xref: /openbmc/qemu/include/hw/misc/aspeed_hace.h (revision d481cec7)
1 /*
2  * ASPEED Hash and Crypto Engine
3  *
4  * Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates
5  * Copyright (C) 2021 IBM Corp.
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  */
9 
10 #ifndef ASPEED_HACE_H
11 #define ASPEED_HACE_H
12 
13 #include "hw/sysbus.h"
14 #include "crypto/hash.h"
15 
16 #define TYPE_ASPEED_HACE "aspeed.hace"
17 #define TYPE_ASPEED_AST2400_HACE TYPE_ASPEED_HACE "-ast2400"
18 #define TYPE_ASPEED_AST2500_HACE TYPE_ASPEED_HACE "-ast2500"
19 #define TYPE_ASPEED_AST2600_HACE TYPE_ASPEED_HACE "-ast2600"
20 #define TYPE_ASPEED_AST1030_HACE TYPE_ASPEED_HACE "-ast1030"
21 
22 OBJECT_DECLARE_TYPE(AspeedHACEState, AspeedHACEClass, ASPEED_HACE)
23 
24 #define ASPEED_HACE_NR_REGS (0x64 >> 2)
25 #define ASPEED_HACE_MAX_SG  256 /* max number of entries */
26 
27 struct AspeedHACEState {
28     SysBusDevice parent;
29 
30     MemoryRegion iomem;
31     qemu_irq irq;
32 
33     struct iovec iov_cache[ASPEED_HACE_MAX_SG];
34     uint32_t regs[ASPEED_HACE_NR_REGS];
35     uint32_t total_req_len;
36     uint32_t iov_count;
37 
38     MemoryRegion *dram_mr;
39     AddressSpace dram_as;
40 
41     QCryptoHash *hash_ctx;
42 };
43 
44 
45 struct AspeedHACEClass {
46     SysBusDeviceClass parent_class;
47 
48     uint32_t src_mask;
49     uint32_t dest_mask;
50     uint32_t key_mask;
51     uint32_t hash_mask;
52 };
53 
54 #endif /* ASPEED_HACE_H */
55