Commit 63fb3f9b authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar

perf, x86: Fix LBR read-out

Don't decrement the TOS twice...
Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d80c7502
...@@ -129,7 +129,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) ...@@ -129,7 +129,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc)
u64 tos = intel_pmu_lbr_tos(); u64 tos = intel_pmu_lbr_tos();
int i; int i;
for (i = 0; i < x86_pmu.lbr_nr; i++, tos--) { for (i = 0; i < x86_pmu.lbr_nr; i++) {
unsigned long lbr_idx = (tos - i) & mask; unsigned long lbr_idx = (tos - i) & mask;
union { union {
struct { struct {
...@@ -162,7 +162,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc) ...@@ -162,7 +162,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
u64 tos = intel_pmu_lbr_tos(); u64 tos = intel_pmu_lbr_tos();
int i; int i;
for (i = 0; i < x86_pmu.lbr_nr; i++, tos--) { for (i = 0; i < x86_pmu.lbr_nr; i++) {
unsigned long lbr_idx = (tos - i) & mask; unsigned long lbr_idx = (tos - i) & mask;
u64 from, to, flags = 0; u64 from, to, flags = 0;
......
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