Commit 971fb574 authored by Michael Chen's avatar Michael Chen Committed by Alex Deucher
Browse files

drm/amd/amdgpu: reserve vm invalidation engine for uni_mes 



Reserve vm invalidation engine 6 when uni_mes enabled. It
is used in processing tlb flush request from host.

Signed-off-by: default avatarMichael Chen <michael.chen@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarShaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 87337373)
Cc: stable@vger.kernel.org
parent ac3fd01e

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

+3 −0
Original line number Diff line number Diff line
@@ -597,6 +597,9 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev) 
		/* reserve engine 5 for firmware */

		if (adev->enable_mes)

			vm_inv_engs[i] &= ~(1 << 5);

		/* reserve engine 6 for uni mes */

		if (adev->enable_uni_mes)

			vm_inv_engs[i] &= ~(1 << 6);

		/* reserve mmhub engine 3 for firmware */

		if (adev->enable_umsch_mm)

			vm_inv_engs[i] &= ~(1 << 3);