summaryrefslogtreecommitdiff
path: root/arch/mips/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/Kconfig')
-rw-r--r--arch/mips/Kconfig176
1 files changed, 154 insertions, 22 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2018c2b0e..ac91939b9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -15,7 +15,7 @@ config MIPS
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
- select HAVE_BPF_JIT if !CPU_MICROMIPS
+ select HAVE_CBPF_JIT if !CPU_MICROMIPS
select HAVE_FUNCTION_TRACER
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
@@ -48,6 +48,7 @@ config MIPS
select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
select GENERIC_CMOS_UPDATE
select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_NMI
select VIRT_TO_BUS
select MODULES_USE_ELF_REL if MODULES
select MODULES_USE_ELF_RELA if MODULES && 64BIT
@@ -62,6 +63,7 @@ config MIPS
select HAVE_IRQ_TIME_ACCOUNTING
select GENERIC_TIME_VSYSCALL
select ARCH_CLOCKSOURCE_DATA
+ select HANDLE_DOMAIN_IRQ
menu "Machine selection"
@@ -79,7 +81,7 @@ config MIPS_ALCHEMY
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_APM_EMULATION
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select SYS_SUPPORTS_ZBOOT
select COMMON_CLK
@@ -98,7 +100,7 @@ config AR7
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_ZBOOT_UART16550
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select VLYNQ
select HAVE_CLK
help
@@ -122,11 +124,11 @@ 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
select CSRC_R4K
select DMA_NONCOHERENT
+ select GPIOLIB
select HAVE_CLK
select COMMON_CLK
select CLKDEV_LOOKUP
@@ -137,7 +139,7 @@ config ATH79
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
- select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_ZBOOT_UART_PROM
select USE_OF
help
Support for the Atheros AR71XX/AR724X/AR913X SoCs.
@@ -170,7 +172,6 @@ config BMIPS_GENERIC
select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
- select ARCH_WANT_OPTIONAL_GPIOLIB
help
Build a generic DT-based kernel image that boots on select
BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
@@ -179,7 +180,6 @@ config BMIPS_GENERIC
config BCM47XX
bool "Broadcom BCM47XX based boards"
- select ARCH_WANT_OPTIONAL_GPIOLIB
select BOOT_RAW
select CEVT_R4K
select CSRC_R4K
@@ -196,6 +196,7 @@ config BCM47XX
select GPIOLIB
select LEDS_GPIO_REGISTER
select BCM47XX_NVRAM
+ select BCM47XX_SPROM
help
Support for BCM47XX based boards
@@ -211,7 +212,7 @@ config BCM63XX
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_HAS_EARLY_PRINTK
select SWAP_IO_SPACE
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select HAVE_CLK
select MIPS_L1_CACHE_SHIFT_4
help
@@ -305,7 +306,7 @@ config MACH_INGENIC
select SYS_SUPPORTS_ZBOOT_UART16550
select DMA_NONCOHERENT
select IRQ_MIPS_CPU
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select COMMON_CLK
select GENERIC_IRQ_CHIP
select BUILTIN_DTB
@@ -325,7 +326,7 @@ config LANTIQ
select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_MULTITHREADING
select SYS_HAS_EARLY_PRINTK
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select SWAP_IO_SPACE
select BOOT_RAW
select CLKDEV_LOOKUP
@@ -377,7 +378,6 @@ config MACH_LOONGSON64
config MACH_PISTACHIO
bool "IMG Pistachio SoC based boards"
- select ARCH_REQUIRE_GPIOLIB
select BOOT_ELF32
select BOOT_RAW
select CEVT_R4K
@@ -385,6 +385,7 @@ config MACH_PISTACHIO
select COMMON_CLK
select CSRC_R4K
select DMA_MAYBE_COHERENT
+ select GPIOLIB
select IRQ_MIPS_CPU
select LIBFDT
select MFD_SYSCON
@@ -397,6 +398,7 @@ config MACH_PISTACHIO
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS_CPS
select SYS_SUPPORTS_MULTITHREADING
+ select SYS_SUPPORTS_RELOCATABLE
select SYS_SUPPORTS_ZBOOT
select SYS_HAS_EARLY_PRINTK
select USE_GENERIC_EARLY_PRINTK_8250
@@ -406,13 +408,13 @@ config MACH_PISTACHIO
config MACH_XILFPGA
bool "MIPSfpga Xilinx based boards"
- select ARCH_REQUIRE_GPIOLIB
select BOOT_ELF32
select BOOT_RAW
select BUILTIN_DTB
select CEVT_R4K
select COMMON_CLK
select CSRC_R4K
+ select GPIOLIB
select IRQ_MIPS_CPU
select LIBFDT
select MIPS_CPU_SCACHE
@@ -473,6 +475,7 @@ config MIPS_MALTA
select SYS_SUPPORTS_MULTITHREADING
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_RELOCATABLE
select USE_OF
select ZONE_DMA32 if 64BIT
select BUILTIN_DTB
@@ -507,6 +510,7 @@ config MIPS_SEAD3
select MIPS_MSC
select SYS_HAS_CPU_MIPS32_R1
select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_CPU_MIPS32_R6
select SYS_HAS_CPU_MIPS64_R1
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_32BIT_KERNEL
@@ -516,6 +520,7 @@ config MIPS_SEAD3
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_MICROMIPS
select SYS_SUPPORTS_MIPS16
+ select SYS_SUPPORTS_RELOCATABLE
select USB_EHCI_BIG_ENDIAN_DESC
select USB_EHCI_BIG_ENDIAN_MMIO
select USE_OF
@@ -536,7 +541,7 @@ config MACH_VR41XX
select CSRC_R4K
select SYS_HAS_CPU_VR41XX
select SYS_SUPPORTS_MIPS16
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
config NXP_STB220
bool "NXP STB220 board"
@@ -856,7 +861,7 @@ config MIKROTIK_RB532
select SYS_SUPPORTS_LITTLE_ENDIAN
select SWAP_IO_SPACE
select BOOT_RAW
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select MIPS_L1_CACHE_SHIFT_4
help
Support the Mikrotik(tm) RouterBoard 532 series,
@@ -879,7 +884,7 @@ config CAVIUM_OCTEON_SOC
select HW_HAS_PCI
select ZONE_DMA32
select HOLES_IN_ZONE
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
select LIBFDT
select USE_OF
select ARCH_SPARSEMEM_ENABLE
@@ -937,7 +942,7 @@ 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 GPIOLIB
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
@@ -1077,7 +1082,7 @@ config MIPS_CLOCK_VSYSCALL
def_bool CSRC_R4K || CLKSRC_MIPS_GIC
config GPIO_TXX9
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
bool
config FW_CFE
@@ -1155,6 +1160,13 @@ config ISA_DMA_API
config HOLES_IN_ZONE
bool
+config SYS_SUPPORTS_RELOCATABLE
+ bool
+ help
+ Selected if the platform supports relocating the kernel.
+ The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
+ to allow access to command line and entropy sources.
+
#
# Endianness selection. Sufficiently obscure so many users don't know what to
# answer,so we try hard to limit the available choices. Also the use of a
@@ -1342,11 +1354,30 @@ config CPU_LOONGSON3
select CPU_SUPPORTS_HUGEPAGES
select WEAK_ORDERING
select WEAK_REORDERING_BEYOND_LLSC
- select ARCH_REQUIRE_GPIOLIB
+ select MIPS_PGD_C0_CONTEXT
+ select GPIOLIB
help
The Loongson 3 processor implements the MIPS64R2 instruction
set with many extensions.
+config LOONGSON3_ENHANCEMENT
+ bool "New Loongson 3 CPU Enhancements"
+ default n
+ select CPU_MIPSR2
+ select CPU_HAS_PREFETCH
+ depends on CPU_LOONGSON3
+ help
+ New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
+ R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
+ FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
+ Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
+ Fast TLB refill support, etc.
+
+ This option enable those enhancements which are not probed at run
+ time. If you want a generic kernel to run on all Loongson 3 machines,
+ please say 'N' here. If you want a high-performance kernel to run on
+ new Loongson 3 machines only, please say 'Y' here.
+
config CPU_LOONGSON2E
bool "Loongson 2E"
depends on SYS_HAS_CPU_LOONGSON2E
@@ -1362,7 +1393,7 @@ config CPU_LOONGSON2F
bool "Loongson 2F"
depends on SYS_HAS_CPU_LOONGSON2F
select CPU_LOONGSON2
- select ARCH_REQUIRE_GPIOLIB
+ select GPIOLIB
help
The Loongson 2F processor implements the MIPS III instruction set
with many extensions.
@@ -1375,6 +1406,8 @@ config CPU_LOONGSON1B
bool "Loongson 1B"
depends on SYS_HAS_CPU_LOONGSON1B
select CPU_LOONGSON1
+ select ARCH_WANT_OPTIONAL_GPIOLIB
+ select LEDS_GPIO_REGISTER
help
The Loongson 1B is a 32-bit SoC, which implements the MIPS32
release 2 instruction set.
@@ -1673,6 +1706,7 @@ config CPU_XLP
select CPU_HAS_PREFETCH
select CPU_MIPSR2
select CPU_SUPPORTS_HUGEPAGES
+ select MIPS_ASID_BITS_VARIABLE
help
Netlogic Microsystems XLP processors.
endchoice
@@ -1798,6 +1832,7 @@ config CPU_BMIPS4380
select MIPS_L1_CACHE_SHIFT_6
select SYS_SUPPORTS_SMP
select SYS_SUPPORTS_HOTPLUG_CPU
+ select CPU_HAS_RIXI
config CPU_BMIPS5000
bool
@@ -1805,10 +1840,12 @@ config CPU_BMIPS5000
select MIPS_L1_CACHE_SHIFT_7
select SYS_SUPPORTS_SMP
select SYS_SUPPORTS_HOTPLUG_CPU
+ select CPU_HAS_RIXI
config SYS_HAS_CPU_LOONGSON3
bool
select CPU_SUPPORTS_CPUFREQ
+ select CPU_HAS_RIXI
config SYS_HAS_CPU_LOONGSON2E
bool
@@ -1961,11 +1998,15 @@ config CPU_MIPSR1
config CPU_MIPSR2
bool
default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
+ select CPU_HAS_RIXI
select MIPS_SPRAM
config CPU_MIPSR6
bool
default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
+ select CPU_HAS_RIXI
+ select HAVE_ARCH_BITREVERSE
+ select MIPS_ASID_BITS_VARIABLE
select MIPS_SPRAM
config EVA
@@ -1999,7 +2040,7 @@ config MIPS_PGD_C0_CONTEXT
#
config HARDWARE_WATCHPOINTS
bool
- default y if CPU_MIPSR1 || CPU_MIPSR2
+ default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
menu "Kernel type"
@@ -2042,6 +2083,16 @@ config KVM_GUEST_TIMER_FREQ
emulation when determining guest CPU Frequency. Instead, the guest's
timer frequency is specified directly.
+config MIPS_VA_BITS_48
+ bool "48 bits virtual memory"
+ depends on 64BIT
+ help
+ Support a maximum at least 48 bits of application virtual memory.
+ Default is 40 bits or less, depending on the CPU.
+ This option result in a small memory overhead for page tables.
+ This option is only supported with 16k and 64k page sizes.
+ If unsure, say N.
+
choice
prompt "Kernel page size"
default PAGE_SIZE_4KB
@@ -2049,6 +2100,7 @@ choice
config PAGE_SIZE_4KB
bool "4kB"
depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
+ depends on !MIPS_VA_BITS_48
help
This option select the standard 4kB Linux page size. On some
R3000-family processors this is the only available page size. Using
@@ -2058,6 +2110,7 @@ config PAGE_SIZE_4KB
config PAGE_SIZE_8KB
bool "8kB"
depends on CPU_R8000 || CPU_CAVIUM_OCTEON
+ depends on !MIPS_VA_BITS_48
help
Using 8kB page size will result in higher performance kernel at
the price of higher memory consumption. This option is available
@@ -2076,6 +2129,7 @@ config PAGE_SIZE_16KB
config PAGE_SIZE_32KB
bool "32kB"
depends on CPU_CAVIUM_OCTEON
+ depends on !MIPS_VA_BITS_48
help
Using 32kB page size will result in higher performance kernel at
the price of higher memory consumption. This option is available
@@ -2280,7 +2334,7 @@ config MIPS_CMP
config MIPS_CPS
bool "MIPS Coherent Processing System support"
- depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
+ depends on SYS_SUPPORTS_MIPS_CPS
select MIPS_CM
select MIPS_CPC
select MIPS_CPS_PM if HOTPLUG_CPU
@@ -2371,6 +2425,9 @@ config CPU_HAS_WB
config XKS01
bool
+config CPU_HAS_RIXI
+ bool
+
#
# Vectored interrupt mode is an R2 feature
#
@@ -2401,6 +2458,21 @@ config CPU_R4000_WORKAROUNDS
config CPU_R4400_WORKAROUNDS
bool
+config MIPS_ASID_SHIFT
+ int
+ default 6 if CPU_R3000 || CPU_TX39XX
+ default 4 if CPU_R8000
+ default 0
+
+config MIPS_ASID_BITS
+ int
+ default 0 if MIPS_ASID_BITS_VARIABLE
+ default 6 if CPU_R3000 || CPU_TX39XX
+ default 8
+
+config MIPS_ASID_BITS_VARIABLE
+ bool
+
#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
@@ -2470,6 +2542,61 @@ config NUMA
config SYS_SUPPORTS_NUMA
bool
+config RELOCATABLE
+ bool "Relocatable kernel"
+ depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
+ help
+ This builds a kernel image that retains relocation information
+ so it can be loaded someplace besides the default 1MB.
+ The relocations make the kernel binary about 15% larger,
+ but are discarded at runtime
+
+config RELOCATION_TABLE_SIZE
+ hex "Relocation table size"
+ depends on RELOCATABLE
+ range 0x0 0x01000000
+ default "0x00100000"
+ ---help---
+ A table of relocation data will be appended to the kernel binary
+ and parsed at boot to fix up the relocated kernel.
+
+ This option allows the amount of space reserved for the table to be
+ adjusted, although the default of 1Mb should be ok in most cases.
+
+ The build will fail and a valid size suggested if this is too small.
+
+ If unsure, leave at the default value.
+
+config RANDOMIZE_BASE
+ bool "Randomize the address of the kernel image"
+ depends on RELOCATABLE
+ ---help---
+ Randomizes the physical and virtual address at which the
+ kernel image is loaded, as a security feature that
+ deters exploit attempts relying on knowledge of the location
+ of kernel internals.
+
+ Entropy is generated using any coprocessor 0 registers available.
+
+ The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
+
+ If unsure, say N.
+
+config RANDOMIZE_BASE_MAX_OFFSET
+ hex "Maximum kASLR offset" if EXPERT
+ depends on RANDOMIZE_BASE
+ range 0x0 0x40000000 if EVA || 64BIT
+ range 0x0 0x08000000
+ default "0x01000000"
+ ---help---
+ When kASLR is active, this provides the maximum offset that will
+ be applied to the kernel image. It should be set according to the
+ amount of physical RAM available in the target system minus
+ PHYSICAL_START and must be a power of 2.
+
+ This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
+ EVA or 64-bit. The default is 16Mb.
+
config NODES_SHIFT
int
default "6"
@@ -2477,7 +2604,7 @@ config NODES_SHIFT
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
- depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
+ depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
default y
help
Enable hardware performance counter support for perf events. If
@@ -2810,6 +2937,10 @@ choice
config MIPS_CMDLINE_FROM_BOOTLOADER
bool "Bootloader kernel arguments if available"
+
+ config MIPS_CMDLINE_BUILTIN_EXTEND
+ depends on CMDLINE_BOOL
+ bool "Extend builtin kernel arguments with bootloader arguments"
endchoice
endmenu
@@ -2987,6 +3118,7 @@ config MIPS32_N32
config BINFMT_ELF32
bool
default y if MIPS32_O32 || MIPS32_N32
+ select ELFCORE
endmenu