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