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Diffstat (limited to 'arch/m32r/mm/init.c')
-rw-r--r--arch/m32r/mm/init.c135
1 files changed, 14 insertions, 121 deletions
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index bbd97c85bc5..0d4146f644d 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -19,6 +19,7 @@
#include <linux/bitops.h>
#include <linux/nodemask.h>
#include <linux/pfn.h>
+#include <linux/gfp.h>
#include <asm/types.h>
#include <asm/processor.h>
#include <asm/page.h>
@@ -27,51 +28,10 @@
#include <asm/mmu_context.h>
#include <asm/setup.h>
#include <asm/tlb.h>
-
-/* References to section boundaries */
-extern char _text, _etext, _edata;
-extern char __init_begin, __init_end;
+#include <asm/sections.h>
pgd_t swapper_pg_dir[1024];
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-void show_mem(void)
-{
- int total = 0, reserved = 0;
- int shared = 0, cached = 0;
- int highmem = 0;
- struct page *page;
- pg_data_t *pgdat;
- unsigned long i;
-
- printk("Mem-info:\n");
- show_free_areas();
- printk("Free swap: %6ldkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
- for_each_online_pgdat(pgdat) {
- unsigned long flags;
- pgdat_resize_lock(pgdat, &flags);
- for (i = 0; i < pgdat->node_spanned_pages; ++i) {
- page = pgdat_page_nr(pgdat, i);
- total++;
- if (PageHighMem(page))
- highmem++;
- if (PageReserved(page))
- reserved++;
- else if (PageSwapCache(page))
- cached++;
- else if (page_count(page))
- shared += page_count(page) - 1;
- }
- pgdat_resize_unlock(pgdat, &flags);
- }
- printk("%d pages of RAM\n", total);
- printk("%d pages of HIGHMEM\n",highmem);
- printk("%d reserved pages\n",reserved);
- printk("%d pages shared\n",shared);
- printk("%d pages swap cached\n",cached);
-}
-
/*
* Cache of MMU context last used.
*/
@@ -80,7 +40,6 @@ unsigned long mmu_context_cache_dat;
#else
unsigned long mmu_context_cache_dat[NR_CPUS];
#endif
-static unsigned long hole_pages;
/*
* function prototype
@@ -93,12 +52,11 @@ void free_initrd_mem(unsigned long, unsigned long);
#endif
/* It'd be good if these lines were in the standard header file. */
-#define START_PFN(nid) \
- (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn)
#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn)
#ifndef CONFIG_DISCONTIGMEM
-unsigned long __init zone_sizes_init(void)
+void __init zone_sizes_init(void)
{
unsigned long zones_size[MAX_NR_ZONES] = {0, };
unsigned long max_dma;
@@ -123,12 +81,10 @@ unsigned long __init zone_sizes_init(void)
start_pfn = __MEMORY_START >> PAGE_SHIFT;
#endif /* CONFIG_MMU */
- free_area_init_node(0, NODE_DATA(0), zones_size, start_pfn, 0);
-
- return 0;
+ free_area_init_node(0, zones_size, start_pfn, 0);
}
#else /* CONFIG_DISCONTIGMEM */
-extern unsigned long zone_sizes_init(void);
+extern void zone_sizes_init(void);
#endif /* CONFIG_DISCONTIGMEM */
/*======================================================================*
@@ -146,24 +102,7 @@ void __init paging_init(void)
for (i = 0 ; i < USER_PTRS_PER_PGD * 2 ; i++)
pgd_val(pg_dir[i]) = 0;
#endif /* CONFIG_MMU */
- hole_pages = zone_sizes_init();
-}
-
-int __init reservedpages_count(void)
-{
- int reservedpages, nid, i;
-
- reservedpages = 0;
- for_each_online_node(nid) {
- unsigned long flags;
- pgdat_resize_lock(NODE_DATA(nid), &flags);
- for (i = 0 ; i < MAX_LOW_PFN(nid) - START_PFN(nid) ; i++)
- if (PageReserved(nid_page_nr(nid, i)))
- reservedpages++;
- pgdat_resize_unlock(NODE_DATA(nid), &flags);
- }
-
- return reservedpages;
+ zone_sizes_init();
}
/*======================================================================*
@@ -172,48 +111,20 @@ int __init reservedpages_count(void)
*======================================================================*/
void __init mem_init(void)
{
- int codesize, reservedpages, datasize, initsize;
- int nid;
#ifndef CONFIG_MMU
extern unsigned long memory_end;
-#endif
- num_physpages = 0;
- for_each_online_node(nid)
- num_physpages += MAX_LOW_PFN(nid) - START_PFN(nid) + 1;
-
- num_physpages -= hole_pages;
-
-#ifndef CONFIG_DISCONTIGMEM
- max_mapnr = num_physpages;
-#endif /* CONFIG_DISCONTIGMEM */
-
-#ifdef CONFIG_MMU
- high_memory = (void *)__va(PFN_PHYS(MAX_LOW_PFN(0)));
-#else
high_memory = (void *)(memory_end & PAGE_MASK);
+#else
+ high_memory = (void *)__va(PFN_PHYS(MAX_LOW_PFN(0)));
#endif /* CONFIG_MMU */
/* clear the zero-page */
memset(empty_zero_page, 0, PAGE_SIZE);
- /* this will put all low memory onto the freelists */
- for_each_online_node(nid)
- totalram_pages += free_all_bootmem_node(NODE_DATA(nid));
-
- reservedpages = reservedpages_count() - hole_pages;
- codesize = (unsigned long) &_etext - (unsigned long)&_text;
- datasize = (unsigned long) &_edata - (unsigned long)&_etext;
- initsize = (unsigned long) &__init_end - (unsigned long)&__init_begin;
-
- printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
- "%dk reserved, %dk data, %dk init)\n",
- (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
+ set_max_mapnr(get_num_physpages());
+ free_all_bootmem();
+ mem_init_print_info(NULL);
}
/*======================================================================*
@@ -222,17 +133,7 @@ void __init mem_init(void)
*======================================================================*/
void free_initmem(void)
{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- printk (KERN_INFO "Freeing unused kernel memory: %dk freed\n", \
- (int)(&__init_end - &__init_begin) >> 10);
+ free_initmem_default(-1);
}
#ifdef CONFIG_BLK_DEV_INITRD
@@ -242,14 +143,6 @@ void free_initmem(void)
*======================================================================*/
void free_initrd_mem(unsigned long start, unsigned long end)
{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- init_page_count(virt_to_page(p));
- free_page(p);
- totalram_pages++;
- }
- printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
#endif
-
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