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authorRichard Kuo <rkuo@codeaurora.org>2013-04-08 18:30:12 -0500
committerRichard Kuo <rkuo@codeaurora.org>2013-04-30 19:40:28 -0500
commit5e1150542fd1d75fe2b6c3491415c860cdc06be2 (patch)
tree04b129c2eb46c1d370c7647eb307465bffec45dd /arch/hexagon/include
parentc710f5908768e18d8e8081e917fda362089cb13f (diff)
downloadlinux-linaro-stable-5e1150542fd1d75fe2b6c3491415c860cdc06be2.tar.gz
Hexagon: use correct translations for DMA mappings
With physical offsets, pa<->va translations aren't just based on PAGE_OFFSET anymore. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Diffstat (limited to 'arch/hexagon/include')
-rw-r--r--arch/hexagon/include/asm/page.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index f3b26f14a7c7..93f5669b4aa1 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -140,6 +140,11 @@ static inline void clear_page(void *page)
*/
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+
+#define page_to_virt(page) __va(page_to_phys(page))
+
/*
* For port to Hexagon Virtual Machine, MAYBE we check for attempts
* to reference reserved HVM space, but in any case, the VM will be