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| author | Ley Foon Tan | 2014-11-06 08:20:09 +0100 |
|---|---|---|
| committer | Ley Foon Tan | 2014-12-08 05:56:03 +0100 |
| commit | 97da0d62d4eafe820a85d89da1457d6fad7f0afe (patch) | |
| tree | 5a3e7d05bda387a0a1e97a58c1ef1ac03037a63a /arch/nios2/include/uapi/asm/swab.h | |
| parent | nios2: Cpuinfo handling (diff) | |
| download | kernel-qcow2-linux-97da0d62d4eafe820a85d89da1457d6fad7f0afe.tar.gz kernel-qcow2-linux-97da0d62d4eafe820a85d89da1457d6fad7f0afe.tar.xz kernel-qcow2-linux-97da0d62d4eafe820a85d89da1457d6fad7f0afe.zip | |
nios2: Miscellaneous header files
This patch introduces a few nios2-specific header files.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Diffstat (limited to 'arch/nios2/include/uapi/asm/swab.h')
| -rw-r--r-- | arch/nios2/include/uapi/asm/swab.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/nios2/include/uapi/asm/swab.h b/arch/nios2/include/uapi/asm/swab.h new file mode 100644 index 000000000000..b4e22ebaeb17 --- /dev/null +++ b/arch/nios2/include/uapi/asm/swab.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2012 Tobias Klauser <tklauser@distanz.ch> + * Copyright (C) 2011 Pyramid Technical Consultants, Inc. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + */ + +#ifndef _ASM_NIOS2_SWAB_H +#define _ASM_NIOS2_SWAB_H + +#include <linux/types.h> +#include <asm-generic/swab.h> + +#ifdef CONFIG_NIOS2_CI_SWAB_SUPPORT +#ifdef __GNUC__ + +#define __nios2_swab(x) \ + __builtin_custom_ini(CONFIG_NIOS2_CI_SWAB_NO, (x)) + +static inline __attribute__((const)) __u16 __arch_swab16(__u16 x) +{ + return (__u16) __nios2_swab(((__u32) x) << 16); +} +#define __arch_swab16 __arch_swab16 + +static inline __attribute__((const)) __u32 __arch_swab32(__u32 x) +{ + return (__u32) __nios2_swab(x); +} +#define __arch_swab32 __arch_swab32 + +#endif /* __GNUC__ */ +#endif /* CONFIG_NIOS2_CI_SWAB_SUPPORT */ + +#endif /* _ASM_NIOS2_SWAB_H */ |