[Intel-gfx] [PATCH] drm/i915: add missing condition for committing planes on crtc

[Lionel Landwerlin]

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On 08/04/16 17:30, Lionel Landwerlin wrote:
> We are currently missing the color management update condition to
> commit planes on crtc.
>
> Fixes: 20a34e78f0d7 (drm/i915: Update color management during vblank evasion.)
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
> ---
>   drivers/gpu/drm/i915/intel_display.c | 12 +++++++++---
>   1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index feb7028..670b2ad 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -13480,6 +13480,13 @@ static bool needs_vblank_wait(struct intel_crtc_state *crtc_state)
>   	return false;
>   }
>   
> +static bool needs_commit_planes_on_crtc(struct drm_crtc_state *crtc_state)
> +{
> +	return (crtc_state->planes_changed ||
> +		crtc_state->color_mgmt_changed ||
> +		to_intel_crtc_state(crtc_state)->update_pipe);
> +}
> +
>   /**
>    * intel_atomic_commit - commit validated state object
>    * @dev: DRM device
> @@ -13583,7 +13590,6 @@ static int intel_atomic_commit(struct drm_device *dev,
>   		bool modeset = needs_modeset(crtc->state);
>   		struct intel_crtc_state *pipe_config =
>   			to_intel_crtc_state(crtc->state);
> -		bool update_pipe = !modeset && pipe_config->update_pipe;
>   
>   		if (modeset && crtc->state->active) {
>   			update_scanline_offset(to_intel_crtc(crtc));
> @@ -13597,8 +13603,8 @@ static int intel_atomic_commit(struct drm_device *dev,
>   		    drm_atomic_get_existing_plane_state(state, crtc->primary))
>   			intel_fbc_enable(intel_crtc);
>   
> -		if (crtc->state->active &&
> -		    (crtc->state->planes_changed || update_pipe))
> +		if (crtc->state->active && !modeset &&
> +		    needs_commit_planes_on_crtc(crtc->state))
>   			drm_atomic_helper_commit_planes_on_crtc(old_crtc_state);
>   
>   		if (pipe_config->base.active && needs_vblank_wait(pipe_config))