Add helpers to unmap and map user queues on suspend and
resume.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c | 39 +++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h | 3 ++
2 files changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
index 41a095c12f956..f5c2489baae43 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
@@ -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;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h
index a0cf6978f2ba8..381b9c6f0573d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.h
@@ -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
--
2.49.0
