/* * Copyright 2010 Tilera Corporation. All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, version 2. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for * more details. */ #ifndef _ASM_TILE_CHECKSUM_H #define _ASM_TILE_CHECKSUM_H #include <asm-generic/checksum.h> /* Allow us to provide a more optimized do_csum(). */ __wsum do_csum(const unsigned char *buff, int len); #define do_csum do_csum /* * Return the sum of all the 16-bit subwords in a long. * This sums two subwords on a 32-bit machine, and four on 64 bits. * The implementation does two vector adds to capture any overflow. */
static inline unsigned int csum_long(unsigned long x) { unsigned long ret; #ifdef __tilegx__ ret = __insn_v2sadu(x, 0); ret = __insn_v2sadu(ret, 0); #else ret = __insn_sadh_u(x, 0); ret = __insn_sadh_u(ret, 0); #endif return ret; }Contributors
| Person | Tokens | Prop | Commits | CommitProp | |
| chris metcalf | chris metcalf | 62 | 100.00% | 1 | 100.00% |
| Total | 62 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp | |
| chris metcalf | chris metcalf | 94 | 100.00% | 2 | 100.00% |
| Total | 94 | 100.00% | 2 | 100.00% |