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author | Chris Mason <clm@fb.com> | 2016-05-17 21:43:19 (GMT) |
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committer | Chris Mason <clm@fb.com> | 2016-05-17 21:43:19 (GMT) |
commit | c315ef8d9db7f1a0ebd023a395ebdfde1c68057e (patch) | |
tree | 501e1fc558de9e56b78e457aa928fa255e660486 /arch/x86/events/intel/lbr.c | |
parent | a88336d13c66fc171f336c6332fcb67339894e08 (diff) | |
parent | 5f9a8a51d8b95505d8de8b7191ae2ed8c504d4af (diff) | |
download | linux-c315ef8d9db7f1a0ebd023a395ebdfde1c68057e.tar.xz |
Merge branch 'for-chris-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.7
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'arch/x86/events/intel/lbr.c')
-rw-r--r-- | arch/x86/events/intel/lbr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index 6c3b7c1..1ca5d1e 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -63,7 +63,7 @@ static enum { #define LBR_PLM (LBR_KERNEL | LBR_USER) -#define LBR_SEL_MASK 0x1ff /* valid bits in LBR_SELECT */ +#define LBR_SEL_MASK 0x3ff /* valid bits in LBR_SELECT */ #define LBR_NOT_SUPP -1 /* LBR filter not supported */ #define LBR_IGN 0 /* ignored */ @@ -610,8 +610,10 @@ static int intel_pmu_setup_hw_lbr_filter(struct perf_event *event) * The first 9 bits (LBR_SEL_MASK) in LBR_SELECT operate * in suppress mode. So LBR_SELECT should be set to * (~mask & LBR_SEL_MASK) | (mask & ~LBR_SEL_MASK) + * But the 10th bit LBR_CALL_STACK does not operate + * in suppress mode. */ - reg->config = mask ^ x86_pmu.lbr_sel_mask; + reg->config = mask ^ (x86_pmu.lbr_sel_mask & ~LBR_CALL_STACK); if ((br_type & PERF_SAMPLE_BRANCH_NO_CYCLES) && (br_type & PERF_SAMPLE_BRANCH_NO_FLAGS) && |