OSDN Git Service
(root)
/
android-x86
/
kernel.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
7b9d2fe
)
drm/v3d: Invalidate the caches from the outside in.
author
Eric Anholt
<eric@anholt.net>
Mon, 3 Dec 2018 22:24:38 +0000
(14:24 -0800)
committer
Eric Anholt
<eric@anholt.net>
Fri, 7 Dec 2018 18:56:51 +0000
(10:56 -0800)
This would be a fairly obscure race, but let's make sure we don't ever
lose it.
Signed-off-by: Eric Anholt <eric@anholt.net>
Link:
https://patchwork.freedesktop.org/patch/msgid/20181203222438.25417-6-eric@anholt.net
Reviewed-by: Dave Emett <david.emett@broadcom.com>
drivers/gpu/drm/v3d/v3d_gem.c
patch
|
blob
|
history
diff --git
a/drivers/gpu/drm/v3d/v3d_gem.c
b/drivers/gpu/drm/v3d/v3d_gem.c
index
06525ea
..
803f314
100644
(file)
--- a/
drivers/gpu/drm/v3d/v3d_gem.c
+++ b/
drivers/gpu/drm/v3d/v3d_gem.c
@@
-171,11
+171,15
@@
v3d_invalidate_slices(struct v3d_dev *v3d, int core)
void
v3d_invalidate_caches(struct v3d_dev *v3d)
{
+ /* Invalidate the caches from the outside in. That way if
+ * another CL's concurrent use of nearby memory were to pull
+ * an invalidated cacheline back in, we wouldn't leave stale
+ * data in the inner cache.
+ */
v3d_flush_l3(v3d);
-
v3d_invalidate_l2c(v3d, 0);
- v3d_invalidate_slices(v3d, 0);
v3d_flush_l2t(v3d, 0);
+ v3d_invalidate_slices(v3d, 0);
}
static void