Imported Upstream version 17.05
[deb_dpdk.git] / drivers / crypto / dpaa2_sec / hw / rta / header_cmd.h
diff --git a/drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/header_cmd.h
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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_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__ */