diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c index d0508719492e333ff9e7fb09c4821ce799deb726..00fe401868c4fb41417e1bf9a8595c9d21b07f3c 100644 --- a/drivers/gpu/drm/i915/i915_pmu.c +++ b/drivers/gpu/drm/i915/i915_pmu.c @@ -1080,6 +1080,17 @@ static void i915_pmu_unregister_cpuhp_state(struct i915_pmu *pmu) cpuhp_remove_multi_state(cpuhp_slot); } +static bool is_igp(struct drm_i915_private *i915) +{ + struct pci_dev *pdev = i915->drm.pdev; + + /* IGP is 0000:00:02.0 */ + return pci_domain_nr(pdev->bus) == 0 && + pdev->bus->number == 0 && + PCI_SLOT(pdev->devfn) == 2 && + PCI_FUNC(pdev->devfn) == 0; +} + void i915_pmu_register(struct drm_i915_private *i915) { struct i915_pmu *pmu = &i915->pmu; @@ -1110,10 +1121,19 @@ void i915_pmu_register(struct drm_i915_private *i915) hrtimer_init(&pmu->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); pmu->timer.function = i915_sample; - ret = perf_pmu_register(&pmu->base, "i915", -1); - if (ret) + if (!is_igp(i915)) + pmu->name = kasprintf(GFP_KERNEL, + "i915-%s", + dev_name(i915->drm.dev)); + else + pmu->name = "i915"; + if (!pmu->name) goto err; + ret = perf_pmu_register(&pmu->base, pmu->name, -1); + if (ret) + goto err_name; + ret = i915_pmu_register_cpuhp_state(pmu); if (ret) goto err_unreg; @@ -1122,6 +1142,9 @@ void i915_pmu_register(struct drm_i915_private *i915) err_unreg: perf_pmu_unregister(&pmu->base); +err_name: + if (!is_igp(i915)) + kfree(pmu->name); err: pmu->base.event_init = NULL; free_event_attributes(pmu); @@ -1143,5 +1166,7 @@ void i915_pmu_unregister(struct drm_i915_private *i915) perf_pmu_unregister(&pmu->base); pmu->base.event_init = NULL; + if (!is_igp(i915)) + kfree(pmu->name); free_event_attributes(pmu); } diff --git a/drivers/gpu/drm/i915/i915_pmu.h b/drivers/gpu/drm/i915/i915_pmu.h index 067dbbf3bdff04ac7bce6b6b6434193d410db1f0..bf52e3983631b7278d4930b5c752190e01954e56 100644 --- a/drivers/gpu/drm/i915/i915_pmu.h +++ b/drivers/gpu/drm/i915/i915_pmu.h @@ -46,6 +46,10 @@ struct i915_pmu { * @base: PMU base. */ struct pmu base; + /** + * @name: Name as registered with perf core. + */ + const char *name; /** * @lock: Lock protecting enable mask and ref count handling. */