[ 35/49] drm/radeon: avoid UVD corruptions on AGP cards

Greg Kroah-Hartman
2013-09-29T19:28:35Z

From: Christian König <christian.koenig@amd.com>

commit 4f66c59922cbcda14c9e103e6c7f4ee616360d43 upstream.

Putting everything into VRAM seems to help.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/radeon/radeon_cs.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -80,9 +80,11 @@ static int radeon_cs_parser_relocs(struc
p->relocs[i].lobj.bo = p->relocs[i].robj;
p->relocs[i].lobj.written = !!r->write_domain;

- /* the first reloc of an UVD job is the
- msg and that must be in VRAM */
- if (p->ring == R600_RING_TYPE_UVD_INDEX && i == 0) {
+ /* the first reloc of an UVD job is the msg and that must be in
+ VRAM, also but everything into VRAM on AGP cards to avoid
+ image corruptions */
+ if (p->ring == R600_RING_TYPE_UVD_INDEX &&
+ (i == 0 || p->rdev->flags & RADEON_IS_AGP)) {
/* TODO: is this still needed for NI+ ? */
p->relocs[i].lobj.domain =
RADEON_GEM_DOMAIN_VRAM;