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author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h')
-rw-r--r-- | drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h new file mode 100644 index 00000000..1db55b33 --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/load_cmd.h @@ -0,0 +1,335 @@ +/*- + * 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_LOAD_CMD_H__ +#define __RTA_LOAD_CMD_H__ + +extern enum rta_sec_era rta_sec_era; + +/* Allowed length and offset masks for each SEC Era in case DST = DCTRL */ +static const uint32_t load_len_mask_allowed[] = { + 0x000000ee, + 0x000000fe, + 0x000000fe, + 0x000000fe, + 0x000000fe, + 0x000000fe, + 0x000000fe, + 0x000000fe +}; + +static const uint32_t load_off_mask_allowed[] = { + 0x0000000f, + 0x000000ff, + 0x000000ff, + 0x000000ff, + 0x000000ff, + 0x000000ff, + 0x000000ff, + 0x000000ff +}; + +#define IMM_MUST 0 +#define IMM_CAN 1 +#define IMM_NO 2 +#define IMM_DSNM 3 /* it doesn't matter the src type */ + +enum e_lenoff { + LENOF_03, + LENOF_4, + LENOF_48, + LENOF_448, + LENOF_18, + LENOF_32, + LENOF_24, + LENOF_16, + LENOF_8, + LENOF_128, + LENOF_256, + DSNM /* it doesn't matter the length/offset values */ +}; + +struct load_map { + uint32_t dst; + uint32_t dst_opcode; + enum e_lenoff len_off; + uint8_t imm_src; + +}; + +static const struct load_map load_dst[] = { +/*1*/ { KEY1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_KEYSZ_REG, + LENOF_4, IMM_MUST }, + { KEY2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_KEYSZ_REG, + LENOF_4, IMM_MUST }, + { DATA1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_DATASZ_REG, + LENOF_448, IMM_MUST }, + { DATA2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_DATASZ_REG, + LENOF_448, IMM_MUST }, + { ICV1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_ICVSZ_REG, + LENOF_4, IMM_MUST }, + { ICV2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_ICVSZ_REG, + LENOF_4, IMM_MUST }, + { CCTRL, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_CHACTRL, + LENOF_4, IMM_MUST }, + { DCTRL, LDST_CLASS_DECO | LDST_IMM | LDST_SRCDST_WORD_DECOCTRL, + DSNM, IMM_DSNM }, + { ICTRL, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_IRQCTRL, + LENOF_4, IMM_MUST }, + { DPOVRD, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_PCLOVRD, + LENOF_4, IMM_MUST }, + { CLRW, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_CLRW, + LENOF_4, IMM_MUST }, + { AAD1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_DECO_AAD_SZ, + LENOF_4, IMM_MUST }, + { IV1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_CLASS1_IV_SZ, + LENOF_4, IMM_MUST }, + { ALTDS1, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_ALTDS_CLASS1, + LENOF_448, IMM_MUST }, + { PKASZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_A_SZ, + LENOF_4, IMM_MUST, }, + { PKBSZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_B_SZ, + LENOF_4, IMM_MUST }, + { PKNSZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_N_SZ, + LENOF_4, IMM_MUST }, + { PKESZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_E_SZ, + LENOF_4, IMM_MUST }, + { NFIFO, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_INFO_FIFO, + LENOF_48, IMM_MUST }, + { IFIFO, LDST_SRCDST_BYTE_INFIFO, LENOF_18, IMM_MUST }, + { OFIFO, LDST_SRCDST_BYTE_OUTFIFO, LENOF_18, IMM_MUST }, + { MATH0, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH0, + LENOF_32, IMM_CAN }, + { MATH1, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH1, + LENOF_24, IMM_CAN }, + { MATH2, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH2, + LENOF_16, IMM_CAN }, + { MATH3, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH3, + LENOF_8, IMM_CAN }, + { CONTEXT1, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT, + LENOF_128, IMM_CAN }, + { CONTEXT2, LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_CONTEXT, + LENOF_128, IMM_CAN }, + { KEY1, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_KEY, + LENOF_32, IMM_CAN }, + { KEY2, LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_KEY, + LENOF_32, IMM_CAN }, + { DESCBUF, LDST_CLASS_DECO | LDST_SRCDST_WORD_DESCBUF, + LENOF_256, IMM_NO }, + { DPID, LDST_CLASS_DECO | LDST_SRCDST_WORD_PID, + LENOF_448, IMM_MUST }, +/*32*/ { IDFNS, LDST_SRCDST_WORD_IFNSR, LENOF_18, IMM_MUST }, + { ODFNS, LDST_SRCDST_WORD_OFNSR, LENOF_18, IMM_MUST }, + { ALTSOURCE, LDST_SRCDST_BYTE_ALTSOURCE, LENOF_18, IMM_MUST }, +/*35*/ { NFIFO_SZL, LDST_SRCDST_WORD_INFO_FIFO_SZL, LENOF_48, IMM_MUST }, + { NFIFO_SZM, LDST_SRCDST_WORD_INFO_FIFO_SZM, LENOF_03, IMM_MUST }, + { NFIFO_L, LDST_SRCDST_WORD_INFO_FIFO_L, LENOF_48, IMM_MUST }, + { NFIFO_M, LDST_SRCDST_WORD_INFO_FIFO_M, LENOF_03, IMM_MUST }, + { SZL, LDST_SRCDST_WORD_SZL, LENOF_48, IMM_MUST }, +/*40*/ { SZM, LDST_SRCDST_WORD_SZM, LENOF_03, IMM_MUST } +}; + +/* + * Allowed LOAD destinations for each SEC Era. + * Values represent the number of entries from load_dst[] that are supported. + */ +static const unsigned int load_dst_sz[] = { 31, 34, 34, 40, 40, 40, 40, 40 }; + +static inline int +load_check_len_offset(int pos, uint32_t length, uint32_t offset) +{ + if ((load_dst[pos].dst == DCTRL) && + ((length & ~load_len_mask_allowed[rta_sec_era]) || + (offset & ~load_off_mask_allowed[rta_sec_era]))) + goto err; + + switch (load_dst[pos].len_off) { + case (LENOF_03): + if ((length > 3) || (offset)) + goto err; + break; + case (LENOF_4): + if ((length != 4) || (offset != 0)) + goto err; + break; + case (LENOF_48): + if (!(((length == 4) && (offset == 0)) || + ((length == 8) && (offset == 0)))) + goto err; + break; + case (LENOF_448): + if (!(((length == 4) && (offset == 0)) || + ((length == 4) && (offset == 4)) || + ((length == 8) && (offset == 0)))) + goto err; + break; + case (LENOF_18): + if ((length < 1) || (length > 8) || (offset != 0)) + goto err; + break; + case (LENOF_32): + if ((length > 32) || (offset > 32) || ((offset + length) > 32)) + goto err; + break; + case (LENOF_24): + if ((length > 24) || (offset > 24) || ((offset + length) > 24)) + goto err; + break; + case (LENOF_16): + if ((length > 16) || (offset > 16) || ((offset + length) > 16)) + goto err; + break; + case (LENOF_8): + if ((length > 8) || (offset > 8) || ((offset + length) > 8)) + goto err; + break; + case (LENOF_128): + if ((length > 128) || (offset > 128) || + ((offset + length) > 128)) + goto err; + break; + case (LENOF_256): + if ((length < 1) || (length > 256) || ((length + offset) > 256)) + goto err; + break; + case (DSNM): + break; + default: + goto err; + } + + return 0; +err: + return -EINVAL; +} + +static inline int +rta_load(struct program *program, uint64_t src, uint64_t dst, + uint32_t offset, uint32_t length, uint32_t flags) +{ + uint32_t opcode = 0; + int pos = -1, ret = -EINVAL; + unsigned int start_pc = program->current_pc, i; + + if (flags & SEQ) + opcode = CMD_SEQ_LOAD; + else + opcode = CMD_LOAD; + + if ((length & 0xffffff00) || (offset & 0xffffff00)) { + pr_err("LOAD: Bad length/offset passed. Should be 8 bits\n"); + goto err; + } + + if (flags & SGF) + opcode |= LDST_SGF; + if (flags & VLF) + opcode |= LDST_VLF; + + /* check load destination, length and offset and source type */ + for (i = 0; i < load_dst_sz[rta_sec_era]; i++) + if (dst == load_dst[i].dst) { + pos = (int)i; + break; + } + if (-1 == pos) { + pr_err("LOAD: Invalid dst. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + if (flags & IMMED) { + if (load_dst[pos].imm_src == IMM_NO) { + pr_err("LOAD: Invalid source type. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + opcode |= LDST_IMM; + } else if (load_dst[pos].imm_src == IMM_MUST) { + pr_err("LOAD IMM: Invalid source type. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + ret = load_check_len_offset(pos, length, offset); + if (ret < 0) { + pr_err("LOAD: Invalid length/offset. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + opcode |= load_dst[pos].dst_opcode; + + /* DESC BUFFER: length / offset values are specified in 4-byte words */ + if (dst == DESCBUF) { + opcode |= (length >> 2); + opcode |= ((offset >> 2) << LDST_OFFSET_SHIFT); + } else { + opcode |= length; + opcode |= (offset << LDST_OFFSET_SHIFT); + } + + __rta_out32(program, opcode); + program->current_instruction++; + + /* DECO CONTROL: skip writing pointer of imm data */ + if (dst == DCTRL) + return (int)start_pc; + + /* + * For data copy, 3 possible ways to specify how to copy data: + * - IMMED & !COPY: copy data directly from src( max 8 bytes) + * - IMMED & COPY: copy data imm from the location specified by user + * - !IMMED and is not SEQ cmd: copy the address + */ + if (flags & IMMED) + __rta_inline_data(program, src, flags & __COPY_MASK, length); + else if (!(flags & SEQ)) + __rta_out64(program, program->ps, src); + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +#endif /* __RTA_LOAD_CMD_H__*/ |