From: Rob Clark <robdclark@chromium.org>
Date: Tue, 19 May 2020 15:27:04 +0000 (-0700)
Subject: freedreno/drm: disallow exported buffers in bo cache
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ceab349483cb43b0a62895a3657049d4045ad324;p=mesa.git

freedreno/drm: disallow exported buffers in bo cache

Otherwise we can MADVISE(WONTNEED) a bo that someone else is still
using.  We already handled that in the dma-buf and flink-name export
paths.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5204>
---

diff --git a/src/freedreno/drm/freedreno_bo.c b/src/freedreno/drm/freedreno_bo.c
index b6d5cdd9bec..862465cfe43 100644
--- a/src/freedreno/drm/freedreno_bo.c
+++ b/src/freedreno/drm/freedreno_bo.c
@@ -318,6 +318,7 @@ int fd_bo_get_name(struct fd_bo *bo, uint32_t *name)
 
 uint32_t fd_bo_handle(struct fd_bo *bo)
 {
+	bo->bo_reuse = NO_CACHE;
 	return bo->handle;
 }