diff options
Diffstat (limited to 'drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h')
| -rw-r--r-- | drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h new file mode 100644 index 00000000..c2a27a2d --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h @@ -0,0 +1,251 @@ +/*- + * 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_HEADER_CMD_H__ +#define __RTA_HEADER_CMD_H__ + +extern enum rta_sec_era rta_sec_era; + +/* Allowed job header flags for each SEC Era. */ +static const uint32_t job_header_flags[] = { + DNR | TD | MTD | SHR | REO, + DNR | TD | MTD | SHR | REO | RSMS, + DNR | TD | MTD | SHR | REO | RSMS, + DNR | TD | MTD | SHR | REO | RSMS, + DNR | TD | MTD | SHR | REO | RSMS | EXT, + DNR | TD | MTD | SHR | REO | RSMS | EXT, + DNR | TD | MTD | SHR | REO | RSMS | EXT, + DNR | TD | MTD | SHR | REO | EXT +}; + +/* Allowed shared header flags for each SEC Era. */ +static const uint32_t shr_header_flags[] = { + DNR | SC | PD, + DNR | SC | PD | CIF, + DNR | SC | PD | CIF, + DNR | SC | PD | CIF | RIF, + DNR | SC | PD | CIF | RIF, + DNR | SC | PD | CIF | RIF, + DNR | SC | PD | CIF | RIF, + DNR | SC | PD | CIF | RIF +}; + +static inline int +rta_shr_header(struct program *program, + enum rta_share_type share, + unsigned int start_idx, + uint32_t flags) +{ + uint32_t opcode = CMD_SHARED_DESC_HDR; + unsigned int start_pc = program->current_pc; + + if (flags & ~shr_header_flags[rta_sec_era]) { + pr_err("SHR_DESC: Flag(s) not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + + switch (share) { + case SHR_ALWAYS: + opcode |= HDR_SHARE_ALWAYS; + break; + case SHR_SERIAL: + opcode |= HDR_SHARE_SERIAL; + break; + case SHR_NEVER: + /* + * opcode |= HDR_SHARE_NEVER; + * HDR_SHARE_NEVER is 0 + */ + break; + case SHR_WAIT: + opcode |= HDR_SHARE_WAIT; + break; + default: + pr_err("SHR_DESC: SHARE VALUE is not supported. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + opcode |= HDR_ONE; + opcode |= (start_idx << HDR_START_IDX_SHIFT) & HDR_START_IDX_MASK; + + if (flags & DNR) + opcode |= HDR_DNR; + if (flags & CIF) + opcode |= HDR_CLEAR_IFIFO; + if (flags & SC) + opcode |= HDR_SAVECTX; + if (flags & PD) + opcode |= HDR_PROP_DNR; + if (flags & RIF) + opcode |= HDR_RIF; + + __rta_out32(program, opcode); + program->current_instruction++; + + if (program->current_instruction == 1) + program->shrhdr = program->buffer; + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return -EINVAL; +} + +static inline int +rta_job_header(struct program *program, + enum rta_share_type share, + unsigned int start_idx, + uint64_t shr_desc, uint32_t flags, + uint32_t ext_flags) +{ + uint32_t opcode = CMD_DESC_HDR; + uint32_t hdr_ext = 0; + unsigned int start_pc = program->current_pc; + + if (flags & ~job_header_flags[rta_sec_era]) { + pr_err("JOB_DESC: Flag(s) not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + + switch (share) { + case SHR_ALWAYS: + opcode |= HDR_SHARE_ALWAYS; + break; + case SHR_SERIAL: + opcode |= HDR_SHARE_SERIAL; + break; + case SHR_NEVER: + /* + * opcode |= HDR_SHARE_NEVER; + * HDR_SHARE_NEVER is 0 + */ + break; + case SHR_WAIT: + opcode |= HDR_SHARE_WAIT; + break; + case SHR_DEFER: + opcode |= HDR_SHARE_DEFER; + break; + default: + pr_err("JOB_DESC: SHARE VALUE is not supported. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + if ((flags & TD) && (flags & REO)) { + pr_err("JOB_DESC: REO flag not supported for trusted descriptors. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + if ((rta_sec_era < RTA_SEC_ERA_7) && (flags & MTD) && !(flags & TD)) { + pr_err("JOB_DESC: Trying to MTD a descriptor that is not a TD. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + if ((flags & EXT) && !(flags & SHR) && (start_idx < 2)) { + pr_err("JOB_DESC: Start index must be >= 2 in case of no SHR and EXT. SEC Program Line: %d\n", + program->current_pc); + goto err; + } + + opcode |= HDR_ONE; + opcode |= ((start_idx << HDR_START_IDX_SHIFT) & HDR_START_IDX_MASK); + + if (flags & EXT) { + opcode |= HDR_EXT; + + if (ext_flags & DSV) { + hdr_ext |= HDR_EXT_DSEL_VALID; + hdr_ext |= ext_flags & DSEL_MASK; + } + + if (ext_flags & FTD) { + if (rta_sec_era <= RTA_SEC_ERA_5) { + pr_err("JOB_DESC: Fake trusted descriptor not supported by SEC Era %d\n", + USER_SEC_ERA(rta_sec_era)); + goto err; + } + + hdr_ext |= HDR_EXT_FTD; + } + } + if (flags & RSMS) + opcode |= HDR_RSLS; + if (flags & DNR) + opcode |= HDR_DNR; + if (flags & TD) + opcode |= HDR_TRUSTED; + if (flags & MTD) + opcode |= HDR_MAKE_TRUSTED; + if (flags & REO) + opcode |= HDR_REVERSE; + if (flags & SHR) + opcode |= HDR_SHARED; + + __rta_out32(program, opcode); + program->current_instruction++; + + if (program->current_instruction == 1) { + program->jobhdr = program->buffer; + + if (opcode & HDR_SHARED) + __rta_out64(program, program->ps, shr_desc); + } + + if (flags & EXT) + __rta_out32(program, hdr_ext); + + /* Note: descriptor length is set in program_finalize routine */ + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return -EINVAL; +} + +#endif /* __RTA_HEADER_CMD_H__ */ |