1 /***********************license start*************** 2 * Copyright (c) 2003-2010 Cavium Inc. ([email protected]). All rights 3 * reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 18 * * Neither the name of Cavium Inc. nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written 21 * permission. 22 23 * This Software, including technical data, may be subject to U.S. export control 24 * laws, including the U.S. Export Administration Act and its associated 25 * regulations, and may be subject to export or import regulations in other 26 * countries. 27 28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38 ***********************license end**************************************/ 39 40 41 42 /** 43 * @file 44 * 45 * This file defines macros for use in determining the current calling ABI. 46 * 47 * <hr>$Revision: 70030 $<hr> 48 */ 49 50 #ifndef __CVMX_ABI_H__ 51 #define __CVMX_ABI_H__ 52 53 #if defined(__FreeBSD__) && defined(_KERNEL) 54 #include <machine/endian.h> 55 #else 56 #ifndef __U_BOOT__ 57 #include <endian.h> 58 #endif 59 #endif 60 61 #ifdef __cplusplus 62 extern "C" { 63 #endif 64 65 /* Check for N32 ABI, defined for 32-bit Simple Exec applications 66 and Linux N32 ABI.*/ 67 #if (defined _ABIN32 && _MIPS_SIM == _ABIN32) 68 #define CVMX_ABI_N32 69 /* Check for N64 ABI, defined for 64-bit Linux toolchain. */ 70 #elif (defined _ABI64 && _MIPS_SIM == _ABI64) 71 #define CVMX_ABI_N64 72 /* Check for O32 ABI, defined for Linux 032 ABI, not supported yet. */ 73 #elif (defined _ABIO32 && _MIPS_SIM == _ABIO32) 74 #define CVMX_ABI_O32 75 /* Check for EABI ABI, defined for 64-bit Simple Exec applications. */ 76 #else 77 #define CVMX_ABI_EABI 78 #endif 79 80 #ifndef __BYTE_ORDER 81 #if defined(__BIG_ENDIAN) && !defined(__LITTLE_ENDIAN) 82 #define __BYTE_ORDER __BIG_ENDIAN 83 #elif !defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN) 84 #define __BYTE_ORDER __LITTLE_ENDIAN 85 #define __BIG_ENDIAN 4321 86 #elif !defined(__BIG_ENDIAN) && !defined(__LITTLE_ENDIAN) 87 #define __BIG_ENDIAN 4321 88 #define __BYTE_ORDER __BIG_ENDIAN 89 #else 90 #error Unable to determine Endian mode 91 #endif 92 #endif 93 94 /* For compatibility with Linux definitions... */ 95 #if __BYTE_ORDER == __BIG_ENDIAN 96 # ifndef __BIG_ENDIAN_BITFIELD 97 # define __BIG_ENDIAN_BITFIELD 98 # endif 99 #else 100 # ifndef __LITTLE_ENDIAN_BITFIELD 101 # define __LITTLE_ENDIAN_BITFIELD 102 # endif 103 #endif 104 #if defined(__BIG_ENDIAN_BITFIELD) && defined(__LITTLE_ENDIAN_BITFIELD) 105 # error Cannot define both __BIG_ENDIAN_BITFIELD and __LITTLE_ENDIAN_BITFIELD 106 #endif 107 108 #ifdef __cplusplus 109 } 110 #endif 111 112 #endif /* __CVMX_ABI_H__ */ 113