Re: [Intel-gfx] [PATCH v2 1/6] drm/i915/guc: Fix a bug in GuC status check

2015-09-28 Thread Daniel Vetter
On Thu, Sep 24, 2015 at 10:29:18AM +0530, Kamble, Sagar A wrote: > Reviewed-by: Sagar Arun Kamble > > On 9/23/2015 2:18 AM, yu@intel.com wrote: > >From: Alex Dai > > > >Bit 16 of GuC status indicates resuming from RC6. The LAPIC_DONE > >status is a reliable readiness flag only when resuming

Re: [Intel-gfx] [PATCH v2 1/6] drm/i915/guc: Fix a bug in GuC status check

2015-09-23 Thread Kamble, Sagar A
Reviewed-by: Sagar Arun Kamble On 9/23/2015 2:18 AM, yu@intel.com wrote: From: Alex Dai Bit 16 of GuC status indicates resuming from RC6. The LAPIC_DONE status is a reliable readiness flag only when resuming from RC6. This fix a racing issue that allocation of doorbell fails whilst GuC in

[Intel-gfx] [PATCH v2 1/6] drm/i915/guc: Fix a bug in GuC status check

2015-09-22 Thread yu . dai
From: Alex Dai Bit 16 of GuC status indicates resuming from RC6. The LAPIC_DONE status is a reliable readiness flag only when resuming from RC6. This fix a racing issue that allocation of doorbell fails whilst GuC init is not finished. Signed-off-by: Alex Dai --- drivers/gpu/drm/i915/i915_guc_