drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs (v2)

Doesn't make much sense to have the same functionality twice.

v2: rebase on dma_fence renaming

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 95 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 337c5b31d18d..1dda9321bd5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -530,70 +530,6 @@ static void amdgpu_vm_do_copy_ptes(struct amdgpu_pte_update_params *params,
 }
 
 /**
- * amdgpu_vm_clear_bo - initially clear the page dir/table
- *
- * @adev: amdgpu_device pointer
- * @bo: bo to clear
- *
- * need to reserve bo first before calling it.
- */
-static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
-                              struct amdgpu_vm *vm,
-                              struct amdgpu_bo *bo)
-{
-        struct amdgpu_ring *ring;
-        struct dma_fence *fence = NULL;
-        struct amdgpu_job *job;
-        struct amdgpu_pte_update_params params;
-        unsigned entries;
-        uint64_t addr;
-        int r;
-
-        ring = container_of(vm->entity.sched, struct amdgpu_ring, sched);
-
-        r = reservation_object_reserve_shared(bo->tbo.resv);
-        if (r)
-                return r;
-
-        r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
-        if (r)
-                goto error;
-
-        r = amdgpu_ttm_bind(&bo->tbo, &bo->tbo.mem);
-        if (r)
-                goto error;
-
-        addr = amdgpu_bo_gpu_offset(bo);
-        entries = amdgpu_bo_size(bo) / 8;
-
-        r = amdgpu_job_alloc_with_ib(adev, 64, &job);
-        if (r)
-                goto error;
-
-        memset(&params, 0, sizeof(params));
-        params.adev = adev;
-        params.ib = &job->ibs[0];
-        amdgpu_vm_do_set_ptes(&params, addr, 0, entries, 0, 0);
-        amdgpu_ring_pad_ib(ring, &job->ibs[0]);
-
-        WARN_ON(job->ibs[0].length_dw > 64);
-        r = amdgpu_job_submit(job, ring, &vm->entity,
-                              AMDGPU_FENCE_OWNER_VM, &fence);
-        if (r)
-                goto error_free;
-
-        amdgpu_bo_fence(bo, fence, true);
-        dma_fence_put(fence);
-        return 0;
-
-error_free:
-        amdgpu_job_free(job);
-
-error:
-        return r;
-}
-
-/**
  * amdgpu_vm_map_gart - Resolve gart mapping of addr
  *
  * @pages_addr: optional DMA address to use for lookup
@@ -1435,7 +1371,8 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
                                      AMDGPU_GEM_CREATE_SHADOW |
-                                     AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
+                                     AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
+                                     AMDGPU_GEM_CREATE_VRAM_CLEARED,
                                      NULL, resv, &pt);
                 if (r)
                         goto error_free;
@@ -1445,22 +1382,6 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
                  */
                 pt->parent = amdgpu_bo_ref(vm->page_directory);
 
-                r = amdgpu_vm_clear_bo(adev, vm, pt);
-                if (r) {
-                        amdgpu_bo_unref(&pt->shadow);
-                        amdgpu_bo_unref(&pt);
-                        goto error_free;
-                }
-
-                if (pt->shadow) {
-                        r = amdgpu_vm_clear_bo(adev, vm, pt->shadow);
-                        if (r) {
-                                amdgpu_bo_unref(&pt->shadow);
-                                amdgpu_bo_unref(&pt);
-                                goto error_free;
-                        }
-                }
-
                 vm->page_tables[pt_idx].bo = pt;
                 vm->page_tables[pt_idx].addr = 0;
         }
@@ -1642,7 +1563,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
                              AMDGPU_GEM_DOMAIN_VRAM,
                              AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
                              AMDGPU_GEM_CREATE_SHADOW |
-                             AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
+                             AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
+                             AMDGPU_GEM_CREATE_VRAM_CLEARED,
                              NULL, NULL, &vm->page_directory);
         if (r)
                 goto error_free_sched_entity;
@@ -1651,24 +1573,11 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
         if (r)
                 goto error_free_page_directory;
 
-        r = amdgpu_vm_clear_bo(adev, vm, vm->page_directory);
-        if (r)
-                goto error_unreserve;
-
-        if (vm->page_directory->shadow) {
-                r = amdgpu_vm_clear_bo(adev, vm, vm->page_directory->shadow);
-                if (r)
-                        goto error_unreserve;
-        }
-
         vm->last_eviction_counter = atomic64_read(&adev->num_evictions);
         amdgpu_bo_unreserve(vm->page_directory);
 
         return 0;
 
-error_unreserve:
-        amdgpu_bo_unreserve(vm->page_directory);
-
 error_free_page_directory:
         amdgpu_bo_unref(&vm->page_directory->shadow);
         amdgpu_bo_unref(&vm->page_directory);