zfs/module/icp/algs/edonr/edonr_byteorder.h - backupdr - Git at Google

 /*
  * IDI,NTNU
  *
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
  * Common Development and Distribution License (the "License").
  * You may not use this file except in compliance with the License.
  *
  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  * or http://opensource.org/licenses/CDDL-1.0.
  * See the License for the specific language governing permissions
  * and limitations under the License.
  *
  * When distributing Covered Code, include this CDDL HEADER in each
  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  * If applicable, add the following below this CDDL HEADER, with the
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  *
  * Copyright (C) 2009, 2010, Jorn Amundsen <jorn.amundsen@ntnu.no>
  *
  * C header file to determine compile machine byte order. Take care when cross
  * compiling.
  *
  * $Id: byteorder.h 517 2013-02-17 20:34:39Z joern $
  */
 /*
  * Portions copyright (c) 2013, Saso Kiselkov, All rights reserved
  */

 #ifndef _CRYPTO_EDONR_BYTEORDER_H
 #define	_CRYPTO_EDONR_BYTEORDER_H

 #include <sys/sysmacros.h>
 #include <sys/param.h>

 #if defined(__BYTE_ORDER)
 #if (__BYTE_ORDER == __BIG_ENDIAN)
 #define	MACHINE_IS_BIG_ENDIAN
 #elif (__BYTE_ORDER == __LITTLE_ENDIAN)
 #define	MACHINE_IS_LITTLE_ENDIAN
 #endif
 #elif defined(BYTE_ORDER)
 #if (BYTE_ORDER == BIG_ENDIAN)
 #define	MACHINE_IS_BIG_ENDIAN
 #elif (BYTE_ORDER == LITTLE_ENDIAN)
 #define	MACHINE_IS_LITTLE_ENDIAN
 #endif
 #endif /* __BYTE_ORDER || BYTE_ORDER */

 #if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN)
 #if defined(_ZFS_BIG_ENDIAN) || defined(_MIPSEB)
 #define	MACHINE_IS_BIG_ENDIAN
 #endif
 #if defined(_ZFS_LITTLE_ENDIAN) || defined(_MIPSEL)
 #define	MACHINE_IS_LITTLE_ENDIAN
 #endif
 #endif /* !MACHINE_IS_BIG_ENDIAN && !MACHINE_IS_LITTLE_ENDIAN */

 #if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN)
 #error unknown machine byte sex
 #endif

 #define	BYTEORDER_INCLUDED

 #if defined(MACHINE_IS_BIG_ENDIAN)
 /*
  * Byte swapping macros for big endian architectures and compilers,
  * add as appropriate for other architectures and/or compilers.
  *
  *     ld_swap64(src,dst) : uint64_t dst = *(src)
  *     st_swap64(src,dst) : *(dst)       = uint64_t src
  */

 #if defined(__PPC__) || defined(_ARCH_PPC)

 #if defined(__64BIT__)
 #if defined(_ARCH_PWR7)
 #define	aix_ld_swap64(s64, d64)\
 	__asm__("ldbrx %0,0,%1" : "=r"(d64) : "r"(s64))
 #define	aix_st_swap64(s64, d64)\
 	__asm__ volatile("stdbrx %1,0,%0" : : "r"(d64), "r"(s64))
 #else
 #define	aix_ld_swap64(s64, d64)						\
 {									\
 	uint64_t *s4 = 0, h; /* initialize to zero for gcc warning */	\
 									\
 	__asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0;rldimi %1,%2,32,0"\
 		: "+r"(s4), "=r"(d64), "=r"(h) : "b"(s64));		\
 }

 #define	aix_st_swap64(s64, d64)						\
 {									\
 	uint64_t *s4 = 0, h; /* initialize to zero for gcc warning */	\
 	h = (s64) >> 32;						\
 	__asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0"	\
 		: "+r"(s4) : "r"(s64), "r"(h), "b"(d64));		\
 }
 #endif /* 64BIT && PWR7 */
 #else
 #define	aix_ld_swap64(s64, d64)						\
 {									\
 	uint32_t *s4 = 0, h, l;	/* initialize to zero for gcc warning */\
 	__asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0"		\
 		: "+r"(s4), "=r"(l), "=r"(h) : "b"(s64));		\
 	d64 = ((uint64_t)h<<32) | l;					\
 }

 #define	aix_st_swap64(s64, d64)						\
 {									\
 	uint32_t *s4 = 0, h, l; /* initialize to zero for gcc warning */\
 	l = (s64) & 0xfffffffful, h = (s64) >> 32;			\
 	__asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0"	\
 		: "+r"(s4) : "r"(l), "r"(h), "b"(d64));			\
 }
 #endif /* __64BIT__ */
 #define	aix_ld_swap32(s32, d32)\
 	__asm__("lwbrx %0,0,%1" : "=r"(d32) : "r"(s32))
 #define	aix_st_swap32(s32, d32)\
 	__asm__ volatile("stwbrx %1,0,%0" : : "r"(d32), "r"(s32))
 #define	ld_swap32(s, d) aix_ld_swap32(s, d)
 #define	st_swap32(s, d) aix_st_swap32(s, d)
 #define	ld_swap64(s, d) aix_ld_swap64(s, d)
 #define	st_swap64(s, d) aix_st_swap64(s, d)
 #endif /* __PPC__ || _ARCH_PPC */

 #if defined(__sparc)
 #if !defined(__arch64__) && !defined(__sparcv8) && defined(__sparcv9)
 #define	__arch64__
 #endif
 #if defined(__GNUC__) || (defined(__SUNPRO_C) && __SUNPRO_C > 0x590)
 /* need Sun Studio C 5.10 and above for GNU inline assembly */
 #if defined(__arch64__)
 #define	sparc_ld_swap64(s64, d64)					\
 	__asm__("ldxa [%1]0x88,%0" : "=r"(d64) : "r"(s64))
 #define	sparc_st_swap64(s64, d64)					\
 	__asm__ volatile("stxa %0,[%1]0x88" : : "r"(s64), "r"(d64))
 #define	st_swap64(s, d) sparc_st_swap64(s, d)
 #else
 #define	sparc_ld_swap64(s64, d64)					\
 {									\
 	uint32_t *s4, h, l;						\
 	__asm__("add %3,4,%0\n\tlda [%3]0x88,%1\n\tlda [%0]0x88,%2"	\
 		: "+r"(s4), "=r"(l), "=r"(h) : "r"(s64));		\
 	d64 = ((uint64_t)h<<32) | l;					\
 }
 #define	sparc_st_swap64(s64, d64)					\
 {									\
 	uint32_t *s4, h, l;						\
 	l = (s64) & 0xfffffffful, h = (s64) >> 32;			\
 	__asm__ volatile("add %3,4,%0\n\tsta %1,[%3]0x88\n\tsta %2,[%0]0x88"\
 		: "+r"(s4) : "r"(l), "r"(h), "r"(d64));			\
 }
 #endif /* sparc64 */
 #define	sparc_ld_swap32(s32, d32)\
 	__asm__("lda [%1]0x88,%0" : "=r"(d32) : "r"(s32))
 #define	sparc_st_swap32(s32, d32)\
 	__asm__ volatile("sta %0,[%1]0x88" : : "r"(s32), "r"(d32))
 #define	ld_swap32(s, d) sparc_ld_swap32(s, d)
 #define	st_swap32(s, d) sparc_st_swap32(s, d)
 #define	ld_swap64(s, d) sparc_ld_swap64(s, d)
 #define	st_swap64(s, d) sparc_st_swap64(s, d)
 #endif /* GCC || Sun Studio C > 5.9 */
 #endif /* sparc */

 /* GCC fallback */
 #if ((__GNUC__ >= 4) || defined(__PGIC__)) && !defined(ld_swap32)
 #define	ld_swap32(s, d) (d = __builtin_bswap32(*(s)))
 #define	st_swap32(s, d) (*(d) = __builtin_bswap32(s))
 #endif /* GCC4/PGIC && !swap32 */
 #if ((__GNUC__ >= 4) || defined(__PGIC__)) && !defined(ld_swap64)
 #define	ld_swap64(s, d) (d = __builtin_bswap64(*(s)))
 #define	st_swap64(s, d) (*(d) = __builtin_bswap64(s))
 #endif /* GCC4/PGIC && !swap64 */

 /* generic fallback */
 #if !defined(ld_swap32)
 #define	ld_swap32(s, d)							\
 	(d = (*(s) >> 24) | (*(s) >> 8 & 0xff00) |			\
 	(*(s) << 8 & 0xff0000) | (*(s) << 24))
 #define	st_swap32(s, d)							\
 	(*(d) = ((s) >> 24) | ((s) >> 8 & 0xff00) |			\
 	((s) << 8 & 0xff0000) | ((s) << 24))
 #endif
 #if !defined(ld_swap64)
 #define	ld_swap64(s, d)							\
 	(d = (*(s) >> 56) | (*(s) >> 40 & 0xff00) |			\
 	(*(s) >> 24 & 0xff0000) | (*(s) >> 8 & 0xff000000) |		\
 	(*(s) & 0xff000000) << 8 | (*(s) & 0xff0000) << 24 |		\
 	(*(s) & 0xff00) << 40 | *(s) << 56)
 #define	st_swap64(s, d)							\
 	(*(d) = ((s) >> 56) | ((s) >> 40 & 0xff00) |			\
 	((s) >> 24 & 0xff0000) | ((s) >> 8 & 0xff000000) |		\
 	((s) & 0xff000000) << 8 | ((s) & 0xff0000) << 24 |		\
 	((s) & 0xff00) << 40 | (s) << 56)
 #endif

 #endif /* MACHINE_IS_BIG_ENDIAN */


 #if defined(MACHINE_IS_LITTLE_ENDIAN)
 /* replace swaps with simple assignments on little endian systems */
 #undef	ld_swap32
 #undef	st_swap32
 #define	ld_swap32(s, d) (d = *(s))
 #define	st_swap32(s, d) (*(d) = s)
 #undef	ld_swap64
 #undef	st_swap64
 #define	ld_swap64(s, d) (d = *(s))
 #define	st_swap64(s, d) (*(d) = s)
 #endif /* MACHINE_IS_LITTLE_ENDIAN */

 #endif /* _CRYPTO_EDONR_BYTEORDER_H */
	/*
	* IDI,NTNU
	*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://opensource.org/licenses/CDDL-1.0.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*
	* Copyright (C) 2009, 2010, Jorn Amundsen <jorn.amundsen@ntnu.no>
	*
	* C header file to determine compile machine byte order. Take care when cross
	* compiling.
	*
	* $Id: byteorder.h 517 2013-02-17 20:34:39Z joern $
	*/
	/*
	* Portions copyright (c) 2013, Saso Kiselkov, All rights reserved
	*/

	#ifndef _CRYPTO_EDONR_BYTEORDER_H
	#define _CRYPTO_EDONR_BYTEORDER_H

	#include <sys/sysmacros.h>
	#include <sys/param.h>

	#if defined(__BYTE_ORDER)
	#if (__BYTE_ORDER == __BIG_ENDIAN)
	#define MACHINE_IS_BIG_ENDIAN
	#elif (__BYTE_ORDER == __LITTLE_ENDIAN)
	#define MACHINE_IS_LITTLE_ENDIAN
	#endif
	#elif defined(BYTE_ORDER)
	#if (BYTE_ORDER == BIG_ENDIAN)
	#define MACHINE_IS_BIG_ENDIAN
	#elif (BYTE_ORDER == LITTLE_ENDIAN)
	#define MACHINE_IS_LITTLE_ENDIAN
	#endif
	#endif /* __BYTE_ORDER \|\| BYTE_ORDER */

	#if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN)
	#if defined(_ZFS_BIG_ENDIAN) \|\| defined(_MIPSEB)
	#define MACHINE_IS_BIG_ENDIAN
	#endif
	#if defined(_ZFS_LITTLE_ENDIAN) \|\| defined(_MIPSEL)
	#define MACHINE_IS_LITTLE_ENDIAN
	#endif
	#endif /* !MACHINE_IS_BIG_ENDIAN && !MACHINE_IS_LITTLE_ENDIAN */

	#if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN)
	#error unknown machine byte sex
	#endif

	#define BYTEORDER_INCLUDED

	#if defined(MACHINE_IS_BIG_ENDIAN)
	/*
	* Byte swapping macros for big endian architectures and compilers,
	* add as appropriate for other architectures and/or compilers.
	*
	* ld_swap64(src,dst) : uint64_t dst = *(src)
	* st_swap64(src,dst) : *(dst) = uint64_t src
	*/

	#if defined(__PPC__) \|\| defined(_ARCH_PPC)

	#if defined(__64BIT__)
	#if defined(_ARCH_PWR7)
	#define aix_ld_swap64(s64, d64)\
	__asm__("ldbrx %0,0,%1" : "=r"(d64) : "r"(s64))
	#define aix_st_swap64(s64, d64)\
	__asm__ volatile("stdbrx %1,0,%0" : : "r"(d64), "r"(s64))
	#else
	#define aix_ld_swap64(s64, d64) \
	{ \
	uint64_t s4 = 0, h; / initialize to zero for gcc warning */ \
	\
	__asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0;rldimi %1,%2,32,0"\
	: "+r"(s4), "=r"(d64), "=r"(h) : "b"(s64)); \
	}

	#define aix_st_swap64(s64, d64) \
	{ \
	uint64_t s4 = 0, h; / initialize to zero for gcc warning */ \
	h = (s64) >> 32; \
	__asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0" \
	: "+r"(s4) : "r"(s64), "r"(h), "b"(d64)); \
	}
	#endif /* 64BIT && PWR7 */
	#else
	#define aix_ld_swap64(s64, d64) \
	{ \
	uint32_t s4 = 0, h, l; / initialize to zero for gcc warning */\
	__asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0" \
	: "+r"(s4), "=r"(l), "=r"(h) : "b"(s64)); \
	d64 = ((uint64_t)h<<32) \| l; \
	}

	#define aix_st_swap64(s64, d64) \
	{ \
	uint32_t s4 = 0, h, l; / initialize to zero for gcc warning */\
	l = (s64) & 0xfffffffful, h = (s64) >> 32; \
	__asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0" \
	: "+r"(s4) : "r"(l), "r"(h), "b"(d64)); \
	}
	#endif /* __64BIT__ */
	#define aix_ld_swap32(s32, d32)\
	__asm__("lwbrx %0,0,%1" : "=r"(d32) : "r"(s32))
	#define aix_st_swap32(s32, d32)\
	__asm__ volatile("stwbrx %1,0,%0" : : "r"(d32), "r"(s32))
	#define ld_swap32(s, d) aix_ld_swap32(s, d)
	#define st_swap32(s, d) aix_st_swap32(s, d)
	#define ld_swap64(s, d) aix_ld_swap64(s, d)
	#define st_swap64(s, d) aix_st_swap64(s, d)
	#endif /* __PPC__ \|\| _ARCH_PPC */

	#if defined(__sparc)
	#if !defined(__arch64__) && !defined(__sparcv8) && defined(__sparcv9)
	#define __arch64__
	#endif
	#if defined(__GNUC__) \|\| (defined(__SUNPRO_C) && __SUNPRO_C > 0x590)
	/* need Sun Studio C 5.10 and above for GNU inline assembly */
	#if defined(__arch64__)
	#define sparc_ld_swap64(s64, d64) \
	__asm__("ldxa [%1]0x88,%0" : "=r"(d64) : "r"(s64))
	#define sparc_st_swap64(s64, d64) \
	__asm__ volatile("stxa %0,[%1]0x88" : : "r"(s64), "r"(d64))
	#define st_swap64(s, d) sparc_st_swap64(s, d)
	#else
	#define sparc_ld_swap64(s64, d64) \
	{ \
	uint32_t *s4, h, l; \
	__asm__("add %3,4,%0\n\tlda [%3]0x88,%1\n\tlda [%0]0x88,%2" \
	: "+r"(s4), "=r"(l), "=r"(h) : "r"(s64)); \
	d64 = ((uint64_t)h<<32) \| l; \
	}
	#define sparc_st_swap64(s64, d64) \
	{ \
	uint32_t *s4, h, l; \
	l = (s64) & 0xfffffffful, h = (s64) >> 32; \
	__asm__ volatile("add %3,4,%0\n\tsta %1,[%3]0x88\n\tsta %2,[%0]0x88"\
	: "+r"(s4) : "r"(l), "r"(h), "r"(d64)); \
	}
	#endif /* sparc64 */
	#define sparc_ld_swap32(s32, d32)\
	__asm__("lda [%1]0x88,%0" : "=r"(d32) : "r"(s32))
	#define sparc_st_swap32(s32, d32)\
	__asm__ volatile("sta %0,[%1]0x88" : : "r"(s32), "r"(d32))
	#define ld_swap32(s, d) sparc_ld_swap32(s, d)
	#define st_swap32(s, d) sparc_st_swap32(s, d)
	#define ld_swap64(s, d) sparc_ld_swap64(s, d)
	#define st_swap64(s, d) sparc_st_swap64(s, d)
	#endif /* GCC \|\| Sun Studio C > 5.9 */
	#endif /* sparc */

	/* GCC fallback */
	#if ((__GNUC__ >= 4) \|\| defined(__PGIC__)) && !defined(ld_swap32)
	#define ld_swap32(s, d) (d = __builtin_bswap32(*(s)))
	#define st_swap32(s, d) (*(d) = __builtin_bswap32(s))
	#endif /* GCC4/PGIC && !swap32 */
	#if ((__GNUC__ >= 4) \|\| defined(__PGIC__)) && !defined(ld_swap64)
	#define ld_swap64(s, d) (d = __builtin_bswap64(*(s)))
	#define st_swap64(s, d) (*(d) = __builtin_bswap64(s))
	#endif /* GCC4/PGIC && !swap64 */

	/* generic fallback */
	#if !defined(ld_swap32)
	#define ld_swap32(s, d) \
	(d = ((s) >> 24) \| ((s) >> 8 & 0xff00) \| \
	((s) << 8 & 0xff0000) \| ((s) << 24))
	#define st_swap32(s, d) \
	(*(d) = ((s) >> 24) \| ((s) >> 8 & 0xff00) \| \
	((s) << 8 & 0xff0000) \| ((s) << 24))
	#endif
	#if !defined(ld_swap64)
	#define ld_swap64(s, d) \
	(d = ((s) >> 56) \| ((s) >> 40 & 0xff00) \| \
	((s) >> 24 & 0xff0000) \| ((s) >> 8 & 0xff000000) \| \
	((s) & 0xff000000) << 8 \| ((s) & 0xff0000) << 24 \| \
	((s) & 0xff00) << 40 \| (s) << 56)
	#define st_swap64(s, d) \
	(*(d) = ((s) >> 56) \| ((s) >> 40 & 0xff00) \| \
	((s) >> 24 & 0xff0000) \| ((s) >> 8 & 0xff000000) \| \
	((s) & 0xff000000) << 8 \| ((s) & 0xff0000) << 24 \| \
	((s) & 0xff00) << 40 \| (s) << 56)
	#endif

	#endif /* MACHINE_IS_BIG_ENDIAN */


	#if defined(MACHINE_IS_LITTLE_ENDIAN)
	/* replace swaps with simple assignments on little endian systems */
	#undef ld_swap32
	#undef st_swap32
	#define ld_swap32(s, d) (d = *(s))
	#define st_swap32(s, d) (*(d) = s)
	#undef ld_swap64
	#undef st_swap64
	#define ld_swap64(s, d) (d = *(s))
	#define st_swap64(s, d) (*(d) = s)
	#endif /* MACHINE_IS_LITTLE_ENDIAN */

	#endif /* _CRYPTO_EDONR_BYTEORDER_H */