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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_JUMP_CMD_H__
#define __RTA_JUMP_CMD_H__
extern enum rta_sec_era rta_sec_era;
static const uint32_t jump_test_cond[][2] = {
{ NIFP, JUMP_COND_NIFP },
{ NIP, JUMP_COND_NIP },
{ NOP, JUMP_COND_NOP },
{ NCP, JUMP_COND_NCP },
{ CALM, JUMP_COND_CALM },
{ SELF, JUMP_COND_SELF },
{ SHRD, JUMP_COND_SHRD },
{ JQP, JUMP_COND_JQP },
{ MATH_Z, JUMP_COND_MATH_Z },
{ MATH_N, JUMP_COND_MATH_N },
{ MATH_NV, JUMP_COND_MATH_NV },
{ MATH_C, JUMP_COND_MATH_C },
{ PK_0, JUMP_COND_PK_0 },
{ PK_GCD_1, JUMP_COND_PK_GCD_1 },
{ PK_PRIME, JUMP_COND_PK_PRIME },
{ CLASS1, JUMP_CLASS_CLASS1 },
{ CLASS2, JUMP_CLASS_CLASS2 },
{ BOTH, JUMP_CLASS_BOTH }
};
static const uint32_t jump_test_math_cond[][2] = {
{ MATH_Z, JUMP_COND_MATH_Z },
{ MATH_N, JUMP_COND_MATH_N },
{ MATH_NV, JUMP_COND_MATH_NV },
{ MATH_C, JUMP_COND_MATH_C }
};
static const uint32_t jump_src_dst[][2] = {
{ MATH0, JUMP_SRC_DST_MATH0 },
{ MATH1, JUMP_SRC_DST_MATH1 },
{ MATH2, JUMP_SRC_DST_MATH2 },
{ MATH3, JUMP_SRC_DST_MATH3 },
{ DPOVRD, JUMP_SRC_DST_DPOVRD },
{ SEQINSZ, JUMP_SRC_DST_SEQINLEN },
{ SEQOUTSZ, JUMP_SRC_DST_SEQOUTLEN },
{ VSEQINSZ, JUMP_SRC_DST_VARSEQINLEN },
{ VSEQOUTSZ, JUMP_SRC_DST_VARSEQOUTLEN }
};
static inline int
rta_jump(struct program *program, uint64_t address,
enum rta_jump_type jump_type,
enum rta_jump_cond test_type,
uint32_t test_condition, uint32_t src_dst)
{
uint32_t opcode = CMD_JUMP;
unsigned int start_pc = program->current_pc;
int ret = -EINVAL;
if (((jump_type == GOSUB) || (jump_type == RETURN)) &&
(rta_sec_era < RTA_SEC_ERA_4)) {
pr_err("JUMP: Jump type not supported by SEC Era %d\n",
USER_SEC_ERA(rta_sec_era));
goto err;
}
if (((jump_type == LOCAL_JUMP_INC) || (jump_type == LOCAL_JUMP_DEC)) &&
(rta_sec_era <= RTA_SEC_ERA_5)) {
pr_err("JUMP_INCDEC: Jump type not supported by SEC Era %d\n",
USER_SEC_ERA(rta_sec_era));
goto err;
}
switch (jump_type) {
case (LOCAL_JUMP):
/*
* opcode |= JUMP_TYPE_LOCAL;
* JUMP_TYPE_LOCAL is 0
*/
break;
case (HALT):
opcode |= JUMP_TYPE_HALT;
break;
case (HALT_STATUS):
opcode |= JUMP_TYPE_HALT_USER;
break;
case (FAR_JUMP):
opcode |= JUMP_TYPE_NONLOCAL;
break;
case (GOSUB):
opcode |= JUMP_TYPE_GOSUB;
break;
case (RETURN):
opcode |= JUMP_TYPE_RETURN;
break;
case (LOCAL_JUMP_INC):
opcode |= JUMP_TYPE_LOCAL_INC;
break;
case (LOCAL_JUMP_DEC):
opcode |= JUMP_TYPE_LOCAL_DEC;
break;
default:
pr_err("JUMP: Invalid jump type. SEC Program Line: %d\n",
program->current_pc);
goto err;
}
switch (test_type) {
case (ALL_TRUE):
/*
* opcode |= JUMP_TEST_ALL;
* JUMP_TEST_ALL is 0
*/
break;
case (ALL_FALSE):
opcode |= JUMP_TEST_INVALL;
break;
case (ANY_TRUE):
opcode |= JUMP_TEST_ANY;
break;
case (ANY_FALSE):
opcode |= JUMP_TEST_INVANY;
break;
default:
pr_err("JUMP: test type not supported. SEC Program Line: %d\n",
program->current_pc);
goto err;
}
/* write test condition field */
if ((jump_type != LOCAL_JUMP_INC) && (jump_type != LOCAL_JUMP_DEC)) {
__rta_map_flags(test_condition, jump_test_cond,
ARRAY_SIZE(jump_test_cond), &opcode);
} else {
uint32_t val = 0;
ret = __rta_map_opcode(src_dst, jump_src_dst,
ARRAY_SIZE(jump_src_dst), &val);
if (ret < 0) {
pr_err("JUMP_INCDEC: SRC_DST not supported. SEC PC: %d; Instr: %d\n",
program->current_pc,
program->current_instruction);
goto err;
}
opcode |= val;
__rta_map_flags(test_condition, jump_test_math_cond,
ARRAY_SIZE(jump_test_math_cond), &opcode);
}
/* write local offset field for local jumps and user-defined halt */
if ((jump_type == LOCAL_JUMP) || (jump_type == LOCAL_JUMP_INC) ||
(jump_type == LOCAL_JUMP_DEC) || (jump_type == GOSUB) ||
(jump_type == HALT_STATUS))
opcode |= (uint32_t)(address & JUMP_OFFSET_MASK);
__rta_out32(program, opcode);
program->current_instruction++;
if (jump_type == FAR_JUMP)
__rta_out64(program, program->ps, address);
return (int)start_pc;
err:
program->first_error_pc = start_pc;
program->current_instruction++;
return ret;
}
#endif /* __RTA_JUMP_CMD_H__ */
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