struct tee_session *tee_session_create_and_open(struct tee_context *ctx,
struct tee_cmd_io *cmd_io)
{
int ret = 0;
struct tee_session *sess;
struct tee *tee;
BUG_ON(!ctx->tee);
tee = ctx->tee;
dev_dbg(_DEV(tee), "%s: >\n", __func__);
ret = tee_get(tee);
if (ret)
return ERR_PTR(-EBUSY);
sess = devm_kzalloc(_DEV(tee), sizeof(struct tee_session), GFP_KERNEL);
if (!sess) {
dev_err(_DEV(tee), "%s: tee_session allocation() failed\n",
__func__);
tee_put(tee);
return ERR_PTR(-ENOMEM);
}
tee_context_get(ctx);
sess->ctx = ctx;
ret = tee_session_open_be(sess, cmd_io);
mutex_lock(&tee->lock);
if (ret || !sess->sessid || cmd_io->err) {
dev_err(_DEV(tee), "%s: ERROR ret=%d (err=0x%08x, org=%d, sessid=0x%08x)\n",
__func__, ret, cmd_io->err,
cmd_io->origin, sess->sessid);
tee_put(tee);
tee_context_put(ctx);
devm_kfree(_DEV(tee), sess);
mutex_unlock(&tee->lock);
if (ret)
return ERR_PTR(ret);
else
return NULL;
}
tee_inc_stats(&tee->stats[TEE_STATS_SESSION_IDX]);
list_add_tail(&sess->entry, &ctx->list_sess);
mutex_unlock(&tee->lock);
dev_dbg(_DEV(tee), "%s: < sess=%p\n", __func__, sess);
return sess;
}
struct tee_shm *tee_shm_alloc_from_rpc(struct tee *tee, size_t size)
{
struct tee_shm *shm;
INMSG();
shm = tee_shm_alloc(tee, size, TEE_SHM_TEMP | TEE_SHM_FROM_RPC);
if (IS_ERR_OR_NULL(shm)) {
dev_err(_DEV(tee), "%s: buffer allocation failed (%ld)\n",
__func__, PTR_ERR(shm));
goto out;
}
mutex_lock(&tee->lock);
tee_inc_stats(&tee->stats[TEE_STATS_SHM_IDX]);
list_add_tail(&shm->entry, &tee->list_rpc_shm);
mutex_unlock(&tee->lock);
shm->ctx = NULL;
out:
OUTMSGX(shm);
return shm;
}