blob: 60b58ee0e6256ed25fbf90b27d2ee4a719264a50 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* CQHCI crypto engine (inline encryption) support
*
* Copyright 2020 Google LLC
*/
#ifndef LINUX_MMC_CQHCI_CRYPTO_H
#define LINUX_MMC_CQHCI_CRYPTO_H
#include <linux/mmc/host.h>
#include "cqhci.h"
#ifdef CONFIG_MMC_CRYPTO
int cqhci_crypto_init(struct cqhci_host *host);
/*
* Returns the crypto bits that should be set in bits 64-127 of the
* task descriptor.
*/
static inline u64 cqhci_crypto_prep_task_desc(struct mmc_request *mrq)
{
if (!mrq->crypto_enabled)
return 0;
return CQHCI_CRYPTO_ENABLE_BIT |
CQHCI_CRYPTO_KEYSLOT(mrq->crypto_key_slot) |
mrq->data_unit_num;
}
#else /* CONFIG_MMC_CRYPTO */
static inline int cqhci_crypto_init(struct cqhci_host *host)
{
return 0;
}
static inline u64 cqhci_crypto_prep_task_desc(struct mmc_request *mrq)
{
return 0;
}
#endif /* !CONFIG_MMC_CRYPTO */
#endif /* LINUX_MMC_CQHCI_CRYPTO_H */
|
