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authorDaniel Jacobowitz <dan@debian.org>2005-01-20 19:59:54 -0500
committerRalf Baechle <ralf@linux-mips.org>2006-02-07 13:30:25 +0000
commit3d503753b40469b6a19dcc3511f6eb8c55f6d122 (patch)
treee4c3f167c94633e2b10dede3ed80c2c03807c6ec /arch/mips/mm/init.c
parente9feeb207e55373f718b33e0d6cb0c2f8b58f3c1 (diff)
[MIPS] Support /proc/kcore for MIPS
I'm pretty sure that the CKSEG0 bits are wrong, but I did need to cover that region - because the SB-1 kernel links at 0xffffffff80100000 or so, disassembly and printing static variables don't work unless the debugger can read that region. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mm/init.c')
-rw-r--r--arch/mips/mm/init.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 4ee91c9a556..0ff9a348b84 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -24,6 +24,7 @@
#include <linux/bootmem.h>
#include <linux/highmem.h>
#include <linux/swap.h>
+#include <linux/proc_fs.h>
#include <asm/bootinfo.h>
#include <asm/cachectl.h>
@@ -200,6 +201,11 @@ static inline int page_is_ram(unsigned long pagenr)
return 0;
}
+static struct kcore_list kcore_mem, kcore_vmalloc;
+#ifdef CONFIG_64BIT
+static struct kcore_list kcore_kseg0;
+#endif
+
void __init mem_init(void)
{
unsigned long codesize, reservedpages, datasize, initsize;
@@ -249,6 +255,16 @@ void __init mem_init(void)
datasize = (unsigned long) &_edata - (unsigned long) &_etext;
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
+#ifdef CONFIG_64BIT
+ if ((unsigned long) &_text > (unsigned long) CKSEG0)
+ /* The -4 is a hack so that user tools don't have to handle
+ the overflow. */
+ kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4);
+#endif
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+ kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
+ VMALLOC_END-VMALLOC_START);
+
printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
"%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),