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authorAlex Deucher <alexdeucher@gmail.com>2010-12-20 12:35:04 -0500
committerDave Airlie <airlied@redhat.com>2010-12-21 12:53:05 +1000
commit86f5c9edbb3bac37cc8cee6528a929005ba72aad (patch)
treeb804c064969e5e8a57bff48e8e9985d92e593aa1 /drivers
parent9f0c4f9c2f835eee1bbb93f96bf9483d56f1892b (diff)
drm/radeon/kms/evergreen: reset the grbm blocks at resume and init
This fixes module reloading and resume as the gfx block seems to be left in a bad state in some cases. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/evergreen.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 6ced1ba2bee8..7b337c361a12 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2583,6 +2583,11 @@ int evergreen_resume(struct radeon_device *rdev)
{
int r;
+ /* reset the asic, the gfx blocks are often in a bad state
+ * after the driver is unloaded or after a resume
+ */
+ if (radeon_asic_reset(rdev))
+ dev_warn(rdev->dev, "GPU reset failed !\n");
/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
* posting will perform necessary task to bring back GPU into good
* shape.
@@ -2699,6 +2704,11 @@ int evergreen_init(struct radeon_device *rdev)
r = radeon_atombios_init(rdev);
if (r)
return r;
+ /* reset the asic, the gfx blocks are often in a bad state
+ * after the driver is unloaded or after a resume
+ */
+ if (radeon_asic_reset(rdev))
+ dev_warn(rdev->dev, "GPU reset failed !\n");
/* Post card if necessary */
if (!evergreen_card_posted(rdev)) {
if (!rdev->bios) {