[Mesa-dev] [PATCH 5/6] gallium: wire up server_wait_sync

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Fri, Apr 1, 2016 at 10:29 PM, Rob Clark <robdclark at gmail.com> wrote:
> From: Rob Clark <robclark at freedesktop.org>
>
> This will be needed for explicit synchronization with devices outside
> the gpu, ie. EGL_ANDROID_native_fence_sync.
>
> Signed-off-by: Rob Clark <robclark at freedesktop.org>
> ---
>  src/gallium/include/pipe/p_context.h  | 6 ++++++
>  src/gallium/state_trackers/dri/dri2.c | 6 +++++-
>  2 files changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
> index 02a946b..d617ec4 100644
> --- a/src/gallium/include/pipe/p_context.h
> +++ b/src/gallium/include/pipe/p_context.h
> @@ -481,6 +481,12 @@ struct pipe_context {
>                             uint64_t timeout);
>
>     /**
> +    * Insert commands to have GPU wait for fence to be signaled.
> +    */
> +   void (*fence_server_sync)(struct pipe_context *pipe,
> +                             struct pipe_fence_handle *fence);
> +
> +   /**
>      * Create a view on a texture to be used by a shader stage.
>      */
>     struct pipe_sampler_view * (*create_sampler_view)(struct pipe_context *ctx,
> diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
> index b66d885..6c8bb37 100644
> --- a/src/gallium/state_trackers/dri/dri2.c
> +++ b/src/gallium/state_trackers/dri/dri2.c
> @@ -1413,7 +1413,11 @@ dri2_client_wait_sync(__DRIcontext *_ctx, void *_fence, unsigned flags,
>  static void
>  dri2_server_wait_sync(__DRIcontext *_ctx, void *_fence, unsigned flags)
>  {
> -   /* AFAIK, no driver currently supports parallel context execution. */
> +   struct pipe_context *ctx = dri_context(_ctx)->st->pipe;
> +   struct dri2_fence *fence = (struct dri2_fence*)_fence;
> +
> +   if (ctx->fence_server_sync)
> +      ctx->fence_server_sync(ctx, fence->pipe_fence);
>  }
>
>  static __DRI2fenceExtension dri2FenceExtension = {
> --
> 2.5.5
>
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