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drm/amdgpu: validate userq hw unmap status for destroying userq

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Before destroying the userq buffer object, it requires validating
the userq HW unmap status and ensuring the userq is unmapped from
hardware. If the user HW unmap failed, then it needs to reset the
queue for reusing.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang 2025-05-16 16:20:54 +08:00 • committed by Alex Deucher
parent 11aaec3566
commit 8b38bf3883
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
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@ -307,6 +307,11 @@ amdgpu_userq_destroy(struct drm_file *filp, int queue_id)
debugfs_remove_recursive(queue->debugfs_queue);
#endif
r = amdgpu_userq_unmap_helper(uq_mgr, queue);
/*TODO: It requires a reset for userq hw unmap error*/
if (unlikely(r != AMDGPU_USERQ_STATE_UNMAPPED)) {
drm_warn(adev_to_drm(uq_mgr->adev), "trying to destroy a HW mapping userq\n");
queue->state = AMDGPU_USERQ_STATE_HUNG;
}
amdgpu_userq_cleanup(uq_mgr, queue, queue_id);
mutex_unlock(&uq_mgr->userq_mutex);