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[PATCH] x86: Move swsusp __pa() dependent code to arch portion

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o __pa() should be used only on kernel linearly mapped virtual addresses
  and not on kernel text and data addresses.

o Hibernation code needs to determine the physical address associated
  with kernel symbol to mark a section boundary which contains pages which
  don't have to be saved and restored during hibernate/resume operation.

o Move this piece of code in arch dependent section. So that architectures
  which don't have kernel text/data mapped into kernel linearly mapped
  region can come up with their own ways of determining physical addresses
  associated with a kernel text.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Vivek Goyal
2007-05-02 19:27:07 +02:00
committed by Andi Kleen
parent cfd243d4af
commit 49c3df6aaa
6 changed files with 55 additions and 14 deletions
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11
kernel/power/snapshot.c
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@@ -650,17 +650,6 @@ static inline void *saveable_highmem_page(unsigned long pfn) { return NULL; }
static inline unsigned int count_highmem_pages(void) { return 0; }
#endif /* CONFIG_HIGHMEM */
/**
* pfn_is_nosave - check if given pfn is in the 'nosave' section
*/
static inline int pfn_is_nosave(unsigned long pfn)
{
unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
}
/**
* saveable - Determine whether a non-highmem page should be included in
* the suspend image.