[Intel-gfx] [PATCH 1/2] drm/i915: Document that we are implementing WaDisableBackToBackFlipFix

[Paulo Zanoni]

2012/10/4 Damien Lespiau <damien.lespiau at gmail.com>:
> From: Damien Lespiau <damien.lespiau at intel.com>
>
> For the next person that checks these kind of things, without having to
> dig up the register definition.
>
> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>

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

> ---
>  drivers/gpu/drm/i915/intel_pm.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 62fe848..3d219ec 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3541,6 +3541,7 @@ static void ivybridge_init_clock_gating(struct drm_device *dev)
>         I915_WRITE(_3D_CHICKEN3,
>                    _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
>
> +       /* WaDisableBackToBackFlipFix */
>         I915_WRITE(IVB_CHICKEN3,
>                    CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
>                    CHICKEN3_DGMG_DONE_FIX_DISABLE);
> @@ -3621,6 +3622,7 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
>         I915_WRITE(_3D_CHICKEN3,
>                    _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
>
> +       /* WaDisableBackToBackFlipFix */
>         I915_WRITE(IVB_CHICKEN3,
>                    CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
>                    CHICKEN3_DGMG_DONE_FIX_DISABLE);
> --
> 1.7.7.5
>
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-- 
Paulo Zanoni