drm/amdgpu: Forward VMID reservation errors

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[ Upstream commit 8defb4f081 ]

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>
[ adapted 3-argument amdgpu_vmid_alloc_reserved(adev, vm, vmhub) call to 2-argument version and added separate error check to preserve reserved_vmid tracking logic. ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Natalie Vock 2026-01-07 05:53:17 -05:00 • committed by Greg Kroah-Hartman

parent 585dbb5cdb

commit c4d18e9540

1 changed files with 4 additions and 2 deletions

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

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