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| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2018-01-22 12:27:00 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-02-15 18:26:40 +0300 |
| commit | 4c3f97276e156820a0433bf7b59a4df1100829ae (patch) | |
| tree | 6772f78d5a4a2a5728d6a3efc2c5cba4b08cefff /drivers/crypto/ccree/cc_request_mgr.h | |
| parent | e294ca1cca3aa7f33e0d0369646a57089eb5578e (diff) | |
| download | linux-4c3f97276e156820a0433bf7b59a4df1100829ae.tar.xz | |
crypto: ccree - introduce CryptoCell driver
Introduce basic low level Arm TrustZone CryptoCell HW support.
This first patch doesn't actually register any Crypto API
transformations, these will follow up in the next patch.
This first revision supports the CC 712 REE component.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccree/cc_request_mgr.h')
| -rw-r--r-- | drivers/crypto/ccree/cc_request_mgr.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/crypto/ccree/cc_request_mgr.h b/drivers/crypto/ccree/cc_request_mgr.h new file mode 100644 index 000000000000..573cb97af085 --- /dev/null +++ b/drivers/crypto/ccree/cc_request_mgr.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_request_mgr.h + * Request Manager + */ + +#ifndef __REQUEST_MGR_H__ +#define __REQUEST_MGR_H__ + +#include "cc_hw_queue_defs.h" + +int cc_req_mgr_init(struct cc_drvdata *drvdata); + +/*! + * Enqueue caller request to crypto hardware. + * + * \param drvdata + * \param cc_req The request to enqueue + * \param desc The crypto sequence + * \param len The crypto sequence length + * \param is_dout If "true": completion is handled by the caller + * If "false": this function adds a dummy descriptor completion + * and waits upon completion signal. + * + * \return int Returns -EINPROGRESS or error + */ +int cc_send_request(struct cc_drvdata *drvdata, struct cc_crypto_req *cc_req, + struct cc_hw_desc *desc, unsigned int len, + struct crypto_async_request *req); + +int cc_send_sync_request(struct cc_drvdata *drvdata, + struct cc_crypto_req *cc_req, struct cc_hw_desc *desc, + unsigned int len); + +int send_request_init(struct cc_drvdata *drvdata, struct cc_hw_desc *desc, + unsigned int len); + +void complete_request(struct cc_drvdata *drvdata); + +void cc_req_mgr_fini(struct cc_drvdata *drvdata); + +#if defined(CONFIG_PM) +int cc_resume_req_queue(struct cc_drvdata *drvdata); + +int cc_suspend_req_queue(struct cc_drvdata *drvdata); + +bool cc_req_queue_suspended(struct cc_drvdata *drvdata); +#endif + +#endif /*__REQUEST_MGR_H__*/ |