Re: [PATCH 01/23] drm/i915: Fix rotation setup during plane HW readout

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On Thu, Mar 11, 2021 at 12:17:14AM +0200, Imre Deak wrote:
> The HW plane state is cleared and inited after we store the rotation to
> it, so store it instead to the uapi state to match what we do with all
> other plane state until intel_plane_copy_uapi_to_hw_state() is called.

Feels a bit backwards. Ideally I'd like the readout to go the other way.
But given how this code is atm this is consistent with the rest.

Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Looks like we could also nuke the
 intel_state->uapi.src = drm_plane_state_src(plane_state);
 intel_state->uapi.dst = drm_plane_state_dest(plane_state);
since intel_plane_copy_uapi_to_hw_state() also does that for us.

> 
> Rotation for initial FBs is not supported atm, but let's still fix the
> plane state setup here.
> 
> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 5bfc06c46e28..12b54e032bc1 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2468,11 +2468,11 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
>  	return;
>  
>  valid_fb:
> -	intel_state->hw.rotation = plane_config->rotation;
> +	plane_state->rotation = plane_config->rotation;
>  	intel_fill_fb_ggtt_view(&intel_state->view, fb,
> -				intel_state->hw.rotation);
> +				plane_state->rotation);
>  	intel_state->color_plane[0].stride =
> -		intel_fb_pitch(fb, 0, intel_state->hw.rotation);
> +		intel_fb_pitch(fb, 0, plane_state->rotation);
>  
>  	__i915_vma_pin(vma);
>  	intel_state->vma = i915_vma_get(vma);
> -- 
> 2.25.1
> 
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-- 
Ville Syrjälä
Intel
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