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authorMarek Olšák <marek.olsak@amd.com>2014-05-27 02:56:36 +0200
committerChristian König <christian.koenig@amd.com>2014-05-30 14:21:49 +0200
commitec65da385d46f63740c1c9230b891a6dcbd64c71 (patch)
tree96256c8ba0553f8486f7ad7b1d672d63a77ba25a
parent60a445405a1731bac2279eab354173c9c3156747 (diff)
downloadlinux-ec65da385d46f63740c1c9230b891a6dcbd64c71.tar.gz
drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission
It hangs the hardware. Signed-off-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org
-rw-r--r--drivers/gpu/drm/radeon/radeon_cs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 4b6f5b82415..41ecf8a6061 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -152,6 +152,12 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
uint32_t domain = r->write_domain ?
r->write_domain : r->read_domains;
+ if (domain & RADEON_GEM_DOMAIN_CPU) {
+ DRM_ERROR("RADEON_GEM_DOMAIN_CPU is not valid "
+ "for command submission\n");
+ return -EINVAL;
+ }
+
p->relocs[i].domain = domain;
if (domain == RADEON_GEM_DOMAIN_VRAM)
domain |= RADEON_GEM_DOMAIN_GTT;