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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-05-26 14:44:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:54 -0700
commit204f3a04449a9a775e465f7d87bcab08f170e59e (patch)
treea28027c04c7f7c5714395d1ebaf39b8c731c26b8
parenta48223f9449d0289fc20cd11a98758109830798e (diff)
downloadlinux-linaro-204f3a04449a9a775e465f7d87bcab08f170e59e.tar.gz
asm-generic: remove ISA_DMA_THRESHOLD in scatterlist.h
This is the first half of the attempt to use asm-generic/scatterlist.h on every architecture. There are only two ways to define scatterlist structure. So it's easy to convert every architecture to use asm-generic/scatterlist.h. This patch: The trick for ISA_DMA_THRESHOLD in asm-generic/scatterlist.h doesn't work for powerpc. This lets architectures defin ISA_DMA_THRESHOLD. Hopefully, we can remove ISA_DMA_THRESHOLD in the future; we can do better to decide if the bouncing is necessary or not. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/microblaze/include/asm/scatterlist.h2
-rw-r--r--arch/s390/include/asm/scatterlist.h2
-rw-r--r--arch/score/include/asm/scatterlist.h2
-rw-r--r--arch/sparc/include/asm/scatterlist.h2
-rw-r--r--include/asm-generic/scatterlist.h4
5 files changed, 8 insertions, 4 deletions
diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h
index 35d786fe93a..be44d94cba5 100644
--- a/arch/microblaze/include/asm/scatterlist.h
+++ b/arch/microblaze/include/asm/scatterlist.h
@@ -1 +1,3 @@
+#define ISA_DMA_THRESHOLD (~0UL)
+
#include <asm-generic/scatterlist.h>
diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index 35d786fe93a..be44d94cba5 100644
--- a/arch/s390/include/asm/scatterlist.h
+++ b/arch/s390/include/asm/scatterlist.h
@@ -1 +1,3 @@
+#define ISA_DMA_THRESHOLD (~0UL)
+
#include <asm-generic/scatterlist.h>
diff --git a/arch/score/include/asm/scatterlist.h b/arch/score/include/asm/scatterlist.h
index 9f533b8362c..4fa1a665821 100644
--- a/arch/score/include/asm/scatterlist.h
+++ b/arch/score/include/asm/scatterlist.h
@@ -1,6 +1,8 @@
#ifndef _ASM_SCORE_SCATTERLIST_H
#define _ASM_SCORE_SCATTERLIST_H
+#define ISA_DMA_THRESHOLD (~0UL)
+
#include <asm-generic/scatterlist.h>
#endif /* _ASM_SCORE_SCATTERLIST_H */
diff --git a/arch/sparc/include/asm/scatterlist.h b/arch/sparc/include/asm/scatterlist.h
index d1120257b03..0fa0d6da210 100644
--- a/arch/sparc/include/asm/scatterlist.h
+++ b/arch/sparc/include/asm/scatterlist.h
@@ -3,6 +3,8 @@
#define sg_dma_len(sg) ((sg)->dma_length)
+#define ISA_DMA_THRESHOLD (~0UL)
+
#include <asm-generic/scatterlist.h>
#endif /* !(_SPARC_SCATTERLIST_H) */
diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h
index 8b9454496a7..51a7a43ab0c 100644
--- a/include/asm-generic/scatterlist.h
+++ b/include/asm-generic/scatterlist.h
@@ -34,10 +34,6 @@ struct scatterlist {
#endif /* 64 bit */
#endif /* sg_dma_len */
-#ifndef ISA_DMA_THRESHOLD
-#define ISA_DMA_THRESHOLD (~0UL)
-#endif
-
#define ARCH_HAS_SG_CHAIN
#endif /* __ASM_GENERIC_SCATTERLIST_H */