| commit | ed39fadd6df01095378e499fac3674883f16b853 | [log] [tgz] |
|---|---|---|
| author | Alex Deucher <alexander.deucher@amd.com> | Thu Jan 31 09:00:52 2013 -0500 |
| committer | Alex Deucher <alexander.deucher@amd.com> | Thu Jan 31 09:03:22 2013 -0500 |
| tree | 82e2bd57b1b961f69a5eae4f877e5afeb63b816d | |
| parent | f689e3acbd2e48cc4101e0af454193f81af4baaf [diff] |
drm/radeon/evergreen+: wait for the MC to settle after MC blackout Some chips seem to need a little delay after blacking out the MC before the requests actually stop. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=56139 https://bugs.freedesktop.org/show_bug.cgi?id=57567 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 2270867..a2d478e 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1349,6 +1349,8 @@ blackout &= ~BLACKOUT_MODE_MASK; WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1); } + /* wait for the MC to settle */ + udelay(100); } void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)