/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2020 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* The full GNU General Public License is included in this distribution
* in the file called COPYING.
*
* Contact Information:
* Intel Linux Wireless <linuxwifi@intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2020 Intel Corporation
* All rights reserved.
*
* 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 Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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
* OWNER 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.
*
*****************************************************************************/
#include <linux/devcoredump.h>
#include "iwl-drv.h"
#include "runtime.h"
#include "dbg.h"
#include "debugfs.h"
#include "iwl-io.h"
#include "iwl-prph.h"
#include "iwl-csr.h"
/**
* struct iwl_fw_dump_ptrs - set of pointers needed for the fw-error-dump
*
* @fwrt_ptr: pointer to the buffer coming from fwrt
* @trans_ptr: pointer to struct %iwl_trans_dump_data which contains the
* transport's data.
* @trans_len: length of the valid data in trans_ptr
* @fwrt_len: length of the valid data in fwrt_ptr
*/
struct iwl_fw_dump_ptrs {
struct iwl_trans_dump_data *trans_ptr;
void *fwrt_ptr;
u32 fwrt_len;
};
#define RADIO_REG_MAX_READ 0x2ad
static void iwl_read_radio_regs(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data)
{
u8 *pos = (void *)(*dump_data)->data;
unsigned long flags;
int i;
IWL_DEBUG_INFO(fwrt, "WRT radio registers dump\n");
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
return;
(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RADIO_REG);
(*dump_data)->len = cpu_to_le32(RADIO_REG_MAX_READ);
for (i = 0; i < RADIO_REG_MAX_READ; i++) {
u32 rd_cmd = RADIO_RSP_RD_CMD;
rd_cmd |= i << RADIO_RSP_ADDR_POS;
iwl_write_prph_no_grab(fwrt->trans, RSP_RADIO_CMD, rd_cmd);
*pos = (u8)iwl_read_prph_no_grab(fwrt->trans, RSP_RADIO_RDDAT);
pos++;
}
*dump_data = iwl_fw_error_next_data(*dump_data);
iwl_trans_release_nic_access(fwrt->trans, &flags);
}
static void iwl_fwrt_dump_rxf(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data,
int size, u32 offset, int fifo_num)
{
struct iwl_fw_error_dump_fifo *fifo_hdr;
u32 *fifo_data;
u32 fifo_len;
int i;
fifo_hdr = (void *)(*dump_data)->data;
fifo_data = (void *)fifo_hdr->data;
fifo_len = size;
/* No need to try to read the data if the length is 0 */
if (fifo_len == 0)
return;
/* Add a TLV for the RXF */
(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
(*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
fifo_hdr->fifo_num = cpu_to_le32(fifo_num);
fifo_hdr->available_bytes =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
RXF_RD_D_SPACE + offset));
fifo_hdr->wr_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
RXF_RD_WR_PTR + offset));
fifo_hdr->rd_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
RXF_RD_RD_PTR + offset));
fifo_hdr->fence_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
RXF_RD_FENCE_PTR + offset));
fifo_hdr->fence_mode =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
RXF_SET_FENCE_MODE + offset));
/* Lock fence */
iwl_trans_write_prph(fwrt->trans, RXF_SET_FENCE_MODE + offset, 0x1);
/* Set fence pointer to the same place like WR pointer */
iwl_trans_write_prph(fwrt->trans, RXF_LD_WR2FENCE + offset, 0x1);
/* Set fence offset */
iwl_trans_write_prph(fwrt->trans,
RXF_LD_FENCE_OFFSET_ADDR + offset, 0x0);
/* Read FIFO */
fifo_len /= sizeof(u32); /* Size in DWORDS */
for (i = 0; i < fifo_len; i++)
fifo_data[i] = iwl_trans_read_prph(fwrt->trans,
RXF_FIFO_RD_FENCE_INC +
offset);
*dump_data = iwl_fw_error_next_data(*dump_data);
}
static void iwl_fwrt_dump_txf(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data,
int size, u32 offset, int fifo_num)
{
struct iwl_fw_error_dump_fifo *fifo_hdr;
u32 *fifo_data;
u32 fifo_len;
int i;
fifo_hdr = (void *)(*dump_data)->data;
fifo_data = (void *)fifo_hdr->data;
fifo_len = size;
/* No need to try to read the data if the length is 0 */
if (fifo_len == 0)
return;
/* Add a TLV for the FIFO */
(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
(*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
fifo_hdr->fifo_num = cpu_to_le32(fifo_num);
fifo_hdr->available_bytes =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_FIFO_ITEM_CNT + offset));
fifo_hdr->wr_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_WR_PTR + offset));
fifo_hdr->rd_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_RD_PTR + offset));
fifo_hdr->fence_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_FENCE_PTR + offset));
fifo_hdr->fence_mode =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_LOCK_FENCE + offset));
/* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
iwl_trans_write_prph(fwrt->trans, TXF_READ_MODIFY_ADDR + offset,
TXF_WR_PTR + offset);
/* Dummy-read to advance the read pointer to the head */
iwl_trans_read_prph(fwrt->trans, TXF_READ_MODIFY_DATA + offset);
/* Read FIFO */
fifo_len /= sizeof(u32); /* Size in DWORDS */
for (i = 0; i < fifo_len; i++)
fifo_data[i] = iwl_trans_read_prph(fwrt->trans,
TXF_READ_MODIFY_DATA +
offset);
*dump_data = iwl_fw_error_next_data(*dump_data);
}
static void iwl_fw_dump_rxf(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data)
{
struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg;
unsigned long flags;
IWL_DEBUG_INFO(fwrt, "WRT RX FIFO dump\n");
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
return;
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF)) {
/* Pull RXF1 */
iwl_fwrt_dump_rxf(fwrt, dump_data,
cfg->lmac[0].rxfifo1_size, 0, 0);
/* Pull RXF2 */
iwl_fwrt_dump_rxf(fwrt, dump_data, cfg->rxfifo2_size,
RXF_DIFF_FROM_PREV +
fwrt->trans->trans_cfg->umac_prph_offset, 1);
/* Pull LMAC2 RXF1 */
if (fwrt->smem_cfg.num_lmacs > 1)
iwl_fwrt_dump_rxf(fwrt, dump_data,
cfg->lmac[1].rxfifo1_size,
LMAC2_PRPH_OFFSET, 2);
}
iwl_trans_release_nic_access(fwrt->trans, &flags);
}
static void iwl_fw_dump_txf(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data)
{
struct iwl_fw_error_dump_fifo *fifo_hdr;
struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg;
u32 *fifo_data;
u32 fifo_len;
unsigned long flags;
int i, j;
IWL_DEBUG_INFO(fwrt, "WRT TX FIFO dump\n");
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
return;
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF)) {
/* Pull TXF data from LMAC1 */
for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; i++) {
/* Mark the number of TXF we're pulling now */
iwl_trans_write_prph(fwrt->trans, TXF_LARC_NUM, i);
iwl_fwrt_dump_txf(fwrt, dump_data,
cfg->lmac[0].txfifo_size[i], 0, i);
}
/* Pull TXF data from LMAC2 */
if (fwrt->smem_cfg.num_lmacs > 1) {
for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries;
i++) {
/* Mark the number of TXF we're pulling now */
iwl_trans_write_prph(fwrt->trans,
TXF_LARC_NUM +
LMAC2_PRPH_OFFSET, i);
iwl_fwrt_dump_txf(fwrt, dump_data,
cfg->lmac[1].txfifo_size[i],
LMAC2_PRPH_OFFSET,
i + cfg->num_txfifo_entries);
}
}
}
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_INTERNAL_TXF) &&
fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
/* Pull UMAC internal TXF data from all TXFs */
for (i = 0;
i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size);
i++) {
fifo_hdr = (void *)(*dump_data)->data;
fifo_data = (void *)fifo_hdr->data;
fifo_len = fwrt->smem_cfg.internal_txfifo_size[i];
/* No need to try to read the data if the length is 0 */
if (fifo_len == 0)
continue;
/* Add a TLV for the internal FIFOs */
(*dump_data)->type =
cpu_to_le32(IWL_FW_ERROR_DUMP_INTERNAL_TXF);
(*dump_data)->len =
cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
fifo_hdr->fifo_num = cpu_to_le32(i);
/* Mark the number of TXF we're pulling now */
iwl_trans_write_prph(fwrt->trans, TXF_CPU2_NUM, i +
fwrt->smem_cfg.num_txfifo_entries);
fifo_hdr->available_bytes =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_FIFO_ITEM_CNT));
fifo_hdr->wr_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_WR_PTR));
fifo_hdr->rd_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_RD_PTR));
fifo_hdr->fence_ptr =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_FENCE_PTR));
fifo_hdr->fence_mode =
cpu_to_le32(iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_LOCK_FENCE));
/* Set TXF_CPU2_READ_MODIFY_ADDR to TXF_CPU2_WR_PTR */
iwl_trans_write_prph(fwrt->trans,
TXF_CPU2_READ_MODIFY_ADDR,
TXF_CPU2_WR_PTR);
/* Dummy-read to advance the read pointer to head */
iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_READ_MODIFY_DATA);
/* Read FIFO */
fifo_len /= sizeof(u32); /* Size in DWORDS */
for (j = 0; j < fifo_len; j++)
fifo_data[j] =
iwl_trans_read_prph(fwrt->trans,
TXF_CPU2_READ_MODIFY_DATA);
*dump_data = iwl_fw_error_next_data(*dump_data);
}
}
iwl_trans_release_nic_access(fwrt->trans, &flags);
}
#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
struct iwl_prph_range {
u32 start, end;
};
static const struct iwl_prph_range iwl_prph_dump_addr_comm[] = {
{ .start = 0x00a00000, .end = 0x00a00000 },
{ .start = 0x00a0000c, .end = 0x00a00024 },
{ .start = 0x00a0002c, .end = 0x00a0003c },
{ .start = 0x00a00410, .end = 0x00a00418 },
{ .start = 0x00a00420, .end = 0x00a00420 },
{ .start = 0x00a00428, .end = 0x00a00428 },
{ .start = 0x00a00430, .end = 0x00a0043c },
{ .start = 0x00a00444, .end = 0x00a00444 },
{ .start = 0x00a004c0, .end = 0x00a004cc },
{ .start = 0x00a004d8, .end = 0x00a004d8 },
{ .start = 0x00a004e0, .end = 0x00a004f0 },
{ .start = 0x00a00840, .end = 0x00a00840 },
{ .start = 0x00a00850, .end = 0x00a00858 },
{ .start = 0x00a01004, .end = 0x00a01008 },
{ .start = 0x00a01010, .end = 0x00a01010 },
{ .start = 0x00a01018, .end = 0x00a01018 },
{ .start = 0x00a01024, .end = 0x00a01024 },
{ .start = 0x00a0102c, .end = 0x00a01034 },
{ .start = 0x00a0103c, .end = 0x00a01040 },
{ .start = 0x00a01048, .end = 0x00a01094 },
{ .start = 0x00a01c00, .end = 0x00a01c20 },
{ .start = 0x00a01c58, .end = 0x00a01c58 },
{ .start = 0x00a01c7c, .end = 0x00a01c7c },
{ .start = 0x00a01c28, .end = 0x00a01c54 },
{ .start = 0x00a01c5c, .end = 0x00a01c5c },
{ .start = 0x00a01c60, .end = 0x00a01cdc },
{ .start = 0x00a01ce0, .end = 0x00a01d0c },
{ .start = 0x00a01d18, .end = 0x00a01d20 },
{ .start = 0x00a01d2c, .end = 0x00a01d30 },
{ .start = 0x00a01d40, .end = 0x00a01d5c },
{ .start = 0x00a01d80, .end = 0x00a01d80 },
{ .start = 0x00a01d98, .end = 0x00a01d9c },
{ .start = 0x00a01da8, .end = 0x00a01da8 },
{ .start = 0x00a01db8, .end = 0x00a01df4 },
{ .start = 0x00a01dc0, .end = 0x00a01dfc },
{ .start = 0x00a01e00, .end = 0x00a01e2c },
{ .start = 0x00a01e40, .end = 0x00a01e60 },
{ .start = 0x00a01e68, .end = 0x00a01e6c },
{ .start = 0x00a01e74, .end = 0x00a01e74 },
{ .start = 0x00a01e84, .end = 0x00a01e90 },
{ .start = 0x00a01e9c, .end = 0x00a01ec4 },
{ .start = 0x00a01ed0, .end = 0x00a01ee0 },
{ .start = 0x00a01f00, .end = 0x00a01f1c },
{ .start = 0x00a01f44, .end = 0x00a01ffc },
{ .start = 0x00a02000, .end = 0x00a02048 },
{ .start = 0x00a02068, .end = 0x00a020f0 },
{ .start = 0x00a02100, .end = 0x00a02118 },
{ .start = 0x00a02140, .end = 0x00a0214c },
{ .start = 0x00a02168, .end = 0x00a0218c },
{ .start = 0x00a021c0, .end = 0x00a021c0 },
{ .start = 0x00a02400, .end = 0x00a02410 },
{ .start = 0x00a02418, .end = 0x00a02420 },
{ .start = 0x00a02428, .end = 0x00a0242c },
{ .start = 0x00a02434, .end = 0x00a02434 },
{ .start = 0x00a02440, .end = 0x00a02460 },
{ .start = 0x00a02468, .end = 0x00a024b0 },
{ .start = 0x00a024c8, .end = 0x00a024cc },
{ .start = 0x00a02500, .end = 0x00a02504 },
{ .start = 0x00a0250c, .end = 0x00a02510 },
{ .start = 0x00a02540, .end = 0x00a02554 },
{ .start = 0x00a02580, .end = 0x00a025f4 },
{ .start = 0x00a02600, .end = 0x00a0260c },
{ .start = 0x00a02648, .end = 0x00a02650 },
{ .start = 0x00a02680, .end = 0x00a02680 },
{ .start = 0x00a026c0, .end = 0x00a026d0 },
{ .start = 0x00a02700, .end = 0x00a0270c },
{ .start = 0x00a02804, .end = 0x00a02804 },
{ .start = 0x00a02818, .end = 0x00a0281c },
{ .start = 0x00a02c00, .end = 0x00a02db4 },
{ .start = 0x00a02df4, .end = 0x00a02fb0 },
{ .start = 0x00a03000, .end = 0x00a03014 },
{ .start = 0x00a0301c, .end = 0x00a0302c },
{ .start = 0x00a03034, .end = 0x00a03038 },
{ .start = 0x00a03040, .end = 0x00a03048 },
{ .start = 0x00a03060, .end = 0x00a03068 },
{ .start = 0x00a03070, .end = 0x00a03074 },
{ .start = 0x00a0307c, .end = 0x00a0307c },
{ .start = 0x00a03080, .end = 0x00a03084 },
{ .start = 0x00a0308c, .end = 0x00a03090 },
{ .start = 0x00a03098, .end = 0x00a03098 },
{ .start = 0x00a030a0, .end = 0x00a030a0 },
{ .start = 0x00a030a8, .end = 0x00a030b4 },
{ .start = 0x00a030bc, .end = 0x00a030bc },
{ .start = 0x00a030c0, .end = 0x00a0312c },
{ .start = 0x00a03c00, .end = 0x00a03c5c },
{ .start = 0x00a04400, .end = 0x00a04454 },
{ .start = 0x00a04460, .end = 0x00a04474 },
{ .start = 0x00a044c0, .end = 0x00a044ec },
{ .start = 0x00a04500, .end = 0x00a04504 },
{ .start = 0x00a04510, .end = 0x00a04538 },
{ .start = 0x00a04540, .end = 0x00a04548 },
{ .start = 0x00a04560, .end = 0x00a0457c },
{ .start = 0x00a04590, .end = 0x00a04598 },
{ .start = 0x00a045c0, .end = 0x00a045f4 },
};
static const struct iwl_prph_range iwl_prph_dump_addr_9000[] = {
{ .start = 0x00a05c00, .end = 0x00a05c18 },
{ .start = 0x00a05400, .end = 0x00a056e8 },
{ .start = 0x00a08000, .end = 0x00a098bc },
{ .start = 0x00a02400, .end = 0x00a02758 },
{ .start = 0x00a04764, .end = 0x00a0476c },
{ .start = 0x00a04770, .end = 0x00a04774 },
{ .start = 0x00a04620, .end = 0x00a04624 },
};
static const struct iwl_prph_range iwl_prph_dump_addr_22000[] = {
{ .start = 0x00a00000, .end = 0x00a00000 },
{ .start = 0x00a0000c, .end = 0x00a00024 },
{ .start = 0x00a0002c, .end = 0x00a00034 },
{ .start = 0x00a0003c, .end = 0x00a0003c },
{ .start = 0x00a00410, .end = 0x00a00418 },
{ .start = 0x00a00420, .end = 0x00a00420 },
{ .start = 0x00a00428, .end = 0x00a00428 },
{ .start = 0x00a00430, .end = 0x00a0043c },
{ .start = 0x00a00444, .end = 0x00a00444 },
{ .start = 0x00a00840, .end = 0x00a00840 },
{ .start = 0x00a00850, .end = 0x00a00858 },
{ .start = 0x00a01004, .end = 0x00a01008 },
{ .start = 0x00a01010, .end = 0x00a01010 },
{ .start = 0x00a01018, .end = 0x00a01018 },
{ .start = 0x00a01024, .end = 0x00a01024 },
{ .start = 0x00a0102c, .end = 0x00a01034 },
{ .start = 0x00a0103c, .end = 0x00a01040 },
{ .start = 0x00a01048, .end = 0x00a01050 },
{ .start = 0x00a01058, .end = 0x00a01058 },
{ .start = 0x00a01060, .end = 0x00a01070 },
{ .start = 0x00a0108c, .end = 0x00a0108c },
{ .start = 0x00a01c20, .end = 0x00a01c28 },
{ .start = 0x00a01d10, .end = 0x00a01d10 },
{ .start = 0x00a01e28, .end = 0x00a01e2c },
{ .start = 0x00a01e60, .end = 0x00a01e60 },
{ .start = 0x00a01e80, .end = 0x00a01e80 },
{ .start = 0x00a01ea0, .end = 0x00a01ea0 },
{ .start = 0x00a02000, .end = 0x00a0201c },
{ .start = 0x00a02024, .end = 0x00a02024 },
{ .start = 0x00a02040, .end = 0x00a02048 },
{ .start = 0x00a020c0, .end = 0x00a020e0 },
{ .start = 0x00a02400, .end = 0x00a02404 },
{ .start = 0x00a0240c, .end = 0x00a02414 },
{ .start = 0x00a0241c, .end = 0x00a0243c },
{ .start = 0x00a02448, .end = 0x00a024bc },
{ .start = 0x00a024c4, .end = 0x00a024cc },
{ .start = 0x00a02508, .end = 0x00a02508 },
{ .start = 0x00a02510, .end = 0x00a02514 },
{ .start = 0x00a0251c, .end = 0x00a0251c },
{ .start = 0x00a0252c, .end = 0x00a0255c },
{ .start = 0x00a02564, .end = 0x00a025a0 },
{ .start = 0x00a025a8, .end = 0x00a025b4 },
{ .start = 0x00a025c0, .end = 0x00a025c0 },
{ .start = 0x00a025e8, .end = 0x00a025f4 },
{ .start = 0x00a02c08, .end = 0x00a02c18 },
{ .start = 0x00a02c2c, .end = 0x00a02c38 },
{ .start = 0x00a02c68, .end = 0x00a02c78 },
{ .start = 0x00a03000, .end = 0x00a03000 },
{ .start = 0x00a03010, .end = 0x00a03014 },
{ .start = 0x00a0301c, .end = 0x00a0302c },
{ .start = 0x00a03034, .end = 0x00a03038 },
{ .start = 0x00a03040, .end = 0x00a03044 },
{ .start = 0x00a03060, .end = 0x00a03068 },
{ .start = 0x00a03070, .end = 0x00a03070 },
{ .start = 0x00a0307c, .end = 0x00a03084 },
{ .start = 0x00a0308c, .end = 0x00a03090 },
{ .start = 0x00a03098, .end = 0x00a03098 },
{ .start = 0x00a030a0, .end = 0x00a030a0 },
{ .start = 0x00a030a8, .end = 0x00a030b4 },
{ .start = 0x00a030bc, .end = 0x00a030c0 },
{ .start = 0x00a030c8, .end = 0x00a030f4 },
{ .start = 0x00a03100, .end = 0x00a0312c },
{ .start = 0x00a03c00, .end = 0x00a03c5c },
{ .start = 0x00a04400, .end = 0x00a04454 },
{ .start = 0x00a04460, .end = 0x00a04474 },
{ .start = 0x00a044c0, .end = 0x00a044ec },
{ .start = 0x00a04500, .end = 0x00a04504 },
{ .start = 0x00a04510, .end = 0x00a04538 },
{ .start = 0x00a04540, .end = 0x00a04548 },
{ .start = 0x00a04560, .end = 0x00a04560 },
{ .start = 0x00a04570, .end = 0x00a0457c },
{ .start = 0x00a04590, .end = 0x00a04590 },
{ .start = 0x00a04598, .end = 0x00a04598 },
{ .start = 0x00a045c0, .end = 0x00a045f4 },
{ .start = 0x00a05c18, .end = 0x00a05c1c },
{ .start = 0x00a0c000, .end = 0x00a0c018 },
{ .start = 0x00a0c020, .end = 0x00a0c028 },
{ .start = 0x00a0c038, .end = 0x00a0c094 },
{ .start = 0x00a0c0c0, .end = 0x00a0c104 },
{ .start = 0x00a0c10c, .end = 0x00a0c118 },
{ .start = 0x00a0c150, .end = 0x00a0c174 },
{ .start = 0x00a0c17c, .end = 0x00a0c188 },
{ .start = 0x00a0c190, .end = 0x00a0c198 },
{ .start = 0x00a0c1a0, .end = 0x00a0c1a8 },
{ .start = 0x00a0c1b0, .end = 0x00a0c1b8 },
};
static const struct iwl_prph_range iwl_prph_dump_addr_ax210[] = {
{ .start = 0x00d03c00, .end = 0x00d03c64 },
{ .start = 0x00d05c18, .end = 0x00d05c1c },
{ .start = 0x00d0c000, .end = 0x00d0c174 },
};
static void iwl_read_prph_block(struct iwl_trans *trans, u32 start,
u32 len_bytes, __le32 *data)
{
u32 i;
for (i = 0; i < len_bytes; i += 4)
*data++ = cpu_to_le32(iwl_read_prph_no_grab(trans, start + i));
}
static void iwl_dump_prph(struct iwl_fw_runtime *fwrt,
const struct iwl_prph_range *iwl_prph_dump_addr,
u32 range_len, void *ptr)
{
struct iwl_fw_error_dump_prph *prph;
struct iwl_trans *trans = fwrt->trans;
struct iwl_fw_error_dump_data **data =
(struct iwl_fw_error_dump_data **)ptr;
unsigned long flags;
u32 i;
if (!data)
return;
IWL_DEBUG_INFO(trans, "WRT PRPH dump\n");
if (!iwl_trans_grab_nic_access(trans, &flags))
return;
for (i = 0; i < range_len; i++) {
/* The range includes both boundaries */
int num_bytes_in_chunk = iwl_prph_dump_addr[i].end -
iwl_prph_dump_addr[i].start + 4;
(*data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PRPH);
(*data)->len = cpu_to_le32(sizeof(*prph) +
num_bytes_in_chunk);
prph = (void *)(*data)->data;
prph->prph_start = cpu_to_le32(iwl_prph_dump_addr[i].start);
iwl_read_prph_block(trans, iwl_prph_dump_addr[i].start,
/* our range is inclusive, hence + 4 */
iwl_prph_dump_addr[i].end -
iwl_prph_dump_addr[i].start + 4,
(void *)prph->data);
*data = iwl_fw_error_next_data(*data);
}
iwl_trans_release_nic_access(trans, &flags);
}
/*
* alloc_sgtable - allocates scallerlist table in the given size,
* fills it with pages and returns it
* @size: the size (in bytes) of the table
*/
static struct scatterlist *alloc_sgtable(int size)
{
int alloc_size, nents, i;
struct page *new_page;
struct scatterlist *iter;
struct scatterlist *table;
nents = DIV_ROUND_UP(size, PAGE_SIZE);
table = kcalloc(nents, sizeof(*table), GFP_KERNEL);
if (!table)
return NULL;
sg_init_table(table, nents);
iter = table;
for_each_sg(table, iter, sg_nents(table), i) {
new_page = alloc_page(GFP_KERNEL);
if (!new_page) {
/* release all previous allocated pages in the table */
iter = table;
for_each_sg(table, iter, sg_nents(table), i) {
new_page = sg_page(iter);
if (new_page)
__free_page(new_page);
}
kfree(table);
return NULL;
}
alloc_size = min_t(int, size, PAGE_SIZE);
size -= PAGE_SIZE;
sg_set_page(iter, new_page, alloc_size, 0);
}
return table;
}
static void iwl_fw_get_prph_len(struct iwl_fw_runtime *fwrt,
const struct iwl_prph_range *iwl_prph_dump_addr,
u32 range_len, void *ptr)
{
u32 *prph_len = (u32 *)ptr;
int i, num_bytes_in_chunk;
if (!prph_len)
return;
for (i = 0; i < range_len; i++) {
/* The range includes both boundaries */
num_bytes_in_chunk =
iwl_prph_dump_addr[i].end -
iwl_prph_dump_addr[i].start + 4;
*prph_len += sizeof(struct iwl_fw_error_dump_data) +
sizeof(struct iwl_fw_error_dump_prph) +
num_bytes_in_chunk;
}
}
static void iwl_fw_prph_handler(struct iwl_fw_runtime *fwrt, void *ptr,
void (*handler)(struct iwl_fw_runtime *,
const struct iwl_prph_range *,
u32, void *))
{
u32 range_len;
if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
range_len = ARRAY_SIZE(iwl_prph_dump_addr_ax210);
handler(fwrt, iwl_prph_dump_addr_ax210, range_len, ptr);
} else if (fwrt->trans->trans_cfg->device_family >=
IWL_DEVICE_FAMILY_22000) {
range_len = ARRAY_SIZE(iwl_prph_dump_addr_22000);
handler(fwrt, iwl_prph_dump_addr_22000, range_len, ptr);
} else {
range_len = ARRAY_SIZE(iwl_prph_dump_addr_comm);
handler(fwrt, iwl_prph_dump_addr_comm, range_len, ptr);
if (fwrt->trans->trans_cfg->mq_rx_supported) {
range_len = ARRAY_SIZE(iwl_prph_dump_addr_9000);
handler(fwrt, iwl_prph_dump_addr_9000, range_len, ptr);
}
}
}
static void iwl_fw_dump_mem(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **dump_data,
u32 len, u32 ofs, u32 type)
{
struct iwl_fw_error_dump_mem *dump_mem;
if (!len)
return;
(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
(*dump_data)->len = cpu_to_le32(len + sizeof(*dump_mem));
dump_mem = (void *)(*dump_data)->data;
dump_mem->type = cpu_to_le32(type);
dump_mem->offset = cpu_to_le32(ofs);
iwl_trans_read_mem_bytes(fwrt->trans, ofs, dump_mem->data, len);
*dump_data = iwl_fw_error_next_data(*dump_data);
IWL_DEBUG_INFO(fwrt, "WRT memory dump. Type=%u\n", dump_mem->type);
}
#define ADD_LEN(len, item_len, const_len) \
do {size_t item = item_len; len += (!!item) * const_len + item; } \
while (0)
static int iwl_fw_rxf_len(struct iwl_fw_runtime *fwrt,
struct iwl_fwrt_shared_mem_cfg *mem_cfg)
{
size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) +
sizeof(struct iwl_fw_error_dump_fifo);
u32 fifo_len = 0;
int i;
if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF))
return 0;
/* Count RXF2 size */
ADD_LEN(fifo_len, mem_cfg->rxfifo2_size, hdr_len);
/* Count RXF1 sizes */
if (WARN_ON(mem_cfg->num_lmacs > MAX_NUM_LMAC))
mem_cfg->num_lmacs = MAX_NUM_LMAC;
for (i = 0; i < mem_cfg->num_lmacs; i++)
ADD_LEN(fifo_len, mem_cfg->lmac[i].rxfifo1_size, hdr_len);
return fifo_len;
}
static int iwl_fw_txf_len(struct iwl_fw_runtime *fwrt,
struct iwl_fwrt_shared_mem_cfg *mem_cfg)
{
size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) +
sizeof(struct iwl_fw_error_dump_fifo);
u32 fifo_len = 0;
int i;
if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF))
goto dump_internal_txf;
/* Count TXF sizes */
if (WARN_ON(mem_cfg->num_lmacs > MAX_NUM_LMAC))
mem_cfg->num_lmacs = MAX_NUM_LMAC;
for (i = 0; i < mem_cfg->num_lmacs; i++) {
int j;
for (j = 0; j < mem_cfg->num_txfifo_entries; j++)
ADD_LEN(fifo_len, mem_cfg->lmac[i].txfifo_size[j],
hdr_len);
}
dump_internal_txf:
if (!(iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_INTERNAL_TXF) &&
fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)))
goto out;
for (i = 0; i < ARRAY_SIZE(mem_cfg->internal_txfifo_size); i++)
ADD_LEN(fifo_len, mem_cfg->internal_txfifo_size[i], hdr_len);
out:
return fifo_len;
}
static void iwl_dump_paging(struct iwl_fw_runtime *fwrt,
struct iwl_fw_error_dump_data **data)
{
int i;
IWL_DEBUG_INFO(fwrt, "WRT paging dump\n");
for (i = 1; i < fwrt->num_of_paging_blk + 1; i++) {
struct iwl_fw_error_dump_paging *paging;
struct page *pages =
fwrt->fw_paging_db[i].fw_paging_block;
dma_addr_t addr = fwrt->fw_paging_db[i].fw_paging_phys;
(*data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
(*data)->len = cpu_to_le32(sizeof(*paging) +
PAGING_BLOCK_SIZE);
paging = (void *)(*data)->data;
paging->index = cpu_to_le32(i);
dma_sync_single_for_cpu(fwrt->trans->dev, addr,
PAGING_BLOCK_SIZE,
DMA_BIDIRECTIONAL);
memcpy(paging->data, page_address(pages),
PAGING_BLOCK_SIZE);
dma_sync_single_for_device(fwrt->trans->dev, addr,
PAGING_BLOCK_SIZE,
DMA_BIDIRECTIONAL);
(*data) = iwl_fw_error_next_data(*data);
}
}
static struct iwl_fw_error_dump_file *
iwl_fw_error_dump_file(struct iwl_fw_runtime *fwrt,
struct iwl_fw_dump_ptrs *fw_error_dump)
{
struct iwl_fw_error_dump_file *dump_file;
struct iwl_fw_error_dump_data *dump_data;
struct iwl_fw_error_dump_info *dump_info;
struct iwl_fw_error_dump_smem_cfg *dump_smem_cfg;
struct iwl_fw_error_dump_trigger_desc *dump_trig;
u32 sram_len, sram_ofs;
const struct iwl_fw_dbg_mem_seg_tlv *fw_mem = fwrt->fw->dbg.mem_tlv;
struct iwl_fwrt_shared_mem_cfg *mem_cfg = &fwrt->smem_cfg;
u32 file_len, fifo_len = 0, prph_len = 0, radio_len = 0;
u32 smem_len = fwrt->fw->dbg.n_mem_tlv ? 0 : fwrt->trans->cfg->smem_len;
u32 sram2_len = fwrt->fw->dbg.n_mem_tlv ?
0 : fwrt->trans->cfg->dccm2_len;
int i;
/* SRAM - include stack CCM if driver knows the values for it */
if (!fwrt->trans->cfg->dccm_offset || !fwrt->trans->cfg->dccm_len) {
const struct fw_img *img;
if (fwrt->cur_fw_img >= IWL_UCODE_TYPE_MAX)
return NULL;
img = &fwrt->fw->img[fwrt->cur_fw_img];
sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
} else {
sram_ofs = fwrt->trans->cfg->dccm_offset;
sram_len = fwrt->trans->cfg->dccm_len;
}
/* reading RXF/TXF sizes */
if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status)) {
fifo_len = iwl_fw_rxf_len(fwrt, mem_cfg);
fifo_len += iwl_fw_txf_len(fwrt, mem_cfg);
/* Make room for PRPH registers */
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PRPH))
iwl_fw_prph_handler(fwrt, &prph_len,
iwl_fw_get_prph_len);
if (fwrt->trans->trans_cfg->device_family ==
IWL_DEVICE_FAMILY_7000 &&
iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RADIO_REG))
radio_len = sizeof(*dump_data) + RADIO_REG_MAX_READ;
}
file_len = sizeof(*dump_file) + fifo_len + prph_len + radio_len;
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_DEV_FW_INFO))
file_len += sizeof(*dump_data) + sizeof(*dump_info);
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM_CFG))
file_len += sizeof(*dump_data) + sizeof(*dump_smem_cfg);
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM)) {
size_t hdr_len = sizeof(*dump_data) +
sizeof(struct iwl_fw_error_dump_mem);
/* Dump SRAM only if no mem_tlvs */
if (!fwrt->fw->dbg.n_mem_tlv)
ADD_LEN(file_len, sram_len, hdr_len);
/* Make room for all mem types that exist */
ADD_LEN(file_len, smem_len, hdr_len);
ADD_LEN(file_len, sram2_len, hdr_len);
for (i = 0; i < fwrt->fw->dbg.n_mem_tlv; i++)
ADD_LEN(file_len, le32_to_cpu(fw_mem[i].len), hdr_len);
}
/* Make room for fw's virtual image pages, if it exists */
if (iwl_fw_dbg_is_paging_enabled(fwrt))
file_len += fwrt->num_of_paging_blk *
(sizeof(*dump_data) +
sizeof(struct iwl_fw_error_dump_paging) +
PAGING_BLOCK_SIZE);
if (iwl_fw_dbg_is_d3_debug_enabled(fwrt) && fwrt->dump.d3_debug_data) {
file_len += sizeof(*dump_data) +
fwrt->trans->cfg->d3_debug_data_length * 2;
}
/* If we only want a monitor dump, reset the file length */
if (fwrt->dump.monitor_only) {
file_len = sizeof(*dump_file) + sizeof(*dump_data) * 2 +
sizeof(*dump_info) + sizeof(*dump_smem_cfg);
}
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_ERROR_INFO) &&
fwrt->dump.desc)
file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
fwrt->dump.desc->len;
dump_file = vzalloc(file_len);
if (!dump_file)
return NULL;
fw_error_dump->fwrt_ptr = dump_file;
dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
dump_data = (void *)dump_file->data;
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_DEV_FW_INFO)) {
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
dump_data->len = cpu_to_le32(sizeof(*dump_info));
dump_info = (void *)dump_data->data;
dump_info->hw_type =
cpu_to_le32(CSR_HW_REV_TYPE(fwrt->trans->hw_rev));
dump_info->hw_step =
cpu_to_le32(CSR_HW_REV_STEP(fwrt->trans->hw_rev));
memcpy(dump_info->fw_human_readable, fwrt->fw->human_readable,
sizeof(dump_info->fw_human_readable));
strncpy(dump_info->dev_human_readable, fwrt->trans->cfg->name,
sizeof(dump_info->dev_human_readable) - 1);
strncpy(dump_info->bus_human_readable, fwrt->dev->bus->name,
sizeof(dump_info->bus_human_readable) - 1);
dump_info->num_of_lmacs = fwrt->smem_cfg.num_lmacs;
dump_info->lmac_err_id[0] =
cpu_to_le32(fwrt->dump.lmac_err_id[0]);
if (fwrt->smem_cfg.num_lmacs > 1)
dump_info->lmac_err_id[1] =
cpu_to_le32(fwrt->dump.lmac_err_id[1]);
dump_info->umac_err_id = cpu_to_le32(fwrt->dump.umac_err_id);
dump_data = iwl_fw_error_next_data(dump_data);
}
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM_CFG)) {
/* Dump shared memory configuration */
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_CFG);
dump_data->len = cpu_to_le32(sizeof(*dump_smem_cfg));
dump_smem_cfg = (void *)dump_data->data;
dump_smem_cfg->num_lmacs = cpu_to_le32(mem_cfg->num_lmacs);
dump_smem_cfg->num_txfifo_entries =
cpu_to_le32(mem_cfg->num_txfifo_entries);
for (i = 0; i < MAX_NUM_LMAC; i++) {
int j;
u32 *txf_size = mem_cfg->lmac[i].txfifo_size;
for (j = 0; j < TX_FIFO_MAX_NUM; j++)
dump_smem_cfg->lmac[i].txfifo_size[j] =
cpu_to_le32(txf_size[j]);
dump_smem_cfg->lmac[i].rxfifo1_size =
cpu_to_le32(mem_cfg->lmac[i].rxfifo1_size);
}
dump_smem_cfg->rxfifo2_size =
cpu_to_le32(mem_cfg->rxfifo2_size);
dump_smem_cfg->internal_txfifo_addr =
cpu_to_le32(mem_cfg->internal_txfifo_addr);
for (i = 0; i < TX_FIFO_INTERNAL_MAX_NUM; i++) {
dump_smem_cfg->internal_txfifo_size[i] =
cpu_to_le32(mem_cfg->internal_txfifo_size[i]);
}
dump_data = iwl_fw_error_next_data(dump_data);
}
/* We only dump the FIFOs if the FW is in error state */
if (fifo_len) {
iwl_fw_dump_rxf(fwrt, &dump_data);
iwl_fw_dump_txf(fwrt, &dump_data);
}
if (radio_len)
iwl_read_radio_regs(fwrt, &dump_data);
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_ERROR_INFO) &&
fwrt->dump.desc) {
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
fwrt->dump.desc->len);
dump_trig = (void *)dump_data->data;
memcpy(dump_trig, &fwrt->dump.desc->trig_desc,
sizeof(*dump_trig) + fwrt->dump.desc->len);
dump_data = iwl_fw_error_next_data(dump_data);
}
/* In case we only want monitor dump, skip to dump trasport data */
if (fwrt->dump.monitor_only)
goto out;
if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM)) {
const struct iwl_fw_dbg_mem_seg_tlv *fw_dbg_mem =
fwrt->fw->dbg.mem_tlv;
if (!fwrt->fw->dbg.n_mem_tlv)
iwl_fw_dump_mem(fwrt, &dump_data, sram_len, sram_ofs,
IWL_FW_ERROR_DUMP_MEM_SRAM);
for (i = 0; i < fwrt->fw->dbg.n_mem_tlv; i++) {
u32 len = le32_to_cpu(fw_dbg_mem[i].len);
u32 ofs = le32_to_cpu(fw_dbg_mem[i].ofs);
iwl_fw_dump_mem(fwrt, &dump_data, len, ofs,
le32_to_cpu(fw_dbg_mem[i].data_type));
}
iwl_fw_dump_mem(fwrt, &dump_data, smem_len,
fwrt->trans->cfg->smem_offset,
IWL_FW_ERROR_DUMP_MEM_SMEM);
iwl_fw_dump_mem(fwrt, &dump_data, sram2_len,
fwrt->trans->cfg->dccm2_offset,
IWL_FW_ERROR_DUMP_MEM_SRAM);
}
if (iwl_fw_dbg_is_d3_debug_enabled(fwrt) && fwrt->dump.d3_debug_data) {
u32 addr = fwrt->trans->cfg->d3_debug_data_base_addr;
size_t data_size = fwrt->trans->cfg->d3_debug_data_length;
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
dump_data->len = cpu_to_le32(data_size * 2);
memcpy(dump_data->data, fwrt->dump.d3_debug_data, data_size);
kfree(fwrt->dump.d3_debug_data);
fwrt->dump.d3_debug_data = NULL;
iwl_trans_read_mem_bytes(fwrt->trans, addr,
dump_data->data + data_size,
data_size);
dump_data = iwl_fw_error_next_data(dump_data);
}
/* Dump fw's virtual image */
if (iwl_fw_dbg_is_paging_enabled(fwrt))
iwl_dump_paging(fwrt, &dump_data);
if (prph_len)
iwl_fw_prph_handler(fwrt, &dump_data, iwl_dump_prph);
out:
dump_file->file_len = cpu_to_le32(file_len);
return dump_file;
}
static int iwl_dump_ini_prph_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
__le32 *val = range->data;
u32 prph_val;
u32 addr = le32_to_cpu(reg->start_addr[idx]) + le32_to_cpu(reg->offset);
int i;
range->internal_base_addr = cpu_to_le32(addr);
range->range_data_size = reg->internal.range_data_size;
for (i = 0; i < le32_to_cpu(reg->internal.range_data_size); i += 4) {
prph_val = iwl_read_prph(fwrt->trans, addr + i);
if (prph_val == 0x5a5a5a5a)
return -EBUSY;
*val++ = cpu_to_le32(prph_val);
}
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int iwl_dump_ini_csr_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
__le32 *val = range->data;
u32 addr = le32_to_cpu(reg->start_addr[idx]) + le32_to_cpu(reg->offset);
int i;
range->internal_base_addr = cpu_to_le32(addr);
range->range_data_size = reg->internal.range_data_size;
for (i = 0; i < le32_to_cpu(reg->internal.range_data_size); i += 4)
*val++ = cpu_to_le32(iwl_trans_read32(fwrt->trans, addr + i));
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int iwl_dump_ini_dev_mem_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
u32 addr = le32_to_cpu(reg->start_addr[idx]) + le32_to_cpu(reg->offset);
range->internal_base_addr = cpu_to_le32(addr);
range->range_data_size = reg->internal.range_data_size;
iwl_trans_read_mem_bytes(fwrt->trans, addr, range->data,
le32_to_cpu(reg->internal.range_data_size));
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int _iwl_dump_ini_paging_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
/* increase idx by 1 since the pages are from 1 to
* fwrt->num_of_paging_blk + 1
*/
struct page *page = fwrt->fw_paging_db[++idx].fw_paging_block;
struct iwl_fw_ini_error_dump_range *range = range_ptr;
dma_addr_t addr = fwrt->fw_paging_db[idx].fw_paging_phys;
u32 page_size = fwrt->fw_paging_db[idx].fw_paging_size;
range->page_num = cpu_to_le32(idx);
range->range_data_size = cpu_to_le32(page_size);
dma_sync_single_for_cpu(fwrt->trans->dev, addr, page_size,
DMA_BIDIRECTIONAL);
memcpy(range->data, page_address(page), page_size);
dma_sync_single_for_device(fwrt->trans->dev, addr, page_size,
DMA_BIDIRECTIONAL);
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int iwl_dump_ini_paging_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range;
u32 page_size;
if (!fwrt->trans->trans_cfg->gen2)
return _iwl_dump_ini_paging_iter(fwrt, reg, range_ptr, idx);
range = range_ptr;
page_size = fwrt->trans->init_dram.paging[idx].size;
range->page_num = cpu_to_le32(idx);
range->range_data_size = cpu_to_le32(page_size);
memcpy(range->data, fwrt->trans->init_dram.paging[idx].block,
page_size);
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int
iwl_dump_ini_mon_dram_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg, void *range_ptr,
int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
u32 start_addr = iwl_read_umac_prph(fwrt->trans,
MON_BUFF_BASE_ADDR_VER2);
if (start_addr == 0x5a5a5a5a)
return -EBUSY;
range->dram_base_addr = cpu_to_le64(start_addr);
range->range_data_size = cpu_to_le32(fwrt->trans->dbg.fw_mon[idx].size);
memcpy(range->data, fwrt->trans->dbg.fw_mon[idx].block,
fwrt->trans->dbg.fw_mon[idx].size);
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static bool iwl_ini_txf_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg, int idx)
{
struct iwl_txf_iter_data *iter = &fwrt->dump.txf_iter_data;
struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg;
int txf_num = cfg->num_txfifo_entries;
int int_txf_num = ARRAY_SIZE(cfg->internal_txfifo_size);
u32 lmac_bitmap = le32_to_cpu(reg->fifos.fid1);
if (!idx) {
if (le32_to_cpu(reg->offset) &&
WARN_ONCE(cfg->num_lmacs == 1,
"Invalid lmac offset: 0x%x\n",
le32_to_cpu(reg->offset)))
return false;
iter->internal_txf = 0;
iter->fifo_size = 0;
iter->fifo = -1;
if (le32_to_cpu(reg->offset))
iter->lmac = 1;
else
iter->lmac = 0;
}
if (!iter->internal_txf)
for (iter->fifo++; iter->fifo < txf_num; iter->fifo++) {
iter->fifo_size =
cfg->lmac[iter->lmac].txfifo_size[iter->fifo];
if (iter->fifo_size && (lmac_bitmap & BIT(iter->fifo)))
return true;
}
iter->internal_txf = 1;
if (!fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
return false;
for (iter->fifo++; iter->fifo < int_txf_num + txf_num; iter->fifo++) {
iter->fifo_size =
cfg->internal_txfifo_size[iter->fifo - txf_num];
if (iter->fifo_size && (lmac_bitmap & BIT(iter->fifo)))
return true;
}
return false;
}
static int iwl_dump_ini_txf_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
struct iwl_txf_iter_data *iter = &fwrt->dump.txf_iter_data;
struct iwl_fw_ini_error_dump_register *reg_dump = (void *)range->data;
u32 offs = le32_to_cpu(reg->offset), addr;
u32 registers_size =
le32_to_cpu(reg->fifos.num_of_registers) * sizeof(*reg_dump);
__le32 *data;
unsigned long flags;
int i;
if (!iwl_ini_txf_iter(fwrt, reg, idx))
return -EIO;
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
return -EBUSY;
range->fifo_hdr.fifo_num = cpu_to_le32(iter->fifo);
range->fifo_hdr.num_of_registers = reg->fifos.num_of_registers;
range->range_data_size = cpu_to_le32(iter->fifo_size + registers_size);
iwl_write_prph_no_grab(fwrt->trans, TXF_LARC_NUM + offs, iter->fifo);
/*
* read txf registers. for each register, write to the dump the
* register address and its value
*/
for (i = 0; i < le32_to_cpu(reg->fifos.num_of_registers); i++) {
addr = le32_to_cpu(reg->start_addr[i]) + offs;
reg_dump->addr = cpu_to_le32(addr);
reg_dump->data = cpu_to_le32(iwl_read_prph_no_grab(fwrt->trans,
addr));
reg_dump++;
}
if (reg->fifos.header_only) {
range->range_data_size = cpu_to_le32(registers_size);
goto out;
}
/* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
iwl_write_prph_no_grab(fwrt->trans, TXF_READ_MODIFY_ADDR + offs,
TXF_WR_PTR + offs);
/* Dummy-read to advance the read pointer to the head */
iwl_read_prph_no_grab(fwrt->trans, TXF_READ_MODIFY_DATA + offs);
/* Read FIFO */
addr = TXF_READ_MODIFY_DATA + offs;
data = (void *)reg_dump;
for (i = 0; i < iter->fifo_size; i += sizeof(*data))
*data++ = cpu_to_le32(iwl_read_prph_no_grab(fwrt->trans, addr));
out:
iwl_trans_release_nic_access(fwrt->trans, &flags);
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
struct iwl_ini_rxf_data {
u32 fifo_num;
u32 size;
u32 offset;
};
static void iwl_ini_get_rxf_data(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
struct iwl_ini_rxf_data *data)
{
u32 fid1 = le32_to_cpu(reg->fifos.fid1);
u32 fid2 = le32_to_cpu(reg->fifos.fid2);
u32 fifo_idx;
if (!data)
return;
memset(data, 0, sizeof(*data));
if (WARN_ON_ONCE((fid1 && fid2) || (!fid1 && !fid2)))
return;
fifo_idx = ffs(fid1) - 1;
if (fid1 && !WARN_ON_ONCE((~BIT(fifo_idx) & fid1) ||
fifo_idx >= MAX_NUM_LMAC)) {
data->size = fwrt->smem_cfg.lmac[fifo_idx].rxfifo1_size;
data->fifo_num = fifo_idx;
return;
}
fifo_idx = ffs(fid2) - 1;
if (fid2 && !WARN_ON_ONCE(fifo_idx != 0)) {
data->size = fwrt->smem_cfg.rxfifo2_size;
data->offset = RXF_DIFF_FROM_PREV;
/* use bit 31 to distinguish between umac and lmac rxf while
* parsing the dump
*/
data->fifo_num = fifo_idx | IWL_RXF_UMAC_BIT;
return;
}
}
static int iwl_dump_ini_rxf_iter(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *range_ptr, int idx)
{
struct iwl_fw_ini_error_dump_range *range = range_ptr;
struct iwl_ini_rxf_data rxf_data;
struct iwl_fw_ini_error_dump_register *reg_dump = (void *)range->data;
u32 offs = le32_to_cpu(reg->offset), addr;
u32 registers_size =
le32_to_cpu(reg->fifos.num_of_registers) * sizeof(*reg_dump);
__le32 *data;
unsigned long flags;
int i;
iwl_ini_get_rxf_data(fwrt, reg, &rxf_data);
if (!rxf_data.size)
return -EIO;
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
return -EBUSY;
range->fifo_hdr.fifo_num = cpu_to_le32(rxf_data.fifo_num);
range->fifo_hdr.num_of_registers = reg->fifos.num_of_registers;
range->range_data_size = cpu_to_le32(rxf_data.size + registers_size);
/*
* read rxf registers. for each register, write to the dump the
* register address and its value
*/
for (i = 0; i < le32_to_cpu(reg->fifos.num_of_registers); i++) {
addr = le32_to_cpu(reg->start_addr[i]) + offs;
reg_dump->addr = cpu_to_le32(addr);
reg_dump->data = cpu_to_le32(iwl_read_prph_no_grab(fwrt->trans,
addr));
reg_dump++;
}
if (reg->fifos.header_only) {
range->range_data_size = cpu_to_le32(registers_size);
goto out;
}
offs = rxf_data.offset;
/* Lock fence */
iwl_write_prph_no_grab(fwrt->trans, RXF_SET_FENCE_MODE + offs, 0x1);
/* Set fence pointer to the same place like WR pointer */
iwl_write_prph_no_grab(fwrt->trans, RXF_LD_WR2FENCE + offs, 0x1);
/* Set fence offset */
iwl_write_prph_no_grab(fwrt->trans, RXF_LD_FENCE_OFFSET_ADDR + offs,
0x0);
/* Read FIFO */
addr = RXF_FIFO_RD_FENCE_INC + offs;
data = (void *)reg_dump;
for (i = 0; i < rxf_data.size; i += sizeof(*data))
*data++ = cpu_to_le32(iwl_read_prph_no_grab(fwrt->trans, addr));
out:
iwl_trans_release_nic_access(fwrt->trans, &flags);
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static void *iwl_dump_ini_mem_fill_header(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *data)
{
struct iwl_fw_ini_error_dump *dump = data;
dump->header.version = cpu_to_le32(IWL_INI_DUMP_VER);
return dump->ranges;
}
static void
*iwl_dump_ini_mon_fill_header(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
struct iwl_fw_ini_monitor_dump *data,
u32 write_ptr_addr, u32 write_ptr_msk,
u32 cycle_cnt_addr, u32 cycle_cnt_msk)
{
u32 write_ptr, cycle_cnt;
unsigned long flags;
if (!iwl_trans_grab_nic_access(fwrt->trans, &flags)) {
IWL_ERR(fwrt, "Failed to get monitor header\n");
return NULL;
}
write_ptr = iwl_read_prph_no_grab(fwrt->trans, write_ptr_addr);
cycle_cnt = iwl_read_prph_no_grab(fwrt->trans, cycle_cnt_addr);
iwl_trans_release_nic_access(fwrt->trans, &flags);
data->header.version = cpu_to_le32(IWL_INI_DUMP_VER);
data->write_ptr = cpu_to_le32(write_ptr & write_ptr_msk);
data->cycle_cnt = cpu_to_le32(cycle_cnt & cycle_cnt_msk);
return data->ranges;
}
static void
*iwl_dump_ini_mon_dram_fill_header(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *data)
{
struct iwl_fw_ini_monitor_dump *mon_dump = (void *)data;
u32 write_ptr_addr, write_ptr_msk, cycle_cnt_addr, cycle_cnt_msk;
switch (fwrt->trans->trans_cfg->device_family) {
case IWL_DEVICE_FAMILY_9000:
case IWL_DEVICE_FAMILY_22000:
write_ptr_addr = MON_BUFF_WRPTR_VER2;
write_ptr_msk = -1;
cycle_cnt_addr = MON_BUFF_CYCLE_CNT_VER2;
cycle_cnt_msk = -1;
break;
default:
IWL_ERR(fwrt, "Unsupported device family %d\n",
fwrt->trans->trans_cfg->device_family);
return NULL;
}
return iwl_dump_ini_mon_fill_header(fwrt, reg, mon_dump, write_ptr_addr,
write_ptr_msk, cycle_cnt_addr,
cycle_cnt_msk);
}
static void
*iwl_dump_ini_mon_smem_fill_header(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg,
void *data)
{
struct iwl_fw_ini_monitor_dump *mon_dump = (void *)data;
const struct iwl_cfg *cfg = fwrt->trans->cfg;
if (fwrt->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
fwrt->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) {
IWL_ERR(fwrt, "Unsupported device family %d\n",
fwrt->trans->trans_cfg->device_family);
return NULL;
}
return iwl_dump_ini_mon_fill_header(fwrt, reg, mon_dump,
cfg->fw_mon_smem_write_ptr_addr,
cfg->fw_mon_smem_write_ptr_msk,
cfg->fw_mon_smem_cycle_cnt_ptr_addr,
cfg->fw_mon_smem_cycle_cnt_ptr_msk);
}
static u32 iwl_dump_ini_mem_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
return le32_to_cpu(reg->internal.num_of_ranges);
}
static u32 iwl_dump_ini_paging_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
if (fwrt->trans->trans_cfg->gen2)
return fwrt->trans->init_dram.paging_cnt;
return fwrt->num_of_paging_blk;
}
static u32 iwl_dump_ini_mon_dram_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
return 1;
}
static u32 iwl_dump_ini_txf_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
u32 num_of_fifos = 0;
while (iwl_ini_txf_iter(fwrt, reg, num_of_fifos))
num_of_fifos++;
return num_of_fifos;
}
static u32 iwl_dump_ini_rxf_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
/* Each Rx fifo needs a different offset and therefore, it's
* region can contain only one fifo, i.e. 1 memory range.
*/
return 1;
}
static u32 iwl_dump_ini_mem_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
return sizeof(struct iwl_fw_ini_error_dump) +
iwl_dump_ini_mem_ranges(fwrt, reg) *
(sizeof(struct iwl_fw_ini_error_dump_range) +
le32_to_cpu(reg->internal.range_data_size));
}
static u32 iwl_dump_ini_paging_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
int i;
u32 range_header_len = sizeof(struct iwl_fw_ini_error_dump_range);
u32 size = sizeof(struct iwl_fw_ini_error_dump);
if (fwrt->trans->trans_cfg->gen2) {
for (i = 0; i < iwl_dump_ini_paging_ranges(fwrt, reg); i++)
size += range_header_len +
fwrt->trans->init_dram.paging[i].size;
} else {
for (i = 1; i <= iwl_dump_ini_paging_ranges(fwrt, reg); i++)
size += range_header_len +
fwrt->fw_paging_db[i].fw_paging_size;
}
return size;
}
static u32 iwl_dump_ini_mon_dram_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
u32 size = sizeof(struct iwl_fw_ini_monitor_dump) +
sizeof(struct iwl_fw_ini_error_dump_range);
if (fwrt->trans->dbg.num_blocks)
size += fwrt->trans->dbg.fw_mon[0].size;
return size;
}
static u32 iwl_dump_ini_mon_smem_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
return sizeof(struct iwl_fw_ini_monitor_dump) +
iwl_dump_ini_mem_ranges(fwrt, reg) *
(sizeof(struct iwl_fw_ini_error_dump_range) +
le32_to_cpu(reg->internal.range_data_size));
}
static u32 iwl_dump_ini_txf_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
struct iwl_txf_iter_data *iter = &fwrt->dump.txf_iter_data;
u32 size = 0;
u32 fifo_hdr = sizeof(struct iwl_fw_ini_error_dump_range) +
le32_to_cpu(reg->fifos.num_of_registers) *
sizeof(struct iwl_fw_ini_error_dump_register);
while (iwl_ini_txf_iter(fwrt, reg, size)) {
size += fifo_hdr;
if (!reg->fifos.header_only)
size += iter->fifo_size;
}
if (size)
size += sizeof(struct iwl_fw_ini_error_dump);
return size;
}
static u32 iwl_dump_ini_rxf_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg)
{
struct iwl_ini_rxf_data rx_data;
u32 size = sizeof(struct iwl_fw_ini_error_dump) +
sizeof(struct iwl_fw_ini_error_dump_range) +
le32_to_cpu(reg->fifos.num_of_registers) *
sizeof(struct iwl_fw_ini_error_dump_register);
if (reg->fifos.header_only)
return size;
iwl_ini_get_rxf_data(fwrt, reg, &rx_data);
size += rx_data.size;
return size;
}
/**
* struct iwl_dump_ini_mem_ops - ini memory dump operations
* @get_num_of_ranges: returns the number of memory ranges in the region.
* @get_size: returns the total size of the region.
* @fill_mem_hdr: fills region type specific headers and returns pointer to
* the first range or NULL if failed to fill headers.
* @fill_range: copies a given memory range into the dump.
* Returns the size of the range or negative error value otherwise.
*/
struct iwl_dump_ini_mem_ops {
u32 (*get_num_of_ranges)(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg);
u32 (*get_size)(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg);
void *(*fill_mem_hdr)(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg, void *data);
int (*fill_range)(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_region_cfg *reg, void *range,
int idx);
};
/**
* iwl_dump_ini_mem
*
* Creates a dump tlv and copy a memory region into it.
* Returns the size of the current dump tlv or 0 if failed
*
* @fwrt: fw runtime struct
* @list: list to add the dump tlv to
* @reg: memory region
* @ops: memory dump operations
*/
static u32 iwl_dump_ini_mem(struct iwl_fw_runtime *fwrt, struct list_head *list,
struct iwl_fw_ini_region_cfg *reg,
const struct iwl_dump_ini_mem_ops *ops)
{
struct iwl_fw_ini_dump_entry *entry;
struct iwl_fw_error_dump_data *tlv;
struct iwl_fw_ini_error_dump_header *header;
u32 num_of_ranges, i, type = le32_to_cpu(reg->region_type), size;
void *range;
if (!ops->get_num_of_ranges || !ops->get_size || !ops->fill_mem_hdr ||
!ops->fill_range)
return 0;
size = ops->get_size(fwrt, reg);
if (!size)
return 0;
entry = kmalloc(sizeof(*entry) + sizeof(*tlv) + size, GFP_KERNEL);
if (!entry)
return 0;
entry->size = sizeof(*tlv) + size;
tlv = (void *)entry->data;
tlv->type = cpu_to_le32(type);
tlv->len = cpu_to_le32(size);
IWL_DEBUG_FW(fwrt, "WRT: Collecting region: id=%d, type=%d\n",
le32_to_cpu(reg->region_id), type);
num_of_ranges = ops->get_num_of_ranges(fwrt, reg);
header = (void *)tlv->data;
header->region_id = reg->region_id;
header->num_of_ranges = cpu_to_le32(num_of_ranges);
header->name_len = cpu_to_le32(min_t(int, IWL_FW_INI_MAX_NAME,
le32_to_cpu(reg->name_len)));
memcpy(header->name, reg->name, le32_to_cpu(header->name_len));
range = ops->fill_mem_hdr(fwrt, reg, header);
if (!range) {
IWL_ERR(fwrt,
"WRT: Failed to fill region header: id=%d, type=%d\n",
le32_to_cpu(reg->region_id), type);
goto out_err;
}
for (i = 0; i < num_of_ranges; i++) {
int range_size = ops->fill_range(fwrt, reg, range, i);
if (range_size < 0) {
IWL_ERR(fwrt,
"WRT: Failed to dump region: id=%d, type=%d\n",
le32_to_cpu(reg->region_id), type);
goto out_err;
}
range = range + range_size;
}
list_add_tail(&entry->list, list);
return entry->size;
out_err:
kfree(entry);
return 0;
}
static u32 iwl_dump_ini_info(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_trigger *trigger,
struct list_head *list)
{
struct iwl_fw_ini_dump_entry *entry;
struct iwl_fw_error_dump_data *tlv;
struct iwl_fw_ini_dump_info *dump;
u32 reg_ids_size = le32_to_cpu(trigger->num_regions) * sizeof(__le32);
u32 size = sizeof(*tlv) + sizeof(*dump) + reg_ids_size;
entry = kmalloc(sizeof(*entry) + size, GFP_KERNEL);
if (!entry)
return 0;
entry->size = size;
tlv = (void *)entry->data;
tlv->type = cpu_to_le32(IWL_INI_DUMP_INFO_TYPE);
tlv->len = cpu_to_le32(sizeof(*dump) + reg_ids_size);
dump = (void *)tlv->data;
dump->version = cpu_to_le32(IWL_INI_DUMP_VER);
dump->trigger_id = trigger->trigger_id;
dump->is_external_cfg =
cpu_to_le32(fwrt->trans->dbg.external_ini_cfg);
dump->ver_type = cpu_to_le32(fwrt->dump.fw_ver.type);
dump->ver_subtype = cpu_to_le32(fwrt->dump.fw_ver.subtype);
dump->hw_step = cpu_to_le32(CSR_HW_REV_STEP(fwrt->trans->hw_rev));
dump->hw_type = cpu_to_le32(CSR_HW_REV_TYPE(fwrt->trans->hw_rev));
dump->rf_id_flavor =
cpu_to_le32(CSR_HW_RFID_FLAVOR(fwrt->trans->hw_rf_id));
dump->rf_id_dash = cpu_to_le32(CSR_HW_RFID_DASH(fwrt->trans->hw_rf_id));
dump->rf_id_step = cpu_to_le32(CSR_HW_RFID_STEP(fwrt->trans->hw_rf_id));
dump->rf_id_type = cpu_to_le32(CSR_HW_RFID_TYPE(fwrt->trans->hw_rf_id));
dump->lmac_major = cpu_to_le32(fwrt->dump.fw_ver.lmac_major);
dump->lmac_minor = cpu_to_le32(fwrt->dump.fw_ver.lmac_minor);
dump->umac_major = cpu_to_le32(fwrt->dump.fw_ver.umac_major);
dump->umac_minor = cpu_to_le32(fwrt->dump.fw_ver.umac_minor);
dump->build_tag_len = cpu_to_le32(sizeof(dump->build_tag));
memcpy(dump->build_tag, fwrt->fw->human_readable,
sizeof(dump->build_tag));
dump->img_name_len = cpu_to_le32(sizeof(dump->img_name));
memcpy(dump->img_name, fwrt->dump.img_name, sizeof(dump->img_name));
dump->internal_dbg_cfg_name_len =
cpu_to_le32(sizeof(dump->internal_dbg_cfg_name));
memcpy(dump->internal_dbg_cfg_name, fwrt->dump.internal_dbg_cfg_name,
sizeof(dump->internal_dbg_cfg_name));
dump->external_dbg_cfg_name_len =
cpu_to_le32(sizeof(dump->external_dbg_cfg_name));
memcpy(dump->external_dbg_cfg_name, fwrt->dump.external_dbg_cfg_name,
sizeof(dump->external_dbg_cfg_name));
dump->regions_num = trigger->num_regions;
memcpy(dump->region_ids, trigger->data, reg_ids_size);
/* add dump info TLV to the beginning of the list since it needs to be
* the first TLV in the dump
*/
list_add(&entry->list, list);
return entry->size;
}
static const struct iwl_dump_ini_mem_ops iwl_dump_ini_region_ops[] = {
[IWL_FW_INI_REGION_INVALID] = {},
[IWL_FW_INI_REGION_DEVICE_MEMORY] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_dev_mem_iter,
},
[IWL_FW_INI_REGION_PERIPHERY_MAC] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_prph_iter,
},
[IWL_FW_INI_REGION_PERIPHERY_PHY] = {},
[IWL_FW_INI_REGION_PERIPHERY_AUX] = {},
[IWL_FW_INI_REGION_DRAM_BUFFER] = {
.get_num_of_ranges = iwl_dump_ini_mon_dram_ranges,
.get_size = iwl_dump_ini_mon_dram_get_size,
.fill_mem_hdr = iwl_dump_ini_mon_dram_fill_header,
.fill_range = iwl_dump_ini_mon_dram_iter,
},
[IWL_FW_INI_REGION_DRAM_IMR] = {},
[IWL_FW_INI_REGION_INTERNAL_BUFFER] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mon_smem_get_size,
.fill_mem_hdr = iwl_dump_ini_mon_smem_fill_header,
.fill_range = iwl_dump_ini_dev_mem_iter,
},
[IWL_FW_INI_REGION_TXF] = {
.get_num_of_ranges = iwl_dump_ini_txf_ranges,
.get_size = iwl_dump_ini_txf_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_txf_iter,
},
[IWL_FW_INI_REGION_RXF] = {
.get_num_of_ranges = iwl_dump_ini_rxf_ranges,
.get_size = iwl_dump_ini_rxf_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_rxf_iter,
},
[IWL_FW_INI_REGION_PAGING] = {
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.get_num_of_ranges = iwl_dump_ini_paging_ranges,
.get_size = iwl_dump_ini_paging_get_size,
.fill_range = iwl_dump_ini_paging_iter,
},
[IWL_FW_INI_REGION_CSR] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_csr_iter,
},
[IWL_FW_INI_REGION_NOTIFICATION] = {},
[IWL_FW_INI_REGION_DHC] = {},
[IWL_FW_INI_REGION_LMAC_ERROR_TABLE] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_dev_mem_iter,
},
[IWL_FW_INI_REGION_UMAC_ERROR_TABLE] = {
.get_num_of_ranges = iwl_dump_ini_mem_ranges,
.get_size = iwl_dump_ini_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_dev_mem_iter,
},
};
static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,
struct iwl_fw_ini_trigger *trigger,
struct list_head *list)
{
int i;
u32 size = 0;
for (i = 0; i < le32_to_cpu(trigger->num_regions); i++) {
u32 reg_id = le32_to_cpu(trigger->data[i]), reg_type;
struct iwl_fw_ini_region_cfg *reg;
if (WARN_ON(reg_id >= ARRAY_SIZE(fwrt->dump.active_regs)))
continue;
reg = fwrt->dump.active_regs[reg_id];
if (!reg) {
IWL_WARN(fwrt,
"WRT: Unassigned region id %d, skipping\n",
reg_id);
continue;
}
/* currently the driver supports always on domain only */
if (le32_to_cpu(reg->domain) != IWL_FW_INI_DBG_DOMAIN_ALWAYS_ON)
continue;
reg_type = le32_to_cpu(reg->region_type);
if (reg_type >= ARRAY_SIZE(iwl_dump_ini_region_ops))
continue;
size += iwl_dump_ini_mem(fwrt, list, reg,
&iwl_dump_ini_region_ops[reg_type]);
}
if (size)
size += iwl_dump_ini_info(fwrt, trigger, list);
return size;
}
static u32 iwl_dump_ini_file_gen(struct iwl_fw_runtime *fwrt,
enum iwl_fw_ini_trigger_id trig_id,
struct list_head *list)
{
struct iwl_fw_ini_dump_entry *entry;
struct iwl_fw_ini_dump_file_hdr *hdr;
struct iwl_fw_ini_trigger *trigger;
u32 size;
if (!iwl_fw_ini_trigger_on(fwrt, trig_id))
return 0;
trigger = fwrt->dump.active_trigs[trig_id].trig;
if (!trigger || !le32_to_cpu(trigger->num_regions))
return 0;
entry = kmalloc(sizeof(*entry) + sizeof(*hdr), GFP_KERNEL);
if (!entry)
return 0;
entry->size = sizeof(*hdr);
size = iwl_dump_ini_trigger(fwrt, trigger, list);
if (!size) {
kfree(entry);
return 0;
}
hdr = (void *)entry->data;
hdr->barker = cpu_to_le32(IWL_FW_INI_ERROR_DUMP_BARKER);
hdr->file_len = cpu_to_le32(size + entry->size);
list_add(&entry->list, list);
return le32_to_cpu(hdr->file_len);
}
static void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt)
{
struct iwl_fw_dump_ptrs fw_error_dump = {};
struct iwl_fw_error_dump_file *dump_file;
struct scatterlist *sg_dump_data;
u32 file_len;
u32 dump_mask = fwrt->fw->dbg.dump_mask;
dump_file = iwl_fw_error_dump_file(fwrt, &fw_error_dump);
if (!dump_file)
goto out;
if (fwrt->dump.monitor_only)
dump_mask &= IWL_FW_ERROR_DUMP_FW_MONITOR;
fw_error_dump.trans_ptr = iwl_trans_dump_data(fwrt->trans, dump_mask);
file_len = le32_to_cpu(dump_file->file_len);
fw_error_dump.fwrt_len = file_len;
if (fw_error_dump.trans_ptr) {
file_len += fw_error_dump.trans_ptr->len;
dump_file->file_len = cpu_to_le32(file_len);
}
sg_dump_data = alloc_sgtable(file_len);
if (sg_dump_data) {
sg_pcopy_from_buffer(sg_dump_data,
sg_nents(sg_dump_data),
fw_error_dump.fwrt_ptr,
fw_error_dump.fwrt_len, 0);
if (fw_error_dump.trans_ptr)
sg_pcopy_from_buffer(sg_dump_data,
sg_nents(sg_dump_data),
fw_error_dump.trans_ptr->data,
fw_error_dump.trans_ptr->len,
fw_error_dump.fwrt_len);
dev_coredumpsg(fwrt->trans->dev, sg_dump_data, file_len,
GFP_KERNEL);
}
vfree(fw_error_dump.fwrt_ptr);
vfree(fw_error_dump.trans_ptr);
out:
iwl_fw_free_dump_desc(fwrt);
}
static void iwl_dump_ini_list_free(struct list_head *list)
{
while (!list_empty(list)) {
struct iwl_fw_ini_dump_entry *entry =
list_entry(list->next, typeof(*entry), list);
list_del(&entry->list);
kfree(entry);
}
}
static void iwl_fw_error_ini_dump(struct iwl_fw_runtime *fwrt, u8 wk_idx)
{
enum iwl_fw_ini_trigger_id trig_id = fwrt->dump.wks[wk_idx].ini_trig_id;
struct list_head dump_list = LIST_HEAD_INIT(dump_list);
struct scatterlist *sg_dump_data;
u32 file_len;
file_len = iwl_dump_ini_file_gen(fwrt, trig_id, &dump_list);
if (!file_len)
goto out;
sg_dump_data = alloc_sgtable(file_len);
if (sg_dump_data) {
struct iwl_fw_ini_dump_entry *entry;
int sg_entries = sg_nents(sg_dump_data);
u32 offs = 0;
list_for_each_entry(entry, &dump_list, list) {
sg_pcopy_from_buffer(sg_dump_data, sg_entries,
entry->data, entry->size, offs);
offs += entry->size;
}
dev_coredumpsg(fwrt->trans->dev, sg_dump_data, file_len,
GFP_KERNEL);
}
iwl_dump_ini_list_free(&dump_list);
out:
fwrt->dump.wks[wk_idx].ini_trig_id = IWL_FW_TRIGGER_ID_INVALID;
}
const struct iwl_fw_dump_desc iwl_dump_desc_assert = {
.trig_desc = {
.type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
},
};
IWL_EXPORT_SYMBOL(iwl_dump_desc_assert);
int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
const struct iwl_fw_dump_desc *desc,
bool monitor_only,
unsigned int delay)
{
u32 trig_type = le32_to_cpu(desc->trig_desc.type);
int ret;
if (iwl_trans_dbg_ini_valid(fwrt->trans)) {
ret = iwl_fw_dbg_ini_collect(fwrt, trig_type);
if (!ret)
iwl_fw_free_dump_desc(fwrt);
return ret;
}
/* use wks[0] since dump flow prior to ini does not need to support
* consecutive triggers collection
*/
if (test_and_set_bit(fwrt->dump.wks[0].idx, &fwrt->dump.active_wks))
return -EBUSY;
if (WARN_ON(fwrt->dump.desc))
iwl_fw_free_dump_desc(fwrt);
IWL_WARN(fwrt, "Collecting data: trigger %d fired.\n",
le32_to_cpu(desc->trig_desc.type));
fwrt->dump.desc = desc;
fwrt->dump.monitor_only = monitor_only;
schedule_delayed_work(&fwrt->dump.wks[0].wk, usecs_to_jiffies(delay));
return 0;
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect_desc);
int iwl_fw_dbg_error_collect(struct iwl_fw_runtime *fwrt,
enum iwl_fw_dbg_trigger trig_type)
{
int ret;
struct iwl_fw_dump_desc *iwl_dump_error_desc;
if (!test_bit(STATUS_DEVICE_ENABLED, &fwrt->trans->status))
return -EIO;
iwl_dump_error_desc = kmalloc(sizeof(*iwl_dump_error_desc), GFP_KERNEL);
if (!iwl_dump_error_desc)
return -ENOMEM;
iwl_dump_error_desc->trig_desc.type = cpu_to_le32(trig_type);
iwl_dump_error_desc->len = 0;
ret = iwl_fw_dbg_collect_desc(fwrt, iwl_dump_error_desc, false, 0);
if (ret)
kfree(iwl_dump_error_desc);
else
iwl_trans_sync_nmi(fwrt->trans);
return ret;
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_error_collect);
int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
enum iwl_fw_dbg_trigger trig,
const char *str, size_t len,
struct iwl_fw_dbg_trigger_tlv *trigger)
{
struct iwl_fw_dump_desc *desc;
unsigned int delay = 0;
bool monitor_only = false;
if (trigger) {
u16 occurrences = le16_to_cpu(trigger->occurrences) - 1;
if (!le16_to_cpu(trigger->occurrences))
return 0;
if (trigger->flags & IWL_FW_DBG_FORCE_RESTART) {
IWL_WARN(fwrt, "Force restart: trigger %d fired.\n",
trig);
iwl_force_nmi(fwrt->trans);
return 0;
}
trigger->occurrences = cpu_to_le16(occurrences);
monitor_only = trigger->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY;
/* convert msec to usec */
delay = le32_to_cpu(trigger->stop_delay) * USEC_PER_MSEC;
}
desc = kzalloc(sizeof(*desc) + len, GFP_ATOMIC);
if (!desc)
return -ENOMEM;
desc->len = len;
desc->trig_desc.type = cpu_to_le32(trig);
memcpy(desc->trig_desc.data, str, len);
return iwl_fw_dbg_collect_desc(fwrt, desc, monitor_only, delay);
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect);
int _iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt,
enum iwl_fw_ini_trigger_id id)
{
struct iwl_fw_ini_active_triggers *active;
u32 occur, delay;
unsigned long idx;
if (WARN_ON(!iwl_fw_ini_trigger_on(fwrt, id)))
return -EINVAL;
if (!iwl_fw_ini_trigger_on(fwrt, id)) {
IWL_WARN(fwrt, "WRT: Trigger %d is not active, aborting dump\n",
id);
return -EINVAL;
}
active = &fwrt->dump.active_trigs[id];
delay = le32_to_cpu(active->trig->dump_delay);
occur = le32_to_cpu(active->trig->occurrences);
if (!occur)
return 0;
active->trig->occurrences = cpu_to_le32(--occur);
if (le32_to_cpu(active->trig->force_restart)) {
IWL_WARN(fwrt, "WRT: Force restart: trigger %d fired.\n", id);
iwl_force_nmi(fwrt->trans);
return 0;
}
/* Check there is an available worker.
* ffz return value is undefined if no zero exists,
* so check against ~0UL first.
*/
if (fwrt->dump.active_wks == ~0UL)
return -EBUSY;
idx = ffz(fwrt->dump.active_wks);
if (idx >= IWL_FW_RUNTIME_DUMP_WK_NUM ||
test_and_set_bit(fwrt->dump.wks[idx].idx, &fwrt->dump.active_wks))
return -EBUSY;
fwrt->dump.wks[idx].ini_trig_id = id;
IWL_WARN(fwrt, "WRT: Collecting data: ini trigger %d fired.\n", id);
schedule_delayed_work(&fwrt->dump.wks[idx].wk, usecs_to_jiffies(delay));
return 0;
}
IWL_EXPORT_SYMBOL(_iwl_fw_dbg_ini_collect);
int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt, u32 legacy_trigger_id)
{
int id;
switch (legacy_trigger_id) {
case FW_DBG_TRIGGER_FW_ASSERT:
case FW_DBG_TRIGGER_ALIVE_TIMEOUT:
case FW_DBG_TRIGGER_DRIVER:
id = IWL_FW_TRIGGER_ID_FW_ASSERT;
break;
case FW_DBG_TRIGGER_USER:
id = IWL_FW_TRIGGER_ID_USER_TRIGGER;
break;
default:
return -EIO;
}
return _iwl_fw_dbg_ini_collect(fwrt, id);
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_ini_collect);
int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
struct iwl_fw_dbg_trigger_tlv *trigger,
const char *fmt, ...)
{
int ret, len = 0;
char buf[64];
if (fmt) {
va_list ap;
buf[sizeof(buf) - 1] = '\0';
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
/* check for truncation */
if (WARN_ON_ONCE(buf[sizeof(buf) - 1]))
buf[sizeof(buf) - 1] = '\0';
len = strlen(buf) + 1;
}
ret = iwl_fw_dbg_collect(fwrt, le32_to_cpu(trigger->id), buf, len,
trigger);
if (ret)
return ret;
return 0;
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect_trig);
int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 conf_id)
{
u8 *ptr;
int ret;
int i;
if (WARN_ONCE(conf_id >= ARRAY_SIZE(fwrt->fw->dbg.conf_tlv),
"Invalid configuration %d\n", conf_id))
return -EINVAL;
/* EARLY START - firmware's configuration is hard coded */
if ((!fwrt->fw->dbg.conf_tlv[conf_id] ||
!fwrt->fw->dbg.conf_tlv[conf_id]->num_of_hcmds) &&
conf_id == FW_DBG_START_FROM_ALIVE)
return 0;
if (!fwrt->fw->dbg.conf_tlv[conf_id])
return -EINVAL;
if (fwrt->dump.conf != FW_DBG_INVALID)
IWL_WARN(fwrt, "FW already configured (%d) - re-configuring\n",
fwrt->dump.conf);
/* Send all HCMDs for configuring the FW debug */
ptr = (void *)&fwrt->fw->dbg.conf_tlv[conf_id]->hcmd;
for (i = 0; i < fwrt->fw->dbg.conf_tlv[conf_id]->num_of_hcmds; i++) {
struct iwl_fw_dbg_conf_hcmd *cmd = (void *)ptr;
struct iwl_host_cmd hcmd = {
.id = cmd->id,
.len = { le16_to_cpu(cmd->len), },
.data = { cmd->data, },
};
ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
if (ret)
return ret;
ptr += sizeof(*cmd);
ptr += le16_to_cpu(cmd->len);
}
fwrt->dump.conf = conf_id;
return 0;
}
IWL_EXPORT_SYMBOL(iwl_fw_start_dbg_conf);
/* this function assumes dump_start was called beforehand and dump_end will be
* called afterwards
*/
static void iwl_fw_dbg_collect_sync(struct iwl_fw_runtime *fwrt, u8 wk_idx)
{
struct iwl_fw_dbg_params params = {0};
if (!test_bit(wk_idx, &fwrt->dump.active_wks))
return;
if (fwrt->ops && fwrt->ops->fw_running &&
!fwrt->ops->fw_running(fwrt->ops_ctx)) {
IWL_ERR(fwrt, "Firmware not running - cannot dump error\n");
iwl_fw_free_dump_desc(fwrt);
goto out;
}
/* there's no point in fw dump if the bus is dead */
if (test_bit(STATUS_TRANS_DEAD, &fwrt->trans->status)) {
IWL_ERR(fwrt, "Skip fw error dump since bus is dead\n");
goto out;
}
iwl_fw_dbg_stop_restart_recording(fwrt, ¶ms, true);
IWL_DEBUG_FW_INFO(fwrt, "WRT: Data collection start\n");
if (iwl_trans_dbg_ini_valid(fwrt->trans))
iwl_fw_error_ini_dump(fwrt, wk_idx);
else
iwl_fw_error_dump(fwrt);
IWL_DEBUG_FW_INFO(fwrt, "WRT: Data collection done\n");
iwl_fw_dbg_stop_restart_recording(fwrt, ¶ms, false);
out:
clear_bit(wk_idx, &fwrt->dump.active_wks);
}
void iwl_fw_error_dump_wk(struct work_struct *work)
{
struct iwl_fw_runtime *fwrt;
typeof(fwrt->dump.wks[0]) *wks;
wks = container_of(work, typeof(fwrt->dump.wks[0]), wk.work);
fwrt = container_of(wks, struct iwl_fw_runtime, dump.wks[wks->idx]);
/* assumes the op mode mutex is locked in dump_start since
* iwl_fw_dbg_collect_sync can't run in parallel
*/
if (fwrt->ops && fwrt->ops->dump_start &&
fwrt->ops->dump_start(fwrt->ops_ctx))
return;
iwl_fw_dbg_collect_sync(fwrt, wks->idx);
if (fwrt->ops && fwrt->ops->dump_end)
fwrt->ops->dump_end(fwrt->ops_ctx);
}
void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt)
{
const struct iwl_cfg *cfg = fwrt->trans->cfg;
if (!iwl_fw_dbg_is_d3_debug_enabled(fwrt))
return;
if (!fwrt->dump.d3_debug_data) {
fwrt->dump.d3_debug_data = kmalloc(cfg->d3_debug_data_length,
GFP_KERNEL);
if (!fwrt->dump.d3_debug_data) {
IWL_ERR(fwrt,
"failed to allocate memory for D3 debug data\n");
return;
}
}
/* if the buffer holds previous debug data it is overwritten */
iwl_trans_read_mem_bytes(fwrt->trans, cfg->d3_debug_data_base_addr,
fwrt->dump.d3_debug_data,
cfg->d3_debug_data_length);
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_read_d3_debug_data);
void iwl_fw_dbg_stop_sync(struct iwl_fw_runtime *fwrt)
{
int i;
iwl_dbg_tlv_del_timers(fwrt->trans);
for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++)
iwl_fw_dbg_collect_sync(fwrt, i);
iwl_fw_dbg_stop_restart_recording(fwrt, NULL, true);
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_stop_sync);
#define FSEQ_REG(x) { .addr = (x), .str = #x, }
void iwl_fw_error_print_fseq_regs(struct iwl_fw_runtime *fwrt)
{
struct iwl_trans *trans = fwrt->trans;
unsigned long flags;
int i;
struct {
u32 addr;
const char *str;
} fseq_regs[] = {
FSEQ_REG(FSEQ_ERROR_CODE),
FSEQ_REG(FSEQ_TOP_INIT_VERSION),
FSEQ_REG(FSEQ_CNVIO_INIT_VERSION),
FSEQ_REG(FSEQ_OTP_VERSION),
FSEQ_REG(FSEQ_TOP_CONTENT_VERSION),
FSEQ_REG(FSEQ_ALIVE_TOKEN),
FSEQ_REG(FSEQ_CNVI_ID),
FSEQ_REG(FSEQ_CNVR_ID),
FSEQ_REG(CNVI_AUX_MISC_CHIP),
FSEQ_REG(CNVR_AUX_MISC_CHIP),
FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM),
FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR),
};
if (!iwl_trans_grab_nic_access(trans, &flags))
return;
IWL_ERR(fwrt, "Fseq Registers:\n");
for (i = 0; i < ARRAY_SIZE(fseq_regs); i++)
IWL_ERR(fwrt, "0x%08X | %s\n",
iwl_read_prph_no_grab(trans, fseq_regs[i].addr),
fseq_regs[i].str);
iwl_trans_release_nic_access(trans, &flags);
}
IWL_EXPORT_SYMBOL(iwl_fw_error_print_fseq_regs);
static int iwl_fw_dbg_suspend_resume_hcmd(struct iwl_trans *trans, bool suspend)
{
struct iwl_dbg_suspend_resume_cmd cmd = {
.operation = suspend ?
cpu_to_le32(DBGC_SUSPEND_CMD) :
cpu_to_le32(DBGC_RESUME_CMD),
};
struct iwl_host_cmd hcmd = {
.id = WIDE_ID(DEBUG_GROUP, DBGC_SUSPEND_RESUME),
.data[0] = &cmd,
.len[0] = sizeof(cmd),
};
return iwl_trans_send_cmd(trans, &hcmd);
}
static void iwl_fw_dbg_stop_recording(struct iwl_trans *trans,
struct iwl_fw_dbg_params *params)
{
if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_7000) {
iwl_set_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x100);
return;
}
if (params) {
params->in_sample = iwl_read_umac_prph(trans, DBGC_IN_SAMPLE);
params->out_ctrl = iwl_read_umac_prph(trans, DBGC_OUT_CTRL);
}
iwl_write_umac_prph(trans, DBGC_IN_SAMPLE, 0);
/* wait for the DBGC to finish writing the internal buffer to DRAM to
* avoid halting the HW while writing
*/
usleep_range(700, 1000);
iwl_write_umac_prph(trans, DBGC_OUT_CTRL, 0);
}
static int iwl_fw_dbg_restart_recording(struct iwl_trans *trans,
struct iwl_fw_dbg_params *params)
{
if (!params)
return -EIO;
if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_7000) {
iwl_clear_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x100);
iwl_clear_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x1);
iwl_set_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x1);
} else {
iwl_write_umac_prph(trans, DBGC_IN_SAMPLE, params->in_sample);
iwl_write_umac_prph(trans, DBGC_OUT_CTRL, params->out_ctrl);
}
return 0;
}
void iwl_fw_dbg_stop_restart_recording(struct iwl_fw_runtime *fwrt,
struct iwl_fw_dbg_params *params,
bool stop)
{
int ret = 0;
if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status))
return;
if (fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_DBG_SUSPEND_RESUME_CMD_SUPP))
ret = iwl_fw_dbg_suspend_resume_hcmd(fwrt->trans, stop);
else if (stop)
iwl_fw_dbg_stop_recording(fwrt->trans, params);
else
ret = iwl_fw_dbg_restart_recording(fwrt->trans, params);
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (!ret) {
if (stop)
fwrt->trans->dbg.rec_on = false;
else
iwl_fw_set_dbg_rec_on(fwrt);
}
#endif
}
IWL_EXPORT_SYMBOL(iwl_fw_dbg_stop_restart_recording);