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drm/radeon: fix prime teardown order 

We unmapped imported DMA-bufs when the GEM handle was dropped, not when the
hardware was done with the buffere.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-03-09 14:44:32 +01:00 committed by Alex Deucher
parent 342038d924
commit 0f4f715bc6
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -34,8 +34,6 @@ void radeon_gem_object_free(struct drm_gem_object *gobj)
struct radeon_bo *robj = gem_to_radeon_bo(gobj); struct radeon_bo *robj = gem_to_radeon_bo(gobj);
if (robj) { if (robj) {
if (robj->gem_base.import_attach)
drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
radeon_mn_unregister(robj); radeon_mn_unregister(robj);
radeon_bo_unref(&robj); radeon_bo_unref(&robj);
} }

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

@ -82,6 +82,8 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
mutex_unlock(&bo->rdev->gem.mutex); mutex_unlock(&bo->rdev->gem.mutex);
radeon_bo_clear_surface_reg(bo); radeon_bo_clear_surface_reg(bo);
WARN_ON_ONCE(!list_empty(&bo->va)); WARN_ON_ONCE(!list_empty(&bo->va));
if (bo->gem_base.import_attach)
drm_prime_gem_destroy(&bo->gem_base, bo->tbo.sg);
drm_gem_object_release(&bo->gem_base); drm_gem_object_release(&bo->gem_base);
kfree(bo); kfree(bo);
} }