arch/arm/mach-msm/scm-xpu.c

/* Copyright (c) 2013, 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/init.h>
#include <linux/kernel.h>

#include <mach/scm.h>

#define ERR_FATAL_ENABLE 0x0
#define ERR_FATAL_DISABLE 0x1
#define ERR_FATAL_READ 0x2
#define XPU_ERR_FATAL 0xe

static int __init xpu_err_fatal_init(void)
{
	int ret, response;
	struct {
		unsigned int config;
		unsigned int spare;
	} cmd;
	cmd.config = ERR_FATAL_ENABLE;
	cmd.spare = 0;

	ret = scm_call(SCM_SVC_MP, XPU_ERR_FATAL, &cmd, sizeof(cmd), &response,
			sizeof(response));

	if (ret != 0)
		pr_warn("Failed to set XPU violations as fatal errors: %d\n",
			ret);
	else
		pr_info("Configuring XPU violations to be fatal errors\n");

	return ret;
}
early_initcall(xpu_err_fatal_init);