patch-2.4.20 linux-2.4.20/arch/mips64/arc/memory.c

• Lines: 160
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.19/arch/mips64/arc/memory.c
• Orig date: Fri Aug 2 17:39:43 2002

diff -urN linux-2.4.19/arch/mips64/arc/memory.c linux-2.4.20/arch/mips64/arc/memory.c
@@ -1,159 +0,0 @@
-/*
- * memory.c: PROM library functions for acquiring/using memory descriptors
- *           given to us from the ARCS firmware.
- *
- * Copyright (C) 1996 by David S. Miller
- * Copyright (C) 1999, 2000, 2001 by Ralf Baechle
- * Copyright (C) 1999, 2000 by Silicon Graphics, Inc.
- *
- * PROM library functions for acquiring/using memory descriptors given to us
- * from the ARCS firmware.  This is only used when CONFIG_ARC_MEMORY is set
- * because on some machines like SGI IP27 the ARC memory configuration data
- * completly bogus and alternate easier to use mechanisms are available.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/swap.h>
-
-#include <asm/sgialib.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-
-#undef DEBUG
-
-struct linux_mdesc* __init ArcGetMemoryDescriptor(struct linux_mdesc *Current)
-{
-	return (struct linux_mdesc *) ARC_CALL1(get_mdesc, Current);
-}
-
-#ifdef DEBUG /* convenient for debugging */
-static char *arcs_mtypes[8] = {
-	"Exception Block",
-	"ARCS Romvec Page",
-	"Free/Contig RAM",
-	"Generic Free RAM",
-	"Bad Memory",
-	"Standalone Program Pages",
-	"ARCS Temp Storage Area",
-	"ARCS Permanent Storage Area"
-};
-
-static char *arc_mtypes[8] = {
-	"Exception Block",
-	"SystemParameterBlock",
-	"FreeMemory",
-	"Bad Memory",
-	"LoadedProgram",
-	"FirmwareTemporary",
-	"FirmwarePermanent",
-	"FreeContiguous"
-};
-#define mtypes(a) (prom_flags & PROM_FLAG_ARCS) ? arcs_mtypes[a.arcs] \
-						: arc_mtypes[a.arc]
-#endif
-
-static inline int memtype_classify_arcs (union linux_memtypes type)
-{
-	switch (type.arcs) {
-	case arcs_fcontig:
-	case arcs_free:
-		return BOOT_MEM_RAM;
-	case arcs_atmp:
-		return BOOT_MEM_ROM_DATA;
-	case arcs_eblock:
-	case arcs_rvpage:
-	case arcs_bmem:
-	case arcs_prog:
-	case arcs_aperm:
-		return BOOT_MEM_RESERVED;
-	default:
-		BUG();
-	}
-	while(1);				/* Nuke warning.  */
-}
-
-static inline int memtype_classify_arc (union linux_memtypes type)
-{
-	switch (type.arc) {
-	case arc_free:
-	case arc_fcontig:
-		return BOOT_MEM_RAM;
-	case arc_atmp:
-		return BOOT_MEM_ROM_DATA;
-	case arc_eblock:
-	case arc_rvpage:
-	case arc_bmem:
-	case arc_prog:
-	case arc_aperm:
-		return BOOT_MEM_RESERVED;
-	default:
-		BUG();
-	}
-	while(1);				/* Nuke warning.  */
-}
-
-static int __init prom_memtype_classify (union linux_memtypes type)
-{
-	if (prom_flags & PROM_FLAG_ARCS)	/* SGI is ``different'' ... */
-		return memtype_classify_arcs(type);
-
-	return memtype_classify_arc(type);
-}
-
-void __init prom_meminit(void)
-{
-	struct linux_mdesc *p;
-
-#ifdef DEBUG
-	int i = 0;
-
-	prom_printf("ARCS MEMORY DESCRIPTOR dump:\n");
-	p = ArcGetMemoryDescriptor(PROM_NULL_MDESC);
-	while(p) {
-		prom_printf("[%d,%p]: base<%08lx> pages<%08lx> type<%s>\n",
-			    i, p, p->base, p->pages, mtypes(p->type));
-		p = ArcGetMemoryDescriptor(p);
-		i++;
-	}
-#endif
-
-	p = PROM_NULL_MDESC;
-	while ((p = ArcGetMemoryDescriptor(p))) {
-		unsigned long base, size;
-		long type;
-
-		base = p->base << PAGE_SHIFT;
-		size = p->pages << PAGE_SHIFT;
-		type = prom_memtype_classify(p->type);
-
-		add_memory_region(base, size, type);
-	}
-}
-
-void __init prom_free_prom_memory (void)
-{
-	unsigned long freed = 0;
-	unsigned long addr;
-	int i;
-
-	for (i = 0; i < boot_mem_map.nr_map; i++) {
-		if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
-			continue;
-
-		addr = boot_mem_map.map[i].addr;
-		while (addr < boot_mem_map.map[i].addr
-			      + boot_mem_map.map[i].size) {
-			ClearPageReserved(virt_to_page(__va(addr)));
-			set_page_count(virt_to_page(__va(addr)), 1);
-			free_page((unsigned long)__va(addr));
-			addr += PAGE_SIZE;
-			freed += PAGE_SIZE;
-		}
-	}
-	printk(KERN_INFO "Freeing prom memory: %ldkb freed\n", freed >> 10);
-}