Commit 8431fd09 authored by Franck Bui-Huu's avatar Franck Bui-Huu Committed by Ralf Baechle
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[MIPS] Introduce __pa_symbol()



This patch introduces __pa_symbol() macro which should be used to
calculate the physical address of kernel symbols. It also relies
on RELOC_HIDE() to avoid any compiler's oddities when doing
arithmetics on symbols.
Signed-off-by: default avatarFranck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent d4df6d4e
......@@ -142,6 +142,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
#define __pa_page_offset(x) PAGE_OFFSET
#endif
#define __pa(x) ((unsigned long)(x) - __pa_page_offset(x))
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x),0))
#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
......
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