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Commit 1b52f2d5 authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/amdgpu: cleanup VM dw estimation a bit 



No functional change.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 90d64722

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

+8 −8
Original line number Diff line number Diff line
@@ -1806,14 +1806,13 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, 
	/*

	 * reserve space for two commands every (1 << BLOCK_SIZE)

	 *  entries or 2k dwords (whatever is smaller)

         *

         * 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);



	/* The second command is for the shadow pagetables. */

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

		ncmds *= 2;



	/* padding, etc. */

	ndw = 64;
@@ -1831,10 +1830,11 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, 
		ndw += ncmds * 10;



		/* extra commands for begin/end fragments */

		ncmds = 2 * adev->vm_manager.fragment_size;

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

		        ndw += 2 * 10 * adev->vm_manager.fragment_size * 2;

		else

		        ndw += 2 * 10 * adev->vm_manager.fragment_size;

			ncmds *= 2;



		ndw += 10 * ncmds;



		params.func = amdgpu_vm_do_set_ptes;

	}