diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 08:58:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:31:15 -0400 |
| commit | e5903d399a7b0e5c14673c1206f4aeec2859c730 (patch) | |
| tree | 51c6167021389dc73657bc58ef851cea3417e662 /drivers/gpu/drm/radeon/rv770.c | |
| parent | f30df435ac6136787e65646881e62f12df2d71f6 (diff) | |
drm/radeon: fix init ordering for r600+
The vram scratch buffer needs to be initialized
before the mc is programmed otherwise we program
0 as the GPU address of the default GPU fault
page. In most cases we put vram at zero anyway and
reserve a page for the legacy vga buffer so in practice
this shouldn't cause any problems, but better to make
it correct.
Was changed in:
6fab3febf6d949b0a12b1e4e73db38e4a177a79e
Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rv770.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index b811296462a3..9f5846743c9e 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -1658,6 +1658,11 @@ static int rv770_startup(struct radeon_device *rdev) /* enable pcie gen2 link */ rv770_pcie_gen2_enable(rdev); + /* scratch needs to be initialized before MC */ + r = r600_vram_scratch_init(rdev); + if (r) + return r; + rv770_mc_program(rdev); if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) { @@ -1668,10 +1673,6 @@ static int rv770_startup(struct radeon_device *rdev) } } - r = r600_vram_scratch_init(rdev); - if (r) - return r; - if (rdev->flags & RADEON_IS_AGP) { rv770_agp_enable(rdev); } else { |