diff options
| author | Christian König <christian.koenig@amd.com> | 2013-10-29 20:14:51 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-11-01 15:25:54 -0400 |
| commit | db96bd25868c19d71c25cafefed7d0b00c4be641 (patch) | |
| tree | 667c9a7d4922696ce4f3dc4ab87ea55c27302e56 | |
| parent | 5b2906ecf4ceb6de5e889d367034113d1612bc75 (diff) | |
drm/radeon: clear the page directory using the DMA
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gart.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index fd109d3cae6..8a83b89d470 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -607,8 +607,8 @@ static int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm) */ int radeon_vm_alloc_pt(struct radeon_device *rdev, struct radeon_vm *vm) { - unsigned pd_size, pts_size; - u64 *pd_addr; + unsigned pd_size, pd_entries, pts_size; + struct radeon_ib ib; int r; if (vm == NULL) { @@ -619,8 +619,10 @@ int radeon_vm_alloc_pt(struct radeon_device *rdev, struct radeon_vm *vm) return 0; } -retry: pd_size = radeon_vm_directory_size(rdev); + pd_entries = radeon_vm_num_pdes(rdev); + +retry: r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager, &vm->page_directory, pd_size, RADEON_VM_PTB_ALIGN_SIZE, false); @@ -637,9 +639,31 @@ retry: vm->pd_gpu_addr = radeon_sa_bo_gpu_addr(vm->page_directory); /* Initially clear the page directory */ - pd_addr = radeon_sa_bo_cpu_addr(vm->page_directory); - memset(pd_addr, 0, pd_size); + r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, + NULL, pd_entries * 2 + 64); + if (r) { + radeon_sa_bo_free(rdev, &vm->page_directory, vm->fence); + return r; + } + + ib.length_dw = 0; + + radeon_asic_vm_set_page(rdev, &ib, vm->pd_gpu_addr, + 0, pd_entries, 0, 0); + + radeon_ib_sync_to(&ib, vm->fence); + r = radeon_ib_schedule(rdev, &ib, NULL); + if (r) { + radeon_ib_free(rdev, &ib); + radeon_sa_bo_free(rdev, &vm->page_directory, vm->fence); + return r; + } + radeon_fence_unref(&vm->fence); + vm->fence = radeon_fence_ref(ib.fence); + radeon_ib_free(rdev, &ib); + radeon_fence_unref(&vm->last_flush); + /* allocate page table array */ pts_size = radeon_vm_num_pdes(rdev) * sizeof(struct radeon_sa_bo *); vm->page_tables = kzalloc(pts_size, GFP_KERNEL); |