Re: [PATCH 1/5] drm/fb-helper: Set damage-clip area in helper

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On Thu, Nov 10, 2022 at 02:55:15PM +0100, Thomas Zimmermann wrote:
> Set the damage area in the new helper drm_fb_helper_add_damage_clip().
> It can now be updated without scheduling the damage worker. This change
> will help to remove the damage worker entirely. No functional changes.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

> ---
>  drivers/gpu/drm/drm_fb_helper.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index e0384f967c0b3..178615565760e 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -576,8 +576,8 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
>  }
>  EXPORT_SYMBOL(drm_fb_helper_fini);
>  
> -static void drm_fb_helper_damage(struct drm_fb_helper *helper, u32 x, u32 y,
> -				 u32 width, u32 height)
> +static void drm_fb_helper_add_damage_clip(struct drm_fb_helper *helper, u32 x, u32 y,
> +					  u32 width, u32 height)
>  {
>  	struct drm_clip_rect *clip = &helper->damage_clip;
>  	unsigned long flags;
> @@ -588,6 +588,12 @@ static void drm_fb_helper_damage(struct drm_fb_helper *helper, u32 x, u32 y,
>  	clip->x2 = max_t(u32, clip->x2, x + width);
>  	clip->y2 = max_t(u32, clip->y2, y + height);
>  	spin_unlock_irqrestore(&helper->damage_lock, flags);
> +}
> +
> +static void drm_fb_helper_damage(struct drm_fb_helper *helper, u32 x, u32 y,
> +				 u32 width, u32 height)
> +{
> +	drm_fb_helper_add_damage_clip(helper, x, y, width, height);
>  
>  	schedule_work(&helper->damage_work);
>  }
> -- 
> 2.38.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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