Current Path : /sys/contrib/octeon-sdk/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/contrib/octeon-sdk/cvmx-swap.h |
/***********************license start*************** * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights * reserved. * * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of Cavium Networks nor the names of * its contributors may be used to endorse or promote products * derived from this software without specific prior written * permission. * This Software, including technical data, may be subject to U.S. export control * laws, including the U.S. Export Administration Act and its associated * regulations, and may be subject to export or import regulations in other * countries. * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. ***********************license end**************************************/ /** * @file * * Utility functions for endian swapping * * <hr>$Revision: 32636 $<hr> */ #ifndef __CVMX_SWAP_H__ #define __CVMX_SWAP_H__ #ifdef __cplusplus extern "C" { #endif /** * Byte swap a 16 bit number * * @param x 16 bit number * @return Byte swapped result */ static inline uint16_t cvmx_swap16(uint16_t x) { return ((uint16_t)((((uint16_t)(x) & (uint16_t)0x00ffU) << 8) | (((uint16_t)(x) & (uint16_t)0xff00U) >> 8) )); } /** * Byte swap a 32 bit number * * @param x 32 bit number * @return Byte swapped result */ static inline uint32_t cvmx_swap32(uint32_t x) { return ((uint32_t)((((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24) )); } /** * Byte swap a 64 bit number * * @param x 64 bit number * @return Byte swapped result */ static inline uint64_t cvmx_swap64(uint64_t x) { return ((x >> 56) | (((x >> 48) & 0xfful) << 8) | (((x >> 40) & 0xfful) << 16) | (((x >> 32) & 0xfful) << 24) | (((x >> 24) & 0xfful) << 32) | (((x >> 16) & 0xfful) << 40) | (((x >> 8) & 0xfful) << 48) | (((x >> 0) & 0xfful) << 56)); } #if __BYTE_ORDER == __BIG_ENDIAN #define cvmx_cpu_to_le16(x) cvmx_swap16(x) #define cvmx_cpu_to_le32(x) cvmx_swap32(x) #define cvmx_cpu_to_le64(x) cvmx_swap64(x) #define cvmx_cpu_to_be16(x) (x) #define cvmx_cpu_to_be32(x) (x) #define cvmx_cpu_to_be64(x) (x) #else #define cvmx_cpu_to_le16(x) (x) #define cvmx_cpu_to_le32(x) (x) #define cvmx_cpu_to_le64(x) (x) #define cvmx_cpu_to_be16(x) cvmx_swap16(x) #define cvmx_cpu_to_be32(x) cvmx_swap32(x) #define cvmx_cpu_to_be64(x) cvmx_swap64(x) #endif #define cvmx_le16_to_cpu(x) cvmx_cpu_to_le16(x) #define cvmx_le32_to_cpu(x) cvmx_cpu_to_le32(x) #define cvmx_le64_to_cpu(x) cvmx_cpu_to_le64(x) #define cvmx_be16_to_cpu(x) cvmx_cpu_to_be16(x) #define cvmx_be32_to_cpu(x) cvmx_cpu_to_be32(x) #define cvmx_be64_to_cpu(x) cvmx_cpu_to_be64(x) #ifdef __cplusplus } #endif #endif /* __CVMX_SWAP_H__ */