Merge remote-tracking branch 'drm/drm-next'

[karo-tx-linux.git] / arch / mips / include / asm / thread_info.h

diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 61215a34acc68ff87da07665c65c8dc0f6dbfcc1..f9b24bfbdbae96f8cc31d58d7cb0318130ceab9f 100644 (file)
--- 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 */