On 4/8/2021 9:40 AM, Peter Zijlstra wrote:
@@ -4330,7 +4347,7 @@ static int intel_pmu_check_period(struct perf_event
*event, u64 value)
static int intel_pmu_aux_output_match(struct perf_event *event)
{
- if (!x86_pmu.intel_cap.pebs_output_pt_available)
+ if
On 4/8/2021 1:00 PM, Peter Zijlstra wrote:
On Mon, Apr 05, 2021 at 08:10:46AM -0700, kan.li...@linux.intel.com wrote:
+#define is_hybrid()(!!x86_pmu.num_hybrid_pmus)
Given this is sprinkled all over the place, can you make this a
static_key_false +
On Mon, Apr 05, 2021 at 08:10:46AM -0700, kan.li...@linux.intel.com wrote:
> +#define is_hybrid() (!!x86_pmu.num_hybrid_pmus)
Given this is sprinkled all over the place, can you make this a
static_key_false + static_branch_unlikely() such that the hybrid case is
out-of-line?
On Mon, Apr 05, 2021 at 08:10:46AM -0700, kan.li...@linux.intel.com wrote:
> +static inline bool intel_pmu_has_cap(struct perf_event *event, int idx)
> +{
> + union perf_capabilities *intel_cap;
> +
> + intel_cap = is_hybrid() ? _pmu(event->pmu)->intel_cap :
> +
On Thu, Apr 08, 2021 at 03:40:56PM +0200, Peter Zijlstra wrote:
> On Mon, Apr 05, 2021 at 08:10:46AM -0700, kan.li...@linux.intel.com wrote:
> > +static inline bool intel_pmu_has_cap(struct perf_event *event, int idx)
> > +{
> > + union perf_capabilities *intel_cap;
> > +
> > + intel_cap =
From: Kan Liang
Some platforms, e.g. Alder Lake, have hybrid architecture. Although most
PMU capabilities are the same, there are still some unique PMU
capabilities for different hybrid PMUs. Perf should register a dedicated
pmu for each hybrid PMU.
Add a new struct x86_hybrid_pmu, which saves
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