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/*
* arch/sh/boot/compressed/misc_64.c
*
* This is a collection of several routines from gzip-1.0.3
* adapted for Linux.
*
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
*
* Adapted for SHmedia from sh by Stuart Menefy, May 2002
*/
#include <asm/uaccess.h>
/* cache.c */
#define CACHE_ENABLE 0
#define CACHE_DISABLE 1
int cache_control(unsigned int command);
/*
* gzip declarations
*/
#define STATIC static
#undef memset
#undef memcpy
#define memzero(s, n) memset ((s), 0, (n))
static void error(char *m);
extern char input_data[];
extern int input_len;
static unsigned char *output_data;
static void puts(const char *);
extern int _text; /* Defined in vmlinux.lds.S */
extern int _end;
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#define HEAP_SIZE 0x400000
#else
#define HEAP_SIZE 0x10000
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
void puts(const char *s)
{
}
void *memset(void *s, int c, size_t n)
{
int i;
char *ss = (char *) s;
for (i = 0; i < n; i++)
ss[i] = c;
return s;
}
void *memcpy(void *__dest, __const void *__src, size_t __n)
{
int i;
char *d = (char *) __dest, *s = (char *) __src;
for (i = 0; i < __n; i++)
d[i] = s[i];
return __dest;
}
static void error(char *x)
{
puts("\n\n");
puts(x);
puts("\n\n -- System halted");
while (1) ; /* Halt */
}
#define STACK_SIZE (4096)
long __attribute__ ((aligned(8))) user_stack[STACK_SIZE];
long *stack_start = &user_stack[STACK_SIZE];
void decompress_kernel(void)
{
output_data = (unsigned char *) (CONFIG_MEMORY_START + 0x2000);
free_mem_ptr = (unsigned long) &_end;
free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
puts("Uncompressing Linux... ");
cache_control(CACHE_ENABLE);
decompress(input_data, input_len, NULL, NULL, output_data, NULL, error);
cache_control(CACHE_DISABLE);
puts("Ok, booting the kernel.\n");
}
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