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drm/amdgpu: Forward VMID reservation errors

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Otherwise userspace may be fooled into believing it has a reserved VMID
when in reality it doesn't, ultimately leading to GPU hangs when SPM is
used.

Fixes: 80e709ee6e ("drm/amdgpu: add option params to enforce process isolation between graphics and compute")
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Natalie Vock <natalie.vock@gmx.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Natalie Vock
2025-12-01 12:52:38 -05:00
committed by Alex Deucher
parent 40cc2b423d
commit 8defb4f081
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@@ -2916,8 +2916,7 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
switch (args->in.op) {
case AMDGPU_VM_OP_RESERVE_VMID:
/* We only have requirement to reserve vmid from gfxhub */
amdgpu_vmid_alloc_reserved(adev, vm, AMDGPU_GFXHUB(0));
break;
return amdgpu_vmid_alloc_reserved(adev, vm, AMDGPU_GFXHUB(0));
case AMDGPU_VM_OP_UNRESERVE_VMID:
amdgpu_vmid_free_reserved(adev, vm, AMDGPU_GFXHUB(0));
break;