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/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 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.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/kallsyms.h>
#include <linux/slab.h>
#include <soc/qcom/memory_dump.h>
#define MISC_DUMP_DATA_LEN 4096
#define PMIC_DUMP_DATA_LEN 4096
void register_misc_dump(void)
{
void *misc_buf;
int ret;
struct msm_dump_entry dump_entry;
struct msm_dump_data *misc_data;
if (MSM_DUMP_MAJOR(msm_dump_table_version()) > 1) {
misc_data = kzalloc(sizeof(struct msm_dump_data), GFP_KERNEL);
if (!misc_data) {
pr_err("misc dump data structure allocation failed\n");
return;
}
misc_buf = kzalloc(MISC_DUMP_DATA_LEN, GFP_KERNEL);
if (!misc_buf) {
pr_err("misc buffer space allocation failed\n");
goto err0;
}
misc_data->addr = virt_to_phys(misc_buf);
misc_data->len = MISC_DUMP_DATA_LEN;
dump_entry.id = MSM_DUMP_DATA_MISC;
dump_entry.addr = virt_to_phys(misc_data);
ret = msm_dump_data_register(MSM_DUMP_TABLE_APPS, &dump_entry);
if (ret) {
pr_err("Registering misc dump region failed\n");
goto err1;
}
return;
err1:
kfree(misc_buf);
err0:
kfree(misc_data);
}
}
static void register_pmic_dump(void)
{
static void *dump_addr;
int ret;
struct msm_dump_entry dump_entry;
struct msm_dump_data *dump_data;
if (MSM_DUMP_MAJOR(msm_dump_table_version()) > 1) {
dump_data = kzalloc(sizeof(struct msm_dump_data), GFP_KERNEL);
if (!dump_data) {
pr_err("dump data structure allocation failed\n");
return;
}
dump_addr = kzalloc(PMIC_DUMP_DATA_LEN, GFP_KERNEL);
if (!dump_addr) {
pr_err("buffer space allocation failed\n");
goto err0;
}
dump_data->addr = virt_to_phys(dump_addr);
dump_data->len = PMIC_DUMP_DATA_LEN;
dump_entry.id = MSM_DUMP_DATA_PMIC;
dump_entry.addr = virt_to_phys(dump_data);
ret = msm_dump_data_register(MSM_DUMP_TABLE_APPS, &dump_entry);
if (ret) {
pr_err("Registering pmic dump region failed\n");
goto err1;
}
return;
err1:
kfree(dump_addr);
err0:
kfree(dump_data);
}
}
static void __init common_log_register_log_buf(void)
{
char **log_bufp;
uint32_t *log_buf_lenp;
uint32_t *fist_idxp;
struct msm_client_dump dump_log_buf, dump_first_idx;
struct msm_dump_entry entry_log_buf, entry_first_idx;
struct msm_dump_data *dump_data;
log_bufp = (char **)kallsyms_lookup_name("log_buf");
log_buf_lenp = (uint32_t *)kallsyms_lookup_name("log_buf_len");
if (!log_bufp || !log_buf_lenp) {
pr_err("Unable to find log_buf by kallsyms!\n");
return;
}
fist_idxp = (uint32_t *)kallsyms_lookup_name("log_first_idx");
if (MSM_DUMP_MAJOR(msm_dump_table_version()) == 1) {
dump_log_buf.id = MSM_LOG_BUF;
dump_log_buf.start_addr = virt_to_phys(*log_bufp);
dump_log_buf.end_addr = virt_to_phys(*log_bufp + *log_buf_lenp);
if (msm_dump_tbl_register(&dump_log_buf))
pr_err("Unable to register %d.\n", dump_log_buf.id);
dump_first_idx.id = MSM_LOG_BUF_FIRST_IDX;
if (fist_idxp) {
dump_first_idx.start_addr = virt_to_phys(fist_idxp);
if (msm_dump_tbl_register(&dump_first_idx))
pr_err("Unable to register %d.\n",
dump_first_idx.id);
}
} else {
dump_data = kzalloc(sizeof(struct msm_dump_data),
GFP_KERNEL);
if (!dump_data) {
pr_err("Unable to alloc data space.\n");
return;
}
dump_data->len = *log_buf_lenp;
dump_data->addr = virt_to_phys(*log_bufp);
entry_log_buf.id = MSM_DUMP_DATA_LOG_BUF;
entry_log_buf.addr = virt_to_phys(dump_data);
if (msm_dump_data_register(MSM_DUMP_TABLE_APPS,
&entry_log_buf)) {
kfree(dump_data);
pr_err("Unable to register %d.\n", entry_log_buf.id);
}
if (fist_idxp) {
dump_data = kzalloc(sizeof(struct msm_dump_data),
GFP_KERNEL);
if (!dump_data) {
pr_err("Unable to alloc data space.\n");
return;
}
dump_data->addr = virt_to_phys(fist_idxp);
entry_first_idx.id = MSM_DUMP_DATA_LOG_BUF_FIRST_IDX;
entry_first_idx.addr = virt_to_phys(dump_data);
if (msm_dump_data_register(MSM_DUMP_TABLE_APPS,
&entry_first_idx))
pr_err("Unable to register %d.\n",
entry_first_idx.id);
}
}
}
static int __init msm_common_log_init(void)
{
common_log_register_log_buf();
register_misc_dump();
register_pmic_dump();
return 0;
}
late_initcall(msm_common_log_init);
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