Commit-ID: a10d60c08cc3bbea9195e2b36440f557373623eb Gitweb: http://git.kernel.org/tip/a10d60c08cc3bbea9195e2b36440f557373623eb Author: Vince Weaver <[email protected]> AuthorDate: Sun, 15 Jun 2014 02:06:15 -0400 Committer: Ingo Molnar <[email protected]> CommitDate: Thu, 19 Jun 2014 19:37:51 +0200
sh, perf: Use common PMU interrupt disabled code Transition to using the new generic PERF_PMU_CAP_NO_INTERRUPT method for failing a sampling event when no PMU interrupt is available. Signed-off-by: Vince Weaver <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/alpine.deb.2.10.1406150205300.16...@vincent-weaver-1.umelst.maine.edu Signed-off-by: Ingo Molnar <[email protected]> --- arch/sh/kernel/perf_event.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/sh/kernel/perf_event.c b/arch/sh/kernel/perf_event.c index 0233167..7cfd7f1 100644 --- a/arch/sh/kernel/perf_event.c +++ b/arch/sh/kernel/perf_event.c @@ -129,14 +129,6 @@ static int __hw_perf_event_init(struct perf_event *event) return -ENODEV; /* - * All of the on-chip counters are "limited", in that they have - * no interrupts, and are therefore unable to do sampling without - * further work and timer assistance. - */ - if (hwc->sample_period) - return -EINVAL; - - /* * See if we need to reserve the counter. * * If no events are currently in use, then we have to take a @@ -392,6 +384,13 @@ int register_sh_pmu(struct sh_pmu *_pmu) pr_info("Performance Events: %s support registered\n", _pmu->name); + /* + * All of the on-chip counters are "limited", in that they have + * no interrupts, and are therefore unable to do sampling without + * further work and timer assistance. + */ + pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; + WARN_ON(_pmu->num_events > MAX_HWEVENTS); perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
