--- /dev/null
+/*-
+ * 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_FIFO_LOAD_STORE_CMD_H__
+#define __RTA_FIFO_LOAD_STORE_CMD_H__
+
+extern enum rta_sec_era rta_sec_era;
+
+static const uint32_t fifo_load_table[][2] = {
+/*1*/ { PKA0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A0 },
+ { PKA1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A1 },
+ { PKA2, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A2 },
+ { PKA3, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A3 },
+ { PKB0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B0 },
+ { PKB1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B1 },
+ { PKB2, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B2 },
+ { PKB3, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B3 },
+ { PKA, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_A },
+ { PKB, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_B },
+ { PKN, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_PK_N },
+ { SKIP, FIFOLD_CLASS_SKIP },
+ { MSG1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_MSG },
+ { MSG2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG },
+ { MSGOUTSNOOP, FIFOLD_CLASS_BOTH | FIFOLD_TYPE_MSG1OUT2 },
+ { MSGINSNOOP, FIFOLD_CLASS_BOTH | FIFOLD_TYPE_MSG },
+ { IV1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_IV },
+ { IV2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_IV },
+ { AAD1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_AAD },
+ { ICV1, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_ICV },
+ { ICV2, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_ICV },
+ { BIT_DATA, FIFOLD_TYPE_BITDATA },
+/*23*/ { IFIFO, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_NOINFOFIFO }
+};
+
+/*
+ * Allowed FIFO_LOAD input data types for each SEC Era.
+ * Values represent the number of entries from fifo_load_table[] that are
+ * supported.
+ */
+static const unsigned int fifo_load_table_sz[] = {22, 22, 23, 23,
+ 23, 23, 23, 23};
+
+static inline int
+rta_fifo_load(struct program *program, uint32_t src,
+ uint64_t loc, uint32_t length, uint32_t flags)
+{
+ uint32_t opcode = 0;
+ uint32_t ext_length = 0, val = 0;
+ int ret = -EINVAL;
+ bool is_seq_cmd = false;
+ unsigned int start_pc = program->current_pc;
+
+ /* write command type field */
+ if (flags & SEQ) {
+ opcode = CMD_SEQ_FIFO_LOAD;
+ is_seq_cmd = true;
+ } else {
+ opcode = CMD_FIFO_LOAD;
+ }
+
+ /* Parameters checking */
+ if (is_seq_cmd) {
+ if ((flags & IMMED) || (flags & SGF)) {
+ pr_err("SEQ FIFO LOAD: Invalid command\n");
+ goto err;
+ }
+ if ((rta_sec_era <= RTA_SEC_ERA_5) && (flags & AIDF)) {
+ pr_err("SEQ FIFO LOAD: Flag(s) not supported by SEC Era %d\n",
+ USER_SEC_ERA(rta_sec_era));
+ goto err;
+ }
+ if ((flags & VLF) && ((flags & EXT) || (length >> 16))) {
+ pr_err("SEQ FIFO LOAD: Invalid usage of VLF\n");
+ goto err;
+ }
+ } else {
+ if (src == SKIP) {
+ pr_err("FIFO LOAD: Invalid src\n");
+ goto err;
+ }
+ if ((flags & AIDF) || (flags & VLF)) {
+ pr_err("FIFO LOAD: Invalid command\n");
+ goto err;
+ }
+ if ((flags & IMMED) && (flags & SGF)) {
+ pr_err("FIFO LOAD: Invalid usage of SGF and IMM\n");
+ goto err;
+ }
+ if ((flags & IMMED) && ((flags & EXT) || (length >> 16))) {
+ pr_err("FIFO LOAD: Invalid usage of EXT and IMM\n");
+ goto err;
+ }
+ }
+
+ /* write input data type field */
+ ret = __rta_map_opcode(src, fifo_load_table,
+ fifo_load_table_sz[rta_sec_era], &val);
+ if (ret < 0) {
+ pr_err("FIFO LOAD: Source value is not supported. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+ opcode |= val;
+
+ if (flags & CLASS1)
+ opcode |= FIFOLD_CLASS_CLASS1;
+ if (flags & CLASS2)
+ opcode |= FIFOLD_CLASS_CLASS2;
+ if (flags & BOTH)
+ opcode |= FIFOLD_CLASS_BOTH;
+
+ /* write fields: SGF|VLF, IMM, [LC1, LC2, F1] */
+ if (flags & FLUSH1)
+ opcode |= FIFOLD_TYPE_FLUSH1;
+ if (flags & LAST1)
+ opcode |= FIFOLD_TYPE_LAST1;
+ if (flags & LAST2)
+ opcode |= FIFOLD_TYPE_LAST2;
+ if (!is_seq_cmd) {
+ if (flags & SGF)
+ opcode |= FIFOLDST_SGF;
+ if (flags & IMMED)
+ opcode |= FIFOLD_IMM;
+ } else {
+ if (flags & VLF)
+ opcode |= FIFOLDST_VLF;
+ if (flags & AIDF)
+ opcode |= FIFOLD_AIDF;
+ }
+
+ /*
+ * Verify if extended length is required. In case of BITDATA, calculate
+ * number of full bytes and additional valid bits.
+ */
+ if ((flags & EXT) || (length >> 16)) {
+ opcode |= FIFOLDST_EXT;
+ if (src == BIT_DATA) {
+ ext_length = (length / 8);
+ length = (length % 8);
+ } else {
+ ext_length = length;
+ length = 0;
+ }
+ }
+ opcode |= (uint16_t) length;
+
+ __rta_out32(program, opcode);
+ program->current_instruction++;
+
+ /* write pointer or immediate data field */
+ if (flags & IMMED)
+ __rta_inline_data(program, loc, flags & __COPY_MASK, length);
+ else if (!is_seq_cmd)
+ __rta_out64(program, program->ps, loc);
+
+ /* write extended length field */
+ if (opcode & FIFOLDST_EXT)
+ __rta_out32(program, ext_length);
+
+ return (int)start_pc;
+
+ err:
+ program->first_error_pc = start_pc;
+ program->current_instruction++;
+ return ret;
+}
+
+static const uint32_t fifo_store_table[][2] = {
+/*1*/ { PKA0, FIFOST_TYPE_PKHA_A0 },
+ { PKA1, FIFOST_TYPE_PKHA_A1 },
+ { PKA2, FIFOST_TYPE_PKHA_A2 },
+ { PKA3, FIFOST_TYPE_PKHA_A3 },
+ { PKB0, FIFOST_TYPE_PKHA_B0 },
+ { PKB1, FIFOST_TYPE_PKHA_B1 },
+ { PKB2, FIFOST_TYPE_PKHA_B2 },
+ { PKB3, FIFOST_TYPE_PKHA_B3 },
+ { PKA, FIFOST_TYPE_PKHA_A },
+ { PKB, FIFOST_TYPE_PKHA_B },
+ { PKN, FIFOST_TYPE_PKHA_N },
+ { PKE, FIFOST_TYPE_PKHA_E_JKEK },
+ { RNG, FIFOST_TYPE_RNGSTORE },
+ { RNGOFIFO, FIFOST_TYPE_RNGFIFO },
+ { AFHA_SBOX, FIFOST_TYPE_AF_SBOX_JKEK },
+ { MDHA_SPLIT_KEY, FIFOST_CLASS_CLASS2KEY | FIFOST_TYPE_SPLIT_KEK },
+ { MSG, FIFOST_TYPE_MESSAGE_DATA },
+ { KEY1, FIFOST_CLASS_CLASS1KEY | FIFOST_TYPE_KEY_KEK },
+ { KEY2, FIFOST_CLASS_CLASS2KEY | FIFOST_TYPE_KEY_KEK },
+ { OFIFO, FIFOST_TYPE_OUTFIFO_KEK},
+ { SKIP, FIFOST_TYPE_SKIP },
+/*22*/ { METADATA, FIFOST_TYPE_METADATA},
+ { MSG_CKSUM, FIFOST_TYPE_MESSAGE_DATA2 }
+};
+
+/*
+ * Allowed FIFO_STORE output data types for each SEC Era.
+ * Values represent the number of entries from fifo_store_table[] that are
+ * supported.
+ */
+static const unsigned int fifo_store_table_sz[] = {21, 21, 21, 21,
+ 22, 22, 22, 23};
+
+static inline int
+rta_fifo_store(struct program *program, uint32_t src,
+ uint32_t encrypt_flags, uint64_t dst,
+ uint32_t length, uint32_t flags)
+{
+ uint32_t opcode = 0;
+ uint32_t val = 0;
+ int ret = -EINVAL;
+ bool is_seq_cmd = false;
+ unsigned int start_pc = program->current_pc;
+
+ /* write command type field */
+ if (flags & SEQ) {
+ opcode = CMD_SEQ_FIFO_STORE;
+ is_seq_cmd = true;
+ } else {
+ opcode = CMD_FIFO_STORE;
+ }
+
+ /* Parameter checking */
+ if (is_seq_cmd) {
+ if ((flags & VLF) && ((length >> 16) || (flags & EXT))) {
+ pr_err("SEQ FIFO STORE: Invalid usage of VLF\n");
+ goto err;
+ }
+ if (dst) {
+ pr_err("SEQ FIFO STORE: Invalid command\n");
+ goto err;
+ }
+ if ((src == METADATA) && (flags & (CONT | EXT))) {
+ pr_err("SEQ FIFO STORE: Invalid flags\n");
+ goto err;
+ }
+ } else {
+ if (((src == RNGOFIFO) && ((dst) || (flags & EXT))) ||
+ (src == METADATA)) {
+ pr_err("FIFO STORE: Invalid destination\n");
+ goto err;
+ }
+ }
+ if ((rta_sec_era == RTA_SEC_ERA_7) && (src == AFHA_SBOX)) {
+ pr_err("FIFO STORE: AFHA S-box not supported by SEC Era %d\n",
+ USER_SEC_ERA(rta_sec_era));
+ goto err;
+ }
+
+ /* write output data type field */
+ ret = __rta_map_opcode(src, fifo_store_table,
+ fifo_store_table_sz[rta_sec_era], &val);
+ if (ret < 0) {
+ pr_err("FIFO STORE: Source type not supported. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+ opcode |= val;
+
+ if (encrypt_flags & TK)
+ opcode |= (0x1 << FIFOST_TYPE_SHIFT);
+ if (encrypt_flags & EKT) {
+ if (rta_sec_era == RTA_SEC_ERA_1) {
+ pr_err("FIFO STORE: AES-CCM source types not supported\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ opcode |= (0x10 << FIFOST_TYPE_SHIFT);
+ opcode &= (uint32_t)~(0x20 << FIFOST_TYPE_SHIFT);
+ }
+
+ /* write flags fields */
+ if (flags & CONT)
+ opcode |= FIFOST_CONT;
+ if ((flags & VLF) && (is_seq_cmd))
+ opcode |= FIFOLDST_VLF;
+ if ((flags & SGF) && (!is_seq_cmd))
+ opcode |= FIFOLDST_SGF;
+ if (flags & CLASS1)
+ opcode |= FIFOST_CLASS_CLASS1KEY;
+ if (flags & CLASS2)
+ opcode |= FIFOST_CLASS_CLASS2KEY;
+ if (flags & BOTH)
+ opcode |= FIFOST_CLASS_BOTH;
+
+ /* Verify if extended length is required */
+ if ((length >> 16) || (flags & EXT))
+ opcode |= FIFOLDST_EXT;
+ else
+ opcode |= (uint16_t) length;
+
+ __rta_out32(program, opcode);
+ program->current_instruction++;
+
+ /* write pointer field */
+ if ((!is_seq_cmd) && (dst))
+ __rta_out64(program, program->ps, dst);
+
+ /* write extended length field */
+ if (opcode & FIFOLDST_EXT)
+ __rta_out32(program, length);
+
+ return (int)start_pc;
+
+ err:
+ program->first_error_pc = start_pc;
+ program->current_instruction++;
+ return ret;
+}
+
+#endif /* __RTA_FIFO_LOAD_STORE_CMD_H__ */
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