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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-10 11:12:03 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-10 11:12:03 +0900
commit23d5385f382a7c7d8b6bf19b0c2cfb3acbb12d31 (patch)
treeb0e2fbbdd8a9b86e0074affd58e35bea9c22e175 /arch/sparc/include/uapi/asm/swab.h
parentb7e97d22113bcaafff93774e3085f5b567eaba9c (diff)
parent9836d3458cde82626f2828ca6bd44c4a02b56e63 (diff)
downloadblackbird-op-linux-23d5385f382a7c7d8b6bf19b0c2cfb3acbb12d31.tar.gz
blackbird-op-linux-23d5385f382a7c7d8b6bf19b0c2cfb3acbb12d31.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc update from David Miller: "This is just the UAPI commits for sparc via David Howells." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: UAPI: (Scripted) Disintegrate arch/sparc/include/asm
Diffstat (limited to 'arch/sparc/include/uapi/asm/swab.h')
-rw-r--r--arch/sparc/include/uapi/asm/swab.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/sparc/include/uapi/asm/swab.h b/arch/sparc/include/uapi/asm/swab.h
new file mode 100644
index 000000000000..a34ad079487e
--- /dev/null
+++ b/arch/sparc/include/uapi/asm/swab.h
@@ -0,0 +1,45 @@
+#ifndef _SPARC_SWAB_H
+#define _SPARC_SWAB_H
+
+#include <linux/types.h>
+#include <asm/asi.h>
+
+#if defined(__sparc__) && defined(__arch64__)
+static inline __u16 __arch_swab16p(const __u16 *addr)
+{
+ __u16 ret;
+
+ __asm__ __volatile__ ("lduha [%1] %2, %0"
+ : "=r" (ret)
+ : "r" (addr), "i" (ASI_PL));
+ return ret;
+}
+#define __arch_swab16p __arch_swab16p
+
+static inline __u32 __arch_swab32p(const __u32 *addr)
+{
+ __u32 ret;
+
+ __asm__ __volatile__ ("lduwa [%1] %2, %0"
+ : "=r" (ret)
+ : "r" (addr), "i" (ASI_PL));
+ return ret;
+}
+#define __arch_swab32p __arch_swab32p
+
+static inline __u64 __arch_swab64p(const __u64 *addr)
+{
+ __u64 ret;
+
+ __asm__ __volatile__ ("ldxa [%1] %2, %0"
+ : "=r" (ret)
+ : "r" (addr), "i" (ASI_PL));
+ return ret;
+}
+#define __arch_swab64p __arch_swab64p
+
+#else
+#define __SWAB_64_THRU_32__
+#endif /* defined(__sparc__) && defined(__arch64__) */
+
+#endif /* _SPARC_SWAB_H */
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