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

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

Signed-off-by: Michael Chen <michael.chen@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Shaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 873373739b)
Cc: stable@vger.kernel.org
This commit is contained in:
Michael Chen 2025-11-13 12:56:43 -05:00 committed by Alex Deucher
parent ac3fd01e4c
commit 971fb57429
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@ -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);