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drm/amdgpu/userq: add suspend and resume helpers

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Add helpers to unmap and map user queues on suspend and
resume.

Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2025-02-20 16:31:40 -05:00
parent c0bbf64870
commit 73e12e98ec
2 changed files with 42 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

39
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
View file

@ -681,3 +681,42 @@ void amdgpu_userq_mgr_fini(struct amdgpu_userq_mgr *userq_mgr)
mutex_unlock(&userq_mgr->userq_mutex);
mutex_destroy(&userq_mgr->userq_mutex);
}
int amdgpu_userq_suspend(struct amdgpu_device *adev)
{
const struct amdgpu_userq_funcs *userq_funcs;
struct amdgpu_usermode_queue *queue;
struct amdgpu_userq_mgr *uqm, *tmp;
int queue_id;
int ret = 0;
mutex_lock(&adev->userq_mutex);
list_for_each_entry_safe(uqm, tmp, &adev->userq_mgr_list, list) {
cancel_delayed_work_sync(&uqm->resume_work);
idr_for_each_entry(&uqm->userq_idr, queue, queue_id) {
userq_funcs = adev->userq_funcs[queue->queue_type];
ret |= userq_funcs->unmap(uqm, queue);
}
}
mutex_unlock(&adev->userq_mutex);
return ret;
}
int amdgpu_userq_resume(struct amdgpu_device *adev)
{
const struct amdgpu_userq_funcs *userq_funcs;
struct amdgpu_usermode_queue *queue;
struct amdgpu_userq_mgr *uqm, *tmp;
int queue_id;
int ret = 0;
mutex_lock(&adev->userq_mutex);
list_for_each_entry_safe(uqm, tmp, &adev->userq_mgr_list, list) {
idr_for_each_entry(&uqm->userq_idr, queue, queue_id) {
userq_funcs = adev->userq_funcs[queue->queue_type];
ret |= userq_funcs->map(uqm, queue);
}
}
mutex_unlock(&adev->userq_mutex);
return ret;
}

3
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h
View file

@ -111,4 +111,7 @@ uint64_t amdgpu_userqueue_get_doorbell_index(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_db_info *db_info,
struct drm_file *filp);
int amdgpu_userq_suspend(struct amdgpu_device *adev);
int amdgpu_userq_resume(struct amdgpu_device *adev);
#endif