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authorDavid Howells <dhowells@redhat.com>2012-10-09 09:47:37 +0100
committerDavid Howells <dhowells@redhat.com>2012-10-09 09:47:37 +0100
commit0a9426df1858f71ac84eb7eef500b4247de5e3bb (patch)
tree82983766b53c18f5da8602f16ed0b67ae2a957fb /arch/sh/include/uapi/asm/swab.h
parentMerge branch 'akpm' (Andrew's patch-bomb) (diff)
downloadlinux-dev-0a9426df1858f71ac84eb7eef500b4247de5e3bb.tar.xz
linux-dev-0a9426df1858f71ac84eb7eef500b4247de5e3bb.zip
UAPI: (Scripted) Disintegrate arch/sh/include/asm
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/sh/include/uapi/asm/swab.h')
-rw-r--r--arch/sh/include/uapi/asm/swab.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/sh/include/uapi/asm/swab.h b/arch/sh/include/uapi/asm/swab.h
new file mode 100644
index 000000000000..1cd09767a7a3
--- /dev/null
+++ b/arch/sh/include/uapi/asm/swab.h
@@ -0,0 +1,59 @@
+#ifndef __ASM_SH_SWAB_H
+#define __ASM_SH_SWAB_H
+
+/*
+ * Copyright (C) 1999 Niibe Yutaka
+ * Copyright (C) 2000, 2001 Paolo Alberelli
+ */
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm-generic/swab.h>
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+ __asm__(
+#ifdef __SH5__
+ "byterev %1, %0\n\t"
+ "shari %0, 32, %0"
+#else
+ "swap.b %1, %0\n\t"
+ "swap.w %0, %0\n\t"
+ "swap.b %0, %0"
+#endif
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch_swab32 __arch_swab32
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+ __asm__(
+#ifdef __SH5__
+ "byterev %1, %0\n\t"
+ "shari %0, 32, %0"
+#else
+ "swap.b %1, %0"
+#endif
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __u64 __arch_swab64(__u64 val)
+{
+ union {
+ struct { __u32 a,b; } s;
+ __u64 u;
+ } v, w;
+ v.u = val;
+ w.s.b = __arch_swab32(v.s.a);
+ w.s.a = __arch_swab32(v.s.b);
+ return w.u;
+}
+#define __arch_swab64 __arch_swab64
+
+#endif /* __ASM_SH_SWAB_H */