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/*-
* Copyright (c) 2018 Instituto de Pesquisas Eldorado
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of the author nor the names of its contributors may
* be used to endorse or promote products derived from this software
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <machine/cpu.h>
#include <machine/ifunc.h>
#define _CAT(a,b) a##b
#define CAT(a,b) _CAT(a,b)
#define CAT3(a,b,c) CAT(CAT(a,b),c)
#ifdef MEMCOPY
#define FN_NAME memcpy
#define FN_RET void *
#define FN_PARAMS (void *dst, const void *src, size_t len)
#elif defined(MEMMOVE)
#define FN_NAME memmove
#define FN_RET void *
#define FN_PARAMS (void *dst, const void *src, size_t len)
#else
#define FN_NAME bcopy
#define FN_RET void
#define FN_PARAMS (const void *src, void *dst, size_t len)
#endif
#define FN_NAME_NOVSX CAT(__, FN_NAME)
#define FN_NAME_VSX CAT3(__, FN_NAME, _vsx)
FN_RET FN_NAME_NOVSX FN_PARAMS;
FN_RET FN_NAME_VSX FN_PARAMS;
DEFINE_UIFUNC(, FN_RET, FN_NAME, FN_PARAMS)
{
/* VSX instructions were added in POWER ISA 2.06,
* however it requires data to be word-aligned.
* Since POWER ISA 2.07B this is solved transparently
* by the hardware
*/
if (cpu_features & PPC_FEATURE_HAS_VSX)
return (FN_NAME_VSX);
else
return (FN_NAME_NOVSX);
}
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