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