forked from luck/tmp_suning_uos_patched
sh: Assembly friendly __pa and __va definitions
This patch defines ___pa and ___va which return the physical and virtual address of an address, respectively. These macros are suitable for calling from assembly because they don't include the C casts required by __pa and __va. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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@ -128,13 +128,18 @@ typedef struct page *pgtable_t;
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* added or subtracted as required.
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*/
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#ifdef CONFIG_PMB
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#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET+__MEMORY_START)
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#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET-__MEMORY_START))
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#define ___pa(x) ((x)-PAGE_OFFSET+__MEMORY_START)
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#define ___va(x) ((x)+PAGE_OFFSET-__MEMORY_START)
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#else
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#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
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#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
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#define ___pa(x) ((x)-PAGE_OFFSET)
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#define ___va(x) ((x)+PAGE_OFFSET)
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#endif
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#ifndef __ASSEMBLY__
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#define __pa(x) ___pa((unsigned long)x)
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#define __va(x) (void *)___va((unsigned long)x)
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_UNCACHED_MAPPING
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#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + uncached_start)
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#define CAC_ADDR(addr) ((addr) - uncached_start + PAGE_OFFSET)
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