diff options
Diffstat (limited to 'arch/mips/include/asm/thread_info.h')
| -rw-r--r-- | arch/mips/include/asm/thread_info.h | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h index 61215a34acc..f9b24bfbdba 100644 --- a/arch/mips/include/asm/thread_info.h +++ b/arch/mips/include/asm/thread_info.h @@ -116,6 +116,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */ #define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */ #define TIF_LOAD_WATCH 25 /* If set, load watch registers */ +#define TIF_SYSCALL_TRACEPOINT 26 /* syscall tracepoint instrumentation */ #define TIF_SYSCALL_TRACE 31 /* syscall trace active */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) @@ -132,21 +133,54 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_32BIT_ADDR (1<<TIF_32BIT_ADDR) #define _TIF_FPUBOUND (1<<TIF_FPUBOUND) #define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH) +#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) #define _TIF_WORK_SYSCALL_ENTRY (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \ - _TIF_SYSCALL_AUDIT) + _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT) /* work to do in syscall_trace_leave() */ #define _TIF_WORK_SYSCALL_EXIT (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \ - _TIF_SYSCALL_AUDIT) + _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME) /* work to do on any return to u-space */ #define _TIF_ALLWORK_MASK (_TIF_NOHZ | _TIF_WORK_MASK | \ - _TIF_WORK_SYSCALL_EXIT) + _TIF_WORK_SYSCALL_EXIT | \ + _TIF_SYSCALL_TRACEPOINT) -#endif /* __KERNEL__ */ +/* + * We stash processor id into a COP0 register to retrieve it fast + * at kernel exception entry. + */ +#if defined(CONFIG_MIPS_MT_SMTC) +#define SMP_CPUID_REG 2, 2 /* TCBIND */ +#define ASM_SMP_CPUID_REG $2, 2 +#define SMP_CPUID_PTRSHIFT 19 +#elif defined(CONFIG_MIPS_PGD_C0_CONTEXT) +#define SMP_CPUID_REG 20, 0 /* XCONTEXT */ +#define ASM_SMP_CPUID_REG $20 +#define SMP_CPUID_PTRSHIFT 48 +#else +#define SMP_CPUID_REG 4, 0 /* CONTEXT */ +#define ASM_SMP_CPUID_REG $4 +#define SMP_CPUID_PTRSHIFT 23 +#endif +#ifdef CONFIG_64BIT +#define SMP_CPUID_REGSHIFT (SMP_CPUID_PTRSHIFT + 3) +#else +#define SMP_CPUID_REGSHIFT (SMP_CPUID_PTRSHIFT + 2) +#endif + +#ifdef CONFIG_MIPS_MT_SMTC +#define ASM_CPUID_MFC0 mfc0 +#define UASM_i_CPUID_MFC0 uasm_i_mfc0 +#else +#define ASM_CPUID_MFC0 MFC0 +#define UASM_i_CPUID_MFC0 UASM_i_MFC0 +#endif + +#endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ |