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/*
* Copyright 2013-2015 Samy Al Bahra.
* 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.
*
* 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.
*/
/*
* Copyright (c) 2012,2013 Intel Corporation
* Author: Andi Kleen
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef CK_PR_X86_64_RTM_H
#define CK_PR_X86_64_RTM_H
#ifndef CK_PR_X86_64_H
#error Do not include this file directly, use ck_pr.h
#endif
#define CK_F_PR_RTM
#include <ck_cc.h>
#include <ck_stdbool.h>
#define CK_PR_RTM_STARTED (~0U)
#define CK_PR_RTM_EXPLICIT (1 << 0)
#define CK_PR_RTM_RETRY (1 << 1)
#define CK_PR_RTM_CONFLICT (1 << 2)
#define CK_PR_RTM_CAPACITY (1 << 3)
#define CK_PR_RTM_DEBUG (1 << 4)
#define CK_PR_RTM_NESTED (1 << 5)
#define CK_PR_RTM_CODE(x) (((x) >> 24) & 0xFF)
CK_CC_INLINE static unsigned int
ck_pr_rtm_begin(void)
{
unsigned int r = CK_PR_RTM_STARTED;
__asm__ __volatile__(".byte 0xc7,0xf8;"
".long 0;"
: "+a" (r)
:
: "memory");
return r;
}
CK_CC_INLINE static void
ck_pr_rtm_end(void)
{
__asm__ __volatile__(".byte 0x0f,0x01,0xd5" ::: "memory");
return;
}
CK_CC_INLINE static void
ck_pr_rtm_abort(const unsigned int status)
{
__asm__ __volatile__(".byte 0xc6,0xf8,%P0" :: "i" (status) : "memory");
return;
}
CK_CC_INLINE static bool
ck_pr_rtm_test(void)
{
bool r;
__asm__ __volatile__(".byte 0x0f,0x01,0xd6;"
"setnz %0"
: "=r" (r)
:
: "memory");
return r;
}
#endif /* CK_PR_X86_64_RTM_H */
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