Patch is Tested-by: Rex Zhu rex....@amd.com<mailto:rex....@amd.com>
Regards Rex From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Deucher, Alexander Sent: Thursday, October 25, 2018 11:08 PM To: Christian König <ckoenig.leichtzumer...@gmail.com>; amd-gfx@lists.freedesktop.org Subject: Re: [PATCH] drm/amdgpu: fix VM leaf walking Acked-by: Alex Deucher <alexander.deuc...@amd.com<mailto:alexander.deuc...@amd.com>> ________________________________ From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org<mailto:amd-gfx-boun...@lists.freedesktop.org>> on behalf of Christian König <ckoenig.leichtzumer...@gmail.com<mailto:ckoenig.leichtzumer...@gmail.com>> Sent: Thursday, October 25, 2018 10:38 AM To: amd-gfx@lists.freedesktop.org<mailto:amd-gfx@lists.freedesktop.org> Subject: [PATCH] drm/amdgpu: fix VM leaf walking Make sure we don't try to go down further after the leave walk already ended. This fixes a crash with a new VM test. Signed-off-by: Christian König <christian.koe...@amd.com<mailto:christian.koe...@amd.com>> --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index db0cbf8d219d..352b30409060 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -542,7 +542,8 @@ static void amdgpu_vm_pt_next_leaf(struct amdgpu_device *adev, struct amdgpu_vm_pt_cursor *cursor) { amdgpu_vm_pt_next(adev, cursor); - while (amdgpu_vm_pt_descendant(adev, cursor)); + if (cursor->pfn != ~0ll) + while (amdgpu_vm_pt_descendant(adev, cursor)); } /** -- 2.17.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org<mailto:amd-gfx@lists.freedesktop.org> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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