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drm/radeon/kms: Fix r600 blit cleanup path

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r600 blit cleanup path need to check if a bo was allocated before
trying to free or unpin it. This patch add this check and avoid
oops when the initialization on r6xx or r7xx hw fails.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse 2010-01-13 10:29:27 +01:00 committed by Dave Airlie
parent 6398d42454
commit 30d2d9a54d
3 changed files with 21 additions and 15 deletions
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6
drivers/gpu/drm/radeon/r600.c
View File

@ -1961,11 +1961,13 @@ int r600_suspend(struct radeon_device *rdev)
r600_wb_disable(rdev);
r600_pcie_gart_disable(rdev);
/* unpin shaders bo */
if (rdev->r600_blit.shader_obj) {
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (unlikely(r != 0))
return r;
if (!r) {
radeon_bo_unpin(rdev->r600_blit.shader_obj);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
}
}
return 0;
}

12
drivers/gpu/drm/radeon/r600_blit_kms.c
View File

@ -512,14 +512,16 @@ void r600_blit_fini(struct radeon_device *rdev)
{
int r;
if (rdev->r600_blit.shader_obj == NULL)
return;
/* If we can't reserve the bo, unref should be enough to destroy
* it when it becomes idle.
*/
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (unlikely(r != 0)) {
dev_err(rdev->dev, "(%d) can't finish r600 blit\n", r);
goto out_unref;
}
if (!r) {
radeon_bo_unpin(rdev->r600_blit.shader_obj);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
out_unref:
}
radeon_bo_unref(&rdev->r600_blit.shader_obj);
}

2
drivers/gpu/drm/radeon/rv770.c
View File

@ -975,11 +975,13 @@ int rv770_suspend(struct radeon_device *rdev)
r600_wb_disable(rdev);
rv770_pcie_gart_disable(rdev);
/* unpin shaders bo */
if (rdev->r600_blit.shader_obj) {
r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
if (likely(r == 0)) {
radeon_bo_unpin(rdev->r600_blit.shader_obj);
radeon_bo_unreserve(rdev->r600_blit.shader_obj);
}
}
return 0;
}