1 /****************************************************************************** 2 * Intel Management Engine Interface (Intel MEI) Linux driver 3 * Intel MEI Interface Header 4 * 5 * This file is provided under a dual BSD/GPLv2 license. When using or 6 * redistributing this file, you may do so under either license. 7 * 8 * GPL LICENSE SUMMARY 9 * 10 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING 23 * 24 * Contact Information: 25 * Intel Corporation. 26 * linux-mei@linux.intel.com 27 * http://www.intel.com 28 * 29 * BSD LICENSE 30 * 31 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 32 * All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 38 * * Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * * Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in 42 * the documentation and/or other materials provided with the 43 * distribution. 44 * * Neither the name Intel Corporation nor the names of its 45 * contributors may be used to endorse or promote products derived 46 * from this software without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 49 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 50 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 51 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 52 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 53 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 54 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 58 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 * 60 *****************************************************************************/ 61 #ifndef _MEI_HW_TXE_REGS_H_ 62 #define _MEI_HW_TXE_REGS_H_ 63 64 #include "hw.h" 65 66 #define SEC_ALIVENESS_TIMER_TIMEOUT (5 * MSEC_PER_SEC) 67 #define SEC_ALIVENESS_WAIT_TIMEOUT (1 * MSEC_PER_SEC) 68 #define SEC_RESET_WAIT_TIMEOUT (1 * MSEC_PER_SEC) 69 #define SEC_READY_WAIT_TIMEOUT (5 * MSEC_PER_SEC) 70 #define START_MESSAGE_RESPONSE_WAIT_TIMEOUT (5 * MSEC_PER_SEC) 71 #define RESET_CANCEL_WAIT_TIMEOUT (1 * MSEC_PER_SEC) 72 73 enum { 74 SEC_BAR, 75 BRIDGE_BAR, 76 77 NUM_OF_MEM_BARS 78 }; 79 80 /* SeC FW Status Register 81 * 82 * FW uses this register in order to report its status to host. 83 * This register resides in PCI-E config space. 84 */ 85 #define PCI_CFG_TXE_FW_STS0 0x40 86 # define PCI_CFG_TXE_FW_STS0_WRK_ST_MSK 0x0000000F 87 # define PCI_CFG_TXE_FW_STS0_OP_ST_MSK 0x000001C0 88 # define PCI_CFG_TXE_FW_STS0_FW_INIT_CMPLT 0x00000200 89 # define PCI_CFG_TXE_FW_STS0_ERR_CODE_MSK 0x0000F000 90 # define PCI_CFG_TXE_FW_STS0_OP_MODE_MSK 0x000F0000 91 # define PCI_CFG_TXE_FW_STS0_RST_CNT_MSK 0x00F00000 92 93 94 #define IPC_BASE_ADDR 0x80400 /* SeC IPC Base Address */ 95 96 /* IPC Input Doorbell Register */ 97 #define SEC_IPC_INPUT_DOORBELL_REG (0x0000 + IPC_BASE_ADDR) 98 99 /* IPC Input Status Register 100 * This register indicates whether or not processing of 101 * the most recent command has been completed by the SEC 102 * New commands and payloads should not be written by the Host 103 * until this indicates that the previous command has been processed. 104 */ 105 #define SEC_IPC_INPUT_STATUS_REG (0x0008 + IPC_BASE_ADDR) 106 # define SEC_IPC_INPUT_STATUS_RDY BIT(0) 107 108 /* IPC Host Interrupt Status Register */ 109 #define SEC_IPC_HOST_INT_STATUS_REG (0x0010 + IPC_BASE_ADDR) 110 #define SEC_IPC_HOST_INT_STATUS_OUT_DB BIT(0) 111 #define SEC_IPC_HOST_INT_STATUS_IN_RDY BIT(1) 112 #define SEC_IPC_HOST_INT_STATUS_HDCP_M0_RCVD BIT(5) 113 #define SEC_IPC_HOST_INT_STATUS_ILL_MEM_ACCESS BIT(17) 114 #define SEC_IPC_HOST_INT_STATUS_AES_HKEY_ERR BIT(18) 115 #define SEC_IPC_HOST_INT_STATUS_DES_HKEY_ERR BIT(19) 116 #define SEC_IPC_HOST_INT_STATUS_TMRMTB_OVERFLOW BIT(21) 117 118 /* Convenient mask for pending interrupts */ 119 #define SEC_IPC_HOST_INT_STATUS_PENDING \ 120 (SEC_IPC_HOST_INT_STATUS_OUT_DB| \ 121 SEC_IPC_HOST_INT_STATUS_IN_RDY) 122 123 /* IPC Host Interrupt Mask Register */ 124 #define SEC_IPC_HOST_INT_MASK_REG (0x0014 + IPC_BASE_ADDR) 125 126 # define SEC_IPC_HOST_INT_MASK_OUT_DB BIT(0) /* Output Doorbell Int Mask */ 127 # define SEC_IPC_HOST_INT_MASK_IN_RDY BIT(1) /* Input Ready Int Mask */ 128 129 /* IPC Input Payload RAM */ 130 #define SEC_IPC_INPUT_PAYLOAD_REG (0x0100 + IPC_BASE_ADDR) 131 /* IPC Shared Payload RAM */ 132 #define IPC_SHARED_PAYLOAD_REG (0x0200 + IPC_BASE_ADDR) 133 134 /* SeC Address Translation Table Entry 2 - Ctrl 135 * 136 * This register resides also in SeC's PCI-E Memory space. 137 */ 138 #define SATT2_CTRL_REG 0x1040 139 # define SATT2_CTRL_VALID_MSK BIT(0) 140 # define SATT2_CTRL_BR_BASE_ADDR_REG_SHIFT 8 141 # define SATT2_CTRL_BRIDGE_HOST_EN_MSK BIT(12) 142 143 /* SATT Table Entry 2 SAP Base Address Register */ 144 #define SATT2_SAP_BA_REG 0x1044 145 /* SATT Table Entry 2 SAP Size Register. */ 146 #define SATT2_SAP_SIZE_REG 0x1048 147 /* SATT Table Entry 2 SAP Bridge Address - LSB Register */ 148 #define SATT2_BRG_BA_LSB_REG 0x104C 149 150 /* Host High-level Interrupt Status Register */ 151 #define HHISR_REG 0x2020 152 /* Host High-level Interrupt Enable Register 153 * 154 * Resides in PCI memory space. This is the top hierarchy for 155 * interrupts from SeC to host, aggregating both interrupts that 156 * arrive through HICR registers as well as interrupts 157 * that arrive via IPC. 158 */ 159 #define HHIER_REG 0x2024 160 #define IPC_HHIER_SEC BIT(0) 161 #define IPC_HHIER_BRIDGE BIT(1) 162 #define IPC_HHIER_MSK (IPC_HHIER_SEC | IPC_HHIER_BRIDGE) 163 164 /* Host High-level Interrupt Mask Register. 165 * 166 * Resides in PCI memory space. 167 * This is the top hierarchy for masking interrupts from SeC to host. 168 */ 169 #define HHIMR_REG 0x2028 170 #define IPC_HHIMR_SEC BIT(0) 171 #define IPC_HHIMR_BRIDGE BIT(1) 172 173 /* Host High-level IRQ Status Register */ 174 #define HHIRQSR_REG 0x202C 175 176 /* Host Interrupt Cause Register 0 - SeC IPC Readiness 177 * 178 * This register is both an ICR to Host from PCI Memory Space 179 * and it is also exposed in the SeC memory space. 180 * This register is used by SeC's IPC driver in order 181 * to synchronize with host about IPC interface state. 182 */ 183 #define HICR_SEC_IPC_READINESS_REG 0x2040 184 #define HICR_SEC_IPC_READINESS_HOST_RDY BIT(0) 185 #define HICR_SEC_IPC_READINESS_SEC_RDY BIT(1) 186 #define HICR_SEC_IPC_READINESS_SYS_RDY \ 187 (HICR_SEC_IPC_READINESS_HOST_RDY | \ 188 HICR_SEC_IPC_READINESS_SEC_RDY) 189 #define HICR_SEC_IPC_READINESS_RDY_CLR BIT(2) 190 191 /* Host Interrupt Cause Register 1 - Aliveness Response */ 192 /* This register is both an ICR to Host from PCI Memory Space 193 * and it is also exposed in the SeC memory space. 194 * The register may be used by SeC to ACK a host request for aliveness. 195 */ 196 #define HICR_HOST_ALIVENESS_RESP_REG 0x2044 197 #define HICR_HOST_ALIVENESS_RESP_ACK BIT(0) 198 199 /* Host Interrupt Cause Register 2 - SeC IPC Output Doorbell */ 200 #define HICR_SEC_IPC_OUTPUT_DOORBELL_REG 0x2048 201 202 /* Host Interrupt Status Register. 203 * 204 * Resides in PCI memory space. 205 * This is the main register involved in generating interrupts 206 * from SeC to host via HICRs. 207 * The interrupt generation rules are as follows: 208 * An interrupt will be generated whenever for any i, 209 * there is a transition from a state where at least one of 210 * the following conditions did not hold, to a state where 211 * ALL the following conditions hold: 212 * A) HISR.INT[i]_STS == 1. 213 * B) HIER.INT[i]_EN == 1. 214 */ 215 #define HISR_REG 0x2060 216 #define HISR_INT_0_STS BIT(0) 217 #define HISR_INT_1_STS BIT(1) 218 #define HISR_INT_2_STS BIT(2) 219 #define HISR_INT_3_STS BIT(3) 220 #define HISR_INT_4_STS BIT(4) 221 #define HISR_INT_5_STS BIT(5) 222 #define HISR_INT_6_STS BIT(6) 223 #define HISR_INT_7_STS BIT(7) 224 #define HISR_INT_STS_MSK \ 225 (HISR_INT_0_STS | HISR_INT_1_STS | HISR_INT_2_STS) 226 227 /* Host Interrupt Enable Register. Resides in PCI memory space. */ 228 #define HIER_REG 0x2064 229 #define HIER_INT_0_EN BIT(0) 230 #define HIER_INT_1_EN BIT(1) 231 #define HIER_INT_2_EN BIT(2) 232 #define HIER_INT_3_EN BIT(3) 233 #define HIER_INT_4_EN BIT(4) 234 #define HIER_INT_5_EN BIT(5) 235 #define HIER_INT_6_EN BIT(6) 236 #define HIER_INT_7_EN BIT(7) 237 238 #define HIER_INT_EN_MSK \ 239 (HIER_INT_0_EN | HIER_INT_1_EN | HIER_INT_2_EN) 240 241 242 /* SEC Memory Space IPC output payload. 243 * 244 * This register is part of the output payload which SEC provides to host. 245 */ 246 #define BRIDGE_IPC_OUTPUT_PAYLOAD_REG 0x20C0 247 248 /* SeC Interrupt Cause Register - Host Aliveness Request 249 * This register is both an ICR to SeC and it is also exposed 250 * in the host-visible PCI memory space. 251 * The register is used by host to request SeC aliveness. 252 */ 253 #define SICR_HOST_ALIVENESS_REQ_REG 0x214C 254 #define SICR_HOST_ALIVENESS_REQ_REQUESTED BIT(0) 255 256 257 /* SeC Interrupt Cause Register - Host IPC Readiness 258 * 259 * This register is both an ICR to SeC and it is also exposed 260 * in the host-visible PCI memory space. 261 * This register is used by the host's SeC driver uses in order 262 * to synchronize with SeC about IPC interface state. 263 */ 264 #define SICR_HOST_IPC_READINESS_REQ_REG 0x2150 265 266 267 #define SICR_HOST_IPC_READINESS_HOST_RDY BIT(0) 268 #define SICR_HOST_IPC_READINESS_SEC_RDY BIT(1) 269 #define SICR_HOST_IPC_READINESS_SYS_RDY \ 270 (SICR_HOST_IPC_READINESS_HOST_RDY | \ 271 SICR_HOST_IPC_READINESS_SEC_RDY) 272 #define SICR_HOST_IPC_READINESS_RDY_CLR BIT(2) 273 274 /* SeC Interrupt Cause Register - SeC IPC Output Status 275 * 276 * This register indicates whether or not processing of the most recent 277 * command has been completed by the Host. 278 * New commands and payloads should not be written by SeC until this 279 * register indicates that the previous command has been processed. 280 */ 281 #define SICR_SEC_IPC_OUTPUT_STATUS_REG 0x2154 282 # define SEC_IPC_OUTPUT_STATUS_RDY BIT(0) 283 284 285 286 /* MEI IPC Message payload size 64 bytes */ 287 #define PAYLOAD_SIZE 64 288 289 /* MAX size for SATT range 32MB */ 290 #define SATT_RANGE_MAX (32 << 20) 291 292 293 #endif /* _MEI_HW_TXE_REGS_H_ */ 294 295