diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0498-drm-v3d-Invalidate-the-caches-from-the-outside-in.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0498-drm-v3d-Invalidate-the-caches-from-the-outside-in.patch | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0498-drm-v3d-Invalidate-the-caches-from-the-outside-in.patch b/target/linux/bcm27xx/patches-4.19/950-0498-drm-v3d-Invalidate-the-caches-from-the-outside-in.patch deleted file mode 100644 index 7682ab677e..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0498-drm-v3d-Invalidate-the-caches-from-the-outside-in.patch +++ /dev/null @@ -1,36 +0,0 @@ -From 514653cd51ff6bc14268dc0f98ebb37daa8f0e88 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Mon, 3 Dec 2018 14:24:38 -0800 -Subject: [PATCH] drm/v3d: Invalidate the caches from the outside in. - -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> -(cherry picked from commit aa5beec32e8b78bfcf621e3c3daebfb1644b6365) ---- - drivers/gpu/drm/v3d/v3d_gem.c | 8 ++++++-- - 1 file changed, 6 insertions(+), 2 deletions(-) - ---- 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 *v3 - 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 |