mirror of https://gitee.com/openkylin/linux.git
35 lines
966 B
C
35 lines
966 B
C
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/*
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* Copyright (C) 2011 Texas Instruments Incorporated
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* Author: Mark Salter <msalter@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _ASM_C6X_CHECKSUM_H
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#define _ASM_C6X_CHECKSUM_H
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static inline __wsum
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csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
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unsigned short proto, __wsum sum)
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{
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unsigned long long tmp;
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asm ("add .d1 %1,%5,%1\n"
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"|| addu .l1 %3,%4,%0\n"
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"addu .l1 %2,%0,%0\n"
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#ifndef CONFIG_CPU_BIG_ENDIAN
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"|| shl .s1 %1,8,%1\n"
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#endif
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"addu .l1 %1,%0,%0\n"
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"add .l1 %P0,%p0,%2\n"
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: "=&a"(tmp), "+a"(len), "+a"(sum)
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: "a" (saddr), "a" (daddr), "a" (proto));
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return sum;
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}
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#define csum_tcpudp_nofold csum_tcpudp_nofold
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#include <asm-generic/checksum.h>
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#endif /* _ASM_C6X_CHECKSUM_H */
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