Andrew Murray <andrew.murray@xxxxxxx> writes:
> For PowerPC PMUs that do not support context exclusion let's
> advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that
> perf will prevent us from handling events where any exclusion flags
> are set. Let's also remove the now unnecessary check for exclusion
> flags.
>
> Signed-off-by: Andrew Murray <andrew.murray@xxxxxxx>
> ---
> arch/powerpc/perf/hv-24x7.c | 10 +---------
> arch/powerpc/perf/hv-gpci.c | 10 +---------
> arch/powerpc/perf/imc-pmu.c | 19 +------------------
> 3 files changed, 3 insertions(+), 36 deletions(-)
Looks good.
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)
cheers
> diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
> index 72238ee..d2b8e60 100644
> --- a/arch/powerpc/perf/hv-24x7.c
> +++ b/arch/powerpc/perf/hv-24x7.c
> @@ -1306,15 +1306,6 @@ static int h_24x7_event_init(struct perf_event *event)
> return -EINVAL;
> }
>
> - /* unsupported modes and filters */
> - if (event->attr.exclude_user ||
> - event->attr.exclude_kernel ||
> - event->attr.exclude_hv ||
> - event->attr.exclude_idle ||
> - event->attr.exclude_host ||
> - event->attr.exclude_guest)
> - return -EINVAL;
> -
> /* no branch sampling */
> if (has_branch_stack(event))
> return -EOPNOTSUPP;
> @@ -1577,6 +1568,7 @@ static struct pmu h_24x7_pmu = {
> .start_txn = h_24x7_event_start_txn,
> .commit_txn = h_24x7_event_commit_txn,
> .cancel_txn = h_24x7_event_cancel_txn,
> + .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
> };
>
> static int hv_24x7_init(void)
> diff --git a/arch/powerpc/perf/hv-gpci.c b/arch/powerpc/perf/hv-gpci.c
> index 43fabb3..735e77b 100644
> --- a/arch/powerpc/perf/hv-gpci.c
> +++ b/arch/powerpc/perf/hv-gpci.c
> @@ -232,15 +232,6 @@ static int h_gpci_event_init(struct perf_event *event)
> return -EINVAL;
> }
>
> - /* unsupported modes and filters */
> - if (event->attr.exclude_user ||
> - event->attr.exclude_kernel ||
> - event->attr.exclude_hv ||
> - event->attr.exclude_idle ||
> - event->attr.exclude_host ||
> - event->attr.exclude_guest)
> - return -EINVAL;
> -
> /* no branch sampling */
> if (has_branch_stack(event))
> return -EOPNOTSUPP;
> @@ -285,6 +276,7 @@ static struct pmu h_gpci_pmu = {
> .start = h_gpci_event_start,
> .stop = h_gpci_event_stop,
> .read = h_gpci_event_update,
> + .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
> };
>
> static int hv_gpci_init(void)
> diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
> index 1fafc32b..1dbb0ee 100644
> --- a/arch/powerpc/perf/imc-pmu.c
> +++ b/arch/powerpc/perf/imc-pmu.c
> @@ -473,15 +473,6 @@ static int nest_imc_event_init(struct perf_event *event)
> if (event->hw.sample_period)
> return -EINVAL;
>
> - /* unsupported modes and filters */
> - if (event->attr.exclude_user ||
> - event->attr.exclude_kernel ||
> - event->attr.exclude_hv ||
> - event->attr.exclude_idle ||
> - event->attr.exclude_host ||
> - event->attr.exclude_guest)
> - return -EINVAL;
> -
> if (event->cpu < 0)
> return -EINVAL;
>
> @@ -748,15 +739,6 @@ static int core_imc_event_init(struct perf_event *event)
> if (event->hw.sample_period)
> return -EINVAL;
>
> - /* unsupported modes and filters */
> - if (event->attr.exclude_user ||
> - event->attr.exclude_kernel ||
> - event->attr.exclude_hv ||
> - event->attr.exclude_idle ||
> - event->attr.exclude_host ||
> - event->attr.exclude_guest)
> - return -EINVAL;
> -
> if (event->cpu < 0)
> return -EINVAL;
>
> @@ -1069,6 +1051,7 @@ static int update_pmu_ops(struct imc_pmu *pmu)
> pmu->pmu.stop = imc_event_stop;
> pmu->pmu.read = imc_event_update;
> pmu->pmu.attr_groups = pmu->attr_groups;
> + pmu->pmu.capabilities = PERF_PMU_CAP_NO_EXCLUDE;
> pmu->attr_groups[IMC_FORMAT_ATTR] = &imc_format_group;
>
> switch (pmu->domain) {
> --
> 2.7.4
