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Commit c4e1f6f6 authored by Russell King's avatar Russell King
Browse files

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



Signed-off-by: default avatarRussell King <rmk@arm.linux.org.uk>
parent 155bb144

arch/arm/mm/mm-armv.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -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);

}

}





/*

/*

include/asm-arm/page.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -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)

{

{