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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-05-26 14:44:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:55 -0700
commitf6ae31c23be6926359e9379acfdbbdd945209f05 (patch)
tree3985c6be62afcb636efcf5131a6464b2cbcba2a0 /arch/parisc
parent7676679f659ac0112cad02789eb5560da2814e56 (diff)
downloadlinux-2.6.34-ux500-f6ae31c23be6926359e9379acfdbbdd945209f05.tar.gz
parisc: use asm-generic/scatterlist.h
parisc uses iova and iova_length in scatterlist structure instead of dma_address and dma_length. However, the accessor are used so we can convert parisc to use asm-generic/scatterlist.h easily. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/Kconfig3
-rw-r--r--arch/parisc/include/asm/scatterlist.h20
2 files changed, 5 insertions, 18 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9c4da3d63bf..05a366a5c4d 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -98,6 +98,9 @@ config STACKTRACE_SUPPORT
config NEED_DMA_MAP_STATE
def_bool y
+config NEED_SG_DMA_LENGTH
+ def_bool y
+
config ISA_DMA_API
bool
diff --git a/arch/parisc/include/asm/scatterlist.h b/arch/parisc/include/asm/scatterlist.h
index 62269b31ebf..2c3b79b54b2 100644
--- a/arch/parisc/include/asm/scatterlist.h
+++ b/arch/parisc/include/asm/scatterlist.h
@@ -3,25 +3,9 @@
#include <asm/page.h>
#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
- unsigned long sg_magic;
-#endif
- unsigned long page_link;
- unsigned int offset;
-
- unsigned int length;
-
- /* an IOVA can be 64-bits on some PA-Risc platforms. */
- dma_addr_t iova; /* I/O Virtual Address */
- __u32 iova_length; /* bytes mapped */
-};
-
-#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
-#define sg_dma_address(sg) ((sg)->iova)
-#define sg_dma_len(sg) ((sg)->iova_length)
+#include <asm-generic/scatterlist.h>
#define ISA_DMA_THRESHOLD (~0UL)
+#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
#endif /* _ASM_PARISC_SCATTERLIST_H */