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Commit e8b736c8 authored by Helge Deller's avatar Helge Deller Committed by Kyle McMartin
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[PARISC] Add some defines for HugeTLB pages 



Define some constants for HugeTLB pages, not that parisc-linux supports
it yet.

Signed-off-by: default avatarHelge Deller <deller@parisc-linux.org>
Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent 4d64c9f5

include/asm-parisc/page.h

+7 −0
Original line number Diff line number Diff line
@@ -135,6 +135,13 @@ extern int npmem_ranges; 
#define pfn_valid(pfn)		((pfn) < max_mapnr)

#endif /* CONFIG_DISCONTIGMEM */



#ifdef CONFIG_HUGETLB_PAGE

#define HPAGE_SHIFT		22	/* 4MB (is this fixed?) */

#define HPAGE_SIZE      	((1UL) << HPAGE_SHIFT)

#define HPAGE_MASK		(~(HPAGE_SIZE - 1))

#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)

#endif



#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)



#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)