17174beb6SJohannes Berg /****************************************************************************** 27174beb6SJohannes Berg * 37174beb6SJohannes Berg * This file is provided under a dual BSD/GPLv2 license. When using or 47174beb6SJohannes Berg * redistributing this file, you may do so under either license. 57174beb6SJohannes Berg * 67174beb6SJohannes Berg * GPL LICENSE SUMMARY 77174beb6SJohannes Berg * 87174beb6SJohannes Berg * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. 97174beb6SJohannes Berg * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 107174beb6SJohannes Berg * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 118745f12aSShaul Triebitz * Copyright(c) 2018 Intel Corporation 127174beb6SJohannes Berg * 137174beb6SJohannes Berg * This program is free software; you can redistribute it and/or modify 147174beb6SJohannes Berg * it under the terms of version 2 of the GNU General Public License as 157174beb6SJohannes Berg * published by the Free Software Foundation. 167174beb6SJohannes Berg * 177174beb6SJohannes Berg * This program is distributed in the hope that it will be useful, but 187174beb6SJohannes Berg * WITHOUT ANY WARRANTY; without even the implied warranty of 197174beb6SJohannes Berg * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 207174beb6SJohannes Berg * General Public License for more details. 217174beb6SJohannes Berg * 227174beb6SJohannes Berg * The full GNU General Public License is included in this distribution 237174beb6SJohannes Berg * in the file called COPYING. 247174beb6SJohannes Berg * 257174beb6SJohannes Berg * Contact Information: 267174beb6SJohannes Berg * Intel Linux Wireless <linuxwifi@intel.com> 277174beb6SJohannes Berg * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 287174beb6SJohannes Berg * 297174beb6SJohannes Berg * BSD LICENSE 307174beb6SJohannes Berg * 317174beb6SJohannes Berg * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 327174beb6SJohannes Berg * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 337174beb6SJohannes Berg * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 348745f12aSShaul Triebitz * Copyright(c) 2018 Intel Corporation 357174beb6SJohannes Berg * All rights reserved. 367174beb6SJohannes Berg * 377174beb6SJohannes Berg * Redistribution and use in source and binary forms, with or without 387174beb6SJohannes Berg * modification, are permitted provided that the following conditions 397174beb6SJohannes Berg * are met: 407174beb6SJohannes Berg * 417174beb6SJohannes Berg * * Redistributions of source code must retain the above copyright 427174beb6SJohannes Berg * notice, this list of conditions and the following disclaimer. 437174beb6SJohannes Berg * * Redistributions in binary form must reproduce the above copyright 447174beb6SJohannes Berg * notice, this list of conditions and the following disclaimer in 457174beb6SJohannes Berg * the documentation and/or other materials provided with the 467174beb6SJohannes Berg * distribution. 477174beb6SJohannes Berg * * Neither the name Intel Corporation nor the names of its 487174beb6SJohannes Berg * contributors may be used to endorse or promote products derived 497174beb6SJohannes Berg * from this software without specific prior written permission. 507174beb6SJohannes Berg * 517174beb6SJohannes Berg * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 527174beb6SJohannes Berg * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 537174beb6SJohannes Berg * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 547174beb6SJohannes Berg * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 557174beb6SJohannes Berg * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 567174beb6SJohannes Berg * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 577174beb6SJohannes Berg * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 587174beb6SJohannes Berg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 597174beb6SJohannes Berg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 607174beb6SJohannes Berg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 617174beb6SJohannes Berg * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 627174beb6SJohannes Berg * 637174beb6SJohannes Berg *****************************************************************************/ 647174beb6SJohannes Berg #include <linux/devcoredump.h> 657174beb6SJohannes Berg #include "iwl-drv.h" 667174beb6SJohannes Berg #include "runtime.h" 677174beb6SJohannes Berg #include "dbg.h" 68759931c7SMordechay Goodstein #include "debugfs.h" 697174beb6SJohannes Berg #include "iwl-io.h" 707174beb6SJohannes Berg #include "iwl-prph.h" 717174beb6SJohannes Berg #include "iwl-csr.h" 727174beb6SJohannes Berg 737174beb6SJohannes Berg /** 747174beb6SJohannes Berg * struct iwl_fw_dump_ptrs - set of pointers needed for the fw-error-dump 757174beb6SJohannes Berg * 767174beb6SJohannes Berg * @fwrt_ptr: pointer to the buffer coming from fwrt 777174beb6SJohannes Berg * @trans_ptr: pointer to struct %iwl_trans_dump_data which contains the 787174beb6SJohannes Berg * transport's data. 797174beb6SJohannes Berg * @trans_len: length of the valid data in trans_ptr 807174beb6SJohannes Berg * @fwrt_len: length of the valid data in fwrt_ptr 817174beb6SJohannes Berg */ 827174beb6SJohannes Berg struct iwl_fw_dump_ptrs { 837174beb6SJohannes Berg struct iwl_trans_dump_data *trans_ptr; 847174beb6SJohannes Berg void *fwrt_ptr; 857174beb6SJohannes Berg u32 fwrt_len; 867174beb6SJohannes Berg }; 877174beb6SJohannes Berg 887174beb6SJohannes Berg #define RADIO_REG_MAX_READ 0x2ad 897174beb6SJohannes Berg static void iwl_read_radio_regs(struct iwl_fw_runtime *fwrt, 907174beb6SJohannes Berg struct iwl_fw_error_dump_data **dump_data) 917174beb6SJohannes Berg { 927174beb6SJohannes Berg u8 *pos = (void *)(*dump_data)->data; 937174beb6SJohannes Berg unsigned long flags; 947174beb6SJohannes Berg int i; 957174beb6SJohannes Berg 96b88beaf9SIlan Peer IWL_DEBUG_INFO(fwrt, "WRT radio registers dump\n"); 97b88beaf9SIlan Peer 987174beb6SJohannes Berg if (!iwl_trans_grab_nic_access(fwrt->trans, &flags)) 997174beb6SJohannes Berg return; 1007174beb6SJohannes Berg 1017174beb6SJohannes Berg (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RADIO_REG); 1027174beb6SJohannes Berg (*dump_data)->len = cpu_to_le32(RADIO_REG_MAX_READ); 1037174beb6SJohannes Berg 1047174beb6SJohannes Berg for (i = 0; i < RADIO_REG_MAX_READ; i++) { 1057174beb6SJohannes Berg u32 rd_cmd = RADIO_RSP_RD_CMD; 1067174beb6SJohannes Berg 1077174beb6SJohannes Berg rd_cmd |= i << RADIO_RSP_ADDR_POS; 1087174beb6SJohannes Berg iwl_write_prph_no_grab(fwrt->trans, RSP_RADIO_CMD, rd_cmd); 1097174beb6SJohannes Berg *pos = (u8)iwl_read_prph_no_grab(fwrt->trans, RSP_RADIO_RDDAT); 1107174beb6SJohannes Berg 1117174beb6SJohannes Berg pos++; 1127174beb6SJohannes Berg } 1137174beb6SJohannes Berg 1147174beb6SJohannes Berg *dump_data = iwl_fw_error_next_data(*dump_data); 1157174beb6SJohannes Berg 1167174beb6SJohannes Berg iwl_trans_release_nic_access(fwrt->trans, &flags); 1177174beb6SJohannes Berg } 1187174beb6SJohannes Berg 1197174beb6SJohannes Berg static void iwl_fwrt_dump_rxf(struct iwl_fw_runtime *fwrt, 1207174beb6SJohannes Berg struct iwl_fw_error_dump_data **dump_data, 1217174beb6SJohannes Berg int size, u32 offset, int fifo_num) 1227174beb6SJohannes Berg { 1237174beb6SJohannes Berg struct iwl_fw_error_dump_fifo *fifo_hdr; 1247174beb6SJohannes Berg u32 *fifo_data; 1257174beb6SJohannes Berg u32 fifo_len; 1267174beb6SJohannes Berg int i; 1277174beb6SJohannes Berg 1287174beb6SJohannes Berg fifo_hdr = (void *)(*dump_data)->data; 1297174beb6SJohannes Berg fifo_data = (void *)fifo_hdr->data; 1307174beb6SJohannes Berg fifo_len = size; 1317174beb6SJohannes Berg 1327174beb6SJohannes Berg /* No need to try to read the data if the length is 0 */ 1337174beb6SJohannes Berg if (fifo_len == 0) 1347174beb6SJohannes Berg return; 1357174beb6SJohannes Berg 1367174beb6SJohannes Berg /* Add a TLV for the RXF */ 1377174beb6SJohannes Berg (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); 1387174beb6SJohannes Berg (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); 1397174beb6SJohannes Berg 1407174beb6SJohannes Berg fifo_hdr->fifo_num = cpu_to_le32(fifo_num); 1417174beb6SJohannes Berg fifo_hdr->available_bytes = 1427174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1437174beb6SJohannes Berg RXF_RD_D_SPACE + offset)); 1447174beb6SJohannes Berg fifo_hdr->wr_ptr = 1457174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1467174beb6SJohannes Berg RXF_RD_WR_PTR + offset)); 1477174beb6SJohannes Berg fifo_hdr->rd_ptr = 1487174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1497174beb6SJohannes Berg RXF_RD_RD_PTR + offset)); 1507174beb6SJohannes Berg fifo_hdr->fence_ptr = 1517174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1527174beb6SJohannes Berg RXF_RD_FENCE_PTR + offset)); 1537174beb6SJohannes Berg fifo_hdr->fence_mode = 1547174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1557174beb6SJohannes Berg RXF_SET_FENCE_MODE + offset)); 1567174beb6SJohannes Berg 1577174beb6SJohannes Berg /* Lock fence */ 1587174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, RXF_SET_FENCE_MODE + offset, 0x1); 1597174beb6SJohannes Berg /* Set fence pointer to the same place like WR pointer */ 1607174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, RXF_LD_WR2FENCE + offset, 0x1); 1617174beb6SJohannes Berg /* Set fence offset */ 1627174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, 1637174beb6SJohannes Berg RXF_LD_FENCE_OFFSET_ADDR + offset, 0x0); 1647174beb6SJohannes Berg 1657174beb6SJohannes Berg /* Read FIFO */ 1667174beb6SJohannes Berg fifo_len /= sizeof(u32); /* Size in DWORDS */ 1677174beb6SJohannes Berg for (i = 0; i < fifo_len; i++) 1687174beb6SJohannes Berg fifo_data[i] = iwl_trans_read_prph(fwrt->trans, 1697174beb6SJohannes Berg RXF_FIFO_RD_FENCE_INC + 1707174beb6SJohannes Berg offset); 1717174beb6SJohannes Berg *dump_data = iwl_fw_error_next_data(*dump_data); 1727174beb6SJohannes Berg } 1737174beb6SJohannes Berg 1747174beb6SJohannes Berg static void iwl_fwrt_dump_txf(struct iwl_fw_runtime *fwrt, 1757174beb6SJohannes Berg struct iwl_fw_error_dump_data **dump_data, 1767174beb6SJohannes Berg int size, u32 offset, int fifo_num) 1777174beb6SJohannes Berg { 1787174beb6SJohannes Berg struct iwl_fw_error_dump_fifo *fifo_hdr; 1797174beb6SJohannes Berg u32 *fifo_data; 1807174beb6SJohannes Berg u32 fifo_len; 1817174beb6SJohannes Berg int i; 1827174beb6SJohannes Berg 1837174beb6SJohannes Berg fifo_hdr = (void *)(*dump_data)->data; 1847174beb6SJohannes Berg fifo_data = (void *)fifo_hdr->data; 1857174beb6SJohannes Berg fifo_len = size; 1867174beb6SJohannes Berg 1877174beb6SJohannes Berg /* No need to try to read the data if the length is 0 */ 1887174beb6SJohannes Berg if (fifo_len == 0) 1897174beb6SJohannes Berg return; 1907174beb6SJohannes Berg 1917174beb6SJohannes Berg /* Add a TLV for the FIFO */ 1927174beb6SJohannes Berg (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF); 1937174beb6SJohannes Berg (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); 1947174beb6SJohannes Berg 1957174beb6SJohannes Berg fifo_hdr->fifo_num = cpu_to_le32(fifo_num); 1967174beb6SJohannes Berg fifo_hdr->available_bytes = 1977174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 1987174beb6SJohannes Berg TXF_FIFO_ITEM_CNT + offset)); 1997174beb6SJohannes Berg fifo_hdr->wr_ptr = 2007174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 2017174beb6SJohannes Berg TXF_WR_PTR + offset)); 2027174beb6SJohannes Berg fifo_hdr->rd_ptr = 2037174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 2047174beb6SJohannes Berg TXF_RD_PTR + offset)); 2057174beb6SJohannes Berg fifo_hdr->fence_ptr = 2067174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 2077174beb6SJohannes Berg TXF_FENCE_PTR + offset)); 2087174beb6SJohannes Berg fifo_hdr->fence_mode = 2097174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 2107174beb6SJohannes Berg TXF_LOCK_FENCE + offset)); 2117174beb6SJohannes Berg 2127174beb6SJohannes Berg /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */ 2137174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, TXF_READ_MODIFY_ADDR + offset, 2147174beb6SJohannes Berg TXF_WR_PTR + offset); 2157174beb6SJohannes Berg 2167174beb6SJohannes Berg /* Dummy-read to advance the read pointer to the head */ 2177174beb6SJohannes Berg iwl_trans_read_prph(fwrt->trans, TXF_READ_MODIFY_DATA + offset); 2187174beb6SJohannes Berg 2197174beb6SJohannes Berg /* Read FIFO */ 2207174beb6SJohannes Berg fifo_len /= sizeof(u32); /* Size in DWORDS */ 2217174beb6SJohannes Berg for (i = 0; i < fifo_len; i++) 2227174beb6SJohannes Berg fifo_data[i] = iwl_trans_read_prph(fwrt->trans, 2237174beb6SJohannes Berg TXF_READ_MODIFY_DATA + 2247174beb6SJohannes Berg offset); 2257174beb6SJohannes Berg *dump_data = iwl_fw_error_next_data(*dump_data); 2267174beb6SJohannes Berg } 2277174beb6SJohannes Berg 2287174beb6SJohannes Berg static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt, 2297174beb6SJohannes Berg struct iwl_fw_error_dump_data **dump_data) 2307174beb6SJohannes Berg { 2317174beb6SJohannes Berg struct iwl_fw_error_dump_fifo *fifo_hdr; 2327174beb6SJohannes Berg struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg; 2337174beb6SJohannes Berg u32 *fifo_data; 2347174beb6SJohannes Berg u32 fifo_len; 2357174beb6SJohannes Berg unsigned long flags; 2367174beb6SJohannes Berg int i, j; 2377174beb6SJohannes Berg 238b88beaf9SIlan Peer IWL_DEBUG_INFO(fwrt, "WRT FIFO dump\n"); 239b88beaf9SIlan Peer 2407174beb6SJohannes Berg if (!iwl_trans_grab_nic_access(fwrt->trans, &flags)) 2417174beb6SJohannes Berg return; 2427174beb6SJohannes Berg 243*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RXF)) { 2447174beb6SJohannes Berg /* Pull RXF1 */ 245520f03eaSShahar S Matityahu iwl_fwrt_dump_rxf(fwrt, dump_data, 246520f03eaSShahar S Matityahu cfg->lmac[0].rxfifo1_size, 0, 0); 2477174beb6SJohannes Berg /* Pull RXF2 */ 2487174beb6SJohannes Berg iwl_fwrt_dump_rxf(fwrt, dump_data, cfg->rxfifo2_size, 2497174beb6SJohannes Berg RXF_DIFF_FROM_PREV, 1); 2507174beb6SJohannes Berg /* Pull LMAC2 RXF1 */ 2517174beb6SJohannes Berg if (fwrt->smem_cfg.num_lmacs > 1) 252520f03eaSShahar S Matityahu iwl_fwrt_dump_rxf(fwrt, dump_data, 253520f03eaSShahar S Matityahu cfg->lmac[1].rxfifo1_size, 2547174beb6SJohannes Berg LMAC2_PRPH_OFFSET, 2); 255520f03eaSShahar S Matityahu } 2567174beb6SJohannes Berg 257*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_TXF)) { 2587174beb6SJohannes Berg /* Pull TXF data from LMAC1 */ 2597174beb6SJohannes Berg for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; i++) { 2607174beb6SJohannes Berg /* Mark the number of TXF we're pulling now */ 2617174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, TXF_LARC_NUM, i); 262520f03eaSShahar S Matityahu iwl_fwrt_dump_txf(fwrt, dump_data, 263520f03eaSShahar S Matityahu cfg->lmac[0].txfifo_size[i], 0, i); 2647174beb6SJohannes Berg } 2657174beb6SJohannes Berg 2667174beb6SJohannes Berg /* Pull TXF data from LMAC2 */ 2677174beb6SJohannes Berg if (fwrt->smem_cfg.num_lmacs > 1) { 268520f03eaSShahar S Matityahu for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; 269520f03eaSShahar S Matityahu i++) { 2707174beb6SJohannes Berg /* Mark the number of TXF we're pulling now */ 2717174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, 272520f03eaSShahar S Matityahu TXF_LARC_NUM + 273520f03eaSShahar S Matityahu LMAC2_PRPH_OFFSET, i); 2747174beb6SJohannes Berg iwl_fwrt_dump_txf(fwrt, dump_data, 2757174beb6SJohannes Berg cfg->lmac[1].txfifo_size[i], 2767174beb6SJohannes Berg LMAC2_PRPH_OFFSET, 2777174beb6SJohannes Berg i + cfg->num_txfifo_entries); 2787174beb6SJohannes Berg } 2797174beb6SJohannes Berg } 280520f03eaSShahar S Matityahu } 2817174beb6SJohannes Berg 282*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_INTERNAL_TXF) && 283520f03eaSShahar S Matityahu fw_has_capa(&fwrt->fw->ucode_capa, 2847174beb6SJohannes Berg IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) { 2857174beb6SJohannes Berg /* Pull UMAC internal TXF data from all TXFs */ 2867174beb6SJohannes Berg for (i = 0; 2877174beb6SJohannes Berg i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size); 2887174beb6SJohannes Berg i++) { 2897174beb6SJohannes Berg fifo_hdr = (void *)(*dump_data)->data; 2907174beb6SJohannes Berg fifo_data = (void *)fifo_hdr->data; 2917174beb6SJohannes Berg fifo_len = fwrt->smem_cfg.internal_txfifo_size[i]; 2927174beb6SJohannes Berg 2937174beb6SJohannes Berg /* No need to try to read the data if the length is 0 */ 2947174beb6SJohannes Berg if (fifo_len == 0) 2957174beb6SJohannes Berg continue; 2967174beb6SJohannes Berg 2977174beb6SJohannes Berg /* Add a TLV for the internal FIFOs */ 2987174beb6SJohannes Berg (*dump_data)->type = 2997174beb6SJohannes Berg cpu_to_le32(IWL_FW_ERROR_DUMP_INTERNAL_TXF); 3007174beb6SJohannes Berg (*dump_data)->len = 3017174beb6SJohannes Berg cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); 3027174beb6SJohannes Berg 3037174beb6SJohannes Berg fifo_hdr->fifo_num = cpu_to_le32(i); 3047174beb6SJohannes Berg 3057174beb6SJohannes Berg /* Mark the number of TXF we're pulling now */ 3067174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, TXF_CPU2_NUM, i + 3077174beb6SJohannes Berg fwrt->smem_cfg.num_txfifo_entries); 3087174beb6SJohannes Berg 3097174beb6SJohannes Berg fifo_hdr->available_bytes = 3107174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 3117174beb6SJohannes Berg TXF_CPU2_FIFO_ITEM_CNT)); 3127174beb6SJohannes Berg fifo_hdr->wr_ptr = 3137174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 3147174beb6SJohannes Berg TXF_CPU2_WR_PTR)); 3157174beb6SJohannes Berg fifo_hdr->rd_ptr = 3167174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 3177174beb6SJohannes Berg TXF_CPU2_RD_PTR)); 3187174beb6SJohannes Berg fifo_hdr->fence_ptr = 3197174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 3207174beb6SJohannes Berg TXF_CPU2_FENCE_PTR)); 3217174beb6SJohannes Berg fifo_hdr->fence_mode = 3227174beb6SJohannes Berg cpu_to_le32(iwl_trans_read_prph(fwrt->trans, 3237174beb6SJohannes Berg TXF_CPU2_LOCK_FENCE)); 3247174beb6SJohannes Berg 3257174beb6SJohannes Berg /* Set TXF_CPU2_READ_MODIFY_ADDR to TXF_CPU2_WR_PTR */ 3267174beb6SJohannes Berg iwl_trans_write_prph(fwrt->trans, 3277174beb6SJohannes Berg TXF_CPU2_READ_MODIFY_ADDR, 3287174beb6SJohannes Berg TXF_CPU2_WR_PTR); 3297174beb6SJohannes Berg 3307174beb6SJohannes Berg /* Dummy-read to advance the read pointer to head */ 3317174beb6SJohannes Berg iwl_trans_read_prph(fwrt->trans, 3327174beb6SJohannes Berg TXF_CPU2_READ_MODIFY_DATA); 3337174beb6SJohannes Berg 3347174beb6SJohannes Berg /* Read FIFO */ 3357174beb6SJohannes Berg fifo_len /= sizeof(u32); /* Size in DWORDS */ 3367174beb6SJohannes Berg for (j = 0; j < fifo_len; j++) 3377174beb6SJohannes Berg fifo_data[j] = 3387174beb6SJohannes Berg iwl_trans_read_prph(fwrt->trans, 3397174beb6SJohannes Berg TXF_CPU2_READ_MODIFY_DATA); 3407174beb6SJohannes Berg *dump_data = iwl_fw_error_next_data(*dump_data); 3417174beb6SJohannes Berg } 3427174beb6SJohannes Berg } 3437174beb6SJohannes Berg 3447174beb6SJohannes Berg iwl_trans_release_nic_access(fwrt->trans, &flags); 3457174beb6SJohannes Berg } 3467174beb6SJohannes Berg 3477174beb6SJohannes Berg #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */ 3487174beb6SJohannes Berg #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */ 3497174beb6SJohannes Berg 3507174beb6SJohannes Berg struct iwl_prph_range { 3517174beb6SJohannes Berg u32 start, end; 3527174beb6SJohannes Berg }; 3537174beb6SJohannes Berg 3547174beb6SJohannes Berg static const struct iwl_prph_range iwl_prph_dump_addr_comm[] = { 3557174beb6SJohannes Berg { .start = 0x00a00000, .end = 0x00a00000 }, 3567174beb6SJohannes Berg { .start = 0x00a0000c, .end = 0x00a00024 }, 3577174beb6SJohannes Berg { .start = 0x00a0002c, .end = 0x00a0003c }, 3587174beb6SJohannes Berg { .start = 0x00a00410, .end = 0x00a00418 }, 3597174beb6SJohannes Berg { .start = 0x00a00420, .end = 0x00a00420 }, 3607174beb6SJohannes Berg { .start = 0x00a00428, .end = 0x00a00428 }, 3617174beb6SJohannes Berg { .start = 0x00a00430, .end = 0x00a0043c }, 3627174beb6SJohannes Berg { .start = 0x00a00444, .end = 0x00a00444 }, 3637174beb6SJohannes Berg { .start = 0x00a004c0, .end = 0x00a004cc }, 3647174beb6SJohannes Berg { .start = 0x00a004d8, .end = 0x00a004d8 }, 3657174beb6SJohannes Berg { .start = 0x00a004e0, .end = 0x00a004f0 }, 3667174beb6SJohannes Berg { .start = 0x00a00840, .end = 0x00a00840 }, 3677174beb6SJohannes Berg { .start = 0x00a00850, .end = 0x00a00858 }, 3687174beb6SJohannes Berg { .start = 0x00a01004, .end = 0x00a01008 }, 3697174beb6SJohannes Berg { .start = 0x00a01010, .end = 0x00a01010 }, 3707174beb6SJohannes Berg { .start = 0x00a01018, .end = 0x00a01018 }, 3717174beb6SJohannes Berg { .start = 0x00a01024, .end = 0x00a01024 }, 3727174beb6SJohannes Berg { .start = 0x00a0102c, .end = 0x00a01034 }, 3737174beb6SJohannes Berg { .start = 0x00a0103c, .end = 0x00a01040 }, 3747174beb6SJohannes Berg { .start = 0x00a01048, .end = 0x00a01094 }, 3757174beb6SJohannes Berg { .start = 0x00a01c00, .end = 0x00a01c20 }, 3767174beb6SJohannes Berg { .start = 0x00a01c58, .end = 0x00a01c58 }, 3777174beb6SJohannes Berg { .start = 0x00a01c7c, .end = 0x00a01c7c }, 3787174beb6SJohannes Berg { .start = 0x00a01c28, .end = 0x00a01c54 }, 3797174beb6SJohannes Berg { .start = 0x00a01c5c, .end = 0x00a01c5c }, 3807174beb6SJohannes Berg { .start = 0x00a01c60, .end = 0x00a01cdc }, 3817174beb6SJohannes Berg { .start = 0x00a01ce0, .end = 0x00a01d0c }, 3827174beb6SJohannes Berg { .start = 0x00a01d18, .end = 0x00a01d20 }, 3837174beb6SJohannes Berg { .start = 0x00a01d2c, .end = 0x00a01d30 }, 3847174beb6SJohannes Berg { .start = 0x00a01d40, .end = 0x00a01d5c }, 3857174beb6SJohannes Berg { .start = 0x00a01d80, .end = 0x00a01d80 }, 3867174beb6SJohannes Berg { .start = 0x00a01d98, .end = 0x00a01d9c }, 3877174beb6SJohannes Berg { .start = 0x00a01da8, .end = 0x00a01da8 }, 3887174beb6SJohannes Berg { .start = 0x00a01db8, .end = 0x00a01df4 }, 3897174beb6SJohannes Berg { .start = 0x00a01dc0, .end = 0x00a01dfc }, 3907174beb6SJohannes Berg { .start = 0x00a01e00, .end = 0x00a01e2c }, 3917174beb6SJohannes Berg { .start = 0x00a01e40, .end = 0x00a01e60 }, 3927174beb6SJohannes Berg { .start = 0x00a01e68, .end = 0x00a01e6c }, 3937174beb6SJohannes Berg { .start = 0x00a01e74, .end = 0x00a01e74 }, 3947174beb6SJohannes Berg { .start = 0x00a01e84, .end = 0x00a01e90 }, 3957174beb6SJohannes Berg { .start = 0x00a01e9c, .end = 0x00a01ec4 }, 3967174beb6SJohannes Berg { .start = 0x00a01ed0, .end = 0x00a01ee0 }, 3977174beb6SJohannes Berg { .start = 0x00a01f00, .end = 0x00a01f1c }, 3987174beb6SJohannes Berg { .start = 0x00a01f44, .end = 0x00a01ffc }, 3997174beb6SJohannes Berg { .start = 0x00a02000, .end = 0x00a02048 }, 4007174beb6SJohannes Berg { .start = 0x00a02068, .end = 0x00a020f0 }, 4017174beb6SJohannes Berg { .start = 0x00a02100, .end = 0x00a02118 }, 4027174beb6SJohannes Berg { .start = 0x00a02140, .end = 0x00a0214c }, 4037174beb6SJohannes Berg { .start = 0x00a02168, .end = 0x00a0218c }, 4047174beb6SJohannes Berg { .start = 0x00a021c0, .end = 0x00a021c0 }, 4057174beb6SJohannes Berg { .start = 0x00a02400, .end = 0x00a02410 }, 4067174beb6SJohannes Berg { .start = 0x00a02418, .end = 0x00a02420 }, 4077174beb6SJohannes Berg { .start = 0x00a02428, .end = 0x00a0242c }, 4087174beb6SJohannes Berg { .start = 0x00a02434, .end = 0x00a02434 }, 4097174beb6SJohannes Berg { .start = 0x00a02440, .end = 0x00a02460 }, 4107174beb6SJohannes Berg { .start = 0x00a02468, .end = 0x00a024b0 }, 4117174beb6SJohannes Berg { .start = 0x00a024c8, .end = 0x00a024cc }, 4127174beb6SJohannes Berg { .start = 0x00a02500, .end = 0x00a02504 }, 4137174beb6SJohannes Berg { .start = 0x00a0250c, .end = 0x00a02510 }, 4147174beb6SJohannes Berg { .start = 0x00a02540, .end = 0x00a02554 }, 4157174beb6SJohannes Berg { .start = 0x00a02580, .end = 0x00a025f4 }, 4167174beb6SJohannes Berg { .start = 0x00a02600, .end = 0x00a0260c }, 4177174beb6SJohannes Berg { .start = 0x00a02648, .end = 0x00a02650 }, 4187174beb6SJohannes Berg { .start = 0x00a02680, .end = 0x00a02680 }, 4197174beb6SJohannes Berg { .start = 0x00a026c0, .end = 0x00a026d0 }, 4207174beb6SJohannes Berg { .start = 0x00a02700, .end = 0x00a0270c }, 4217174beb6SJohannes Berg { .start = 0x00a02804, .end = 0x00a02804 }, 4227174beb6SJohannes Berg { .start = 0x00a02818, .end = 0x00a0281c }, 4237174beb6SJohannes Berg { .start = 0x00a02c00, .end = 0x00a02db4 }, 4247174beb6SJohannes Berg { .start = 0x00a02df4, .end = 0x00a02fb0 }, 4257174beb6SJohannes Berg { .start = 0x00a03000, .end = 0x00a03014 }, 4267174beb6SJohannes Berg { .start = 0x00a0301c, .end = 0x00a0302c }, 4277174beb6SJohannes Berg { .start = 0x00a03034, .end = 0x00a03038 }, 4287174beb6SJohannes Berg { .start = 0x00a03040, .end = 0x00a03048 }, 4297174beb6SJohannes Berg { .start = 0x00a03060, .end = 0x00a03068 }, 4307174beb6SJohannes Berg { .start = 0x00a03070, .end = 0x00a03074 }, 4317174beb6SJohannes Berg { .start = 0x00a0307c, .end = 0x00a0307c }, 4327174beb6SJohannes Berg { .start = 0x00a03080, .end = 0x00a03084 }, 4337174beb6SJohannes Berg { .start = 0x00a0308c, .end = 0x00a03090 }, 4347174beb6SJohannes Berg { .start = 0x00a03098, .end = 0x00a03098 }, 4357174beb6SJohannes Berg { .start = 0x00a030a0, .end = 0x00a030a0 }, 4367174beb6SJohannes Berg { .start = 0x00a030a8, .end = 0x00a030b4 }, 4377174beb6SJohannes Berg { .start = 0x00a030bc, .end = 0x00a030bc }, 4387174beb6SJohannes Berg { .start = 0x00a030c0, .end = 0x00a0312c }, 4397174beb6SJohannes Berg { .start = 0x00a03c00, .end = 0x00a03c5c }, 4407174beb6SJohannes Berg { .start = 0x00a04400, .end = 0x00a04454 }, 4417174beb6SJohannes Berg { .start = 0x00a04460, .end = 0x00a04474 }, 4427174beb6SJohannes Berg { .start = 0x00a044c0, .end = 0x00a044ec }, 4437174beb6SJohannes Berg { .start = 0x00a04500, .end = 0x00a04504 }, 4447174beb6SJohannes Berg { .start = 0x00a04510, .end = 0x00a04538 }, 4457174beb6SJohannes Berg { .start = 0x00a04540, .end = 0x00a04548 }, 4467174beb6SJohannes Berg { .start = 0x00a04560, .end = 0x00a0457c }, 4477174beb6SJohannes Berg { .start = 0x00a04590, .end = 0x00a04598 }, 4487174beb6SJohannes Berg { .start = 0x00a045c0, .end = 0x00a045f4 }, 4497174beb6SJohannes Berg }; 4507174beb6SJohannes Berg 4517174beb6SJohannes Berg static const struct iwl_prph_range iwl_prph_dump_addr_9000[] = { 4527174beb6SJohannes Berg { .start = 0x00a05c00, .end = 0x00a05c18 }, 4537174beb6SJohannes Berg { .start = 0x00a05400, .end = 0x00a056e8 }, 4547174beb6SJohannes Berg { .start = 0x00a08000, .end = 0x00a098bc }, 4557174beb6SJohannes Berg { .start = 0x00a02400, .end = 0x00a02758 }, 4567174beb6SJohannes Berg }; 4577174beb6SJohannes Berg 458ea7c2bfdSJohannes Berg static void iwl_read_prph_block(struct iwl_trans *trans, u32 start, 4597174beb6SJohannes Berg u32 len_bytes, __le32 *data) 4607174beb6SJohannes Berg { 4617174beb6SJohannes Berg u32 i; 4627174beb6SJohannes Berg 4637174beb6SJohannes Berg for (i = 0; i < len_bytes; i += 4) 4647174beb6SJohannes Berg *data++ = cpu_to_le32(iwl_read_prph_no_grab(trans, start + i)); 4657174beb6SJohannes Berg } 4667174beb6SJohannes Berg 4677174beb6SJohannes Berg static void iwl_dump_prph(struct iwl_trans *trans, 4687174beb6SJohannes Berg struct iwl_fw_error_dump_data **data, 4697174beb6SJohannes Berg const struct iwl_prph_range *iwl_prph_dump_addr, 4707174beb6SJohannes Berg u32 range_len) 4717174beb6SJohannes Berg { 4727174beb6SJohannes Berg struct iwl_fw_error_dump_prph *prph; 4737174beb6SJohannes Berg unsigned long flags; 4747174beb6SJohannes Berg u32 i; 4757174beb6SJohannes Berg 476b88beaf9SIlan Peer IWL_DEBUG_INFO(trans, "WRT PRPH dump\n"); 477b88beaf9SIlan Peer 4787174beb6SJohannes Berg if (!iwl_trans_grab_nic_access(trans, &flags)) 4797174beb6SJohannes Berg return; 4807174beb6SJohannes Berg 4817174beb6SJohannes Berg for (i = 0; i < range_len; i++) { 4827174beb6SJohannes Berg /* The range includes both boundaries */ 4837174beb6SJohannes Berg int num_bytes_in_chunk = iwl_prph_dump_addr[i].end - 4847174beb6SJohannes Berg iwl_prph_dump_addr[i].start + 4; 4857174beb6SJohannes Berg 4867174beb6SJohannes Berg (*data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PRPH); 4877174beb6SJohannes Berg (*data)->len = cpu_to_le32(sizeof(*prph) + 4887174beb6SJohannes Berg num_bytes_in_chunk); 4897174beb6SJohannes Berg prph = (void *)(*data)->data; 4907174beb6SJohannes Berg prph->prph_start = cpu_to_le32(iwl_prph_dump_addr[i].start); 4917174beb6SJohannes Berg 492ea7c2bfdSJohannes Berg iwl_read_prph_block(trans, iwl_prph_dump_addr[i].start, 4937174beb6SJohannes Berg /* our range is inclusive, hence + 4 */ 4947174beb6SJohannes Berg iwl_prph_dump_addr[i].end - 4957174beb6SJohannes Berg iwl_prph_dump_addr[i].start + 4, 4967174beb6SJohannes Berg (void *)prph->data); 4977174beb6SJohannes Berg 4987174beb6SJohannes Berg *data = iwl_fw_error_next_data(*data); 4997174beb6SJohannes Berg } 5007174beb6SJohannes Berg 5017174beb6SJohannes Berg iwl_trans_release_nic_access(trans, &flags); 5027174beb6SJohannes Berg } 5037174beb6SJohannes Berg 5047174beb6SJohannes Berg /* 5057174beb6SJohannes Berg * alloc_sgtable - allocates scallerlist table in the given size, 5067174beb6SJohannes Berg * fills it with pages and returns it 5077174beb6SJohannes Berg * @size: the size (in bytes) of the table 5087174beb6SJohannes Berg */ 5097174beb6SJohannes Berg static struct scatterlist *alloc_sgtable(int size) 5107174beb6SJohannes Berg { 5117174beb6SJohannes Berg int alloc_size, nents, i; 5127174beb6SJohannes Berg struct page *new_page; 5137174beb6SJohannes Berg struct scatterlist *iter; 5147174beb6SJohannes Berg struct scatterlist *table; 5157174beb6SJohannes Berg 5167174beb6SJohannes Berg nents = DIV_ROUND_UP(size, PAGE_SIZE); 5177174beb6SJohannes Berg table = kcalloc(nents, sizeof(*table), GFP_KERNEL); 5187174beb6SJohannes Berg if (!table) 5197174beb6SJohannes Berg return NULL; 5207174beb6SJohannes Berg sg_init_table(table, nents); 5217174beb6SJohannes Berg iter = table; 5227174beb6SJohannes Berg for_each_sg(table, iter, sg_nents(table), i) { 5237174beb6SJohannes Berg new_page = alloc_page(GFP_KERNEL); 5247174beb6SJohannes Berg if (!new_page) { 5257174beb6SJohannes Berg /* release all previous allocated pages in the table */ 5267174beb6SJohannes Berg iter = table; 5277174beb6SJohannes Berg for_each_sg(table, iter, sg_nents(table), i) { 5287174beb6SJohannes Berg new_page = sg_page(iter); 5297174beb6SJohannes Berg if (new_page) 5307174beb6SJohannes Berg __free_page(new_page); 5317174beb6SJohannes Berg } 5327174beb6SJohannes Berg return NULL; 5337174beb6SJohannes Berg } 5347174beb6SJohannes Berg alloc_size = min_t(int, size, PAGE_SIZE); 5357174beb6SJohannes Berg size -= PAGE_SIZE; 5367174beb6SJohannes Berg sg_set_page(iter, new_page, alloc_size, 0); 5377174beb6SJohannes Berg } 5387174beb6SJohannes Berg return table; 5397174beb6SJohannes Berg } 5407174beb6SJohannes Berg 541da752717SShahar S Matityahu static int iwl_fw_get_prph_len(struct iwl_fw_runtime *fwrt) 542da752717SShahar S Matityahu { 543da752717SShahar S Matityahu u32 prph_len = 0; 544da752717SShahar S Matityahu int i; 545da752717SShahar S Matityahu 546da752717SShahar S Matityahu for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr_comm); 547da752717SShahar S Matityahu i++) { 548da752717SShahar S Matityahu /* The range includes both boundaries */ 549da752717SShahar S Matityahu int num_bytes_in_chunk = 550da752717SShahar S Matityahu iwl_prph_dump_addr_comm[i].end - 551da752717SShahar S Matityahu iwl_prph_dump_addr_comm[i].start + 4; 552da752717SShahar S Matityahu 553da752717SShahar S Matityahu prph_len += sizeof(struct iwl_fw_error_dump_data) + 554da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_prph) + 555da752717SShahar S Matityahu num_bytes_in_chunk; 556da752717SShahar S Matityahu } 557da752717SShahar S Matityahu 558da752717SShahar S Matityahu if (fwrt->trans->cfg->mq_rx_supported) { 559da752717SShahar S Matityahu for (i = 0; i < 560da752717SShahar S Matityahu ARRAY_SIZE(iwl_prph_dump_addr_9000); i++) { 561da752717SShahar S Matityahu /* The range includes both boundaries */ 562da752717SShahar S Matityahu int num_bytes_in_chunk = 563da752717SShahar S Matityahu iwl_prph_dump_addr_9000[i].end - 564da752717SShahar S Matityahu iwl_prph_dump_addr_9000[i].start + 4; 565da752717SShahar S Matityahu 566da752717SShahar S Matityahu prph_len += sizeof(struct iwl_fw_error_dump_data) + 567da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_prph) + 568da752717SShahar S Matityahu num_bytes_in_chunk; 569da752717SShahar S Matityahu } 570da752717SShahar S Matityahu } 571da752717SShahar S Matityahu return prph_len; 572da752717SShahar S Matityahu } 573da752717SShahar S Matityahu 574da752717SShahar S Matityahu static void iwl_fw_dump_mem(struct iwl_fw_runtime *fwrt, 575da752717SShahar S Matityahu struct iwl_fw_error_dump_data **dump_data, 576da752717SShahar S Matityahu u32 sram_len, u32 sram_ofs, u32 smem_len, 577da752717SShahar S Matityahu u32 sram2_len) 578da752717SShahar S Matityahu { 579*17b809c9SSara Sharon const struct iwl_fw_dbg_mem_seg_tlv *fw_dbg_mem = fwrt->fw->dbg.mem_tlv; 580da752717SShahar S Matityahu struct iwl_fw_error_dump_mem *dump_mem; 581da752717SShahar S Matityahu int i; 582da752717SShahar S Matityahu 583*17b809c9SSara Sharon if (!fwrt->fw->dbg.n_mem_tlv) { 584da752717SShahar S Matityahu (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); 585da752717SShahar S Matityahu (*dump_data)->len = cpu_to_le32(sram_len + sizeof(*dump_mem)); 586da752717SShahar S Matityahu dump_mem = (void *)(*dump_data)->data; 587da752717SShahar S Matityahu dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); 588da752717SShahar S Matityahu dump_mem->offset = cpu_to_le32(sram_ofs); 589da752717SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, sram_ofs, dump_mem->data, 590da752717SShahar S Matityahu sram_len); 591da752717SShahar S Matityahu *dump_data = iwl_fw_error_next_data(*dump_data); 592da752717SShahar S Matityahu } 593da752717SShahar S Matityahu 594*17b809c9SSara Sharon for (i = 0; i < fwrt->fw->dbg.n_mem_tlv; i++) { 595da752717SShahar S Matityahu u32 len = le32_to_cpu(fw_dbg_mem[i].len); 596da752717SShahar S Matityahu u32 ofs = le32_to_cpu(fw_dbg_mem[i].ofs); 597da752717SShahar S Matityahu 598da752717SShahar S Matityahu (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); 599da752717SShahar S Matityahu (*dump_data)->len = cpu_to_le32(len + sizeof(*dump_mem)); 600da752717SShahar S Matityahu dump_mem = (void *)(*dump_data)->data; 601da752717SShahar S Matityahu dump_mem->type = fw_dbg_mem[i].data_type; 602da752717SShahar S Matityahu dump_mem->offset = cpu_to_le32(ofs); 603da752717SShahar S Matityahu 604da752717SShahar S Matityahu IWL_DEBUG_INFO(fwrt, "WRT memory dump. Type=%u\n", 605da752717SShahar S Matityahu dump_mem->type); 606da752717SShahar S Matityahu 607da752717SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, ofs, dump_mem->data, len); 608da752717SShahar S Matityahu *dump_data = iwl_fw_error_next_data(*dump_data); 609da752717SShahar S Matityahu } 610da752717SShahar S Matityahu 611da752717SShahar S Matityahu if (smem_len) { 612da752717SShahar S Matityahu IWL_DEBUG_INFO(fwrt, "WRT SMEM dump\n"); 613da752717SShahar S Matityahu (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); 614da752717SShahar S Matityahu (*dump_data)->len = cpu_to_le32(smem_len + sizeof(*dump_mem)); 615da752717SShahar S Matityahu dump_mem = (void *)(*dump_data)->data; 616da752717SShahar S Matityahu dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM); 617da752717SShahar S Matityahu dump_mem->offset = cpu_to_le32(fwrt->trans->cfg->smem_offset); 618da752717SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, 619da752717SShahar S Matityahu fwrt->trans->cfg->smem_offset, 620da752717SShahar S Matityahu dump_mem->data, smem_len); 621da752717SShahar S Matityahu *dump_data = iwl_fw_error_next_data(*dump_data); 622da752717SShahar S Matityahu } 623da752717SShahar S Matityahu 624da752717SShahar S Matityahu if (sram2_len) { 625da752717SShahar S Matityahu IWL_DEBUG_INFO(fwrt, "WRT SRAM dump\n"); 626da752717SShahar S Matityahu (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); 627da752717SShahar S Matityahu (*dump_data)->len = cpu_to_le32(sram2_len + sizeof(*dump_mem)); 628da752717SShahar S Matityahu dump_mem = (void *)(*dump_data)->data; 629da752717SShahar S Matityahu dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); 630da752717SShahar S Matityahu dump_mem->offset = cpu_to_le32(fwrt->trans->cfg->dccm2_offset); 631da752717SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, 632da752717SShahar S Matityahu fwrt->trans->cfg->dccm2_offset, 633da752717SShahar S Matityahu dump_mem->data, sram2_len); 634da752717SShahar S Matityahu *dump_data = iwl_fw_error_next_data(*dump_data); 635da752717SShahar S Matityahu } 636da752717SShahar S Matityahu } 637da752717SShahar S Matityahu 6387174beb6SJohannes Berg void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt) 6397174beb6SJohannes Berg { 6407174beb6SJohannes Berg struct iwl_fw_error_dump_file *dump_file; 6417174beb6SJohannes Berg struct iwl_fw_error_dump_data *dump_data; 6427174beb6SJohannes Berg struct iwl_fw_error_dump_info *dump_info; 643ce27f005SGolan Ben-Ami struct iwl_fw_error_dump_smem_cfg *dump_smem_cfg; 6447174beb6SJohannes Berg struct iwl_fw_error_dump_trigger_desc *dump_trig; 6457174beb6SJohannes Berg struct iwl_fw_dump_ptrs *fw_error_dump; 6467174beb6SJohannes Berg struct scatterlist *sg_dump_data; 6477174beb6SJohannes Berg u32 sram_len, sram_ofs; 648*17b809c9SSara Sharon const struct iwl_fw_dbg_mem_seg_tlv *fw_dbg_mem = fwrt->fw->dbg.mem_tlv; 649ce27f005SGolan Ben-Ami struct iwl_fwrt_shared_mem_cfg *mem_cfg = &fwrt->smem_cfg; 6507174beb6SJohannes Berg u32 file_len, fifo_data_len = 0, prph_len = 0, radio_len = 0; 651*17b809c9SSara Sharon u32 smem_len = fwrt->fw->dbg.n_mem_tlv ? 0 : fwrt->trans->cfg->smem_len; 652*17b809c9SSara Sharon u32 sram2_len = fwrt->fw->dbg.n_mem_tlv ? 6537174beb6SJohannes Berg 0 : fwrt->trans->cfg->dccm2_len; 6547174beb6SJohannes Berg bool monitor_dump_only = false; 6557174beb6SJohannes Berg int i; 6567174beb6SJohannes Berg 657b88beaf9SIlan Peer IWL_DEBUG_INFO(fwrt, "WRT dump start\n"); 658b88beaf9SIlan Peer 6597174beb6SJohannes Berg /* there's no point in fw dump if the bus is dead */ 6607174beb6SJohannes Berg if (test_bit(STATUS_TRANS_DEAD, &fwrt->trans->status)) { 6617174beb6SJohannes Berg IWL_ERR(fwrt, "Skip fw error dump since bus is dead\n"); 6627174beb6SJohannes Berg goto out; 6637174beb6SJohannes Berg } 6647174beb6SJohannes Berg 6657174beb6SJohannes Berg if (fwrt->dump.trig && 6667174beb6SJohannes Berg fwrt->dump.trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY) 6677174beb6SJohannes Berg monitor_dump_only = true; 6687174beb6SJohannes Berg 6697174beb6SJohannes Berg fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL); 6707174beb6SJohannes Berg if (!fw_error_dump) 6717174beb6SJohannes Berg goto out; 6727174beb6SJohannes Berg 6737174beb6SJohannes Berg /* SRAM - include stack CCM if driver knows the values for it */ 6747174beb6SJohannes Berg if (!fwrt->trans->cfg->dccm_offset || !fwrt->trans->cfg->dccm_len) { 6757174beb6SJohannes Berg const struct fw_img *img; 6767174beb6SJohannes Berg 6777174beb6SJohannes Berg img = &fwrt->fw->img[fwrt->cur_fw_img]; 6787174beb6SJohannes Berg sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 6797174beb6SJohannes Berg sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; 6807174beb6SJohannes Berg } else { 6817174beb6SJohannes Berg sram_ofs = fwrt->trans->cfg->dccm_offset; 6827174beb6SJohannes Berg sram_len = fwrt->trans->cfg->dccm_len; 6837174beb6SJohannes Berg } 6847174beb6SJohannes Berg 6857174beb6SJohannes Berg /* reading RXF/TXF sizes */ 6867174beb6SJohannes Berg if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status)) { 6877174beb6SJohannes Berg fifo_data_len = 0; 6887174beb6SJohannes Berg 689*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RXF)) { 690520f03eaSShahar S Matityahu 6917174beb6SJohannes Berg /* Count RXF2 size */ 6927174beb6SJohannes Berg if (mem_cfg->rxfifo2_size) { 6937174beb6SJohannes Berg /* Add header info */ 694520f03eaSShahar S Matityahu fifo_data_len += 695520f03eaSShahar S Matityahu mem_cfg->rxfifo2_size + 6967174beb6SJohannes Berg sizeof(*dump_data) + 6977174beb6SJohannes Berg sizeof(struct iwl_fw_error_dump_fifo); 6987174beb6SJohannes Berg } 6997174beb6SJohannes Berg 7007174beb6SJohannes Berg /* Count RXF1 sizes */ 7017174beb6SJohannes Berg for (i = 0; i < mem_cfg->num_lmacs; i++) { 7027174beb6SJohannes Berg if (!mem_cfg->lmac[i].rxfifo1_size) 7037174beb6SJohannes Berg continue; 7047174beb6SJohannes Berg 7057174beb6SJohannes Berg /* Add header info */ 706520f03eaSShahar S Matityahu fifo_data_len += 707520f03eaSShahar S Matityahu mem_cfg->lmac[i].rxfifo1_size + 7087174beb6SJohannes Berg sizeof(*dump_data) + 7097174beb6SJohannes Berg sizeof(struct iwl_fw_error_dump_fifo); 7107174beb6SJohannes Berg } 711520f03eaSShahar S Matityahu } 712520f03eaSShahar S Matityahu 713*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_TXF)) { 714520f03eaSShahar S Matityahu size_t fifo_const_len = sizeof(*dump_data) + 715520f03eaSShahar S Matityahu sizeof(struct iwl_fw_error_dump_fifo); 7167174beb6SJohannes Berg 7177174beb6SJohannes Berg /* Count TXF sizes */ 7187174beb6SJohannes Berg for (i = 0; i < mem_cfg->num_lmacs; i++) { 7197174beb6SJohannes Berg int j; 7207174beb6SJohannes Berg 721520f03eaSShahar S Matityahu for (j = 0; j < mem_cfg->num_txfifo_entries; 722520f03eaSShahar S Matityahu j++) { 7237174beb6SJohannes Berg if (!mem_cfg->lmac[i].txfifo_size[j]) 7247174beb6SJohannes Berg continue; 7257174beb6SJohannes Berg 7267174beb6SJohannes Berg /* Add header info */ 7277174beb6SJohannes Berg fifo_data_len += 728520f03eaSShahar S Matityahu fifo_const_len + 729520f03eaSShahar S Matityahu mem_cfg->lmac[i].txfifo_size[j]; 730520f03eaSShahar S Matityahu } 7317174beb6SJohannes Berg } 7327174beb6SJohannes Berg } 7337174beb6SJohannes Berg 734*17b809c9SSara Sharon if ((fwrt->fw->dbg.dump_mask & 735520f03eaSShahar S Matityahu BIT(IWL_FW_ERROR_DUMP_INTERNAL_TXF)) && 736520f03eaSShahar S Matityahu fw_has_capa(&fwrt->fw->ucode_capa, 7377174beb6SJohannes Berg IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) { 7387174beb6SJohannes Berg for (i = 0; 7397174beb6SJohannes Berg i < ARRAY_SIZE(mem_cfg->internal_txfifo_size); 7407174beb6SJohannes Berg i++) { 7417174beb6SJohannes Berg if (!mem_cfg->internal_txfifo_size[i]) 7427174beb6SJohannes Berg continue; 7437174beb6SJohannes Berg 7447174beb6SJohannes Berg /* Add header info */ 7457174beb6SJohannes Berg fifo_data_len += 7467174beb6SJohannes Berg mem_cfg->internal_txfifo_size[i] + 7477174beb6SJohannes Berg sizeof(*dump_data) + 7487174beb6SJohannes Berg sizeof(struct iwl_fw_error_dump_fifo); 7497174beb6SJohannes Berg } 7507174beb6SJohannes Berg } 7517174beb6SJohannes Berg 7527174beb6SJohannes Berg /* Make room for PRPH registers */ 753520f03eaSShahar S Matityahu if (!fwrt->trans->cfg->gen2 && 754*17b809c9SSara Sharon fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PRPH)) 755da752717SShahar S Matityahu prph_len += iwl_fw_get_prph_len(fwrt); 7567174beb6SJohannes Berg 757520f03eaSShahar S Matityahu if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000 && 758*17b809c9SSara Sharon fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RADIO_REG)) 7597174beb6SJohannes Berg radio_len = sizeof(*dump_data) + RADIO_REG_MAX_READ; 7607174beb6SJohannes Berg } 7617174beb6SJohannes Berg 7627174beb6SJohannes Berg file_len = sizeof(*dump_file) + 7637174beb6SJohannes Berg fifo_data_len + 7647174beb6SJohannes Berg prph_len + 765520f03eaSShahar S Matityahu radio_len; 7667174beb6SJohannes Berg 767*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_DEV_FW_INFO)) 768520f03eaSShahar S Matityahu file_len += sizeof(*dump_data) + sizeof(*dump_info); 769*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM_CFG)) 770520f03eaSShahar S Matityahu file_len += sizeof(*dump_data) + sizeof(*dump_smem_cfg); 771520f03eaSShahar S Matityahu 772*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM)) { 7737174beb6SJohannes Berg /* Make room for the SMEM, if it exists */ 7747174beb6SJohannes Berg if (smem_len) 775da752717SShahar S Matityahu file_len += sizeof(*dump_data) + smem_len + 776da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_mem); 7777174beb6SJohannes Berg 7787174beb6SJohannes Berg /* Make room for the secondary SRAM, if it exists */ 7797174beb6SJohannes Berg if (sram2_len) 780da752717SShahar S Matityahu file_len += sizeof(*dump_data) + sram2_len + 781da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_mem); 7827174beb6SJohannes Berg 7837174beb6SJohannes Berg /* Make room for MEM segments */ 784*17b809c9SSara Sharon for (i = 0; i < fwrt->fw->dbg.n_mem_tlv; i++) { 785da752717SShahar S Matityahu file_len += sizeof(*dump_data) + 786da752717SShahar S Matityahu le32_to_cpu(fw_dbg_mem[i].len) + 787da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_mem); 7887174beb6SJohannes Berg } 789520f03eaSShahar S Matityahu } 7907174beb6SJohannes Berg 7917174beb6SJohannes Berg /* Make room for fw's virtual image pages, if it exists */ 792*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING) && 793520f03eaSShahar S Matityahu !fwrt->trans->cfg->gen2 && 7947174beb6SJohannes Berg fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size && 7957174beb6SJohannes Berg fwrt->fw_paging_db[0].fw_paging_block) 7967174beb6SJohannes Berg file_len += fwrt->num_of_paging_blk * 7977174beb6SJohannes Berg (sizeof(*dump_data) + 7987174beb6SJohannes Berg sizeof(struct iwl_fw_error_dump_paging) + 7997174beb6SJohannes Berg PAGING_BLOCK_SIZE); 8007174beb6SJohannes Berg 8012d8c2615SShahar S Matityahu if (iwl_fw_dbg_is_d3_debug_enabled(fwrt) && fwrt->dump.d3_debug_data) { 8022d8c2615SShahar S Matityahu file_len += sizeof(*dump_data) + 8032d8c2615SShahar S Matityahu fwrt->trans->cfg->d3_debug_data_length * 2; 8042d8c2615SShahar S Matityahu } 8052d8c2615SShahar S Matityahu 8067174beb6SJohannes Berg /* If we only want a monitor dump, reset the file length */ 8077174beb6SJohannes Berg if (monitor_dump_only) { 808ce27f005SGolan Ben-Ami file_len = sizeof(*dump_file) + sizeof(*dump_data) * 2 + 809ce27f005SGolan Ben-Ami sizeof(*dump_info) + sizeof(*dump_smem_cfg); 8107174beb6SJohannes Berg } 8117174beb6SJohannes Berg 812*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_ERROR_INFO) && 813520f03eaSShahar S Matityahu fwrt->dump.desc) 8147174beb6SJohannes Berg file_len += sizeof(*dump_data) + sizeof(*dump_trig) + 8157174beb6SJohannes Berg fwrt->dump.desc->len; 8167174beb6SJohannes Berg 817*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM) && 818*17b809c9SSara Sharon !fwrt->fw->dbg.n_mem_tlv) 819da752717SShahar S Matityahu file_len += sizeof(*dump_data) + sram_len + 820da752717SShahar S Matityahu sizeof(struct iwl_fw_error_dump_mem); 8217174beb6SJohannes Berg 8227174beb6SJohannes Berg dump_file = vzalloc(file_len); 8237174beb6SJohannes Berg if (!dump_file) { 8247174beb6SJohannes Berg kfree(fw_error_dump); 8257174beb6SJohannes Berg goto out; 8267174beb6SJohannes Berg } 8277174beb6SJohannes Berg 8287174beb6SJohannes Berg fw_error_dump->fwrt_ptr = dump_file; 8297174beb6SJohannes Berg 8307174beb6SJohannes Berg dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); 8317174beb6SJohannes Berg dump_data = (void *)dump_file->data; 8327174beb6SJohannes Berg 833*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_DEV_FW_INFO)) { 8347174beb6SJohannes Berg dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO); 8357174beb6SJohannes Berg dump_data->len = cpu_to_le32(sizeof(*dump_info)); 8367174beb6SJohannes Berg dump_info = (void *)dump_data->data; 8377174beb6SJohannes Berg dump_info->device_family = 838520f03eaSShahar S Matityahu fwrt->trans->cfg->device_family == 839520f03eaSShahar S Matityahu IWL_DEVICE_FAMILY_7000 ? 8407174beb6SJohannes Berg cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) : 8417174beb6SJohannes Berg cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8); 842520f03eaSShahar S Matityahu dump_info->hw_step = 843520f03eaSShahar S Matityahu cpu_to_le32(CSR_HW_REV_STEP(fwrt->trans->hw_rev)); 8447174beb6SJohannes Berg memcpy(dump_info->fw_human_readable, fwrt->fw->human_readable, 8457174beb6SJohannes Berg sizeof(dump_info->fw_human_readable)); 8467174beb6SJohannes Berg strncpy(dump_info->dev_human_readable, fwrt->trans->cfg->name, 847520f03eaSShahar S Matityahu sizeof(dump_info->dev_human_readable) - 1); 8487174beb6SJohannes Berg strncpy(dump_info->bus_human_readable, fwrt->dev->bus->name, 849520f03eaSShahar S Matityahu sizeof(dump_info->bus_human_readable) - 1); 8507174beb6SJohannes Berg 8517174beb6SJohannes Berg dump_data = iwl_fw_error_next_data(dump_data); 852520f03eaSShahar S Matityahu } 853ce27f005SGolan Ben-Ami 854*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM_CFG)) { 855ce27f005SGolan Ben-Ami /* Dump shared memory configuration */ 856ce27f005SGolan Ben-Ami dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_CFG); 857ce27f005SGolan Ben-Ami dump_data->len = cpu_to_le32(sizeof(*dump_smem_cfg)); 858ce27f005SGolan Ben-Ami dump_smem_cfg = (void *)dump_data->data; 859ce27f005SGolan Ben-Ami dump_smem_cfg->num_lmacs = cpu_to_le32(mem_cfg->num_lmacs); 860ce27f005SGolan Ben-Ami dump_smem_cfg->num_txfifo_entries = 861ce27f005SGolan Ben-Ami cpu_to_le32(mem_cfg->num_txfifo_entries); 862ce27f005SGolan Ben-Ami for (i = 0; i < MAX_NUM_LMAC; i++) { 863ce27f005SGolan Ben-Ami int j; 864520f03eaSShahar S Matityahu u32 *txf_size = mem_cfg->lmac[i].txfifo_size; 865ce27f005SGolan Ben-Ami 866ce27f005SGolan Ben-Ami for (j = 0; j < TX_FIFO_MAX_NUM; j++) 867ce27f005SGolan Ben-Ami dump_smem_cfg->lmac[i].txfifo_size[j] = 868520f03eaSShahar S Matityahu cpu_to_le32(txf_size[j]); 869ce27f005SGolan Ben-Ami dump_smem_cfg->lmac[i].rxfifo1_size = 870ce27f005SGolan Ben-Ami cpu_to_le32(mem_cfg->lmac[i].rxfifo1_size); 871ce27f005SGolan Ben-Ami } 872520f03eaSShahar S Matityahu dump_smem_cfg->rxfifo2_size = 873520f03eaSShahar S Matityahu cpu_to_le32(mem_cfg->rxfifo2_size); 874ce27f005SGolan Ben-Ami dump_smem_cfg->internal_txfifo_addr = 875ce27f005SGolan Ben-Ami cpu_to_le32(mem_cfg->internal_txfifo_addr); 876ce27f005SGolan Ben-Ami for (i = 0; i < TX_FIFO_INTERNAL_MAX_NUM; i++) { 877ce27f005SGolan Ben-Ami dump_smem_cfg->internal_txfifo_size[i] = 878ce27f005SGolan Ben-Ami cpu_to_le32(mem_cfg->internal_txfifo_size[i]); 879ce27f005SGolan Ben-Ami } 880ce27f005SGolan Ben-Ami 881ce27f005SGolan Ben-Ami dump_data = iwl_fw_error_next_data(dump_data); 882520f03eaSShahar S Matityahu } 883ce27f005SGolan Ben-Ami 8847174beb6SJohannes Berg /* We only dump the FIFOs if the FW is in error state */ 88579f25b10SEmmanuel Grumbach if (fifo_data_len) { 8867174beb6SJohannes Berg iwl_fw_dump_fifos(fwrt, &dump_data); 8877174beb6SJohannes Berg if (radio_len) 8887174beb6SJohannes Berg iwl_read_radio_regs(fwrt, &dump_data); 8897174beb6SJohannes Berg } 8907174beb6SJohannes Berg 891*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_ERROR_INFO) && 892520f03eaSShahar S Matityahu fwrt->dump.desc) { 8937174beb6SJohannes Berg dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO); 8947174beb6SJohannes Berg dump_data->len = cpu_to_le32(sizeof(*dump_trig) + 8957174beb6SJohannes Berg fwrt->dump.desc->len); 8967174beb6SJohannes Berg dump_trig = (void *)dump_data->data; 8977174beb6SJohannes Berg memcpy(dump_trig, &fwrt->dump.desc->trig_desc, 8987174beb6SJohannes Berg sizeof(*dump_trig) + fwrt->dump.desc->len); 8997174beb6SJohannes Berg 9007174beb6SJohannes Berg dump_data = iwl_fw_error_next_data(dump_data); 9017174beb6SJohannes Berg } 9027174beb6SJohannes Berg 9037174beb6SJohannes Berg /* In case we only want monitor dump, skip to dump trasport data */ 9047174beb6SJohannes Berg if (monitor_dump_only) 9057174beb6SJohannes Berg goto dump_trans_data; 9067174beb6SJohannes Berg 907*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM)) 908da752717SShahar S Matityahu iwl_fw_dump_mem(fwrt, &dump_data, sram_len, sram_ofs, smem_len, 909da752717SShahar S Matityahu sram2_len); 910da752717SShahar S Matityahu 9117174beb6SJohannes Berg 9122d8c2615SShahar S Matityahu if (iwl_fw_dbg_is_d3_debug_enabled(fwrt) && fwrt->dump.d3_debug_data) { 9132d8c2615SShahar S Matityahu u32 addr = fwrt->trans->cfg->d3_debug_data_base_addr; 9142d8c2615SShahar S Matityahu size_t data_size = fwrt->trans->cfg->d3_debug_data_length; 9152d8c2615SShahar S Matityahu 9162d8c2615SShahar S Matityahu dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_D3_DEBUG_DATA); 9172d8c2615SShahar S Matityahu dump_data->len = cpu_to_le32(data_size * 2); 9182d8c2615SShahar S Matityahu 919da752717SShahar S Matityahu memcpy(dump_data->data, fwrt->dump.d3_debug_data, data_size); 9202d8c2615SShahar S Matityahu 9212d8c2615SShahar S Matityahu kfree(fwrt->dump.d3_debug_data); 9222d8c2615SShahar S Matityahu fwrt->dump.d3_debug_data = NULL; 9232d8c2615SShahar S Matityahu 9242d8c2615SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, addr, 9252d8c2615SShahar S Matityahu dump_data->data + data_size, 9262d8c2615SShahar S Matityahu data_size); 9272d8c2615SShahar S Matityahu 9282d8c2615SShahar S Matityahu dump_data = iwl_fw_error_next_data(dump_data); 9292d8c2615SShahar S Matityahu } 9302d8c2615SShahar S Matityahu 9317174beb6SJohannes Berg /* Dump fw's virtual image */ 932*17b809c9SSara Sharon if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING) && 933520f03eaSShahar S Matityahu !fwrt->trans->cfg->gen2 && 9347174beb6SJohannes Berg fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size && 9357174beb6SJohannes Berg fwrt->fw_paging_db[0].fw_paging_block) { 936b88beaf9SIlan Peer IWL_DEBUG_INFO(fwrt, "WRT paging dump\n"); 9377174beb6SJohannes Berg for (i = 1; i < fwrt->num_of_paging_blk + 1; i++) { 9387174beb6SJohannes Berg struct iwl_fw_error_dump_paging *paging; 9397174beb6SJohannes Berg struct page *pages = 9407174beb6SJohannes Berg fwrt->fw_paging_db[i].fw_paging_block; 9417174beb6SJohannes Berg dma_addr_t addr = fwrt->fw_paging_db[i].fw_paging_phys; 9427174beb6SJohannes Berg 9437174beb6SJohannes Berg dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING); 9447174beb6SJohannes Berg dump_data->len = cpu_to_le32(sizeof(*paging) + 9457174beb6SJohannes Berg PAGING_BLOCK_SIZE); 9467174beb6SJohannes Berg paging = (void *)dump_data->data; 9477174beb6SJohannes Berg paging->index = cpu_to_le32(i); 9487174beb6SJohannes Berg dma_sync_single_for_cpu(fwrt->trans->dev, addr, 9497174beb6SJohannes Berg PAGING_BLOCK_SIZE, 9507174beb6SJohannes Berg DMA_BIDIRECTIONAL); 9517174beb6SJohannes Berg memcpy(paging->data, page_address(pages), 9527174beb6SJohannes Berg PAGING_BLOCK_SIZE); 9537174beb6SJohannes Berg dump_data = iwl_fw_error_next_data(dump_data); 9547174beb6SJohannes Berg } 9557174beb6SJohannes Berg } 9567174beb6SJohannes Berg 9577174beb6SJohannes Berg if (prph_len) { 9587174beb6SJohannes Berg iwl_dump_prph(fwrt->trans, &dump_data, 9597174beb6SJohannes Berg iwl_prph_dump_addr_comm, 9607174beb6SJohannes Berg ARRAY_SIZE(iwl_prph_dump_addr_comm)); 9617174beb6SJohannes Berg 9627174beb6SJohannes Berg if (fwrt->trans->cfg->mq_rx_supported) 9637174beb6SJohannes Berg iwl_dump_prph(fwrt->trans, &dump_data, 9647174beb6SJohannes Berg iwl_prph_dump_addr_9000, 9657174beb6SJohannes Berg ARRAY_SIZE(iwl_prph_dump_addr_9000)); 9667174beb6SJohannes Berg } 9677174beb6SJohannes Berg 9687174beb6SJohannes Berg dump_trans_data: 9697174beb6SJohannes Berg fw_error_dump->trans_ptr = iwl_trans_dump_data(fwrt->trans, 9707174beb6SJohannes Berg fwrt->dump.trig); 9717174beb6SJohannes Berg fw_error_dump->fwrt_len = file_len; 9727174beb6SJohannes Berg if (fw_error_dump->trans_ptr) 9737174beb6SJohannes Berg file_len += fw_error_dump->trans_ptr->len; 9747174beb6SJohannes Berg dump_file->file_len = cpu_to_le32(file_len); 9757174beb6SJohannes Berg 9767174beb6SJohannes Berg sg_dump_data = alloc_sgtable(file_len); 9777174beb6SJohannes Berg if (sg_dump_data) { 9787174beb6SJohannes Berg sg_pcopy_from_buffer(sg_dump_data, 9797174beb6SJohannes Berg sg_nents(sg_dump_data), 9807174beb6SJohannes Berg fw_error_dump->fwrt_ptr, 9817174beb6SJohannes Berg fw_error_dump->fwrt_len, 0); 9827174beb6SJohannes Berg if (fw_error_dump->trans_ptr) 9837174beb6SJohannes Berg sg_pcopy_from_buffer(sg_dump_data, 9847174beb6SJohannes Berg sg_nents(sg_dump_data), 9857174beb6SJohannes Berg fw_error_dump->trans_ptr->data, 9867174beb6SJohannes Berg fw_error_dump->trans_ptr->len, 9877174beb6SJohannes Berg fw_error_dump->fwrt_len); 9887174beb6SJohannes Berg dev_coredumpsg(fwrt->trans->dev, sg_dump_data, file_len, 9897174beb6SJohannes Berg GFP_KERNEL); 9907174beb6SJohannes Berg } 9917174beb6SJohannes Berg vfree(fw_error_dump->fwrt_ptr); 9927174beb6SJohannes Berg vfree(fw_error_dump->trans_ptr); 9937174beb6SJohannes Berg kfree(fw_error_dump); 9947174beb6SJohannes Berg 9957174beb6SJohannes Berg out: 9967174beb6SJohannes Berg iwl_fw_free_dump_desc(fwrt); 9977174beb6SJohannes Berg clear_bit(IWL_FWRT_STATUS_DUMPING, &fwrt->status); 998b88beaf9SIlan Peer IWL_DEBUG_INFO(fwrt, "WRT dump done\n"); 9997174beb6SJohannes Berg } 10007174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_fw_error_dump); 10017174beb6SJohannes Berg 10027174beb6SJohannes Berg const struct iwl_fw_dump_desc iwl_dump_desc_assert = { 10037174beb6SJohannes Berg .trig_desc = { 10047174beb6SJohannes Berg .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT), 10057174beb6SJohannes Berg }, 10067174beb6SJohannes Berg }; 10077174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_dump_desc_assert); 10087174beb6SJohannes Berg 10097174beb6SJohannes Berg int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt, 10107174beb6SJohannes Berg const struct iwl_fw_dump_desc *desc, 10117174beb6SJohannes Berg const struct iwl_fw_dbg_trigger_tlv *trigger) 10127174beb6SJohannes Berg { 10137174beb6SJohannes Berg unsigned int delay = 0; 10147174beb6SJohannes Berg 10157174beb6SJohannes Berg if (trigger) 10167174beb6SJohannes Berg delay = msecs_to_jiffies(le32_to_cpu(trigger->stop_delay)); 10177174beb6SJohannes Berg 1018dfd4b08cSLiad Kaufman /* 1019dfd4b08cSLiad Kaufman * If the loading of the FW completed successfully, the next step is to 1020dfd4b08cSLiad Kaufman * get the SMEM config data. Thus, if fwrt->smem_cfg.num_lmacs is non 1021dfd4b08cSLiad Kaufman * zero, the FW was already loaded successully. If the state is "NO_FW" 102284f26025SJohannes Berg * in such a case - exit, since FW may be dead. Otherwise, we 1023dfd4b08cSLiad Kaufman * can try to collect the data, since FW might just not be fully 1024dfd4b08cSLiad Kaufman * loaded (no "ALIVE" yet), and the debug data is accessible. 1025dfd4b08cSLiad Kaufman * 1026dfd4b08cSLiad Kaufman * Corner case: got the FW alive but crashed before getting the SMEM 1027dfd4b08cSLiad Kaufman * config. In such a case, due to HW access problems, we might 1028dfd4b08cSLiad Kaufman * collect garbage. 1029dfd4b08cSLiad Kaufman */ 103084f26025SJohannes Berg if (fwrt->trans->state == IWL_TRANS_NO_FW && 103184f26025SJohannes Berg fwrt->smem_cfg.num_lmacs) 10327174beb6SJohannes Berg return -EIO; 10337174beb6SJohannes Berg 10347174beb6SJohannes Berg if (test_and_set_bit(IWL_FWRT_STATUS_DUMPING, &fwrt->status)) 10357174beb6SJohannes Berg return -EBUSY; 10367174beb6SJohannes Berg 10377174beb6SJohannes Berg if (WARN_ON(fwrt->dump.desc)) 10387174beb6SJohannes Berg iwl_fw_free_dump_desc(fwrt); 10397174beb6SJohannes Berg 10407174beb6SJohannes Berg IWL_WARN(fwrt, "Collecting data: trigger %d fired.\n", 10417174beb6SJohannes Berg le32_to_cpu(desc->trig_desc.type)); 10427174beb6SJohannes Berg 10437174beb6SJohannes Berg fwrt->dump.desc = desc; 10447174beb6SJohannes Berg fwrt->dump.trig = trigger; 10457174beb6SJohannes Berg 10467174beb6SJohannes Berg schedule_delayed_work(&fwrt->dump.wk, delay); 10477174beb6SJohannes Berg 10487174beb6SJohannes Berg return 0; 10497174beb6SJohannes Berg } 10507174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect_desc); 10517174beb6SJohannes Berg 10527174beb6SJohannes Berg int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, 10537174beb6SJohannes Berg enum iwl_fw_dbg_trigger trig, 10547174beb6SJohannes Berg const char *str, size_t len, 10557174beb6SJohannes Berg const struct iwl_fw_dbg_trigger_tlv *trigger) 10567174beb6SJohannes Berg { 10577174beb6SJohannes Berg struct iwl_fw_dump_desc *desc; 10587174beb6SJohannes Berg 1059378c8931SShahar S Matityahu if (trigger && trigger->flags & IWL_FW_DBG_FORCE_RESTART) { 1060378c8931SShahar S Matityahu IWL_WARN(fwrt, "Force restart: trigger %d fired.\n", trig); 1061378c8931SShahar S Matityahu iwl_force_nmi(fwrt->trans); 1062378c8931SShahar S Matityahu return 0; 1063378c8931SShahar S Matityahu } 1064378c8931SShahar S Matityahu 10657174beb6SJohannes Berg desc = kzalloc(sizeof(*desc) + len, GFP_ATOMIC); 10667174beb6SJohannes Berg if (!desc) 10677174beb6SJohannes Berg return -ENOMEM; 10687174beb6SJohannes Berg 10697174beb6SJohannes Berg desc->len = len; 10707174beb6SJohannes Berg desc->trig_desc.type = cpu_to_le32(trig); 10717174beb6SJohannes Berg memcpy(desc->trig_desc.data, str, len); 10727174beb6SJohannes Berg 10737174beb6SJohannes Berg return iwl_fw_dbg_collect_desc(fwrt, desc, trigger); 10747174beb6SJohannes Berg } 10757174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect); 10767174beb6SJohannes Berg 10777174beb6SJohannes Berg int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt, 10787174beb6SJohannes Berg struct iwl_fw_dbg_trigger_tlv *trigger, 10797174beb6SJohannes Berg const char *fmt, ...) 10807174beb6SJohannes Berg { 10817174beb6SJohannes Berg u16 occurrences = le16_to_cpu(trigger->occurrences); 10827174beb6SJohannes Berg int ret, len = 0; 10837174beb6SJohannes Berg char buf[64]; 10847174beb6SJohannes Berg 10857174beb6SJohannes Berg if (!occurrences) 10867174beb6SJohannes Berg return 0; 10877174beb6SJohannes Berg 10887174beb6SJohannes Berg if (fmt) { 10897174beb6SJohannes Berg va_list ap; 10907174beb6SJohannes Berg 10917174beb6SJohannes Berg buf[sizeof(buf) - 1] = '\0'; 10927174beb6SJohannes Berg 10937174beb6SJohannes Berg va_start(ap, fmt); 10947174beb6SJohannes Berg vsnprintf(buf, sizeof(buf), fmt, ap); 10957174beb6SJohannes Berg va_end(ap); 10967174beb6SJohannes Berg 10977174beb6SJohannes Berg /* check for truncation */ 10987174beb6SJohannes Berg if (WARN_ON_ONCE(buf[sizeof(buf) - 1])) 10997174beb6SJohannes Berg buf[sizeof(buf) - 1] = '\0'; 11007174beb6SJohannes Berg 11017174beb6SJohannes Berg len = strlen(buf) + 1; 11027174beb6SJohannes Berg } 11037174beb6SJohannes Berg 11047174beb6SJohannes Berg ret = iwl_fw_dbg_collect(fwrt, le32_to_cpu(trigger->id), buf, len, 11057174beb6SJohannes Berg trigger); 11067174beb6SJohannes Berg 11077174beb6SJohannes Berg if (ret) 11087174beb6SJohannes Berg return ret; 11097174beb6SJohannes Berg 11107174beb6SJohannes Berg trigger->occurrences = cpu_to_le16(occurrences - 1); 11117174beb6SJohannes Berg return 0; 11127174beb6SJohannes Berg } 11137174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect_trig); 11147174beb6SJohannes Berg 11157174beb6SJohannes Berg int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 conf_id) 11167174beb6SJohannes Berg { 11177174beb6SJohannes Berg u8 *ptr; 11187174beb6SJohannes Berg int ret; 11197174beb6SJohannes Berg int i; 11207174beb6SJohannes Berg 1121*17b809c9SSara Sharon if (WARN_ONCE(conf_id >= ARRAY_SIZE(fwrt->fw->dbg.conf_tlv), 11227174beb6SJohannes Berg "Invalid configuration %d\n", conf_id)) 11237174beb6SJohannes Berg return -EINVAL; 11247174beb6SJohannes Berg 11257174beb6SJohannes Berg /* EARLY START - firmware's configuration is hard coded */ 1126*17b809c9SSara Sharon if ((!fwrt->fw->dbg.conf_tlv[conf_id] || 1127*17b809c9SSara Sharon !fwrt->fw->dbg.conf_tlv[conf_id]->num_of_hcmds) && 11287174beb6SJohannes Berg conf_id == FW_DBG_START_FROM_ALIVE) 11297174beb6SJohannes Berg return 0; 11307174beb6SJohannes Berg 1131*17b809c9SSara Sharon if (!fwrt->fw->dbg.conf_tlv[conf_id]) 11327174beb6SJohannes Berg return -EINVAL; 11337174beb6SJohannes Berg 11347174beb6SJohannes Berg if (fwrt->dump.conf != FW_DBG_INVALID) 11357174beb6SJohannes Berg IWL_WARN(fwrt, "FW already configured (%d) - re-configuring\n", 11367174beb6SJohannes Berg fwrt->dump.conf); 11377174beb6SJohannes Berg 11387174beb6SJohannes Berg /* Send all HCMDs for configuring the FW debug */ 1139*17b809c9SSara Sharon ptr = (void *)&fwrt->fw->dbg.conf_tlv[conf_id]->hcmd; 1140*17b809c9SSara Sharon for (i = 0; i < fwrt->fw->dbg.conf_tlv[conf_id]->num_of_hcmds; i++) { 11417174beb6SJohannes Berg struct iwl_fw_dbg_conf_hcmd *cmd = (void *)ptr; 11427174beb6SJohannes Berg struct iwl_host_cmd hcmd = { 11437174beb6SJohannes Berg .id = cmd->id, 11447174beb6SJohannes Berg .len = { le16_to_cpu(cmd->len), }, 11457174beb6SJohannes Berg .data = { cmd->data, }, 11467174beb6SJohannes Berg }; 11477174beb6SJohannes Berg 11487174beb6SJohannes Berg ret = iwl_trans_send_cmd(fwrt->trans, &hcmd); 11497174beb6SJohannes Berg if (ret) 11507174beb6SJohannes Berg return ret; 11517174beb6SJohannes Berg 11527174beb6SJohannes Berg ptr += sizeof(*cmd); 11537174beb6SJohannes Berg ptr += le16_to_cpu(cmd->len); 11547174beb6SJohannes Berg } 11557174beb6SJohannes Berg 11567174beb6SJohannes Berg fwrt->dump.conf = conf_id; 11577174beb6SJohannes Berg 11587174beb6SJohannes Berg return 0; 11597174beb6SJohannes Berg } 11607174beb6SJohannes Berg IWL_EXPORT_SYMBOL(iwl_fw_start_dbg_conf); 11617174beb6SJohannes Berg 11627174beb6SJohannes Berg void iwl_fw_error_dump_wk(struct work_struct *work) 11637174beb6SJohannes Berg { 11647174beb6SJohannes Berg struct iwl_fw_runtime *fwrt = 11657174beb6SJohannes Berg container_of(work, struct iwl_fw_runtime, dump.wk.work); 1166d25eec30SSara Sharon struct iwl_fw_dbg_params params = {0}; 11677174beb6SJohannes Berg 11687174beb6SJohannes Berg if (fwrt->ops && fwrt->ops->dump_start && 11697174beb6SJohannes Berg fwrt->ops->dump_start(fwrt->ops_ctx)) 11707174beb6SJohannes Berg return; 11717174beb6SJohannes Berg 11728745f12aSShaul Triebitz if (fwrt->ops && fwrt->ops->fw_running && 11738745f12aSShaul Triebitz !fwrt->ops->fw_running(fwrt->ops_ctx)) { 11748745f12aSShaul Triebitz IWL_ERR(fwrt, "Firmware not running - cannot dump error\n"); 11758745f12aSShaul Triebitz iwl_fw_free_dump_desc(fwrt); 11768745f12aSShaul Triebitz clear_bit(IWL_FWRT_STATUS_DUMPING, &fwrt->status); 11778745f12aSShaul Triebitz goto out; 11788745f12aSShaul Triebitz } 11798745f12aSShaul Triebitz 11805cfe79c8SSara Sharon iwl_fw_dbg_stop_recording(fwrt, ¶ms); 11817174beb6SJohannes Berg 11827174beb6SJohannes Berg iwl_fw_error_dump(fwrt); 11837174beb6SJohannes Berg 11847174beb6SJohannes Berg /* start recording again if the firmware is not crashed */ 11857174beb6SJohannes Berg if (!test_bit(STATUS_FW_ERROR, &fwrt->trans->status) && 1186*17b809c9SSara Sharon fwrt->fw->dbg.dest_tlv) { 11877174beb6SJohannes Berg /* wait before we collect the data till the DBGC stop */ 11887174beb6SJohannes Berg udelay(500); 11895cfe79c8SSara Sharon iwl_fw_dbg_restart_recording(fwrt, ¶ms); 11907174beb6SJohannes Berg } 11918745f12aSShaul Triebitz out: 11927174beb6SJohannes Berg if (fwrt->ops && fwrt->ops->dump_end) 11937174beb6SJohannes Berg fwrt->ops->dump_end(fwrt->ops_ctx); 11947174beb6SJohannes Berg } 11957174beb6SJohannes Berg 11962d8c2615SShahar S Matityahu void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt) 11972d8c2615SShahar S Matityahu { 11982d8c2615SShahar S Matityahu const struct iwl_cfg *cfg = fwrt->trans->cfg; 11992d8c2615SShahar S Matityahu 12002d8c2615SShahar S Matityahu if (!iwl_fw_dbg_is_d3_debug_enabled(fwrt)) 12012d8c2615SShahar S Matityahu return; 12022d8c2615SShahar S Matityahu 12032d8c2615SShahar S Matityahu if (!fwrt->dump.d3_debug_data) { 12042d8c2615SShahar S Matityahu fwrt->dump.d3_debug_data = kmalloc(cfg->d3_debug_data_length, 12052d8c2615SShahar S Matityahu GFP_KERNEL); 12062d8c2615SShahar S Matityahu if (!fwrt->dump.d3_debug_data) { 12072d8c2615SShahar S Matityahu IWL_ERR(fwrt, 12082d8c2615SShahar S Matityahu "failed to allocate memory for D3 debug data\n"); 12092d8c2615SShahar S Matityahu return; 12102d8c2615SShahar S Matityahu } 12112d8c2615SShahar S Matityahu } 12122d8c2615SShahar S Matityahu 12132d8c2615SShahar S Matityahu /* if the buffer holds previous debug data it is overwritten */ 12142d8c2615SShahar S Matityahu iwl_trans_read_mem_bytes(fwrt->trans, cfg->d3_debug_data_base_addr, 12152d8c2615SShahar S Matityahu fwrt->dump.d3_debug_data, 12162d8c2615SShahar S Matityahu cfg->d3_debug_data_length); 12172d8c2615SShahar S Matityahu } 12182d8c2615SShahar S Matityahu IWL_EXPORT_SYMBOL(iwl_fw_dbg_read_d3_debug_data); 1219