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authorJerome Glisse <jglisse@redhat.com>2012-02-21 02:57:20 +0400
committerDave Airlie <airlied@redhat.com>2012-02-22 14:30:02 +0400
commit6b7746e8768e1c550b320d5af761f73e5aa37f76 (patch)
treead04aeca4bbc904418d21717f17689f1c0aa5bf7 /drivers/gpu/drm/radeon/rv515.c
parentf0d14daa6906070ca044b86f483fdde7d81f5294 (diff)
downloadlinux-6b7746e8768e1c550b320d5af761f73e5aa37f76.tar.xz
drm/radeon/kms: properly set accel working flag and bailout when false
If accel is not working many subsystem such as the ib pool might not be initialized properly that can lead to segfault inside kernel when cs ioctl is call with non working acceleration. To avoid this make sure the accel working flag is false when an error in GPU startup happen and return EBUSY from cs ioctl if accel is not working. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv515.c')
-rw-r--r--drivers/gpu/drm/radeon/rv515.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 880637fd1946..959bf4483bea 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -424,6 +424,8 @@ static int rv515_startup(struct radeon_device *rdev)
int rv515_resume(struct radeon_device *rdev)
{
+ int r;
+
/* Make sur GART are not working */
if (rdev->flags & RADEON_IS_PCIE)
rv370_pcie_gart_disable(rdev);
@@ -443,7 +445,11 @@ int rv515_resume(struct radeon_device *rdev)
radeon_surface_init(rdev);
rdev->accel_working = true;
- return rv515_startup(rdev);
+ r = rv515_startup(rdev);
+ if (r) {
+ rdev->accel_working = false;
+ }
+ return r;
}
int rv515_suspend(struct radeon_device *rdev)