patch-2.3.9 linux/arch/mips/sgi/prom/memory.c

• Lines: 132
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.8/linux/arch/mips/sgi/prom/memory.c
• Orig date: Tue Oct 20 13:52:55 1998

diff -u --recursive --new-file v2.3.8/linux/arch/mips/sgi/prom/memory.c linux/arch/mips/sgi/prom/memory.c
@@ -1,131 +0,0 @@
-/*
- * memory.c: PROM library functions for acquiring/using memory descriptors
- *           given to us from the ARCS firmware.
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- *
- * $Id: memory.c,v 1.2 1998/03/27 08:53:47 ralf Exp $
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-
-#include <asm/sgialib.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-
-/* #define DEBUG */
-
-__initfunc(struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr))
-{
-	return romvec->get_mdesc(curr);
-}
-
-#ifdef DEBUG /* convenient for debugging */
-static char *mtypes[8] = {
-	"Exception Block",
-	"ARCS Romvec Page",
-	"Free/Contig RAM",
-	"Generic Free RAM",
-	"Bad Memory",
-	"Standlong Program Pages",
-	"ARCS Temp Storage Area",
-	"ARCS Permanent Storage Area"
-};
-#endif
-
-static struct prom_pmemblock prom_pblocks[PROM_MAX_PMEMBLOCKS];
-
-__initfunc(struct prom_pmemblock *prom_getpblock_array(void))
-{
-	return &prom_pblocks[0];
-}
-
-__initfunc(static void prom_setup_memupper(void))
-{
-	struct prom_pmemblock *p, *highest;
-
-	for(p = prom_getpblock_array(), highest = 0; p->size != 0; p++) {
-		if(p->base == 0xdeadbeef)
-			prom_printf("WHEEE, bogus pmemblock\n");
-		if(!highest || p->base > highest->base)
-			highest = p;
-	}
-	mips_memory_upper = highest->base + highest->size;
-#ifdef DEBUG
-	prom_printf("prom_setup_memupper: mips_memory_upper = %08lx\n",
-		    mips_memory_upper);
-#endif
-}
-
-__initfunc(void prom_meminit(void))
-{
-	struct linux_mdesc *p;
-	int totram;
-	int i = 0;
-
-	p = prom_getmdesc(PROM_NULL_MDESC);
-#ifdef DEBUG
-	prom_printf("ARCS MEMORY DESCRIPTOR dump:\n");
-	while(p) {
-		prom_printf("[%d,%p]: base<%08lx> pages<%08lx> type<%s>\n",
-			    i, p, p->base, p->pages, mtypes[p->type]);
-		p = prom_getmdesc(p);
-		i++;
-	}
-#endif
-	p = prom_getmdesc(PROM_NULL_MDESC);
-	totram = 0;
-	i = 0;
-	while(p) {
-		if(p->type == free || p->type == fcontig) {
-			prom_pblocks[i].base =
-				((p->base<<PAGE_SHIFT) + 0x80000000);
-			prom_pblocks[i].size = p->pages << PAGE_SHIFT;
-			totram += prom_pblocks[i].size;
-#ifdef DEBUG
-			prom_printf("free_chunk[%d]: base=%08lx size=%d\n",
-				    i, prom_pblocks[i].base,
-				    prom_pblocks[i].size);
-#endif
-			i++;
-		}
-		p = prom_getmdesc(p);
-	}
-	prom_pblocks[i].base = 0xdeadbeef;
-	prom_pblocks[i].size = 0; /* indicates last elem. of array */
-	printk("PROMLIB: Total free ram %d bytes (%dK,%dMB)\n",
-		    totram, (totram/1024), (totram/1024/1024));
-
-	/* Setup upper physical memory bound. */
-	prom_setup_memupper();
-}
-
-/* Called from mem_init() to fixup the mem_map page settings. */
-__initfunc(void prom_fixup_mem_map(unsigned long start, unsigned long end))
-{
-	struct prom_pmemblock *p;
-	int i, nents;
-
-	/* Determine number of pblockarray entries. */
-	p = prom_getpblock_array();
-	for(i = 0; p[i].size; i++)
-		;
-	nents = i;
-	while(start < end) {
-		for(i = 0; i < nents; i++) {
-			if((start >= (p[i].base)) &&
-			   (start < (p[i].base + p[i].size))) {
-				start = p[i].base + p[i].size;
-				start &= PAGE_MASK;
-				continue;
-			}
-		}
-		set_bit(PG_reserved, &mem_map[MAP_NR(start)].flags);
-		start += PAGE_SIZE;
-	}
-}