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drm/amdgpu: add a VM mapping replace operation v2

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Add a new operation to replace mappings in a VM with a new one.

v2: Fix Jerry's comment, separate out clear operation.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2017-03-13 10:13:39 +01:00
committed by Alex Deucher
parent dc54d3d174
commit 80f95c579d
4 changed files with 83 additions and 1 deletions
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15
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
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@@ -544,7 +544,8 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
if (r)
goto error;
if (operation == AMDGPU_VA_OP_MAP)
if (operation == AMDGPU_VA_OP_MAP ||
operation == AMDGPU_VA_OP_REPLACE)
r = amdgpu_vm_bo_update(adev, bo_va, false);
error:
@@ -595,6 +596,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
case AMDGPU_VA_OP_MAP:
case AMDGPU_VA_OP_UNMAP:
case AMDGPU_VA_OP_CLEAR:
case AMDGPU_VA_OP_REPLACE:
break;
default:
dev_err(&dev->pdev->dev, "unsupported operation %d\n",
@@ -656,6 +658,17 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
args->va_address,
args->map_size);
break;
case AMDGPU_VA_OP_REPLACE:
r = amdgpu_vm_alloc_pts(adev, bo_va->vm, args->va_address,
args->map_size);
if (r)
goto error_backoff;
va_flags = amdgpu_vm_get_pte_flags(adev, args->flags);
r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address,
args->offset_in_bo, args->map_size,
va_flags);
break;
default:
break;
}