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authorIngo Molnar <mingo@elte.hu>2008-10-13 11:05:51 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-13 11:05:51 +0200
commitaccba5f3965d6a9d1bf7c1e1a7995d17e9d521b6 (patch)
tree8fb40782e79472ed882ff2098d4dd295557278ee /arch/sparc/include/asm/byteorder.h
parent6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff)
parent4480f15b3306f43bbb0310d461142b4e897ca45b (diff)
Merge branch 'linus' into oprofile-v2
Conflicts: arch/x86/kernel/apic_32.c arch/x86/oprofile/nmi_int.c include/linux/pci_ids.h
Diffstat (limited to 'arch/sparc/include/asm/byteorder.h')
-rw-r--r--arch/sparc/include/asm/byteorder.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/byteorder.h b/arch/sparc/include/asm/byteorder.h
new file mode 100644
index 000000000000..bcd83aa351c5
--- /dev/null
+++ b/arch/sparc/include/asm/byteorder.h
@@ -0,0 +1,57 @@
+#ifndef _SPARC_BYTEORDER_H
+#define _SPARC_BYTEORDER_H
+
+#include <asm/types.h>
+#include <asm/asi.h>
+
+#ifdef __GNUC__
+
+#ifdef CONFIG_SPARC32
+#define __SWAB_64_THRU_32__
+#endif
+
+#ifdef CONFIG_SPARC64
+
+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;
+}
+
+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;
+}
+
+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__swab16p(x) ___arch__swab16p(x)
+#define __arch__swab32p(x) ___arch__swab32p(x)
+#define __arch__swab64p(x) ___arch__swab64p(x)
+
+#endif /* CONFIG_SPARC64 */
+
+#define __BYTEORDER_HAS_U64__
+
+#endif
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _SPARC_BYTEORDER_H */