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| author | Honghua Yin <Hong-Hua.Yin@freescale.com> | 2015-03-16 08:32:02 (GMT) |
|---|---|---|
| committer | Honghua Yin <Hong-Hua.Yin@freescale.com> | 2015-03-16 09:14:44 (GMT) |
| commit | 0e566fe6e5cbbbd02e4e97b38c81fca4623cdc30 (patch) | |
| tree | 2ff49f7cf95c6164ab6e3982dd6d2a9de103e1af /arch | |
| parent | 438a4ba2303445388a2108c3bf2c7514035fb0c5 (diff) | |
| download | linux-fsl-qoriq-0e566fe6e5cbbbd02e4e97b38c81fca4623cdc30.tar.xz | |
Revert "powerpc/perf: fix fsl_emb_pmu_start to write correct pmc value"
This reverts commit a82bc85b91aabe41b47eb7ef4b15c466f671ecbc.
Change-Id: If8da9358abad19bef990e0578a81b48e92487799
Reviewed-on: http://git.am.freescale.net:8181/32775
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Honghua Yin <Hong-Hua.Yin@freescale.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/perf/core-fsl-emb.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-emb.c index 6e92050..d35ae52 100644 --- a/arch/powerpc/perf/core-fsl-emb.c +++ b/arch/powerpc/perf/core-fsl-emb.c @@ -389,7 +389,6 @@ static void fsl_emb_pmu_del(struct perf_event *event, int flags) static void fsl_emb_pmu_start(struct perf_event *event, int ef_flags) { unsigned long flags; - unsigned long val; s64 left; if (event->hw.idx < 0 || !event->hw.sample_period) @@ -406,10 +405,7 @@ static void fsl_emb_pmu_start(struct perf_event *event, int ef_flags) event->hw.state = 0; left = local64_read(&event->hw.period_left); - val = 0; - if (left < 0x80000000L) - val = 0x80000000L - left; - write_pmc(event->hw.idx, val); + write_pmc(event->hw.idx, left); perf_event_update_userpage(event); perf_pmu_enable(event->pmu); |