From: Tvrtko Ursulin <[email protected]> We use PCI device path in the registered PMU name in order to distinguish between multiple GPUs. But since tools/perf reserves a special meaning to dash and colon characters we need to transliterate them to something else. We choose an underscore.
v2: * Use strreplace. (Chris) * Dashes are not good either. (Chris) Signed-off-by: Tvrtko Ursulin <[email protected]> Reported-by: Dmitry Rogozhkin <[email protected]> Fixes: 05488673a4d4 ("drm/i915/pmu: Support multiple GPUs") Cc: Chris Wilson <[email protected]> Cc: Michal Wajdeczko <[email protected]> Cc: Andi Kleen <[email protected]> --- drivers/gpu/drm/i915/i915_pmu.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c index f3ef6700a5f2..28a82c849bac 100644 --- a/drivers/gpu/drm/i915/i915_pmu.c +++ b/drivers/gpu/drm/i915/i915_pmu.c @@ -1117,12 +1117,17 @@ void i915_pmu_register(struct drm_i915_private *i915) hrtimer_init(&pmu->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); pmu->timer.function = i915_sample; - if (!is_igp(i915)) + if (!is_igp(i915)) { pmu->name = kasprintf(GFP_KERNEL, - "i915-%s", + "i915_%s", dev_name(i915->drm.dev)); - else + if (pmu->name) { + /* tools/perf reserves colons as special. */ + strreplace((char *)pmu->name, ':', '_'); + } + } else { pmu->name = "i915"; + } if (!pmu->name) goto err; -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
