From: Marek Olšák <marek.olsak@xxxxxxx>
This fixes a bug which was causing rejections of valid GPU commands
from userspace.
Signed-off-by: Marek Olšák <marek.olsak@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/radeon/evergreen_cs.c | 5 ++++-
drivers/gpu/drm/radeon/r600_cs.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index eb8ac31..c7cac07 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -967,7 +967,10 @@ static int evergreen_cs_track_check(struct radeon_cs_parser *p)
if (track->cb_dirty) {
tmp = track->cb_target_mask;
for (i = 0; i < 8; i++) {
- if ((tmp >> (i * 4)) & 0xF) {
+ u32 format = G_028C70_FORMAT(track->cb_color_info[i]);
+
+ if (format != V_028C70_COLOR_INVALID &&
+ (tmp >> (i * 4)) & 0xF) {
/* at least one component is enabled */
if (track->cb_color_bo[i] == NULL) {
dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 5dceea6..56130bf 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -749,7 +749,10 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
}
for (i = 0; i < 8; i++) {
- if ((tmp >> (i * 4)) & 0xF) {
+ u32 format = G_0280A0_FORMAT(track->cb_color_info[i]);
+
+ if (format != V_0280A0_COLOR_INVALID &&
+ (tmp >> (i * 4)) & 0xF) {
/* at least one component is enabled */
if (track->cb_color_bo[i] == NULL) {
dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
--
1.8.3.2
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