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authorHelge Deller <deller@gmx.de>2006-10-14 22:10:44 +0200
committerKyle McMartin <kyle@ubuntu.com>2006-12-08 00:33:55 -0500
commitce8420bb65d25335c3b48ddfb1b5a244f53bfb75 (patch)
tree41e9bcca2bc071769494bdafebea0783a6dd9ae9 /arch/parisc/mm
parent58554927f85616c374795fbddcf0607a3faa7c46 (diff)
downloadop-kernel-dev-ce8420bb65d25335c3b48ddfb1b5a244f53bfb75.zip
op-kernel-dev-ce8420bb65d25335c3b48ddfb1b5a244f53bfb75.tar.gz
[PARISC] Show more memory information and memory layout at bootup
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc/mm')
-rw-r--r--arch/parisc/mm/init.c48
1 files changed, 47 insertions, 1 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0667f2b..d9e4ab5 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -24,6 +24,7 @@
#include <linux/pagemap.h> /* for release_pages and page_cache_release */
#include <asm/pgalloc.h>
+#include <asm/pgtable.h>
#include <asm/tlb.h>
#include <asm/pdc_chassis.h>
#include <asm/mmzone.h>
@@ -453,6 +454,9 @@ unsigned long pcxl_dma_start __read_mostly;
void __init mem_init(void)
{
+ int codesize, reservedpages, datasize, initsize;
+ int tmp;
+
high_memory = __va((max_pfn << PAGE_SHIFT));
#ifndef CONFIG_DISCONTIGMEM
@@ -466,8 +470,17 @@ void __init mem_init(void)
totalram_pages += free_all_bootmem_node(NODE_DATA(i));
}
#endif
+ 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 available\n", num_physpages << (PAGE_SHIFT-10));
+ reservedpages = 0;
+ for (tmp = 0; tmp < max_low_pfn; tmp++)
+ /*
+ * Only count reserved RAM pages
+ */
+ if (PageReserved(pfn_to_page(tmp)))
+ reservedpages++;
#ifdef CONFIG_PA11
if (hppa_dma_ops == &pcxl_dma_ops) {
@@ -481,6 +494,39 @@ void __init mem_init(void)
vmalloc_start = SET_MAP_OFFSET(MAP_START);
#endif
+ printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init, %ldk highmem)\n",
+ (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
+ num_physpages << (PAGE_SHIFT-10),
+ codesize >> 10,
+ reservedpages << (PAGE_SHIFT-10),
+ datasize >> 10,
+ initsize >> 10,
+ (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10))
+ );
+
+#ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
+ printk("virtual kernel memory layout:\n"
+ " vmalloc : 0x%p - 0x%p (%4ld MB)\n"
+ " lowmem : 0x%p - 0x%p (%4ld MB)\n"
+ " .init : 0x%p - 0x%p (%4ld kB)\n"
+ " .data : 0x%p - 0x%p (%4ld kB)\n"
+ " .text : 0x%p - 0x%p (%4ld kB)\n",
+
+ (void*)VMALLOC_START, (void*)VMALLOC_END,
+ (VMALLOC_END - VMALLOC_START) >> 20,
+
+ __va(0), high_memory,
+ ((unsigned long)high_memory - (unsigned long)__va(0)) >> 20,
+
+ &__init_begin, &__init_end,
+ ((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10,
+
+ &_etext, &_edata,
+ ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
+
+ &_text, &_etext,
+ ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
+#endif
}
unsigned long *empty_zero_page __read_mostly;
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