tee/optee/supp.c

22 void optee_supp_init(struct optee_supp *supp)
24 	memset(supp, 0, sizeof(*supp));
25 	mutex_init(&supp->mutex);
26 	init_completion(&supp->reqs_c);
27 	idr_init(&supp->idr);
28 	INIT_LIST_HEAD(&supp->reqs);
29 	supp->req_id = -1;
32 void optee_supp_uninit(struct optee_supp *supp)
34 	mutex_destroy(&supp->mutex);
35 	idr_destroy(&supp->idr);
38 void optee_supp_release(struct optee_supp *supp)
44 	mutex_lock(&supp->mutex);
47 	idr_for_each_entry(&supp->idr, req, id) {
48 		idr_remove(&supp->idr, id);
54 	list_for_each_entry_safe(req, req_tmp, &supp->reqs, link) {
61 	supp->ctx = NULL;
62 	supp->req_id = -1;
64 	mutex_unlock(&supp->mutex);
81 	struct optee_supp *supp = &optee->supp;
89 	if (!supp->ctx && ctx->supp_nowait)
102 	mutex_lock(&supp->mutex);
103 	list_add_tail(&req->link, &supp->reqs);
105 	mutex_unlock(&supp->mutex);
108 	complete(&supp->reqs_c);
118 		mutex_lock(&supp->mutex);
123 		mutex_unlock(&supp->mutex);
133 static struct optee_supp_req  *supp_pop_entry(struct optee_supp *supp,
138 	if (supp->req_id != -1) {
146 	if (list_empty(&supp->reqs))
149 	req = list_first_entry(&supp->reqs, struct optee_supp_req, link);
156 	*id = idr_alloc(&supp->idr, req, 1, 0, GFP_KERNEL);
215 	struct optee_supp *supp = &optee->supp;
226 		mutex_lock(&supp->mutex);
227 		req = supp_pop_entry(supp, *num_params - num_meta, &id);
228 		mutex_unlock(&supp->mutex);
244 		if (wait_for_completion_interruptible(&supp->reqs_c))
259 		mutex_lock(&supp->mutex);
260 		supp->req_id = id;
261 		mutex_unlock(&supp->mutex);
272 static struct optee_supp_req *supp_pop_req(struct optee_supp *supp,
286 	if (supp->req_id == -1) {
292 		id = supp->req_id;
296 	req = idr_find(&supp->idr, id);
303 	idr_remove(&supp->idr, id);
304 	supp->req_id = -1;
324 	struct optee_supp *supp = &optee->supp;
329 	mutex_lock(&supp->mutex);
330 	req = supp_pop_req(supp, num_params, param, &num_meta);
331 	mutex_unlock(&supp->mutex);