diff options
| author | Christian König <[email protected]> | 2017-07-11 15:23:29 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2017-07-14 15:06:44 +0000 |
| commit | 68c62306b378451ddb1a14c08022d18df3848b4d (patch) | |
| tree | 18b6fedb8cffbfd3a431c428ab8efcf59cb68b1c /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | drm/amdgpu: trace setting VM page tables with the CPU as well (diff) | |
| download | kernel-68c62306b378451ddb1a14c08022d18df3848b4d.tar.gz kernel-68c62306b378451ddb1a14c08022d18df3848b4d.zip | |
drm/amdgpu: flush the HDP only once for CPU based VM updates
No need to do this after every single update.
Signed-off-by: Christian König <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 5638c16887d8..24879cf3da9b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -992,10 +992,6 @@ static void amdgpu_vm_cpu_set_ptes(struct amdgpu_pte_update_params *params, i, value, flags); addr += incr; } - - /* Flush HDP */ - mb(); - amdgpu_gart_flush_gpu_tlb(params->adev, 0); } static int amdgpu_vm_wait_pd(struct amdgpu_device *adev, struct amdgpu_vm *vm, @@ -1238,6 +1234,12 @@ int amdgpu_vm_update_directories(struct amdgpu_device *adev, if (r) amdgpu_vm_invalidate_level(&vm->root); + if (vm->use_cpu_for_update) { + /* Flush HDP */ + mb(); + amdgpu_gart_flush_gpu_tlb(adev, 0); + } + return r; } @@ -1745,6 +1747,12 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, list_add(&bo_va->vm_status, &vm->cleared); spin_unlock(&vm->status_lock); + if (vm->use_cpu_for_update) { + /* Flush HDP */ + mb(); + amdgpu_gart_flush_gpu_tlb(adev, 0); + } + return 0; } |