Merge tag 'pci-v6.16-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
[linux-2.6-block.git] / arch / microblaze / include / asm / checksum.h
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4726dd60 1/* SPDX-License-Identifier: GPL-2.0 */
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2/*
3 * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
4 * Copyright (C) 2006 Atmark Techno, Inc.
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5 */
6
7#ifndef _ASM_MICROBLAZE_CHECKSUM_H
8#define _ASM_MICROBLAZE_CHECKSUM_H
9
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10/*
11 * computes the checksum of the TCP/UDP pseudo-header
12 * returns a 16-bit checksum, already complemented
13 */
14f87389 14#define csum_tcpudp_nofold csum_tcpudp_nofold
f11e044b 15static inline __wsum
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16csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len,
17 __u8 proto, __wsum sum)
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18{
19 __asm__("add %0, %0, %1\n\t"
20 "addc %0, %0, %2\n\t"
21 "addc %0, %0, %3\n\t"
22 "addc %0, %0, r0\n\t"
23 : "+&d" (sum)
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24 : "d" (saddr), "d" (daddr),
25#ifdef __MICROBLAZEEL__
26 "d" ((len + proto) << 8)
27#else
28 "d" (len + proto)
29#endif
30);
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31 return sum;
32}
33
14f87389 34#include <asm-generic/checksum.h>
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35
36#endif /* _ASM_MICROBLAZE_CHECKSUM_H */