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Commit 104bd2ca authored by Emily Deng's avatar Emily Deng Committed by Alex Deucher
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drm/amdgpu: Correct the IB size of bo update mapping. 



The amdgpu_vm_frag_ptes will call amdgpu_vm_update_ptes, and for buffer
object that has shadow buffer, need twice commands.

Signed-off-by: default avatarEmily Deng <Emily.Deng@amd.com>
Reviewed-by: default avatarChunming Zhou <david1.zhou@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent dc947770

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

+8 −2
Original line number Diff line number Diff line
@@ -1200,12 +1200,18 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, 
         *

         * The second command is for the shadow pagetables.

	 */

	if (vm->root.base.bo->shadow)

		ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1) * 2;

	else

		ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1);



	/* padding, etc. */

	ndw = 64;



	/* one PDE write for each huge page */

	if (vm->root.base.bo->shadow)

		ndw += ((nptes >> adev->vm_manager.block_size) + 1) * 6 * 2;

	else

		ndw += ((nptes >> adev->vm_manager.block_size) + 1) * 6;



	if (pages_addr) {