This is a note to let you know that I've just added the patch titled
drm/amdgpu: fix prime teardown order
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: drm-amdgpu-fix-prime-teardown-order.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 342038d92403b3efa1138a8599666b9f026279d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= christian.koenig@amd.com Date: Fri, 9 Mar 2018 14:42:54 +0100 Subject: drm/amdgpu: fix prime teardown order MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
From: Christian König christian.koenig@amd.com
commit 342038d92403b3efa1138a8599666b9f026279d6 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 -- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -36,8 +36,6 @@ void amdgpu_gem_object_free(struct drm_g struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);
if (robj) { - if (robj->gem_base.import_attach) - drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); amdgpu_mn_unregister(robj); amdgpu_bo_unref(&robj); } --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -94,6 +94,8 @@ static void amdgpu_ttm_bo_destroy(struct
amdgpu_update_memory_usage(bo->adev, &bo->tbo.mem, NULL);
+ if (bo->gem_base.import_attach) + drm_prime_gem_destroy(&bo->gem_base, bo->tbo.sg); drm_gem_object_release(&bo->gem_base); amdgpu_bo_unref(&bo->parent); if (!list_empty(&bo->shadow_list)) {
Patches currently in stable-queue which might be from christian.koenig@amd.com are
queue-4.9/drm-ttm-never-add-bo-that-failed-to-validate-to-the-lru-list.patch queue-4.9/drm-amdgpu-fail-fb-creation-from-imported-dma-bufs.-v2.patch queue-4.9/drm-radeon-fail-fb-creation-from-imported-dma-bufs.patch queue-4.9/drm-amdgpu-fix-prime-teardown-order.patch queue-4.9/drm-edid-set-eld-connector-type-in-drm_edid_to_eld.patch