Merge branch 'writeback-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git...

[deliverable/linux.git] / arch / x86 / include / asm / perf_event.h

diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index dab39350e51e446917d5b5e302fe1ac2214b10d0..4fabcdf1cfa74b6f6c7c04327e43fb5c7c1466ac 100644 (file)
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -196,11 +196,16 @@ static inline u32 get_ibs_caps(void) { return 0; }
 extern void perf_events_lapic_init(void);
 
 /*
- * Abuse bit 3 of the cpu eflags register to indicate proper PEBS IP fixups.
- * This flag is otherwise unused and ABI specified to be 0, so nobody should
- * care what we do with it.
+ * Abuse bits {3,5} of the cpu eflags register. These flags are otherwise
+ * unused and ABI specified to be 0, so nobody should care what we do with
+ * them.
+ *
+ * EXACT - the IP points to the exact instruction that triggered the
+ *         event (HW bugs exempt).
+ * VM    - original X86_VM_MASK; see set_linear_ip().
  */
 #define PERF_EFLAGS_EXACT      (1UL << 3)
+#define PERF_EFLAGS_VM         (1UL << 5)
 
 struct pt_regs;
 extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
@@ -257,4 +262,6 @@ static inline void perf_check_microcode(void) { }
  static inline void amd_pmu_disable_virt(void) { }
 #endif
 
+#define arch_perf_out_copy_user copy_from_user_nmi
+
 #endif /* _ASM_X86_PERF_EVENT_H */