patch-2.4.10 linux/arch/ppc/boot/pmac/coffmain.c

• Lines: 252
• Date: Tue Aug 28 06:58:33 2001
• Orig file: v2.4.9/linux/arch/ppc/boot/pmac/coffmain.c
• Orig date: Tue Jul 3 17:08:18 2001

diff -u --recursive --new-file v2.4.9/linux/arch/ppc/boot/pmac/coffmain.c linux/arch/ppc/boot/pmac/coffmain.c
@@ -1,5 +1,5 @@
 /*
- * BK Id: SCCS/s.coffmain.c 1.12 06/12/01 16:42:26 paulus
+ * BK Id: SCCS/s.coffmain.c 1.14 07/27/01 20:24:18 trini
  */
 /*
  * Copyright (C) Paul Mackerras 1997.
@@ -11,18 +11,25 @@
  */
 #include "nonstdio.h"
 #include "zlib.h"
-#include <asm/bootinfo.h>
 #include <asm/processor.h>
-#include <asm/page.h>
 
-extern void *finddevice(const char *);
-extern int getprop(void *, const char *, void *, int);
+extern char _start[], _end[];
 extern char *claim(unsigned, unsigned, unsigned);
-void make_bi_recs(unsigned long);
-void gunzip(void *, int, unsigned char *, int *);
+extern char image_data[], initrd_data[];
+extern int initrd_len, image_len;
+extern int getprop(void *, const char *, void *, int);
+extern unsigned int heap_max;
+extern void *finddevice(const char *);
+extern void flush_cache(void *start, unsigned int len);
+extern void gunzip(void *, int, unsigned char *, int *);
+extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
+		unsigned int progend);
+extern void pause(void);
+extern void setup_bats(unsigned long start);
 
-#define get_16be(x)	(*(unsigned short *)(x))
-#define get_32be(x)	(*(unsigned *)(x))
+char *avail_ram;
+char *begin_avail, *end_avail;
+char *avail_high;
 
 #define RAM_START	0
 #define RAM_END		(RAM_START + 0x800000)	/* only 8M mapped with BATs */
@@ -32,29 +39,16 @@
 
 #define SCRATCH_SIZE	(128 << 10)
 
-char *avail_ram;
-char *begin_avail, *end_avail;
-char *avail_high;
-unsigned int heap_use;
-unsigned int heap_max;
-
-extern char _start[], _end[];
-extern char image_data[];
-extern int image_len;
-extern char initrd_data[];
-extern int initrd_len;
+static char heap[SCRATCH_SIZE];
 
-char heap[SCRATCH_SIZE];
-
-boot(int a1, int a2, void *prom)
+void boot(int a1, int a2, void *prom)
 {
-    int ns, oh, i;
     unsigned sa, len;
     void *dst;
     unsigned char *im;
     unsigned initrd_start, initrd_size;
     
-    printf("coffboot starting: loaded at 0x%x\n", _start);
+    printf("coffboot starting: loaded at 0x%p\n", &_start);
     setup_bats(RAM_START);
     if (initrd_len) {
 	initrd_size = initrd_len;
@@ -62,21 +56,21 @@
 	a1 = initrd_start;
 	a2 = initrd_size;
 	claim(initrd_start - RAM_START, RAM_END - initrd_start, 0);
-	printf("initial ramdisk moving 0x%x <- 0x%x (%x bytes)\n",
+	printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n",
 	       initrd_start, initrd_data, initrd_size);
 	memcpy((char *)initrd_start, initrd_data, initrd_size);
     }
     im = image_data;
     len = image_len;
-    /* claim 3MB starting at 0 */
+    /* claim 4MB starting at 0 */
     claim(0, PROG_SIZE, 0);
     dst = (void *) RAM_START;
     if (im[0] == 0x1f && im[1] == 0x8b) {
 	/* set up scratch space */
 	begin_avail = avail_high = avail_ram = heap;
 	end_avail = heap + sizeof(heap);
-	printf("heap at 0x%x\n", avail_ram);
-	printf("gunzipping (0x%x <- 0x%x:0x%0x)...", dst, im, im+len);
+	printf("heap at 0x%p\n", avail_ram);
+	printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
 	gunzip(dst, PROG_SIZE, im, &len);
 	printf("done %u bytes\n", len);
 	printf("%u bytes of heap consumed, max in use %u\n",
@@ -86,8 +80,9 @@
     }
 
     flush_cache(dst, len);
-    make_bi_recs((unsigned long)dst + len);
-    
+    make_bi_recs(((unsigned long) dst + len), "coffboot", _MACH_Pmac,
+		    (PROG_START + PROG_SIZE));
+
     sa = (unsigned long)PROG_START;
     printf("start address = 0x%x\n", sa);
 
@@ -96,139 +91,4 @@
     printf("returned?\n");
 
     pause();
-}
-
-void make_bi_recs(unsigned long addr)
-{
-	struct bi_record *rec;
-
-	addr = _ALIGN(addr+ (1<<20) - 1, (1<<20));
-#if 0
-	if (addr >= PROG_START + PROG_SIZE)
-		claim(addr, 0x1000, 0);
-#endif
-
-	rec = (struct bi_record *)addr;
-	rec->tag = BI_FIRST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_BOOTLOADER_ID;
-	sprintf( (char *)rec->data, "coffboot");
-	rec->size = sizeof(struct bi_record) + strlen("coffboot") + 1;
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_MACHTYPE;
-	rec->data[0] = _MACH_Pmac;
-	rec->data[1] = 1;
-	rec->size = sizeof(struct bi_record) + 2 * sizeof(unsigned long);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_LAST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-}
-
-struct memchunk {
-    unsigned int size;
-    struct memchunk *next;
-};
-
-static struct memchunk *freechunks;
-
-void *zalloc(void *x, unsigned items, unsigned size)
-{
-    void *p;
-    struct memchunk **mpp, *mp;
-
-    size *= items;
-    size = (size + 7) & -8;
-    heap_use += size;
-    if (heap_use > heap_max)
-	heap_max = heap_use;
-    for (mpp = &freechunks; (mp = *mpp) != 0; mpp = &mp->next) {
-	if (mp->size == size) {
-	    *mpp = mp->next;
-	    return mp;
-	}
-    }
-    p = avail_ram;
-    avail_ram += size;
-    if (avail_ram > avail_high)
-	avail_high = avail_ram;
-    if (avail_ram > end_avail) {
-	printf("oops... out of memory\n");
-	pause();
-    }
-    return p;
-}
-
-void zfree(void *x, void *addr, unsigned nb)
-{
-    struct memchunk *mp = addr;
-
-    nb = (nb + 7) & -8;
-    heap_use -= nb;
-    if (avail_ram == addr + nb) {
-	avail_ram = addr;
-	return;
-    }
-    mp->size = nb;
-    mp->next = freechunks;
-    freechunks = mp;
-}
-
-#define HEAD_CRC	2
-#define EXTRA_FIELD	4
-#define ORIG_NAME	8
-#define COMMENT		0x10
-#define RESERVED	0xe0
-
-#define DEFLATED	8
-
-void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
-{
-    z_stream s;
-    int r, i, flags;
-
-    /* skip header */
-    i = 10;
-    flags = src[3];
-    if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
-	printf("bad gzipped data\n");
-	exit();
-    }
-    if ((flags & EXTRA_FIELD) != 0)
-	i = 12 + src[10] + (src[11] << 8);
-    if ((flags & ORIG_NAME) != 0)
-	while (src[i++] != 0)
-	    ;
-    if ((flags & COMMENT) != 0)
-	while (src[i++] != 0)
-	    ;
-    if ((flags & HEAD_CRC) != 0)
-	i += 2;
-    if (i >= *lenp) {
-	printf("gunzip: ran out of data in header\n");
-	exit();
-    }
-
-    s.zalloc = zalloc;
-    s.zfree = zfree;
-    r = inflateInit2(&s, -MAX_WBITS);
-    if (r != Z_OK) {
-	printf("inflateInit2 returned %d\n", r);
-	exit();
-    }
-    s.next_in = src + i;
-    s.avail_in = *lenp - i;
-    s.next_out = dst;
-    s.avail_out = dstlen;
-    r = inflate(&s, Z_FINISH);
-    if (r != Z_OK && r != Z_STREAM_END) {
-	printf("inflate returned %d msg: %s\n", r, s.msg);
-	exit();
-    }
-    *lenp = s.next_out - (unsigned char *) dst;
-    inflateEnd(&s);
 }