1/* 2 * Copyright (C) 2011 Texas Instruments Incorporated 3 * Author: Mark Salter <msalter@redhat.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 */ 9#ifndef _ASM_C6X_CHECKSUM_H 10#define _ASM_C6X_CHECKSUM_H 11 12static inline __wsum 13csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, 14 unsigned short proto, __wsum sum) 15{ 16 unsigned long long tmp; 17 18 asm ("add .d1 %1,%5,%1\n" 19 "|| addu .l1 %3,%4,%0\n" 20 "addu .l1 %2,%0,%0\n" 21#ifndef CONFIG_CPU_BIG_ENDIAN 22 "|| shl .s1 %1,8,%1\n" 23#endif 24 "addu .l1 %1,%0,%0\n" 25 "add .l1 %P0,%p0,%2\n" 26 : "=&a"(tmp), "+a"(len), "+a"(sum) 27 : "a" (saddr), "a" (daddr), "a" (proto)); 28 return sum; 29} 30#define csum_tcpudp_nofold csum_tcpudp_nofold 31 32#include <asm-generic/checksum.h> 33 34#endif /* _ASM_C6X_CHECKSUM_H */ 35