diff options
Diffstat (limited to 'drivers/crypto/dpaa2_sec/hw/rta/jump_cmd.h')
-rw-r--r-- | drivers/crypto/dpaa2_sec/hw/rta/jump_cmd.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/jump_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/jump_cmd.h new file mode 100644 index 00000000..2c85beec --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/jump_cmd.h @@ -0,0 +1,207 @@ +/*- + * 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__ */ |