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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: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Emily Deng 2017-12-29 13:13:08 +08:00 committed by Alex Deucher
parent dc947770cf
commit 104bd2ca11
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -1200,13 +1200,19 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
*
* The second command is for the shadow pagetables.
*/
ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1) * 2;
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 */
ndw += ((nptes >> adev->vm_manager.block_size) + 1) * 6;
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) {
/* copy commands needed */