// SPDX-License-Identifier: GPL-2.0-only /* * MMC crypto engine (inline encryption) support * * Copyright 2020 Google LLC */ #include <linux/blk-crypto.h> #include <linux/mmc/host.h> #include "core.h" #include "crypto.h" #include "queue.h" void mmc_crypto_set_initial_state(struct mmc_host *host) { /* Reset might clear all keys, so reprogram all the keys. */ if (host->caps2 & MMC_CAP2_CRYPTO) blk_crypto_reprogram_all_keys(&host->crypto_profile); } void mmc_crypto_setup_queue(struct request_queue *q, struct mmc_host *host) { if (host->caps2 & MMC_CAP2_CRYPTO) blk_crypto_register(&host->crypto_profile, q); } EXPORT_SYMBOL_GPL(mmc_crypto_setup_queue); void mmc_crypto_prepare_req(struct mmc_queue_req *mqrq) { struct request *req = mmc_queue_req_to_req(mqrq); struct mmc_request *mrq = &mqrq->brq.mrq; struct blk_crypto_keyslot *keyslot; if (!req->crypt_ctx) return; mrq->crypto_ctx = req->crypt_ctx; keyslot = req->crypt_keyslot; if (keyslot) mrq->crypto_key_slot = blk_crypto_keyslot_index(keyslot); } EXPORT_SYMBOL_GPL(mmc_crypto_prepare_req);