Re: [Intel-gfx] [PATCH 2/3] drm/i915/mtl: Add a PMU counter for total active ticks

2023-09-27 Thread Umesh Nerlige Ramappa
On Mon, Sep 25, 2023 at 09:40:46AM +0100, Tvrtko Ursulin wrote: On 22/09/2023 23:25, john.c.harri...@intel.com wrote: From: Umesh Nerlige Ramappa Current engine busyness interface exposed by GuC has a few issues: - The busyness of active engine is calculated using 2 values provided by GuC

Re: [Intel-gfx] [PATCH 2/3] drm/i915/mtl: Add a PMU counter for total active ticks

2023-09-25 Thread Tvrtko Ursulin
On 22/09/2023 23:25, john.c.harri...@intel.com wrote: From: Umesh Nerlige Ramappa Current engine busyness interface exposed by GuC has a few issues: - The busyness of active engine is calculated using 2 values provided by GuC and is prone to race between CPU reading those values and GuC