[Intel-gfx] [PATCH v4 5/8] drm/i915/skl+: reset y_plane ddb structure also during calculation

[Paulo Zanoni]

Em Qui, 2016-10-13 às 16:28 +0530, Kumar, Mahesh escreveu:
> From: Mahesh Kumar <mahesh1.kumar at intel.com>
> 
> Current code clears only plane ddb allocation if total ddb allocated
> to
> pipe in zero. y_plane ddb still contains old value, clear that as
> well.
> 
> Signed-off-by: Mahesh Kumar <mahesh1.kumar at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_pm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c
> b/drivers/gpu/drm/i915/intel_pm.c
> index 5b8f715..a668204 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3381,6 +3381,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state
> *cstate,
>  	alloc_size = skl_ddb_entry_size(alloc);
>  	if (alloc_size == 0) {
>  		memset(ddb->plane[pipe], 0, sizeof(ddb-
> >plane[pipe]));
> +		memset(ddb->y_plane[pipe], 0, sizeof(ddb-
> >y_plane[pipe]));

With the latest code we can just remove both memset() calls.

>  		return 0;
>  	}
>