Re: [Intel-gfx] [PATCH 1/4] drm/i915/selftests: Verify frequency scaling with RPS

2020-04-20 Thread Chris Wilson
Quoting Mika Kuoppala (2020-04-20 13:54:21) > Chris Wilson writes: > > > Quoting Mika Kuoppala (2020-04-20 11:54:38) > >> Further, intel_runtime_pm_get is missing. > > > > For what? We acquire the wakeref via the request on the engine. > > > > We don't talk to intel_runtime_pm directly,

Re: [Intel-gfx] [PATCH 1/4] drm/i915/selftests: Verify frequency scaling with RPS

2020-04-20 Thread Mika Kuoppala
Chris Wilson writes: > Quoting Mika Kuoppala (2020-04-20 11:54:38) >> Chris Wilson writes: >> >> > One of the core tenents of reclocking the GPU is that its throughput >> > scales with the clock frequency. We can observe this by incrementing a >> > loop counter on the GPU, and compare the

Re: [Intel-gfx] [PATCH 1/4] drm/i915/selftests: Verify frequency scaling with RPS

2020-04-20 Thread Chris Wilson
Quoting Mika Kuoppala (2020-04-20 11:54:38) > Chris Wilson writes: > > > One of the core tenents of reclocking the GPU is that its throughput > > scales with the clock frequency. We can observe this by incrementing a > > loop counter on the GPU, and compare the different execution rates at > >

Re: [Intel-gfx] [PATCH 1/4] drm/i915/selftests: Verify frequency scaling with RPS

2020-04-20 Thread Mika Kuoppala
Chris Wilson writes: > One of the core tenents of reclocking the GPU is that its throughput > scales with the clock frequency. We can observe this by incrementing a > loop counter on the GPU, and compare the different execution rates at > the notional RPS frequencies. > > Signed-off-by: Chris

[Intel-gfx] [PATCH 1/4] drm/i915/selftests: Verify frequency scaling with RPS

2020-04-20 Thread Chris Wilson
One of the core tenents of reclocking the GPU is that its throughput scales with the clock frequency. We can observe this by incrementing a loop counter on the GPU, and compare the different execution rates at the notional RPS frequencies. Signed-off-by: Chris Wilson ---