| /* |
| * 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 */ |
| |