diff options
| author | Christian König <christian.koenig@amd.com> | 2019-09-16 10:33:28 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-16 10:42:55 -0500 |
| commit | 47ca7efa4c13f8698cddc0b9c96938e7febe9258 (patch) | |
| tree | 6257aaec6ec041f11a17f15e2b5a5fd96d5d2113 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | |
| parent | a2cf324785a6dea0a221f5cdfb945b59d2153eeb (diff) | |
drm/amdgpu: allow direct submission in the VM backends v2
This allows us to update page tables directly while in a page fault.
v2: use direct/delayed entities and still wait for moves
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c index 5222d165abfc..a2daeadd770f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c @@ -49,13 +49,6 @@ static int amdgpu_vm_cpu_prepare(struct amdgpu_vm_update_params *p, void *owner, { int r; - /* Wait for PT BOs to be idle. PTs share the same resv. object - * as the root PD BO - */ - r = amdgpu_bo_sync_wait(p->vm->root.base.bo, owner, true); - if (unlikely(r)) - return r; - /* Wait for any BO move to be completed */ if (exclusive) { r = dma_fence_wait(exclusive, true); @@ -63,7 +56,14 @@ static int amdgpu_vm_cpu_prepare(struct amdgpu_vm_update_params *p, void *owner, return r; } - return 0; + /* Don't wait for submissions during page fault */ + if (p->direct) + return 0; + + /* Wait for PT BOs to be idle. PTs share the same resv. object + * as the root PD BO + */ + return amdgpu_bo_sync_wait(p->vm->root.base.bo, owner, true); } /** |