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1/*
2 * arch/sh/boot/compressed/misc.c
3 *
4 * This is a collection of several routines from gzip-1.0.3
5 * adapted for Linux.
6 *
7 * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
8 *
9 * Adapted for SH by Stuart Menefy, Aug 1999
10 *
11 * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
12 */
13
14#include <asm/uaccess.h>
15#include <asm/addrspace.h>
16#include <asm/page.h>
17
18/*
19 * gzip declarations
20 */
21
22#define STATIC static
23
24#undef memset
25#undef memcpy
26#define memzero(s, n) memset ((s), 0, (n))
27
28/* cache.c */
29#define CACHE_ENABLE 0
30#define CACHE_DISABLE 1
31int cache_control(unsigned int command);
32
33extern char input_data[];
34extern int input_len;
35static unsigned char *output;
36
37static void error(char *m);
38
39int puts(const char *);
40
41extern int _text; /* Defined in vmlinux.lds.S */
42extern int _end;
43static unsigned long free_mem_ptr;
44static unsigned long free_mem_end_ptr;
45
46#ifdef CONFIG_HAVE_KERNEL_BZIP2
47#define HEAP_SIZE 0x400000
48#else
49#define HEAP_SIZE 0x10000
50#endif
51
52#ifdef CONFIG_KERNEL_GZIP
53#include "../../../../lib/decompress_inflate.c"
54#endif
55
56#ifdef CONFIG_KERNEL_BZIP2
57#include "../../../../lib/decompress_bunzip2.c"
58#endif
59
60#ifdef CONFIG_KERNEL_LZMA
61#include "../../../../lib/decompress_unlzma.c"
62#endif
63
64#ifdef CONFIG_KERNEL_XZ
65#include "../../../../lib/decompress_unxz.c"
66#endif
67
68#ifdef CONFIG_KERNEL_LZO
69#include "../../../../lib/decompress_unlzo.c"
70#endif
71
72int puts(const char *s)
73{
74 /* This should be updated to use the sh-sci routines */
75 return 0;
76}
77
78void* memset(void* s, int c, size_t n)
79{
80 int i;
81 char *ss = (char*)s;
82
83 for (i=0;i<n;i++) ss[i] = c;
84 return s;
85}
86
87void* memcpy(void* __dest, __const void* __src,
88 size_t __n)
89{
90 int i;
91 char *d = (char *)__dest, *s = (char *)__src;
92
93 for (i=0;i<__n;i++) d[i] = s[i];
94 return __dest;
95}
96
97static void error(char *x)
98{
99 puts("\n\n");
100 puts(x);
101 puts("\n\n -- System halted");
102
103 while(1); /* Halt */
104}
105
106#ifdef CONFIG_SUPERH64
107#define stackalign 8
108#else
109#define stackalign 4
110#endif
111
112#define STACK_SIZE (4096)
113long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE];
114long *stack_start = &user_stack[STACK_SIZE];
115
116void decompress_kernel(void)
117{
118 unsigned long output_addr;
119
120#ifdef CONFIG_SUPERH64
121 output_addr = (CONFIG_MEMORY_START + 0x2000);
122#else
123 output_addr = __pa((unsigned long)&_text+PAGE_SIZE);
124#if defined(CONFIG_29BIT)
125 output_addr |= P2SEG;
126#endif
127#endif
128
129 output = (unsigned char *)output_addr;
130 free_mem_ptr = (unsigned long)&_end;
131 free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
132
133 puts("Uncompressing Linux... ");
134 cache_control(CACHE_ENABLE);
135 decompress(input_data, input_len, NULL, NULL, output, NULL, error);
136 cache_control(CACHE_DISABLE);
137 puts("Ok, booting the kernel.\n");
138}
1/*
2 * arch/sh/boot/compressed/misc.c
3 *
4 * This is a collection of several routines from gzip-1.0.3
5 * adapted for Linux.
6 *
7 * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
8 *
9 * Adapted for SH by Stuart Menefy, Aug 1999
10 *
11 * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
12 */
13
14#include <asm/uaccess.h>
15#include <asm/addrspace.h>
16#include <asm/page.h>
17
18/*
19 * gzip declarations
20 */
21
22#define STATIC static
23
24#undef memset
25#undef memcpy
26#define memzero(s, n) memset ((s), 0, (n))
27
28/* cache.c */
29#define CACHE_ENABLE 0
30#define CACHE_DISABLE 1
31int cache_control(unsigned int command);
32
33extern char input_data[];
34extern int input_len;
35static unsigned char *output;
36
37static void error(char *m);
38
39int puts(const char *);
40
41extern int _text; /* Defined in vmlinux.lds.S */
42extern int _end;
43static unsigned long free_mem_ptr;
44static unsigned long free_mem_end_ptr;
45
46#ifdef CONFIG_HAVE_KERNEL_BZIP2
47#define HEAP_SIZE 0x400000
48#else
49#define HEAP_SIZE 0x10000
50#endif
51
52#ifdef CONFIG_KERNEL_GZIP
53#include "../../../../lib/decompress_inflate.c"
54#endif
55
56#ifdef CONFIG_KERNEL_BZIP2
57#include "../../../../lib/decompress_bunzip2.c"
58#endif
59
60#ifdef CONFIG_KERNEL_LZMA
61#include "../../../../lib/decompress_unlzma.c"
62#endif
63
64#ifdef CONFIG_KERNEL_XZ
65#include "../../../../lib/decompress_unxz.c"
66#endif
67
68#ifdef CONFIG_KERNEL_LZO
69#include "../../../../lib/decompress_unlzo.c"
70#endif
71
72int puts(const char *s)
73{
74 /* This should be updated to use the sh-sci routines */
75 return 0;
76}
77
78void* memset(void* s, int c, size_t n)
79{
80 int i;
81 char *ss = (char*)s;
82
83 for (i=0;i<n;i++) ss[i] = c;
84 return s;
85}
86
87void* memcpy(void* __dest, __const void* __src,
88 size_t __n)
89{
90 int i;
91 char *d = (char *)__dest, *s = (char *)__src;
92
93 for (i=0;i<__n;i++) d[i] = s[i];
94 return __dest;
95}
96
97static void error(char *x)
98{
99 puts("\n\n");
100 puts(x);
101 puts("\n\n -- System halted");
102
103 while(1); /* Halt */
104}
105
106#ifdef CONFIG_SUPERH64
107#define stackalign 8
108#else
109#define stackalign 4
110#endif
111
112#define STACK_SIZE (4096)
113long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE];
114long *stack_start = &user_stack[STACK_SIZE];
115
116void decompress_kernel(void)
117{
118 unsigned long output_addr;
119
120#ifdef CONFIG_SUPERH64
121 output_addr = (CONFIG_MEMORY_START + 0x2000);
122#else
123 output_addr = __pa((unsigned long)&_text+PAGE_SIZE);
124#if defined(CONFIG_29BIT)
125 output_addr |= P2SEG;
126#endif
127#endif
128
129 output = (unsigned char *)output_addr;
130 free_mem_ptr = (unsigned long)&_end;
131 free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
132
133 puts("Uncompressing Linux... ");
134 cache_control(CACHE_ENABLE);
135 decompress(input_data, input_len, NULL, NULL, output, NULL, error);
136 cache_control(CACHE_DISABLE);
137 puts("Ok, booting the kernel.\n");
138}