drivers/tee/tee_shm.c

46 static void tee_shm_release(struct tee_device *teedev, struct tee_shm *shm)
49 		teedev->pool->ops->free(teedev->pool, shm);
51 		int rc = teedev->desc->ops->shm_unregister(shm->ctx, shm);
54 			dev_err(teedev->dev.parent,
64 	tee_device_put(teedev);
70 	struct tee_device *teedev = ctx->teedev;
75 	if (!tee_device_get(teedev))
78 	if (!teedev->pool) {
79 		/* teedev has been detached from driver */
102 	rc = teedev->pool->ops->alloc(teedev->pool, shm, size, align);
113 	tee_device_put(teedev);
132 	struct tee_device *teedev = ctx->teedev;
137 	mutex_lock(&teedev->mutex);
138 	id = idr_alloc(&teedev->idr, NULL, 1, 0, GFP_KERNEL);
139 	mutex_unlock(&teedev->mutex);
145 		mutex_lock(&teedev->mutex);
146 		idr_remove(&teedev->idr, id);
147 		mutex_unlock(&teedev->mutex);
151 	mutex_lock(&teedev->mutex);
152 	ret = idr_replace(&teedev->idr, shm, id);
153 	mutex_unlock(&teedev->mutex);
274 	struct tee_device *teedev = ctx->teedev;
282 	if (!tee_device_get(teedev))
285 	if (!teedev->desc->ops->shm_register ||
286 	    !teedev->desc->ops->shm_unregister) {
335 	rc = teedev->desc->ops->shm_register(ctx, shm, shm->pages,
355 	tee_device_put(teedev);
371 	struct tee_device *teedev = ctx->teedev;
380 	mutex_lock(&teedev->mutex);
381 	id = idr_alloc(&teedev->idr, NULL, 1, 0, GFP_KERNEL);
382 	mutex_unlock(&teedev->mutex);
389 		mutex_lock(&teedev->mutex);
390 		idr_remove(&teedev->idr, id);
391 		mutex_unlock(&teedev->mutex);
395 	mutex_lock(&teedev->mutex);
396 	ret = idr_replace(&teedev->idr, shm, id);
397 	mutex_unlock(&teedev->mutex);
534 	struct tee_device *teedev;
540 	teedev = ctx->teedev;
541 	mutex_lock(&teedev->mutex);
542 	shm = idr_find(&teedev->idr, id);
552 	mutex_unlock(&teedev->mutex);
563 	struct tee_device *teedev = shm->ctx->teedev;
566 	mutex_lock(&teedev->mutex);
575 			idr_remove(&teedev->idr, shm->id);
578 	mutex_unlock(&teedev->mutex);
581 		tee_shm_release(teedev, shm);