From: Christian K?nig <christian.koe...@amd.com>
Semaphore values have 64 bits, not 32. This fixes a very subtle bug
that disables synchronization when the upper 32bits wasn't zero.
Signed-off-by: Christian K?nig <christian.koenig at amd.com>
Cc: stable at vger.kernel.org
---
drivers/gpu/drm/radeon/radeon_semaphore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c
b/drivers/gpu/drm/radeon/radeon_semaphore.c
index 56d9fd6..abd6753 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -34,7 +34,7 @@
int radeon_semaphore_create(struct radeon_device *rdev,
struct radeon_semaphore **semaphore)
{
- uint32_t *cpu_addr;
+ uint64_t *cpu_addr;
int i, r;
*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);
--
1.9.1
