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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 17:09:41 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 17:09:41 -0500
commit2741ecb4ce5c2d430b5c44b0a169038338c21df5 (patch)
tree4aa71d7551184ee88f32c7f3660d821133058c32 /arch/arm/boot/compressed/misc.c
parentbc85e585c6d0fab4bde12d60964b2f25802c3163 (diff)
parent5de813b6cd06460b337f9da9afe316823cf3ef45 (diff)
Merge branch 'misc2' into devel
Diffstat (limited to 'arch/arm/boot/compressed/misc.c')
-rw-r--r--arch/arm/boot/compressed/misc.c109
1 files changed, 11 insertions, 98 deletions
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 56a0d116d271..d32bc71c1f78 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -23,8 +23,8 @@ unsigned int __machine_arch_type;
23#include <linux/compiler.h> /* for inline */ 23#include <linux/compiler.h> /* for inline */
24#include <linux/types.h> /* for size_t */ 24#include <linux/types.h> /* for size_t */
25#include <linux/stddef.h> /* for NULL */ 25#include <linux/stddef.h> /* for NULL */
26#include <asm/string.h>
27#include <linux/linkage.h> 26#include <linux/linkage.h>
27#include <asm/string.h>
28 28
29#include <asm/unaligned.h> 29#include <asm/unaligned.h>
30 30
@@ -117,57 +117,7 @@ static void putstr(const char *ptr)
117 117
118#endif 118#endif
119 119
120#define __ptr_t void * 120void *memcpy(void *__dest, __const void *__src, size_t __n)
121
122#define memzero(s,n) __memzero(s,n)
123
124/*
125 * Optimised C version of memzero for the ARM.
126 */
127void __memzero (__ptr_t s, size_t n)
128{
129 union { void *vp; unsigned long *ulp; unsigned char *ucp; } u;
130 int i;
131
132 u.vp = s;
133
134 for (i = n >> 5; i > 0; i--) {
135 *u.ulp++ = 0;
136 *u.ulp++ = 0;
137 *u.ulp++ = 0;
138 *u.ulp++ = 0;
139 *u.ulp++ = 0;
140 *u.ulp++ = 0;
141 *u.ulp++ = 0;
142 *u.ulp++ = 0;
143 }
144
145 if (n & 1 << 4) {
146 *u.ulp++ = 0;
147 *u.ulp++ = 0;
148 *u.ulp++ = 0;
149 *u.ulp++ = 0;
150 }
151
152 if (n & 1 << 3) {
153 *u.ulp++ = 0;
154 *u.ulp++ = 0;
155 }
156
157 if (n & 1 << 2)
158 *u.ulp++ = 0;
159
160 if (n & 1 << 1) {
161 *u.ucp++ = 0;
162 *u.ucp++ = 0;
163 }
164
165 if (n & 1)
166 *u.ucp++ = 0;
167}
168
169static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
170 size_t __n)
171{ 121{
172 int i = 0; 122 int i = 0;
173 unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src; 123 unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
@@ -204,59 +154,20 @@ static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
204/* 154/*
205 * gzip delarations 155 * gzip delarations
206 */ 156 */
207#define STATIC static
208
209/* Diagnostic functions */
210#ifdef DEBUG
211# define Assert(cond,msg) {if(!(cond)) error(msg);}
212# define Trace(x) fprintf x
213# define Tracev(x) {if (verbose) fprintf x ;}
214# define Tracevv(x) {if (verbose>1) fprintf x ;}
215# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
216# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
217#else
218# define Assert(cond,msg)
219# define Trace(x)
220# define Tracev(x)
221# define Tracevv(x)
222# define Tracec(c,x)
223# define Tracecv(c,x)
224#endif
225
226static void error(char *m);
227
228extern char input_data[]; 157extern char input_data[];
229extern char input_data_end[]; 158extern char input_data_end[];
230 159
231static unsigned char *output_data; 160unsigned char *output_data;
232static unsigned long output_ptr; 161unsigned long output_ptr;
233
234static void error(char *m);
235 162
236static void putstr(const char *); 163unsigned long free_mem_ptr;
237 164unsigned long free_mem_end_ptr;
238static unsigned long free_mem_ptr;
239static unsigned long free_mem_end_ptr;
240
241#ifdef STANDALONE_DEBUG
242#define NO_INFLATE_MALLOC
243#endif
244
245#define ARCH_HAS_DECOMP_WDOG
246
247#ifdef CONFIG_KERNEL_GZIP
248#include "../../../../lib/decompress_inflate.c"
249#endif
250
251#ifdef CONFIG_KERNEL_LZO
252#include "../../../../lib/decompress_unlzo.c"
253#endif
254 165
255#ifndef arch_error 166#ifndef arch_error
256#define arch_error(x) 167#define arch_error(x)
257#endif 168#endif
258 169
259static void error(char *x) 170void error(char *x)
260{ 171{
261 arch_error(x); 172 arch_error(x);
262 173
@@ -272,6 +183,8 @@ asmlinkage void __div0(void)
272 error("Attempting division by 0!"); 183 error("Attempting division by 0!");
273} 184}
274 185
186extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
187
275#ifndef STANDALONE_DEBUG 188#ifndef STANDALONE_DEBUG
276 189
277unsigned long 190unsigned long
@@ -292,8 +205,8 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
292 output_ptr = get_unaligned_le32(tmp); 205 output_ptr = get_unaligned_le32(tmp);
293 206
294 putstr("Uncompressing Linux..."); 207 putstr("Uncompressing Linux...");
295 decompress(input_data, input_data_end - input_data, 208 do_decompress(input_data, input_data_end - input_data,
296 NULL, NULL, output_data, NULL, error); 209 output_data, error);
297 putstr(" done, booting the kernel.\n"); 210 putstr(" done, booting the kernel.\n");
298 return output_ptr; 211 return output_ptr;
299} 212}