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/*-
* 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__ */
|
