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-rw-r--r--arch/cris/mm/init.c199
1 files changed, 7 insertions, 192 deletions
diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c
index 31a0018b525..c81af5bd916 100644
--- a/arch/cris/mm/init.c
+++ b/arch/cris/mm/init.c
@@ -6,204 +6,29 @@
*
* Authors: Bjorn Wesen (bjornw@axis.com)
*
- * $Log: init.c,v $
- * Revision 1.11 2004/05/28 09:28:56 starvik
- * Calculation of loops_per_usec moved because initalization order has changed
- * in Linux 2.6.
- *
- * Revision 1.10 2004/05/14 07:58:05 starvik
- * Merge of changes from 2.4
- *
- * Revision 1.9 2003/07/04 08:27:54 starvik
- * Merge of Linux 2.5.74
- *
- * Revision 1.8 2003/04/09 05:20:48 starvik
- * Merge of Linux 2.5.67
- *
- * Revision 1.7 2003/01/22 06:48:38 starvik
- * Fixed warnings issued by GCC 3.2.1
- *
- * Revision 1.6 2002/12/11 14:44:48 starvik
- * Extracted v10 (ETRAX 100LX) specific stuff to arch/cris/arch-v10/mm
- *
- * Revision 1.5 2002/11/18 07:37:37 starvik
- * Added cache bug workaround (from Linux 2.4)
- *
- * Revision 1.4 2002/11/13 15:40:24 starvik
- * Removed the page table cache stuff (as done in other archs)
- *
- * Revision 1.3 2002/11/05 06:45:13 starvik
- * Merge of Linux 2.5.45
- *
- * Revision 1.2 2001/12/18 13:35:22 bjornw
- * Applied the 2.4.13->2.4.16 CRIS patch to 2.5.1 (is a copy of 2.4.15).
- *
- * Revision 1.31 2001/11/13 16:22:00 bjornw
- * Skip calculating totalram and sharedram in si_meminfo
- *
- * Revision 1.30 2001/11/12 19:02:10 pkj
- * Fixed compiler warnings.
- *
- * Revision 1.29 2001/07/25 16:09:50 bjornw
- * val->sharedram will stay 0
- *
- * Revision 1.28 2001/06/28 16:30:17 bjornw
- * Oops. This needs to wait until 2.4.6 is merged
- *
- * Revision 1.27 2001/06/28 14:04:07 bjornw
- * Fill in sharedram
- *
- * Revision 1.26 2001/06/18 06:36:02 hp
- * Enable free_initmem of __init-type pages
- *
- * Revision 1.25 2001/06/13 00:02:23 bjornw
- * Use a separate variable to store the current pgd to avoid races in schedule
- *
- * Revision 1.24 2001/05/15 00:52:20 hp
- * Only map segment 0xa as seg if CONFIG_JULIETTE
- *
- * Revision 1.23 2001/04/04 14:35:40 bjornw
- * * Removed get_pte_slow and friends (2.4.3 change)
- * * Removed bad_pmd handling (2.4.3 change)
- *
- * Revision 1.22 2001/04/04 13:38:04 matsfg
- * Moved ioremap to a separate function instead
- *
- * Revision 1.21 2001/03/27 09:28:33 bjornw
- * ioremap used too early - lets try it in mem_init instead
- *
- * Revision 1.20 2001/03/23 07:39:21 starvik
- * Corrected according to review remarks
- *
- * Revision 1.19 2001/03/15 14:25:17 bjornw
- * More general shadow registers and ioremaped addresses for external I/O
- *
- * Revision 1.18 2001/02/23 12:46:44 bjornw
- * * 0xc was not CSE1; 0x8 is, same as uncached flash, so we move the uncached
- * flash during CRIS_LOW_MAP from 0xe to 0x8 so both the flash and the I/O
- * is mapped straight over (for !CRIS_LOW_MAP the uncached flash is still 0xe)
- *
- * Revision 1.17 2001/02/22 15:05:21 bjornw
- * Map 0x9 straight over during LOW_MAP to allow for memory mapped LEDs
- *
- * Revision 1.16 2001/02/22 15:02:35 bjornw
- * Map 0xc straight over during LOW_MAP to allow for memory mapped I/O
- *
- * Revision 1.15 2001/01/10 21:12:10 bjornw
- * loops_per_sec -> loops_per_jiffy
- *
- * Revision 1.14 2000/11/22 16:23:20 bjornw
- * Initialize totalhigh counters to 0 to make /proc/meminfo look nice.
- *
- * Revision 1.13 2000/11/21 16:37:51 bjornw
- * Temporarily disable initmem freeing
- *
- * Revision 1.12 2000/11/21 13:55:07 bjornw
- * Use CONFIG_CRIS_LOW_MAP for the low VM map instead of explicit CPU type
- *
- * Revision 1.11 2000/10/06 12:38:22 bjornw
- * Cast empty_bad_page correctly (should really be of * type from the start..
- *
- * Revision 1.10 2000/10/04 16:53:57 bjornw
- * Fix memory-map due to LX features
- *
- * Revision 1.9 2000/09/13 15:47:49 bjornw
- * Wrong count in reserved-pages loop
- *
- * Revision 1.8 2000/09/13 14:35:10 bjornw
- * 2.4.0-test8 added a new arg to free_area_init_node
- *
- * Revision 1.7 2000/08/17 15:35:55 bjornw
- * 2.4.0-test6 removed MAP_NR and inserted virt_to_page
- *
- *
*/
+#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <asm/tlb.h>
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
+#include <asm/sections.h>
unsigned long empty_zero_page;
-extern char _stext, _edata, _etext; /* From linkerscript */
-extern char __init_begin, __init_end;
-
-void
-show_mem(void)
-{
- int i,free = 0,total = 0,cached = 0, reserved = 0, nonshared = 0;
- int shared = 0;
-
- printk("\nMem-info:\n");
- show_free_areas();
- printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
- i = max_mapnr;
- while (i-- > 0) {
- total++;
- if (PageReserved(mem_map+i))
- reserved++;
- else if (PageSwapCache(mem_map+i))
- cached++;
- else if (!page_count(mem_map+i))
- free++;
- else if (page_count(mem_map+i) == 1)
- nonshared++;
- else
- shared += page_count(mem_map+i) - 1;
- }
- printk("%d pages of RAM\n",total);
- printk("%d free pages\n",free);
- printk("%d reserved pages\n",reserved);
- printk("%d pages nonshared\n",nonshared);
- printk("%d pages shared\n",shared);
- printk("%d pages swap cached\n",cached);
-}
-
void __init
mem_init(void)
{
- int codesize, reservedpages, datasize, initsize;
- unsigned long tmp;
-
- if(!mem_map)
- BUG();
+ BUG_ON(!mem_map);
/* max/min_low_pfn was set by setup.c
* now we just copy it to some other necessary places...
*
* high_memory was also set in setup.c
*/
-
- max_mapnr = num_physpages = max_low_pfn - min_low_pfn;
-
- /* this will put all memory onto the freelists */
- totalram_pages = free_all_bootmem();
-
- reservedpages = 0;
- for (tmp = 0; tmp < max_mapnr; tmp++) {
- /*
- * Only count reserved RAM pages
- */
- if (PageReserved(mem_map + tmp))
- reservedpages++;
- }
-
- codesize = (unsigned long) &_etext - (unsigned long) &_stext;
- 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),
- max_mapnr << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10
- );
+ max_mapnr = max_low_pfn - min_low_pfn;
+ free_all_bootmem();
+ mem_init_print_info(NULL);
}
/* free the pages occupied by initialization code */
@@ -211,15 +36,5 @@ 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));
- set_page_count(virt_to_page(addr), 1);
- free_page(addr);
- totalram_pages++;
- }
- printk (KERN_INFO "Freeing unused kernel memory: %luk freed\n",
- (unsigned long)((&__init_end - &__init_begin) >> 10));
+ free_initmem_default(-1);
}
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