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Commit 834ecb05 authored by Rishabh Bhatnagar's avatar Rishabh Bhatnagar
Browse files

soc: qcom: Register minidump entries for memory dump driver 



Add memory dump table entries to minidump table.

Change-Id: I327c33882443fe954f06dc2bffeaf5e7daac9712
Signed-off-by: default avatarRishabh Bhatnagar <rishabhb@codeaurora.org>
parent faf069a5

drivers/soc/qcom/memory_dump_v2.c

+34 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.

 * Copyright (c) 2014-2017, 2019, The Linux Foundation. All rights reserved.

 */



#include <asm/cacheflush.h>
@@ -11,6 +11,7 @@ 
#include <linux/err.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <soc/qcom/minidump.h>

#include <soc/qcom/memory_dump.h>

#include <soc/qcom/scm.h>

#include <linux/of_device.h>
@@ -83,6 +84,33 @@ static struct msm_dump_table *msm_dump_get_table(enum msm_dump_table_ids id) 
	return table;

}



static int msm_dump_data_add_minidump(struct msm_dump_entry *entry)

{

	struct msm_dump_data *data;

	struct md_region md_entry;



	data = (struct msm_dump_data *)(phys_to_virt(entry->addr));



	if (!data->addr || !data->len)

		return -EINVAL;



	if (!strcmp(data->name, "")) {

		pr_debug("Entry name is NULL, Use ID %d for minidump\n",

			entry->id);

		snprintf(md_entry.name, sizeof(md_entry.name), "KMDT0x%X",

			entry->id);

	} else {

		strlcpy(md_entry.name, data->name, sizeof(md_entry.name));

	}



	md_entry.phys_addr = data->addr;

	md_entry.virt_addr = (uintptr_t)phys_to_virt(data->addr);

	md_entry.size = data->len;

	md_entry.id = entry->id;



	return msm_minidump_add_region(&md_entry);

}



int msm_dump_data_register(enum msm_dump_table_ids id,

			   struct msm_dump_entry *entry)

{
@@ -103,6 +131,9 @@ int msm_dump_data_register(enum msm_dump_table_ids id, 
	table->num_entries++;



	dmac_flush_range(table, (void *)table + sizeof(struct msm_dump_table));

	if (msm_dump_data_add_minidump(entry))

		pr_err("Failed to add entry in Minidump table\n");



	return 0;

}

EXPORT_SYMBOL(msm_dump_data_register);
@@ -240,6 +271,8 @@ static int mem_dump_probe(struct platform_device *pdev) 
		dump_data->addr = dump_addr;

		dump_data->len = size;

		dump_entry.id = id;

		strlcpy(dump_data->name, child_node->name,

					sizeof(dump_data->name));

		dump_entry.addr = virt_to_phys(dump_data);

		ret = msm_dump_data_register(MSM_DUMP_TABLE_APPS, &dump_entry);

		if (ret) {