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[ARM] mm: provide helpers for accessing membanks

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Provide helpers for getting physical addresses or pfns from the
meminfo array, and use them.  Move for_each_nodebank() to
asm/setup.h alongside the meminfo structure definition.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2008-10-01 16:56:15 +01:00
committed by Russell King
parent 6c5da7aced
commit d2a38ef9c1
2 changed files with 39 additions and 31 deletions
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11
arch/arm/include/asm/setup.h
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@ -209,6 +209,17 @@ struct meminfo {
struct membank bank[NR_BANKS];
};
#define for_each_nodebank(iter,mi,no) \
for (iter = 0; iter < mi->nr_banks; iter++) \
if (mi->bank[iter].node == no)
#define bank_pfn_start(bank) __phys_to_pfn((bank)->start)
#define bank_pfn_end(bank) __phys_to_pfn((bank)->start + (bank)->size)
#define bank_pfn_size(bank) ((bank)->size >> PAGE_SHIFT)
#define bank_phys_start(bank) (bank)->start
#define bank_phys_end(bank) ((bank)->start + (bank)->size)
#define bank_phys_size(bank) (bank)->size
/*
* Early command line parameters.
*/