1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2019 HiSilicon Limited. */
3#ifndef __HISI_HPRE_H
4#define __HISI_HPRE_H
5
6#include <linux/list.h>
7#include <linux/hisi_acc_qm.h>
8
9#define HPRE_SQE_SIZE			sizeof(struct hpre_sqe)
10#define HPRE_PF_DEF_Q_NUM		64
11#define HPRE_PF_DEF_Q_BASE		0
12
13/*
14 * type used in qm sqc DW6.
15 * 0 - Algorithm which has been supported in V2, like RSA, DH and so on;
16 * 1 - ECC algorithm in V3.
17 */
18#define HPRE_V2_ALG_TYPE	0
19#define HPRE_V3_ECC_ALG_TYPE	1
20
21enum {
22	HPRE_CLUSTER0,
23	HPRE_CLUSTER1,
24	HPRE_CLUSTER2,
25	HPRE_CLUSTER3,
26	HPRE_CLUSTERS_NUM_MAX
27};
28
29enum hpre_ctrl_dbgfs_file {
30	HPRE_CLEAR_ENABLE,
31	HPRE_CLUSTER_CTRL,
32	HPRE_DEBUG_FILE_NUM,
33};
34
35enum hpre_dfx_dbgfs_file {
36	HPRE_SEND_CNT,
37	HPRE_RECV_CNT,
38	HPRE_SEND_FAIL_CNT,
39	HPRE_SEND_BUSY_CNT,
40	HPRE_OVER_THRHLD_CNT,
41	HPRE_OVERTIME_THRHLD,
42	HPRE_INVALID_REQ_CNT,
43	HPRE_DFX_FILE_NUM
44};
45
46#define HPRE_DEBUGFS_FILE_NUM (HPRE_DEBUG_FILE_NUM + HPRE_CLUSTERS_NUM_MAX - 1)
47
48struct hpre_debugfs_file {
49	int index;
50	enum hpre_ctrl_dbgfs_file type;
51	spinlock_t lock;
52	struct hpre_debug *debug;
53};
54
55struct hpre_dfx {
56	atomic64_t value;
57	enum hpre_dfx_dbgfs_file type;
58};
59
60/*
61 * One HPRE controller has one PF and multiple VFs, some global configurations
62 * which PF has need this structure.
63 * Just relevant for PF.
64 */
65struct hpre_debug {
66	struct hpre_dfx dfx[HPRE_DFX_FILE_NUM];
67	struct hpre_debugfs_file files[HPRE_DEBUGFS_FILE_NUM];
68};
69
70struct hpre {
71	struct hisi_qm qm;
72	struct hpre_debug debug;
73	unsigned long status;
74};
75
76enum hpre_alg_type {
77	HPRE_ALG_NC_NCRT = 0x0,
78	HPRE_ALG_NC_CRT = 0x1,
79	HPRE_ALG_KG_STD = 0x2,
80	HPRE_ALG_KG_CRT = 0x3,
81	HPRE_ALG_DH_G2 = 0x4,
82	HPRE_ALG_DH = 0x5,
83	HPRE_ALG_ECC_MUL = 0xD,
84	/* shared by x25519 and x448, but x448 is not supported now */
85	HPRE_ALG_CURVE25519_MUL = 0x10,
86};
87
88struct hpre_sqe {
89	__le32 dw0;
90	__u8 task_len1;
91	__u8 task_len2;
92	__u8 mrttest_num;
93	__u8 resv1;
94	__le64 key;
95	__le64 in;
96	__le64 out;
97	__le16 tag;
98	__le16 resv2;
99#define _HPRE_SQE_ALIGN_EXT	7
100	__le32 rsvd1[_HPRE_SQE_ALIGN_EXT];
101};
102
103struct hisi_qp *hpre_create_qp(u8 type);
104int hpre_algs_register(struct hisi_qm *qm);
105void hpre_algs_unregister(struct hisi_qm *qm);
106bool hpre_check_alg_support(struct hisi_qm *qm, u32 alg);
107#endif
108