/*
 * kexec: Linux boots Linux
 *
 * Copyright (C) 2003-2005  Eric Biederman (ebiederm@xmission.com)
 * Copyright (C) 2004 Albert Herranz
 * Copyright (C) 2004 Silicon Graphics, Inc.
 *   Jesse Barnes <jbarnes@sgi.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation (version 2 of the License).
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#define _GNU_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <getopt.h>
#include <sys/utsname.h>
#include "../../kexec.h"
#include "../../kexec-syscall.h"
#include "kexec-ia64.h"
#include <arch/options.h>

#define MAX_MEMORY_RANGES 64
#define MAX_LINE 160
static struct memory_range memory_range[MAX_MEMORY_RANGES];

/* Return a sorted list of available memory ranges. */
int get_memory_ranges(struct memory_range **range, int *ranges,
				unsigned long kexec_flags)
{
	int memory_ranges;
	/*
	 * /proc/iomem on ia64 does not show where all memory is. If
	 * that is fixed up, we can make use of that to validate
	 * the memory range kernel will be loade din. Until then.....
	 * -- Khalid Aziz
	 */
	
	/* Note that the ia64 architecture mandates all systems will
	 * have at least 64MB at 0-64M.  The SGI altix does not follow
	 * that restriction, but a reasonable guess is better than nothing
	 * at all.
	 * -- Eric Biederman
	 */
	fprintf(stderr, "Warning assuming memory at 0-64MB is present\n");
	memory_ranges = 0;
	memory_range[memory_ranges].start = 0x00010000;
	memory_range[memory_ranges].end   = 0x10000000;
	memory_range[memory_ranges].type  = RANGE_RAM;
	memory_ranges++;
	*range = memory_range;
	*ranges = memory_ranges;
	return 0;
}

/* Supported file types and callbacks */
struct file_type file_type[] = {
       {"elf-ia64", elf_ia64_probe, elf_ia64_load, elf_ia64_usage},
};
int file_types = sizeof(file_type) / sizeof(file_type[0]);


void arch_usage(void)
{
}

static struct {
} arch_options = {
};
int arch_process_options(int argc, char **argv)
{
	static const struct option options[] = {
		KEXEC_ARCH_OPTIONS
		{ 0, 			0, NULL, 0 },
	};
	static const char short_options[] = KEXEC_ARCH_OPT_STR;
	int opt;
	unsigned long value;
	char *end;

	opterr = 0; /* Don't complain about unrecognized options here */
	while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
		switch(opt) {
		default:
			break;
		}
	}
	/* Reset getopt for the next pass; called in other source modules */
	opterr = 1;
	optind = 1;
	return 0;
}

int arch_compat_trampoline(struct kexec_info *info)
{
	int result;
	struct utsname utsname;
	result = uname(&utsname);
	if (result < 0) {
		fprintf(stderr, "uname failed: %s\n",
			strerror(errno));
		return -1;
	}
	if (strcmp(utsname.machine, "ia64") == 0)
	{
		info->kexec_flags |= KEXEC_ARCH_X86_64;
	}
	else {
		fprintf(stderr, "Unsupported machine type: %s\n",
			utsname.machine);
		return -1;
	}
	return 0;
}

int arch_compat_trampoline(struct kexec_info *info)
{
	int result;
	struct utsname utsname;
	result = uname(&utsname);
	if (result < 0) {
		fprintf(stderr, "uname failed: %s\n",
			strerror(errno));
		return -1;
	}
	if (strcmp(utsname.machine, "ia64") == 0)
	{
		/* For compatibility with older patches 
		 * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_IA64 here.
		 */
		info->kexec_flags |= KEXEC_ARCH_DEFAULT;
	}
	else {
		fprintf(stderr, "Unsupported machine type: %s\n",
			utsname.machine);
		return -1;
	}
	return 0;
}

void arch_update_purgatory(struct kexec_info *info)
{
}