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authorDave Airlie <airlied@redhat.com>2020-03-11 07:27:21 +1000
committerDave Airlie <airlied@redhat.com>2020-03-11 07:27:21 +1000
commitd3bd37f587b4438d47751d0f1d5aaae3d39bd416 (patch)
tree9414a8fd1ca74c47fe1a3966e0a22469ac0b73a3 /arch/powerpc/mm/mem.c
parent60347451ddb0646c1a9cc5b9581e5bcf648ad1aa (diff)
parent2c523b344dfa65a3738e7039832044aa133c75fb (diff)
downloadlinux-d3bd37f587b4438d47751d0f1d5aaae3d39bd416.tar.bz2
Merge v5.6-rc5 into drm-next
Requested my mripard for some misc patches that need this as a base. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index ef7b1119b2e2..1c07d5a3f543 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -373,7 +373,9 @@ static inline bool flush_coherent_icache(unsigned long addr)
*/
if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) {
mb(); /* sync */
+ allow_read_from_user((const void __user *)addr, L1_CACHE_BYTES);
icbi((void *)addr);
+ prevent_read_from_user((const void __user *)addr, L1_CACHE_BYTES);
mb(); /* sync */
isync();
return true;