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[PATCH] ARM: Add top_pmd, which points at the top-most page table

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Signed-off-by: Russell King <rmk@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-05-10 10:40:19 +01:00
parent 155bb14482
commit c4e1f6f6bf
2 changed files with 7 additions and 0 deletions
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4
arch/arm/mm/mm-armv.c
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@ -37,6 +37,8 @@ pgprot_t pgprot_kernel;
EXPORT_SYMBOL(pgprot_kernel); EXPORT_SYMBOL(pgprot_kernel);
pmd_t *top_pmd;
struct cachepolicy { struct cachepolicy {
const char policy[16]; const char policy[16];
unsigned int cr_mask; unsigned int cr_mask;
@ -682,6 +684,8 @@ void __init memtable_init(struct meminfo *mi)
flush_cache_all(); flush_cache_all();
flush_tlb_all(); flush_tlb_all();
top_pmd = pmd_off_k(VECTORS_HIGH);
} }
/* /*

3
include/asm-arm/page.h
View file

@ -171,6 +171,9 @@ typedef unsigned long pgprot_t;
#endif /* STRICT_MM_TYPECHECKS */ #endif /* STRICT_MM_TYPECHECKS */
/* the upper-most page table pointer */
extern pmd_t *top_pmd;
/* Pure 2^n version of get_order */ /* Pure 2^n version of get_order */
static inline int get_order(unsigned long size) static inline int get_order(unsigned long size)
{ {