drm/radeon: always program the MC on startup
commit 6fab3febf6d949b0a12b1e4e73db38e4a177a79e upstream.
For r6xx+ asics. This mirrors the behavior of pre-r6xx
asics. We need to program the MC even if something
else in startup() fails. Failure to do so results in
an unusable GPU.
Based on a fix from: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[wml: Backported to 3.4:
- adjust context
- drop changes to cik.c]
Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index c22b5e7..e710073 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3834,6 +3834,8 @@
struct radeon_ring *ring;
int r;
+ si_mc_program(rdev);
+
if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw ||
!rdev->rlc_fw || !rdev->mc_fw) {
r = si_init_microcode(rdev);
@@ -3853,7 +3855,6 @@
if (r)
return r;
- si_mc_program(rdev);
r = si_pcie_gart_enable(rdev);
if (r)
return r;