Unnati Gandhi | d42c021 | 2015-06-03 12:03:24 +0530 | [diff] [blame^] | 1 | /* Copyright (c) 2012,2015, The Linux Foundation. All rights reserved. |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 2 | |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #ifndef __CRYPTO5_ENG_H__ |
| 30 | #define __CRYPYO5_ENG_H__ |
| 31 | |
| 32 | #include <bits.h> |
| 33 | #include <bam.h> |
| 34 | #include <crypto_hash.h> |
| 35 | |
| 36 | /* CRYPTO registers */ |
| 37 | #define CRYPTO_VERSION(x) (x + 0x0000) |
| 38 | #define CRYPTO_DATA_IN(x) (x + 0x0010) |
| 39 | #define CRYPTO_DATA_OUT(x) (x + 0x0020) |
| 40 | #define CRYPTO_STATUS(x) (x + 0x0100) |
| 41 | #define CRYPTO_STATUS2(x) (x + 0x0104) |
| 42 | #define CRYPTO_SEG_SIZE(x) (x + 0x0110) |
| 43 | #define CRYPTO_GOPROC(x) (x + 0x0120) |
| 44 | #define CRYPTO_ENGINES_AVAIL(x) (x + 0x0108) |
| 45 | #define CRYPTO_ENCR_SEG_CFG(x) (x + 0x0200) |
| 46 | #define CRYPTO_AUTH_SEG_CFG(x) (x + 0x0300) |
| 47 | #define CRYPTO_AUTH_SEG_SIZE(x) (x + 0x0304) |
| 48 | #define CRYPTO_AUTH_SEG_START(x) (x + 0x0308) |
| 49 | #define CRYPTO_AUTH_IVn(x, n) (x + 0x0310 + 4*(n)) |
| 50 | #define CRYPTO_AUTH_BYTECNTn(x, n) (x + 0x0390 + 4*(n)) |
| 51 | #define CRYPTO_CONFIG(x) (x + 0x0400) |
| 52 | #define CRYPTO_DEBUG(x) (x + 0x5004) |
| 53 | |
| 54 | /* Status register errors. */ |
| 55 | #define SW_ERR BIT(0) |
| 56 | #define AXI_ERR BIT(14) |
| 57 | #define HSD_ERR BIT(20) |
| 58 | #define AUTH_BUSY BIT(8) |
| 59 | |
| 60 | /* Status2 register errors. */ |
| 61 | #define AXI_EXTRA BIT(1) |
| 62 | |
| 63 | /* CRYPTO_CONFIG register bit definitions */ |
| 64 | #define MASK_ERR_INTR BIT(0) |
| 65 | #define MASK_OP_DONE_INTR BIT(1) |
| 66 | #define MASK_DIN_INTR BIT(2) |
| 67 | #define MASK_DOUT_INTR BIT(3) |
| 68 | #define HIGH_SPD_IN_EN_N (0 << 4) |
| 69 | #define PIPE_SET_SELECT_SHIFT 5 |
| 70 | #define LITTLE_ENDIAN_MODE BIT(9) |
| 71 | #define MAX_QUEUED_REQS (0 << 14) /* 1 Max queued request. */ |
| 72 | #define REQ_SIZE (7 << 17) /* 8 beats */ |
| 73 | |
| 74 | /* CRYPTO_AUTH_SEG_CFG register bit definitions */ |
| 75 | #define SEG_CFG_AUTH_ALG_SHA (1 << 0) |
| 76 | #define SEG_CFG_AUTH_SIZE_SHA1 (0 << 9) |
| 77 | #define SEG_CFG_AUTH_SIZE_SHA256 (1 << 9) |
| 78 | #define SEG_CFG_LAST (1 << 16) |
| 79 | |
| 80 | /* The value to be written to the GOPROC register. |
| 81 | * Enable result dump option along with GO bit. |
| 82 | */ |
| 83 | #define GOPROC_GO (1 | 1 << 2) |
| 84 | |
| 85 | #define CRYPTO_READ_PIPE_INDEX 0 |
| 86 | #define CRYPTO_WRITE_PIPE_INDEX 1 |
| 87 | |
| 88 | /* Burst length recommended by HPG for maximum throughput. */ |
| 89 | #define CRYPTO_BURST_LEN 64 |
| 90 | |
| 91 | /* This value determines how much descriptor data can be advertised on |
| 92 | * the pipe sideband interface at a time. |
| 93 | * The recommendation is to make it the size of your largest descriptor. |
| 94 | * The max setting is 32KB. |
| 95 | */ |
| 96 | |
| 97 | #define CRYPTO_MAX_THRESHOLD (32 * 1024) |
| 98 | |
| 99 | /* Basic CE setting to put the CE in HS mode. */ |
| 100 | #define CRYPTO_RESET_CONFIG 0xE000F |
| 101 | |
| 102 | struct crypto_bam_pipes |
| 103 | { |
| 104 | uint8_t read_pipe; |
| 105 | uint8_t write_pipe; |
Deepa Dinamani | 48637cd | 2013-07-09 14:04:21 -0700 | [diff] [blame] | 106 | uint8_t read_pipe_grp; |
| 107 | uint8_t write_pipe_grp; |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 108 | }; |
| 109 | |
| 110 | struct output_dump |
| 111 | { |
| 112 | uint32_t auth_iv[16]; |
| 113 | uint32_t auth_bytcnt[4]; |
| 114 | uint32_t encr_cntr_iv[4]; |
| 115 | uint32_t status; |
| 116 | uint32_t status2; |
| 117 | uint8_t burst_align_buf[24]; |
| 118 | }__PACKED; |
| 119 | |
| 120 | /* Struct to save the CE device info. |
| 121 | * base : Base addr of CE. |
| 122 | * instance : CE instance used. |
| 123 | * ce_array : ptr to the cmd elements array. |
| 124 | * ce_array_index : index within ce_array where the next cmd element needs to be added. |
| 125 | * cd_start : index within the ce_array to keep track of the num of |
| 126 | * cmd elements that need to be added in the next desc. |
| 127 | * dump : ptr to the result dump memory. |
| 128 | * bam : bam instance used with this CE. |
Deepa Dinamani | bcc62d2 | 2013-05-10 14:10:05 -0700 | [diff] [blame] | 129 | * do_bam_init : Flag to determine if bam should be initalized. |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 130 | */ |
| 131 | struct crypto_dev |
| 132 | { |
| 133 | uint32_t base; |
| 134 | uint32_t instance; |
| 135 | struct cmd_element *ce_array; |
| 136 | uint32_t ce_array_index; |
| 137 | uint32_t cd_start; |
| 138 | struct output_dump *dump; |
| 139 | struct bam_instance bam; |
Deepa Dinamani | bcc62d2 | 2013-05-10 14:10:05 -0700 | [diff] [blame] | 140 | uint8_t do_bam_init; |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 141 | }; |
| 142 | |
| 143 | /* Struct to pass the initial params to CE. |
| 144 | * crypto_base : Base addr of the CE. |
| 145 | * crypto_instance : CE instance used. |
| 146 | * bam_base : Base addr of CE BAM. |
| 147 | * bam_ee : EE used for CE BAM. |
| 148 | * num_ce : Number of cmd elements to be allocated. |
| 149 | * read_fifo_size : Size of the BAM desc read fifo. |
| 150 | * write_fifo_size : Size of the BAM desc write fifo. |
Deepa Dinamani | bcc62d2 | 2013-05-10 14:10:05 -0700 | [diff] [blame] | 151 | * do_bam_init : Flag to determine if bam should be initalized. |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 152 | */ |
| 153 | struct crypto_init_params |
| 154 | { |
| 155 | uint32_t crypto_base; |
| 156 | uint32_t crypto_instance; |
| 157 | uint32_t bam_base; |
| 158 | uint32_t bam_ee; |
| 159 | uint32_t num_ce; |
| 160 | uint32_t read_fifo_size; |
| 161 | uint32_t write_fifo_size; |
Deepa Dinamani | bcc62d2 | 2013-05-10 14:10:05 -0700 | [diff] [blame] | 162 | uint8_t do_bam_init; |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 163 | struct crypto_bam_pipes pipes; |
| 164 | }; |
| 165 | |
| 166 | void crypto5_init_params(struct crypto_dev *dev, struct crypto_init_params *params); |
| 167 | void crypto5_init(struct crypto_dev *dev); |
| 168 | void crypto5_set_ctx(struct crypto_dev *dev, |
| 169 | void *ctx_ptr, |
| 170 | crypto_auth_alg_type auth_alg); |
| 171 | uint32_t crypto5_send_data(struct crypto_dev *dev, |
| 172 | void *ctx_ptr, |
| 173 | uint8_t *data_ptr); |
| 174 | void crypto5_cleanup(struct crypto_dev *dev); |
| 175 | uint32_t crypto5_get_digest(struct crypto_dev *dev, |
| 176 | uint8_t *digest_ptr, |
| 177 | crypto_auth_alg_type auth_alg); |
| 178 | void crypto5_get_ctx(struct crypto_dev *dev, void *ctx_ptr); |
| 179 | uint32_t crypto5_get_max_auth_blk_size(struct crypto_dev *dev); |
Unnati Gandhi | d42c021 | 2015-06-03 12:03:24 +0530 | [diff] [blame^] | 180 | void crypto5_unlock_pipes(struct crypto_dev *dev); |
Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame] | 181 | |
| 182 | #endif |