr_b(idx, from);
+ break;
+
+ case msa_fmt_h:
+ write_msa_wr_h(idx, from);
+ break;
+
+ case msa_fmt_w:
+ write_msa_wr_w(idx, from);
+ break;
+
+ case msa_fmt_d:
+ write_msa_wr_d(idx, from);
+ break;
+
+ default:
+ BUG();
+ }
+}
+
static inline void enable_msa(void)
{
if (cpu_has_msa) {
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index 2a4c12827..be52c2125 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -57,8 +57,8 @@
#include <asm/mach-netlogic/multi-node.h>
struct irq_desc;
-void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc);
-void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc);
+void nlm_smp_function_ipi_handler(struct irq_desc *desc);
+void nlm_smp_resched_ipi_handler(struct irq_desc *desc);
void nlm_smp_irq_init(int hwcpuid);
void nlm_boot_secondary_cpus(void);
int nlm_wakeup_secondary_cpus(void);
diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
index c373d95b5..d92cf59bd 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
@@ -284,6 +284,7 @@ enum cvmx_board_types_enum {
CVMX_BOARD_TYPE_CUST_PRIVATE_MIN = 20001,
CVMX_BOARD_TYPE_UBNT_E100 = 20002,
CVMX_BOARD_TYPE_CUST_DSR1000N = 20006,
+ CVMX_BOARD_TYPE_KONTRON_S1901 = 21901,
CVMX_BOARD_TYPE_CUST_PRIVATE_MAX = 30000,
/* The remaining range is reserved for future use. */
@@ -384,6 +385,7 @@ static inline const char *cvmx_board_type_to_string(enum
ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MIN)
ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_UBNT_E100)
ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_DSR1000N)
+ ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_KONTRON_S1901)
ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MAX)
}
return "Unsupported Board";
diff --git a/arch/mips/include/asm/octeon/cvmx-pip.h b/arch/mips/include/asm/octeon/cvmx-pip.h
index df69bfd2b..c210154ad 100644
--- a/arch/mips/include/asm/octeon/cvmx-pip.h
+++ b/arch/mips/include/asm/octeon/cvmx-pip.h
@@ -37,7 +37,7 @@
#include <asm/octeon/cvmx-fpa.h>
#include <asm/octeon/cvmx-pip-defs.h>
-#define CVMX_PIP_NUM_INPUT_PORTS 40
+#define CVMX_PIP_NUM_INPUT_PORTS 48
#define CVMX_PIP_NUM_WATCHERS 4
/*
diff --git a/arch/mips/include/asm/octeon/cvmx-pko.h b/arch/mips/include/asm/octeon/cvmx-pko.h
index 3da59bb8c..5f47f76ed 100644
--- a/arch/mips/include/asm/octeon/cvmx-pko.h
+++ b/arch/mips/include/asm/octeon/cvmx-pko.h
@@ -542,6 +542,9 @@ static inline int cvmx_pko_get_base_queue_per_core(int port, int core)
*/
static inline int cvmx_pko_get_base_queue(int port)
{
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+ return port;
+
return cvmx_pko_get_base_queue_per_core(port, 0);
}
diff --git a/arch/mips/include/asm/octeon/cvmx-pow-defs.h b/arch/mips/include/asm/octeon/cvmx-pow-defs.h
index 9020ef443..6a3db4b06 100644
--- a/arch/mips/include/asm/octeon/cvmx-pow-defs.h
+++ b/arch/mips/include/asm/octeon/cvmx-pow-defs.h
@@ -52,6 +52,12 @@
#define CVMX_POW_WQ_INT_THRX(offset) (CVMX_ADD_IO_SEG(0x0001670000000080ull) + ((offset) & 15) * 8)
#define CVMX_POW_WS_PCX(offset) (CVMX_ADD_IO_SEG(0x0001670000000280ull) + ((offset) & 15) * 8)
+#define CVMX_SSO_WQ_INT (CVMX_ADD_IO_SEG(0x0001670000001000ull))
+#define CVMX_SSO_WQ_IQ_DIS (CVMX_ADD_IO_SEG(0x0001670000001010ull))
+#define CVMX_SSO_WQ_INT_PC (CVMX_ADD_IO_SEG(0x0001670000001020ull))
+#define CVMX_SSO_PPX_GRP_MSK(offset) (CVMX_ADD_IO_SEG(0x0001670000006000ull) + ((offset) & 31) * 8)
+#define CVMX_SSO_WQ_INT_THRX(offset) (CVMX_ADD_IO_SEG(0x0001670000007000ull) + ((offset) & 63) * 8)
+
union cvmx_pow_bist_stat {
uint64_t u64;
struct cvmx_pow_bist_stat_s {
@@ -1286,4 +1292,27 @@ union cvmx_pow_ws_pcx {
struct cvmx_pow_ws_pcx_s cnf71xx;
};
+union cvmx_sso_wq_int_thrx {
+ uint64_t u64;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint64_t reserved_33_63:31;
+ uint64_t tc_en:1;
+ uint64_t tc_thr:4;
+ uint64_t reserved_26_27:2;
+ uint64_t ds_thr:12;
+ uint64_t reserved_12_13:2;
+ uint64_t iq_thr:12;
+#else
+ uint64_t iq_thr:12;
+ uint64_t reserved_12_13:2;
+ uint64_t ds_thr:12;
+ uint64_t reserved_26_27:2;
+ uint64_t tc_thr:4;
+ uint64_t tc_en:1;
+ uint64_t reserved_33_63:31;
+#endif
+ } s;
+};
+
#endif
diff --git a/arch/mips/include/asm/octeon/cvmx-pow.h b/arch/mips/include/asm/octeon/cvmx-pow.h
index d5565d758..51531563f 100644
--- a/arch/mips/include/asm/octeon/cvmx-pow.h
+++ b/arch/mips/include/asm/octeon/cvmx-pow.h
@@ -1810,10 +1810,11 @@ static inline void cvmx_pow_work_submit(cvmx_wqe_t *wqp, uint32_t tag,
cvmx_addr_t ptr;
cvmx_pow_tag_req_t tag_req;
- wqp->qos = qos;
- wqp->tag = tag;
- wqp->tag_type = tag_type;
- wqp->grp = grp;
+ wqp->word1.tag = tag;
+ wqp->word1.tag_type = tag_type;
+
+ cvmx_wqe_set_qos(wqp, qos);
+ cvmx_wqe_set_grp(wqp, grp);
tag_req.u64 = 0;
tag_req.s.op = CVMX_POW_TAG_OP_ADDWQ;
diff --git a/arch/mips/include/asm/octeon/cvmx-wqe.h b/arch/mips/include/asm/octeon/cvmx-wqe.h
index 2d6d0c712..0d697aa78 100644
--- a/arch/mips/include/asm/octeon/cvmx-wqe.h
+++ b/arch/mips/include/asm/octeon/cvmx-wqe.h
@@ -193,6 +193,53 @@ typedef union {
uint64_t bufs:8;
#endif
} s;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint64_t bufs:8;
+ uint64_t ip_offset:8;
+ uint64_t vlan_valid:1;
+ uint64_t vlan_stacked:1;
+ uint64_t unassigned:1;
+ uint64_t vlan_cfi:1;
+ uint64_t vlan_id:12;
+ uint64_t port:12; /* MAC/PIP port number. */
+ uint64_t dec_ipcomp:1;
+ uint64_t tcp_or_udp:1;
+ uint64_t dec_ipsec:1;
+ uint64_t is_v6:1;
+ uint64_t software:1;
+ uint64_t L4_error:1;
+ uint64_t is_frag:1;
+ uint64_t IP_exc:1;
+ uint64_t is_bcast:1;
+ uint64_t is_mcast:1;
+ uint64_t not_IP:1;
+ uint64_t rcv_error:1;
+ uint64_t err_code:8;
+#else
+ uint64_t err_code:8;
+ uint64_t rcv_error:1;
+ uint64_t not_IP:1;
+ uint64_t is_mcast:1;
+ uint64_t is_bcast:1;
+ uint64_t IP_exc:1;
+ uint64_t is_frag:1;
+ uint64_t L4_error:1;
+ uint64_t software:1;
+ uint64_t is_v6:1;
+ uint64_t dec_ipsec:1;
+ uint64_t tcp_or_udp:1;
+ uint64_t dec_ipcomp:1;
+ uint64_t port:12;
+ uint64_t vlan_id:12;
+ uint64_t vlan_cfi:1;
+ uint64_t unassigned:1;
+ uint64_t vlan_stacked:1;
+ uint64_t vlan_valid:1;
+ uint64_t ip_offset:8;
+ uint64_t bufs:8;
+#endif
+ } s_cn68xx;
/* use this to get at the 16 vlan bits */
struct {
@@ -355,6 +402,146 @@ typedef union {
} cvmx_pip_wqe_word2;
+union cvmx_pip_wqe_word0 {
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ /**
+ * raw chksum result generated by the HW
+ */
+ uint16_t hw_chksum;
+ /**
+ * Field unused by hardware - available for software
+ */
+ uint8_t unused;
+ /**
+ * Next pointer used by hardware for list maintenance.
+ * May be written/read by HW before the work queue
+ * entry is scheduled to a PP (Only 36 bits used in
+ * Octeon 1)
+ */
+ uint64_t next_ptr:40;
+#else
+ uint64_t next_ptr:40;
+ uint8_t unused;
+ uint16_t hw_chksum;
+#endif
+ } cn38xx;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint64_t l4ptr:8; /* 56..63 */
+ uint64_t unused0:8; /* 48..55 */
+ uint64_t l3ptr:8; /* 40..47 */
+ uint64_t l2ptr:8; /* 32..39 */
+ uint64_t unused1:18; /* 14..31 */
+ uint64_t bpid:6; /* 8..13 */
+ uint64_t unused2:2; /* 6..7 */
+ uint64_t pknd:6; /* 0..5 */
+#else
+ uint64_t pknd:6; /* 0..5 */
+ uint64_t unused2:2; /* 6..7 */
+ uint64_t bpid:6; /* 8..13 */
+ uint64_t unused1:18; /* 14..31 */
+ uint64_t l2ptr:8; /* 32..39 */
+ uint64_t l3ptr:8; /* 40..47 */
+ uint64_t unused0:8; /* 48..55 */
+ uint64_t l4ptr:8; /* 56..63 */
+#endif
+ } cn68xx;
+};
+
+union cvmx_wqe_word0 {
+ uint64_t u64;
+ union cvmx_pip_wqe_word0 pip;
+};
+
+union cvmx_wqe_word1 {
+ uint64_t u64;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint64_t len:16;
+ uint64_t varies:14;
+ /**
+ * the type of the tag (ORDERED, ATOMIC, NULL)
+ */
+ uint64_t tag_type:2;
+ uint64_t tag:32;
+#else
+ uint64_t tag:32;
+ uint64_t tag_type:2;
+ uint64_t varies:14;
+ uint64_t len:16;
+#endif
+ };
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint64_t len:16;
+ uint64_t zero_0:1;
+ /**
+ * HW sets this to what it thought the priority of
+ * the input packet was
+ */
+ uint64_t qos:3;
+
+ uint64_t zero_1:1;
+ /**
+ * the group that the work queue entry will be scheduled to
+ */
+ uint64_t grp:6;
+ uint64_t zero_2:3;
+ uint64_t tag_type:2;
+ uint64_t tag:32;
+#else
+ uint64_t tag:32;
+ uint64_t tag_type:2;
+ uint64_t zero_2:3;
+ uint64_t grp:6;
+ uint64_t zero_1:1;
+ uint64_t qos:3;
+ uint64_t zero_0:1;
+ uint64_t len:16;
+#endif
+ } cn68xx;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ /**
+ * HW sets to the total number of bytes in the packet
+ */
+ uint64_t len:16;
+ /**
+ * HW sets this to input physical port
+ */
+ uint64_t ipprt:6;
+
+ /**
+ * HW sets this to what it thought the priority of
+ * the input packet was
+ */
+ uint64_t qos:3;
+
+ /**
+ * the group that the work queue entry will be scheduled to
+ */
+ uint64_t grp:4;
+ /**
+ * the type of the tag (ORDERED, ATOMIC, NULL)
+ */
+ uint64_t tag_type:3;
+ /**
+ * the synchronization/ordering tag
+ */
+ uint64_t tag:32;
+#else
+ uint64_t tag:32;
+ uint64_t tag_type:2;
+ uint64_t zero_2:1;
+ uint64_t grp:4;
+ uint64_t qos:3;
+ uint64_t ipprt:6;
+ uint64_t len:16;
+#endif
+ } cn38xx;
+};
+
/**
* Work queue entry format
*
@@ -366,70 +553,13 @@ typedef struct {
* WORD 0
* HW WRITE: the following 64 bits are filled by HW when a packet arrives
*/
-
-#ifdef __BIG_ENDIAN_BITFIELD
- /**
- * raw chksum result generated by the HW
- */
- uint16_t hw_chksum;
- /**
- * Field unused by hardware - available for software
- */
- uint8_t unused;
- /**
- * Next pointer used by hardware for list maintenance.
- * May be written/read by HW before the work queue
- * entry is scheduled to a PP
- * (Only 36 bits used in Octeon 1)
- */
- uint64_t next_ptr:40;
-#else
- uint64_t next_ptr:40;
- uint8_t unused;
- uint16_t hw_chksum;
-#endif
+ union cvmx_wqe_word0 word0;
/*****************************************************************
* WORD 1
* HW WRITE: the following 64 bits are filled by HW when a packet arrives
*/
-
-#ifdef __BIG_ENDIAN_BITFIELD
- /**
- * HW sets to the total number of bytes in the packet
- */
- uint64_t len:16;
- /**
- * HW sets this to input physical port
- */
- uint64_t ipprt:6;
-
- /**
- * HW sets this to what it thought the priority of the input packet was
- */
- uint64_t qos:3;
-
- /**
- * the group that the work queue entry will be scheduled to
- */
- uint64_t grp:4;
- /**
- * the type of the tag (ORDERED, ATOMIC, NULL)
- */
- uint64_t tag_type:3;
- /**
- * the synchronization/ordering tag
- */
- uint64_t tag:32;
-#else
- uint64_t tag:32;
- uint64_t tag_type:2;
- uint64_t zero_2:1;
- uint64_t grp:4;
- uint64_t qos:3;
- uint64_t ipprt:6;
- uint64_t len:16;
-#endif
+ union cvmx_wqe_word1 word1;
/**
* WORD 2 HW WRITE: the following 64-bits are filled in by
@@ -465,4 +595,64 @@ typedef struct {
} CVMX_CACHE_LINE_ALIGNED cvmx_wqe_t;
+static inline int cvmx_wqe_get_port(cvmx_wqe_t *work)
+{
+ int port;
+
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ port = work->word2.s_cn68xx.port;
+ else
+ port = work->word1.cn38xx.ipprt;
+
+ return port;
+}
+
+static inline void cvmx_wqe_set_port(cvmx_wqe_t *work, int port)
+{
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ work->word2.s_cn68xx.port = port;
+ else
+ work->word1.cn38xx.ipprt = port;
+}
+
+static inline int cvmx_wqe_get_grp(cvmx_wqe_t *work)
+{
+ int grp;
+
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ grp = work->word1.cn68xx.grp;
+ else
+ grp = work->word1.cn38xx.grp;
+
+ return grp;
+}
+
+static inline void cvmx_wqe_set_grp(cvmx_wqe_t *work, int grp)
+{
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ work->word1.cn68xx.grp = grp;
+ else
+ work->word1.cn38xx.grp = grp;
+}
+
+static inline int cvmx_wqe_get_qos(cvmx_wqe_t *work)
+{
+ int qos;
+
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ qos = work->word1.cn68xx.qos;
+ else
+ qos = work->word1.cn38xx.qos;
+
+ return qos;
+}
+
+static inline void cvmx_wqe_set_qos(cvmx_wqe_t *work, int qos)
+{
+ if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE))
+ work->word1.cn68xx.qos = qos;
+ else
+ work->word1.cn38xx.qos = qos;
+}
+
#endif /* __CVMX_WQE_H__ */
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h
index c28a8499a..ff7ad91c8 100644
--- a/arch/mips/include/asm/pgtable-bits.h
+++ b/arch/mips/include/asm/pgtable-bits.h
@@ -133,20 +133,13 @@
#define _PAGE_HUGE (1 << _PAGE_HUGE_SHIFT)
#define _PAGE_SPLITTING_SHIFT (_PAGE_HUGE_SHIFT + 1)
#define _PAGE_SPLITTING (1 << _PAGE_SPLITTING_SHIFT)
-
-/* Only R2 or newer cores have the XI bit */
-#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
-#define _PAGE_NO_EXEC_SHIFT (_PAGE_SPLITTING_SHIFT + 1)
-#else
-#define _PAGE_GLOBAL_SHIFT (_PAGE_SPLITTING_SHIFT + 1)
-#define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT)
-#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
-
#endif /* CONFIG_64BIT && CONFIG_MIPS_HUGE_TLB_SUPPORT */
#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
/* XI - page cannot be executed */
-#ifndef _PAGE_NO_EXEC_SHIFT
+#ifdef _PAGE_SPLITTING_SHIFT
+#define _PAGE_NO_EXEC_SHIFT (_PAGE_SPLITTING_SHIFT + 1)
+#else
#define _PAGE_NO_EXEC_SHIFT (_PAGE_MODIFIED_SHIFT + 1)
#endif
#define _PAGE_NO_EXEC (cpu_has_rixi ? (1 << _PAGE_NO_EXEC_SHIFT) : 0)
@@ -156,14 +149,16 @@
#define _PAGE_READ (cpu_has_rixi ? 0 : (1 << _PAGE_READ_SHIFT))
#define _PAGE_NO_READ_SHIFT _PAGE_READ_SHIFT
#define _PAGE_NO_READ (cpu_has_rixi ? (1 << _PAGE_READ_SHIFT) : 0)
+#endif /* defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) */
+#if defined(_PAGE_NO_READ_SHIFT)
#define _PAGE_GLOBAL_SHIFT (_PAGE_NO_READ_SHIFT + 1)
-#define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT)
-
-#else /* !CONFIG_CPU_MIPSR2 && !CONFIG_CPU_MIPSR6 */
+#elif defined(_PAGE_SPLITTING_SHIFT)
+#define _PAGE_GLOBAL_SHIFT (_PAGE_SPLITTING_SHIFT + 1)
+#else
#define _PAGE_GLOBAL_SHIFT (_PAGE_MODIFIED_SHIFT + 1)
+#endif
#define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT)
-#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
#define _PAGE_VALID_SHIFT (_PAGE_GLOBAL_SHIFT + 1)
#define _PAGE_VALID (1 << _PAGE_VALID_SHIFT)
@@ -249,7 +244,7 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val)
#define _CACHE_CACHABLE_NONCOHERENT (3<<_CACHE_SHIFT) /* LOONGSON */
#define _CACHE_CACHABLE_COHERENT (3<<_CACHE_SHIFT) /* LOONGSON-3 */
-#elif defined(CONFIG_MACH_JZ4740)
+#elif defined(CONFIG_MACH_INGENIC)
/* Ingenic uses the WA bit to achieve write-combine memory writes */
#define _CACHE_UNCACHED_ACCELERATED (1<<_CACHE_SHIFT)
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index ae8569475..8957f15e2 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -393,6 +393,8 @@ static inline pgprot_t pgprot_noncached(pgprot_t _prot)
return __pgprot(prot);
}
+#define pgprot_writecombine pgprot_writecombine
+
static inline pgprot_t pgprot_writecombine(pgprot_t _prot)
{
unsigned long prot = pgprot_val(_prot);
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 9b3b48e21..59ee6dcf6 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -275,6 +275,7 @@ struct thread_struct {
unsigned long cp0_badvaddr; /* Last user fault */
unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */
unsigned long error_code;
+ unsigned long trap_nr;
#ifdef CONFIG_CPU_CAVIUM_OCTEON
struct octeon_cop2_state cp2 __attribute__ ((__aligned__(128)));
struct octeon_cvmseg_state cvmseg __attribute__ ((__aligned__(128)));
@@ -341,6 +342,7 @@ struct thread_struct {
.cp0_badvaddr = 0, \
.cp0_baduaddr = 0, \
.error_code = 0, \
+ .trap_nr = 0, \
/* \
* Platform specific cop2 registers(null if no COP2) \
*/ \
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index ffc320389..f6fc6aac5 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -14,11 +14,16 @@
#include <linux/linkage.h>
#include <linux/types.h>
#include <asm/isadep.h>
+#include <asm/page.h>
+#include <asm/thread_info.h>
#include <uapi/asm/ptrace.h>
/*
* This struct defines the way the registers are stored on the stack during a
* system call/exception. As usual the registers k0/k1 aren't being saved.
+ *
+ * If you add a register here, also add it to regoffset_table[] in
+ * arch/mips/kernel/ptrace.c.
*/
struct pt_regs {
#ifdef CONFIG_32BIT
@@ -43,8 +48,83 @@ struct pt_regs {
unsigned long long mpl[6]; /* MTM{0-5} */
unsigned long long mtp[6]; /* MTP{0-5} */
#endif
+ unsigned long __last[0];
} __aligned(8);
+static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
+ return regs->regs[31];
+}
+
+/*
+ * Don't use asm-generic/ptrace.h it defines FP accessors that don't make
+ * sense on MIPS. We rather want an error if they get invoked.
+ */
+
+static inline void instruction_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ regs->cp0_epc = val;
+}
+
+/* Query offset/name of register from its name/offset */
+extern int regs_query_register_offset(const char *name);
+#define MAX_REG_OFFSET (offsetof(struct pt_regs, __last))
+
+/**
+ * regs_get_register() - get register value from its offset
+ * @regs: pt_regs from which register value is gotten.
+ * @offset: offset number of the register.
+ *
+ * regs_get_register returns the value of a register. The @offset is the
+ * offset of the register in struct pt_regs address which specified by @regs.
+ * If @offset is bigger than MAX_REG_OFFSET, this returns 0.
+ */
+static inline unsigned long regs_get_register(struct pt_regs *regs,
+ unsigned int offset)
+{
+ if (unlikely(offset > MAX_REG_OFFSET))
+ return 0;
+
+ return *(unsigned long *)((unsigned long)regs + offset);
+}
+
+/**
+ * regs_within_kernel_stack() - check the address in the stack
+ * @regs: pt_regs which contains kernel stack pointer.
+ * @addr: address which is checked.
+ *
+ * regs_within_kernel_stack() checks @addr is within the kernel stack page(s).
+ * If @addr is within the kernel stack, it returns true. If not, returns false.
+ */
+static inline int regs_within_kernel_stack(struct pt_regs *regs,
+ unsigned long addr)
+{
+ return ((addr & ~(THREAD_SIZE - 1)) ==
+ (kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1)));
+}
+
+/**
+ * regs_get_kernel_stack_nth() - get Nth entry of the stack
+ * @regs: pt_regs which contains kernel stack pointer.
+ * @n: stack entry number.
+ *
+ * regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which
+ * is specified by @regs. If the @n th entry is NOT in the kernel stack,
+ * this returns 0.
+ */
+static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
+ unsigned int n)
+{
+ unsigned long *addr = (unsigned long *)kernel_stack_pointer(regs);
+
+ addr += n;
+ if (regs_within_kernel_stack(regs, (unsigned long)addr))
+ return *addr;
+ else
+ return 0;
+}
+
struct task_struct;
extern int ptrace_getregs(struct task_struct *child,
diff --git a/arch/mips/include/asm/signal.h b/arch/mips/include/asm/signal.h
index 8efe5a9e2..003e273ef 100644
--- a/arch/mips/include/asm/signal.h
+++ b/arch/mips/include/asm/signal.h
@@ -23,4 +23,7 @@
#define __ARCH_HAS_IRIX_SIGACTION
+extern int protected_save_fp_context(void __user *sc);
+extern int protected_restore_fp_context(void __user *sc);
+
#endif /* _ASM_SIGNAL_H */
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index 9de4ba43d..40196bebe 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -42,6 +42,11 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lock)
return ((counters >> 16) ^ counters) & 0xffff;
}
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+ return lock.h.serving_now == lock.h.ticket;
+}
+
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
#define arch_spin_unlock_wait(x) \
while (arch_spin_is_locked(x)) { cpu_relax(); }
diff --git a/arch/mips/include/asm/switch_to.h b/arch/mips/include/asm/switch_to.h
index 7163cd7fd..28b5d84a5 100644
--- a/arch/mips/include/asm/switch_to.h
+++ b/arch/mips/include/asm/switch_to.h
@@ -16,29 +16,21 @@
#include <asm/watch.h>
#include <asm/dsp.h>
#include <asm/cop2.h>
-#include <asm/msa.h>
+#include <asm/fpu.h>
struct task_struct;
-enum {
- FP_SAVE_NONE = 0,
- FP_SAVE_VECTOR = -1,
- FP_SAVE_SCALAR = 1,
-};
-
/**
* resume - resume execution of a task
* @prev: The task previously executed.
* @next: The task to begin executing.
* @next_ti: task_thread_info(next).
- * @fp_save: Which, if any, FP context to save for prev.
*
* This function is used whilst scheduling to save the context of prev & load
* the context of next. Returns prev.
*/
extern asmlinkage struct task_struct *resume(struct task_struct *prev,
- struct task_struct *next, struct thread_info *next_ti,
- s32 fp_save);
+ struct task_struct *next, struct thread_info *next_ti);
extern unsigned int ll_bit;
extern struct task_struct *ll_task;
@@ -83,45 +75,38 @@ do { if (cpu_has_rw_llb) { \
} \
} while (0)
+/*
+ * For newly created kernel threads switch_to() will return to
+ * ret_from_kernel_thread, newly created user threads to ret_from_fork.
+ * That is, everything following resume() will be skipped for new threads.
+ * So everything that matters to new threads should be placed before resume().
+ */
#define switch_to(prev, next, last) \
do { \
- u32 __c0_stat; \
- s32 __fpsave = FP_SAVE_NONE; \
__mips_mt_fpaff_switch_to(prev); \
- if (cpu_has_dsp) \
+ lose_fpu_inatomic(1, prev); \
+ if (cpu_has_dsp) { \
__save_dsp(prev); \
- if (cop2_present && (KSTK_STATUS(prev) & ST0_CU2)) { \
- if (cop2_lazy_restore) \
- KSTK_STATUS(prev) &= ~ST0_CU2; \
- __c0_stat = read_c0_status(); \
- write_c0_status(__c0_stat | ST0_CU2); \
- cop2_save(prev); \
- write_c0_status(__c0_stat & ~ST0_CU2); \
+ __restore_dsp(next); \
} \
- __clear_software_ll_bit(); \
- if (test_and_clear_tsk_thread_flag(prev, TIF_USEDFPU)) \
- __fpsave = FP_SAVE_SCALAR; \
- if (test_and_clear_tsk_thread_flag(prev, TIF_USEDMSA)) \
- __fpsave = FP_SAVE_VECTOR; \
- (last) = resume(prev, next, task_thread_info(next), __fpsave); \
-} while (0)
-
-#define finish_arch_switch(prev) \
-do { \
- u32 __c0_stat; \
- if (cop2_present && !cop2_lazy_restore && \
- (KSTK_STATUS(current) & ST0_CU2)) { \
- __c0_stat = read_c0_status(); \
- write_c0_status(__c0_stat | ST0_CU2); \
- cop2_restore(current); \
- write_c0_status(__c0_stat & ~ST0_CU2); \
+ if (cop2_present) { \
+ set_c0_status(ST0_CU2); \
+ if ((KSTK_STATUS(prev) & ST0_CU2)) { \
+ if (cop2_lazy_restore) \
+ KSTK_STATUS(prev) &= ~ST0_CU2; \
+ cop2_save(prev); \
+ } \
+ if (KSTK_STATUS(next) & ST0_CU2 && \
+ !cop2_lazy_restore) { \
+ cop2_restore(next); \
+ } \
+ clear_c0_status(ST0_CU2); \
} \
- if (cpu_has_dsp) \
- __restore_dsp(current); \
+ __clear_software_ll_bit(); \
if (cpu_has_userlocal) \
- write_c0_userlocal(current_thread_info()->tp_value); \
+ write_c0_userlocal(task_thread_info(next)->tp_value); \
__restore_watch(); \
- disable_msa(); \
+ (last) = resume(prev, next, task_thread_info(next)); \
} while (0)
#endif /* _ASM_SWITCH_TO_H */
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 9c0014e87..e309d8fcb 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -99,6 +99,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_SYSCALL_AUDIT 3 /* syscall auditing active */
#define TIF_SECCOMP 4 /* secure computing */
#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
+#define TIF_UPROBE 6 /* breakpointed or singlestepping */
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
@@ -122,6 +123,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+#define _TIF_UPROBE (1<<TIF_UPROBE)
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_NOHZ (1<<TIF_NOHZ)
#define _TIF_FIXADE (1<<TIF_FIXADE)
@@ -146,7 +148,8 @@ static inline struct thread_info *current_thread_info(void)
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK \
- (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME)
+ (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME | \
+ _TIF_UPROBE)
/* work to do on any return to u-space */
#define _TIF_ALLWORK_MASK (_TIF_NOHZ | _TIF_WORK_MASK | \
_TIF_WORK_SYSCALL_EXIT | \
diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h
index 8ab287422..17d4cd20f 100644
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -51,7 +51,7 @@ extern int __weak get_c0_perfcount_int(void);
/*
* Initialize the calling CPU's compare interrupt as clockevent device
*/
-extern unsigned int __weak get_c0_compare_int(void);
+extern unsigned int get_c0_compare_int(void);
extern int r4k_clockevent_init(void);
static inline int mips_clockevent_init(void)
diff --git a/arch/mips/include/asm/tlbdebug.h b/arch/mips/include/asm/tlbdebug.h
index bb8f5c29c..3a25a8780 100644
--- a/arch/mips/include/asm/tlbdebug.h
+++ b/arch/mips/include/asm/tlbdebug.h
@@ -11,6 +11,7 @@
/*
* TLB debugging functions:
*/
+extern void dump_tlb_regs(void);
extern void dump_tlb_all(void);
#endif /* __ASM_TLBDEBUG_H */
diff --git a/arch/mips/include/asm/uprobes.h b/arch/mips/include/asm/uprobes.h
new file mode 100644
index 000000000..34c325c67
--- /dev/null
+++ b/arch/mips/include/asm/uprobes.h
@@ -0,0 +1,58 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_UPROBES_H
+#define __ASM_UPROBES_H
+
+#include <linux/notifier.h>
+#include <linux/types.h>
+
+#include <asm/break.h>
+#include <asm/inst.h>
+
+/*
+ * We want this to be defined as union mips_instruction but that makes the
+ * generic code blow up.
+ */
+typedef u32 uprobe_opcode_t;
+
+/*
+ * Classic MIPS (note this implementation doesn't consider microMIPS yet)
+ * instructions are always 4 bytes but in order to deal with branches and
+ * their delay slots, we treat instructions as having 8 bytes maximum.
+ */
+#define MAX_UINSN_BYTES 8
+#define UPROBE_XOL_SLOT_BYTES 128 /* Max. cache line size */
+
+#define UPROBE_BRK_UPROBE 0x000d000d /* break 13 */
+#define UPROBE_BRK_UPROBE_XOL 0x000e000d /* break 14 */
+
+#define UPROBE_SWBP_INSN UPROBE_BRK_UPROBE
+#define UPROBE_SWBP_INSN_SIZE 4
+
+struct arch_uprobe {
+ unsigned long resume_epc;
+ u32 insn[2];
+ u32 ixol[2];
+ union mips_instruction orig_inst[MAX_UINSN_BYTES / 4];
+};
+
+struct arch_uprobe_task {
+ unsigned long saved_trap_nr;
+};
+
+extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup,
+ struct mm_struct *mm, unsigned long addr);
+extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
+extern int arch_uprobe_exception_notify(struct notifier_block *self,
+ unsigned long val, void *data);
+extern void arch_uprobe_abort_xol(struct arch_uprobe *aup,
+ struct pt_regs *regs);
+extern unsigned long arch_uretprobe_hijack_return_addr(
+ unsigned long trampoline_vaddr, struct pt_regs *regs);
+
+#endif /* __ASM_UPROBES_H */
diff --git a/arch/mips/include/asm/vpe.h b/arch/mips/include/asm/vpe.h
index 7849f3978..80e70dbd1 100644
--- a/arch/mips/include/asm/vpe.h
+++ b/arch/mips/include/asm/vpe.h
@@ -122,7 +122,7 @@ void release_vpe(struct vpe *v);
void *alloc_progmem(unsigned long len);
void release_progmem(void *ptr);
-int __weak vpe_run(struct vpe *v);
+int vpe_run(struct vpe *v);
void cleanup_tc(struct tc *tc);
int __init vpe_module_init(void);
diff --git a/arch/mips/include/uapi/asm/break.h b/arch/mips/include/uapi/asm/break.h
index 002c39ea2..9c4265cbf 100644
--- a/arch/mips/include/uapi/asm/break.h
+++ b/arch/mips/include/uapi/asm/break.h
@@ -21,6 +21,8 @@
#define BRK_DIVZERO 7 /* Divide by zero check */
#define BRK_RANGE 8 /* Range error check */
#define BRK_BUG 12 /* Used by BUG() */
+#define BRK_UPROBE 13 /* See <asm/uprobes.h> */
+#define BRK_UPROBE_XOL 14 /* See <asm/uprobes.h> */
#define BRK_MEMU 514 /* Used by FPU emulator */
#define BRK_KPROBE_BP 515 /* Kprobe break */
#define BRK_KPROBE_SSTEPBP 516 /* Kprobe single step software implementation */
diff --git a/arch/mips/include/uapi/asm/hwcap.h b/arch/mips/include/uapi/asm/hwcap.h
new file mode 100644
index 000000000..c7484a7ca
--- /dev/null
+++ b/arch/mips/include/uapi/asm/hwcap.h
@@ -0,0 +1,8 @@
+#ifndef _UAPI_ASM_HWCAP_H
+#define _UAPI_ASM_HWCAP_H
+
+/* HWCAP flags */
+#define HWCAP_MIPS_R6 (1 << 0)
+#define HWCAP_MIPS_MSA (1 << 1)
+
+#endif /* _UAPI_ASM_HWCAP_H */
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index fc0cf5ac0..9b44d5a81 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -26,7 +26,7 @@ enum major_op {
cop0_op, cop1_op, cop2_op, cop1x_op,
beql_op, bnel_op, blezl_op, bgtzl_op,
daddi_op, cbcond1_op = daddi_op, daddiu_op, ldl_op, ldr_op,
- spec2_op, jalx_op, mdmx_op, spec3_op,
+ spec2_op, jalx_op, mdmx_op, msa_op = mdmx_op, spec3_op,
lb_op, lh_op, lwl_op, lw_op,
lbu_op, lhu_op, lwr_op, lwu_op,
sb_op, sh_op, swl_op, sw_op,
@@ -167,8 +167,13 @@ enum cop1_sdw_func {
fround_op = 0x0c, ftrunc_op = 0x0d,
fceil_op = 0x0e, ffloor_op = 0x0f,
fmovc_op = 0x11, fmovz_op = 0x12,
- fmovn_op = 0x13, frecip_op = 0x15,
- frsqrt_op = 0x16, fcvts_op = 0x20,
+ fmovn_op = 0x13, fseleqz_op = 0x14,
+ frecip_op = 0x15, frsqrt_op = 0x16,
+ fselnez_op = 0x17, fmaddf_op = 0x18,
+ fmsubf_op = 0x19, frint_op = 0x1a,
+ fclass_op = 0x1b, fmin_op = 0x1c,
+ fmina_op = 0x1d, fmax_op = 0x1e,
+ fmaxa_op = 0x1f, fcvts_op = 0x20,
fcvtd_op = 0x21, fcvte_op = 0x22,
fcvtw_op = 0x24, fcvtl_op = 0x25,
fcmp_op = 0x30
@@ -221,6 +226,24 @@ enum bshfl_func {
};
/*
+ * func field for MSA MI10 format.
+ */
+enum msa_mi10_func {
+ msa_ld_op = 8,
+ msa_st_op = 9,
+};
+
+/*
+ * MSA 2 bit format fields.
+ */
+enum msa_2b_fmt {
+ msa_fmt_b = 0,
+ msa_fmt_h = 1,
+ msa_fmt_w = 2,
+ msa_fmt_d = 3,
+};
+
+/*
* (microMIPS) Major opcodes.
*/
enum mm_major_op {
@@ -611,6 +634,16 @@ struct v_format { /* MDMX vector format */
;)))))))
};
+struct msa_mi10_format { /* MSA MI10 */
+ __BITFIELD_FIELD(unsigned int opcode : 6,
+ __BITFIELD_FIELD(signed int s10 : 10,
+ __BITFIELD_FIELD(unsigned int rs : 5,
+ __BITFIELD_FIELD(unsigned int wd : 5,
+ __BITFIELD_FIELD(unsigned int func : 4,
+ __BITFIELD_FIELD(unsigned int df : 2,
+ ;))))))
+};
+
struct spec3_format { /* SPEC3 */
__BITFIELD_FIELD(unsigned int opcode:6,
__BITFIELD_FIELD(unsigned int rs:5,
@@ -888,6 +921,7 @@ union mips_instruction {
struct p_format p_format;
struct f_format f_format;
struct ma_format ma_format;
+ struct msa_mi10_format msa_mi10_format;
struct b_format b_format;
struct ps_format ps_format;
struct v_format v_format;
diff --git a/arch/mips/include/uapi/asm/sigcontext.h b/arch/mips/include/uapi/asm/sigcontext.h
index 9081d88ae..5cbd9ae64 100644
--- a/arch/mips/include/uapi/asm/sigcontext.h
+++ b/arch/mips/include/uapi/asm/sigcontext.h
@@ -12,6 +12,18 @@
#include <linux/types.h>
#include <asm/sgidefs.h>
+/* scalar FP context was used */
+#define USED_FP (1 << 0)
+
+/* the value of Status.FR when context was saved */
+#define USED_FR1 (1 << 1)
+
+/* FR=1, but with odd singles in bits 63:32 of preceding even double */
+#define USED_HYBRID_FPRS (1 << 2)
+
+/* extended context was used, see struct extcontext for details */
+#define USED_EXTCONTEXT (1 << 3)
+
#if _MIPS_SIM == _MIPS_SIM_ABI32
/*
diff --git a/arch/mips/include/uapi/asm/swab.h b/arch/mips/include/uapi/asm/swab.h
index 8f2d184db..23cd9b118 100644
--- a/arch/mips/include/uapi/asm/swab.h
+++ b/arch/mips/include/uapi/asm/swab.h
@@ -13,8 +13,9 @@
#define __SWAB_64_THRU_32__
-#if (defined(__mips_isa_rev) && (__mips_isa_rev >= 2)) || \
- defined(_MIPS_ARCH_LOONGSON3A)
+#if !defined(__mips16) && \
+ ((defined(__mips_isa_rev) && (__mips_isa_rev >= 2)) || \
+ defined(_MIPS_ARCH_LOONGSON3A))
static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
@@ -65,5 +66,5 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
}
#define __arch_swab64 __arch_swab64
#endif /* __mips64 */
-#endif /* MIPS R2 or newer or Loongson 3A */
+#endif /* (not __mips16) and (MIPS R2 or newer or Loongson 3A) */
#endif /* _ASM_SWAB_H */
diff --git a/arch/mips/include/uapi/asm/ucontext.h b/arch/mips/include/uapi/asm/ucontext.h
new file mode 100644
index 000000000..2320144ce
--- /dev/null
+++ b/arch/mips/include/uapi/asm/ucontext.h
@@ -0,0 +1,65 @@
+#ifndef __MIPS_UAPI_ASM_UCONTEXT_H
+#define __MIPS_UAPI_ASM_UCONTEXT_H
+
+/**
+ * struct extcontext - extended context header structure
+ * @magic: magic value identifying the type of extended context
+ * @size: the size in bytes of the enclosing structure
+ *
+ * Extended context structures provide context which does not fit within struct
+ * sigcontext. They are placed sequentially in memory at the end of struct
+ * ucontext and struct sigframe, with each extended context structure beginning
+ * with a header defined by this struct. The type of context represented is
+ * indicated by the magic field. Userland may check each extended context
+ * structure against magic values that it recognises. The size field allows any
+ * unrecognised context to be skipped, allowing for future expansion. The end
+ * of the extended context data is indicated by the magic value
+ * END_EXTCONTEXT_MAGIC.
+ */
+struct extcontext {
+ unsigned int magic;
+ unsigned int size;
+};
+
+/**
+ * struct msa_extcontext - MSA extended context structure
+ * @ext: the extended context header, with magic == MSA_EXTCONTEXT_MAGIC
+ * @wr: the most significant 64 bits of each MSA vector register
+ * @csr: the value of the MSA control & status register
+ *
+ * If MSA context is live for a task at the time a signal is delivered to it,
+ * this structure will hold the MSA context of the task as it was prior to the
+ * signal delivery.
+ */
+struct msa_extcontext {
+ struct extcontext ext;
+#define MSA_EXTCONTEXT_MAGIC 0x784d5341 /* xMSA */
+
+ unsigned long long wr[32];
+ unsigned int csr;
+};
+
+#define END_EXTCONTEXT_MAGIC 0x78454e44 /* xEND */
+
+/**
+ * struct ucontext - user context structure
+ * @uc_flags:
+ * @uc_link:
+ * @uc_stack:
+ * @uc_mcontext: holds basic processor state
+ * @uc_sigmask:
+ * @uc_extcontext: holds extended processor state
+ */
+struct ucontext {
+ /* Historic fields matching asm-generic */
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask;
+
+ /* Extended context structures may follow ucontext */
+ unsigned long long uc_extcontext[0];
+};
+
+#endif /* __MIPS_UAPI_ASM_UCONTEXT_H */
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index c03088f9f..cfabadb13 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -377,16 +377,18 @@
#define __NR_memfd_create (__NR_Linux + 354)
#define __NR_bpf (__NR_Linux + 355)
#define __NR_execveat (__NR_Linux + 356)
+#define __NR_userfaultfd (__NR_Linux + 357)
+#define __NR_membarrier (__NR_Linux + 358)
/*
* Offset of the last Linux o32 flavoured syscall
*/
-#define __NR_Linux_syscalls 356
+#define __NR_Linux_syscalls 358
#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
#define __NR_O32_Linux 4000
-#define __NR_O32_Linux_syscalls 356
+#define __NR_O32_Linux_syscalls 358
#if _MIPS_SIM == _MIPS_SIM_ABI64
@@ -711,16 +713,18 @@
#define __NR_memfd_create (__NR_Linux + 314)
#define __NR_bpf (__NR_Linux + 315)
#define __NR_execveat (__NR_Linux + 316)
+#define __NR_userfaultfd (__NR_Linux + 317)
+#define __NR_membarrier (__NR_Linux + 318)
/*
* Offset of the last Linux 64-bit flavoured syscall
*/
-#define __NR_Linux_syscalls 316
+#define __NR_Linux_syscalls 318
#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
#define __NR_64_Linux 5000
-#define __NR_64_Linux_syscalls 316
+#define __NR_64_Linux_syscalls 318
#if _MIPS_SIM == _MIPS_SIM_NABI32
@@ -1049,15 +1053,17 @@
#define __NR_memfd_create (__NR_Linux + 318)
#define __NR_bpf (__NR_Linux + 319)
#define __NR_execveat (__NR_Linux + 320)
+#define __NR_userfaultfd (__NR_Linux + 321)
+#define __NR_membarrier (__NR_Linux + 322)
/*
* Offset of the last N32 flavoured syscall
*/
-#define __NR_Linux_syscalls 320
+#define __NR_Linux_syscalls 322
#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
#define __NR_N32_Linux 6000
-#define __NR_N32_Linux_syscalls 320
+#define __NR_N32_Linux_syscalls 322
#endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index e1ea4f625..5d6828b2a 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -110,18 +110,11 @@ asmlinkage void plat_irq_dispatch(void)
}
}
-static void r4030_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- /* Nothing to do ... */
-}
-
struct clock_event_device r4030_clockevent = {
.name = "r4030",
.features = CLOCK_EVT_FEAT_PERIODIC,
.rating = 300,
.irq = JAZZ_TIMER_IRQ,
- .set_mode = r4030_set_mode,
};
static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id)
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index 4e62bf85d..459cb0173 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -26,6 +26,7 @@
#include <linux/power/jz4740-battery.h>
#include <linux/power/gpio-charger.h>
+#include <asm/mach-jz4740/gpio.h>
#include <asm/mach-jz4740/jz4740_fb.h>
#include <asm/mach-jz4740/jz4740_mmc.h>
#include <asm/mach-jz4740/jz4740_nand.h>
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c
index 54c80d42a..8c6d76c9b 100644
--- a/arch/mips/jz4740/gpio.c
+++ b/arch/mips/jz4740/gpio.c
@@ -28,6 +28,7 @@
#include <linux/seq_file.h>
#include <asm/mach-jz4740/base.h>
+#include <asm/mach-jz4740/gpio.h>
#define JZ4740_GPIO_BASE_A (32*0)
#define JZ4740_GPIO_BASE_B (32*1)
@@ -231,6 +232,13 @@ static int jz_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
return 0;
}
+static int jz_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+ struct jz_gpio_chip *jz_gpio = gpio_chip_to_jz_gpio_chip(chip);
+
+ return jz_gpio->irq_base + gpio;
+}
+
int jz_gpio_port_direction_input(int port, uint32_t mask)
{
writel(mask, GPIO_TO_REG(port, JZ_REG_GPIO_DIRECTION_CLEAR));
@@ -262,18 +270,6 @@ uint32_t jz_gpio_port_get_value(int port, uint32_t mask)
}
EXPORT_SYMBOL(jz_gpio_port_get_value);
-int gpio_to_irq(unsigned gpio)
-{
- return JZ4740_IRQ_GPIO(0) + gpio;
-}
-EXPORT_SYMBOL_GPL(gpio_to_irq);
-
-int irq_to_gpio(unsigned irq)
-{
- return irq - JZ4740_IRQ_GPIO(0);
-}
-EXPORT_SYMBOL_GPL(irq_to_gpio);
-
#define IRQ_TO_BIT(irq) BIT(irq_to_gpio(irq) & 0x1f)
static void jz_gpio_check_trigger_both(struct jz_gpio_chip *chip, unsigned int irq)
@@ -296,7 +292,7 @@ static void jz_gpio_check_trigger_both(struct jz_gpio_chip *chip, unsigned int i
writel(mask, reg);
}
-static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
+static void jz_gpio_irq_demux_handler(struct irq_desc *desc)
{
uint32_t flag;
unsigned int gpio_irq;
@@ -403,6 +399,7 @@ static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
.get = jz_gpio_get_value, \
.direction_output = jz_gpio_direction_output, \
.direction_input = jz_gpio_direction_input, \
+ .to_irq = jz_gpio_to_irq, \
.base = JZ4740_GPIO_BASE_ ## _bank, \
.ngpio = JZ4740_GPIO_NUM_ ## _bank, \
}, \
@@ -423,8 +420,8 @@ static void jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
chip->base = ioremap(JZ4740_GPIO_BASE_ADDR + (id * 0x100), 0x100);
chip->irq = JZ4740_IRQ_INTC_GPIO(id);
- irq_set_handler_data(chip->irq, chip);
- irq_set_chained_handler(chip->irq, jz_gpio_irq_demux_handler);
+ irq_set_chained_handler_and_data(chip->irq,
+ jz_gpio_irq_demux_handler, chip);
gc = irq_alloc_generic_chip(chip->gpio_chip.label, 1, chip->irq_base,
chip->base, handle_level_irq);
diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c
index 7ab47fee1..1f7ca2c9f 100644
--- a/arch/mips/jz4740/time.c
+++ b/arch/mips/jz4740/time.c
@@ -58,7 +58,7 @@ static irqreturn_t jz4740_clockevent_irq(int irq, void *devid)
jz4740_timer_ack_full(TIMER_CLOCKEVENT);
- if (cd->mode != CLOCK_EVT_MODE_PERIODIC)
+ if (!clockevent_state_periodic(cd))
jz4740_timer_disable(TIMER_CLOCKEVENT);
cd->event_handler(cd);
@@ -66,24 +66,29 @@ static irqreturn_t jz4740_clockevent_irq(int irq, void *devid)
return IRQ_HANDLED;
}
-static void jz4740_clockevent_set_mode(enum clock_event_mode mode,
- struct clock_event_device *cd)
+static int jz4740_clockevent_set_periodic(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
- jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
- case CLOCK_EVT_MODE_RESUME:
- jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
- jz4740_timer_enable(TIMER_CLOCKEVENT);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_SHUTDOWN:
- jz4740_timer_disable(TIMER_CLOCKEVENT);
- break;
- default:
- break;
- }
+ jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
+ jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
+ jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
+ jz4740_timer_enable(TIMER_CLOCKEVENT);
+
+ return 0;
+}
+
+static int jz4740_clockevent_resume(struct clock_event_device *evt)
+{
+ jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
+ jz4740_timer_enable(TIMER_CLOCKEVENT);
+
+ return 0;
+}
+
+static int jz4740_clockevent_shutdown(struct clock_event_device *evt)
+{
+ jz4740_timer_disable(TIMER_CLOCKEVENT);
+
+ return 0;
}
static int jz4740_clockevent_set_next(unsigned long evt,
@@ -100,7 +105,10 @@ static struct clock_event_device jz4740_clockevent = {
.name = "jz4740-timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_next_event = jz4740_clockevent_set_next,
- .set_mode = jz4740_clockevent_set_mode,
+ .set_state_shutdown = jz4740_clockevent_shutdown,
+ .set_state_periodic = jz4740_clockevent_set_periodic,
+ .set_state_oneshot = jz4740_clockevent_shutdown,
+ .tick_resume = jz4740_clockevent_resume,
.rating = 200,
#ifdef CONFIG_MACH_JZ4740
.irq = JZ4740_IRQ_TCU0,
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 3f5cf8aff..d982be1ea 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -61,7 +61,6 @@ obj-$(CONFIG_MIPS_VPE_APSP_API) += rtlx.o
obj-$(CONFIG_MIPS_VPE_APSP_API_CMP) += rtlx-cmp.o
obj-$(CONFIG_MIPS_VPE_APSP_API_MT) += rtlx-mt.o
-obj-$(CONFIG_I8259) += i8259.o
obj-$(CONFIG_IRQ_CPU_RM7K) += irq-rm7000.o
obj-$(CONFIG_MIPS_MSC) += irq-msc01.o
obj-$(CONFIG_IRQ_TXX9) += irq_txx9.o
@@ -100,6 +99,7 @@ obj-$(CONFIG_PERF_EVENTS) += perf_event.o
obj-$(CONFIG_HW_PERF_EVENTS) += perf_event_mipsxx.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
+obj-$(CONFIG_UPROBES) += uprobes.o
obj-$(CONFIG_MIPS_CM) += mips-cm.o
obj-$(CONFIG_MIPS_CPC) += mips-cpc.o
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 072fab136..154e2039e 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -128,6 +128,7 @@ void output_thread_defines(void)
thread.cp0_baduaddr);
OFFSET(THREAD_ECODE, task_struct, \
thread.error_code);
+ OFFSET(THREAD_TRAPNO, task_struct, thread.trap_nr);
BLANK();
}
@@ -245,17 +246,6 @@ void output_sc_defines(void)
}
#endif
-#ifdef CONFIG_MIPS32_COMPAT
-void output_sc32_defines(void)
-{
- COMMENT("Linux 32-bit sigcontext offsets.");
- OFFSET(SC32_FPREGS, sigcontext32, sc_fpregs);
- OFFSET(SC32_FPC_CSR, sigcontext32, sc_fpc_csr);
- OFFSET(SC32_FPC_EIR, sigcontext32, sc_fpc_eir);
- BLANK();
-}
-#endif
-
void output_signal_defined(void)
{
COMMENT("Linux signal numbers.");
diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
index 797645718..940ac00e9 100644
--- a/arch/mips/kernel/cevt-bcm1480.c
+++ b/arch/mips/kernel/cevt-bcm1480.c
@@ -40,8 +40,8 @@
* The general purpose timer ticks at 1MHz independent if
* the rest of the system
*/
-static void sibyte_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+
+static int sibyte_set_periodic(struct clock_event_device *evt)
{
unsigned int cpu = smp_processor_id();
void __iomem *cfg, *init;
@@ -49,24 +49,22 @@ static void sibyte_set_mode(enum clock_event_mode mode,
cfg = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG));
init = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_INIT));
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- __raw_writeq(0, cfg);
- __raw_writeq((V_SCD_TIMER_FREQ / HZ) - 1, init);
- __raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS,
- cfg);
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- /* Stop the timer until we actually program a shot */
- case CLOCK_EVT_MODE_SHUTDOWN:
- __raw_writeq(0, cfg);
- break;
-
- case CLOCK_EVT_MODE_UNUSED: /* shuddup gcc */
- case CLOCK_EVT_MODE_RESUME:
- ;
- }
+ __raw_writeq(0, cfg);
+ __raw_writeq((V_SCD_TIMER_FREQ / HZ) - 1, init);
+ __raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS, cfg);
+ return 0;
+}
+
+static int sibyte_shutdown(struct clock_event_device *evt)
+{
+ unsigned int cpu = smp_processor_id();
+ void __iomem *cfg;
+
+ cfg = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG));
+
+ /* Stop the timer until we actually program a shot */
+ __raw_writeq(0, cfg);
+ return 0;
}
static int sibyte_next_event(unsigned long delta, struct clock_event_device *cd)
@@ -91,7 +89,7 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
void __iomem *cfg;
unsigned long tmode;
- if (cd->mode == CLOCK_EVT_MODE_PERIODIC)
+ if (clockevent_state_periodic(cd))
tmode = M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS;
else
tmode = 0;
@@ -130,7 +128,9 @@ void sb1480_clockevent_init(void)
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
cd->set_next_event = sibyte_next_event;
- cd->set_mode = sibyte_set_mode;
+ cd->set_state_shutdown = sibyte_shutdown;
+ cd->set_state_periodic = sibyte_set_periodic;
+ cd->set_state_oneshot = sibyte_shutdown;
clockevents_register_device(cd);
bcm1480_mask_irq(cpu, irq);
diff --git a/arch/mips/kernel/cevt-ds1287.c b/arch/mips/kernel/cevt-ds1287.c
index ff1f01b72..77a5ddf53 100644
--- a/arch/mips/kernel/cevt-ds1287.c
+++ b/arch/mips/kernel/cevt-ds1287.c
@@ -59,27 +59,32 @@ static int ds1287_set_next_event(unsigned long delta,
return -EINVAL;
}
-static void ds1287_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int ds1287_shutdown(struct clock_event_device *evt)
{
u8 val;
spin_lock(&rtc_lock);
val = CMOS_READ(RTC_REG_B);
+ val &= ~RTC_PIE;
+ CMOS_WRITE(val, RTC_REG_B);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- val |= RTC_PIE;
- break;
- default:
- val &= ~RTC_PIE;
- break;
- }
+ spin_unlock(&rtc_lock);
+ return 0;
+}
+static int ds1287_set_periodic(struct clock_event_device *evt)
+{
+ u8 val;
+
+ spin_lock(&rtc_lock);
+
+ val = CMOS_READ(RTC_REG_B);
+ val |= RTC_PIE;
CMOS_WRITE(val, RTC_REG_B);
spin_unlock(&rtc_lock);
+ return 0;
}
static void ds1287_event_handler(struct clock_event_device *dev)
@@ -87,11 +92,13 @@ static void ds1287_event_handler(struct clock_event_device *dev)
}
static struct clock_event_device ds1287_clockevent = {
- .name = "ds1287",
- .features = CLOCK_EVT_FEAT_PERIODIC,
- .set_next_event = ds1287_set_next_event,
- .set_mode = ds1287_set_mode,
- .event_handler = ds1287_event_handler,
+ .name = "ds1287",
+ .features = CLOCK_EVT_FEAT_PERIODIC,
+ .set_next_event = ds1287_set_next_event,
+ .set_state_shutdown = ds1287_shutdown,
+ .set_state_periodic = ds1287_set_periodic,
+ .tick_resume = ds1287_shutdown,
+ .event_handler = ds1287_event_handler,
};
static irqreturn_t ds1287_interrupt(int irq, void *dev_id)
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c
index f06946075..660400511 100644
--- a/arch/mips/kernel/cevt-gt641xx.c
+++ b/arch/mips/kernel/cevt-gt641xx.c
@@ -64,8 +64,7 @@ static int gt641xx_timer0_set_next_event(unsigned long delta,
return 0;
}
-static void gt641xx_timer0_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int gt641xx_timer0_shutdown(struct clock_event_device *evt)
{
u32 ctrl;
@@ -73,21 +72,39 @@ static void gt641xx_timer0_set_mode(enum clock_event_mode mode,
ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl &= ~(GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
+ GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
+
+ raw_spin_unlock(&gt641xx_timer_lock);
+ return 0;
+}
+
+static int gt641xx_timer0_set_oneshot(struct clock_event_device *evt)
+{
+ u32 ctrl;
+
+ raw_spin_lock(&gt641xx_timer_lock);
+
+ ctrl = GT_READ(GT_TC_CONTROL_OFS);
+ ctrl &= ~GT_TC_CONTROL_SELTC0_MSK;
+ ctrl |= GT_TC_CONTROL_ENTC0_MSK;
+ GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
+
+ raw_spin_unlock(&gt641xx_timer_lock);
+ return 0;
+}
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- ctrl |= GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK;
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- ctrl |= GT_TC_CONTROL_ENTC0_MSK;
- break;
- default:
- break;
- }
+static int gt641xx_timer0_set_periodic(struct clock_event_device *evt)
+{
+ u32 ctrl;
+
+ raw_spin_lock(&gt641xx_timer_lock);
+ ctrl = GT_READ(GT_TC_CONTROL_OFS);
+ ctrl |= GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK;
GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
raw_spin_unlock(&gt641xx_timer_lock);
+ return 0;
}
static void gt641xx_timer0_event_handler(struct clock_event_device *dev)
@@ -95,12 +112,16 @@ static void gt641xx_timer0_event_handler(struct clock_event_device *dev)
}
static struct clock_event_device gt641xx_timer0_clockevent = {
- .name = "gt641xx-timer0",
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .irq = GT641XX_TIMER0_IRQ,
- .set_next_event = gt641xx_timer0_set_next_event,
- .set_mode = gt641xx_timer0_set_mode,
- .event_handler = gt641xx_timer0_event_handler,
+ .name = "gt641xx-timer0",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .irq = GT641XX_TIMER0_IRQ,
+ .set_next_event = gt641xx_timer0_set_next_event,
+ .set_state_shutdown = gt641xx_timer0_shutdown,
+ .set_state_periodic = gt641xx_timer0_set_periodic,
+ .set_state_oneshot = gt641xx_timer0_set_oneshot,
+ .tick_resume = gt641xx_timer0_shutdown,
+ .event_handler = gt641xx_timer0_event_handler,
};
static irqreturn_t gt641xx_timer0_interrupt(int irq, void *dev_id)
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index d70c4d893..8dfe6a6e1 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -28,12 +28,6 @@ static int mips_next_event(unsigned long delta,
return res;
}
-void mips_set_clock_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- /* Nothing to do ... */
-}
-
DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
int cp0_timer_irq_installed;
@@ -174,6 +168,11 @@ int c0_compare_int_usable(void)
return 1;
}
+unsigned int __weak get_c0_compare_int(void)
+{
+ return MIPS_CPU_IRQ_BASE + cp0_compare_irq;
+}
+
int r4k_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
@@ -189,11 +188,9 @@ int r4k_clockevent_init(void)
/*
* With vectored interrupts things are getting platform specific.
* get_c0_compare_int is a hook to allow a platform to return the
- * interrupt number of it's liking.
+ * interrupt number of its liking.
*/
- irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
- if (get_c0_compare_int)
- irq = get_c0_compare_int();
+ irq = get_c0_compare_int();
cd = &per_cpu(mips_clockevent_device, cpu);
@@ -212,7 +209,6 @@ int r4k_clockevent_init(void)
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
cd->set_next_event = mips_next_event;
- cd->set_mode = mips_set_clock_mode;
cd->event_handler = mips_event_handler;
clockevents_register_device(cd);
diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c
index 5ea6d6b1d..3d860efd6 100644
--- a/arch/mips/kernel/cevt-sb1250.c
+++ b/arch/mips/kernel/cevt-sb1250.c
@@ -38,8 +38,20 @@
* The general purpose timer ticks at 1MHz independent if
* the rest of the system
*/
-static void sibyte_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+
+static int sibyte_shutdown(struct clock_event_device *evt)
+{
+ void __iomem *cfg;
+
+ cfg = IOADDR(A_SCD_TIMER_REGISTER(smp_processor_id(), R_SCD_TIMER_CFG));
+
+ /* Stop the timer until we actually program a shot */
+ __raw_writeq(0, cfg);
+
+ return 0;
+}
+
+static int sibyte_set_periodic(struct clock_event_device *evt)
{
unsigned int cpu = smp_processor_id();
void __iomem *cfg, *init;
@@ -47,24 +59,11 @@ static void sibyte_set_mode(enum clock_event_mode mode,
cfg = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG));
init = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_INIT));
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- __raw_writeq(0, cfg);
- __raw_writeq((V_SCD_TIMER_FREQ / HZ) - 1, init);
- __raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS,
- cfg);
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- /* Stop the timer until we actually program a shot */
- case CLOCK_EVT_MODE_SHUTDOWN:
- __raw_writeq(0, cfg);
- break;
-
- case CLOCK_EVT_MODE_UNUSED: /* shuddup gcc */
- case CLOCK_EVT_MODE_RESUME:
- ;
- }
+ __raw_writeq(0, cfg);
+ __raw_writeq((V_SCD_TIMER_FREQ / HZ) - 1, init);
+ __raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS, cfg);
+
+ return 0;
}
static int sibyte_next_event(unsigned long delta, struct clock_event_device *cd)
@@ -89,7 +88,7 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
void __iomem *cfg;
unsigned long tmode;
- if (cd->mode == CLOCK_EVT_MODE_PERIODIC)
+ if (clockevent_state_periodic(cd))
tmode = M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS;
else
tmode = 0;
@@ -129,7 +128,9 @@ void sb1250_clockevent_init(void)
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
cd->set_next_event = sibyte_next_event;
- cd->set_mode = sibyte_set_mode;
+ cd->set_state_shutdown = sibyte_shutdown;
+ cd->set_state_periodic = sibyte_set_periodic;
+ cd->set_state_oneshot = sibyte_shutdown;
clockevents_register_device(cd);
sb1250_mask_irq(cpu, irq);
diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c
index 723932441..537eefdf8 100644
--- a/arch/mips/kernel/cevt-txx9.c
+++ b/arch/mips/kernel/cevt-txx9.c
@@ -85,36 +85,54 @@ static void txx9tmr_stop_and_clear(struct txx9_tmr_reg __iomem *tmrptr)
__raw_writel(0, &tmrptr->tisr);
}
-static void txx9tmr_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int txx9tmr_set_state_periodic(struct clock_event_device *evt)
{
struct txx9_clock_event_device *txx9_cd =
container_of(evt, struct txx9_clock_event_device, cd);
struct txx9_tmr_reg __iomem *tmrptr = txx9_cd->tmrptr;
txx9tmr_stop_and_clear(tmrptr);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- __raw_writel(TXx9_TMITMR_TIIE | TXx9_TMITMR_TZCE,
- &tmrptr->itmr);
- /* start timer */
- __raw_writel(((u64)(NSEC_PER_SEC / HZ) * evt->mult) >>
- evt->shift,
- &tmrptr->cpra);
- __raw_writel(TCR_BASE | TXx9_TMTCR_TCE, &tmrptr->tcr);
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- __raw_writel(0, &tmrptr->itmr);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- __raw_writel(TXx9_TMITMR_TIIE, &tmrptr->itmr);
- break;
- case CLOCK_EVT_MODE_RESUME:
- __raw_writel(TIMER_CCD, &tmrptr->ccdr);
- __raw_writel(0, &tmrptr->itmr);
- break;
- }
+
+ __raw_writel(TXx9_TMITMR_TIIE | TXx9_TMITMR_TZCE, &tmrptr->itmr);
+ /* start timer */
+ __raw_writel(((u64)(NSEC_PER_SEC / HZ) * evt->mult) >> evt->shift,
+ &tmrptr->cpra);
+ __raw_writel(TCR_BASE | TXx9_TMTCR_TCE, &tmrptr->tcr);
+ return 0;
+}
+
+static int txx9tmr_set_state_oneshot(struct clock_event_device *evt)
+{
+ struct txx9_clock_event_device *txx9_cd =
+ container_of(evt, struct txx9_clock_event_device, cd);
+ struct txx9_tmr_reg __iomem *tmrptr = txx9_cd->tmrptr;
+
+ txx9tmr_stop_and_clear(tmrptr);
+ __raw_writel(TXx9_TMITMR_TIIE, &tmrptr->itmr);
+ return 0;
+}
+
+static int txx9tmr_set_state_shutdown(struct clock_event_device *evt)
+{
+ struct txx9_clock_event_device *txx9_cd =
+ container_of(evt, struct txx9_clock_event_device, cd);
+ struct txx9_tmr_reg __iomem *tmrptr = txx9_cd->tmrptr;
+
+ txx9tmr_stop_and_clear(tmrptr);
+ __raw_writel(0, &tmrptr->itmr);
+ return 0;
+}
+
+static int txx9tmr_tick_resume(struct clock_event_device *evt)
+{
+ struct txx9_clock_event_device *txx9_cd =
+ container_of(evt, struct txx9_clock_event_device, cd);
+ struct txx9_tmr_reg __iomem *tmrptr = txx9_cd->tmrptr;
+
+ txx9tmr_stop_and_clear(tmrptr);
+ __raw_writel(TIMER_CCD, &tmrptr->ccdr);
+ __raw_writel(0, &tmrptr->itmr);
+ return 0;
}
static int txx9tmr_set_next_event(unsigned long delta,
@@ -133,12 +151,15 @@ static int txx9tmr_set_next_event(unsigned long delta,
static struct txx9_clock_event_device txx9_clock_event_device = {
.cd = {
- .name = "TXx9",
- .features = CLOCK_EVT_FEAT_PERIODIC |
- CLOCK_EVT_FEAT_ONESHOT,
- .rating = 200,
- .set_mode = txx9tmr_set_mode,
- .set_next_event = txx9tmr_set_next_event,
+ .name = "TXx9",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .rating = 200,
+ .set_state_shutdown = txx9tmr_set_state_shutdown,
+ .set_state_periodic = txx9tmr_set_state_periodic,
+ .set_state_oneshot = txx9tmr_set_state_oneshot,
+ .tick_resume = txx9tmr_tick_resume,
+ .set_next_event = txx9tmr_set_next_event,
},
};
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index dbe0792fc..09a51d091 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -32,6 +32,9 @@
#include <asm/spram.h>
#include <asm/uaccess.h>
+/* Hardware capabilities */
+unsigned int elf_hwcap __read_mostly;
+
/*
* Get the FPU Implementation/Revision.
*/
@@ -188,7 +191,7 @@ __setup("nohtw", htw_disable);
static int mips_ftlb_disabled;
static int mips_has_ftlb_configured;
-static void set_ftlb_enable(struct cpuinfo_mips *c, int enable);
+static int set_ftlb_enable(struct cpuinfo_mips *c, int enable);
static int __init ftlb_disable(char *s)
{
@@ -202,7 +205,10 @@ static int __init ftlb_disable(char *s)
return 1;
/* Disable it in the boot cpu */
- set_ftlb_enable(&cpu_data[0], 0);
+ if (set_ftlb_enable(&cpu_data[0], 0)) {
+ pr_warn("Can't turn FTLB off\n");
+ return 1;
+ }
back_to_back_c0_hazard();
@@ -364,45 +370,58 @@ static unsigned int calculate_ftlb_probability(struct cpuinfo_mips *c)
return 3;
}
-static void set_ftlb_enable(struct cpuinfo_mips *c, int enable)
+static int set_ftlb_enable(struct cpuinfo_mips *c, int enable)
{
- unsigned int config6;
+ unsigned int config;
/* It's implementation dependent how the FTLB can be enabled */
switch (c->cputype) {
case CPU_PROAPTIV:
case CPU_P5600:
/* proAptiv & related cores use Config6 to enable the FTLB */
- config6 = read_c0_config6();
+ config = read_c0_config6();
/* Clear the old probability value */
- config6 &= ~(3 << MIPS_CONF6_FTLBP_SHIFT);
+ config &= ~(3 << MIPS_CONF6_FTLBP_SHIFT);
if (enable)
/* Enable FTLB */
- write_c0_config6(config6 |
+ write_c0_config6(config |
(calculate_ftlb_probability(c)
<< MIPS_CONF6_FTLBP_SHIFT)
| MIPS_CONF6_FTLBEN);
else
/* Disable FTLB */
- write_c0_config6(config6 & ~MIPS_CONF6_FTLBEN);
- back_to_back_c0_hazard();
+ write_c0_config6(config & ~MIPS_CONF6_FTLBEN);
break;
+ case CPU_I6400:
+ /* I6400 & related cores use Config7 to configure FTLB */
+ config = read_c0_config7();
+ /* Clear the old probability value */
+ config &= ~(3 << MIPS_CONF7_FTLBP_SHIFT);
+ write_c0_config7(config | (calculate_ftlb_probability(c)
+ << MIPS_CONF7_FTLBP_SHIFT));
+ break;
+ default:
+ return 1;
}
+
+ return 0;
}
static inline unsigned int decode_config0(struct cpuinfo_mips *c)
{
unsigned int config0;
- int isa;
+ int isa, mt;
config0 = read_c0_config();
/*
* Look for Standard TLB or Dual VTLB and FTLB
*/
- if ((((config0 & MIPS_CONF_MT) >> 7) == 1) ||
- (((config0 & MIPS_CONF_MT) >> 7) == 4))
+ mt = config0 & MIPS_CONF_MT;
+ if (mt == MIPS_CONF_MT_TLB)
c->options |= MIPS_CPU_TLB;
+ else if (mt == MIPS_CONF_MT_FTLB)
+ c->options |= MIPS_CPU_TLB | MIPS_CPU_FTLB;
isa = (config0 & MIPS_CONF_AT) >> 13;
switch (isa) {
@@ -524,6 +543,8 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
}
if (config3 & MIPS_CONF3_CDMM)
c->options |= MIPS_CPU_CDMM;
+ if (config3 & MIPS_CONF3_SP)
+ c->options |= MIPS_CPU_SP;
return config3 & MIPS_CONF_M;
}
@@ -540,7 +561,19 @@ static inline unsigned int decode_config4(struct cpuinfo_mips *c)
if (cpu_has_tlb) {
if (((config4 & MIPS_CONF4_IE) >> 29) == 2)
c->options |= MIPS_CPU_TLBINV;
- mmuextdef = config4 & MIPS_CONF4_MMUEXTDEF;
+
+ /*
+ * R6 has dropped the MMUExtDef field from config4.
+ * On R6 the fields always describe the FTLB, and only if it is
+ * present according to Config.MT.
+ */
+ if (!cpu_has_mips_r6)
+ mmuextdef = config4 & MIPS_CONF4_MMUEXTDEF;
+ else if (cpu_has_ftlb)
+ mmuextdef = MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT;
+ else
+ mmuextdef = 0;
+
switch (mmuextdef) {
case MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT:
c->tlbsize += (config4 & MIPS_CONF4_MMUSIZEEXT) * 0x40;
@@ -1121,6 +1154,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
c->cputype = CPU_P5600;
__cpu_name[cpu] = "MIPS P5600";
break;
+ case PRID_IMP_I6400:
+ c->cputype = CPU_I6400;
+ __cpu_name[cpu] = "MIPS I6400";
+ break;
case PRID_IMP_M5150:
c->cputype = CPU_M5150;
__cpu_name[cpu] = "MIPS M5150";
@@ -1492,10 +1529,14 @@ void cpu_probe(void)
else
c->srsets = 1;
+ if (cpu_has_mips_r6)
+ elf_hwcap |= HWCAP_MIPS_R6;
+
if (cpu_has_msa) {
c->msa_id = cpu_get_msa_id();
WARN(c->msa_id & MSA_IR_WRPF,
"Vector register partitioning unimplemented!");
+ elf_hwcap |= HWCAP_MIPS_MSA;
}
cpu_probe_vmbits(c);
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
deleted file mode 100644
index 74f675281..000000000
--- a/arch/mips/kernel/i8259.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Code to handle x86 style IRQs plus some generic interrupt stuff.
- *
- * Copyright (C) 1992 Linus Torvalds
- * Copyright (C) 1994 - 2000 Ralf Baechle
- */
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/kernel.h>
-#include <linux/of_irq.h>
-#include <linux/spinlock.h>
-#include <linux/syscore_ops.h>
-#include <linux/irq.h>
-
-#include <asm/i8259.h>
-#include <asm/io.h>
-
-#include "../../drivers/irqchip/irqchip.h"
-
-/*
- * This is the 'legacy' 8259A Programmable Interrupt Controller,
- * present in the majority of PC/AT boxes.
- * plus some generic x86 specific things if generic specifics makes
- * any sense at all.
- * this file should become arch/i386/kernel/irq.c when the old irq.c
- * moves to arch independent land
- */
-
-static int i8259A_auto_eoi = -1;
-DEFINE_RAW_SPINLOCK(i8259A_lock);
-static void disable_8259A_irq(struct irq_data *d);
-static void enable_8259A_irq(struct irq_data *d);
-static void mask_and_ack_8259A(struct irq_data *d);
-static void init_8259A(int auto_eoi);
-
-static struct irq_chip i8259A_chip = {
- .name = "XT-PIC",
- .irq_mask = disable_8259A_irq,
- .irq_disable = disable_8259A_irq,
- .irq_unmask = enable_8259A_irq,
- .irq_mask_ack = mask_and_ack_8259A,
-};
-
-/*
- * 8259A PIC functions to handle ISA devices:
- */
-
-/*
- * This contains the irq mask for both 8259A irq controllers,
- */
-static unsigned int cached_irq_mask = 0xffff;
-
-#define cached_master_mask (cached_irq_mask)
-#define cached_slave_mask (cached_irq_mask >> 8)
-
-static void disable_8259A_irq(struct irq_data *d)
-{
- unsigned int mask, irq = d->irq - I8259A_IRQ_BASE;
- unsigned long flags;
-
- mask = 1 << irq;
- raw_spin_lock_irqsave(&i8259A_lock, flags);
- cached_irq_mask |= mask;
- if (irq & 8)
- outb(cached_slave_mask, PIC_SLAVE_IMR);
- else
- outb(cached_master_mask, PIC_MASTER_IMR);
- raw_spin_unlock_irqrestore(&i8259A_lock, flags);
-}
-
-static void enable_8259A_irq(struct irq_data *d)
-{
- unsigned int mask, irq = d->irq - I8259A_IRQ_BASE;
- unsigned long flags;
-
- mask = ~(1 << irq);
- raw_spin_lock_irqsave(&i8259A_lock, flags);
- cached_irq_mask &= mask;
- if (irq & 8)
- outb(cached_slave_mask, PIC_SLAVE_IMR);
- else
- outb(cached_master_mask, PIC_MASTER_IMR);
- raw_spin_unlock_irqrestore(&i8259A_lock, flags);
-}
-
-int i8259A_irq_pending(unsigned int irq)
-{
- unsigned int mask;
- unsigned long flags;
- int ret;
-
- irq -= I8259A_IRQ_BASE;
- mask = 1 << irq;
- raw_spin_lock_irqsave(&i8259A_lock, flags);
- if (irq < 8)
- ret = inb(PIC_MASTER_CMD) & mask;
- else
- ret = inb(PIC_SLAVE_CMD) & (mask >> 8);
- raw_spin_unlock_irqrestore(&i8259A_lock, flags);
-
- return ret;
-}
-
-void make_8259A_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
- enable_irq(irq);
-}
-
-/*
- * This function assumes to be called rarely. Switching between
- * 8259A registers is slow.
- * This has to be protected by the irq controller spinlock
- * before being called.
- */
-static inline int i8259A_irq_real(unsigned int irq)
-{
- int value;
- int irqmask = 1 << irq;
-
- if (irq < 8) {
- outb(0x0B, PIC_MASTER_CMD); /* ISR register */
- value = inb(PIC_MASTER_CMD) & irqmask;
- outb(0x0A, PIC_MASTER_CMD); /* back to the IRR register */
- return value;
- }
- outb(0x0B, PIC_SLAVE_CMD); /* ISR register */
- value = inb(PIC_SLAVE_CMD) & (irqmask >> 8);
- outb(0x0A, PIC_SLAVE_CMD); /* back to the IRR register */
- return value;
-}
-
-/*
- * Careful! The 8259A is a fragile beast, it pretty
- * much _has_ to be done exactly like this (mask it
- * first, _then_ send the EOI, and the order of EOI
- * to the two 8259s is important!
- */
-static void mask_and_ack_8259A(struct irq_data *d)
-{
- unsigned int irqmask, irq = d->irq - I8259A_IRQ_BASE;
- unsigned long flags;
-
- irqmask = 1 << irq;
- raw_spin_lock_irqsave(&i8259A_lock, flags);
- /*
- * Lightweight spurious IRQ detection. We do not want
- * to overdo spurious IRQ handling - it's usually a sign
- * of hardware problems, so we only do the checks we can
- * do without slowing down good hardware unnecessarily.
- *
- * Note that IRQ7 and IRQ15 (the two spurious IRQs
- * usually resulting from the 8259A-1|2 PICs) occur
- * even if the IRQ is masked in the 8259A. Thus we
- * can check spurious 8259A IRQs without doing the
- * quite slow i8259A_irq_real() call for every IRQ.
- * This does not cover 100% of spurious interrupts,
- * but should be enough to warn the user that there
- * is something bad going on ...
- */
- if (cached_irq_mask & irqmask)
- goto spurious_8259A_irq;
- cached_irq_mask |= irqmask;
-
-handle_real_irq:
- if (irq & 8) {
- inb(PIC_SLAVE_IMR); /* DUMMY - (do we need this?) */
- outb(cached_slave_mask, PIC_SLAVE_IMR);
- outb(0x60+(irq&7), PIC_SLAVE_CMD);/* 'Specific EOI' to slave */
- outb(0x60+PIC_CASCADE_IR, PIC_MASTER_CMD); /* 'Specific EOI' to master-IRQ2 */
- } else {
- inb(PIC_MASTER_IMR); /* DUMMY - (do we need this?) */
- outb(cached_master_mask, PIC_MASTER_IMR);
- outb(0x60+irq, PIC_MASTER_CMD); /* 'Specific EOI to master */
- }
- raw_spin_unlock_irqrestore(&i8259A_lock, flags);
- return;
-
-spurious_8259A_irq:
- /*
- * this is the slow path - should happen rarely.
- */
- if (i8259A_irq_real(irq))
- /*
- * oops, the IRQ _is_ in service according to the
- * 8259A - not spurious, go handle it.
- */
- goto handle_real_irq;
-
- {
- static int spurious_irq_mask;
- /*
- * At this point we can be sure the IRQ is spurious,
- * lets ACK and report it. [once per IRQ]
- */
- if (!(spurious_irq_mask & irqmask)) {
- printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
- spurious_irq_mask |= irqmask;
- }
- atomic_inc(&irq_err_count);
- /*
- * Theoretically we do not have to handle this IRQ,
- * but in Linux this does not cause problems and is
- * simpler for us.
- */
- goto handle_real_irq;
- }
-}
-
-static void i8259A_resume(void)
-{
- if (i8259A_auto_eoi >= 0)
- init_8259A(i8259A_auto_eoi);
-}
-
-static void i8259A_shutdown(void)
-{
- /* Put the i8259A into a quiescent state that
- * the kernel initialization code can get it
- * out of.
- */
- if (i8259A_auto_eoi >= 0) {
- outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */
- outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-2 */
- }
-}
-
-static struct syscore_ops i8259_syscore_ops = {
- .resume = i8259A_resume,
- .shutdown = i8259A_shutdown,
-};
-
-static int __init i8259A_init_sysfs(void)
-{
- register_syscore_ops(&i8259_syscore_ops);
- return 0;
-}
-
-device_initcall(i8259A_init_sysfs);
-
-static void init_8259A(int auto_eoi)
-{
- unsigned long flags;
-
- i8259A_auto_eoi = auto_eoi;
-
- raw_spin_lock_irqsave(&i8259A_lock, flags);
-
- outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */
- outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-2 */
-
- /*
- * outb_p - this has to work on a wide range of PC hardware.
- */
- outb_p(0x11, PIC_MASTER_CMD); /* ICW1: select 8259A-1 init */
- outb_p(I8259A_IRQ_BASE + 0, PIC_MASTER_IMR); /* ICW2: 8259A-1 IR0 mapped to I8259A_IRQ_BASE + 0x00 */
- outb_p(1U << PIC_CASCADE_IR, PIC_MASTER_IMR); /* 8259A-1 (the master) has a slave on IR2 */
- if (auto_eoi) /* master does Auto EOI */
- outb_p(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
- else /* master expects normal EOI */
- outb_p(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
-
- outb_p(0x11, PIC_SLAVE_CMD); /* ICW1: select 8259A-2 init */
- outb_p(I8259A_IRQ_BASE + 8, PIC_SLAVE_IMR); /* ICW2: 8259A-2 IR0 mapped to I8259A_IRQ_BASE + 0x08 */
- outb_p(PIC_CASCADE_IR, PIC_SLAVE_IMR); /* 8259A-2 is a slave on master's IR2 */
- outb_p(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR); /* (slave's support for AEOI in flat mode is to be investigated) */
- if (auto_eoi)
- /*
- * In AEOI mode we just have to mask the interrupt
- * when acking.
- */
- i8259A_chip.irq_mask_ack = disable_8259A_irq;
- else
- i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
-
- udelay(100); /* wait for 8259A to initialize */
-
- outb(cached_master_mask, PIC_MASTER_IMR); /* restore master IRQ mask */
- outb(cached_slave_mask, PIC_SLAVE_IMR); /* restore slave IRQ mask */
-
- raw_spin_unlock_irqrestore(&i8259A_lock, flags);
-}
-
-/*
- * IRQ2 is cascade interrupt to second interrupt controller
- */
-static struct irqaction irq2 = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct resource pic1_io_resource = {
- .name = "pic1",
- .start = PIC_MASTER_CMD,
- .end = PIC_MASTER_IMR,
- .flags = IORESOURCE_BUSY
-};
-
-static struct resource pic2_io_resource = {
- .name = "pic2",
- .start = PIC_SLAVE_CMD,
- .end = PIC_SLAVE_IMR,
- .flags = IORESOURCE_BUSY
-};
-
-static int i8259A_irq_domain_map(struct irq_domain *d, unsigned int virq,
- irq_hw_number_t hw)
-{
- irq_set_chip_and_handler(virq, &i8259A_chip, handle_level_irq);
- irq_set_probe(virq);
- return 0;
-}
-
-static struct irq_domain_ops i8259A_ops = {
- .map = i8259A_irq_domain_map,
- .xlate = irq_domain_xlate_onecell,
-};
-
-/*
- * On systems with i8259-style interrupt controllers we assume for
- * driver compatibility reasons interrupts 0 - 15 to be the i8259
- * interrupts even if the hardware uses a different interrupt numbering.
- */
-struct irq_domain * __init __init_i8259_irqs(struct device_node *node)
-{
- struct irq_domain *domain;
-
- insert_resource(&ioport_resource, &pic1_io_resource);
- insert_resource(&ioport_resource, &pic2_io_resource);
-
- init_8259A(0);
-
- domain = irq_domain_add_legacy(node, 16, I8259A_IRQ_BASE, 0,
- &i8259A_ops, NULL);
- if (!domain)
- panic("Failed to add i8259 IRQ domain");
-
- setup_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, &irq2);
- return domain;
-}
-
-void __init init_i8259_irqs(void)
-{
- __init_i8259_irqs(NULL);
-}
-
-static void i8259_irq_dispatch(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_domain *domain = irq_get_handler_data(irq);
- int hwirq = i8259_irq();
-
- if (hwirq < 0)
- return;
-
- irq = irq_linear_revmap(domain, hwirq);
- generic_handle_irq(irq);
-}
-
-int __init i8259_of_init(struct device_node *node, struct device_node *parent)
-{
- struct irq_domain *domain;
- unsigned int parent_irq;
-
- parent_irq = irq_of_parse_and_map(node, 0);
- if (!parent_irq) {
- pr_err("Failed to map i8259 parent IRQ\n");
- return -ENODEV;
- }
-
- domain = __init_i8259_irqs(node);
- irq_set_handler_data(parent_irq, domain);
- irq_set_chained_handler(parent_irq, i8259_irq_dispatch);
- return 0;
-}
-IRQCHIP_DECLARE(i8259, "intel,i8259", i8259_of_init);
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index e4f62b787..ab1478d5a 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -196,6 +196,7 @@ void __init check_wait(void)
case CPU_INTERAPTIV:
case CPU_M5150:
case CPU_QEMU_GENERIC:
+ case CPU_I6400:
cpu_wait = r4k_wait;
if (read_c0_config7() & MIPS_CONF7_WII)
cpu_wait = r4k_wait_irqoff;
diff --git a/arch/mips/kernel/jump_label.c b/arch/mips/kernel/jump_label.c
index dda800e9e..3e586daa3 100644
--- a/arch/mips/kernel/jump_label.c
+++ b/arch/mips/kernel/jump_label.c
@@ -51,7 +51,7 @@ void arch_jump_label_transform(struct jump_entry *e,
/* Target must have the right alignment and ISA must be preserved. */
BUG_ON((e->target & J_ALIGN_MASK) != J_ISA_BIT);
- if (type == JUMP_LABEL_ENABLE) {
+ if (type == JUMP_LABEL_JMP) {
insn.j_format.opcode = J_ISA_BIT ? mm_j32_op : j_op;
insn.j_format.target = e->target >> J_RANGE_SHIFT;
} else {
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 85bbe9b96..b8ceee576 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -15,11 +15,131 @@
void __iomem *mips_cm_base;
void __iomem *mips_cm_l2sync_base;
+int mips_cm_is64;
+
+static char *cm2_tr[8] = {
+ "mem", "gcr", "gic", "mmio",
+ "0x04", "cpc", "0x06", "0x07"
+};
+
+/* CM3 Tag ECC transation type */
+static char *cm3_tr[16] = {
+ [0x0] = "ReqNoData",
+ [0x1] = "0x1",
+ [0x2] = "ReqWData",
+ [0x3] = "0x3",
+ [0x4] = "IReqNoResp",
+ [0x5] = "IReqWResp",
+ [0x6] = "IReqNoRespDat",
+ [0x7] = "IReqWRespDat",
+ [0x8] = "RespNoData",
+ [0x9] = "RespDataFol",
+ [0xa] = "RespWData",
+ [0xb] = "RespDataOnly",
+ [0xc] = "IRespNoData",
+ [0xd] = "IRespDataFol",
+ [0xe] = "IRespWData",
+ [0xf] = "IRespDataOnly"
+};
+
+static char *cm2_cmd[32] = {
+ [0x00] = "0x00",
+ [0x01] = "Legacy Write",
+ [0x02] = "Legacy Read",
+ [0x03] = "0x03",
+ [0x04] = "0x04",
+ [0x05] = "0x05",
+ [0x06] = "0x06",
+ [0x07] = "0x07",
+ [0x08] = "Coherent Read Own",
+ [0x09] = "Coherent Read Share",
+ [0x0a] = "Coherent Read Discard",
+ [0x0b] = "Coherent Ready Share Always",
+ [0x0c] = "Coherent Upgrade",
+ [0x0d] = "Coherent Writeback",
+ [0x0e] = "0x0e",
+ [0x0f] = "0x0f",
+ [0x10] = "Coherent Copyback",
+ [0x11] = "Coherent Copyback Invalidate",
+ [0x12] = "Coherent Invalidate",
+ [0x13] = "Coherent Write Invalidate",
+ [0x14] = "Coherent Completion Sync",
+ [0x15] = "0x15",
+ [0x16] = "0x16",
+ [0x17] = "0x17",
+ [0x18] = "0x18",
+ [0x19] = "0x19",
+ [0x1a] = "0x1a",
+ [0x1b] = "0x1b",
+ [0x1c] = "0x1c",
+ [0x1d] = "0x1d",
+ [0x1e] = "0x1e",
+ [0x1f] = "0x1f"
+};
+
+/* CM3 Tag ECC command type */
+static char *cm3_cmd[16] = {
+ [0x0] = "Legacy Read",
+ [0x1] = "Legacy Write",
+ [0x2] = "Coherent Read Own",
+ [0x3] = "Coherent Read Share",
+ [0x4] = "Coherent Read Discard",
+ [0x5] = "Coherent Evicted",
+ [0x6] = "Coherent Upgrade",
+ [0x7] = "Coherent Upgrade for Store Conditional",
+ [0x8] = "Coherent Writeback",
+ [0x9] = "Coherent Write Invalidate",
+ [0xa] = "0xa",
+ [0xb] = "0xb",
+ [0xc] = "0xc",
+ [0xd] = "0xd",
+ [0xe] = "0xe",
+ [0xf] = "0xf"
+};
+
+/* CM3 Tag ECC command group */
+static char *cm3_cmd_group[8] = {
+ [0x0] = "Normal",
+ [0x1] = "Registers",
+ [0x2] = "TLB",
+ [0x3] = "0x3",
+ [0x4] = "L1I",
+ [0x5] = "L1D",
+ [0x6] = "L3",
+ [0x7] = "L2"
+};
+
+static char *cm2_core[8] = {
+ "Invalid/OK", "Invalid/Data",
+ "Shared/OK", "Shared/Data",
+ "Modified/OK", "Modified/Data",
+ "Exclusive/OK", "Exclusive/Data"
+};
+
+static char *cm2_causes[32] = {
+ "None", "GC_WR_ERR", "GC_RD_ERR", "COH_WR_ERR",
+ "COH_RD_ERR", "MMIO_WR_ERR", "MMIO_RD_ERR", "0x07",
+ "0x08", "0x09", "0x0a", "0x0b",
+ "0x0c", "0x0d", "0x0e", "0x0f",
+ "0x10", "0x11", "0x12", "0x13",
+ "0x14", "0x15", "0x16", "INTVN_WR_ERR",
+ "INTVN_RD_ERR", "0x19", "0x1a", "0x1b",
+ "0x1c", "0x1d", "0x1e", "0x1f"
+};
+
+static char *cm3_causes[32] = {
+ "0x0", "MP_CORRECTABLE_ECC_ERR", "MP_REQUEST_DECODE_ERR",
+ "MP_UNCORRECTABLE_ECC_ERR", "MP_PARITY_ERR", "MP_COHERENCE_ERR",
+ "CMBIU_REQUEST_DECODE_ERR", "CMBIU_PARITY_ERR", "CMBIU_AXI_RESP_ERR",
+ "0x9", "RBI_BUS_ERR", "0xb", "0xc", "0xd", "0xe", "0xf", "0x10",
+ "0x11", "0x12", "0x13", "0x14", "0x15", "0x16", "0x17", "0x18",
+ "0x19", "0x1a", "0x1b", "0x1c", "0x1d", "0x1e", "0x1f"
+};
phys_addr_t __mips_cm_phys_base(void)
{
u32 config3 = read_c0_config3();
- u32 cmgcr;
+ unsigned long cmgcr;
/* Check the CMGCRBase register is implemented */
if (!(config3 & MIPS_CONF3_CMGCR))
@@ -81,6 +201,13 @@ int mips_cm_probe(void)
phys_addr_t addr;
u32 base_reg;
+ /*
+ * No need to probe again if we have already been
+ * here before.
+ */
+ if (mips_cm_base)
+ return 0;
+
addr = mips_cm_phys_base();
BUG_ON((addr & CM_GCR_BASE_GCRBASE_MSK) != addr);
if (!addr)
@@ -117,5 +244,133 @@ int mips_cm_probe(void)
/* probe for an L2-only sync region */
mips_cm_probe_l2sync();
+ /* determine register width for this CM */
+ mips_cm_is64 = config_enabled(CONFIG_64BIT) && (mips_cm_revision() >= CM_REV_CM3);
+
return 0;
}
+
+void mips_cm_error_report(void)
+{
+ unsigned long revision = mips_cm_revision();
+ /*
+ * CM3 has a 64-bit Error cause register with 0:57 containing the error
+ * info and 63:58 the error type. For old CMs, everything is contained
+ * in a single 32-bit register (0:26 and 31:27 respectively). Even
+ * though the cm_error is u64, we will simply ignore the upper word
+ * for CM2.
+ */
+ u64 cm_error = read_gcr_error_cause();
+ int cm_error_cause_sft = CM_GCR_ERROR_CAUSE_ERRTYPE_SHF +
+ ((revision >= CM_REV_CM3) ? 31 : 0);
+ unsigned long cm_addr = read_gcr_error_addr();
+ unsigned long cm_other = read_gcr_error_mult();
+ int ocause, cause;
+ char buf[256];
+
+ if (!mips_cm_present())
+ return;
+
+ cause = cm_error >> cm_error_cause_sft;
+
+ if (!cause)
+ /* All good */
+ return;
+
+ ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+ if (revision < CM_REV_CM3) { /* CM2 */
+ if (cause < 16) {
+ unsigned long cca_bits = (cm_error >> 15) & 7;
+ unsigned long tr_bits = (cm_error >> 12) & 7;
+ unsigned long cmd_bits = (cm_error >> 7) & 0x1f;
+ unsigned long stag_bits = (cm_error >> 3) & 15;
+ unsigned long sport_bits = (cm_error >> 0) & 7;
+
+ snprintf(buf, sizeof(buf),
+ "CCA=%lu TR=%s MCmd=%s STag=%lu "
+ "SPort=%lu\n", cca_bits, cm2_tr[tr_bits],
+ cm2_cmd[cmd_bits], stag_bits, sport_bits);
+ } else {
+ /* glob state & sresp together */
+ unsigned long c3_bits = (cm_error >> 18) & 7;
+ unsigned long c2_bits = (cm_error >> 15) & 7;
+ unsigned long c1_bits = (cm_error >> 12) & 7;
+ unsigned long c0_bits = (cm_error >> 9) & 7;
+ unsigned long sc_bit = (cm_error >> 8) & 1;
+ unsigned long cmd_bits = (cm_error >> 3) & 0x1f;
+ unsigned long sport_bits = (cm_error >> 0) & 7;
+
+ snprintf(buf, sizeof(buf),
+ "C3=%s C2=%s C1=%s C0=%s SC=%s "
+ "MCmd=%s SPort=%lu\n",
+ cm2_core[c3_bits], cm2_core[c2_bits],
+ cm2_core[c1_bits], cm2_core[c0_bits],
+ sc_bit ? "True" : "False",
+ cm2_cmd[cmd_bits], sport_bits);
+ }
+ pr_err("CM_ERROR=%08llx %s <%s>\n", cm_error,
+ cm2_causes[cause], buf);
+ pr_err("CM_ADDR =%08lx\n", cm_addr);
+ pr_err("CM_OTHER=%08lx %s\n", cm_other, cm2_causes[ocause]);
+ } else { /* CM3 */
+ /* Used by cause == {1,2,3} */
+ unsigned long core_id_bits = (cm_error >> 22) & 0xf;
+ unsigned long vp_id_bits = (cm_error >> 18) & 0xf;
+ unsigned long cmd_bits = (cm_error >> 14) & 0xf;
+ unsigned long cmd_group_bits = (cm_error >> 11) & 0xf;
+ unsigned long cm3_cca_bits = (cm_error >> 8) & 7;
+ unsigned long mcp_bits = (cm_error >> 5) & 0xf;
+ unsigned long cm3_tr_bits = (cm_error >> 1) & 0xf;
+ unsigned long sched_bit = cm_error & 0x1;
+
+ if (cause == 1 || cause == 3) { /* Tag ECC */
+ unsigned long tag_ecc = (cm_error >> 57) & 0x1;
+ unsigned long tag_way_bits = (cm_error >> 29) & 0xffff;
+ unsigned long dword_bits = (cm_error >> 49) & 0xff;
+ unsigned long data_way_bits = (cm_error >> 45) & 0xf;
+ unsigned long data_sets_bits = (cm_error >> 29) & 0xfff;
+ unsigned long bank_bit = (cm_error >> 28) & 0x1;
+ snprintf(buf, sizeof(buf),
+ "%s ECC Error: Way=%lu (DWORD=%lu, Sets=%lu)"
+ "Bank=%lu CoreID=%lu VPID=%lu Command=%s"
+ "Command Group=%s CCA=%lu MCP=%d"
+ "Transaction type=%s Scheduler=%lu\n",
+ tag_ecc ? "TAG" : "DATA",
+ tag_ecc ? (unsigned long)ffs(tag_way_bits) - 1 :
+ data_way_bits, bank_bit, dword_bits,
+ data_sets_bits,
+ core_id_bits, vp_id_bits,
+ cm3_cmd[cmd_bits],
+ cm3_cmd_group[cmd_group_bits],
+ cm3_cca_bits, 1 << mcp_bits,
+ cm3_tr[cm3_tr_bits], sched_bit);
+ } else if (cause == 2) {
+ unsigned long data_error_type = (cm_error >> 41) & 0xfff;
+ unsigned long data_decode_cmd = (cm_error >> 37) & 0xf;
+ unsigned long data_decode_group = (cm_error >> 34) & 0x7;
+ unsigned long data_decode_destination_id = (cm_error >> 28) & 0x3f;
+
+ snprintf(buf, sizeof(buf),
+ "Decode Request Error: Type=%lu, Command=%lu"
+ "Command Group=%lu Destination ID=%lu"
+ "CoreID=%lu VPID=%lu Command=%s"
+ "Command Group=%s CCA=%lu MCP=%d"
+ "Transaction type=%s Scheduler=%lu\n",
+ data_error_type, data_decode_cmd,
+ data_decode_group, data_decode_destination_id,
+ core_id_bits, vp_id_bits,
+ cm3_cmd[cmd_bits],
+ cm3_cmd_group[cmd_group_bits],
+ cm3_cca_bits, 1 << mcp_bits,
+ cm3_tr[cm3_tr_bits], sched_bit);
+ }
+
+ pr_err("CM_ERROR=%llx %s <%s>\n", cm_error,
+ cm3_causes[cause], buf);
+ pr_err("CM_ADDR =%lx\n", cm_addr);
+ pr_err("CM_OTHER=%lx %s\n", cm_other, cm3_causes[ocause]);
+ }
+
+ /* reprime cause register */
+ write_gcr_error_cause(0);
+}
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 11964501c..8af4d627b 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -21,9 +21,16 @@ static DEFINE_PER_CPU_ALIGNED(spinlock_t, cpc_core_lock);
static DEFINE_PER_CPU_ALIGNED(unsigned long, cpc_core_lock_flags);
-phys_addr_t __weak mips_cpc_phys_base(void)
+/**
+ * mips_cpc_phys_base - retrieve the physical base address of the CPC
+ *
+ * This function returns the physical base address of the Cluster Power
+ * Controller memory mapped registers, or 0 if no Cluster Power Controller
+ * is present.
+ */
+static phys_addr_t mips_cpc_phys_base(void)
{
- u32 cpc_base;
+ unsigned long cpc_base;
if (!mips_cm_present())
return 0;
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S
index 423ae83af..3375745b9 100644
--- a/arch/mips/kernel/octeon_switch.S
+++ b/arch/mips/kernel/octeon_switch.S
@@ -18,7 +18,7 @@
.set pop
/*
* task_struct *resume(task_struct *prev, task_struct *next,
- * struct thread_info *next_ti, int usedfpu)
+ * struct thread_info *next_ti)
*/
.align 7
LEAF(resume)
@@ -28,30 +28,6 @@
cpu_save_nonscratch a0
LONG_S ra, THREAD_REG31(a0)
- /*
- * check if we need to save FPU registers
- */
- .set push
- .set noreorder
- beqz a3, 1f
- PTR_L t3, TASK_THREAD_INFO(a0)
- .set pop
-
- /*
- * clear saved user stack CU1 bit
- */
- LONG_L t0, ST_OFF(t3)
- li t1, ~ST0_CU1
- and t0, t0, t1
- LONG_S t0, ST_OFF(t3)
-
- .set push
- .set arch=mips64r2
- fpu_save_double a0 t0 t1 # c0_status passed in t0
- # clobbers t1
- .set pop
-1:
-
#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
/* Check if we need to store CVMSEG state */
dmfc0 t0, $11,7 /* CvmMemCtl */
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index cc1b6fadf..d7b8dd431 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -1556,6 +1556,7 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config)
#endif
break;
case CPU_P5600:
+ case CPU_I6400:
/* 8-bit event numbers */
raw_id = config & 0x1ff;
base_id = raw_id & 0xff;
@@ -1717,6 +1718,11 @@ init_hw_perf_events(void)
mipspmu.general_event_map = &mipsxxcore_event_map2;
mipspmu.cache_event_map = &mipsxxcore_cache_map2;
break;
+ case CPU_I6400:
+ mipspmu.name = "mips/I6400";
+ mipspmu.general_event_map = &mipsxxcore_event_map2;
+ mipspmu.cache_event_map = &mipsxxcore_cache_map2;
+ break;
case CPU_1004K:
mipspmu.name = "mips/1004K";
mipspmu.general_event_map = &mipsxxcore_event_map;
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
index 06147179a..f63a28997 100644
--- a/arch/mips/kernel/pm-cps.c
+++ b/arch/mips/kernel/pm-cps.c
@@ -267,6 +267,7 @@ static int __init cps_gen_flush_fsb(u32 **pp, struct uasm_label **pl,
/* CPUs which do not require the workaround */
case CPU_P5600:
+ case CPU_I6400:
return 0;
default:
@@ -671,6 +672,7 @@ static int __init cps_pm_init(void)
case CPU_PROAPTIV:
case CPU_M5150:
case CPU_P5600:
+ case CPU_I6400:
stype_intervention = 0x2;
stype_memory = 0x3;
stype_ordering = 0x10;
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index e933a309f..4f0ac78d1 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -25,6 +25,7 @@
#include <linux/regset.h>
#include <linux/smp.h>
#include <linux/security.h>
+#include <linux/stddef.h>
#include <linux/tracehook.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
@@ -490,6 +491,93 @@ enum mips_regset {
REGSET_FPR,
};
+struct pt_regs_offset {
+ const char *name;
+ int offset;
+};
+
+#define REG_OFFSET_NAME(reg, r) { \
+ .name = #reg, \
+ .offset = offsetof(struct pt_regs, r) \
+}
+
+#define REG_OFFSET_END { \
+ .name = NULL, \
+ .offset = 0 \
+}
+
+static const struct pt_regs_offset regoffset_table[] = {
+ REG_OFFSET_NAME(r0, regs[0]),
+ REG_OFFSET_NAME(r1, regs[1]),
+ REG_OFFSET_NAME(r2, regs[2]),
+ REG_OFFSET_NAME(r3, regs[3]),
+ REG_OFFSET_NAME(r4, regs[4]),
+ REG_OFFSET_NAME(r5, regs[5]),
+ REG_OFFSET_NAME(r6, regs[6]),
+ REG_OFFSET_NAME(r7, regs[7]),
+ REG_OFFSET_NAME(r8, regs[8]),
+ REG_OFFSET_NAME(r9, regs[9]),
+ REG_OFFSET_NAME(r10, regs[10]),
+ REG_OFFSET_NAME(r11, regs[11]),
+ REG_OFFSET_NAME(r12, regs[12]),
+ REG_OFFSET_NAME(r13, regs[13]),
+ REG_OFFSET_NAME(r14, regs[14]),
+ REG_OFFSET_NAME(r15, regs[15]),
+ REG_OFFSET_NAME(r16, regs[16]),
+ REG_OFFSET_NAME(r17, regs[17]),
+ REG_OFFSET_NAME(r18, regs[18]),
+ REG_OFFSET_NAME(r19, regs[19]),
+ REG_OFFSET_NAME(r20, regs[20]),
+ REG_OFFSET_NAME(r21, regs[21]),
+ REG_OFFSET_NAME(r22, regs[22]),
+ REG_OFFSET_NAME(r23, regs[23]),
+ REG_OFFSET_NAME(r24, regs[24]),
+ REG_OFFSET_NAME(r25, regs[25]),
+ REG_OFFSET_NAME(r26, regs[26]),
+ REG_OFFSET_NAME(r27, regs[27]),
+ REG_OFFSET_NAME(r28, regs[28]),
+ REG_OFFSET_NAME(r29, regs[29]),
+ REG_OFFSET_NAME(r30, regs[30]),
+ REG_OFFSET_NAME(r31, regs[31]),
+ REG_OFFSET_NAME(c0_status, cp0_status),
+ REG_OFFSET_NAME(hi, hi),
+ REG_OFFSET_NAME(lo, lo),
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ REG_OFFSET_NAME(acx, acx),
+#endif
+ REG_OFFSET_NAME(c0_badvaddr, cp0_badvaddr),
+ REG_OFFSET_NAME(c0_cause, cp0_cause),
+ REG_OFFSET_NAME(c0_epc, cp0_epc),
+#ifdef CONFIG_MIPS_MT_SMTC
+ REG_OFFSET_NAME(c0_tcstatus, cp0_tcstatus),
+#endif
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ REG_OFFSET_NAME(mpl0, mpl[0]),
+ REG_OFFSET_NAME(mpl1, mpl[1]),
+ REG_OFFSET_NAME(mpl2, mpl[2]),
+ REG_OFFSET_NAME(mtp0, mtp[0]),
+ REG_OFFSET_NAME(mtp1, mtp[1]),
+ REG_OFFSET_NAME(mtp2, mtp[2]),
+#endif
+ REG_OFFSET_END,
+};
+
+/**
+ * regs_query_register_offset() - query register offset from its name
+ * @name: the name of a register
+ *
+ * regs_query_register_offset() returns the offset of a register in struct
+ * pt_regs from its name. If the name is invalid, this returns -EINVAL;
+ */
+int regs_query_register_offset(const char *name)
+{
+ const struct pt_regs_offset *roff;
+ for (roff = regoffset_table; roff->name != NULL; roff++)
+ if (!strcmp(roff->name, name))
+ return roff->offset;
+ return -EINVAL;
+}
+
#if defined(CONFIG_32BIT) || defined(CONFIG_MIPS32_O32)
static const struct user_regset mips_regsets[] = {
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S
index 5087a4b72..ac27ef7d4 100644
--- a/arch/mips/kernel/r2300_switch.S
+++ b/arch/mips/kernel/r2300_switch.S
@@ -31,18 +31,8 @@
#define ST_OFF (_THREAD_SIZE - 32 - PT_SIZE + PT_STATUS)
/*
- * FPU context is saved iff the process has used it's FPU in the current
- * time slice as indicated by TIF_USEDFPU. In any case, the CU1 bit for user
- * space STATUS register should be 0, so that a process *always* starts its
- * userland with FPU disabled after each context switch.
- *
- * FPU will be enabled as soon as the process accesses FPU again, through
- * do_cpu() trap.
- */
-
-/*
* task_struct *resume(task_struct *prev, task_struct *next,
- * struct thread_info *next_ti, int usedfpu)
+ * struct thread_info *next_ti)
*/
LEAF(resume)
mfc0 t1, CP0_STATUS
@@ -50,22 +40,6 @@ LEAF(resume)
cpu_save_nonscratch a0
sw ra, THREAD_REG31(a0)
- beqz a3, 1f
-
- PTR_L t3, TASK_THREAD_INFO(a0)
-
- /*
- * clear saved user stack CU1 bit
- */
- lw t0, ST_OFF(t3)
- li t1, ~ST0_CU1
- and t0, t0, t1
- sw t0, ST_OFF(t3)
-
- fpu_save_single a0, t0 # clobbers t0
-
-1:
-
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
PTR_LA t8, __stack_chk_guard
LONG_L t9, TASK_STACK_CANARY(a1)
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 1d88af26b..f09546ee2 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -13,6 +13,7 @@
* Copyright (C) 1999, 2001 Silicon Graphics, Inc.
*/
#include <asm/asm.h>
+#include <asm/asmmacro.h>
#include <asm/errno.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
@@ -35,6 +36,14 @@
.set noreorder
+/**
+ * _save_fp_context() - save FP context from the FPU
+ * @a0 - pointer to fpregs field of sigcontext
+ * @a1 - pointer to fpc_csr field of sigcontext
+ *
+ * Save FP context, including the 32 FP data registers and the FP
+ * control & status register, from the FPU to signal context.
+ */
LEAF(_save_fp_context)
.set push
SET_HARDFLOAT
@@ -54,117 +63,60 @@ LEAF(_save_fp_context)
nop
#endif
/* Store the 16 odd double precision registers */
- EX sdc1 $f1, SC_FPREGS+8(a0)
- EX sdc1 $f3, SC_FPREGS+24(a0)
- EX sdc1 $f5, SC_FPREGS+40(a0)
- EX sdc1 $f7, SC_FPREGS+56(a0)
- EX sdc1 $f9, SC_FPREGS+72(a0)
- EX sdc1 $f11, SC_FPREGS+88(a0)
- EX sdc1 $f13, SC_FPREGS+104(a0)
- EX sdc1 $f15, SC_FPREGS+120(a0)
- EX sdc1 $f17, SC_FPREGS+136(a0)
- EX sdc1 $f19, SC_FPREGS+152(a0)
- EX sdc1 $f21, SC_FPREGS+168(a0)
- EX sdc1 $f23, SC_FPREGS+184(a0)
- EX sdc1 $f25, SC_FPREGS+200(a0)
- EX sdc1 $f27, SC_FPREGS+216(a0)
- EX sdc1 $f29, SC_FPREGS+232(a0)
- EX sdc1 $f31, SC_FPREGS+248(a0)
+ EX sdc1 $f1, 8(a0)
+ EX sdc1 $f3, 24(a0)
+ EX sdc1 $f5, 40(a0)
+ EX sdc1 $f7, 56(a0)
+ EX sdc1 $f9, 72(a0)
+ EX sdc1 $f11, 88(a0)
+ EX sdc1 $f13, 104(a0)
+ EX sdc1 $f15, 120(a0)
+ EX sdc1 $f17, 136(a0)
+ EX sdc1 $f19, 152(a0)
+ EX sdc1 $f21, 168(a0)
+ EX sdc1 $f23, 184(a0)
+ EX sdc1 $f25, 200(a0)
+ EX sdc1 $f27, 216(a0)
+ EX sdc1 $f29, 232(a0)
+ EX sdc1 $f31, 248(a0)
1: .set pop
#endif
.set push
SET_HARDFLOAT
/* Store the 16 even double precision registers */
- EX sdc1 $f0, SC_FPREGS+0(a0)
- EX sdc1 $f2, SC_FPREGS+16(a0)
- EX sdc1 $f4, SC_FPREGS+32(a0)
- EX sdc1 $f6, SC_FPREGS+48(a0)
- EX sdc1 $f8, SC_FPREGS+64(a0)
- EX sdc1 $f10, SC_FPREGS+80(a0)
- EX sdc1 $f12, SC_FPREGS+96(a0)
- EX sdc1 $f14, SC_FPREGS+112(a0)
- EX sdc1 $f16, SC_FPREGS+128(a0)
- EX sdc1 $f18, SC_FPREGS+144(a0)
- EX sdc1 $f20, SC_FPREGS+160(a0)
- EX sdc1 $f22, SC_FPREGS+176(a0)
- EX sdc1 $f24, SC_FPREGS+192(a0)
- EX sdc1 $f26, SC_FPREGS+208(a0)
- EX sdc1 $f28, SC_FPREGS+224(a0)
- EX sdc1 $f30, SC_FPREGS+240(a0)
- EX sw t1, SC_FPC_CSR(a0)
+ EX sdc1 $f0, 0(a0)
+ EX sdc1 $f2, 16(a0)
+ EX sdc1 $f4, 32(a0)
+ EX sdc1 $f6, 48(a0)
+ EX sdc1 $f8, 64(a0)
+ EX sdc1 $f10, 80(a0)
+ EX sdc1 $f12, 96(a0)
+ EX sdc1 $f14, 112(a0)
+ EX sdc1 $f16, 128(a0)
+ EX sdc1 $f18, 144(a0)
+ EX sdc1 $f20, 160(a0)
+ EX sdc1 $f22, 176(a0)
+ EX sdc1 $f24, 192(a0)
+ EX sdc1 $f26, 208(a0)
+ EX sdc1 $f28, 224(a0)
+ EX sdc1 $f30, 240(a0)
+ EX sw t1, 0(a1)
jr ra
li v0, 0 # success
.set pop
END(_save_fp_context)
-#ifdef CONFIG_MIPS32_COMPAT
- /* Save 32-bit process floating point context */
-LEAF(_save_fp_context32)
- .set push
- .set MIPS_ISA_ARCH_LEVEL_RAW
- SET_HARDFLOAT
- cfc1 t1, fcr31
-
-#ifndef CONFIG_CPU_MIPS64_R6
- mfc0 t0, CP0_STATUS
- sll t0, t0, 5
- bgez t0, 1f # skip storing odd if FR=0
- nop
-#endif
-
- /* Store the 16 odd double precision registers */
- EX sdc1 $f1, SC32_FPREGS+8(a0)
- EX sdc1 $f3, SC32_FPREGS+24(a0)
- EX sdc1 $f5, SC32_FPREGS+40(a0)
- EX sdc1 $f7, SC32_FPREGS+56(a0)
- EX sdc1 $f9, SC32_FPREGS+72(a0)
- EX sdc1 $f11, SC32_FPREGS+88(a0)
- EX sdc1 $f13, SC32_FPREGS+104(a0)
- EX sdc1 $f15, SC32_FPREGS+120(a0)
- EX sdc1 $f17, SC32_FPREGS+136(a0)
- EX sdc1 $f19, SC32_FPREGS+152(a0)
- EX sdc1 $f21, SC32_FPREGS+168(a0)
- EX sdc1 $f23, SC32_FPREGS+184(a0)
- EX sdc1 $f25, SC32_FPREGS+200(a0)
- EX sdc1 $f27, SC32_FPREGS+216(a0)
- EX sdc1 $f29, SC32_FPREGS+232(a0)
- EX sdc1 $f31, SC32_FPREGS+248(a0)
-
- /* Store the 16 even double precision registers */
-1: EX sdc1 $f0, SC32_FPREGS+0(a0)
- EX sdc1 $f2, SC32_FPREGS+16(a0)
- EX sdc1 $f4, SC32_FPREGS+32(a0)
- EX sdc1 $f6, SC32_FPREGS+48(a0)
- EX sdc1 $f8, SC32_FPREGS+64(a0)
- EX sdc1 $f10, SC32_FPREGS+80(a0)
- EX sdc1 $f12, SC32_FPREGS+96(a0)
- EX sdc1 $f14, SC32_FPREGS+112(a0)
- EX sdc1 $f16, SC32_FPREGS+128(a0)
- EX sdc1 $f18, SC32_FPREGS+144(a0)
- EX sdc1 $f20, SC32_FPREGS+160(a0)
- EX sdc1 $f22, SC32_FPREGS+176(a0)
- EX sdc1 $f24, SC32_FPREGS+192(a0)
- EX sdc1 $f26, SC32_FPREGS+208(a0)
- EX sdc1 $f28, SC32_FPREGS+224(a0)
- EX sdc1 $f30, SC32_FPREGS+240(a0)
- EX sw t1, SC32_FPC_CSR(a0)
- cfc1 t0, $0 # implementation/version
- EX sw t0, SC32_FPC_EIR(a0)
- .set pop
-
- jr ra
- li v0, 0 # success
- END(_save_fp_context32)
-#endif
-
-/*
- * Restore FPU state:
- * - fp gp registers
- * - cp1 status/control register
+/**
+ * _restore_fp_context() - restore FP context to the FPU
+ * @a0 - pointer to fpregs field of sigcontext
+ * @a1 - pointer to fpc_csr field of sigcontext
+ *
+ * Restore FP context, including the 32 FP data registers and the FP
+ * control & status register, from signal context to the FPU.
*/
LEAF(_restore_fp_context)
- EX lw t1, SC_FPC_CSR(a0)
+ EX lw t1, 0(a1)
#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
defined(CONFIG_CPU_MIPS32_R6)
@@ -178,101 +130,231 @@ LEAF(_restore_fp_context)
bgez t0, 1f # skip loading odd if FR=0
nop
#endif
- EX ldc1 $f1, SC_FPREGS+8(a0)
- EX ldc1 $f3, SC_FPREGS+24(a0)
- EX ldc1 $f5, SC_FPREGS+40(a0)
- EX ldc1 $f7, SC_FPREGS+56(a0)
- EX ldc1 $f9, SC_FPREGS+72(a0)
- EX ldc1 $f11, SC_FPREGS+88(a0)
- EX ldc1 $f13, SC_FPREGS+104(a0)
- EX ldc1 $f15, SC_FPREGS+120(a0)
- EX ldc1 $f17, SC_FPREGS+136(a0)
- EX ldc1 $f19, SC_FPREGS+152(a0)
- EX ldc1 $f21, SC_FPREGS+168(a0)
- EX ldc1 $f23, SC_FPREGS+184(a0)
- EX ldc1 $f25, SC_FPREGS+200(a0)
- EX ldc1 $f27, SC_FPREGS+216(a0)
- EX ldc1 $f29, SC_FPREGS+232(a0)
- EX ldc1 $f31, SC_FPREGS+248(a0)
+ EX ldc1 $f1, 8(a0)
+ EX ldc1 $f3, 24(a0)
+ EX ldc1 $f5, 40(a0)
+ EX ldc1 $f7, 56(a0)
+ EX ldc1 $f9, 72(a0)
+ EX ldc1 $f11, 88(a0)
+ EX ldc1 $f13, 104(a0)
+ EX ldc1 $f15, 120(a0)
+ EX ldc1 $f17, 136(a0)
+ EX ldc1 $f19, 152(a0)
+ EX ldc1 $f21, 168(a0)
+ EX ldc1 $f23, 184(a0)
+ EX ldc1 $f25, 200(a0)
+ EX ldc1 $f27, 216(a0)
+ EX ldc1 $f29, 232(a0)
+ EX ldc1 $f31, 248(a0)
1: .set pop
#endif
.set push
SET_HARDFLOAT
- EX ldc1 $f0, SC_FPREGS+0(a0)
- EX ldc1 $f2, SC_FPREGS+16(a0)
- EX ldc1 $f4, SC_FPREGS+32(a0)
- EX ldc1 $f6, SC_FPREGS+48(a0)
- EX ldc1 $f8, SC_FPREGS+64(a0)
- EX ldc1 $f10, SC_FPREGS+80(a0)
- EX ldc1 $f12, SC_FPREGS+96(a0)
- EX ldc1 $f14, SC_FPREGS+112(a0)
- EX ldc1 $f16, SC_FPREGS+128(a0)
- EX ldc1 $f18, SC_FPREGS+144(a0)
- EX ldc1 $f20, SC_FPREGS+160(a0)
- EX ldc1 $f22, SC_FPREGS+176(a0)
- EX ldc1 $f24, SC_FPREGS+192(a0)
- EX ldc1 $f26, SC_FPREGS+208(a0)
- EX ldc1 $f28, SC_FPREGS+224(a0)
- EX ldc1 $f30, SC_FPREGS+240(a0)
+ EX ldc1 $f0, 0(a0)
+ EX ldc1 $f2, 16(a0)
+ EX ldc1 $f4, 32(a0)
+ EX ldc1 $f6, 48(a0)
+ EX ldc1 $f8, 64(a0)
+ EX ldc1 $f10, 80(a0)
+ EX ldc1 $f12, 96(a0)
+ EX ldc1 $f14, 112(a0)
+ EX ldc1 $f16, 128(a0)
+ EX ldc1 $f18, 144(a0)
+ EX ldc1 $f20, 160(a0)
+ EX ldc1 $f22, 176(a0)
+ EX ldc1 $f24, 192(a0)
+ EX ldc1 $f26, 208(a0)
+ EX ldc1 $f28, 224(a0)
+ EX ldc1 $f30, 240(a0)
ctc1 t1, fcr31
.set pop
jr ra
li v0, 0 # success
END(_restore_fp_context)
-#ifdef CONFIG_MIPS32_COMPAT
-LEAF(_restore_fp_context32)
- /* Restore an o32 sigcontext. */
- .set push
- SET_HARDFLOAT
- EX lw t1, SC32_FPC_CSR(a0)
+#ifdef CONFIG_CPU_HAS_MSA
-#ifndef CONFIG_CPU_MIPS64_R6
- mfc0 t0, CP0_STATUS
- sll t0, t0, 5
- bgez t0, 1f # skip loading odd if FR=0
+ .macro op_one_wr op, idx, base
+ .align 4
+\idx: \op \idx, 0, \base
+ jr ra
nop
-#endif
+ .endm
- EX ldc1 $f1, SC32_FPREGS+8(a0)
- EX ldc1 $f3, SC32_FPREGS+24(a0)
- EX ldc1 $f5, SC32_FPREGS+40(a0)
- EX ldc1 $f7, SC32_FPREGS+56(a0)
- EX ldc1 $f9, SC32_FPREGS+72(a0)
- EX ldc1 $f11, SC32_FPREGS+88(a0)
- EX ldc1 $f13, SC32_FPREGS+104(a0)
- EX ldc1 $f15, SC32_FPREGS+120(a0)
- EX ldc1 $f17, SC32_FPREGS+136(a0)
- EX ldc1 $f19, SC32_FPREGS+152(a0)
- EX ldc1 $f21, SC32_FPREGS+168(a0)
- EX ldc1 $f23, SC32_FPREGS+184(a0)
- EX ldc1 $f25, SC32_FPREGS+200(a0)
- EX ldc1 $f27, SC32_FPREGS+216(a0)
- EX ldc1 $f29, SC32_FPREGS+232(a0)
- EX ldc1 $f31, SC32_FPREGS+248(a0)
+ .macro op_msa_wr name, op
+LEAF(\name)
+ .set push
+ .set noreorder
+ sll t0, a0, 4
+ PTR_LA t1, 0f
+ PTR_ADDU t0, t0, t1
+ jr t0
+ nop
+ op_one_wr \op, 0, a1
+ op_one_wr \op, 1, a1
+ op_one_wr \op, 2, a1
+ op_one_wr \op, 3, a1
+ op_one_wr \op, 4, a1
+ op_one_wr \op, 5, a1
+ op_one_wr \op, 6, a1
+ op_one_wr \op, 7, a1
+ op_one_wr \op, 8, a1
+ op_one_wr \op, 9, a1
+ op_one_wr \op, 10, a1
+ op_one_wr \op, 11, a1
+ op_one_wr \op, 12, a1
+ op_one_wr \op, 13, a1
+ op_one_wr \op, 14, a1
+ op_one_wr \op, 15, a1
+ op_one_wr \op, 16, a1
+ op_one_wr \op, 17, a1
+ op_one_wr \op, 18, a1
+ op_one_wr \op, 19, a1
+ op_one_wr \op, 20, a1
+ op_one_wr \op, 21, a1
+ op_one_wr \op, 22, a1
+ op_one_wr \op, 23, a1
+ op_one_wr \op, 24, a1
+ op_one_wr \op, 25, a1
+ op_one_wr \op, 26, a1
+ op_one_wr \op, 27, a1
+ op_one_wr \op, 28, a1
+ op_one_wr \op, 29, a1
+ op_one_wr \op, 30, a1
+ op_one_wr \op, 31, a1
+ .set pop
+ END(\name)
+ .endm
-1: EX ldc1 $f0, SC32_FPREGS+0(a0)
- EX ldc1 $f2, SC32_FPREGS+16(a0)
- EX ldc1 $f4, SC32_FPREGS+32(a0)
- EX ldc1 $f6, SC32_FPREGS+48(a0)
- EX ldc1 $f8, SC32_FPREGS+64(a0)
- EX ldc1 $f10, SC32_FPREGS+80(a0)
- EX ldc1 $f12, SC32_FPREGS+96(a0)
- EX ldc1 $f14, SC32_FPREGS+112(a0)
- EX ldc1 $f16, SC32_FPREGS+128(a0)
- EX ldc1 $f18, SC32_FPREGS+144(a0)
- EX ldc1 $f20, SC32_FPREGS+160(a0)
- EX ldc1 $f22, SC32_FPREGS+176(a0)
- EX ldc1 $f24, SC32_FPREGS+192(a0)
- EX ldc1 $f26, SC32_FPREGS+208(a0)
- EX ldc1 $f28, SC32_FPREGS+224(a0)
- EX ldc1 $f30, SC32_FPREGS+240(a0)
- ctc1 t1, fcr31
+ op_msa_wr read_msa_wr_b, st_b
+ op_msa_wr read_msa_wr_h, st_h
+ op_msa_wr read_msa_wr_w, st_w
+ op_msa_wr read_msa_wr_d, st_d
+
+ op_msa_wr write_msa_wr_b, ld_b
+ op_msa_wr write_msa_wr_h, ld_h
+ op_msa_wr write_msa_wr_w, ld_w
+ op_msa_wr write_msa_wr_d, ld_d
+
+#endif /* CONFIG_CPU_HAS_MSA */
+
+#ifdef CONFIG_CPU_HAS_MSA
+
+ .macro save_msa_upper wr, off, base
+ .set push
+ .set noat
+#ifdef CONFIG_64BIT
+ copy_u_d \wr, 1
+ EX sd $1, \off(\base)
+#elif defined(CONFIG_CPU_LITTLE_ENDIAN)
+ copy_u_w \wr, 2
+ EX sw $1, \off(\base)
+ copy_u_w \wr, 3
+ EX sw $1, (\off+4)(\base)
+#else /* CONFIG_CPU_BIG_ENDIAN */
+ copy_u_w \wr, 2
+ EX sw $1, (\off+4)(\base)
+ copy_u_w \wr, 3
+ EX sw $1, \off(\base)
+#endif
+ .set pop
+ .endm
+
+LEAF(_save_msa_all_upper)
+ save_msa_upper 0, 0x00, a0
+ save_msa_upper 1, 0x08, a0
+ save_msa_upper 2, 0x10, a0
+ save_msa_upper 3, 0x18, a0
+ save_msa_upper 4, 0x20, a0
+ save_msa_upper 5, 0x28, a0
+ save_msa_upper 6, 0x30, a0
+ save_msa_upper 7, 0x38, a0
+ save_msa_upper 8, 0x40, a0
+ save_msa_upper 9, 0x48, a0
+ save_msa_upper 10, 0x50, a0
+ save_msa_upper 11, 0x58, a0
+ save_msa_upper 12, 0x60, a0
+ save_msa_upper 13, 0x68, a0
+ save_msa_upper 14, 0x70, a0
+ save_msa_upper 15, 0x78, a0
+ save_msa_upper 16, 0x80, a0
+ save_msa_upper 17, 0x88, a0
+ save_msa_upper 18, 0x90, a0
+ save_msa_upper 19, 0x98, a0
+ save_msa_upper 20, 0xa0, a0
+ save_msa_upper 21, 0xa8, a0
+ save_msa_upper 22, 0xb0, a0
+ save_msa_upper 23, 0xb8, a0
+ save_msa_upper 24, 0xc0, a0
+ save_msa_upper 25, 0xc8, a0
+ save_msa_upper 26, 0xd0, a0
+ save_msa_upper 27, 0xd8, a0
+ save_msa_upper 28, 0xe0, a0
+ save_msa_upper 29, 0xe8, a0
+ save_msa_upper 30, 0xf0, a0
+ save_msa_upper 31, 0xf8, a0
jr ra
- li v0, 0 # success
- .set pop
- END(_restore_fp_context32)
+ li v0, 0
+ END(_save_msa_all_upper)
+
+ .macro restore_msa_upper wr, off, base
+ .set push
+ .set noat
+#ifdef CONFIG_64BIT
+ EX ld $1, \off(\base)
+ insert_d \wr, 1
+#elif defined(CONFIG_CPU_LITTLE_ENDIAN)
+ EX lw $1, \off(\base)
+ insert_w \wr, 2
+ EX lw $1, (\off+4)(\base)
+ insert_w \wr, 3
+#else /* CONFIG_CPU_BIG_ENDIAN */
+ EX lw $1, (\off+4)(\base)
+ insert_w \wr, 2
+ EX lw $1, \off(\base)
+ insert_w \wr, 3
#endif
+ .set pop
+ .endm
+
+LEAF(_restore_msa_all_upper)
+ restore_msa_upper 0, 0x00, a0
+ restore_msa_upper 1, 0x08, a0
+ restore_msa_upper 2, 0x10, a0
+ restore_msa_upper 3, 0x18, a0
+ restore_msa_upper 4, 0x20, a0
+ restore_msa_upper 5, 0x28, a0
+ restore_msa_upper 6, 0x30, a0
+ restore_msa_upper 7, 0x38, a0
+ restore_msa_upper 8, 0x40, a0
+ restore_msa_upper 9, 0x48, a0
+ restore_msa_upper 10, 0x50, a0
+ restore_msa_upper 11, 0x58, a0
+ restore_msa_upper 12, 0x60, a0
+ restore_msa_upper 13, 0x68, a0
+ restore_msa_upper 14, 0x70, a0
+ restore_msa_upper 15, 0x78, a0
+ restore_msa_upper 16, 0x80, a0
+ restore_msa_upper 17, 0x88, a0
+ restore_msa_upper 18, 0x90, a0
+ restore_msa_upper 19, 0x98, a0
+ restore_msa_upper 20, 0xa0, a0
+ restore_msa_upper 21, 0xa8, a0
+ restore_msa_upper 22, 0xb0, a0
+ restore_msa_upper 23, 0xb8, a0
+ restore_msa_upper 24, 0xc0, a0
+ restore_msa_upper 25, 0xc8, a0
+ restore_msa_upper 26, 0xd0, a0
+ restore_msa_upper 27, 0xd8, a0
+ restore_msa_upper 28, 0xe0, a0
+ restore_msa_upper 29, 0xe8, a0
+ restore_msa_upper 30, 0xf0, a0
+ restore_msa_upper 31, 0xf8, a0
+ jr ra
+ li v0, 0
+ END(_restore_msa_all_upper)
+
+#endif /* CONFIG_CPU_HAS_MSA */
.set reorder
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 04cbbde35..92cd0516e 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -34,7 +34,7 @@
#ifndef USE_ALTERNATE_RESUME_IMPL
/*
* task_struct *resume(task_struct *prev, task_struct *next,
- * struct thread_info *next_ti, s32 fp_save)
+ * struct thread_info *next_ti)
*/
.align 5
LEAF(resume)
@@ -43,45 +43,6 @@
cpu_save_nonscratch a0
LONG_S ra, THREAD_REG31(a0)
- /*
- * Check whether we need to save any FP context. FP context is saved
- * iff the process has used the context with the scalar FPU or the MSA
- * ASE in the current time slice, as indicated by _TIF_USEDFPU and
- * _TIF_USEDMSA respectively. switch_to will have set fp_save
- * accordingly to an FP_SAVE_ enum value.
- */
- beqz a3, 2f
-
- /*
- * We do. Clear the saved CU1 bit for prev, such that next time it is
- * scheduled it will start in userland with the FPU disabled. If the
- * task uses the FPU then it will be enabled again via the do_cpu trap.
- * This allows us to lazily restore the FP context.
- */
- PTR_L t3, TASK_THREAD_INFO(a0)
- LONG_L t0, ST_OFF(t3)
- li t1, ~ST0_CU1
- and t0, t0, t1
- LONG_S t0, ST_OFF(t3)
-
- /* Check whether we're saving scalar or vector context. */
- bgtz a3, 1f
-
- /* Save 128b MSA vector context + scalar FP control & status. */
- .set push
- SET_HARDFLOAT
- cfc1 t1, fcr31
- msa_save_all a0
- .set pop /* SET_HARDFLOAT */
-
- sw t1, THREAD_FCR31(a0)
- b 2f
-
-1: /* Save 32b/64b scalar FP context. */
- fpu_save_double a0 t0 t1 # c0_status passed in t0
- # clobbers t1
-2:
-
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
PTR_LA t8, __stack_chk_guard
LONG_L t9, TASK_STACK_CANARY(a1)
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 4cc13508d..65a74e4f0 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -36,16 +36,8 @@ NESTED(handle_sys, PT_SIZE, sp)
lw t1, PT_EPC(sp) # skip syscall on return
subu v0, v0, __NR_O32_Linux # check syscall number
- sltiu t0, v0, __NR_O32_Linux_syscalls + 1
addiu t1, 4 # skip to next instruction
sw t1, PT_EPC(sp)
- beqz t0, illegal_syscall
-
- sll t0, v0, 2
- la t1, sys_call_table
- addu t1, t0
- lw t2, (t1) # syscall routine
- beqz t2, illegal_syscall
sw a3, PT_R26(sp) # save a3 for syscall restarting
@@ -96,6 +88,16 @@ loads_done:
li t1, _TIF_WORK_SYSCALL_ENTRY
and t0, t1
bnez t0, syscall_trace_entry # -> yes
+syscall_common:
+ sltiu t0, v0, __NR_O32_Linux_syscalls + 1
+ beqz t0, illegal_syscall
+
+ sll t0, v0, 2
+ la t1, sys_call_table
+ addu t1, t0
+ lw t2, (t1) # syscall routine
+
+ beqz t2, illegal_syscall
jalr t2 # Do The Real Thing (TM)
@@ -116,7 +118,7 @@ o32_syscall_exit:
syscall_trace_entry:
SAVE_STATIC
- move s0, t2
+ move s0, v0
move a0, sp
/*
@@ -129,27 +131,18 @@ syscall_trace_entry:
1: jal syscall_trace_enter
- bltz v0, 2f # seccomp failed? Skip syscall
+ bltz v0, 1f # seccomp failed? Skip syscall
+
+ move v0, s0 # restore syscall
- move t0, s0
RESTORE_STATIC
lw a0, PT_R4(sp) # Restore argument registers
lw a1, PT_R5(sp)
lw a2, PT_R6(sp)
lw a3, PT_R7(sp)
- jalr t0
-
- li t0, -EMAXERRNO - 1 # error?
- sltu t0, t0, v0
- sw t0, PT_R7(sp) # set error flag
- beqz t0, 1f
-
- lw t1, PT_R2(sp) # syscall number
- negu v0 # error
- sw t1, PT_R0(sp) # save it for syscall restarting
-1: sw v0, PT_R2(sp) # result
+ j syscall_common
-2: j syscall_exit
+1: j syscall_exit
/* ------------------------------------------------------------------------ */
@@ -599,3 +592,5 @@ EXPORT(sys_call_table)
PTR sys_memfd_create
PTR sys_bpf /* 4355 */
PTR sys_execveat
+ PTR sys_userfaultfd
+ PTR sys_membarrier
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index a6f6b762c..e732981cf 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -39,18 +39,11 @@ NESTED(handle_sys64, PT_SIZE, sp)
.set at
#endif
- dsubu t0, v0, __NR_64_Linux # check syscall number
- sltiu t0, t0, __NR_64_Linux_syscalls + 1
#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
ld t1, PT_EPC(sp) # skip syscall on return
daddiu t1, 4 # skip to next instruction
sd t1, PT_EPC(sp)
#endif
- beqz t0, illegal_syscall
-
- dsll t0, v0, 3 # offset into table
- ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0)
- # syscall routine
sd a3, PT_R26(sp) # save a3 for syscall restarting
@@ -59,6 +52,17 @@ NESTED(handle_sys64, PT_SIZE, sp)
and t0, t1, t0
bnez t0, syscall_trace_entry
+syscall_common:
+ dsubu t2, v0, __NR_64_Linux
+ sltiu t0, t2, __NR_64_Linux_syscalls + 1
+ beqz t0, illegal_syscall
+
+ dsll t0, t2, 3 # offset into table
+ dla t2, sys_call_table
+ daddu t0, t2, t0
+ ld t2, (t0) # syscall routine
+ beqz t2, illegal_syscall
+
jalr t2 # Do The Real Thing (TM)
li t0, -EMAXERRNO - 1 # error?
@@ -78,14 +82,14 @@ n64_syscall_exit:
syscall_trace_entry:
SAVE_STATIC
- move s0, t2
+ move s0, v0
move a0, sp
move a1, v0
jal syscall_trace_enter
- bltz v0, 2f # seccomp failed? Skip syscall
+ bltz v0, 1f # seccomp failed? Skip syscall
- move t0, s0
+ move v0, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
@@ -93,19 +97,9 @@ syscall_trace_entry:
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
- jalr t0
-
- li t0, -EMAXERRNO - 1 # error?
- sltu t0, t0, v0
- sd t0, PT_R7(sp) # set error flag
- beqz t0, 1f
-
- ld t1, PT_R2(sp) # syscall number
- dnegu v0 # error
- sd t1, PT_R0(sp) # save it for syscall restarting
-1: sd v0, PT_R2(sp) # result
+ j syscall_common
-2: j syscall_exit
+1: j syscall_exit
illegal_syscall:
/* This also isn't a 64-bit syscall, throw an error. */
@@ -436,4 +430,6 @@ EXPORT(sys_call_table)
PTR sys_memfd_create
PTR sys_bpf /* 5315 */
PTR sys_execveat
+ PTR sys_userfaultfd
+ PTR sys_membarrier
.size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 4b2010654..c79484397 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -52,6 +52,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
and t0, t1, t0
bnez t0, n32_syscall_trace_entry
+syscall_common:
jalr t2 # Do The Real Thing (TM)
li t0, -EMAXERRNO - 1 # error?
@@ -75,9 +76,9 @@ n32_syscall_trace_entry:
move a1, v0
jal syscall_trace_enter
- bltz v0, 2f # seccomp failed? Skip syscall
+ bltz v0, 1f # seccomp failed? Skip syscall
- move t0, s0
+ move t2, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
@@ -85,19 +86,9 @@ n32_syscall_trace_entry:
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
- jalr t0
+ j syscall_common
- li t0, -EMAXERRNO - 1 # error?
- sltu t0, t0, v0
- sd t0, PT_R7(sp) # set error flag
- beqz t0, 1f
-
- ld t1, PT_R2(sp) # syscall number
- dnegu v0 # error
- sd t1, PT_R0(sp) # save it for syscall restarting
-1: sd v0, PT_R2(sp) # result
-
-2: j syscall_exit
+1: j syscall_exit
not_n32_scall:
/* This is not an n32 compatibility syscall, pass it on to
@@ -429,4 +420,6 @@ EXPORT(sysn32_call_table)
PTR sys_memfd_create
PTR sys_bpf
PTR compat_sys_execveat /* 6320 */
+ PTR sys_userfaultfd
+ PTR sys_membarrier
.size sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index f543ff4fe..6369cfd39 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -87,6 +87,7 @@ loads_done:
and t0, t1, t0
bnez t0, trace_a_syscall
+syscall_common:
jalr t2 # Do The Real Thing (TM)
li t0, -EMAXERRNO - 1 # error?
@@ -130,9 +131,9 @@ trace_a_syscall:
1: jal syscall_trace_enter
- bltz v0, 2f # seccomp failed? Skip syscall
+ bltz v0, 1f # seccomp failed? Skip syscall
- move t0, s0
+ move t2, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
@@ -142,19 +143,9 @@ trace_a_syscall:
ld a5, PT_R9(sp)
ld a6, PT_R10(sp)
ld a7, PT_R11(sp) # For indirect syscalls
- jalr t0
+ j syscall_common
- li t0, -EMAXERRNO - 1 # error?
- sltu t0, t0, v0
- sd t0, PT_R7(sp) # set error flag
- beqz t0, 1f
-
- ld t1, PT_R2(sp) # syscall number
- dnegu v0 # error
- sd t1, PT_R0(sp) # save it for syscall restarting
-1: sd v0, PT_R2(sp) # result
-
-2: j syscall_exit
+1: j syscall_exit
/* ------------------------------------------------------------------------ */
@@ -584,4 +575,6 @@ EXPORT(sys32_call_table)
PTR sys_memfd_create
PTR sys_bpf /* 4355 */
PTR compat_sys_execveat
+ PTR sys_userfaultfd
+ PTR sys_membarrier
.size sys32_call_table,.-sys32_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 4ceac5cdd..479515109 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -484,7 +484,7 @@ static void __init bootmem_init(void)
* o bootmem_init()
* o sparse_init()
* o paging_init()
- * o dma_continguous_reserve()
+ * o dma_contiguous_reserve()
*
* At this stage the bootmem allocator is ready to use.
*
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 0b85f827c..f50d48435 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,4 +31,13 @@ extern int fpcsr_pending(unsigned int __user *fpcsr);
#define lock_fpu_owner() ({ preempt_disable(); pagefault_disable(); })
#define unlock_fpu_owner() ({ pagefault_enable(); preempt_enable(); })
+/* Assembly functions to move context to/from the FPU */
+extern asmlinkage int
+_save_fp_context(void __user *fpregs, void __user *csr);
+extern asmlinkage int
+_restore_fp_context(void __user *fpregs, void __user *csr);
+
+extern asmlinkage int _save_msa_all_upper(void __user *buf);
+extern asmlinkage int _restore_msa_all_upper(void __user *buf);
+
#endif /* __SIGNAL_COMMON_H */
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 6a28c792d..2fec67bfc 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -21,6 +21,7 @@
#include <linux/wait.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
+#include <linux/uprobes.h>
#include <linux/compiler.h>
#include <linux/syscalls.h>
#include <linux/uaccess.h>
@@ -38,20 +39,21 @@
#include <asm/vdso.h>
#include <asm/dsp.h>
#include <asm/inst.h>
+#include <asm/msa.h>
#include "signal-common.h"
-static int (*save_fp_context)(struct sigcontext __user *sc);
-static int (*restore_fp_context)(struct sigcontext __user *sc);
-
-extern asmlinkage int _save_fp_context(struct sigcontext __user *sc);
-extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc);
+static int (*save_fp_context)(void __user *sc);
+static int (*restore_fp_context)(void __user *sc);
struct sigframe {
u32 sf_ass[4]; /* argument save space for o32 */
u32 sf_pad[2]; /* Was: signal trampoline */
+
+ /* Matches struct ucontext from its uc_mcontext field onwards */
struct sigcontext sf_sc;
sigset_t sf_mask;
+ unsigned long long sf_extcontext[0];
};
struct rt_sigframe {
@@ -65,43 +67,255 @@ struct rt_sigframe {
* Thread saved context copy to/from a signal context presumed to be on the
* user stack, and therefore accessed with appropriate macros from uaccess.h.
*/
-static int copy_fp_to_sigcontext(struct sigcontext __user *sc)
+static int copy_fp_to_sigcontext(void __user *sc)
{
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
int i;
int err = 0;
+ int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
- for (i = 0; i < NUM_FPU_REGS; i++) {
+ for (i = 0; i < NUM_FPU_REGS; i += inc) {
err |=
__put_user(get_fpr64(&current->thread.fpu.fpr[i], 0),
- &sc->sc_fpregs[i]);
+ &fpregs[i]);
}
- err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
+ err |= __put_user(current->thread.fpu.fcr31, csr);
return err;
}
-static int copy_fp_from_sigcontext(struct sigcontext __user *sc)
+static int copy_fp_from_sigcontext(void __user *sc)
{
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
int i;
int err = 0;
+ int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
u64 fpr_val;
- for (i = 0; i < NUM_FPU_REGS; i++) {
- err |= __get_user(fpr_val, &sc->sc_fpregs[i]);
+ for (i = 0; i < NUM_FPU_REGS; i += inc) {
+ err |= __get_user(fpr_val, &fpregs[i]);
set_fpr64(&current->thread.fpu.fpr[i], 0, fpr_val);
}
- err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
+ err |= __get_user(current->thread.fpu.fcr31, csr);
return err;
}
/*
+ * Wrappers for the assembly _{save,restore}_fp_context functions.
+ */
+static int save_hw_fp_context(void __user *sc)
+{
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
+
+ return _save_fp_context(fpregs, csr);
+}
+
+static int restore_hw_fp_context(void __user *sc)
+{
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
+
+ return _restore_fp_context(fpregs, csr);
+}
+
+/*
+ * Extended context handling.
+ */
+
+static inline void __user *sc_to_extcontext(void __user *sc)
+{
+ struct ucontext __user *uc;
+
+ /*
+ * We can just pretend the sigcontext is always embedded in a struct
+ * ucontext here, because the offset from sigcontext to extended
+ * context is the same in the struct sigframe case.
+ */
+ uc = container_of(sc, struct ucontext, uc_mcontext);
+ return &uc->uc_extcontext;
+}
+
+static int save_msa_extcontext(void __user *buf)
+{
+ struct msa_extcontext __user *msa = buf;
+ uint64_t val;
+ int i, err;
+
+ if (!thread_msa_context_live())
+ return 0;
+
+ /*
+ * Ensure that we can't lose the live MSA context between checking
+ * for it & writing it to memory.
+ */
+ preempt_disable();
+
+ if (is_msa_enabled()) {
+ /*
+ * There are no EVA versions of the vector register load/store
+ * instructions, so MSA context has to be saved to kernel memory
+ * and then copied to user memory. The save to kernel memory
+ * should already have been done when handling scalar FP
+ * context.
+ */
+ BUG_ON(config_enabled(CONFIG_EVA));
+
+ err = __put_user(read_msa_csr(), &msa->csr);
+ err |= _save_msa_all_upper(&msa->wr);
+
+ preempt_enable();
+ } else {
+ preempt_enable();
+
+ err = __put_user(current->thread.fpu.msacsr, &msa->csr);
+
+ for (i = 0; i < NUM_FPU_REGS; i++) {
+ val = get_fpr64(&current->thread.fpu.fpr[i], 1);
+ err |= __put_user(val, &msa->wr[i]);
+ }
+ }
+
+ err |= __put_user(MSA_EXTCONTEXT_MAGIC, &msa->ext.magic);
+ err |= __put_user(sizeof(*msa), &msa->ext.size);
+
+ return err ? -EFAULT : sizeof(*msa);
+}
+
+static int restore_msa_extcontext(void __user *buf, unsigned int size)
+{
+ struct msa_extcontext __user *msa = buf;
+ unsigned long long val;
+ unsigned int csr;
+ int i, err;
+
+ if (size != sizeof(*msa))
+ return -EINVAL;
+
+ err = get_user(csr, &msa->csr);
+ if (err)
+ return err;
+
+ preempt_disable();
+
+ if (is_msa_enabled()) {
+ /*
+ * There are no EVA versions of the vector register load/store
+ * instructions, so MSA context has to be copied to kernel
+ * memory and later loaded to registers. The same is true of
+ * scalar FP context, so FPU & MSA should have already been
+ * disabled whilst handling scalar FP context.
+ */
+ BUG_ON(config_enabled(CONFIG_EVA));
+
+ write_msa_csr(csr);
+ err |= _restore_msa_all_upper(&msa->wr);
+ preempt_enable();
+ } else {
+ preempt_enable();
+
+ current->thread.fpu.msacsr = csr;
+
+ for (i = 0; i < NUM_FPU_REGS; i++) {
+ err |= __get_user(val, &msa->wr[i]);
+ set_fpr64(&current->thread.fpu.fpr[i], 1, val);
+ }
+ }
+
+ return err;
+}
+
+static int save_extcontext(void __user *buf)
+{
+ int sz;
+
+ sz = save_msa_extcontext(buf);
+ if (sz < 0)
+ return sz;
+ buf += sz;
+
+ /* If no context was saved then trivially return */
+ if (!sz)
+ return 0;
+
+ /* Write the end marker */
+ if (__put_user(END_EXTCONTEXT_MAGIC, (u32 *)buf))
+ return -EFAULT;
+
+ sz += sizeof(((struct extcontext *)NULL)->magic);
+ return sz;
+}
+
+static int restore_extcontext(void __user *buf)
+{
+ struct extcontext ext;
+ int err;
+
+ while (1) {
+ err = __get_user(ext.magic, (unsigned int *)buf);
+ if (err)
+ return err;
+
+ if (ext.magic == END_EXTCONTEXT_MAGIC)
+ return 0;
+
+ err = __get_user(ext.size, (unsigned int *)(buf
+ + offsetof(struct extcontext, size)));
+ if (err)
+ return err;
+
+ switch (ext.magic) {
+ case MSA_EXTCONTEXT_MAGIC:
+ err = restore_msa_extcontext(buf, ext.size);
+ break;
+
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ if (err)
+ return err;
+
+ buf += ext.size;
+ }
+}
+
+/*
* Helper routines
*/
-static int protected_save_fp_context(struct sigcontext __user *sc)
+int protected_save_fp_context(void __user *sc)
{
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
+ uint32_t __user *used_math = sc + abi->off_sc_used_math;
+ unsigned int used, ext_sz;
int err;
-#ifndef CONFIG_EVA
+
+ used = used_math() ? USED_FP : 0;
+ if (!used)
+ goto fp_done;
+
+ if (!test_thread_flag(TIF_32BIT_FPREGS))
+ used |= USED_FR1;
+ if (test_thread_flag(TIF_HYBRID_FPREGS))
+ used |= USED_HYBRID_FPRS;
+
+ /*
+ * EVA does not have userland equivalents of ldc1 or sdc1, so
+ * save to the kernel FP context & copy that to userland below.
+ */
+ if (config_enabled(CONFIG_EVA))
+ lose_fpu(1);
+
while (1) {
lock_fpu_owner();
if (is_fpu_owner()) {
@@ -114,27 +328,57 @@ static int protected_save_fp_context(struct sigcontext __user *sc)
if (likely(!err))
break;
/* touch the sigcontext and try again */
- err = __put_user(0, &sc->sc_fpregs[0]) |
- __put_user(0, &sc->sc_fpregs[31]) |
- __put_user(0, &sc->sc_fpc_csr);
+ err = __put_user(0, &fpregs[0]) |
+ __put_user(0, &fpregs[31]) |
+ __put_user(0, csr);
if (err)
- break; /* really bad sigcontext */
+ return err; /* really bad sigcontext */
}
-#else
- /*
- * EVA does not have FPU EVA instructions so saving fpu context directly
- * does not work.
- */
- lose_fpu(1);
- err = save_fp_context(sc); /* this might fail */
-#endif
- return err;
+
+fp_done:
+ ext_sz = err = save_extcontext(sc_to_extcontext(sc));
+ if (err < 0)
+ return err;
+ used |= ext_sz ? USED_EXTCONTEXT : 0;
+
+ return __put_user(used, used_math);
}
-static int protected_restore_fp_context(struct sigcontext __user *sc)
+int protected_restore_fp_context(void __user *sc)
{
- int err, tmp __maybe_unused;
-#ifndef CONFIG_EVA
+ struct mips_abi *abi = current->thread.abi;
+ uint64_t __user *fpregs = sc + abi->off_sc_fpregs;
+ uint32_t __user *csr = sc + abi->off_sc_fpc_csr;
+ uint32_t __user *used_math = sc + abi->off_sc_used_math;
+ unsigned int used;
+ int err, sig = 0, tmp __maybe_unused;
+
+ err = __get_user(used, used_math);
+ conditional_used_math(used & USED_FP);
+
+ /*
+ * The signal handler may have used FPU; give it up if the program
+ * doesn't want it following sigreturn.
+ */
+ if (err || !(used & USED_FP))
+ lose_fpu(0);
+ if (err)
+ return err;
+ if (!(used & USED_FP))
+ goto fp_done;
+
+ err = sig = fpcsr_pending(csr);
+ if (err < 0)
+ return err;
+
+ /*
+ * EVA does not have userland equivalents of ldc1 or sdc1, so we
+ * disable the FPU here such that the code below simply copies to
+ * the kernel FP context.
+ */
+ if (config_enabled(CONFIG_EVA))
+ lose_fpu(0);
+
while (1) {
lock_fpu_owner();
if (is_fpu_owner()) {
@@ -147,28 +391,24 @@ static int protected_restore_fp_context(struct sigcontext __user *sc)
if (likely(!err))
break;
/* touch the sigcontext and try again */
- err = __get_user(tmp, &sc->sc_fpregs[0]) |
- __get_user(tmp, &sc->sc_fpregs[31]) |
- __get_user(tmp, &sc->sc_fpc_csr);
+ err = __get_user(tmp, &fpregs[0]) |
+ __get_user(tmp, &fpregs[31]) |
+ __get_user(tmp, csr);
if (err)
break; /* really bad sigcontext */
}
-#else
- /*
- * EVA does not have FPU EVA instructions so restoring fpu context
- * directly does not work.
- */
- lose_fpu(0);
- err = restore_fp_context(sc); /* this might fail */
-#endif
- return err;
+
+fp_done:
+ if (used & USED_EXTCONTEXT)
+ err |= restore_extcontext(sc_to_extcontext(sc));
+
+ return err ?: sig;
}
int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
{
int err = 0;
int i;
- unsigned int used_math;
err |= __put_user(regs->cp0_epc, &sc->sc_pc);
@@ -191,19 +431,38 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
}
- used_math = !!used_math();
- err |= __put_user(used_math, &sc->sc_used_math);
- if (used_math) {
- /*
- * Save FPU state to signal context. Signal handler
- * will "inherit" current FPU state.
- */
- err |= protected_save_fp_context(sc);
- }
+ /*
+ * Save FPU state to signal context. Signal handler
+ * will "inherit" current FPU state.
+ */
+ err |= protected_save_fp_context(sc);
+
return err;
}
+static size_t extcontext_max_size(void)
+{
+ size_t sz = 0;
+
+ /*
+ * The assumption here is that between this point & the point at which
+ * the extended context is saved the size of the context should only
+ * ever be able to shrink (if the task is preempted), but never grow.
+ * That is, what this function returns is an upper bound on the size of
+ * the extended context for the current task at the current time.
+ */
+
+ if (thread_msa_context_live())
+ sz += sizeof(struct msa_extcontext);
+
+ /* If any context is saved then we'll append the end marker */
+ if (sz)
+ sz += sizeof(((struct extcontext *)NULL)->magic);
+
+ return sz;
+}
+
int fpcsr_pending(unsigned int __user *fpcsr)
{
int err, sig = 0;
@@ -223,21 +482,8 @@ int fpcsr_pending(unsigned int __user *fpcsr)
return err ?: sig;
}
-static int
-check_and_restore_fp_context(struct sigcontext __user *sc)
-{
- int err, sig;
-
- err = sig = fpcsr_pending(&sc->sc_fpc_csr);
- if (err > 0)
- err = 0;
- err |= protected_restore_fp_context(sc);
- return err ?: sig;
-}
-
int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
{
- unsigned int used_math;
unsigned long treg;
int err = 0;
int i;
@@ -265,19 +511,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
for (i = 1; i < 32; i++)
err |= __get_user(regs->regs[i], &sc->sc_regs[i]);
- err |= __get_user(used_math, &sc->sc_used_math);
- conditional_used_math(used_math);
-
- if (used_math) {
- /* restore fpu context if we have used it before */
- if (!err)
- err = check_and_restore_fp_context(sc);
- } else {
- /* signal handler may have used FPU. Give it up. */
- lose_fpu(0);
- }
-
- return err;
+ return err ?: protected_restore_fp_context(sc);
}
void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
@@ -285,6 +519,9 @@ void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
{
unsigned long sp;
+ /* Leave space for potential extended context */
+ frame_size += extcontext_max_size();
+
/* Default to using normal stack */
sp = regs->regs[29];
@@ -520,7 +757,11 @@ struct mips_abi mips_abi = {
.setup_rt_frame = setup_rt_frame,
.rt_signal_return_offset =
offsetof(struct mips_vdso, rt_signal_trampoline),
- .restart = __NR_restart_syscall
+ .restart = __NR_restart_syscall,
+
+ .off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
+ .off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
+ .off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
};
static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
@@ -616,6 +857,9 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
user_exit();
+ if (thread_info_flags & _TIF_UPROBE)
+ uprobe_notify_resume(regs);
+
/* deal with pending signal delivery */
if (thread_info_flags & _TIF_SIGPENDING)
do_signal(regs);
@@ -629,43 +873,46 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
}
#ifdef CONFIG_SMP
-#ifndef CONFIG_EVA
-static int smp_save_fp_context(struct sigcontext __user *sc)
+static int smp_save_fp_context(void __user *sc)
{
return raw_cpu_has_fpu
- ? _save_fp_context(sc)
+ ? save_hw_fp_context(sc)
: copy_fp_to_sigcontext(sc);
}
-static int smp_restore_fp_context(struct sigcontext __user *sc)
+static int smp_restore_fp_context(void __user *sc)
{
return raw_cpu_has_fpu
- ? _restore_fp_context(sc)
+ ? restore_hw_fp_context(sc)
: copy_fp_from_sigcontext(sc);
}
-#endif /* CONFIG_EVA */
#endif
static int signal_setup(void)
{
-#ifndef CONFIG_EVA
+ /*
+ * The offset from sigcontext to extended context should be the same
+ * regardless of the type of signal, such that userland can always know
+ * where to look if it wishes to find the extended context structures.
+ */
+ BUILD_BUG_ON((offsetof(struct sigframe, sf_extcontext) -
+ offsetof(struct sigframe, sf_sc)) !=
+ (offsetof(struct rt_sigframe, rs_uc.uc_extcontext) -
+ offsetof(struct rt_sigframe, rs_uc.uc_mcontext)));
+
#ifdef CONFIG_SMP
/* For now just do the cpu_has_fpu check when the functions are invoked */
save_fp_context = smp_save_fp_context;
restore_fp_context = smp_restore_fp_context;
#else
if (cpu_has_fpu) {
- save_fp_context = _save_fp_context;
- restore_fp_context = _restore_fp_context;
+ save_fp_context = save_hw_fp_context;
+ restore_fp_context = restore_hw_fp_context;
} else {
save_fp_context = copy_fp_to_sigcontext;
restore_fp_context = copy_fp_from_sigcontext;
}
#endif /* CONFIG_SMP */
-#else
- save_fp_context = copy_fp_to_sigcontext;
- restore_fp_context = copy_fp_from_sigcontext;
-#endif
return 0;
}
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 5d7f26349..f7e89524e 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -36,12 +36,6 @@
#include "signal-common.h"
-static int (*save_fp_context32)(struct sigcontext32 __user *sc);
-static int (*restore_fp_context32)(struct sigcontext32 __user *sc);
-
-extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc);
-
/*
* Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
*/
@@ -74,99 +68,11 @@ struct rt_sigframe32 {
struct ucontext32 rs_uc;
};
-/*
- * Thread saved context copy to/from a signal context presumed to be on the
- * user stack, and therefore accessed with appropriate macros from uaccess.h.
- */
-static int copy_fp_to_sigcontext32(struct sigcontext32 __user *sc)
-{
- int i;
- int err = 0;
- int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
-
- for (i = 0; i < NUM_FPU_REGS; i += inc) {
- err |=
- __put_user(get_fpr64(&current->thread.fpu.fpr[i], 0),
- &sc->sc_fpregs[i]);
- }
- err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-
-static int copy_fp_from_sigcontext32(struct sigcontext32 __user *sc)
-{
- int i;
- int err = 0;
- int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
- u64 fpr_val;
-
- for (i = 0; i < NUM_FPU_REGS; i += inc) {
- err |= __get_user(fpr_val, &sc->sc_fpregs[i]);
- set_fpr64(&current->thread.fpu.fpr[i], 0, fpr_val);
- }
- err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-
-/*
- * sigcontext handlers
- */
-static int protected_save_fp_context32(struct sigcontext32 __user *sc)
-{
- int err;
- while (1) {
- lock_fpu_owner();
- if (is_fpu_owner()) {
- err = save_fp_context32(sc);
- unlock_fpu_owner();
- } else {
- unlock_fpu_owner();
- err = copy_fp_to_sigcontext32(sc);
- }
- if (likely(!err))
- break;
- /* touch the sigcontext and try again */
- err = __put_user(0, &sc->sc_fpregs[0]) |
- __put_user(0, &sc->sc_fpregs[31]) |
- __put_user(0, &sc->sc_fpc_csr);
- if (err)
- break; /* really bad sigcontext */
- }
- return err;
-}
-
-static int protected_restore_fp_context32(struct sigcontext32 __user *sc)
-{
- int err, tmp __maybe_unused;
- while (1) {
- lock_fpu_owner();
- if (is_fpu_owner()) {
- err = restore_fp_context32(sc);
- unlock_fpu_owner();
- } else {
- unlock_fpu_owner();
- err = copy_fp_from_sigcontext32(sc);
- }
- if (likely(!err))
- break;
- /* touch the sigcontext and try again */
- err = __get_user(tmp, &sc->sc_fpregs[0]) |
- __get_user(tmp, &sc->sc_fpregs[31]) |
- __get_user(tmp, &sc->sc_fpc_csr);
- if (err)
- break; /* really bad sigcontext */
- }
- return err;
-}
-
static int setup_sigcontext32(struct pt_regs *regs,
struct sigcontext32 __user *sc)
{
int err = 0;
int i;
- u32 used_math;
err |= __put_user(regs->cp0_epc, &sc->sc_pc);
@@ -186,35 +92,18 @@ static int setup_sigcontext32(struct pt_regs *regs,
err |= __put_user(mflo3(), &sc->sc_lo3);
}
- used_math = !!used_math();
- err |= __put_user(used_math, &sc->sc_used_math);
+ /*
+ * Save FPU state to signal context. Signal handler
+ * will "inherit" current FPU state.
+ */
+ err |= protected_save_fp_context(sc);
- if (used_math) {
- /*
- * Save FPU state to signal context. Signal handler
- * will "inherit" current FPU state.
- */
- err |= protected_save_fp_context32(sc);
- }
return err;
}
-static int
-check_and_restore_fp_context32(struct sigcontext32 __user *sc)
-{
- int err, sig;
-
- err = sig = fpcsr_pending(&sc->sc_fpc_csr);
- if (err > 0)
- err = 0;
- err |= protected_restore_fp_context32(sc);
- return err ?: sig;
-}
-
static int restore_sigcontext32(struct pt_regs *regs,
struct sigcontext32 __user *sc)
{
- u32 used_math;
int err = 0;
s32 treg;
int i;
@@ -238,70 +127,7 @@ static int restore_sigcontext32(struct pt_regs *regs,
for (i = 1; i < 32; i++)
err |= __get_user(regs->regs[i], &sc->sc_regs[i]);
- err |= __get_user(used_math, &sc->sc_used_math);
- conditional_used_math(used_math);
-
- if (used_math) {
- /* restore fpu context if we have used it before */
- if (!err)
- err = check_and_restore_fp_context32(sc);
- } else {
- /* signal handler may have used FPU. Give it up. */
- lose_fpu(0);
- }
-
- return err;
-}
-
-/*
- *
- */
-extern void __put_sigset_unknown_nsig(void);
-extern void __get_sigset_unknown_nsig(void);
-
-static inline int put_sigset(const sigset_t *kbuf, compat_sigset_t __user *ubuf)
-{
- int err = 0;
-
- if (!access_ok(VERIFY_WRITE, ubuf, sizeof(*ubuf)))
- return -EFAULT;
-
- switch (_NSIG_WORDS) {
- default:
- __put_sigset_unknown_nsig();
- case 2:
- err |= __put_user(kbuf->sig[1] >> 32, &ubuf->sig[3]);
- err |= __put_user(kbuf->sig[1] & 0xffffffff, &ubuf->sig[2]);
- case 1:
- err |= __put_user(kbuf->sig[0] >> 32, &ubuf->sig[1]);
- err |= __put_user(kbuf->sig[0] & 0xffffffff, &ubuf->sig[0]);
- }
-
- return err;
-}
-
-static inline int get_sigset(sigset_t *kbuf, const compat_sigset_t __user *ubuf)
-{
- int err = 0;
- unsigned long sig[4];
-
- if (!access_ok(VERIFY_READ, ubuf, sizeof(*ubuf)))
- return -EFAULT;
-
- switch (_NSIG_WORDS) {
- default:
- __get_sigset_unknown_nsig();
- case 2:
- err |= __get_user(sig[3], &ubuf->sig[3]);
- err |= __get_user(sig[2], &ubuf->sig[2]);
- kbuf->sig[1] = sig[2] | (sig[3] << 32);
- case 1:
- err |= __get_user(sig[1], &ubuf->sig[1]);
- err |= __get_user(sig[0], &ubuf->sig[0]);
- kbuf->sig[0] = sig[0] | (sig[1] << 32);
- }
-
- return err;
+ return err ?: protected_restore_fp_context(sc);
}
/*
@@ -585,20 +411,9 @@ struct mips_abi mips_abi_32 = {
.setup_rt_frame = setup_rt_frame_32,
.rt_signal_return_offset =
offsetof(struct mips_vdso, o32_rt_signal_trampoline),
- .restart = __NR_O32_restart_syscall
-};
-
-static int signal32_init(void)
-{
- if (cpu_has_fpu) {
- save_fp_context32 = _save_fp_context32;
- restore_fp_context32 = _restore_fp_context32;
- } else {
- save_fp_context32 = copy_fp_to_sigcontext32;
- restore_fp_context32 = copy_fp_from_sigcontext32;
- }
+ .restart = __NR_O32_restart_syscall,
- return 0;
-}
-
-arch_initcall(signal32_init);
+ .off_sc_fpregs = offsetof(struct sigcontext32, sc_fpregs),
+ .off_sc_fpc_csr = offsetof(struct sigcontext32, sc_fpc_csr),
+ .off_sc_used_math = offsetof(struct sigcontext32, sc_used_math),
+};
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index f1d4751ee..0d017fdca 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -153,5 +153,9 @@ struct mips_abi mips_abi_n32 = {
.setup_rt_frame = setup_rt_frame_n32,
.rt_signal_return_offset =
offsetof(struct mips_vdso, n32_rt_signal_trampoline),
- .restart = __NR_N32_restart_syscall
+ .restart = __NR_N32_restart_syscall,
+
+ .off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
+ .off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
+ .off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
};
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index a31896c33..bd4385a8e 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -42,6 +42,7 @@
#include <asm/mmu_context.h>
#include <asm/time.h>
#include <asm/setup.h>
+#include <asm/maar.h>
cpumask_t cpu_callin_map; /* Bitmask of started secondaries */
@@ -157,6 +158,7 @@ asmlinkage void start_secondary(void)
mips_clockevent_init();
mp_ops->init_secondary();
cpu_report();
+ maar_init();
/*
* XXX parity protection should be folded in here when it's converted
diff --git a/arch/mips/kernel/spram.c b/arch/mips/kernel/spram.c
index d1168d7c3..8489c88f9 100644
--- a/arch/mips/kernel/spram.c
+++ b/arch/mips/kernel/spram.c
@@ -209,6 +209,7 @@ void spram_config(void)
case CPU_PROAPTIV:
case CPU_P5600:
case CPU_QEMU_GENERIC:
+ case CPU_I6400:
config0 = read_c0_config();
/* FIXME: addresses are Malta specific */
if (config0 & (1<<24)) {
diff --git a/arch/mips/kernel/sysrq.c b/arch/mips/kernel/sysrq.c
index 5b539f5fc..5f0553930 100644
--- a/arch/mips/kernel/sysrq.c
+++ b/arch/mips/kernel/sysrq.c
@@ -21,24 +21,12 @@ static DEFINE_SPINLOCK(show_lock);
static void sysrq_tlbdump_single(void *dummy)
{
- const int field = 2 * sizeof(unsigned long);
unsigned long flags;
spin_lock_irqsave(&show_lock, flags);
pr_info("CPU%d:\n", smp_processor_id());
- pr_info("Index : %0x\n", read_c0_index());
- pr_info("Pagemask: %0x\n", read_c0_pagemask());
- pr_info("EntryHi : %0*lx\n", field, read_c0_entryhi());
- pr_info("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
- pr_info("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
- pr_info("Wired : %0x\n", read_c0_wired());
- pr_info("Pagegrain: %0x\n", read_c0_pagegrain());
- if (cpu_has_htw) {
- pr_info("PWField : %0*lx\n", field, read_c0_pwfield());
- pr_info("PWSize : %0*lx\n", field, read_c0_pwsize());
- pr_info("PWCtl : %0x\n", read_c0_pwctl());
- }
+ dump_tlb_regs();
pr_info("\n");
dump_tlb_all();
pr_info("\n");
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 8ea28e6ab..fdb392b27 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -370,11 +370,6 @@ void show_registers(struct pt_regs *regs)
set_fs(old_fs);
}
-static int regs_to_trapnr(struct pt_regs *regs)
-{
- return (regs->cp0_cause >> 2) & 0x1f;
-}
-
static DEFINE_RAW_SPINLOCK(die_lock);
void __noreturn die(const char *str, struct pt_regs *regs)
@@ -384,7 +379,7 @@ void __noreturn die(const char *str, struct pt_regs *regs)
oops_enter();
- if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_OOPS, str, regs, 0, current->thread.trap_nr,
SIGSEGV) == NOTIFY_STOP)
sig = 0;
@@ -470,7 +465,7 @@ asmlinkage void do_be(struct pt_regs *regs)
printk(KERN_ALERT "%s bus error, epc == %0*lx, ra == %0*lx\n",
data ? "Data" : "Instruction",
field, regs->cp0_epc, field, regs->regs[31]);
- if (notify_die(DIE_OOPS, "bus error", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_OOPS, "bus error", regs, 0, current->thread.trap_nr,
SIGBUS) == NOTIFY_STOP)
goto out;
@@ -826,7 +821,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
int sig;
prev_state = exception_enter();
- if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_FP, "FP exception", regs, 0, current->thread.trap_nr,
SIGFPE) == NOTIFY_STOP)
goto out;
@@ -882,11 +877,12 @@ void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
char b[40];
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
- if (kgdb_ll_trap(DIE_TRAP, str, regs, code, regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ if (kgdb_ll_trap(DIE_TRAP, str, regs, code, current->thread.trap_nr,
+ SIGTRAP) == NOTIFY_STOP)
return;
#endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
- if (notify_die(DIE_TRAP, str, regs, code, regs_to_trapnr(regs),
+ if (notify_die(DIE_TRAP, str, regs, code, current->thread.trap_nr,
SIGTRAP) == NOTIFY_STOP)
return;
@@ -948,6 +944,7 @@ asmlinkage void do_bp(struct pt_regs *regs)
set_fs(KERNEL_DS);
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (get_isa16_mode(regs->cp0_epc)) {
u16 instr[2];
@@ -987,15 +984,27 @@ asmlinkage void do_bp(struct pt_regs *regs)
* pertain to them.
*/
switch (bcode) {
+ case BRK_UPROBE:
+ if (notify_die(DIE_UPROBE, "uprobe", regs, bcode,
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
+ goto out;
+ else
+ break;
+ case BRK_UPROBE_XOL:
+ if (notify_die(DIE_UPROBE_XOL, "uprobe_xol", regs, bcode,
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
+ goto out;
+ else
+ break;
case BRK_KPROBE_BP:
if (notify_die(DIE_BREAK, "debug", regs, bcode,
- regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
goto out;
else
break;
case BRK_KPROBE_SSTEPBP:
if (notify_die(DIE_SSTEPBP, "single_step", regs, bcode,
- regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
goto out;
else
break;
@@ -1028,6 +1037,7 @@ asmlinkage void do_tr(struct pt_regs *regs)
set_fs(get_ds());
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (get_isa16_mode(regs->cp0_epc)) {
if (__get_user(instr[0], (u16 __user *)(epc + 0)) ||
__get_user(instr[1], (u16 __user *)(epc + 2)))
@@ -1094,8 +1104,9 @@ asmlinkage void do_ri(struct pt_regs *regs)
no_r2_instr:
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
- if (notify_die(DIE_RI, "RI Fault", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_RI, "RI Fault", regs, 0, current->thread.trap_nr,
SIGILL) == NOTIFY_STOP)
goto out;
@@ -1444,8 +1455,9 @@ asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr)
enum ctx_state prev_state;
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (notify_die(DIE_MSAFP, "MSA FP exception", regs, 0,
- regs_to_trapnr(regs), SIGFPE) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGFPE) == NOTIFY_STOP)
goto out;
/* Clear MSACSR.Cause before enabling interrupts */
@@ -1523,7 +1535,6 @@ asmlinkage void do_watch(struct pt_regs *regs)
asmlinkage void do_mcheck(struct pt_regs *regs)
{
- const int field = 2 * sizeof(unsigned long);
int multi_match = regs->cp0_status & ST0_TS;
enum ctx_state prev_state;
mm_segment_t old_fs = get_fs();
@@ -1532,19 +1543,8 @@ asmlinkage void do_mcheck(struct pt_regs *regs)
show_regs(regs);
if (multi_match) {
- pr_err("Index : %0x\n", read_c0_index());
- pr_err("Pagemask: %0x\n", read_c0_pagemask());
- pr_err("EntryHi : %0*lx\n", field, read_c0_entryhi());
- pr_err("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
- pr_err("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
- pr_err("Wired : %0x\n", read_c0_wired());
- pr_err("Pagegrain: %0x\n", read_c0_pagegrain());
- if (cpu_has_htw) {
- pr_err("PWField : %0*lx\n", field, read_c0_pwfield());
- pr_err("PWSize : %0*lx\n", field, read_c0_pwsize());
- pr_err("PWCtl : %0x\n", read_c0_pwctl());
- }
- pr_err("\n");
+ dump_tlb_regs();
+ pr_info("\n");
dump_tlb_all();
}
@@ -1651,6 +1651,7 @@ static inline void parity_protection_init(void)
case CPU_PROAPTIV:
case CPU_P5600:
case CPU_QEMU_GENERIC:
+ case CPU_I6400:
{
#define ERRCTL_PE 0x80000000
#define ERRCTL_L2P 0x00800000
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index eb3efd137..990354dd6 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -891,6 +891,9 @@ static void emulate_load_store_insn(struct pt_regs *regs,
#ifdef CONFIG_EVA
mm_segment_t seg;
#endif
+ union fpureg *fpr;
+ enum msa_2b_fmt df;
+ unsigned int wd;
origpc = (unsigned long)pc;
orig31 = regs->regs[31];
@@ -1202,6 +1205,75 @@ static void emulate_load_store_insn(struct pt_regs *regs,
break;
return;
+ case msa_op:
+ if (!cpu_has_msa)
+ goto sigill;
+
+ /*
+ * If we've reached this point then userland should have taken
+ * the MSA disabled exception & initialised vector context at
+ * some point in the past.
+ */
+ BUG_ON(!thread_msa_context_live());
+
+ df = insn.msa_mi10_format.df;
+ wd = insn.msa_mi10_format.wd;
+ fpr = &current->thread.fpu.fpr[wd];
+
+ switch (insn.msa_mi10_format.func) {
+ case msa_ld_op:
+ if (!access_ok(VERIFY_READ, addr, sizeof(*fpr)))
+ goto sigbus;
+
+ /*
+ * Disable preemption to avoid a race between copying
+ * state from userland, migrating to another CPU and
+ * updating the hardware vector register below.
+ */
+ preempt_disable();
+
+ res = __copy_from_user_inatomic(fpr, addr,
+ sizeof(*fpr));
+ if (res)
+ goto fault;
+
+ /*
+ * Update the hardware register if it is in use by the
+ * task in this quantum, in order to avoid having to
+ * save & restore the whole vector context.
+ */
+ if (test_thread_flag(TIF_USEDMSA))
+ write_msa_wr(wd, fpr, df);
+
+ preempt_enable();
+ break;
+
+ case msa_st_op:
+ if (!access_ok(VERIFY_WRITE, addr, sizeof(*fpr)))
+ goto sigbus;
+
+ /*
+ * Update from the hardware register if it is in use by
+ * the task in this quantum, in order to avoid having to
+ * save & restore the whole vector context.
+ */
+ preempt_disable();
+ if (test_thread_flag(TIF_USEDMSA))
+ read_msa_wr(wd, fpr, df);
+ preempt_enable();
+
+ res = __copy_to_user_inatomic(addr, fpr, sizeof(*fpr));
+ if (res)
+ goto fault;
+ break;
+
+ default:
+ goto sigbus;
+ }
+
+ compute_return_epc(regs);
+ break;
+
#ifndef CONFIG_CPU_MIPSR6
/*
* COP2 is available to implementor for application specific use.
@@ -2240,5 +2312,5 @@ static int __init debugfs_unaligned(void)
return -ENOMEM;
return 0;
}
-__initcall(debugfs_unaligned);
+arch_initcall(debugfs_unaligned);
#endif
diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
new file mode 100644
index 000000000..8452d933a
--- /dev/null
+++ b/arch/mips/kernel/uprobes.c
@@ -0,0 +1,341 @@
+#include <linux/highmem.h>
+#include <linux/kdebug.h>
+#include <linux/types.h>
+#include <linux/notifier.h>
+#include <linux/sched.h>
+#include <linux/uprobes.h>
+
+#include <asm/branch.h>
+#include <asm/cpu-features.h>
+#include <asm/ptrace.h>
+#include <asm/inst.h>
+
+static inline int insn_has_delay_slot(const union mips_instruction insn)
+{
+ switch (insn.i_format.opcode) {
+ /*
+ * jr and jalr are in r_format format.
+ */
+ case spec_op:
+ switch (insn.r_format.func) {
+ case jalr_op:
+ case jr_op:
+ return 1;
+ }
+ break;
+
+ /*
+ * This group contains:
+ * bltz_op, bgez_op, bltzl_op, bgezl_op,
+ * bltzal_op, bgezal_op, bltzall_op, bgezall_op.
+ */
+ case bcond_op:
+ switch (insn.i_format.rt) {
+ case bltz_op:
+ case bltzl_op:
+ case bgez_op:
+ case bgezl_op:
+ case bltzal_op:
+ case bltzall_op:
+ case bgezal_op:
+ case bgezall_op:
+ case bposge32_op:
+ return 1;
+ }
+ break;
+
+ /*
+ * These are unconditional and in j_format.
+ */
+ case jal_op:
+ case j_op:
+ case beq_op:
+ case beql_op:
+ case bne_op:
+ case bnel_op:
+ case blez_op: /* not really i_format */
+ case blezl_op:
+ case bgtz_op:
+ case bgtzl_op:
+ return 1;
+
+ /*
+ * And now the FPA/cp1 branch instructions.
+ */
+ case cop1_op:
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ case lwc2_op: /* This is bbit0 on Octeon */
+ case ldc2_op: /* This is bbit032 on Octeon */
+ case swc2_op: /* This is bbit1 on Octeon */
+ case sdc2_op: /* This is bbit132 on Octeon */
+#endif
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * arch_uprobe_analyze_insn - instruction analysis including validity and fixups.
+ * @mm: the probed address space.
+ * @arch_uprobe: the probepoint information.
+ * @addr: virtual address at which to install the probepoint
+ * Return 0 on success or a -ve number on error.
+ */
+int arch_uprobe_analyze_insn(struct arch_uprobe *aup,
+ struct mm_struct *mm, unsigned long addr)
+{
+ union mips_instruction inst;
+
+ /*
+ * For the time being this also blocks attempts to use uprobes with
+ * MIPS16 and microMIPS.
+ */
+ if (addr & 0x03)
+ return -EINVAL;
+
+ inst.word = aup->insn[0];
+ aup->ixol[0] = aup->insn[insn_has_delay_slot(inst)];
+ aup->ixol[1] = UPROBE_BRK_UPROBE_XOL; /* NOP */
+
+ return 0;
+}
+
+/**
+ * is_trap_insn - check if the instruction is a trap variant
+ * @insn: instruction to be checked.
+ * Returns true if @insn is a trap variant.
+ *
+ * This definition overrides the weak definition in kernel/events/uprobes.c.
+ * and is needed for the case where an architecture has multiple trap
+ * instructions (like PowerPC or MIPS). We treat BREAK just like the more
+ * modern conditional trap instructions.
+ */
+bool is_trap_insn(uprobe_opcode_t *insn)
+{
+ union mips_instruction inst;
+
+ inst.word = *insn;
+
+ switch (inst.i_format.opcode) {
+ case spec_op:
+ switch (inst.r_format.func) {
+ case break_op:
+ case teq_op:
+ case tge_op:
+ case tgeu_op:
+ case tlt_op:
+ case tltu_op:
+ case tne_op:
+ return 1;
+ }
+ break;
+
+ case bcond_op: /* Yes, really ... */
+ switch (inst.u_format.rt) {
+ case teqi_op:
+ case tgei_op:
+ case tgeiu_op:
+ case tlti_op:
+ case tltiu_op:
+ case tnei_op:
+ return 1;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+#define UPROBE_TRAP_NR ULONG_MAX
+
+/*
+ * arch_uprobe_pre_xol - prepare to execute out of line.
+ * @auprobe: the probepoint information.
+ * @regs: reflects the saved user state of current task.
+ */
+int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs)
+{
+ struct uprobe_task *utask = current->utask;
+ union mips_instruction insn;
+
+ /*
+ * Now find the EPC where to resume after the breakpoint has been
+ * dealt with. This may require emulation of a branch.
+ */
+ aup->resume_epc = regs->cp0_epc + 4;
+ if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) {
+ unsigned long epc;
+
+ epc = regs->cp0_epc;
+ __compute_return_epc_for_insn(regs, insn);
+ aup->resume_epc = regs->cp0_epc;
+ }
+
+ utask->autask.saved_trap_nr = current->thread.trap_nr;
+ current->thread.trap_nr = UPROBE_TRAP_NR;
+ regs->cp0_epc = current->utask->xol_vaddr;
+
+ return 0;
+}
+
+int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs)
+{
+ struct uprobe_task *utask = current->utask;
+
+ current->thread.trap_nr = utask->autask.saved_trap_nr;
+ regs->cp0_epc = aup->resume_epc;
+
+ return 0;
+}
+
+/*
+ * If xol insn itself traps and generates a signal(Say,
+ * SIGILL/SIGSEGV/etc), then detect the case where a singlestepped
+ * instruction jumps back to its own address. It is assumed that anything
+ * like do_page_fault/do_trap/etc sets thread.trap_nr != -1.
+ *
+ * arch_uprobe_pre_xol/arch_uprobe_post_xol save/restore thread.trap_nr,
+ * arch_uprobe_xol_was_trapped() simply checks that ->trap_nr is not equal to
+ * UPROBE_TRAP_NR == -1 set by arch_uprobe_pre_xol().
+ */
+bool arch_uprobe_xol_was_trapped(struct task_struct *tsk)
+{
+ if (tsk->thread.trap_nr != UPROBE_TRAP_NR)
+ return true;
+
+ return false;
+}
+
+int arch_uprobe_exception_notify(struct notifier_block *self,
+ unsigned long val, void *data)
+{
+ struct die_args *args = data;
+ struct pt_regs *regs = args->regs;
+
+ /* regs == NULL is a kernel bug */
+ if (WARN_ON(!regs))
+ return NOTIFY_DONE;
+
+ /* We are only interested in userspace traps */
+ if (!user_mode(regs))
+ return NOTIFY_DONE;
+
+ switch (val) {
+ case DIE_BREAK:
+ if (uprobe_pre_sstep_notifier(regs))
+ return NOTIFY_STOP;
+ break;
+ case DIE_UPROBE_XOL:
+ if (uprobe_post_sstep_notifier(regs))
+ return NOTIFY_STOP;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * This function gets called when XOL instruction either gets trapped or
+ * the thread has a fatal signal. Reset the instruction pointer to its
+ * probed address for the potential restart or for post mortem analysis.
+ */
+void arch_uprobe_abort_xol(struct arch_uprobe *aup,
+ struct pt_regs *regs)
+{
+ struct uprobe_task *utask = current->utask;
+
+ instruction_pointer_set(regs, utask->vaddr);
+}
+
+unsigned long arch_uretprobe_hijack_return_addr(
+ unsigned long trampoline_vaddr, struct pt_regs *regs)
+{
+ unsigned long ra;
+
+ ra = regs->regs[31];
+
+ /* Replace the return address with the trampoline address */
+ regs->regs[31] = ra;
+
+ return ra;
+}
+
+/**
+ * set_swbp - store breakpoint at a given address.
+ * @auprobe: arch specific probepoint information.
+ * @mm: the probed process address space.
+ * @vaddr: the virtual address to insert the opcode.
+ *
+ * For mm @mm, store the breakpoint instruction at @vaddr.
+ * Return 0 (success) or a negative errno.
+ *
+ * This version overrides the weak version in kernel/events/uprobes.c.
+ * It is required to handle MIPS16 and microMIPS.
+ */
+int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm,
+ unsigned long vaddr)
+{
+ return uprobe_write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
+}
+
+/**
+ * set_orig_insn - Restore the original instruction.
+ * @mm: the probed process address space.
+ * @auprobe: arch specific probepoint information.
+ * @vaddr: the virtual address to insert the opcode.
+ *
+ * For mm @mm, restore the original opcode (opcode) at @vaddr.
+ * Return 0 (success) or a negative errno.
+ *
+ * This overrides the weak version in kernel/events/uprobes.c.
+ */
+int set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
+ unsigned long vaddr)
+{
+ return uprobe_write_opcode(mm, vaddr,
+ *(uprobe_opcode_t *)&auprobe->orig_inst[0].word);
+}
+
+void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
+ void *src, unsigned long len)
+{
+ void *kaddr;
+
+ /* Initialize the slot */
+ kaddr = kmap_atomic(page);
+ memcpy(kaddr + (vaddr & ~PAGE_MASK), src, len);
+ kunmap_atomic(kaddr);
+
+ /*
+ * The MIPS version of flush_icache_range will operate safely on
+ * user space addresses and more importantly, it doesn't require a
+ * VMA argument.
+ */
+ flush_icache_range(vaddr, vaddr + len);
+}
+
+/**
+ * uprobe_get_swbp_addr - compute address of swbp given post-swbp regs
+ * @regs: Reflects the saved state of the task after it has hit a breakpoint
+ * instruction.
+ * Return the address of the breakpoint instruction.
+ *
+ * This overrides the weak version in kernel/events/uprobes.c.
+ */
+unsigned long uprobe_get_swbp_addr(struct pt_regs *regs)
+{
+ return instruction_pointer(regs);
+}
+
+/*
+ * See if the instruction can be emulated.
+ * Returns true if instruction was emulated, false otherwise.
+ *
+ * For now we always emulate so this function just returns 0.
+ */
+bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
+{
+ return 0;
+}
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 11da31456..9067b651c 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -817,6 +817,7 @@ static int vpe_open(struct inode *inode, struct file *filp)
static int vpe_release(struct inode *inode, struct file *filp)
{
+#if defined(CONFIG_MIPS_VPE_LOADER_MT) || defined(CONFIG_MIPS_VPE_LOADER_CMP)
struct vpe *v;
Elf_Ehdr *hdr;
int ret = 0;
@@ -827,7 +828,7 @@ static int vpe_release(struct inode *inode, struct file *filp)
hdr = (Elf_Ehdr *) v->pbuffer;
if (memcmp(hdr->e_ident, ELFMAG, SELFMAG) == 0) {
- if ((vpe_elfload(v) >= 0) && vpe_run) {
+ if (vpe_elfload(v) >= 0) {
vpe_run(v);
} else {
pr_warn("VPE loader: ELF load failed.\n");
@@ -850,6 +851,10 @@ static int vpe_release(struct inode *inode, struct file *filp)
v->plen = 0;
return ret;
+#else
+ pr_warn("VPE loader: ELF load failed.\n");
+ return -ENOEXEC;
+#endif
}
static ssize_t vpe_write(struct file *file, const char __user *buffer,
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index d5fa3eaf3..41b1b090f 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -1581,7 +1581,7 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc,
base = (inst >> 21) & 0x1f;
op_inst = (inst >> 16) & 0x1f;
- offset = inst & 0xffff;
+ offset = (int16_t)inst;
cache = (inst >> 16) & 0x3;
op = (inst >> 18) & 0x7;
diff --git a/arch/mips/kvm/locore.S b/arch/mips/kvm/locore.S
index c56724038..d1ee95a7f 100644
--- a/arch/mips/kvm/locore.S
+++ b/arch/mips/kvm/locore.S
@@ -165,9 +165,11 @@ FEXPORT(__kvm_mips_vcpu_run)
FEXPORT(__kvm_mips_load_asid)
/* Set the ASID for the Guest Kernel */
- INT_SLL t0, t0, 1 /* with kseg0 @ 0x40000000, kernel */
- /* addresses shift to 0x80000000 */
- bltz t0, 1f /* If kernel */
+ PTR_L t0, VCPU_COP0(k1)
+ LONG_L t0, COP0_STATUS(t0)
+ andi t0, KSU_USER | ST0_ERL | ST0_EXL
+ xori t0, KSU_USER
+ bnez t0, 1f /* If kernel */
INT_ADDIU t1, k1, VCPU_GUEST_KERNEL_ASID /* (BD) */
INT_ADDIU t1, k1, VCPU_GUEST_USER_ASID /* else user */
1:
@@ -482,9 +484,11 @@ __kvm_mips_return_to_guest:
mtc0 t0, CP0_EPC
/* Set the ASID for the Guest Kernel */
- INT_SLL t0, t0, 1 /* with kseg0 @ 0x40000000, kernel */
- /* addresses shift to 0x80000000 */
- bltz t0, 1f /* If kernel */
+ PTR_L t0, VCPU_COP0(k1)
+ LONG_L t0, COP0_STATUS(t0)
+ andi t0, KSU_USER | ST0_ERL | ST0_EXL
+ xori t0, KSU_USER
+ bnez t0, 1f /* If kernel */
INT_ADDIU t1, k1, VCPU_GUEST_KERNEL_ASID /* (BD) */
INT_ADDIU t1, k1, VCPU_GUEST_USER_ASID /* else user */
1:
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index cd4c129ce..b9b803fac 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -55,6 +55,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "msa_disabled", VCPU_STAT(msa_disabled_exits), KVM_STAT_VCPU },
{ "flush_dcache", VCPU_STAT(flush_dcache_exits), KVM_STAT_VCPU },
{ "halt_successful_poll", VCPU_STAT(halt_successful_poll), KVM_STAT_VCPU },
+ { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), KVM_STAT_VCPU },
{ "halt_wakeup", VCPU_STAT(halt_wakeup), KVM_STAT_VCPU },
{NULL}
};
@@ -278,7 +279,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
if (!gebase) {
err = -ENOMEM;
- goto out_free_cpu;
+ goto out_uninit_cpu;
}
kvm_debug("Allocated %d bytes for KVM Exception Handlers @ %p\n",
ALIGN(size, PAGE_SIZE), gebase);
@@ -342,6 +343,9 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
out_free_gebase:
kfree(gebase);
+out_uninit_cpu:
+ kvm_vcpu_uninit(vcpu);
+
out_free_cpu:
kfree(vcpu);
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 3fc2e6d70..a0706fd4c 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -99,6 +99,23 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ if (unlikely(!clk_good(clk)))
+ return 0;
+ if (clk->rates && *clk->rates) {
+ unsigned long *r = clk->rates;
+
+ while (*r && (*r != rate))
+ r++;
+ if (!*r) {
+ return clk->rate;
+ }
+ }
+ return rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
int clk_enable(struct clk *clk)
{
if (unlikely(!clk_good(clk)))
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
index a57959e64..c710d9699 100644
--- a/arch/mips/lasat/sysctl.c
+++ b/arch/mips/lasat/sysctl.c
@@ -270,4 +270,4 @@ static int __init lasat_register_sysctl(void)
return 0;
}
-__initcall(lasat_register_sysctl);
+arch_initcall(lasat_register_sysctl);
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
index 167f35634..92a37319e 100644
--- a/arch/mips/lib/dump_tlb.c
+++ b/arch/mips/lib/dump_tlb.c
@@ -13,6 +13,33 @@
#include <asm/pgtable.h>
#include <asm/tlbdebug.h>
+void dump_tlb_regs(void)
+{
+ const int field = 2 * sizeof(unsigned long);
+
+ pr_info("Index : %0x\n", read_c0_index());
+ pr_info("PageMask : %0x\n", read_c0_pagemask());
+ pr_info("EntryHi : %0*lx\n", field, read_c0_entryhi());
+ pr_info("EntryLo0 : %0*lx\n", field, read_c0_entrylo0());
+ pr_info("EntryLo1 : %0*lx\n", field, read_c0_entrylo1());
+ pr_info("Wired : %0x\n", read_c0_wired());
+ switch (current_cpu_type()) {
+ case CPU_R10000:
+ case CPU_R12000:
+ case CPU_R14000:
+ case CPU_R16000:
+ pr_info("FrameMask: %0x\n", read_c0_framemask());
+ break;
+ }
+ if (cpu_has_small_pages || cpu_has_rixi || cpu_has_xpa)
+ pr_info("PageGrain: %0x\n", read_c0_pagegrain());
+ if (cpu_has_htw) {
+ pr_info("PWField : %0*lx\n", field, read_c0_pwfield());
+ pr_info("PWSize : %0*lx\n", field, read_c0_pwsize());
+ pr_info("PWCtl : %0x\n", read_c0_pwctl());
+ }
+}
+
static inline const char *msk2str(unsigned int mask)
{
switch (mask) {
@@ -87,7 +114,7 @@ static void dump_tlb(int first, int last)
* leave only a single G bit set after a machine check exception
* due to duplicate TLB entry.
*/
- if (!((entrylo0 | entrylo1) & MIPS_ENTRYLO_G) &&
+ if (!((entrylo0 | entrylo1) & ENTRYLO_G) &&
(entryhi & 0xff) != asid)
continue;
@@ -96,8 +123,8 @@ static void dump_tlb(int first, int last)
*/
printk("Index: %2d pgmask=%s ", i, msk2str(pagemask));
- c0 = (entrylo0 & MIPS_ENTRYLO_C) >> MIPS_ENTRYLO_C_SHIFT;
- c1 = (entrylo1 & MIPS_ENTRYLO_C) >> MIPS_ENTRYLO_C_SHIFT;
+ c0 = (entrylo0 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
+ c1 = (entrylo1 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
printk("va=%0*lx asid=%02lx\n",
vwidth, (entryhi & ~0x1fffUL),
@@ -114,9 +141,9 @@ static void dump_tlb(int first, int last)
(entrylo0 & MIPS_ENTRYLO_XI) ? 1 : 0);
printk("pa=%0*llx c=%d d=%d v=%d g=%d] [",
pwidth, pa, c0,
- (entrylo0 & MIPS_ENTRYLO_D) ? 1 : 0,
- (entrylo0 & MIPS_ENTRYLO_V) ? 1 : 0,
- (entrylo0 & MIPS_ENTRYLO_G) ? 1 : 0);
+ (entrylo0 & ENTRYLO_D) ? 1 : 0,
+ (entrylo0 & ENTRYLO_V) ? 1 : 0,
+ (entrylo0 & ENTRYLO_G) ? 1 : 0);
/* RI/XI are in awkward places, so mask them off separately */
pa = entrylo1 & ~(MIPS_ENTRYLO_RI | MIPS_ENTRYLO_XI);
if (xpa)
@@ -128,9 +155,9 @@ static void dump_tlb(int first, int last)
(entrylo1 & MIPS_ENTRYLO_XI) ? 1 : 0);
printk("pa=%0*llx c=%d d=%d v=%d g=%d]\n",
pwidth, pa, c1,
- (entrylo1 & MIPS_ENTRYLO_D) ? 1 : 0,
- (entrylo1 & MIPS_ENTRYLO_V) ? 1 : 0,
- (entrylo1 & MIPS_ENTRYLO_G) ? 1 : 0);
+ (entrylo1 & ENTRYLO_D) ? 1 : 0,
+ (entrylo1 & ENTRYLO_V) ? 1 : 0,
+ (entrylo1 & ENTRYLO_G) ? 1 : 0);
}
printk("\n");
diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c
index 8e0d3cff8..cfcbb5218 100644
--- a/arch/mips/lib/r3k_dump_tlb.c
+++ b/arch/mips/lib/r3k_dump_tlb.c
@@ -14,6 +14,17 @@
#include <asm/pgtable.h>
#include <asm/tlbdebug.h>
+extern int r3k_have_wired_reg;
+
+void dump_tlb_regs(void)
+{
+ pr_info("Index : %0x\n", read_c0_index());
+ pr_info("EntryHi : %0lx\n", read_c0_entryhi());
+ pr_info("EntryLo : %0lx\n", read_c0_entrylo0());
+ if (r3k_have_wired_reg)
+ pr_info("Wired : %0x\n", read_c0_wired());
+}
+
static void dump_tlb(int first, int last)
{
int i;
diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c
index df0f850d6..0996b025e 100644
--- a/arch/mips/loongson32/common/time.c
+++ b/arch/mips/loongson32/common/time.c
@@ -126,26 +126,34 @@ static irqreturn_t ls1x_clockevent_isr(int irq, void *devid)
return IRQ_HANDLED;
}
-static void ls1x_clockevent_set_mode(enum clock_event_mode mode,
- struct clock_event_device *cd)
+static int ls1x_clockevent_set_state_periodic(struct clock_event_device *cd)
{
raw_spin_lock(&ls1x_timer_lock);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- ls1x_pwmtimer_set_period(ls1x_jiffies_per_tick);
- ls1x_pwmtimer_restart();
- case CLOCK_EVT_MODE_RESUME:
- __raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_SHUTDOWN:
- __raw_writel(__raw_readl(timer_base + PWM_CTRL) & ~CNT_EN,
- timer_base + PWM_CTRL);
- break;
- default:
- break;
- }
+ ls1x_pwmtimer_set_period(ls1x_jiffies_per_tick);
+ ls1x_pwmtimer_restart();
+ __raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
raw_spin_unlock(&ls1x_timer_lock);
+
+ return 0;
+}
+
+static int ls1x_clockevent_tick_resume(struct clock_event_device *cd)
+{
+ raw_spin_lock(&ls1x_timer_lock);
+ __raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
+ raw_spin_unlock(&ls1x_timer_lock);
+
+ return 0;
+}
+
+static int ls1x_clockevent_set_state_shutdown(struct clock_event_device *cd)
+{
+ raw_spin_lock(&ls1x_timer_lock);
+ __raw_writel(__raw_readl(timer_base + PWM_CTRL) & ~CNT_EN,
+ timer_base + PWM_CTRL);
+ raw_spin_unlock(&ls1x_timer_lock);
+
+ return 0;
}
static int ls1x_clockevent_set_next(unsigned long evt,
@@ -160,12 +168,15 @@ static int ls1x_clockevent_set_next(unsigned long evt,
}
static struct clock_event_device ls1x_clockevent = {
- .name = "ls1x-pwmtimer",
- .features = CLOCK_EVT_FEAT_PERIODIC,
- .rating = 300,
- .irq = LS1X_TIMER_IRQ,
- .set_next_event = ls1x_clockevent_set_next,
- .set_mode = ls1x_clockevent_set_mode,
+ .name = "ls1x-pwmtimer",
+ .features = CLOCK_EVT_FEAT_PERIODIC,
+ .rating = 300,
+ .irq = LS1X_TIMER_IRQ,
+ .set_next_event = ls1x_clockevent_set_next,
+ .set_state_shutdown = ls1x_clockevent_set_state_shutdown,
+ .set_state_periodic = ls1x_clockevent_set_state_periodic,
+ .set_state_oneshot = ls1x_clockevent_set_state_shutdown,
+ .tick_resume = ls1x_clockevent_tick_resume,
};
static struct irqaction ls1x_pwmtimer_irqaction = {
diff --git a/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
index 875037063..da77d4125 100644
--- a/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
+++ b/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
@@ -51,40 +51,36 @@ void enable_mfgpt0_counter(void)
}
EXPORT_SYMBOL(enable_mfgpt0_counter);
-static void init_mfgpt_timer(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int mfgpt_timer_set_periodic(struct clock_event_device *evt)
{
raw_spin_lock(&mfgpt_lock);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- outw(COMPARE, MFGPT0_CMP2); /* set comparator2 */
- outw(0, MFGPT0_CNT); /* set counter to 0 */
- enable_mfgpt0_counter();
- break;
-
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
- evt->mode == CLOCK_EVT_MODE_ONESHOT)
- disable_mfgpt0_counter();
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- /* The oneshot mode have very high deviation, Not use it! */
- break;
-
- case CLOCK_EVT_MODE_RESUME:
- /* Nothing to do here */
- break;
- }
+ outw(COMPARE, MFGPT0_CMP2); /* set comparator2 */
+ outw(0, MFGPT0_CNT); /* set counter to 0 */
+ enable_mfgpt0_counter();
+
raw_spin_unlock(&mfgpt_lock);
+ return 0;
+}
+
+static int mfgpt_timer_shutdown(struct clock_event_device *evt)
+{
+ if (clockevent_state_periodic(evt) || clockevent_state_oneshot(evt)) {
+ raw_spin_lock(&mfgpt_lock);
+ disable_mfgpt0_counter();
+ raw_spin_unlock(&mfgpt_lock);
+ }
+
+ return 0;
}
static struct clock_event_device mfgpt_clockevent = {
.name = "mfgpt",
.features = CLOCK_EVT_FEAT_PERIODIC,
- .set_mode = init_mfgpt_timer,
+
+ /* The oneshot mode have very high deviation, don't use it! */
+ .set_state_shutdown = mfgpt_timer_shutdown,
+ .set_state_periodic = mfgpt_timer_set_periodic,
.irq = CS5536_MFGPT_INTR,
};
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 2c6b989c1..4ffa6fc81 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -14,9 +14,6 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
{
void *ret;
- if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
- return ret;
-
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
@@ -46,11 +43,6 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
static void loongson_dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
{
- int order = get_order(size);
-
- if (dma_release_from_coherent(dev, order, vaddr))
- return;
-
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
@@ -93,6 +85,9 @@ static void loongson_dma_sync_sg_for_device(struct device *dev,
static int loongson_dma_set_mask(struct device *dev, u64 mask)
{
+ if (!dev->dma_mask || !dma_supported(dev, mask))
+ return -EIO;
+
if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) {
*dev->dma_mask = DMA_BIT_MASK(loongson_sysconf.dma_mask_bits);
return -EIO;
diff --git a/arch/mips/loongson64/loongson-3/hpet.c b/arch/mips/loongson64/loongson-3/hpet.c
index 5c21cd3bd..bf9f1a77f 100644
--- a/arch/mips/loongson64/loongson-3/hpet.c
+++ b/arch/mips/loongson64/loongson-3/hpet.c
@@ -78,55 +78,77 @@ static void hpet_enable_legacy_int(void)
/* Do nothing on Loongson-3 */
}
-static void hpet_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int hpet_set_state_periodic(struct clock_event_device *evt)
{
- int cfg = 0;
+ int cfg;
spin_lock(&hpet_lock);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- pr_info("set clock event to periodic mode!\n");
- /* stop counter */
- hpet_stop_counter();
-
- /* enables the timer0 to generate a periodic interrupt */
- cfg = hpet_read(HPET_T0_CFG);
- cfg &= ~HPET_TN_LEVEL;
- cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
- HPET_TN_SETVAL | HPET_TN_32BIT;
- hpet_write(HPET_T0_CFG, cfg);
-
- /* set the comparator */
- hpet_write(HPET_T0_CMP, HPET_COMPARE_VAL);
- udelay(1);
- hpet_write(HPET_T0_CMP, HPET_COMPARE_VAL);
-
- /* start counter */
- hpet_start_counter();
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- cfg = hpet_read(HPET_T0_CFG);
- cfg &= ~HPET_TN_ENABLE;
- hpet_write(HPET_T0_CFG, cfg);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- pr_info("set clock event to one shot mode!\n");
- cfg = hpet_read(HPET_T0_CFG);
- /* set timer0 type
- * 1 : periodic interrupt
- * 0 : non-periodic(oneshot) interrupt
- */
- cfg &= ~HPET_TN_PERIODIC;
- cfg |= HPET_TN_ENABLE | HPET_TN_32BIT;
- hpet_write(HPET_T0_CFG, cfg);
- break;
- case CLOCK_EVT_MODE_RESUME:
- hpet_enable_legacy_int();
- break;
- }
+
+ pr_info("set clock event to periodic mode!\n");
+ /* stop counter */
+ hpet_stop_counter();
+
+ /* enables the timer0 to generate a periodic interrupt */
+ cfg = hpet_read(HPET_T0_CFG);
+ cfg &= ~HPET_TN_LEVEL;
+ cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC | HPET_TN_SETVAL |
+ HPET_TN_32BIT;
+ hpet_write(HPET_T0_CFG, cfg);
+
+ /* set the comparator */
+ hpet_write(HPET_T0_CMP, HPET_COMPARE_VAL);
+ udelay(1);
+ hpet_write(HPET_T0_CMP, HPET_COMPARE_VAL);
+
+ /* start counter */
+ hpet_start_counter();
+
+ spin_unlock(&hpet_lock);
+ return 0;
+}
+
+static int hpet_set_state_shutdown(struct clock_event_device *evt)
+{
+ int cfg;
+
+ spin_lock(&hpet_lock);
+
+ cfg = hpet_read(HPET_T0_CFG);
+ cfg &= ~HPET_TN_ENABLE;
+ hpet_write(HPET_T0_CFG, cfg);
+
spin_unlock(&hpet_lock);
+ return 0;
+}
+
+static int hpet_set_state_oneshot(struct clock_event_device *evt)
+{
+ int cfg;
+
+ spin_lock(&hpet_lock);
+
+ pr_info("set clock event to one shot mode!\n");
+ cfg = hpet_read(HPET_T0_CFG);
+ /*
+ * set timer0 type
+ * 1 : periodic interrupt
+ * 0 : non-periodic(oneshot) interrupt
+ */
+ cfg &= ~HPET_TN_PERIODIC;
+ cfg |= HPET_TN_ENABLE | HPET_TN_32BIT;
+ hpet_write(HPET_T0_CFG, cfg);
+
+ spin_unlock(&hpet_lock);
+ return 0;
+}
+
+static int hpet_tick_resume(struct clock_event_device *evt)
+{
+ spin_lock(&hpet_lock);
+ hpet_enable_legacy_int();
+ spin_unlock(&hpet_lock);
+
+ return 0;
}
static int hpet_next_event(unsigned long delta,
@@ -206,7 +228,10 @@ void __init setup_hpet_timer(void)
cd->name = "hpet";
cd->rating = 320;
cd->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
- cd->set_mode = hpet_set_mode;
+ cd->set_state_shutdown = hpet_set_state_shutdown;
+ cd->set_state_periodic = hpet_set_state_periodic;
+ cd->set_state_oneshot = hpet_set_state_oneshot;
+ cd->tick_resume = hpet_tick_resume;
cd->set_next_event = hpet_next_event;
cd->irq = HPET_T0_IRQ;
cd->cpumask = cpumask_of(cpu);
diff --git a/arch/mips/math-emu/Makefile b/arch/mips/math-emu/Makefile
index 2e5f96275..a19641d3a 100644
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -4,9 +4,9 @@
obj-y += cp1emu.o ieee754dp.o ieee754sp.o ieee754.o \
dp_div.o dp_mul.o dp_sub.o dp_add.o dp_fsp.o dp_cmp.o dp_simple.o \
- dp_tint.o dp_fint.o \
+ dp_tint.o dp_fint.o dp_maddf.o dp_msubf.o dp_2008class.o dp_fmin.o dp_fmax.o \
sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_simple.o \
- sp_tint.o sp_fint.o \
+ sp_tint.o sp_fint.o sp_maddf.o sp_msubf.o sp_2008class.o sp_fmin.o sp_fmax.o \
dsemul.o
lib-y += ieee754d.o \
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index f0f1b98a5..32f0e19a0 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -1394,6 +1394,14 @@ static const unsigned char cmptab[8] = {
IEEE754_CLT | IEEE754_CEQ | IEEE754_CUN, /* cmp_ule (sig) cmp_ngt */
};
+static const unsigned char negative_cmptab[8] = {
+ 0, /* Reserved */
+ IEEE754_CLT | IEEE754_CGT | IEEE754_CEQ,
+ IEEE754_CLT | IEEE754_CGT | IEEE754_CUN,
+ IEEE754_CLT | IEEE754_CGT,
+ /* Reserved */
+};
+
/*
* Additional MIPS4 instructions
@@ -1735,6 +1743,126 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
SPFROMREG(rv.s, MIPSInst_FS(ir));
break;
+ case fseleqz_op:
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(rv.s, MIPSInst_FT(ir));
+ if (rv.w & 0x1)
+ rv.w = 0;
+ else
+ SPFROMREG(rv.s, MIPSInst_FS(ir));
+ break;
+
+ case fselnez_op:
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(rv.s, MIPSInst_FT(ir));
+ if (rv.w & 0x1)
+ SPFROMREG(rv.s, MIPSInst_FS(ir));
+ else
+ rv.w = 0;
+ break;
+
+ case fmaddf_op: {
+ union ieee754sp ft, fs, fd;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ SPFROMREG(fd, MIPSInst_FD(ir));
+ rv.s = ieee754sp_maddf(fd, fs, ft);
+ break;
+ }
+
+ case fmsubf_op: {
+ union ieee754sp ft, fs, fd;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ SPFROMREG(fd, MIPSInst_FD(ir));
+ rv.s = ieee754sp_msubf(fd, fs, ft);
+ break;
+ }
+
+ case frint_op: {
+ union ieee754sp fs;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.l = ieee754sp_tlong(fs);
+ rv.s = ieee754sp_flong(rv.l);
+ goto copcsr;
+ }
+
+ case fclass_op: {
+ union ieee754sp fs;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.w = ieee754sp_2008class(fs);
+ rfmt = w_fmt;
+ break;
+ }
+
+ case fmin_op: {
+ union ieee754sp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.s = ieee754sp_fmin(fs, ft);
+ break;
+ }
+
+ case fmina_op: {
+ union ieee754sp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.s = ieee754sp_fmina(fs, ft);
+ break;
+ }
+
+ case fmax_op: {
+ union ieee754sp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.s = ieee754sp_fmax(fs, ft);
+ break;
+ }
+
+ case fmaxa_op: {
+ union ieee754sp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ SPFROMREG(ft, MIPSInst_FT(ir));
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ rv.s = ieee754sp_fmaxa(fs, ft);
+ break;
+ }
+
case fabs_op:
handler.u = ieee754sp_abs;
goto scopuop;
@@ -1838,7 +1966,7 @@ copcsr:
goto copcsr;
default:
- if (MIPSInst_FUNC(ir) >= fcmp_op) {
+ if (!NO_R6EMU && MIPSInst_FUNC(ir) >= fcmp_op) {
unsigned cmpop = MIPSInst_FUNC(ir) - fcmp_op;
union ieee754sp fs, ft;
@@ -1932,6 +2060,127 @@ copcsr:
return 0;
DPFROMREG(rv.d, MIPSInst_FS(ir));
break;
+
+ case fseleqz_op:
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(rv.d, MIPSInst_FT(ir));
+ if (rv.l & 0x1)
+ rv.l = 0;
+ else
+ DPFROMREG(rv.d, MIPSInst_FS(ir));
+ break;
+
+ case fselnez_op:
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(rv.d, MIPSInst_FT(ir));
+ if (rv.l & 0x1)
+ DPFROMREG(rv.d, MIPSInst_FS(ir));
+ else
+ rv.l = 0;
+ break;
+
+ case fmaddf_op: {
+ union ieee754dp ft, fs, fd;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ DPFROMREG(fd, MIPSInst_FD(ir));
+ rv.d = ieee754dp_maddf(fd, fs, ft);
+ break;
+ }
+
+ case fmsubf_op: {
+ union ieee754dp ft, fs, fd;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ DPFROMREG(fd, MIPSInst_FD(ir));
+ rv.d = ieee754dp_msubf(fd, fs, ft);
+ break;
+ }
+
+ case frint_op: {
+ union ieee754dp fs;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.l = ieee754dp_tlong(fs);
+ rv.d = ieee754dp_flong(rv.l);
+ goto copcsr;
+ }
+
+ case fclass_op: {
+ union ieee754dp fs;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.w = ieee754dp_2008class(fs);
+ rfmt = w_fmt;
+ break;
+ }
+
+ case fmin_op: {
+ union ieee754dp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.d = ieee754dp_fmin(fs, ft);
+ break;
+ }
+
+ case fmina_op: {
+ union ieee754dp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.d = ieee754dp_fmina(fs, ft);
+ break;
+ }
+
+ case fmax_op: {
+ union ieee754dp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.d = ieee754dp_fmax(fs, ft);
+ break;
+ }
+
+ case fmaxa_op: {
+ union ieee754dp fs, ft;
+
+ if (!cpu_has_mips_r6)
+ return SIGILL;
+
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ rv.d = ieee754dp_fmaxa(fs, ft);
+ break;
+ }
+
case fabs_op:
handler.u = ieee754dp_abs;
goto dcopuop;
@@ -2015,7 +2264,7 @@ dcopuop:
goto copcsr;
default:
- if (MIPSInst_FUNC(ir) >= fcmp_op) {
+ if (!NO_R6EMU && MIPSInst_FUNC(ir) >= fcmp_op) {
unsigned cmpop = MIPSInst_FUNC(ir) - fcmp_op;
union ieee754dp fs, ft;
@@ -2039,8 +2288,11 @@ dcopuop:
break;
}
break;
+ }
+
+ case w_fmt: {
+ union ieee754dp fs;
- case w_fmt:
switch (MIPSInst_FUNC(ir)) {
case fcvts_op:
/* convert word to single precision real */
@@ -2054,10 +2306,65 @@ dcopuop:
rv.d = ieee754dp_fint(fs.bits);
rfmt = d_fmt;
goto copcsr;
- default:
- return SIGILL;
+ default: {
+ /* Emulating the new CMP.condn.fmt R6 instruction */
+#define CMPOP_MASK 0x7
+#define SIGN_BIT (0x1 << 3)
+#define PREDICATE_BIT (0x1 << 4)
+
+ int cmpop = MIPSInst_FUNC(ir) & CMPOP_MASK;
+ int sig = MIPSInst_FUNC(ir) & SIGN_BIT;
+ union ieee754sp fs, ft;
+
+ /* This is an R6 only instruction */
+ if (!cpu_has_mips_r6 ||
+ (MIPSInst_FUNC(ir) & 0x20))
+ return SIGILL;
+
+ /* fmt is w_fmt for single precision so fix it */
+ rfmt = s_fmt;
+ /* default to false */
+ rv.w = 0;
+
+ /* CMP.condn.S */
+ SPFROMREG(fs, MIPSInst_FS(ir));
+ SPFROMREG(ft, MIPSInst_FT(ir));
+
+ /* positive predicates */
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ if (ieee754sp_cmp(fs, ft, cmptab[cmpop],
+ sig))
+ rv.w = -1; /* true, all 1s */
+ if ((sig) &&
+ ieee754_cxtest(IEEE754_INVALID_OPERATION))
+ rcsr = FPU_CSR_INV_X | FPU_CSR_INV_S;
+ else
+ goto copcsr;
+ } else {
+ /* negative predicates */
+ switch (cmpop) {
+ case 1:
+ case 2:
+ case 3:
+ if (ieee754sp_cmp(fs, ft,
+ negative_cmptab[cmpop],
+ sig))
+ rv.w = -1; /* true, all 1s */
+ if (sig &&
+ ieee754_cxtest(IEEE754_INVALID_OPERATION))
+ rcsr = FPU_CSR_INV_X | FPU_CSR_INV_S;
+ else
+ goto copcsr;
+ break;
+ default:
+ /* Reserved R6 ops */
+ pr_err("Reserved MIPS R6 CMP.condn.S operation\n");
+ return SIGILL;
+ }
+ }
+ break;
+ }
}
- break;
}
case l_fmt:
@@ -2078,11 +2385,60 @@ dcopuop:
rv.d = ieee754dp_flong(bits);
rfmt = d_fmt;
goto copcsr;
- default:
- return SIGILL;
- }
- break;
+ default: {
+ /* Emulating the new CMP.condn.fmt R6 instruction */
+ int cmpop = MIPSInst_FUNC(ir) & CMPOP_MASK;
+ int sig = MIPSInst_FUNC(ir) & SIGN_BIT;
+ union ieee754dp fs, ft;
+
+ if (!cpu_has_mips_r6 ||
+ (MIPSInst_FUNC(ir) & 0x20))
+ return SIGILL;
+
+ /* fmt is l_fmt for double precision so fix it */
+ rfmt = d_fmt;
+ /* default to false */
+ rv.l = 0;
+
+ /* CMP.condn.D */
+ DPFROMREG(fs, MIPSInst_FS(ir));
+ DPFROMREG(ft, MIPSInst_FT(ir));
+ /* positive predicates */
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ if (ieee754dp_cmp(fs, ft,
+ cmptab[cmpop], sig))
+ rv.l = -1LL; /* true, all 1s */
+ if (sig &&
+ ieee754_cxtest(IEEE754_INVALID_OPERATION))
+ rcsr = FPU_CSR_INV_X | FPU_CSR_INV_S;
+ else
+ goto copcsr;
+ } else {
+ /* negative predicates */
+ switch (cmpop) {
+ case 1:
+ case 2:
+ case 3:
+ if (ieee754dp_cmp(fs, ft,
+ negative_cmptab[cmpop],
+ sig))
+ rv.l = -1LL; /* true, all 1s */
+ if (sig &&
+ ieee754_cxtest(IEEE754_INVALID_OPERATION))
+ rcsr = FPU_CSR_INV_X | FPU_CSR_INV_S;
+ else
+ goto copcsr;
+ break;
+ default:
+ /* Reserved R6 ops */
+ pr_err("Reserved MIPS R6 CMP.condn.D operation\n");
+ return SIGILL;
+ }
+ }
+ break;
+ }
+ }
default:
return SIGILL;
}
diff --git a/arch/mips/math-emu/dp_2008class.c b/arch/mips/math-emu/dp_2008class.c
new file mode 100644
index 000000000..9dc39fc48
--- /dev/null
+++ b/arch/mips/math-emu/dp_2008class.c
@@ -0,0 +1,55 @@
+/*
+ * IEEE754 floating point arithmetic
+ * double precision: CLASS.f
+ * FPR[fd] = class(FPR[fs])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754dp.h"
+
+int ieee754dp_2008class(union ieee754dp x)
+{
+ COMPXDP;
+
+ EXPLODEXDP;
+
+ /*
+ * 10 bit mask as follows:
+ *
+ * bit0 = SNAN
+ * bit1 = QNAN
+ * bit2 = -INF
+ * bit3 = -NORM
+ * bit4 = -DNORM
+ * bit5 = -ZERO
+ * bit6 = INF
+ * bit7 = NORM
+ * bit8 = DNORM
+ * bit9 = ZERO
+ */
+
+ switch(xc) {
+ case IEEE754_CLASS_SNAN:
+ return 0x01;
+ case IEEE754_CLASS_QNAN:
+ return 0x02;
+ case IEEE754_CLASS_INF:
+ return 0x04 << (xs ? 0 : 4);
+ case IEEE754_CLASS_NORM:
+ return 0x08 << (xs ? 0 : 4);
+ case IEEE754_CLASS_DNORM:
+ return 0x10 << (xs ? 0 : 4);
+ case IEEE754_CLASS_ZERO:
+ return 0x20 << (xs ? 0 : 4);
+ default:
+ pr_err("Unknown class: %d\n", xc);
+ return 0;
+ }
+}
diff --git a/arch/mips/math-emu/dp_fmax.c b/arch/mips/math-emu/dp_fmax.c
new file mode 100644
index 000000000..fd71b8daa
--- /dev/null
+++ b/arch/mips/math-emu/dp_fmax.c
@@ -0,0 +1,213 @@
+/*
+ * IEEE754 floating point arithmetic
+ * double precision: MIN{,A}.f
+ * MIN : Scalar Floating-Point Minimum
+ * MINA: Scalar Floating-Point argument with Minimum Absolute Value
+ *
+ * MIN.D : FPR[fd] = minNum(FPR[fs],FPR[ft])
+ * MINA.D: FPR[fd] = maxNumMag(FPR[fs],FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
+{
+ COMPXDP;
+ COMPYDP;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+
+ FLUSHXDP;
+ FLUSHYDP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return xs ? y : x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return ys ? x : y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754dp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ DPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ /* Compare signs */
+ if (xs > ys)
+ return y;
+ else if (xs < ys)
+ return x;
+
+ /* Compare exponent */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return y;
+ return x;
+}
+
+union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
+{
+ COMPXDP;
+ COMPYDP;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+
+ FLUSHXDP;
+ FLUSHYDP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754dp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ DPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ /* Compare exponent */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return y;
+ return x;
+}
diff --git a/arch/mips/math-emu/dp_fmin.c b/arch/mips/math-emu/dp_fmin.c
new file mode 100644
index 000000000..c1072b0df
--- /dev/null
+++ b/arch/mips/math-emu/dp_fmin.c
@@ -0,0 +1,213 @@
+/*
+ * IEEE754 floating point arithmetic
+ * double precision: MIN{,A}.f
+ * MIN : Scalar Floating-Point Minimum
+ * MINA: Scalar Floating-Point argument with Minimum Absolute Value
+ *
+ * MIN.D : FPR[fd] = minNum(FPR[fs],FPR[ft])
+ * MINA.D: FPR[fd] = maxNumMag(FPR[fs],FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
+{
+ COMPXDP;
+ COMPYDP;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+
+ FLUSHXDP;
+ FLUSHYDP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return xs ? x : y;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return ys ? y : x;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754dp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ DPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ /* Compare signs */
+ if (xs > ys)
+ return x;
+ else if (xs < ys)
+ return y;
+
+ /* Compare exponent */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return x;
+ return y;
+}
+
+union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
+{
+ COMPXDP;
+ COMPYDP;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+
+ FLUSHXDP;
+ FLUSHYDP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754dp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ DPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ /* Compare exponent */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return x;
+ return y;
+}
diff --git a/arch/mips/math-emu/dp_maddf.c b/arch/mips/math-emu/dp_maddf.c
new file mode 100644
index 000000000..119eda9fa
--- /dev/null
+++ b/arch/mips/math-emu/dp_maddf.c
@@ -0,0 +1,265 @@
+/*
+ * IEEE754 floating point arithmetic
+ * double precision: MADDF.f (Fused Multiply Add)
+ * MADDF.fmt: FPR[fd] = FPR[fd] + (FPR[fs] x FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
+ union ieee754dp y)
+{
+ int re;
+ int rs;
+ u64 rm;
+ unsigned lxm;
+ unsigned hxm;
+ unsigned lym;
+ unsigned hym;
+ u64 lrm;
+ u64 hrm;
+ u64 t;
+ u64 at;
+ int s;
+
+ COMPXDP;
+ COMPYDP;
+
+ u64 zm; int ze; int zs __maybe_unused; int zc;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+ EXPLODEDP(z, zc, zs, ze, zm)
+
+ FLUSHXDP;
+ FLUSHYDP;
+ FLUSHDP(z, zc, zs, ze, zm);
+
+ ieee754_clearcx();
+
+ switch (zc) {
+ case IEEE754_CLASS_SNAN:
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754dp_nanxcpt(z);
+ case IEEE754_CLASS_DNORM:
+ DPDNORMx(zm, ze);
+ /* QNAN is handled separately below */
+ }
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return x;
+
+
+ /*
+ * Infinity handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754dp_indef();
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ return ieee754dp_inf(xs ^ ys);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ /* Multiplication is 0 so just return z */
+ return z;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ DPDNORMX;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ /* fall through to real computations */
+ }
+
+ /* Finally get to do some computation */
+
+ /*
+ * Do the multiplication bit first
+ *
+ * rm = xm * ym, re = xe + ye basically
+ *
+ * At this point xm and ym should have been normalized.
+ */
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ re = xe + ye;
+ rs = xs ^ ys;
+
+ /* shunt to top of word */
+ xm <<= 64 - (DP_FBITS + 1);
+ ym <<= 64 - (DP_FBITS + 1);
+
+ /*
+ * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
+ */
+
+ /* 32 * 32 => 64 */
+#define DPXMULT(x, y) ((u64)(x) * (u64)y)
+
+ lxm = xm;
+ hxm = xm >> 32;
+ lym = ym;
+ hym = ym >> 32;
+
+ lrm = DPXMULT(lxm, lym);
+ hrm = DPXMULT(hxm, hym);
+
+ t = DPXMULT(lxm, hym);
+
+ at = lrm + (t << 32);
+ hrm += at < lrm;
+ lrm = at;
+
+ hrm = hrm + (t >> 32);
+
+ t = DPXMULT(hxm, lym);
+
+ at = lrm + (t << 32);
+ hrm += at < lrm;
+ lrm = at;
+
+ hrm = hrm + (t >> 32);
+
+ rm = hrm | (lrm != 0);
+
+ /*
+ * Sticky shift down to normal rounding precision.
+ */
+ if ((s64) rm < 0) {
+ rm = (rm >> (64 - (DP_FBITS + 1 + 3))) |
+ ((rm << (DP_FBITS + 1 + 3)) != 0);
+ re++;
+ } else {
+ rm = (rm >> (64 - (DP_FBITS + 1 + 3 + 1))) |
+ ((rm << (DP_FBITS + 1 + 3 + 1)) != 0);
+ }
+ assert(rm & (DP_HIDDEN_BIT << 3));
+
+ /* And now the addition */
+ assert(zm & DP_HIDDEN_BIT);
+
+ /*
+ * Provide guard,round and stick bit space.
+ */
+ zm <<= 3;
+
+ if (ze > re) {
+ /*
+ * Have to shift y fraction right to align.
+ */
+ s = ze - re;
+ rm = XDPSRS(rm, s);
+ re += s;
+ } else if (re > ze) {
+ /*
+ * Have to shift x fraction right to align.
+ */
+ s = re - ze;
+ zm = XDPSRS(zm, s);
+ ze += s;
+ }
+ assert(ze == re);
+ assert(ze <= DP_EMAX);
+
+ if (zs == rs) {
+ /*
+ * Generate 28 bit result of adding two 27 bit numbers
+ * leaving result in xm, xs and xe.
+ */
+ zm = zm + rm;
+
+ if (zm >> (DP_FBITS + 1 + 3)) { /* carry out */
+ zm = XDPSRS1(zm);
+ ze++;
+ }
+ } else {
+ if (zm >= rm) {
+ zm = zm - rm;
+ } else {
+ zm = rm - zm;
+ zs = rs;
+ }
+ if (zm == 0)
+ return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
+
+ /*
+ * Normalize to rounding precision.
+ */
+ while ((zm >> (DP_FBITS + 3)) == 0) {
+ zm <<= 1;
+ ze--;
+ }
+ }
+
+ return ieee754dp_format(zs, ze, zm);
+}
diff --git a/arch/mips/math-emu/dp_msubf.c b/arch/mips/math-emu/dp_msubf.c
new file mode 100644
index 000000000..12241262f
--- /dev/null
+++ b/arch/mips/math-emu/dp_msubf.c
@@ -0,0 +1,269 @@
+/*
+ * IEEE754 floating point arithmetic
+ * double precision: MSUB.f (Fused Multiply Subtract)
+ * MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
+ union ieee754dp y)
+{
+ int re;
+ int rs;
+ u64 rm;
+ unsigned lxm;
+ unsigned hxm;
+ unsigned lym;
+ unsigned hym;
+ u64 lrm;
+ u64 hrm;
+ u64 t;
+ u64 at;
+ int s;
+
+ COMPXDP;
+ COMPYDP;
+
+ u64 zm; int ze; int zs __maybe_unused; int zc;
+
+ EXPLODEXDP;
+ EXPLODEYDP;
+ EXPLODEDP(z, zc, zs, ze, zm)
+
+ FLUSHXDP;
+ FLUSHYDP;
+ FLUSHDP(z, zc, zs, ze, zm);
+
+ ieee754_clearcx();
+
+ switch (zc) {
+ case IEEE754_CLASS_SNAN:
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754dp_nanxcpt(z);
+ case IEEE754_CLASS_DNORM:
+ DPDNORMx(zm, ze);
+ /* QNAN is handled separately below */
+ }
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754dp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754dp_nanxcpt(x);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return x;
+
+
+ /*
+ * Infinity handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754dp_indef();
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ return ieee754dp_inf(xs ^ ys);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ /* Multiplication is 0 so just return z */
+ return z;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ DPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ DPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ DPDNORMX;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754dp_inf(zs);
+ /* fall through to real computations */
+ }
+
+ /* Finally get to do some computation */
+
+ /*
+ * Do the multiplication bit first
+ *
+ * rm = xm * ym, re = xe + ye basically
+ *
+ * At this point xm and ym should have been normalized.
+ */
+ assert(xm & DP_HIDDEN_BIT);
+ assert(ym & DP_HIDDEN_BIT);
+
+ re = xe + ye;
+ rs = xs ^ ys;
+
+ /* shunt to top of word */
+ xm <<= 64 - (DP_FBITS + 1);
+ ym <<= 64 - (DP_FBITS + 1);
+
+ /*
+ * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
+ */
+
+ /* 32 * 32 => 64 */
+#define DPXMULT(x, y) ((u64)(x) * (u64)y)
+
+ lxm = xm;
+ hxm = xm >> 32;
+ lym = ym;
+ hym = ym >> 32;
+
+ lrm = DPXMULT(lxm, lym);
+ hrm = DPXMULT(hxm, hym);
+
+ t = DPXMULT(lxm, hym);
+
+ at = lrm + (t << 32);
+ hrm += at < lrm;
+ lrm = at;
+
+ hrm = hrm + (t >> 32);
+
+ t = DPXMULT(hxm, lym);
+
+ at = lrm + (t << 32);
+ hrm += at < lrm;
+ lrm = at;
+
+ hrm = hrm + (t >> 32);
+
+ rm = hrm | (lrm != 0);
+
+ /*
+ * Sticky shift down to normal rounding precision.
+ */
+ if ((s64) rm < 0) {
+ rm = (rm >> (64 - (DP_FBITS + 1 + 3))) |
+ ((rm << (DP_FBITS + 1 + 3)) != 0);
+ re++;
+ } else {
+ rm = (rm >> (64 - (DP_FBITS + 1 + 3 + 1))) |
+ ((rm << (DP_FBITS + 1 + 3 + 1)) != 0);
+ }
+ assert(rm & (DP_HIDDEN_BIT << 3));
+
+ /* And now the subtraction */
+
+ /* flip sign of r and handle as add */
+ rs ^= 1;
+
+ assert(zm & DP_HIDDEN_BIT);
+
+ /*
+ * Provide guard,round and stick bit space.
+ */
+ zm <<= 3;
+
+ if (ze > re) {
+ /*
+ * Have to shift y fraction right to align.
+ */
+ s = ze - re;
+ rm = XDPSRS(rm, s);
+ re += s;
+ } else if (re > ze) {
+ /*
+ * Have to shift x fraction right to align.
+ */
+ s = re - ze;
+ zm = XDPSRS(zm, s);
+ ze += s;
+ }
+ assert(ze == re);
+ assert(ze <= DP_EMAX);
+
+ if (zs == rs) {
+ /*
+ * Generate 28 bit result of adding two 27 bit numbers
+ * leaving result in xm, xs and xe.
+ */
+ zm = zm + rm;
+
+ if (zm >> (DP_FBITS + 1 + 3)) { /* carry out */
+ zm = XDPSRS1(zm);
+ ze++;
+ }
+ } else {
+ if (zm >= rm) {
+ zm = zm - rm;
+ } else {
+ zm = rm - zm;
+ zs = rs;
+ }
+ if (zm == 0)
+ return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
+
+ /*
+ * Normalize to rounding precision.
+ */
+ while ((zm >> (DP_FBITS + 3)) == 0) {
+ zm <<= 1;
+ ze--;
+ }
+ }
+
+ return ieee754dp_format(zs, ze, zm);
+}
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index e0b5cc27d..cbb36c14b 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -33,7 +33,6 @@ struct emuframe {
int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
{
- extern asmlinkage void handle_dsemulret(void);
struct emuframe __user *fr;
int err;
diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h
index a5ca108ce..df9472071 100644
--- a/arch/mips/math-emu/ieee754.h
+++ b/arch/mips/math-emu/ieee754.h
@@ -75,6 +75,16 @@ int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig);
union ieee754sp ieee754sp_sqrt(union ieee754sp x);
+union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
+ union ieee754sp y);
+union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
+ union ieee754sp y);
+int ieee754sp_2008class(union ieee754sp x);
+union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y);
+union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y);
+union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y);
+union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y);
+
/*
* double precision (often aka double)
*/
@@ -99,6 +109,15 @@ int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig);
union ieee754dp ieee754dp_sqrt(union ieee754dp x);
+union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
+ union ieee754dp y);
+union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
+ union ieee754dp y);
+int ieee754dp_2008class(union ieee754dp x);
+union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y);
+union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y);
+union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y);
+union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y);
/* 5 types of floating point number
diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h
index 05389d5e3..6383e2c5c 100644
--- a/arch/mips/math-emu/ieee754int.h
+++ b/arch/mips/math-emu/ieee754int.h
@@ -65,8 +65,8 @@ static inline int ieee754_class_nan(int xc)
vc = IEEE754_CLASS_INF; \
else if (vm & SP_MBIT(SP_FBITS-1)) \
vc = IEEE754_CLASS_SNAN; \
- else \
- vc = IEEE754_CLASS_QNAN; \
+ else \
+ vc = IEEE754_CLASS_QNAN; \
} else if (ve == SP_EMIN-1+SP_EBIAS) { \
if (vm) { \
ve = SP_EMIN; \
@@ -105,8 +105,8 @@ static inline int ieee754_class_nan(int xc)
if (vm) { \
ve = DP_EMIN; \
vc = IEEE754_CLASS_DNORM; \
- } else \
- vc = IEEE754_CLASS_ZERO; \
+ } else \
+ vc = IEEE754_CLASS_ZERO; \
} else { \
ve -= DP_EBIAS; \
vm |= DP_HIDDEN_BIT; \
diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c
index f308e0f05..506a67a98 100644
--- a/arch/mips/math-emu/me-debugfs.c
+++ b/arch/mips/math-emu/me-debugfs.c
@@ -65,4 +65,4 @@ do { \
return 0;
}
-__initcall(debugfs_fpuemu);
+arch_initcall(debugfs_fpuemu);
diff --git a/arch/mips/math-emu/sp_2008class.c b/arch/mips/math-emu/sp_2008class.c
new file mode 100644
index 000000000..ff62606a1
--- /dev/null
+++ b/arch/mips/math-emu/sp_2008class.c
@@ -0,0 +1,55 @@
+/*
+ * IEEE754 floating point arithmetic
+ * single precision: CLASS.f
+ * FPR[fd] = class(FPR[fs])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754sp.h"
+
+int ieee754sp_2008class(union ieee754sp x)
+{
+ COMPXSP;
+
+ EXPLODEXSP;
+
+ /*
+ * 10 bit mask as follows:
+ *
+ * bit0 = SNAN
+ * bit1 = QNAN
+ * bit2 = -INF
+ * bit3 = -NORM
+ * bit4 = -DNORM
+ * bit5 = -ZERO
+ * bit6 = INF
+ * bit7 = NORM
+ * bit8 = DNORM
+ * bit9 = ZERO
+ */
+
+ switch(xc) {
+ case IEEE754_CLASS_SNAN:
+ return 0x01;
+ case IEEE754_CLASS_QNAN:
+ return 0x02;
+ case IEEE754_CLASS_INF:
+ return 0x04 << (xs ? 0 : 4);
+ case IEEE754_CLASS_NORM:
+ return 0x08 << (xs ? 0 : 4);
+ case IEEE754_CLASS_DNORM:
+ return 0x10 << (xs ? 0 : 4);
+ case IEEE754_CLASS_ZERO:
+ return 0x20 << (xs ? 0 : 4);
+ default:
+ pr_err("Unknown class: %d\n", xc);
+ return 0;
+ }
+}
diff --git a/arch/mips/math-emu/sp_fmax.c b/arch/mips/math-emu/sp_fmax.c
new file mode 100644
index 000000000..4d000844e
--- /dev/null
+++ b/arch/mips/math-emu/sp_fmax.c
@@ -0,0 +1,213 @@
+/*
+ * IEEE754 floating point arithmetic
+ * single precision: MAX{,A}.f
+ * MAX : Scalar Floating-Point Maximum
+ * MAXA: Scalar Floating-Point argument with Maximum Absolute Value
+ *
+ * MAX.S : FPR[fd] = maxNum(FPR[fs],FPR[ft])
+ * MAXA.S: FPR[fd] = maxNumMag(FPR[fs],FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
+{
+ COMPXSP;
+ COMPYSP;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+
+ FLUSHXSP;
+ FLUSHYSP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return xs ? y : x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return ys ? x : y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754sp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ SPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ /* Compare signs */
+ if (xs > ys)
+ return y;
+ else if (xs < ys)
+ return x;
+
+ /* Compare exponent */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return y;
+ return x;
+}
+
+union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
+{
+ COMPXSP;
+ COMPYSP;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+
+ FLUSHXSP;
+ FLUSHYSP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754sp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ SPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ /* Compare exponent */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return y;
+ return x;
+}
diff --git a/arch/mips/math-emu/sp_fmin.c b/arch/mips/math-emu/sp_fmin.c
new file mode 100644
index 000000000..4eb1bb9e9
--- /dev/null
+++ b/arch/mips/math-emu/sp_fmin.c
@@ -0,0 +1,213 @@
+/*
+ * IEEE754 floating point arithmetic
+ * single precision: MIN{,A}.f
+ * MIN : Scalar Floating-Point Minimum
+ * MINA: Scalar Floating-Point argument with Minimum Absolute Value
+ *
+ * MIN.S : FPR[fd] = minNum(FPR[fs],FPR[ft])
+ * MINA.S: FPR[fd] = maxNumMag(FPR[fs],FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
+{
+ COMPXSP;
+ COMPYSP;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+
+ FLUSHXSP;
+ FLUSHYSP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return xs ? x : y;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return ys ? y : x;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754sp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ SPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ /* Compare signs */
+ if (xs > ys)
+ return x;
+ else if (xs < ys)
+ return y;
+
+ /* Compare exponent */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return x;
+ return y;
+}
+
+union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
+{
+ COMPXSP;
+ COMPYSP;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+
+ FLUSHXSP;
+ FLUSHYSP;
+
+ ieee754_clearcx();
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ /* numbers are preferred to NaNs */
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return y;
+
+ /*
+ * Infinity and zero handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ return x;
+
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ if (xs == ys)
+ return x;
+ return ieee754sp_zero(1);
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ SPDNORMX;
+ }
+
+ /* Finally get to do some computation */
+
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ /* Compare exponent */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+
+ /* Compare mantissa */
+ if (xm <= ym)
+ return x;
+ return y;
+}
diff --git a/arch/mips/math-emu/sp_maddf.c b/arch/mips/math-emu/sp_maddf.c
new file mode 100644
index 000000000..dd1dd83e3
--- /dev/null
+++ b/arch/mips/math-emu/sp_maddf.c
@@ -0,0 +1,255 @@
+/*
+ * IEEE754 floating point arithmetic
+ * single precision: MADDF.f (Fused Multiply Add)
+ * MADDF.fmt: FPR[fd] = FPR[fd] + (FPR[fs] x FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
+ union ieee754sp y)
+{
+ int re;
+ int rs;
+ unsigned rm;
+ unsigned short lxm;
+ unsigned short hxm;
+ unsigned short lym;
+ unsigned short hym;
+ unsigned lrm;
+ unsigned hrm;
+ unsigned t;
+ unsigned at;
+ int s;
+
+ COMPXSP;
+ COMPYSP;
+ u32 zm; int ze; int zs __maybe_unused; int zc;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+ EXPLODESP(z, zc, zs, ze, zm)
+
+ FLUSHXSP;
+ FLUSHYSP;
+ FLUSHSP(z, zc, zs, ze, zm);
+
+ ieee754_clearcx();
+
+ switch (zc) {
+ case IEEE754_CLASS_SNAN:
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754sp_nanxcpt(z);
+ case IEEE754_CLASS_DNORM:
+ SPDNORMx(zm, ze);
+ /* QNAN is handled separately below */
+ }
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return x;
+
+ /*
+ * Infinity handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754sp_indef();
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ return ieee754sp_inf(xs ^ ys);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ /* Multiplication is 0 so just return z */
+ return z;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ SPDNORMX;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ /* fall through to real computations */
+ }
+
+ /* Finally get to do some computation */
+
+ /*
+ * Do the multiplication bit first
+ *
+ * rm = xm * ym, re = xe + ye basically
+ *
+ * At this point xm and ym should have been normalized.
+ */
+
+ /* rm = xm * ym, re = xe+ye basically */
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ re = xe + ye;
+ rs = xs ^ ys;
+
+ /* shunt to top of word */
+ xm <<= 32 - (SP_FBITS + 1);
+ ym <<= 32 - (SP_FBITS + 1);
+
+ /*
+ * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
+ */
+ lxm = xm & 0xffff;
+ hxm = xm >> 16;
+ lym = ym & 0xffff;
+ hym = ym >> 16;
+
+ lrm = lxm * lym; /* 16 * 16 => 32 */
+ hrm = hxm * hym; /* 16 * 16 => 32 */
+
+ t = lxm * hym; /* 16 * 16 => 32 */
+ at = lrm + (t << 16);
+ hrm += at < lrm;
+ lrm = at;
+ hrm = hrm + (t >> 16);
+
+ t = hxm * lym; /* 16 * 16 => 32 */
+ at = lrm + (t << 16);
+ hrm += at < lrm;
+ lrm = at;
+ hrm = hrm + (t >> 16);
+
+ rm = hrm | (lrm != 0);
+
+ /*
+ * Sticky shift down to normal rounding precision.
+ */
+ if ((int) rm < 0) {
+ rm = (rm >> (32 - (SP_FBITS + 1 + 3))) |
+ ((rm << (SP_FBITS + 1 + 3)) != 0);
+ re++;
+ } else {
+ rm = (rm >> (32 - (SP_FBITS + 1 + 3 + 1))) |
+ ((rm << (SP_FBITS + 1 + 3 + 1)) != 0);
+ }
+ assert(rm & (SP_HIDDEN_BIT << 3));
+
+ /* And now the addition */
+
+ assert(zm & SP_HIDDEN_BIT);
+
+ /*
+ * Provide guard,round and stick bit space.
+ */
+ zm <<= 3;
+
+ if (ze > re) {
+ /*
+ * Have to shift y fraction right to align.
+ */
+ s = ze - re;
+ SPXSRSYn(s);
+ } else if (re > ze) {
+ /*
+ * Have to shift x fraction right to align.
+ */
+ s = re - ze;
+ SPXSRSYn(s);
+ }
+ assert(ze == re);
+ assert(ze <= SP_EMAX);
+
+ if (zs == rs) {
+ /*
+ * Generate 28 bit result of adding two 27 bit numbers
+ * leaving result in zm, zs and ze.
+ */
+ zm = zm + rm;
+
+ if (zm >> (SP_FBITS + 1 + 3)) { /* carry out */
+ SPXSRSX1();
+ }
+ } else {
+ if (zm >= rm) {
+ zm = zm - rm;
+ } else {
+ zm = rm - zm;
+ zs = rs;
+ }
+ if (zm == 0)
+ return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
+
+ /*
+ * Normalize in extended single precision
+ */
+ while ((zm >> (SP_MBITS + 3)) == 0) {
+ zm <<= 1;
+ ze--;
+ }
+
+ }
+ return ieee754sp_format(zs, ze, zm);
+}
diff --git a/arch/mips/math-emu/sp_msubf.c b/arch/mips/math-emu/sp_msubf.c
new file mode 100644
index 000000000..81c38b980
--- /dev/null
+++ b/arch/mips/math-emu/sp_msubf.c
@@ -0,0 +1,258 @@
+/*
+ * IEEE754 floating point arithmetic
+ * single precision: MSUB.f (Fused Multiply Subtract)
+ * MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft])
+ *
+ * MIPS floating point support
+ * Copyright (C) 2015 Imagination Technologies, Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
+ union ieee754sp y)
+{
+ int re;
+ int rs;
+ unsigned rm;
+ unsigned short lxm;
+ unsigned short hxm;
+ unsigned short lym;
+ unsigned short hym;
+ unsigned lrm;
+ unsigned hrm;
+ unsigned t;
+ unsigned at;
+ int s;
+
+ COMPXSP;
+ COMPYSP;
+ u32 zm; int ze; int zs __maybe_unused; int zc;
+
+ EXPLODEXSP;
+ EXPLODEYSP;
+ EXPLODESP(z, zc, zs, ze, zm)
+
+ FLUSHXSP;
+ FLUSHYSP;
+ FLUSHSP(z, zc, zs, ze, zm);
+
+ ieee754_clearcx();
+
+ switch (zc) {
+ case IEEE754_CLASS_SNAN:
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754sp_nanxcpt(z);
+ case IEEE754_CLASS_DNORM:
+ SPDNORMx(zm, ze);
+ /* QNAN is handled separately below */
+ }
+
+ switch (CLPAIR(xc, yc)) {
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ return ieee754sp_nanxcpt(y);
+
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ return ieee754sp_nanxcpt(x);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ return y;
+
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
+ return x;
+
+ /*
+ * Infinity handling
+ */
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754sp_indef();
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ return ieee754sp_inf(xs ^ ys);
+
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
+ case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
+ if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ /* Multiplication is 0 so just return z */
+ return z;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
+ SPDNORMX;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ SPDNORMY;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ SPDNORMX;
+ break;
+
+ case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ else if (zc == IEEE754_CLASS_INF)
+ return ieee754sp_inf(zs);
+ /* fall through to real compuation */
+ }
+
+ /* Finally get to do some computation */
+
+ /*
+ * Do the multiplication bit first
+ *
+ * rm = xm * ym, re = xe + ye basically
+ *
+ * At this point xm and ym should have been normalized.
+ */
+
+ /* rm = xm * ym, re = xe+ye basically */
+ assert(xm & SP_HIDDEN_BIT);
+ assert(ym & SP_HIDDEN_BIT);
+
+ re = xe + ye;
+ rs = xs ^ ys;
+
+ /* shunt to top of word */
+ xm <<= 32 - (SP_FBITS + 1);
+ ym <<= 32 - (SP_FBITS + 1);
+
+ /*
+ * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
+ */
+ lxm = xm & 0xffff;
+ hxm = xm >> 16;
+ lym = ym & 0xffff;
+ hym = ym >> 16;
+
+ lrm = lxm * lym; /* 16 * 16 => 32 */
+ hrm = hxm * hym; /* 16 * 16 => 32 */
+
+ t = lxm * hym; /* 16 * 16 => 32 */
+ at = lrm + (t << 16);
+ hrm += at < lrm;
+ lrm = at;
+ hrm = hrm + (t >> 16);
+
+ t = hxm * lym; /* 16 * 16 => 32 */
+ at = lrm + (t << 16);
+ hrm += at < lrm;
+ lrm = at;
+ hrm = hrm + (t >> 16);
+
+ rm = hrm | (lrm != 0);
+
+ /*
+ * Sticky shift down to normal rounding precision.
+ */
+ if ((int) rm < 0) {
+ rm = (rm >> (32 - (SP_FBITS + 1 + 3))) |
+ ((rm << (SP_FBITS + 1 + 3)) != 0);
+ re++;
+ } else {
+ rm = (rm >> (32 - (SP_FBITS + 1 + 3 + 1))) |
+ ((rm << (SP_FBITS + 1 + 3 + 1)) != 0);
+ }
+ assert(rm & (SP_HIDDEN_BIT << 3));
+
+ /* And now the subtraction */
+
+ /* Flip sign of r and handle as add */
+ rs ^= 1;
+
+ assert(zm & SP_HIDDEN_BIT);
+
+ /*
+ * Provide guard,round and stick bit space.
+ */
+ zm <<= 3;
+
+ if (ze > re) {
+ /*
+ * Have to shift y fraction right to align.
+ */
+ s = ze - re;
+ SPXSRSYn(s);
+ } else if (re > ze) {
+ /*
+ * Have to shift x fraction right to align.
+ */
+ s = re - ze;
+ SPXSRSYn(s);
+ }
+ assert(ze == re);
+ assert(ze <= SP_EMAX);
+
+ if (zs == rs) {
+ /*
+ * Generate 28 bit result of adding two 27 bit numbers
+ * leaving result in zm, zs and ze.
+ */
+ zm = zm + rm;
+
+ if (zm >> (SP_FBITS + 1 + 3)) { /* carry out */
+ SPXSRSX1(); /* shift preserving sticky */
+ }
+ } else {
+ if (zm >= rm) {
+ zm = zm - rm;
+ } else {
+ zm = rm - zm;
+ zs = rs;
+ }
+ if (zm == 0)
+ return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
+
+ /*
+ * Normalize in extended single precision
+ */
+ while ((zm >> (SP_MBITS + 3)) == 0) {
+ zm <<= 1;
+ ze--;
+ }
+
+ }
+ return ieee754sp_format(zs, ze, zm);
+}
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index fbea4432f..5d3a25e1c 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1276,6 +1276,7 @@ static void probe_pcache(void)
case CPU_PROAPTIV:
case CPU_M5150:
case CPU_QEMU_GENERIC:
+ case CPU_I6400:
if (!(read_c0_config7() & MIPS_CONF7_IAR) &&
(c->icache.waysize > PAGE_SIZE))
c->icache.flags |= MIPS_CACHE_ALIASES;
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 815892ed3..d8117be72 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -112,7 +112,7 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
return gfp | dma_flag;
}
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
+static void *mips_dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t * dma_handle, gfp_t gfp)
{
void *ret;
@@ -128,7 +128,6 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size,
return ret;
}
-EXPORT_SYMBOL(dma_alloc_noncoherent);
static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t * dma_handle, gfp_t gfp, struct dma_attrs *attrs)
@@ -137,8 +136,12 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
struct page *page = NULL;
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
- if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
- return ret;
+ /*
+ * XXX: seems like the coherent and non-coherent implementations could
+ * be consolidated.
+ */
+ if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+ return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
gfp = massage_gfp_flags(dev, gfp);
@@ -164,24 +167,24 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
}
-void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle)
+static void mips_dma_free_noncoherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
{
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
free_pages((unsigned long) vaddr, get_order(size));
}
-EXPORT_SYMBOL(dma_free_noncoherent);
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
unsigned long addr = (unsigned long) vaddr;
- int order = get_order(size);
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
struct page *page = NULL;
- if (dma_release_from_coherent(dev, order, vaddr))
+ if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+ mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
return;
+ }
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
@@ -194,6 +197,40 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
__free_pages(page, get_order(size));
}
+static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ struct dma_attrs *attrs)
+{
+ unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ unsigned long addr = (unsigned long)cpu_addr;
+ unsigned long off = vma->vm_pgoff;
+ unsigned long pfn;
+ int ret = -ENXIO;
+
+ if (!plat_device_is_coherent(dev) && !hw_coherentio)
+ addr = CAC_ADDR(addr);
+
+ pfn = page_to_pfn(virt_to_page((void *)addr));
+
+ if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ else
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ return ret;
+
+ if (off < count && user_count <= (count - off)) {
+ ret = remap_pfn_range(vma, vma->vm_start,
+ pfn + off,
+ user_count << PAGE_SHIFT,
+ vma->vm_page_prot);
+ }
+
+ return ret;
+}
+
static inline void __dma_sync_virtual(void *addr, size_t size,
enum dma_data_direction direction)
{
@@ -380,6 +417,7 @@ EXPORT_SYMBOL(dma_cache_sync);
static struct dma_map_ops mips_default_dma_map_ops = {
.alloc = mips_dma_alloc_coherent,
.free = mips_dma_free_coherent,
+ .mmap = mips_dma_mmap,
.map_page = mips_dma_map_page,
.unmap_page = mips_dma_unmap_page,
.map_sg = mips_dma_map_sg,
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 852a41c6d..4b88fa031 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -57,12 +57,10 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
#ifdef CONFIG_KPROBES
/*
- * This is to notify the fault handler of the kprobes. The
- * exception code is redundant as it is also carried in REGS,
- * but we pass it anyhow.
+ * This is to notify the fault handler of the kprobes.
*/
if (notify_die(DIE_PAGE_FAULT, "page fault", regs, -1,
- (regs->cp0_cause >> 2) & 0x1f, SIGSEGV) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGSEGV) == NOTIFY_STOP)
return;
#endif
@@ -224,6 +222,7 @@ bad_area_nosemaphore:
print_vma_addr(" ", regs->regs[31]);
pr_info("\n");
}
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
info.si_signo = SIGSEGV;
info.si_errno = 0;
/* info.si_code has been set above */
@@ -282,6 +281,7 @@ do_sigbus:
field, (unsigned long) regs->cp0_epc,
field, (unsigned long) regs->regs[31]);
#endif
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
tsk->thread.cp0_badvaddr = address;
info.si_signo = SIGBUS;
info.si_errno = 0;
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 198a3147d..8770e6191 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -37,12 +37,14 @@
#include <asm/cpu.h>
#include <asm/dma.h>
#include <asm/kmap_types.h>
+#include <asm/maar.h>
#include <asm/mmu_context.h>
#include <asm/sections.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/fixmap.h>
+#include <asm/maar.h>
/*
* We have up to 8 empty zeroed pages so we can map one of the right colour
@@ -251,6 +253,119 @@ void __init fixrange_init(unsigned long start, unsigned long end,
#endif
}
+unsigned __weak platform_maar_init(unsigned num_pairs)
+{
+ struct maar_config cfg[BOOT_MEM_MAP_MAX];
+ unsigned i, num_configured, num_cfg = 0;
+ phys_addr_t skip;
+
+ for (i = 0; i < boot_mem_map.nr_map; i++) {
+ switch (boot_mem_map.map[i].type) {
+ case BOOT_MEM_RAM:
+ case BOOT_MEM_INIT_RAM:
+ break;
+ default:
+ continue;
+ }
+
+ skip = 0x10000 - (boot_mem_map.map[i].addr & 0xffff);
+
+ cfg[num_cfg].lower = boot_mem_map.map[i].addr;
+ cfg[num_cfg].lower += skip;
+
+ cfg[num_cfg].upper = cfg[num_cfg].lower;
+ cfg[num_cfg].upper += boot_mem_map.map[i].size - 1;
+ cfg[num_cfg].upper -= skip;
+
+ cfg[num_cfg].attrs = MIPS_MAAR_S;
+ num_cfg++;
+ }
+
+ num_configured = maar_config(cfg, num_cfg, num_pairs);
+ if (num_configured < num_cfg)
+ pr_warn("Not enough MAAR pairs (%u) for all bootmem regions (%u)\n",
+ num_pairs, num_cfg);
+
+ return num_configured;
+}
+
+void maar_init(void)
+{
+ unsigned num_maars, used, i;
+ phys_addr_t lower, upper, attr;
+ static struct {
+ struct maar_config cfgs[3];
+ unsigned used;
+ } recorded = { { { 0 } }, 0 };
+
+ if (!cpu_has_maar)
+ return;
+
+ /* Detect the number of MAARs */
+ write_c0_maari(~0);
+ back_to_back_c0_hazard();
+ num_maars = read_c0_maari() + 1;
+
+ /* MAARs should be in pairs */
+ WARN_ON(num_maars % 2);
+
+ /* Set MAARs using values we recorded already */
+ if (recorded.used) {
+ used = maar_config(recorded.cfgs, recorded.used, num_maars / 2);
+ BUG_ON(used != recorded.used);
+ } else {
+ /* Configure the required MAARs */
+ used = platform_maar_init(num_maars / 2);
+ }
+
+ /* Disable any further MAARs */
+ for (i = (used * 2); i < num_maars; i++) {
+ write_c0_maari(i);
+ back_to_back_c0_hazard();
+ write_c0_maar(0);
+ back_to_back_c0_hazard();
+ }
+
+ if (recorded.used)
+ return;
+
+ pr_info("MAAR configuration:\n");
+ for (i = 0; i < num_maars; i += 2) {
+ write_c0_maari(i);
+ back_to_back_c0_hazard();
+ upper = read_c0_maar();
+
+ write_c0_maari(i + 1);
+ back_to_back_c0_hazard();
+ lower = read_c0_maar();
+
+ attr = lower & upper;
+ lower = (lower & MIPS_MAAR_ADDR) << 4;
+ upper = ((upper & MIPS_MAAR_ADDR) << 4) | 0xffff;
+
+ pr_info(" [%d]: ", i / 2);
+ if (!(attr & MIPS_MAAR_V)) {
+ pr_cont("disabled\n");
+ continue;
+ }
+
+ pr_cont("%pa-%pa", &lower, &upper);
+
+ if (attr & MIPS_MAAR_S)
+ pr_cont(" speculate");
+
+ pr_cont("\n");
+
+ /* Record the setup for use on secondary CPUs */
+ if (used <= ARRAY_SIZE(recorded.cfgs)) {
+ recorded.cfgs[recorded.used].lower = lower;
+ recorded.cfgs[recorded.used].upper = upper;
+ recorded.cfgs[recorded.used].attrs = attr;
+ recorded.used++;
+ }
+ }
+}
+
#ifndef CONFIG_NEED_MULTIPLE_NODES
int page_is_ram(unsigned long pagenr)
{
@@ -333,38 +448,6 @@ static inline void mem_init_free_highmem(void)
#endif
}
-unsigned __weak platform_maar_init(unsigned num_maars)
-{
- return 0;
-}
-
-static void maar_init(void)
-{
- unsigned num_maars, used, i;
-
- if (!cpu_has_maar)
- return;
-
- /* Detect the number of MAARs */
- write_c0_maari(~0);
- back_to_back_c0_hazard();
- num_maars = read_c0_maari() + 1;
-
- /* MAARs should be in pairs */
- WARN_ON(num_maars % 2);
-
- /* Configure the required MAARs */
- used = platform_maar_init(num_maars / 2);
-
- /* Disable any further MAARs */
- for (i = (used * 2); i < num_maars; i++) {
- write_c0_maari(i);
- back_to_back_c0_hazard();
- write_c0_maar(0);
- back_to_back_c0_hazard();
- }
-}
-
void __init mem_init(void)
{
#ifdef CONFIG_HIGHMEM
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 4ceafd138..53ea8391f 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -14,6 +14,7 @@
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
#include <asm/r4kcache.h>
+#include <asm/mips-cm.h>
/*
* MIPS32/MIPS64 L2 cache handling
@@ -94,6 +95,38 @@ static inline int mips_sc_is_activated(struct cpuinfo_mips *c)
return 1;
}
+static int __init mips_sc_probe_cm3(void)
+{
+ struct cpuinfo_mips *c = &current_cpu_data;
+ unsigned long cfg = read_gcr_l2_config();
+ unsigned long sets, line_sz, assoc;
+
+ if (cfg & CM_GCR_L2_CONFIG_BYPASS_MSK)
+ return 0;
+
+ sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK;
+ sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF;
+ c->scache.sets = 64 << sets;
+
+ line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK;
+ line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF;
+ c->scache.linesz = 2 << line_sz;
+
+ assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK;
+ assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF;
+ c->scache.ways = assoc + 1;
+ c->scache.waysize = c->scache.sets * c->scache.linesz;
+ c->scache.waybit = __ffs(c->scache.waysize);
+
+ c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+
+ return 1;
+}
+
+void __weak platform_early_l2_init(void)
+{
+}
+
static inline int __init mips_sc_probe(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
@@ -103,6 +136,15 @@ static inline int __init mips_sc_probe(void)
/* Mark as not present until probe completed */
c->scache.flags |= MIPS_CACHE_NOT_PRESENT;
+ /*
+ * Do we need some platform specific probing before
+ * we configure L2?
+ */
+ platform_early_l2_init();
+
+ if (mips_cm_revision() >= CM_REV_CM3)
+ return mips_sc_probe_cm3();
+
/* Ignore anything but MIPSxx processors */
if (!(c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 |
MIPS_CPU_ISA_M32R6 | MIPS_CPU_ISA_M64R1 |
diff --git a/arch/mips/mm/tlb-r3k.c b/arch/mips/mm/tlb-r3k.c
index 2b75b8f88..b4f366f7c 100644
--- a/arch/mips/mm/tlb-r3k.c
+++ b/arch/mips/mm/tlb-r3k.c
@@ -36,7 +36,7 @@ extern void build_tlb_refill_handler(void);
"nop\n\t" \
".set pop\n\t")
-static int r3k_have_wired_reg; /* Should be in cpu_data? */
+int r3k_have_wired_reg; /* Should be in cpu_data? */
/* TLB operations. */
static void local_flush_tlb_from(int entry)
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index cec3e187c..53c24784a 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -303,3 +303,10 @@ mips_pci_controller:
if (!register_vsmp_smp_ops())
return;
}
+
+void platform_early_l2_init(void)
+{
+ /* L2 configuration lives in the CM3 */
+ if (mips_cm_revision() >= CM_REV_CM3)
+ mips_cm_probe();
+}
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index fa8f591f3..c6a6c7afd 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -382,122 +382,12 @@ void malta_be_init(void)
/* Could change CM error mask register. */
}
-
-static char *tr[8] = {
- "mem", "gcr", "gic", "mmio",
- "0x04", "0x05", "0x06", "0x07"
-};
-
-static char *mcmd[32] = {
- [0x00] = "0x00",
- [0x01] = "Legacy Write",
- [0x02] = "Legacy Read",
- [0x03] = "0x03",
- [0x04] = "0x04",
- [0x05] = "0x05",
- [0x06] = "0x06",
- [0x07] = "0x07",
- [0x08] = "Coherent Read Own",
- [0x09] = "Coherent Read Share",
- [0x0a] = "Coherent Read Discard",
- [0x0b] = "Coherent Ready Share Always",
- [0x0c] = "Coherent Upgrade",
- [0x0d] = "Coherent Writeback",
- [0x0e] = "0x0e",
- [0x0f] = "0x0f",
- [0x10] = "Coherent Copyback",
- [0x11] = "Coherent Copyback Invalidate",
- [0x12] = "Coherent Invalidate",
- [0x13] = "Coherent Write Invalidate",
- [0x14] = "Coherent Completion Sync",
- [0x15] = "0x15",
- [0x16] = "0x16",
- [0x17] = "0x17",
- [0x18] = "0x18",
- [0x19] = "0x19",
- [0x1a] = "0x1a",
- [0x1b] = "0x1b",
- [0x1c] = "0x1c",
- [0x1d] = "0x1d",
- [0x1e] = "0x1e",
- [0x1f] = "0x1f"
-};
-
-static char *core[8] = {
- "Invalid/OK", "Invalid/Data",
- "Shared/OK", "Shared/Data",
- "Modified/OK", "Modified/Data",
- "Exclusive/OK", "Exclusive/Data"
-};
-
-static char *causes[32] = {
- "None", "GC_WR_ERR", "GC_RD_ERR", "COH_WR_ERR",
- "COH_RD_ERR", "MMIO_WR_ERR", "MMIO_RD_ERR", "0x07",
- "0x08", "0x09", "0x0a", "0x0b",
- "0x0c", "0x0d", "0x0e", "0x0f",
- "0x10", "0x11", "0x12", "0x13",
- "0x14", "0x15", "0x16", "INTVN_WR_ERR",
- "INTVN_RD_ERR", "0x19", "0x1a", "0x1b",
- "0x1c", "0x1d", "0x1e", "0x1f"
-};
-
int malta_be_handler(struct pt_regs *regs, int is_fixup)
{
/* This duplicates the handling in do_be which seems wrong */
int retval = is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
- if (mips_cm_present()) {
- unsigned long cm_error = read_gcr_error_cause();
- unsigned long cm_addr = read_gcr_error_addr();
- unsigned long cm_other = read_gcr_error_mult();
- unsigned long cause, ocause;
- char buf[256];
-
- cause = cm_error & CM_GCR_ERROR_CAUSE_ERRTYPE_MSK;
- if (cause != 0) {
- cause >>= CM_GCR_ERROR_CAUSE_ERRTYPE_SHF;
- if (cause < 16) {
- unsigned long cca_bits = (cm_error >> 15) & 7;
- unsigned long tr_bits = (cm_error >> 12) & 7;
- unsigned long cmd_bits = (cm_error >> 7) & 0x1f;
- unsigned long stag_bits = (cm_error >> 3) & 15;
- unsigned long sport_bits = (cm_error >> 0) & 7;
-
- snprintf(buf, sizeof(buf),
- "CCA=%lu TR=%s MCmd=%s STag=%lu "
- "SPort=%lu\n",
- cca_bits, tr[tr_bits], mcmd[cmd_bits],
- stag_bits, sport_bits);
- } else {
- /* glob state & sresp together */
- unsigned long c3_bits = (cm_error >> 18) & 7;
- unsigned long c2_bits = (cm_error >> 15) & 7;
- unsigned long c1_bits = (cm_error >> 12) & 7;
- unsigned long c0_bits = (cm_error >> 9) & 7;
- unsigned long sc_bit = (cm_error >> 8) & 1;
- unsigned long cmd_bits = (cm_error >> 3) & 0x1f;
- unsigned long sport_bits = (cm_error >> 0) & 7;
- snprintf(buf, sizeof(buf),
- "C3=%s C2=%s C1=%s C0=%s SC=%s "
- "MCmd=%s SPort=%lu\n",
- core[c3_bits], core[c2_bits],
- core[c1_bits], core[c0_bits],
- sc_bit ? "True" : "False",
- mcmd[cmd_bits], sport_bits);
- }
-
- ocause = (cm_other & CM_GCR_ERROR_MULT_ERR2ND_MSK) >>
- CM_GCR_ERROR_MULT_ERR2ND_SHF;
-
- pr_err("CM_ERROR=%08lx %s <%s>\n", cm_error,
- causes[cause], buf);
- pr_err("CM_ADDR =%08lx\n", cm_addr);
- pr_err("CM_OTHER=%08lx %s\n", cm_other, causes[ocause]);
-
- /* reprime cause register */
- write_gcr_error_cause(0);
- }
- }
+ mips_cm_error_report();
return retval;
}
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index b769657be..dadeb8379 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -179,31 +179,6 @@ void __init prom_free_prom_memory(void)
}
}
-unsigned platform_maar_init(unsigned num_pairs)
-{
- phys_addr_t mem_end = (physical_memsize & ~0xffffull) - 1;
- struct maar_config cfg[] = {
- /* DRAM preceding I/O */
- { 0x00000000, 0x0fffffff, MIPS_MAAR_S },
-
- /* DRAM following I/O */
- { 0x20000000, mem_end, MIPS_MAAR_S },
-
- /* DRAM alias in upper half of physical */
- { 0x80000000, 0x80000000 + mem_end, MIPS_MAAR_S },
- };
- unsigned i, num_cfg = ARRAY_SIZE(cfg);
-
- /* If DRAM fits before I/O, drop the region following it */
- if (physical_memsize <= 0x10000000) {
- num_cfg--;
- for (i = 1; i < num_cfg; i++)
- cfg[i] = cfg[i + 1];
- }
-
- return maar_config(cfg, num_cfg, num_pairs);
-}
-
phys_addr_t mips_cdmm_phys_base(void)
{
/* This address is "typically unused" */
diff --git a/arch/mips/net/bpf_jit_asm.S b/arch/mips/net/bpf_jit_asm.S
index dabf4179c..5d2e0c8d2 100644
--- a/arch/mips/net/bpf_jit_asm.S
+++ b/arch/mips/net/bpf_jit_asm.S
@@ -57,12 +57,13 @@
LEAF(sk_load_word)
is_offset_negative(word)
- .globl sk_load_word_positive
-sk_load_word_positive:
+FEXPORT(sk_load_word_positive)
is_offset_in_header(4, word)
/* Offset within header boundaries */
PTR_ADDU t1, $r_skb_data, offset
+ .set reorder
lw $r_A, 0(t1)
+ .set noreorder
#ifdef CONFIG_CPU_LITTLE_ENDIAN
# if defined(__mips_isa_rev) && (__mips_isa_rev >= 2)
wsbh t0, $r_A
@@ -85,12 +86,13 @@ sk_load_word_positive:
LEAF(sk_load_half)
is_offset_negative(half)
- .globl sk_load_half_positive
-sk_load_half_positive:
+FEXPORT(sk_load_half_positive)
is_offset_in_header(2, half)
/* Offset within header boundaries */
PTR_ADDU t1, $r_skb_data, offset
+ .set reorder
lh $r_A, 0(t1)
+ .set noreorder
#ifdef CONFIG_CPU_LITTLE_ENDIAN
# if defined(__mips_isa_rev) && (__mips_isa_rev >= 2)
wsbh t0, $r_A
@@ -109,8 +111,7 @@ sk_load_half_positive:
LEAF(sk_load_byte)
is_offset_negative(byte)
- .globl sk_load_byte_positive
-sk_load_byte_positive:
+FEXPORT(sk_load_byte_positive)
is_offset_in_header(1, byte)
/* Offset within header boundaries */
PTR_ADDU t1, $r_skb_data, offset
diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c
index 5f5d18b0e..3660dc67d 100644
--- a/arch/mips/netlogic/common/irq.c
+++ b/arch/mips/netlogic/common/irq.c
@@ -87,7 +87,7 @@ struct nlm_pic_irq {
static void xlp_pic_enable(struct irq_data *d)
{
unsigned long flags;
- struct nlm_pic_irq *pd = irq_data_get_irq_handler_data(d);
+ struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d);
BUG_ON(!pd);
spin_lock_irqsave(&pd->node->piclock, flags);
@@ -97,7 +97,7 @@ static void xlp_pic_enable(struct irq_data *d)
static void xlp_pic_disable(struct irq_data *d)
{
- struct nlm_pic_irq *pd = irq_data_get_irq_handler_data(d);
+ struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d);
unsigned long flags;
BUG_ON(!pd);
@@ -108,7 +108,7 @@ static void xlp_pic_disable(struct irq_data *d)
static void xlp_pic_mask_ack(struct irq_data *d)
{
- struct nlm_pic_irq *pd = irq_data_get_irq_handler_data(d);
+ struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d);
clear_c0_eimr(pd->picirq);
ack_c0_eirr(pd->picirq);
@@ -116,7 +116,7 @@ static void xlp_pic_mask_ack(struct irq_data *d)
static void xlp_pic_unmask(struct irq_data *d)
{
- struct nlm_pic_irq *pd = irq_data_get_irq_handler_data(d);
+ struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d);
BUG_ON(!pd);
@@ -193,7 +193,7 @@ void nlm_setup_pic_irq(int node, int picirq, int irq, int irt)
pic_data->picirq = picirq;
pic_data->node = nlm_get_node(node);
irq_set_chip_and_handler(xirq, &xlp_pic, handle_level_irq);
- irq_set_handler_data(xirq, pic_data);
+ irq_set_chip_data(xirq, pic_data);
}
void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *))
@@ -202,7 +202,7 @@ void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *))
int xirq;
xirq = nlm_irq_to_xirq(node, irq);
- pic_data = irq_get_handler_data(xirq);
+ pic_data = irq_get_chip_data(xirq);
if (WARN_ON(!pic_data))
return;
pic_data->extra_ack = xack;
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index f3d4ae87a..3758715d4 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -47,11 +47,6 @@ static char *nlm_swiotlb;
static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
{
- void *ret;
-
- if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
- return ret;
-
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
@@ -69,11 +64,6 @@ static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
static void nlm_dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
{
- int order = get_order(size);
-
- if (dma_release_from_coherent(dev, order, vaddr))
- return;
-
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index f5fff228b..10d86d548 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -82,8 +82,9 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
}
/* IRQ_IPI_SMP_FUNCTION Handler */
-void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
+void nlm_smp_function_ipi_handler(struct irq_desc *desc)
{
+ unsigned int irq = irq_desc_get_irq(desc);
clear_c0_eimr(irq);
ack_c0_eirr(irq);
generic_smp_call_function_interrupt();
@@ -91,8 +92,9 @@ void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
}
/* IRQ_IPI_SMP_RESCHEDULE handler */
-void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
+void nlm_smp_resched_ipi_handler(struct irq_desc *desc)
{
+ unsigned int irq = irq_desc_get_irq(desc);
clear_c0_eimr(irq);
ack_c0_eirr(irq);
scheduler_ipi();
diff --git a/arch/mips/netlogic/xlp/ahci-init-xlp2.c b/arch/mips/netlogic/xlp/ahci-init-xlp2.c
index 7b066a44e..c11b9c7dc 100644
--- a/arch/mips/netlogic/xlp/ahci-init-xlp2.c
+++ b/arch/mips/netlogic/xlp/ahci-init-xlp2.c
@@ -152,7 +152,7 @@ static const u8 sata_phy_config1[] = {
0xC9, 0xC9, 0x07, 0x07, 0x18, 0x18, 0x01, 0x01, 0x22, 0x00
};
-/* SATA PHY config for register block 2 0x0x8065 .. 0x0x80A4 */
+/* SATA PHY config for register block 2 0x8065 .. 0x80A4 */
static const u8 sata_phy_config2[] = {
0xAA, 0x00, 0x4C, 0xC9, 0xC9, 0x07, 0x07, 0x18,
0x18, 0x05, 0x0C, 0x10, 0x00, 0x10, 0x00, 0xFF,
diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c
index a8f4144a0..80ec92974 100644
--- a/arch/mips/netlogic/xlp/nlm_hal.c
+++ b/arch/mips/netlogic/xlp/nlm_hal.c
@@ -91,6 +91,8 @@ static int xlp9xx_irq_to_irt(int irq)
return 134;
case PIC_SATA_IRQ:
return 143;
+ case PIC_NAND_IRQ:
+ return 151;
case PIC_SPI_IRQ:
return 152;
case PIC_MMC_IRQ:
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index 81f58958c..3c9ec3ddc 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -91,6 +91,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
case CPU_INTERAPTIV:
case CPU_PROAPTIV:
case CPU_P5600:
+ case CPU_I6400:
case CPU_M5150:
case CPU_LOONGSON1:
case CPU_SB1:
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 6a6e2cc55..8f988a61b 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -392,6 +392,10 @@ static int __init mipsxx_init(void)
op_model_mipsxx_ops.cpu_type = "mips/P5600";
break;
+ case CPU_I6400:
+ op_model_mipsxx_ops.cpu_type = "mips/I6400";
+ break;
+
case CPU_M5150:
op_model_mipsxx_ops.cpu_type = "mips/M5150";
break;
diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c
index cffaaf4aa..2a5bb849b 100644
--- a/arch/mips/pci/msi-octeon.c
+++ b/arch/mips/pci/msi-octeon.c
@@ -200,7 +200,7 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
if (type == PCI_CAP_ID_MSI && nvec > 1)
return 1;
- list_for_each_entry(entry, &dev->msi_list, list) {
+ for_each_pci_msi_entry(entry, dev) {
ret = arch_setup_msi_irq(dev, entry);
if (ret < 0)
return ret;
diff --git a/arch/mips/pci/msi-xlp.c b/arch/mips/pci/msi-xlp.c
index 3407495fc..bb14335f8 100644
--- a/arch/mips/pci/msi-xlp.c
+++ b/arch/mips/pci/msi-xlp.c
@@ -131,7 +131,7 @@ struct xlp_msi_data {
*/
static void xlp_msi_enable(struct irq_data *d)
{
- struct xlp_msi_data *md = irq_data_get_irq_handler_data(d);
+ struct xlp_msi_data *md = irq_data_get_irq_chip_data(d);
unsigned long flags;
int vec;
@@ -148,7 +148,7 @@ static void xlp_msi_enable(struct irq_data *d)
static void xlp_msi_disable(struct irq_data *d)
{
- struct xlp_msi_data *md = irq_data_get_irq_handler_data(d);
+ struct xlp_msi_data *md = irq_data_get_irq_chip_data(d);
unsigned long flags;
int vec;
@@ -165,7 +165,7 @@ static void xlp_msi_disable(struct irq_data *d)
static void xlp_msi_mask_ack(struct irq_data *d)
{
- struct xlp_msi_data *md = irq_data_get_irq_handler_data(d);
+ struct xlp_msi_data *md = irq_data_get_irq_chip_data(d);
int link, vec;
link = nlm_irq_msilink(d->irq);
@@ -211,7 +211,7 @@ static void xlp_msix_mask_ack(struct irq_data *d)
msixvec = nlm_irq_msixvec(d->irq);
link = nlm_irq_msixlink(msixvec);
pci_msi_mask_irq(d);
- md = irq_data_get_irq_handler_data(d);
+ md = irq_data_get_irq_chip_data(d);
/* Ack MSI on bridge */
if (cpu_is_xlp9xx()) {
@@ -302,7 +302,7 @@ static int xlp_setup_msi(uint64_t lnkbase, int node, int link,
/* Get MSI data for the link */
lirq = PIC_PCIE_LINK_MSI_IRQ(link);
xirq = nlm_irq_to_xirq(node, nlm_link_msiirq(link, 0));
- md = irq_get_handler_data(xirq);
+ md = irq_get_chip_data(xirq);
msiaddr = MSI_LINK_ADDR(node, link);
spin_lock_irqsave(&md->msi_lock, flags);
@@ -409,7 +409,7 @@ static int xlp_setup_msix(uint64_t lnkbase, int node, int link,
/* Get MSI data for the link */
lirq = PIC_PCIE_MSIX_IRQ(link);
xirq = nlm_irq_to_xirq(node, nlm_link_msixirq(link, 0));
- md = irq_get_handler_data(xirq);
+ md = irq_get_chip_data(xirq);
msixaddr = MSIX_LINK_ADDR(node, link);
spin_lock_irqsave(&md->msi_lock, flags);
@@ -485,7 +485,7 @@ void __init xlp_init_node_msi_irqs(int node, int link)
irq = nlm_irq_to_xirq(node, nlm_link_msiirq(link, 0));
for (i = irq; i < irq + XLP_MSIVEC_PER_LINK; i++) {
irq_set_chip_and_handler(i, &xlp_msi_chip, handle_level_irq);
- irq_set_handler_data(i, md);
+ irq_set_chip_data(i, md);
}
for (i = 0; i < XLP_MSIXVEC_PER_LINK ; i++) {
@@ -508,7 +508,7 @@ void __init xlp_init_node_msi_irqs(int node, int link)
/* Initialize MSI-X extended irq space for the link */
irq = nlm_irq_to_xirq(node, nlm_link_msixirq(link, i));
irq_set_chip_and_handler(irq, &xlp_msix_chip, handle_level_irq);
- irq_set_handler_data(irq, md);
+ irq_set_chip_data(irq, md);
}
}
@@ -520,7 +520,7 @@ void nlm_dispatch_msi(int node, int lirq)
link = lirq - PIC_PCIE_LINK_MSI_IRQ_BASE;
irqbase = nlm_irq_to_xirq(node, nlm_link_msiirq(link, 0));
- md = irq_get_handler_data(irqbase);
+ md = irq_get_chip_data(irqbase);
if (cpu_is_xlp9xx())
status = nlm_read_reg(md->lnkbase, PCIE_9XX_MSI_STATUS) &
md->msi_enabled_mask;
@@ -550,7 +550,7 @@ void nlm_dispatch_msix(int node, int lirq)
link = lirq - PIC_PCIE_MSIX_IRQ_BASE;
irqbase = nlm_irq_to_xirq(node, nlm_link_msixirq(link, 0));
- md = irq_get_handler_data(irqbase);
+ md = irq_get_chip_data(irqbase);
if (cpu_is_xlp9xx())
status = nlm_read_reg(md->lnkbase, PCIE_9XX_MSIX_STATUSX(link));
else
diff --git a/arch/mips/pci/ops-emma2rh.c b/arch/mips/pci/ops-emma2rh.c
index 710aef5c0..2dc97c456 100644
--- a/arch/mips/pci/ops-emma2rh.c
+++ b/arch/mips/pci/ops-emma2rh.c
@@ -25,7 +25,6 @@
#include <linux/types.h>
#include <asm/addrspace.h>
-#include <asm/debug.h>
#include <asm/emma/emma2rh.h>
@@ -40,10 +39,9 @@
static int check_args(struct pci_bus *bus, u32 devfn, u32 * bus_num)
{
/* check if the bus is top-level */
- if (bus->parent != NULL) {
+ if (bus->parent != NULL)
*bus_num = bus->number;
- db_assert(bus_num != NULL);
- } else
+ else
*bus_num = 0;
if (*bus_num == 0) {
diff --git a/arch/mips/pci/pci-ar2315.c b/arch/mips/pci/pci-ar2315.c
index f8d0acb4f..b4fa6413c 100644
--- a/arch/mips/pci/pci-ar2315.c
+++ b/arch/mips/pci/pci-ar2315.c
@@ -318,7 +318,7 @@ static int ar2315_pci_host_setup(struct ar2315_pci_ctrl *apc)
return 0;
}
-static void ar2315_pci_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar2315_pci_irq_handler(struct irq_desc *desc)
{
struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc);
u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) &
diff --git a/arch/mips/pci/pci-ar71xx.c b/arch/mips/pci/pci-ar71xx.c
index 283157f8d..7db963dee 100644
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -226,7 +226,7 @@ static struct pci_ops ar71xx_pci_ops = {
.write = ar71xx_pci_write_config,
};
-static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ar71xx_pci_irq_handler(struct irq_desc *desc)
{
struct ar71xx_pci_controller *apc;
void __iomem *base = ath79_reset_base;
@@ -312,8 +312,8 @@ static void ar71xx_pci_irq_init(struct ar71xx_pci_controller *apc)
irq_set_chip_data(i, apc);
}
- irq_set_handler_data(apc->irq, apc);
- irq_set_chained_handler(apc->irq, ar71xx_pci_irq_handler);
+ irq_set_chained_handler_and_data(apc->irq, ar71xx_pci_irq_handler,
+ apc);
}
static void ar71xx_pci_reset(void)
diff --git a/arch/mips/pci/pci-ar724x.c b/arch/mips/pci/pci-ar724x.c
index 0af362b5a..2013dad70 100644
--- a/arch/mips/pci/pci-ar724x.c
+++ b/arch/mips/pci/pci-ar724x.c
@@ -225,7 +225,7 @@ static struct pci_ops ar724x_pci_ops = {
.write = ar724x_pci_write,
};
-static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ar724x_pci_irq_handler(struct irq_desc *desc)
{
struct ar724x_pci_controller *apc;
void __iomem *base;
@@ -321,8 +321,8 @@ static void ar724x_pci_irq_init(struct ar724x_pci_controller *apc,
irq_set_chip_data(i, apc);
}
- irq_set_handler_data(apc->irq, apc);
- irq_set_chained_handler(apc->irq, ar724x_pci_irq_handler);
+ irq_set_chained_handler_and_data(apc->irq, ar724x_pci_irq_handler,
+ apc);
}
static int ar724x_pci_probe(struct platform_device *pdev)
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index c5347d99c..6a15dbd08 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -20,7 +20,6 @@
#include <linux/of_irq.h>
#include <linux/of_pci.h>
-#include <asm/gpio.h>
#include <asm/addrspace.h>
#include <lantiq_soc.h>
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 80fafe646..ed6732f9a 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -129,7 +129,7 @@ static void rt3883_pci_write_cfg32(struct rt3883_pci_controller *rpc,
rt3883_pci_w32(rpc, val, RT3883_PCI_REG_CFGDATA);
}
-static void rt3883_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void rt3883_pci_irq_handler(struct irq_desc *desc)
{
struct rt3883_pci_controller *rpc;
u32 pending;
@@ -145,7 +145,7 @@ static void rt3883_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
}
while (pending) {
- unsigned bit = __ffs(pending);
+ unsigned irq, bit = __ffs(pending);
irq = irq_find_mapping(rpc->irq_domain, bit);
generic_handle_irq(irq);
@@ -225,8 +225,7 @@ static int rt3883_pci_irq_init(struct device *dev,
return -ENODEV;
}
- irq_set_handler_data(irq, rpc);
- irq_set_chained_handler(irq, rt3883_pci_irq_handler);
+ irq_set_chained_handler_and_data(irq, rt3883_pci_irq_handler, rpc);
return 0;
}
diff --git a/arch/mips/pistachio/Kconfig b/arch/mips/pistachio/Kconfig
new file mode 100644
index 000000000..97731ea94
--- /dev/null
+++ b/arch/mips/pistachio/Kconfig
@@ -0,0 +1,13 @@
+config PISTACHIO_GPTIMER_CLKSRC
+ bool "Enable General Purpose Timer based clocksource"
+ depends on MACH_PISTACHIO
+ select CLKSRC_PISTACHIO
+ select MIPS_EXTERNAL_TIMER
+ help
+ This option enables a clocksource driver based on a Pistachio
+ SoC General Purpose external timer.
+
+ If you want to enable the CPUFreq, you need to enable
+ this option.
+
+ If you don't want to enable CPUFreq, you can leave this disabled.
diff --git a/arch/mips/pmcs-msp71xx/msp_irq_cic.c b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
index 1207ec4df..8b9cf6463 100644
--- a/arch/mips/pmcs-msp71xx/msp_irq_cic.c
+++ b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
@@ -88,7 +88,8 @@ static void unmask_cic_irq(struct irq_data *d)
* Make sure we have IRQ affinity. It may have changed while
* we were processing the IRQ.
*/
- if (!cpumask_test_cpu(smp_processor_id(), d->affinity))
+ if (!cpumask_test_cpu(smp_processor_id(),
+ irq_data_get_affinity_mask(d)))
return;
#endif
diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
index 24bf057a3..a8e70a9f2 100644
--- a/arch/mips/ralink/cevt-rt3352.c
+++ b/arch/mips/ralink/cevt-rt3352.c
@@ -36,8 +36,8 @@ struct systick_device {
int freq_scale;
};
-static void systick_set_clock_mode(enum clock_event_mode mode,
- struct clock_event_device *evt);
+static int systick_set_oneshot(struct clock_event_device *evt);
+static int systick_shutdown(struct clock_event_device *evt);
static int systick_next_event(unsigned long delta,
struct clock_event_device *evt)
@@ -73,11 +73,12 @@ static struct systick_device systick = {
* cevt-r4k uses 300, make sure systick
* gets used if available
*/
- .rating = 310,
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .set_next_event = systick_next_event,
- .set_mode = systick_set_clock_mode,
- .event_handler = systick_event_handler,
+ .rating = 310,
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .set_next_event = systick_next_event,
+ .set_state_shutdown = systick_shutdown,
+ .set_state_oneshot = systick_set_oneshot,
+ .event_handler = systick_event_handler,
},
};
@@ -87,33 +88,33 @@ static struct irqaction systick_irqaction = {
.dev_id = &systick.dev,
};
-static void systick_set_clock_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int systick_shutdown(struct clock_event_device *evt)
{
struct systick_device *sdev;
sdev = container_of(evt, struct systick_device, dev);
- switch (mode) {
- case CLOCK_EVT_MODE_ONESHOT:
- if (!sdev->irq_requested)
- setup_irq(systick.dev.irq, &systick_irqaction);
- sdev->irq_requested = 1;
- iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
- systick.membase + SYSTICK_CONFIG);
- break;
-
- case CLOCK_EVT_MODE_SHUTDOWN:
- if (sdev->irq_requested)
- free_irq(systick.dev.irq, &systick_irqaction);
- sdev->irq_requested = 0;
- iowrite32(0, systick.membase + SYSTICK_CONFIG);
- break;
-
- default:
- pr_err("%s: Unhandeled mips clock_mode\n", systick.dev.name);
- break;
- }
+ if (sdev->irq_requested)
+ free_irq(systick.dev.irq, &systick_irqaction);
+ sdev->irq_requested = 0;
+ iowrite32(0, systick.membase + SYSTICK_CONFIG);
+
+ return 0;
+}
+
+static int systick_set_oneshot(struct clock_event_device *evt)
+{
+ struct systick_device *sdev;
+
+ sdev = container_of(evt, struct systick_device, dev);
+
+ if (!sdev->irq_requested)
+ setup_irq(systick.dev.irq, &systick_irqaction);
+ sdev->irq_requested = 1;
+ iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
+ systick.membase + SYSTICK_CONFIG);
+
+ return 0;
}
static void __init ralink_systick_init(struct device_node *np)
diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index 8c624a8b9..4cf77f358 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -96,7 +96,7 @@ unsigned int get_c0_compare_int(void)
return CP0_LEGACY_COMPARE_IRQ;
}
-static void ralink_intc_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ralink_intc_irq_handler(struct irq_desc *desc)
{
u32 pending = rt_intc_r32(INTC_REG_STATUS0);
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index e31e8cdcb..9bd7a2de0 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -23,6 +23,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/serial_8250.h>
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 5aa3df853..650d5d39f 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -140,6 +140,11 @@ static int rb532_gpio_direction_output(struct gpio_chip *chip,
return 0;
}
+static int rb532_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+ return 8 + 4 * 32 + gpio;
+}
+
static struct rb532_gpio_chip rb532_gpio_chip[] = {
[0] = {
.chip = {
@@ -148,6 +153,7 @@ static struct rb532_gpio_chip rb532_gpio_chip[] = {
.direction_output = rb532_gpio_direction_output,
.get = rb532_gpio_get,
.set = rb532_gpio_set,
+ .to_irq = rb532_gpio_to_irq,
.base = 0,
.ngpio = 32,
},
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index a6d10f607..42d6cb9f9 100644
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -64,12 +64,6 @@ static int rt_next_event(unsigned long delta, struct clock_event_device *evt)
return LOCAL_HUB_L(PI_RT_COUNT) >= cnt ? -ETIME : 0;
}
-static void rt_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- /* Nothing to do ... */
-}
-
unsigned int rt_timer_irq;
static DEFINE_PER_CPU(struct clock_event_device, hub_rt_clockevent);
@@ -124,7 +118,6 @@ void hub_rt_clock_event_init(void)
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
cd->set_next_event = rt_next_event;
- cd->set_mode = rt_set_mode;
clockevents_register_device(cd);
}
diff --git a/arch/mips/sibyte/common/bus_watcher.c b/arch/mips/sibyte/common/bus_watcher.c
index 41a1d2242..a4e55999e 100644
--- a/arch/mips/sibyte/common/bus_watcher.c
+++ b/arch/mips/sibyte/common/bus_watcher.c
@@ -250,4 +250,4 @@ int __init sibyte_bus_watcher(void)
return 0;
}
-__initcall(sibyte_bus_watcher);
+device_initcall(sibyte_bus_watcher);
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index cf8ec568b..fb4b3520c 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -14,44 +14,33 @@
#define SNI_COUNTER2_DIV 64
#define SNI_COUNTER0_DIV ((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ)
-static void a20r_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int a20r_set_periodic(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
- wmb();
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
- wmb();
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
- wmb();
-
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
- wmb();
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
- wmb();
- *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
- wmb();
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
+ wmb();
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
+ wmb();
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
+ wmb();
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- break;
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
+ wmb();
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
+ wmb();
+ *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
+ wmb();
+ return 0;
}
static struct clock_event_device a20r_clockevent_device = {
- .name = "a20r-timer",
- .features = CLOCK_EVT_FEAT_PERIODIC,
+ .name = "a20r-timer",
+ .features = CLOCK_EVT_FEAT_PERIODIC,
/* .mult, .shift, .max_delta_ns and .min_delta_ns left uninitialized */
- .rating = 300,
- .irq = SNI_A20R_IRQ_TIMER,
- .set_mode = a20r_set_mode,
+ .rating = 300,
+ .irq = SNI_A20R_IRQ_TIMER,
+ .set_state_periodic = a20r_set_periodic,
};
static irqreturn_t a20r_interrupt(int irq, void *dev_id)
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 2791b8641..9d9962ab7 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -117,22 +117,6 @@ void clk_put(struct clk *clk)
}
EXPORT_SYMBOL(clk_put);
-/* GPIO support */
-
-#ifdef CONFIG_GPIOLIB
-int gpio_to_irq(unsigned gpio)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL(gpio_to_irq);
-
-int irq_to_gpio(unsigned irq)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL(irq_to_gpio);
-#endif
-
#define BOARD_VEC(board) extern struct txx9_board_vec board;
#include <asm/txx9/boards.h>
#undef BOARD_VEC