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authorRalf Baechle <ralf@linux-mips.org>2007-08-01 15:46:18 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-08-27 02:16:49 +0100
commit99e480d81ca98c25918c460fdb5ca876d7df6178 (patch)
tree7b2b5cc72bf294202b6779a8c427c145431dcc5c /include/asm-mips/pgtable-32.h
parent03b8b8e7c9c36e2d7c4bc9c63eeed872e6f01ad0 (diff)
downloadlinux-99e480d81ca98c25918c460fdb5ca876d7df6178.tar.bz2
[MIPS] Compute PGD_ORDER from the select page size.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips/pgtable-32.h')
-rw-r--r--include/asm-mips/pgtable-32.h10
1 files changed, 2 insertions, 8 deletions
diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h
index ff2948513f8e..59c865deb0c7 100644
--- a/include/asm-mips/pgtable-32.h
+++ b/include/asm-mips/pgtable-32.h
@@ -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 PUD_ORDER aieeee_attempt_to_allocate_pud
-#define PMD_ORDER 1
-#define PTE_ORDER 0
-#else
-#define PGD_ORDER 0
+#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
-#endif
#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))