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authorFranck Bui-Huu <vagabon.xyz@gmail.com>2006-10-19 13:20:02 +0200
committerRalf Baechle <ralf@linux-mips.org>2006-11-30 01:14:41 +0000
commit8431fd094d625b94d364fe393076ccef88e6ce18 (patch)
treea6f34ac5f87f437b99d82f449849086539e2ed9c /include/asm-mips/page.h
parentd4df6d4e7a66b7a9bd57f5dc7d80d6b55dc12dbb (diff)
downloadop-kernel-dev-8431fd094d625b94d364fe393076ccef88e6ce18.zip
op-kernel-dev-8431fd094d625b94d364fe393076ccef88e6ce18.tar.gz
[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: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips/page.h')
-rw-r--r--include/asm-mips/page.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index c3b13de..0dc1a45 100644
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -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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