From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 11 Jul 2017 16:59:21 +0200 Subject: drm/amdgpu: fix VM flush for CPU based updates MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: 6f1ceabbd7091b81139e342fc2b08105bc4fa035 Patch-mainline: v4.14-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 We don't have any update fence in that case, so the need for flushing isn't detected automatically. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -422,7 +422,7 @@ static int amdgpu_vm_grab_reserved_vmid_ struct dma_fence *updates = sync->last_vm_update; int r = 0; struct dma_fence *flushed, *tmp; - bool needs_flush = false; + bool needs_flush = vm->use_cpu_for_update; flushed = id->flushed_updates; if ((amdgpu_vm_had_gpu_reset(adev, id)) || @@ -543,11 +543,11 @@ int amdgpu_vm_grab_id(struct amdgpu_vm * } kfree(fences); - job->vm_needs_flush = false; + job->vm_needs_flush = vm->use_cpu_for_update; /* Check if we can use a VMID already assigned to this VM */ list_for_each_entry_reverse(id, &id_mgr->ids_lru, list) { struct dma_fence *flushed; - bool needs_flush = false; + bool needs_flush = vm->use_cpu_for_update; /* Check all the prerequisites to using this VMID */ if (amdgpu_vm_had_gpu_reset(adev, id))