patch-2.1.48 linux/arch/ppc/kernel/setup.c

• Lines: 410
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.47/linux/arch/ppc/kernel/setup.c
• Orig date: Wed Dec 18 00:49:52 1996

diff -u --recursive --new-file v2.1.47/linux/arch/ppc/kernel/setup.c linux/arch/ppc/kernel/setup.c
@@ -1,409 +0,0 @@
-/*
- *  linux/arch/ppc/kernel/setup.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Adapted from 'alpha' version by Gary Thomas
- *  Modified by Cort Dougan (cort@cs.nmt.edu)
- */
-
-/*
- * bootup setup stuff..
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/malloc.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/major.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/residual.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-
-extern unsigned long *end_of_DRAM;
-extern PTE *Hash;
-extern unsigned long Hash_size, Hash_mask;
-extern int probingmem;
-unsigned long empty_zero_page[1024];
-
-unsigned char aux_device_present;
-#ifdef CONFIG_BLK_DEV_RAM
-extern int rd_doload;		/* 1 = load ramdisk, 0 = don't load */
-extern int rd_prompt;		/* 1 = prompt for ramdisk, 0 = don't prompt */
-extern int rd_image_start;	/* starting block # of image */
-#endif
-
-#undef HASHSTATS
-
-extern unsigned long isBeBox[];
-
-/* copy of the residual data */
-RESIDUAL res;
-unsigned long resptr = 0; /* ptr to residual data from hw */
-
-/*
- * The format of "screen_info" is strange, and due to early
- * i386-setup code. This is just enough to make the console
- * code think we're on a EGA+ colour display.
- */
- /* this is changed only in minor ways from the original
-        -- Cort
- */
-struct screen_info screen_info = {
-  0, 25,			/* orig-x, orig-y */
-  { 0, 0 },		/* unused */
-  0,			/* orig-video-page */
-  0,			/* orig-video-mode */
-  80,			/* orig-video-cols */
-  0,0,0,			/* ega_ax, ega_bx, ega_cx */
-  25,			/* orig-video-lines */
-  1,			/* orig-video-isVGA */
-  16			/* orig-video-points */
-};
-
-
-unsigned long bios32_init(unsigned long memory_start, unsigned long memory_end)
-{
-  return memory_start;
-}
-
-#ifdef HASHSTATS
-unsigned long *hashhits;
-#endif
-
-extern unsigned long _TotalMemory;
-/* find the physical size of RAM and setup hardware hash table */
-unsigned long *find_end_of_memory(void)
-{
-  extern BAT BAT2;
-  _TotalMemory = res.TotalMemory;
-  
-  if (_TotalMemory == 0 )
-  {
-    printk("Ramsize from residual data was 0 -- Probing for value\n");
-    /* this needs be done differently since the bats actually map
-       addresses beyond physical memory! -- Cort */
-#if 0
-    probingmem = 1;
-    while ( probingmem )
-    {
-	_TotalMemory += 0x00800000; /* 8M */
-	*(unsigned long *)_TotalMemory+KERNELBASE;
-    }
-    _TotalMemory -= 0x00800000;
-#else    
-    _TotalMemory = 0x03000000;
-#endif
-    printk("Ramsize probed to be %dM\n", _TotalMemory>>20);
-  }
-  
-  /* setup BAT2 mapping so that it covers kernelbase to kernelbase+ramsize */
-  switch(_TotalMemory)
-  {
-    case 0x01000000:		/* 16M */
-      BAT2.batu.bl = BL_16M;
-      Hash_size = HASH_TABLE_SIZE_128K;
-      Hash_mask = HASH_TABLE_MASK_128K;
-      break;
-    case 0x00800000:		/* 8M */
-      BAT2.batu.bl = BL_8M;
-      Hash_size = HASH_TABLE_SIZE_64K;
-      Hash_mask = HASH_TABLE_MASK_64K;
-      break;
-    case 0x01800000:		/* 24M */
-    case 0x02000000:		/* 32M */
-      BAT2.batu.bl = BL_32M;
-      Hash_size = HASH_TABLE_SIZE_256K;
-      Hash_mask = HASH_TABLE_MASK_256K;
-      break;
-    case 0x03000000:		/* 48M */
-    case 0x04000000:		/* 64M */
-      BAT2.batu.bl = BL_64M;
-      Hash_size = HASH_TABLE_SIZE_512K;
-      Hash_mask = HASH_TABLE_MASK_512K;
-      break;
-    case 0x05000000:		/* 80M */
-      BAT2.batu.bl = BL_128M;
-      Hash_size = HASH_TABLE_SIZE_1M;
-      Hash_mask = HASH_TABLE_MASK_1M;
-      break;    
-    default:
-      printk("WARNING: setup.c: find_end_of_memory() unknown total ram size %x\n",
-	     _TotalMemory);
-      break;
-  }
-  
-  Hash = (PTE *)((_TotalMemory-Hash_size)+KERNELBASE);
-  bzero(Hash, Hash_size);
-  
- 
-#ifdef HASHSTATS
-  hashhits = (unsigned long *)Hash - (Hash_size/sizeof(struct _PTE))/2;
-  bzero(hashhits, (Hash_size/sizeof(struct _PTE))/2);
-  return ((unsigned long *)hashhits);
-#else
-  return ((unsigned long *)Hash);
-#endif
-}
-
-int size_memory;
-
-/*
- * This is set up by the setup-routine at boot-time
- */
-#define EXT_MEM_K (*(unsigned short *) (PARAM+2))
-#ifdef CONFIG_APM
-#define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+64))
-#endif
-#define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
-#define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
-#define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
-#define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
-#define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
-#define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
-#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
-#define KERNEL_START (*(unsigned long *) (PARAM+0x214))
-#define INITRD_START (*(unsigned long *) (PARAM+0x218))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
-#define COMMAND_LINE ((char *) (PARAM+2048))
-#define COMMAND_LINE_SIZE 256
-
-#define RAMDISK_IMAGE_START_MASK  	0x07FF
-#define RAMDISK_PROMPT_FLAG		0x8000
-#define RAMDISK_LOAD_FLAG		0x4000	
-
-static char command_line[COMMAND_LINE_SIZE] = { 0, };
-       char saved_command_line[COMMAND_LINE_SIZE];
-
-
-void
-setup_arch(char **cmdline_p, unsigned long * memory_start_p,
-	   unsigned long * memory_end_p)
-{
-  extern int _end;
-  extern char cmd_line[];
-  unsigned char reg;
-  extern int panic_timeout;
-  char inf[512];
-  int i;
-
-  if (isBeBox[0])
-    _Processor = _PROC_Be;
-  else
-  {
-    if (strncmp(res.VitalProductData.PrintableModel,"IBM",3))
-    {
-      _Processor = _PROC_Motorola;
-    }
-    else
-      _Processor = _PROC_IBM;
-  }
-  
-  get_cpuinfo(&inf);
-  printk("%s",inf);
-  
-  /* Set up floppy in PS/2 mode */
-  outb(0x09, SIO_CONFIG_RA);
-  reg = inb(SIO_CONFIG_RD);
-  reg = (reg & 0x3F) | 0x40;
-  outb(reg, SIO_CONFIG_RD);
-  outb(reg, SIO_CONFIG_RD);	/* Have to write twice to change! */
-
-  switch ( _Processor )
-  {
-    case _PROC_IBM:
-        ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
-	break;
-    case _PROC_Motorola:
-        ROOT_DEV = to_kdev_t(0x0801); /* sda1 */
-        break;
-  }
-  aux_device_present = 0xaa;
-
-  panic_timeout = 300;		/* reboot on panic */
-  
-#if 0
-  /* get root via nfs from charon -- was only used for testing */
-  ROOT_DEV = MKDEV(UNNAMED_MAJOR, 255);	/* nfs */
-  /*nfsaddrs=myip:serverip:gateip:netmaskip:clientname*/
-  strcpy(cmd_line,
-	 "nfsaddrs=129.138.6.101:129.138.6.90:129.138.6.1:255.255.255.0:gordito nfsroot=/joplin/ppc/root/");
-#endif
-  *cmdline_p = cmd_line;
-  *memory_start_p = (unsigned long) &_end;
-  (unsigned long *)*memory_end_p = (unsigned long *)end_of_DRAM;
-  size_memory = *memory_end_p - KERNELBASE;  /* Relative size of memory */
-
-#ifdef CONFIG_BLK_DEV_RAM
-  rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
-  rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
-  rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
-#if 1
-  rd_prompt = 1;
-  rd_doload = 1;
-  rd_image_start = 0;
-#endif
-#endif
-
-  /* Save unparsed command line copy for /proc/cmdline */
-  memcpy(saved_command_line, cmd_line,strlen(cmd_line)+1);
-  printk("Command line: %s\n", cmd_line);
-}
-
-asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on)
-{
-  return -EIO;
-}
-
-
-int
-get_cpuinfo(char *buffer)
-{
-  extern unsigned long loops_per_sec;
-  int i;
-  int pvr = _get_PVR();
-  int len;
-  char *model;
-  unsigned long full = 0, overflow = 0;
-  unsigned int ti;
-  PTE *ptr;  
-  
-  switch (pvr>>16)
-    {
-    case 3:
-      model = "603";
-      break;
-    case 4:
-      model = "604";
-      break;
-    case 6:
-      model = "603e";
-      break;
-    case 7:
-      model = "603ev";
-      break;
-    default:
-      model = "unknown";
-      break;
-    }
-  
-#ifdef __SMP__
-#define CD(X)		(cpu_data[n].X)  
-#else
-#define CD(X) (X)
-#define CPUN 0
-#endif
-  
-  len = sprintf(buffer, "PowerPC %s/%dMHz revision %d.%d %s\n",
-		model,
-		(res.VitalProductData.ProcessorHz > 1024) ?
-		res.VitalProductData.ProcessorHz>>20 :
-		res.VitalProductData.ProcessorHz,
-		MAJOR(pvr), MINOR(pvr),
-		(inb(IBM_EQUIP_PRESENT) & 2) ? "" : "upgrade");
-#if 1
-  if ( res.VitalProductData.PrintableModel[0] )
-    len += sprintf(buffer+len,"%s\n",res.VitalProductData.PrintableModel);
-  
-  len += sprintf(buffer+len,"Bus %dMHz\n",
-		(res.VitalProductData.ProcessorBusHz > 1024) ?
-		res.VitalProductData.ProcessorBusHz>>20 :
-		res.VitalProductData.ProcessorBusHz);
-  
-  /* make sure loops_per_sec has been setup -- ie not at boottime -- Cort */
-  if ( CD(loops_per_sec+2500)/500000 > 0)
-    len += sprintf(buffer+len,
-		   "bogomips: %lu.%02lu\n",
-		   CD(loops_per_sec+2500)/500000,
-		   (CD(loops_per_sec+2500)/5000) % 100);
-
-
-  len += sprintf(buffer+len,"Total Ram: %dM Hash Table: %dkB (%dk buckets)\n",
-	 _TotalMemory>>20, Hash_size>>10,
-	 (Hash_size/(sizeof(PTE)*8)) >> 10);
-  
-  for ( i = 0 ; (res.ActualNumMemories) && (i < MAX_MEMS) ; i++ )
-  {
-    if (i == 0)
-      len += sprintf(buffer+len,"SIMM Banks: ");
-    if ( res.Memories[i].SIMMSize != 0 )
-      len += sprintf(buffer+len,"%d:%dM ",i,
-		     (res.Memories[i].SIMMSize > 1024) ?
-		     res.Memories[i].SIMMSize>>20 :
-		     res.Memories[i].SIMMSize);
-    if ( i == MAX_MEMS-1)
-      len += sprintf(buffer+len,"\n");
-  }
-
-  /* TLB */
-  len += sprintf(buffer+len,"TLB");
-  switch(res.VitalProductData.TLBAttrib)
-  {
-    case CombinedTLB:
-      len += sprintf(buffer+len,": %d entries\n",
-		     res.VitalProductData.TLBSize);
-      break;
-    case SplitTLB:
-      len += sprintf(buffer+len,": (split I/D) %d/%d entries\n",
-		     res.VitalProductData.I_TLBSize,
-		     res.VitalProductData.D_TLBSize);
-      break;
-    case NoneTLB:
-      len += sprintf(buffer+len,": not present\n");
-      break;
-  }
-
-  /* L1 */
-  len += sprintf(buffer+len,"L1: ");
-  switch(res.VitalProductData.CacheAttrib)
-  {
-    case CombinedCAC:
-      len += sprintf(buffer+len,"%dkB LineSize\n",
-		     res.VitalProductData.CacheSize,
-		     res.VitalProductData.CacheLineSize);
-      break;
-    case SplitCAC:
-      len += sprintf(buffer+len,"(split I/D) %dkB/%dkB Linesize %dB/%dB\n",
-		     res.VitalProductData.I_CacheSize,
-		     res.VitalProductData.D_CacheSize,
-		     res.VitalProductData.D_CacheLineSize,
-		     res.VitalProductData.D_CacheLineSize);
-      break;
-    case NoneCAC:
-      len += sprintf(buffer+len,"not present\n");
-      break;
-  }
-
-  /* L2 */
-  if ( (inb(IBM_EQUIP_PRESENT) & 1) == 0) /* l2 present */
-  {
-    int size;
-    
-    len += sprintf(buffer+len,"L2: %dkB %s\n",
-		   ((inb(IBM_L2_STATUS) >> 5) & 1) ? 512 : 256,
-                   (inb(IBM_SYS_CTL) & 64) ? "enabled" : "disabled");
-  }
-  else
-  {
-    len += sprintf(buffer+len,"L2: not present\n");
-  }
-#if 0  
-  len+= sprintf(buffer+len,"Equip register %x\n",
-		inb(IBM_EQUIP_PRESENT));
-  len+= sprintf(buffer+len,"L2Status register %x\n",
-		inb(IBM_L2_STATUS));
-#endif
-#endif
-
-  
-  return len;
-}