perf: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform

BRBE captured branch types will overflow perf_branch_entry.type and generic
branch types in perf_branch_entry.new_type. So override each available arch
specific branch type in the following manner to comprehensively process all
reported branch types in BRBE.

  PERF_BR_ARM64_FIQ            PERF_BR_NEW_ARCH_1
  PERF_BR_ARM64_DEBUG_HALT     PERF_BR_NEW_ARCH_2
  PERF_BR_ARM64_DEBUG_EXIT     PERF_BR_NEW_ARCH_3
  PERF_BR_ARM64_DEBUG_INST     PERF_BR_NEW_ARCH_4
  PERF_BR_ARM64_DEBUG_DATA     PERF_BR_NEW_ARCH_5

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: James Clark <james.clark@arm.com>
Link: https://lkml.kernel.org/r/20220824044822.70230-5-anshuman.khandual@arm.com

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 1a258d45a3fa6eb716a74f89c84d3bcb9ff6031c..dca16582885ff73f969c1b46ba845d407ca740db 100644 (file)
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -293,6 +293,12 @@ enum {
        PERF_BR_PRIV_HV         = 3,
 };
 
+#define PERF_BR_ARM64_FIQ              PERF_BR_NEW_ARCH_1
+#define PERF_BR_ARM64_DEBUG_HALT       PERF_BR_NEW_ARCH_2
+#define PERF_BR_ARM64_DEBUG_EXIT       PERF_BR_NEW_ARCH_3
+#define PERF_BR_ARM64_DEBUG_INST       PERF_BR_NEW_ARCH_4
+#define PERF_BR_ARM64_DEBUG_DATA       PERF_BR_NEW_ARCH_5
+
 #define PERF_SAMPLE_BRANCH_PLM_ALL \
        (PERF_SAMPLE_BRANCH_USER|\
         PERF_SAMPLE_BRANCH_KERNEL|\