Commit-ID: 6e316f9c19a088586fd9ae058f9ea35b271571f3 Gitweb: http://git.kernel.org/tip/6e316f9c19a088586fd9ae058f9ea35b271571f3 Author: Vince Weaver <[email protected]> AuthorDate: Sun, 15 Jun 2014 02:01:58 -0400 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 18 Jun 2014 18:43:45 +0200
blackfin, 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: Steven Miao <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/alpine.deb.2.10.1406150200360.16...@vincent-weaver-1.umelst.maine.edu Signed-off-by: Ingo Molnar <[email protected]> --- arch/blackfin/kernel/perf_event.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/blackfin/kernel/perf_event.c b/arch/blackfin/kernel/perf_event.c index 974e554..ea20320 100644 --- a/arch/blackfin/kernel/perf_event.c +++ b/arch/blackfin/kernel/perf_event.c @@ -389,14 +389,6 @@ static int bfin_pmu_event_init(struct perf_event *event) if (attr->exclude_hv || attr->exclude_idle) return -EPERM; - /* - * 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; - ret = 0; switch (attr->type) { case PERF_TYPE_RAW: @@ -490,6 +482,13 @@ static int __init bfin_pmu_init(void) { int ret; + /* + * 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; + ret = perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW); if (!ret) perf_cpu_notifier(bfin_pmu_notifier); -- 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/
