diff options
Diffstat (limited to 'drivers/crypto/dpaa2_sec/hw/rta/seq_in_out_ptr_cmd.h')
-rw-r--r-- | drivers/crypto/dpaa2_sec/hw/rta/seq_in_out_ptr_cmd.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/seq_in_out_ptr_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/seq_in_out_ptr_cmd.h new file mode 100644 index 00000000..8d421a5d --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/seq_in_out_ptr_cmd.h @@ -0,0 +1,208 @@ +/*- + * 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_SEQ_IN_OUT_PTR_CMD_H__ +#define __RTA_SEQ_IN_OUT_PTR_CMD_H__ + +extern enum rta_sec_era rta_sec_era; + +/* Allowed SEQ IN PTR flags for each SEC Era. */ +static const uint32_t seq_in_ptr_flags[] = { + RBS | INL | SGF | PRE | EXT | RTO, + RBS | INL | SGF | PRE | EXT | RTO | RJD, + RBS | INL | SGF | PRE | EXT | RTO | RJD, + RBS | INL | SGF | PRE | EXT | RTO | RJD, + RBS | INL | SGF | PRE | EXT | RTO | RJD | SOP, + RBS | INL | SGF | PRE | EXT | RTO | RJD | SOP, + RBS | INL | SGF | PRE | EXT | RTO | RJD | SOP, + RBS | INL | SGF | PRE | EXT | RTO | RJD | SOP +}; + +/* Allowed SEQ OUT PTR flags for each SEC Era. */ +static const uint32_t seq_out_ptr_flags[] = { + SGF | PRE | EXT, + SGF | PRE | EXT | RTO, + SGF | PRE | EXT | RTO, + SGF | PRE | EXT | RTO, + SGF | PRE | EXT | RTO | RST | EWS, + SGF | PRE | EXT | RTO | RST | EWS, + SGF | PRE | EXT | RTO | RST | EWS, + SGF | PRE | EXT | RTO | RST | EWS +}; + +static inline int +rta_seq_in_ptr(struct program *program, uint64_t src, + uint32_t length, uint32_t flags) +{ + uint32_t opcode = CMD_SEQ_IN_PTR; + unsigned int start_pc = program->current_pc; + int ret = -EINVAL; + + /* Parameters checking */ + if ((flags & RTO) && (flags & PRE)) { + pr_err("SEQ IN PTR: Invalid usage of RTO and PRE flags\n"); + goto err; + } + if (flags & ~seq_in_ptr_flags[rta_sec_era]) { + pr_err("SEQ IN PTR: Flag(s) not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + if ((flags & INL) && (flags & RJD)) { + pr_err("SEQ IN PTR: Invalid usage of INL and RJD flags\n"); + goto err; + } + if ((src) && (flags & (SOP | RTO | PRE))) { + pr_err("SEQ IN PTR: Invalid usage of RTO or PRE flag\n"); + goto err; + } + if ((flags & SOP) && (flags & (RBS | PRE | RTO | EXT))) { + pr_err("SEQ IN PTR: Invalid usage of SOP and (RBS or PRE or RTO or EXT) flags\n"); + goto err; + } + + /* write flag fields */ + if (flags & RBS) + opcode |= SQIN_RBS; + if (flags & INL) + opcode |= SQIN_INL; + if (flags & SGF) + opcode |= SQIN_SGF; + if (flags & PRE) + opcode |= SQIN_PRE; + if (flags & RTO) + opcode |= SQIN_RTO; + if (flags & RJD) + opcode |= SQIN_RJD; + if (flags & SOP) + opcode |= SQIN_SOP; + if ((length >> 16) || (flags & EXT)) { + if (flags & SOP) { + pr_err("SEQ IN PTR: Invalid usage of SOP and EXT flags\n"); + goto err; + } + + opcode |= SQIN_EXT; + } else { + opcode |= length & SQIN_LEN_MASK; + } + + __rta_out32(program, opcode); + program->current_instruction++; + + /* write pointer or immediate data field */ + if (!(opcode & (SQIN_PRE | SQIN_RTO | SQIN_SOP))) + __rta_out64(program, program->ps, src); + + /* write extended length field */ + if (opcode & SQIN_EXT) + __rta_out32(program, length); + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +static inline int +rta_seq_out_ptr(struct program *program, uint64_t dst, + uint32_t length, uint32_t flags) +{ + uint32_t opcode = CMD_SEQ_OUT_PTR; + unsigned int start_pc = program->current_pc; + int ret = -EINVAL; + + /* Parameters checking */ + if (flags & ~seq_out_ptr_flags[rta_sec_era]) { + pr_err("SEQ OUT PTR: Flag(s) not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + if ((flags & RTO) && (flags & PRE)) { + pr_err("SEQ OUT PTR: Invalid usage of RTO and PRE flags\n"); + goto err; + } + if ((dst) && (flags & (RTO | PRE))) { + pr_err("SEQ OUT PTR: Invalid usage of RTO or PRE flag\n"); + goto err; + } + if ((flags & RST) && !(flags & RTO)) { + pr_err("SEQ OUT PTR: RST flag must be used with RTO flag\n"); + goto err; + } + + /* write flag fields */ + if (flags & SGF) + opcode |= SQOUT_SGF; + if (flags & PRE) + opcode |= SQOUT_PRE; + if (flags & RTO) + opcode |= SQOUT_RTO; + if (flags & RST) + opcode |= SQOUT_RST; + if (flags & EWS) + opcode |= SQOUT_EWS; + if ((length >> 16) || (flags & EXT)) + opcode |= SQOUT_EXT; + else + opcode |= length & SQOUT_LEN_MASK; + + __rta_out32(program, opcode); + program->current_instruction++; + + /* write pointer or immediate data field */ + if (!(opcode & (SQOUT_PRE | SQOUT_RTO))) + __rta_out64(program, program->ps, dst); + + /* write extended length field */ + if (opcode & SQOUT_EXT) + __rta_out32(program, length); + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +#endif /* __RTA_SEQ_IN_OUT_PTR_CMD_H__ */ |