mirror of https://github.com/F-Stack/f-stack.git
403 lines
12 KiB
C
403 lines
12 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* BSD LICENSE
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*
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* Copyright 2008-2016 Freescale Semiconductor Inc.
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* Copyright 2016 NXP.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the above-listed copyright holders nor the
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* names of any contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* GPL LICENSE SUMMARY
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __RTA_MATH_CMD_H__
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#define __RTA_MATH_CMD_H__
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extern enum rta_sec_era rta_sec_era;
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static const uint32_t math_op1[][2] = {
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/*1*/ { MATH0, MATH_SRC0_REG0 },
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{ MATH1, MATH_SRC0_REG1 },
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{ MATH2, MATH_SRC0_REG2 },
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{ MATH3, MATH_SRC0_REG3 },
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{ SEQINSZ, MATH_SRC0_SEQINLEN },
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{ SEQOUTSZ, MATH_SRC0_SEQOUTLEN },
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{ VSEQINSZ, MATH_SRC0_VARSEQINLEN },
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{ VSEQOUTSZ, MATH_SRC0_VARSEQOUTLEN },
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{ ZERO, MATH_SRC0_ZERO },
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/*10*/ { NONE, 0 }, /* dummy value */
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{ DPOVRD, MATH_SRC0_DPOVRD },
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{ ONE, MATH_SRC0_ONE }
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};
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/*
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* Allowed MATH op1 sources for each SEC Era.
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* Values represent the number of entries from math_op1[] that are supported.
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*/
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static const unsigned int math_op1_sz[] = {10, 10, 12, 12, 12, 12, 12, 12};
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static const uint32_t math_op2[][2] = {
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/*1*/ { MATH0, MATH_SRC1_REG0 },
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{ MATH1, MATH_SRC1_REG1 },
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{ MATH2, MATH_SRC1_REG2 },
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{ MATH3, MATH_SRC1_REG3 },
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{ ABD, MATH_SRC1_INFIFO },
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{ OFIFO, MATH_SRC1_OUTFIFO },
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{ ONE, MATH_SRC1_ONE },
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/*8*/ { NONE, 0 }, /* dummy value */
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{ JOBSRC, MATH_SRC1_JOBSOURCE },
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{ DPOVRD, MATH_SRC1_DPOVRD },
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{ VSEQINSZ, MATH_SRC1_VARSEQINLEN },
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{ VSEQOUTSZ, MATH_SRC1_VARSEQOUTLEN },
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/*13*/ { ZERO, MATH_SRC1_ZERO }
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};
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/*
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* Allowed MATH op2 sources for each SEC Era.
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* Values represent the number of entries from math_op2[] that are supported.
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*/
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static const unsigned int math_op2_sz[] = {8, 9, 13, 13, 13, 13, 13, 13};
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static const uint32_t math_result[][2] = {
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/*1*/ { MATH0, MATH_DEST_REG0 },
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{ MATH1, MATH_DEST_REG1 },
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{ MATH2, MATH_DEST_REG2 },
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{ MATH3, MATH_DEST_REG3 },
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{ SEQINSZ, MATH_DEST_SEQINLEN },
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{ SEQOUTSZ, MATH_DEST_SEQOUTLEN },
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{ VSEQINSZ, MATH_DEST_VARSEQINLEN },
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{ VSEQOUTSZ, MATH_DEST_VARSEQOUTLEN },
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/*9*/ { NONE, MATH_DEST_NONE },
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{ DPOVRD, MATH_DEST_DPOVRD }
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};
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/*
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* Allowed MATH result destinations for each SEC Era.
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* Values represent the number of entries from math_result[] that are
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* supported.
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*/
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static const unsigned int math_result_sz[] = {9, 9, 10, 10, 10, 10, 10, 10};
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static inline int
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rta_math(struct program *program, uint64_t operand1,
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uint32_t op, uint64_t operand2, uint32_t result,
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int length, uint32_t options)
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{
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uint32_t opcode = CMD_MATH;
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uint32_t val = 0;
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int ret = -EINVAL;
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unsigned int start_pc = program->current_pc;
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if (((op == MATH_FUN_BSWAP) && (rta_sec_era < RTA_SEC_ERA_4)) ||
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((op == MATH_FUN_ZBYT) && (rta_sec_era < RTA_SEC_ERA_2))) {
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pr_err("MATH: operation not supported by SEC Era %d. SEC PC: %d; Instr: %d\n",
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USER_SEC_ERA(rta_sec_era), program->current_pc,
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program->current_instruction);
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goto err;
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}
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if (options & SWP) {
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if (rta_sec_era < RTA_SEC_ERA_7) {
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pr_err("MATH: operation not supported by SEC Era %d. SEC PC: %d; Instr: %d\n",
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USER_SEC_ERA(rta_sec_era), program->current_pc,
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program->current_instruction);
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goto err;
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}
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if ((options & IFB) ||
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(!(options & IMMED) && !(options & IMMED2)) ||
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((options & IMMED) && (options & IMMED2))) {
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pr_err("MATH: SWP - invalid configuration. SEC PC: %d; Instr: %d\n",
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program->current_pc,
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program->current_instruction);
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goto err;
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}
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}
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/*
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* SHLD operation is different from others and we
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* assume that we can have _NONE as first operand
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* or _SEQINSZ as second operand
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*/
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if ((op != MATH_FUN_SHLD) && ((operand1 == NONE) ||
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(operand2 == SEQINSZ))) {
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pr_err("MATH: Invalid operand. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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/*
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* We first check if it is unary operation. In that
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* case second operand must be _NONE
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*/
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if (((op == MATH_FUN_ZBYT) || (op == MATH_FUN_BSWAP)) &&
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(operand2 != NONE)) {
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pr_err("MATH: Invalid operand2. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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/* Write first operand field */
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if (options & IMMED) {
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opcode |= MATH_SRC0_IMM;
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} else {
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ret = __rta_map_opcode((uint32_t)operand1, math_op1,
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math_op1_sz[rta_sec_era], &val);
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if (ret < 0) {
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pr_err("MATH: operand1 not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc,
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program->current_instruction);
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goto err;
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}
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opcode |= val;
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}
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/* Write second operand field */
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if (options & IMMED2) {
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opcode |= MATH_SRC1_IMM;
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} else {
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ret = __rta_map_opcode((uint32_t)operand2, math_op2,
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math_op2_sz[rta_sec_era], &val);
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if (ret < 0) {
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pr_err("MATH: operand2 not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc,
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program->current_instruction);
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goto err;
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}
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opcode |= val;
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}
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/* Write result field */
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ret = __rta_map_opcode(result, math_result, math_result_sz[rta_sec_era],
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&val);
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if (ret < 0) {
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pr_err("MATH: result not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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opcode |= val;
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/*
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* as we encode operations with their "real" values, we do not
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* to translate but we do need to validate the value
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*/
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switch (op) {
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/*Binary operators */
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case (MATH_FUN_ADD):
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case (MATH_FUN_ADDC):
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case (MATH_FUN_SUB):
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case (MATH_FUN_SUBB):
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case (MATH_FUN_OR):
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case (MATH_FUN_AND):
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case (MATH_FUN_XOR):
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case (MATH_FUN_LSHIFT):
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case (MATH_FUN_RSHIFT):
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case (MATH_FUN_SHLD):
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/* Unary operators */
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case (MATH_FUN_ZBYT):
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case (MATH_FUN_BSWAP):
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opcode |= op;
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break;
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default:
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pr_err("MATH: operator is not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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ret = -EINVAL;
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goto err;
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}
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opcode |= (options & ~(IMMED | IMMED2));
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/* Verify length */
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switch (length) {
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case (1):
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opcode |= MATH_LEN_1BYTE;
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break;
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case (2):
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opcode |= MATH_LEN_2BYTE;
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break;
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case (4):
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opcode |= MATH_LEN_4BYTE;
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break;
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case (8):
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opcode |= MATH_LEN_8BYTE;
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break;
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default:
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pr_err("MATH: length is not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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ret = -EINVAL;
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goto err;
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}
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__rta_out32(program, opcode);
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program->current_instruction++;
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/* Write immediate value */
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if ((options & IMMED) && !(options & IMMED2)) {
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__rta_out64(program, (length > 4) && !(options & IFB),
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operand1);
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} else if ((options & IMMED2) && !(options & IMMED)) {
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__rta_out64(program, (length > 4) && !(options & IFB),
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operand2);
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} else if ((options & IMMED) && (options & IMMED2)) {
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__rta_out32(program, lower_32_bits(operand1));
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__rta_out32(program, lower_32_bits(operand2));
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}
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return (int)start_pc;
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err:
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program->first_error_pc = start_pc;
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program->current_instruction++;
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return ret;
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}
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static inline int
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rta_mathi(struct program *program, uint64_t operand,
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uint32_t op, uint8_t imm, uint32_t result,
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int length, uint32_t options)
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{
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uint32_t opcode = CMD_MATHI;
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uint32_t val = 0;
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int ret = -EINVAL;
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unsigned int start_pc = program->current_pc;
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if (rta_sec_era < RTA_SEC_ERA_6) {
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pr_err("MATHI: Command not supported by SEC Era %d. SEC PC: %d; Instr: %d\n",
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USER_SEC_ERA(rta_sec_era), program->current_pc,
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program->current_instruction);
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goto err;
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}
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if (((op == MATH_FUN_FBYT) && (options & SSEL))) {
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pr_err("MATHI: Illegal combination - FBYT and SSEL. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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if ((options & SWP) && (rta_sec_era < RTA_SEC_ERA_7)) {
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pr_err("MATHI: SWP not supported by SEC Era %d. SEC PC: %d; Instr: %d\n",
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USER_SEC_ERA(rta_sec_era), program->current_pc,
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program->current_instruction);
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goto err;
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}
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/* Write first operand field */
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if (!(options & SSEL))
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ret = __rta_map_opcode((uint32_t)operand, math_op1,
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math_op1_sz[rta_sec_era], &val);
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else
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ret = __rta_map_opcode((uint32_t)operand, math_op2,
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math_op2_sz[rta_sec_era], &val);
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if (ret < 0) {
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pr_err("MATHI: operand not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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if (!(options & SSEL))
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opcode |= val;
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else
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opcode |= (val << (MATHI_SRC1_SHIFT - MATH_SRC1_SHIFT));
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/* Write second operand field */
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opcode |= (imm << MATHI_IMM_SHIFT);
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/* Write result field */
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ret = __rta_map_opcode(result, math_result, math_result_sz[rta_sec_era],
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&val);
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if (ret < 0) {
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pr_err("MATHI: result not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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goto err;
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}
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opcode |= (val << (MATHI_DEST_SHIFT - MATH_DEST_SHIFT));
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/*
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* as we encode operations with their "real" values, we do not have to
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* translate but we do need to validate the value
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*/
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switch (op) {
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case (MATH_FUN_ADD):
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case (MATH_FUN_ADDC):
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case (MATH_FUN_SUB):
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case (MATH_FUN_SUBB):
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case (MATH_FUN_OR):
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case (MATH_FUN_AND):
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case (MATH_FUN_XOR):
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case (MATH_FUN_LSHIFT):
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case (MATH_FUN_RSHIFT):
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case (MATH_FUN_FBYT):
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opcode |= op;
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break;
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default:
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pr_err("MATHI: operator not supported. SEC PC: %d; Instr: %d\n",
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program->current_pc, program->current_instruction);
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ret = -EINVAL;
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goto err;
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}
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opcode |= options;
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/* Verify length */
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switch (length) {
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case (1):
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opcode |= MATH_LEN_1BYTE;
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break;
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case (2):
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opcode |= MATH_LEN_2BYTE;
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break;
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case (4):
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opcode |= MATH_LEN_4BYTE;
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break;
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case (8):
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opcode |= MATH_LEN_8BYTE;
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break;
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default:
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pr_err("MATHI: length %d not supported. SEC PC: %d; Instr: %d\n",
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length, program->current_pc,
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program->current_instruction);
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ret = -EINVAL;
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goto err;
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}
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__rta_out32(program, opcode);
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program->current_instruction++;
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return (int)start_pc;
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err:
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program->first_error_pc = start_pc;
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program->current_instruction++;
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return ret;
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}
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#endif /* __RTA_MATH_CMD_H__ */
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