diff options
Diffstat (limited to 'arch/xtensa/include/asm')
| -rw-r--r-- | arch/xtensa/include/asm/checksum.h | 12 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/gpio.h | 4 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/hw_breakpoint.h | 58 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/io.h | 16 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/irqflags.h | 1 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/pci.h | 3 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/processor.h | 21 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/regs.h | 3 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/thread_info.h | 1 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/timex.h | 9 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/traps.h | 17 |
11 files changed, 110 insertions, 35 deletions
diff --git a/arch/xtensa/include/asm/checksum.h b/arch/xtensa/include/asm/checksum.h index 0593de689..ec35074fc 100644 --- a/arch/xtensa/include/asm/checksum.h +++ b/arch/xtensa/include/asm/checksum.h @@ -123,9 +123,8 @@ static __inline__ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) } static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, + __wsum sum) { #ifdef __XTENSA_EL__ @@ -157,9 +156,8 @@ static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, * returns a 16-bit checksum, already complemented */ static __inline__ __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, + __wsum sum) { return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); } @@ -177,7 +175,7 @@ static __inline__ __sum16 ip_compute_csum(const void *buff, int len) #define _HAVE_ARCH_IPV6_CSUM static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr, - __u32 len, unsigned short proto, + __u32 len, __u8 proto, __wsum sum) { unsigned int __dummy; diff --git a/arch/xtensa/include/asm/gpio.h b/arch/xtensa/include/asm/gpio.h deleted file mode 100644 index b3799d88f..000000000 --- a/arch/xtensa/include/asm/gpio.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __LINUX_GPIO_H -#warning Include linux/gpio.h instead of asm/gpio.h -#include <linux/gpio.h> -#endif diff --git a/arch/xtensa/include/asm/hw_breakpoint.h b/arch/xtensa/include/asm/hw_breakpoint.h new file mode 100644 index 000000000..dbe3053b2 --- /dev/null +++ b/arch/xtensa/include/asm/hw_breakpoint.h @@ -0,0 +1,58 @@ +/* + * Xtensa hardware breakpoints/watchpoints handling functions + * + * 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. + * + * Copyright (C) 2016 Cadence Design Systems Inc. + */ + +#ifndef __ASM_XTENSA_HW_BREAKPOINT_H +#define __ASM_XTENSA_HW_BREAKPOINT_H + +#ifdef CONFIG_HAVE_HW_BREAKPOINT + +#include <linux/kdebug.h> +#include <linux/types.h> +#include <uapi/linux/hw_breakpoint.h> + +/* Breakpoint */ +#define XTENSA_BREAKPOINT_EXECUTE 0 + +/* Watchpoints */ +#define XTENSA_BREAKPOINT_LOAD 1 +#define XTENSA_BREAKPOINT_STORE 2 + +struct arch_hw_breakpoint { + unsigned long address; + u16 len; + u16 type; +}; + +struct perf_event; +struct pt_regs; +struct task_struct; + +int hw_breakpoint_slots(int type); +int arch_check_bp_in_kernelspace(struct perf_event *bp); +int arch_validate_hwbkpt_settings(struct perf_event *bp); +int hw_breakpoint_exceptions_notify(struct notifier_block *unused, + unsigned long val, void *data); + +int arch_install_hw_breakpoint(struct perf_event *bp); +void arch_uninstall_hw_breakpoint(struct perf_event *bp); +void hw_breakpoint_pmu_read(struct perf_event *bp); +int check_hw_breakpoint(struct pt_regs *regs); +void clear_ptrace_hw_breakpoint(struct task_struct *tsk); + +#else + +struct task_struct; + +static inline void clear_ptrace_hw_breakpoint(struct task_struct *tsk) +{ +} + +#endif /* CONFIG_HAVE_HW_BREAKPOINT */ +#endif /* __ASM_XTENSA_HW_BREAKPOINT_H */ diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index 74fed0b4e..c38e5a732 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -25,9 +25,12 @@ #ifdef CONFIG_MMU +void __iomem *xtensa_ioremap_nocache(unsigned long addr, unsigned long size); +void __iomem *xtensa_ioremap_cache(unsigned long addr, unsigned long size); +void xtensa_iounmap(volatile void __iomem *addr); + /* * Return the virtual address for the specified bus memory. - * Note that we currently don't support any address outside the KIO segment. */ static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size) @@ -36,7 +39,7 @@ static inline void __iomem *ioremap_nocache(unsigned long offset, && offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE) return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_BYPASS_VADDR); else - BUG(); + return xtensa_ioremap_nocache(offset, size); } static inline void __iomem *ioremap_cache(unsigned long offset, @@ -46,7 +49,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset, && offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE) return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_CACHED_VADDR); else - BUG(); + return xtensa_ioremap_cache(offset, size); } #define ioremap_cache ioremap_cache @@ -60,6 +63,13 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size) static inline void iounmap(volatile void __iomem *addr) { + unsigned long va = (unsigned long) addr; + + if (!(va >= XCHAL_KIO_CACHED_VADDR && + va - XCHAL_KIO_CACHED_VADDR < XCHAL_KIO_SIZE) && + !(va >= XCHAL_KIO_BYPASS_VADDR && + va - XCHAL_KIO_BYPASS_VADDR < XCHAL_KIO_SIZE)) + xtensa_iounmap(addr); } #define virt_to_bus virt_to_phys diff --git a/arch/xtensa/include/asm/irqflags.h b/arch/xtensa/include/asm/irqflags.h index 8e090c709..407606e57 100644 --- a/arch/xtensa/include/asm/irqflags.h +++ b/arch/xtensa/include/asm/irqflags.h @@ -13,6 +13,7 @@ #define _XTENSA_IRQFLAGS_H #include <linux/types.h> +#include <asm/processor.h> static inline unsigned long arch_local_save_flags(void) { diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h index e438a00fb..5d6bd932b 100644 --- a/arch/xtensa/include/asm/pci.h +++ b/arch/xtensa/include/asm/pci.h @@ -55,9 +55,6 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, #endif /* __KERNEL__ */ -/* Implement the pci_ DMA API in terms of the generic device dma_ one */ -#include <asm-generic/pci-dma-compat.h> - /* Generic PCI */ #include <asm-generic/pci.h> diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 83e2e4bc0..d2e40d39c 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -78,22 +78,20 @@ #define XTENSA_INTLEVEL_MASK(level) _XTENSA_INTLEVEL_MASK(level) #define _XTENSA_INTLEVEL_MASK(level) (XCHAL_INTLEVEL##level##_MASK) -#define IS_POW2(v) (((v) & ((v) - 1)) == 0) +#define XTENSA_INTLEVEL_ANDBELOW_MASK(l) _XTENSA_INTLEVEL_ANDBELOW_MASK(l) +#define _XTENSA_INTLEVEL_ANDBELOW_MASK(l) (XCHAL_INTLEVEL##l##_ANDBELOW_MASK) #define PROFILING_INTLEVEL XTENSA_INT_LEVEL(XCHAL_PROFILING_INTERRUPT) /* LOCKLEVEL defines the interrupt level that masks all * general-purpose interrupts. */ -#if defined(CONFIG_XTENSA_VARIANT_HAVE_PERF_EVENTS) && \ - defined(XCHAL_PROFILING_INTERRUPT) && \ - PROFILING_INTLEVEL == XCHAL_EXCM_LEVEL && \ - XCHAL_EXCM_LEVEL > 1 && \ - IS_POW2(XTENSA_INTLEVEL_MASK(PROFILING_INTLEVEL)) -#define LOCKLEVEL (XCHAL_EXCM_LEVEL - 1) +#if defined(CONFIG_XTENSA_FAKE_NMI) && defined(XCHAL_PROFILING_INTERRUPT) +#define LOCKLEVEL (PROFILING_INTLEVEL - 1) #else #define LOCKLEVEL XCHAL_EXCM_LEVEL #endif + #define TOPLEVEL XCHAL_EXCM_LEVEL #define XTENSA_FAKE_NMI (LOCKLEVEL < TOPLEVEL) @@ -132,11 +130,10 @@ struct thread_struct { unsigned long bad_vaddr; /* last user fault */ unsigned long bad_uaddr; /* last kernel fault accessing user space */ unsigned long error_code; - - unsigned long ibreak[XCHAL_NUM_IBREAK]; - unsigned long dbreaka[XCHAL_NUM_DBREAK]; - unsigned long dbreakc[XCHAL_NUM_DBREAK]; - +#ifdef CONFIG_HAVE_HW_BREAKPOINT + struct perf_event *ptrace_bp[XCHAL_NUM_IBREAK]; + struct perf_event *ptrace_wp[XCHAL_NUM_DBREAK]; +#endif /* Make structure 16 bytes aligned. */ int align[0] __attribute__ ((aligned(16))); }; diff --git a/arch/xtensa/include/asm/regs.h b/arch/xtensa/include/asm/regs.h index 4ba9f516b..881a1134a 100644 --- a/arch/xtensa/include/asm/regs.h +++ b/arch/xtensa/include/asm/regs.h @@ -28,6 +28,7 @@ /* Special registers. */ #define SREG_MR 32 +#define SREG_IBREAKENABLE 96 #define SREG_IBREAKA 128 #define SREG_DBREAKA 144 #define SREG_DBREAKC 160 @@ -103,6 +104,8 @@ /* DEBUGCAUSE register fields. */ +#define DEBUGCAUSE_DBNUM_MASK 0xf00 +#define DEBUGCAUSE_DBNUM_SHIFT 8 /* First bit of DBNUM field */ #define DEBUGCAUSE_DEBUGINT_BIT 5 /* External debug interrupt */ #define DEBUGCAUSE_BREAKN_BIT 4 /* BREAK.N instruction */ #define DEBUGCAUSE_BREAK_BIT 3 /* BREAK instruction */ diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h index 9ad12c617..7be2400f7 100644 --- a/arch/xtensa/include/asm/thread_info.h +++ b/arch/xtensa/include/asm/thread_info.h @@ -111,6 +111,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 5 /* is terminating due to OOM killer */ #define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */ #define TIF_NOTIFY_RESUME 7 /* callback before returning to user */ +#define TIF_DB_DISABLED 8 /* debug trap disabled for syscall */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) diff --git a/arch/xtensa/include/asm/timex.h b/arch/xtensa/include/asm/timex.h index ca929e6a3..f9b389d4e 100644 --- a/arch/xtensa/include/asm/timex.h +++ b/arch/xtensa/include/asm/timex.h @@ -12,19 +12,16 @@ #include <asm/processor.h> #include <linux/stringify.h> -#define _INTLEVEL(x) XCHAL_INT ## x ## _LEVEL -#define INTLEVEL(x) _INTLEVEL(x) - #if XCHAL_NUM_TIMERS > 0 && \ - INTLEVEL(XCHAL_TIMER0_INTERRUPT) <= XCHAL_EXCM_LEVEL + XTENSA_INT_LEVEL(XCHAL_TIMER0_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 0 # define LINUX_TIMER_INT XCHAL_TIMER0_INTERRUPT #elif XCHAL_NUM_TIMERS > 1 && \ - INTLEVEL(XCHAL_TIMER1_INTERRUPT) <= XCHAL_EXCM_LEVEL + XTENSA_INT_LEVEL(XCHAL_TIMER1_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 1 # define LINUX_TIMER_INT XCHAL_TIMER1_INTERRUPT #elif XCHAL_NUM_TIMERS > 2 && \ - INTLEVEL(XCHAL_TIMER2_INTERRUPT) <= XCHAL_EXCM_LEVEL + XTENSA_INT_LEVEL(XCHAL_TIMER2_INTERRUPT) <= XCHAL_EXCM_LEVEL # define LINUX_TIMER 2 # define LINUX_TIMER_INT XCHAL_TIMER2_INTERRUPT #else diff --git a/arch/xtensa/include/asm/traps.h b/arch/xtensa/include/asm/traps.h index 28f33a8b7..2e69aa4b8 100644 --- a/arch/xtensa/include/asm/traps.h +++ b/arch/xtensa/include/asm/traps.h @@ -65,4 +65,21 @@ static inline void spill_registers(void) #endif } +struct debug_table { + /* Pointer to debug exception handler */ + void (*debug_exception)(void); + /* Temporary register save area */ + unsigned long debug_save[1]; +#ifdef CONFIG_HAVE_HW_BREAKPOINT + /* Save area for DBREAKC registers */ + unsigned long dbreakc_save[XCHAL_NUM_DBREAK]; + /* Saved ICOUNT register */ + unsigned long icount_save; + /* Saved ICOUNTLEVEL register */ + unsigned long icount_level_save; +#endif +}; + +void debug_exception(void); + #endif /* _XTENSA_TRAPS_H */ |