drm/radeon: fix UVD 256MB check

Otherwise the kernel might reject our decoding requests.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 373d088..b9c0529 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -473,7 +473,7 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
                return -EINVAL;
        }
 
-       if ((start >> 28) != (end >> 28)) {
+       if ((start >> 28) != ((end - 1) >> 28)) {
                DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
                          start, end);
                return -EINVAL;