arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit

This is a port of f2fe09b ("ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit") to arm64, which fixes the broken evtype mask to include the NSH bit, allowing profiling at EL2. Cc: <[email protected]> Signed-off-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
tomthink · Aug 20, 2013 · 178cd9c · 178cd9c
1 parent 8455e6e
commit 178cd9c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
@@ -784,7 +784,7 @@ static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
 /*
  * PMXEVTYPER: Event selection reg
  */
-#define	ARMV8_EVTYPE_MASK	0xc00000ff	/* Mask for writable bits */
+#define	ARMV8_EVTYPE_MASK	0xc80000ff	/* Mask for writable bits */
 #define	ARMV8_EVTYPE_EVENT	0xff		/* Mask for EVENT bits */
 
 /*