diff options
Diffstat (limited to 'drivers/crypto/dpaa2_sec/hw/rta/fifo_load_store_cmd.h')
| -rw-r--r-- | drivers/crypto/dpaa2_sec/hw/rta/fifo_load_store_cmd.h | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/fifo_load_store_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/fifo_load_store_cmd.h new file mode 100644 index 00000000..79a48da2 --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/fifo_load_store_cmd.h @@ -0,0 +1,346 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2008-2016 Freescale Semiconductor Inc. + * Copyright (c) 2016 NXP. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __RTA_FIFO_LOAD_STORE_CMD_H__ +#define __RTA_FIFO_LOAD_STORE_CMD_H__ + +extern enum rta_sec_era rta_sec_era; + +static const uint32_t fifo_load_table[][2] = { +/*1*/ { PKA0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A0 }, + { PKA1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A1 }, + { PKA2, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A2 }, + { PKA3, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A3 }, + { PKB0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B0 }, + { PKB1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B1 }, + { PKB2, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B2 }, + { PKB3, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B3 }, + { PKA, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A }, + { PKB, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B }, + { PKN, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_N }, + { SKIP, FIFOLD_CLASS_SKIP }, + { MSG1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_MSG }, + { MSG2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG }, + { MSGOUTSNOOP, FIFOLD_CLASS_BOTH | FIFOLD_TYPE_MSG1OUT2 }, + { MSGINSNOOP, FIFOLD_CLASS_BOTH | FIFOLD_TYPE_MSG }, + { IV1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_IV }, + { IV2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_IV }, + { AAD1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_AAD }, + { ICV1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_ICV }, + { ICV2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_ICV }, + { BIT_DATA, FIFOLD_TYPE_BITDATA }, +/*23*/ { IFIFO, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_NOINFOFIFO } +}; + +/* + * Allowed FIFO_LOAD input data types for each SEC Era. + * Values represent the number of entries from fifo_load_table[] that are + * supported. + */ +static const unsigned int fifo_load_table_sz[] = {22, 22, 23, 23, + 23, 23, 23, 23}; + +static inline int +rta_fifo_load(struct program *program, uint32_t src, + uint64_t loc, uint32_t length, uint32_t flags) +{ + uint32_t opcode = 0; + uint32_t ext_length = 0, val = 0; + int ret = -EINVAL; + bool is_seq_cmd = false; + unsigned int start_pc = program->current_pc; + + /* write command type field */ + if (flags & SEQ) { + opcode = CMD_SEQ_FIFO_LOAD; + is_seq_cmd = true; + } else { + opcode = CMD_FIFO_LOAD; + } + + /* Parameters checking */ + if (is_seq_cmd) { + if ((flags & IMMED) || (flags & SGF)) { + pr_err("SEQ FIFO LOAD: Invalid command\n"); + goto err; + } + if ((rta_sec_era <= RTA_SEC_ERA_5) && (flags & AIDF)) { + pr_err("SEQ FIFO LOAD: Flag(s) not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + if ((flags & VLF) && ((flags & EXT) || (length >> 16))) { + pr_err("SEQ FIFO LOAD: Invalid usage of VLF\n"); + goto err; + } + } else { + if (src == SKIP) { + pr_err("FIFO LOAD: Invalid src\n"); + goto err; + } + if ((flags & AIDF) || (flags & VLF)) { + pr_err("FIFO LOAD: Invalid command\n"); + goto err; + } + if ((flags & IMMED) && (flags & SGF)) { + pr_err("FIFO LOAD: Invalid usage of SGF and IMM\n"); + goto err; + } + if ((flags & IMMED) && ((flags & EXT) || (length >> 16))) { + pr_err("FIFO LOAD: Invalid usage of EXT and IMM\n"); + goto err; + } + } + + /* write input data type field */ + ret = __rta_map_opcode(src, fifo_load_table, + fifo_load_table_sz[rta_sec_era], &val); + if (ret < 0) { + pr_err("FIFO LOAD: Source value is not supported. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + opcode |= val; + + if (flags & CLASS1) + opcode |= FIFOLD_CLASS_CLASS1; + if (flags & CLASS2) + opcode |= FIFOLD_CLASS_CLASS2; + if (flags & BOTH) + opcode |= FIFOLD_CLASS_BOTH; + + /* write fields: SGF|VLF, IMM, [LC1, LC2, F1] */ + if (flags & FLUSH1) + opcode |= FIFOLD_TYPE_FLUSH1; + if (flags & LAST1) + opcode |= FIFOLD_TYPE_LAST1; + if (flags & LAST2) + opcode |= FIFOLD_TYPE_LAST2; + if (!is_seq_cmd) { + if (flags & SGF) + opcode |= FIFOLDST_SGF; + if (flags & IMMED) + opcode |= FIFOLD_IMM; + } else { + if (flags & VLF) + opcode |= FIFOLDST_VLF; + if (flags & AIDF) + opcode |= FIFOLD_AIDF; + } + + /* + * Verify if extended length is required. In case of BITDATA, calculate + * number of full bytes and additional valid bits. + */ + if ((flags & EXT) || (length >> 16)) { + opcode |= FIFOLDST_EXT; + if (src == BIT_DATA) { + ext_length = (length / 8); + length = (length % 8); + } else { + ext_length = length; + length = 0; + } + } + opcode |= (uint16_t) length; + + __rta_out32(program, opcode); + program->current_instruction++; + + /* write pointer or immediate data field */ + if (flags & IMMED) + __rta_inline_data(program, loc, flags & __COPY_MASK, length); + else if (!is_seq_cmd) + __rta_out64(program, program->ps, loc); + + /* write extended length field */ + if (opcode & FIFOLDST_EXT) + __rta_out32(program, ext_length); + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +static const uint32_t fifo_store_table[][2] = { +/*1*/ { PKA0, FIFOST_TYPE_PKHA_A0 }, + { PKA1, FIFOST_TYPE_PKHA_A1 }, + { PKA2, FIFOST_TYPE_PKHA_A2 }, + { PKA3, FIFOST_TYPE_PKHA_A3 }, + { PKB0, FIFOST_TYPE_PKHA_B0 }, + { PKB1, FIFOST_TYPE_PKHA_B1 }, + { PKB2, FIFOST_TYPE_PKHA_B2 }, + { PKB3, FIFOST_TYPE_PKHA_B3 }, + { PKA, FIFOST_TYPE_PKHA_A }, + { PKB, FIFOST_TYPE_PKHA_B }, + { PKN, FIFOST_TYPE_PKHA_N }, + { PKE, FIFOST_TYPE_PKHA_E_JKEK }, + { RNG, FIFOST_TYPE_RNGSTORE }, + { RNGOFIFO, FIFOST_TYPE_RNGFIFO }, + { AFHA_SBOX, FIFOST_TYPE_AF_SBOX_JKEK }, + { MDHA_SPLIT_KEY, FIFOST_CLASS_CLASS2KEY | FIFOST_TYPE_SPLIT_KEK }, + { MSG, FIFOST_TYPE_MESSAGE_DATA }, + { KEY1, FIFOST_CLASS_CLASS1KEY | FIFOST_TYPE_KEY_KEK }, + { KEY2, FIFOST_CLASS_CLASS2KEY | FIFOST_TYPE_KEY_KEK }, + { OFIFO, FIFOST_TYPE_OUTFIFO_KEK}, + { SKIP, FIFOST_TYPE_SKIP }, +/*22*/ { METADATA, FIFOST_TYPE_METADATA}, + { MSG_CKSUM, FIFOST_TYPE_MESSAGE_DATA2 } +}; + +/* + * Allowed FIFO_STORE output data types for each SEC Era. + * Values represent the number of entries from fifo_store_table[] that are + * supported. + */ +static const unsigned int fifo_store_table_sz[] = {21, 21, 21, 21, + 22, 22, 22, 23}; + +static inline int +rta_fifo_store(struct program *program, uint32_t src, + uint32_t encrypt_flags, uint64_t dst, + uint32_t length, uint32_t flags) +{ + uint32_t opcode = 0; + uint32_t val = 0; + int ret = -EINVAL; + bool is_seq_cmd = false; + unsigned int start_pc = program->current_pc; + + /* write command type field */ + if (flags & SEQ) { + opcode = CMD_SEQ_FIFO_STORE; + is_seq_cmd = true; + } else { + opcode = CMD_FIFO_STORE; + } + + /* Parameter checking */ + if (is_seq_cmd) { + if ((flags & VLF) && ((length >> 16) || (flags & EXT))) { + pr_err("SEQ FIFO STORE: Invalid usage of VLF\n"); + goto err; + } + if (dst) { + pr_err("SEQ FIFO STORE: Invalid command\n"); + goto err; + } + if ((src == METADATA) && (flags & (CONT | EXT))) { + pr_err("SEQ FIFO STORE: Invalid flags\n"); + goto err; + } + } else { + if (((src == RNGOFIFO) && ((dst) || (flags & EXT))) || + (src == METADATA)) { + pr_err("FIFO STORE: Invalid destination\n"); + goto err; + } + } + if ((rta_sec_era == RTA_SEC_ERA_7) && (src == AFHA_SBOX)) { + pr_err("FIFO STORE: AFHA S-box not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + + /* write output data type field */ + ret = __rta_map_opcode(src, fifo_store_table, + fifo_store_table_sz[rta_sec_era], &val); + if (ret < 0) { + pr_err("FIFO STORE: Source type not supported. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + opcode |= val; + + if (encrypt_flags & TK) + opcode |= (0x1 << FIFOST_TYPE_SHIFT); + if (encrypt_flags & EKT) { + if (rta_sec_era == RTA_SEC_ERA_1) { + pr_err("FIFO STORE: AES-CCM source types not supported\n"); + ret = -EINVAL; + goto err; + } + opcode |= (0x10 << FIFOST_TYPE_SHIFT); + opcode &= (uint32_t)~(0x20 << FIFOST_TYPE_SHIFT); + } + + /* write flags fields */ + if (flags & CONT) + opcode |= FIFOST_CONT; + if ((flags & VLF) && (is_seq_cmd)) + opcode |= FIFOLDST_VLF; + if ((flags & SGF) && (!is_seq_cmd)) + opcode |= FIFOLDST_SGF; + if (flags & CLASS1) + opcode |= FIFOST_CLASS_CLASS1KEY; + if (flags & CLASS2) + opcode |= FIFOST_CLASS_CLASS2KEY; + if (flags & BOTH) + opcode |= FIFOST_CLASS_BOTH; + + /* Verify if extended length is required */ + if ((length >> 16) || (flags & EXT)) + opcode |= FIFOLDST_EXT; + else + opcode |= (uint16_t) length; + + __rta_out32(program, opcode); + program->current_instruction++; + + /* write pointer field */ + if ((!is_seq_cmd) && (dst)) + __rta_out64(program, program->ps, dst); + + /* write extended length field */ + if (opcode & FIFOLDST_EXT) + __rta_out32(program, length); + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +#endif /* __RTA_FIFO_LOAD_STORE_CMD_H__ */ |