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[PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM

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This patch introduces the conditional changes required for the three
memory models.  With [patch 1/4] there are three memory models; FLATMEM,
DISCONTIG and SPARSEMEM.  Also a new arch include file sparemem.h is
introduced for defining SPARSEMEM parameters.

Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Bob Picco
2005-10-04 15:13:50 -04:00
committed by Tony Luck
parent c678796cab
commit 1be7d9935b
5 changed files with 33 additions and 9 deletions
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6
include/asm-ia64/page.h
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@@ -102,15 +102,15 @@ do { \
#ifdef CONFIG_VIRTUAL_MEM_MAP
extern int ia64_pfn_valid (unsigned long pfn);
#else
#elif defined(CONFIG_FLATMEM)
# define ia64_pfn_valid(pfn) 1
#endif
#ifndef CONFIG_DISCONTIGMEM
#ifdef CONFIG_FLATMEM
# define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
# define page_to_pfn(page) ((unsigned long) (page - mem_map))
# define pfn_to_page(pfn) (mem_map + (pfn))
#else
#elif defined(CONFIG_DISCONTIGMEM)
extern struct page *vmem_map;
extern unsigned long max_low_pfn;
# define pfn_valid(pfn) (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))