Commit e8b736c8 authored by Helge Deller's avatar Helge Deller Committed by Kyle McMartin

[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
......@@ -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)
......
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