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[MIPS] Compute PGD_ORDER from the select page size.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-08-01 15:46:18 +01:00
parent 03b8b8e7c9
commit 99e480d81c
1 changed files with 2 additions and 8 deletions
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10
include/asm-mips/pgtable-32.h
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@ -51,17 +51,11 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
* Entries per page directory level: we use two-level, so
* we don't really have any PUD/PMD directory physically.
*/
#ifdef CONFIG_64BIT_PHYS_ADDR
#define PGD_ORDER 1
#define __PGD_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
#define PGD_ORDER (__PGD_ORDER >= 0 ? __PGD_ORDER : 0)
#define PUD_ORDER aieeee_attempt_to_allocate_pud
#define PMD_ORDER 1
#define PTE_ORDER 0
#else
#define PGD_ORDER 0
#define PUD_ORDER aieeee_attempt_to_allocate_pud
#define PMD_ORDER 1
#define PTE_ORDER 0
#endif
#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))