diff options
| author | Yifan Zhang <yifan1.zhang@amd.com> | 2024-07-30 10:45:08 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-06 10:43:57 -0400 |
| commit | 62eefd10ac1c7e976bda47ff311bd87cee40ab8d (patch) | |
| tree | a0e93445d1b8e6206630104abf2d6f492ea14caf /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 847e387e00547b0cc728a5e61f5beb2ff861ed1d (diff) | |
| download | lwn-62eefd10ac1c7e976bda47ff311bd87cee40ab8d.tar.gz lwn-62eefd10ac1c7e976bda47ff311bd87cee40ab8d.zip | |
drm/amdgpu: use CPU for page table update if SDMA is unavailable
avoid using SDMA if it is unavailable.
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index a060c28f0877..bcb729094521 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2397,6 +2397,7 @@ void amdgpu_vm_set_task_info(struct amdgpu_vm *vm) int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, int32_t xcp_id) { + struct amdgpu_ip_block *ip_block; struct amdgpu_bo *root_bo; struct amdgpu_bo_vm *root; int r, i; @@ -2426,6 +2427,11 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, vm->use_cpu_for_update = !!(adev->vm_manager.vm_update_mode & AMDGPU_VM_USE_CPU_FOR_GFX); + /* use CPU for page table update if SDMA is unavailable */ + ip_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_SDMA); + if (!ip_block || ip_block->status.valid == false) + vm->use_cpu_for_update = true; + DRM_DEBUG_DRIVER("VM update mode is %s\n", vm->use_cpu_for_update ? "CPU" : "SDMA"); WARN_ONCE((vm->use_cpu_for_update && |