The logic was reversed from what the hw actually exposed.
Fixes graphics corruption in certain harvest configurations.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Cc: stable at vger.kernel.org
---
drivers/gpu/drm/radeon/ni.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index ebe68dd..dab0081 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1088,12 +1088,12 @@ static void cayman_gpu_init(struct radeon_device *rdev)
if ((rdev->config.cayman.max_backends_per_se == 1) &&
(rdev->flags & RADEON_IS_IGP)) {
- if ((disabled_rb_mask & 3) == 1) {
- /* RB0 disabled, RB1 enabled */
- tmp = 0x11111111;
- } else {
+ if ((disabled_rb_mask & 3) == 2) {
/* RB1 disabled, RB0 enabled */
tmp = 0x00000000;
+ } else {
+ /* RB0 disabled, RB1 enabled */
+ tmp = 0x11111111;
}
} else {
tmp = gb_addr_config & NUM_PIPES_MASK;
--
1.8.3.1
