[Intel-gfx] [PATCH 14/25] drm/tidss: Annotate dma-fence critical section in commit path

[Jyri Sarha]

On 07/07/2020 23:12, Daniel Vetter wrote:
> Ends right after hw_done(), totally standard case.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Jyri Sarha <jsarha at ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen at ti.com>

Acked-by: Jyri Sarha <jsarha at ti.com>

> ---
>  drivers/gpu/drm/tidss/tidss_kms.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index b6e61d6cf60f..556bc801b77c 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -4,6 +4,8 @@
>   * Author: Tomi Valkeinen <tomi.valkeinen at ti.com>
>   */
>  
> +#include <linux/dma-fence.h>
> +
>  #include <drm/drm_atomic.h>
>  #include <drm/drm_atomic_helper.h>
>  #include <drm/drm_bridge.h>
> @@ -26,6 +28,7 @@ static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
>  {
>  	struct drm_device *ddev = old_state->dev;
>  	struct tidss_device *tidss = to_tidss(ddev);
> +	bool fence_cookie = dma_fence_begin_signalling();
>  
>  	dev_dbg(ddev->dev, "%s\n", __func__);
>  
> @@ -36,6 +39,7 @@ static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
>  	drm_atomic_helper_commit_modeset_enables(ddev, old_state);
>  
>  	drm_atomic_helper_commit_hw_done(old_state);
> +	dma_fence_end_signalling(fence_cookie);
>  	drm_atomic_helper_wait_for_flip_done(ddev, old_state);
>  
>  	drm_atomic_helper_cleanup_planes(ddev, old_state);
> 


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