[PATCH] perf, x86: Don't mark DataLA addresses as store

From: Andi Kleen
Date: Thu Apr 17 2014 - 19:39:38 EST


From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

Haswell supports reporting the data address for a range
of events, including UOPS_RETIRED.ALL and some load
events. Currently these addresses were always marked
as stores, which is wrong, as they could be loads too.
Change it to NA instead.

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/perf_event_intel_ds.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index ae96cfa..7e9546a 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -113,7 +113,7 @@ static u64 precise_store_data_hsw(u64 status)
union perf_mem_data_src dse;

dse.val = 0;
- dse.mem_op = PERF_MEM_OP_STORE;
+ dse.mem_op = PERF_MEM_OP_NA;
dse.mem_lvl = PERF_MEM_LVL_NA;
if (status & 1)
dse.mem_lvl = PERF_MEM_LVL_L1;
--
1.8.5.3

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