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Diffstat (limited to 'include/gcc/x86_64/ck_pr_rtm.h')
| -rw-r--r-- | include/gcc/x86_64/ck_pr_rtm.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/include/gcc/x86_64/ck_pr_rtm.h b/include/gcc/x86_64/ck_pr_rtm.h new file mode 100644 index 0000000..45c7b9d --- /dev/null +++ b/include/gcc/x86_64/ck_pr_rtm.h @@ -0,0 +1,109 @@ +/* + * 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 */ + |