From be4146161b5316f4e7fb51c5a3c9ac0e5622c42d Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 16 Jan 2011 12:12:32 +0100 Subject: import swab.h arch implementation form linux v2.3.37 this will avoid __bswapsi2 issue see with gcc 4.5.1 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Sascha Hauer --- arch/blackfin/include/asm/bitsperlong.h | 1 + arch/blackfin/include/asm/swab.h | 50 +++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) create mode 100644 arch/blackfin/include/asm/bitsperlong.h create mode 100644 arch/blackfin/include/asm/swab.h (limited to 'arch/blackfin/include') diff --git a/arch/blackfin/include/asm/bitsperlong.h b/arch/blackfin/include/asm/bitsperlong.h new file mode 100644 index 0000000000..6dc0bb0c13 --- /dev/null +++ b/arch/blackfin/include/asm/bitsperlong.h @@ -0,0 +1 @@ +#include diff --git a/arch/blackfin/include/asm/swab.h b/arch/blackfin/include/asm/swab.h new file mode 100644 index 0000000000..89de6507ca --- /dev/null +++ b/arch/blackfin/include/asm/swab.h @@ -0,0 +1,50 @@ +/* + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef _BLACKFIN_SWAB_H +#define _BLACKFIN_SWAB_H + +#include +#include + +#ifdef __GNUC__ + +static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx) +{ + __u32 tmp; + __asm__("%1 = %0 >> 8 (V);\n\t" + "%0 = %0 << 8 (V);\n\t" + "%0 = %0 | %1;\n\t" + : "+d"(xx), "=&d"(tmp)); + return xx; +} +#define __arch_swahb32 __arch_swahb32 + +static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx) +{ + __u32 rv; + __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx)); + return rv; +} +#define __arch_swahw32 __arch_swahw32 + +static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx) +{ + return __arch_swahb32(__arch_swahw32(xx)); +} +#define __arch_swab32 __arch_swab32 + +static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx) +{ + __u32 xw = xx; + __asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw)); + return (__u16)xw; +} +#define __arch_swab16 __arch_swab16 + +#endif /* __GNUC__ */ + +#endif /* _BLACKFIN_SWAB_H */ -- cgit v1.2.3