[Intel-gfx] [PATCH v2 41/71] drm/i915/chv: Add some workaround notes

[Paulo Zanoni]

2014-04-28 8:31 GMT-03:00  <ville.syrjala at linux.intel.com>:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> We implement the following workarounds:
> * WaDisableAsyncFlipPerfMode:chv
> * WaProgramMiArbOnOffAroundMiSetContext:chv
>
> v2: Drop WaDisableSemaphoreAndSyncFlipWait note

Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_context.c | 2 +-
>  drivers/gpu/drm/i915/intel_ringbuffer.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
> index 30b355a..37dc36d 100644
> --- a/drivers/gpu/drm/i915/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/i915_gem_context.c
> @@ -614,7 +614,7 @@ mi_set_context(struct intel_ring_buffer *ring,
>         if (ret)
>                 return ret;
>
> -       /* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw,bdw */
> +       /* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw,bdw,chv */
>         if (INTEL_INFO(ring->dev)->gen >= 7)
>                 intel_ring_emit(ring, MI_ARB_ON_OFF | MI_ARB_DISABLE);
>         else
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index eb3dd26..b025a51 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -599,7 +599,7 @@ static int init_render_ring(struct intel_ring_buffer *ring)
>          * to use MI_WAIT_FOR_EVENT within the CS. It should already be
>          * programmed to '1' on all products.
>          *
> -        * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv,bdw
> +        * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv,bdw,chv
>          */
>         if (INTEL_INFO(dev)->gen >= 6)
>                 I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE));
> --
> 1.8.3.2
>



-- 
Paulo Zanoni