From: Alyssa Rosenzweig <alyssa@collabora.com>
Date: Tue, 8 Jun 2021 15:33:52 +0000 (-0400)
Subject: panfrost: Flush before compute jobs
X-Git-Tag: upstream/21.2.3~2122
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3b9f1f39d166acb70ea5d516ad973b31e471bd34;p=platform%2Fupstream%2Fmesa.git

panfrost: Flush before compute jobs

Suboptimal but fixes KHR-GLES31.core.compute_shader.pipeline-post-xfb,
which is stubbornly still broken with memory barriers implemented and
cache flush jobs inserted. More investigation needed but probably not
right now.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11123>
---

diff --git a/src/gallium/drivers/panfrost/pan_compute.c b/src/gallium/drivers/panfrost/pan_compute.c
index 2a1c02d..6dfad96 100644
--- a/src/gallium/drivers/panfrost/pan_compute.c
+++ b/src/gallium/drivers/panfrost/pan_compute.c
@@ -101,6 +101,11 @@ panfrost_launch_grid(struct pipe_context *pipe,
 {
         struct panfrost_context *ctx = pan_context(pipe);
         struct panfrost_device *dev = pan_device(pipe->screen);
+
+        /* XXX - shouldn't be necessary with working memory barriers. Affected
+         * test: KHR-GLES31.core.compute_shader.pipeline-post-xfb */
+        panfrost_flush_all_batches(ctx);
+
         struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx);
 
         struct panfrost_shader_state *cs =