Commit 81659b20 authored by Felix Kuehling's avatar Felix Kuehling Committed by Alex Deucher
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drm/amdgpu: Let KFD use more VMIDs on Arcturus 



When there is no graphics support, KFD can use more of the VMIDs. Graphics
VMIDs are only used for video decoding/encoding and post processing. With
two VCE engines, there is no reason to reserve more than 2 VMIDs for that.

Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 40111ec2

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

+8 −3
Original line number Diff line number Diff line
@@ -1245,10 +1245,15 @@ static int gmc_v9_0_sw_init(void *handle) 
	/*

	 * number of VMs

	 * VMID 0 is reserved for System

	 * amdgpu graphics/compute will use VMIDs 1-7

	 * amdkfd will use VMIDs 8-15

	 * amdgpu graphics/compute will use VMIDs 1..n-1

	 * amdkfd will use VMIDs n..15

	 *

	 * The first KFD VMID is 8 for GPUs with graphics, 3 for

	 * compute-only GPUs. On compute-only GPUs that leaves 2 VMIDs

	 * for video processing.

	 */

	adev->vm_manager.first_kfd_vmid = 8;

	adev->vm_manager.first_kfd_vmid =

		adev->asic_type == CHIP_ARCTURUS ? 3 : 8;



	amdgpu_vm_manager_init(adev);