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drm/amdgpu: allocate VM PDs/PTs on demand

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Let's start to allocate VM PDs/PTs on demand instead of pre-allocating
them during mapping.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2019-01-30 16:07:29 +01:00
committed by Alex Deucher
parent 780637cbdf
commit 0ce15d6f7d
5 changed files with 39 additions and 129 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@@ -410,15 +410,7 @@ static int add_bo_to_vm(struct amdgpu_device *adev, struct kgd_mem *mem,
if (p_bo_va_entry)
*p_bo_va_entry = bo_va_entry;
/* Allocate new page tables if needed and validate
* them.
*/
ret = amdgpu_vm_alloc_pts(adev, vm, va, amdgpu_bo_size(bo));
if (ret) {
pr_err("Failed to allocate pts, err=%d\n", ret);
goto err_alloc_pts;
}
/* Allocate validate page tables if needed */
ret = vm_validate_pt_pd_bos(vm);
if (ret) {
pr_err("validate_pt_pd_bos() failed\n");