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Diffstat (limited to 'arch/x86_64/kernel/e820.c')
-rw-r--r--arch/x86_64/kernel/e820.c31
1 files changed, 9 insertions, 22 deletions
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index a490fab..13c6c37 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -17,6 +17,8 @@
#include <linux/kexec.h>
#include <linux/module.h>
#include <linux/mm.h>
+#include <linux/suspend.h>
+#include <linux/pfn.h>
#include <asm/pgtable.h>
#include <asm/page.h>
@@ -25,7 +27,7 @@
#include <asm/bootsetup.h>
#include <asm/sections.h>
-struct e820map e820 __initdata;
+struct e820map e820;
/*
* PFN of last memory page.
@@ -98,7 +100,7 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
* This function checks if any part of the range <start,end> is mapped
* with type.
*/
-int __meminit
+int
e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
{
int i;
@@ -112,6 +114,7 @@ e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
}
return 0;
}
+EXPORT_SYMBOL_GPL(e820_any_mapped);
/*
* This function checks if the entire range <start,end> is mapped with type.
@@ -255,22 +258,6 @@ void __init e820_reserve_resources(void)
}
}
-/* Mark pages corresponding to given address range as nosave */
-static void __init
-e820_mark_nosave_range(unsigned long start, unsigned long end)
-{
- unsigned long pfn, max_pfn;
-
- if (start >= end)
- return;
-
- printk("Nosave address range: %016lx - %016lx\n", start, end);
- max_pfn = end >> PAGE_SHIFT;
- for (pfn = start >> PAGE_SHIFT; pfn < max_pfn; pfn++)
- if (pfn_valid(pfn))
- SetPageNosave(pfn_to_page(pfn));
-}
-
/*
* Find the ranges of physical addresses that do not correspond to
* e820 RAM areas and mark the corresponding pages as nosave for software
@@ -289,13 +276,13 @@ void __init e820_mark_nosave_regions(void)
struct e820entry *ei = &e820.map[i];
if (paddr < ei->addr)
- e820_mark_nosave_range(paddr,
- round_up(ei->addr, PAGE_SIZE));
+ register_nosave_region(PFN_DOWN(paddr),
+ PFN_UP(ei->addr));
paddr = round_down(ei->addr + ei->size, PAGE_SIZE);
if (ei->type != E820_RAM)
- e820_mark_nosave_range(round_up(ei->addr, PAGE_SIZE),
- paddr);
+ register_nosave_region(PFN_UP(ei->addr),
+ PFN_DOWN(paddr));
if (paddr >= (end_pfn << PAGE_SHIFT))
break;
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