[Mesa-dev] [PATCH v3 08/17] panfrost: Add a panfrost_flush_all_batches() helper

Alyssa Rosenzweig alyssa at rosenzweig.io
Fri Sep 20 21:03:35 UTC 2019


(Still r-b)

On Wed, Sep 18, 2019 at 03:24:30PM +0200, Boris Brezillon wrote:
> And use it in panfrost_flush() to flush all batches, and not only the
> one currently bound to the context.
> 
> We also replace all internal calls to panfrost_flush() by
> panfrost_flush_all_batches() ones.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
> Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
> ---
> Changes in v3:
> * Add missing blank line
> * Collect R-b
> ---
>  src/gallium/drivers/panfrost/pan_compute.c  |  2 +-
>  src/gallium/drivers/panfrost/pan_context.c  | 23 +++++++----
>  src/gallium/drivers/panfrost/pan_job.c      | 46 ++++++++++++++++++++-
>  src/gallium/drivers/panfrost/pan_job.h      |  2 +-
>  src/gallium/drivers/panfrost/pan_resource.c |  6 +--
>  5 files changed, 64 insertions(+), 15 deletions(-)
> 
> diff --git a/src/gallium/drivers/panfrost/pan_compute.c b/src/gallium/drivers/panfrost/pan_compute.c
> index 4639c1b03c38..036dffbb17be 100644
> --- a/src/gallium/drivers/panfrost/pan_compute.c
> +++ b/src/gallium/drivers/panfrost/pan_compute.c
> @@ -133,7 +133,7 @@ panfrost_launch_grid(struct pipe_context *pipe,
>          /* Queue the job */
>          panfrost_scoreboard_queue_compute_job(batch, transfer);
>  
> -        panfrost_flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME);
> +        panfrost_flush_all_batches(ctx, true);
>  }
>  
>  void
> diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
> index aad69e3f9991..861b4b621602 100644
> --- a/src/gallium/drivers/panfrost/pan_context.c
> +++ b/src/gallium/drivers/panfrost/pan_context.c
> @@ -1348,7 +1348,6 @@ panfrost_flush(
>          unsigned flags)
>  {
>          struct panfrost_context *ctx = pan_context(pipe);
> -        struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx);
>          struct util_dynarray fences;
>  
>          /* We must collect the fences before the flush is done, otherwise we'll
> @@ -1356,13 +1355,18 @@ panfrost_flush(
>           */
>          if (fence) {
>                  util_dynarray_init(&fences, NULL);
> -                panfrost_batch_fence_reference(batch->out_sync);
> -                util_dynarray_append(&fences, struct panfrost_batch_fence *,
> -                                     batch->out_sync);
> +                hash_table_foreach(ctx->batches, hentry) {
> +                        struct panfrost_batch *batch = hentry->data;
> +
> +                        panfrost_batch_fence_reference(batch->out_sync);
> +                        util_dynarray_append(&fences,
> +                                             struct panfrost_batch_fence *,
> +                                             batch->out_sync);
> +                }
>          }
>  
> -        /* Submit the frame itself */
> -        panfrost_batch_submit(batch);
> +        /* Submit all pending jobs */
> +        panfrost_flush_all_batches(ctx, false);
>  
>          if (fence) {
>                  struct panfrost_fence *f = panfrost_fence_create(ctx, &fences);
> @@ -2321,7 +2325,7 @@ panfrost_set_framebuffer_state(struct pipe_context *pctx,
>          }
>  
>          if (!is_scanout || has_draws)
> -                panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>          else
>                  assert(!ctx->payloads[PIPE_SHADER_VERTEX].postfix.framebuffer &&
>                         !ctx->payloads[PIPE_SHADER_FRAGMENT].postfix.framebuffer);
> @@ -2553,6 +2557,7 @@ panfrost_get_query_result(struct pipe_context *pipe,
>                            union pipe_query_result *vresult)
>  {
>          struct panfrost_query *query = (struct panfrost_query *) q;
> +        struct panfrost_context *ctx = pan_context(pipe);
>  
>  
>          switch (query->type) {
> @@ -2560,7 +2565,7 @@ panfrost_get_query_result(struct pipe_context *pipe,
>          case PIPE_QUERY_OCCLUSION_PREDICATE:
>          case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
>                  /* Flush first */
> -                panfrost_flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>  
>                  /* Read back the query results */
>                  unsigned *result = (unsigned *) query->transfer.cpu;
> @@ -2576,7 +2581,7 @@ panfrost_get_query_result(struct pipe_context *pipe,
>  
>          case PIPE_QUERY_PRIMITIVES_GENERATED:
>          case PIPE_QUERY_PRIMITIVES_EMITTED:
> -                panfrost_flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>                  vresult->u64 = query->end - query->start;
>                  break;
>  
> diff --git a/src/gallium/drivers/panfrost/pan_job.c b/src/gallium/drivers/panfrost/pan_job.c
> index 211e48bafd4e..3ccf4bb6b3e9 100644
> --- a/src/gallium/drivers/panfrost/pan_job.c
> +++ b/src/gallium/drivers/panfrost/pan_job.c
> @@ -856,7 +856,7 @@ panfrost_batch_submit_jobs(struct panfrost_batch *batch)
>          return ret;
>  }
>  
> -void
> +static void
>  panfrost_batch_submit(struct panfrost_batch *batch)
>  {
>          assert(batch);
> @@ -904,8 +904,52 @@ out:
>  
>          panfrost_free_batch(batch);
>  
> +}
> +
> +void
> +panfrost_flush_all_batches(struct panfrost_context *ctx, bool wait)
> +{
> +        struct util_dynarray fences, syncobjs;
> +
> +        if (wait) {
> +                util_dynarray_init(&fences, NULL);
> +                util_dynarray_init(&syncobjs, NULL);
> +        }
> +
> +        hash_table_foreach(ctx->batches, hentry) {
> +                struct panfrost_batch *batch = hentry->data;
> +
> +                assert(batch);
> +
> +                if (wait) {
> +                        panfrost_batch_fence_reference(batch->out_sync);
> +                        util_dynarray_append(&fences, struct panfrost_batch_fence *,
> +                                             batch->out_sync);
> +                        util_dynarray_append(&syncobjs, uint32_t,
> +                                             batch->out_sync->syncobj);
> +                }
> +
> +                panfrost_batch_submit(batch);
> +        }
> +
> +        assert(!ctx->batches->entries);
> +
>          /* Collect batch fences before returning */
>          panfrost_gc_fences(ctx);
> +
> +        if (!wait)
> +                return;
> +
> +        drmSyncobjWait(pan_screen(ctx->base.screen)->fd,
> +                       util_dynarray_begin(&syncobjs),
> +                       util_dynarray_num_elements(&syncobjs, uint32_t),
> +                       INT64_MAX, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL, NULL);
> +
> +        util_dynarray_foreach(&fences, struct panfrost_batch_fence *, fence)
> +                panfrost_batch_fence_unreference(*fence);
> +
> +        util_dynarray_fini(&fences);
> +        util_dynarray_fini(&syncobjs);
>  }
>  
>  void
> diff --git a/src/gallium/drivers/panfrost/pan_job.h b/src/gallium/drivers/panfrost/pan_job.h
> index 63813dff652d..e95e156a40f8 100644
> --- a/src/gallium/drivers/panfrost/pan_job.h
> +++ b/src/gallium/drivers/panfrost/pan_job.h
> @@ -183,7 +183,7 @@ panfrost_batch_create_bo(struct panfrost_batch *batch, size_t size,
>                           uint32_t create_flags, uint32_t access_flags);
>  
>  void
> -panfrost_batch_submit(struct panfrost_batch *batch);
> +panfrost_flush_all_batches(struct panfrost_context *ctx, bool wait);
>  
>  void
>  panfrost_batch_set_requirements(struct panfrost_batch *batch);
> diff --git a/src/gallium/drivers/panfrost/pan_resource.c b/src/gallium/drivers/panfrost/pan_resource.c
> index 363a330c4fd0..1f7605adcd5d 100644
> --- a/src/gallium/drivers/panfrost/pan_resource.c
> +++ b/src/gallium/drivers/panfrost/pan_resource.c
> @@ -580,7 +580,7 @@ panfrost_transfer_map(struct pipe_context *pctx,
>  
>          if (is_bound && (usage & PIPE_TRANSFER_READ)) {
>                  assert(level == 0);
> -                panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>          }
>  
>          /* TODO: Respect usage flags */
> @@ -752,7 +752,7 @@ panfrost_generate_mipmap(
>          bool has_draws = batch->last_job.gpu;
>  
>          if (has_draws)
> -                panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>  
>          /* We've flushed the original buffer if needed, now trigger a blit */
>  
> @@ -766,7 +766,7 @@ panfrost_generate_mipmap(
>           * the state tracker deal with it. */
>  
>          if (blit_res)
> -                panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
> +                panfrost_flush_all_batches(ctx, true);
>  
>          return blit_res;
>  }
> -- 
> 2.21.0


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