1*1fb62fb0SOlivier Houchard /*
2*1fb62fb0SOlivier Houchard * Copyright 2013-2015 Samy Al Bahra.
3*1fb62fb0SOlivier Houchard * All rights reserved.
4*1fb62fb0SOlivier Houchard *
5*1fb62fb0SOlivier Houchard * Redistribution and use in source and binary forms, with or without
6*1fb62fb0SOlivier Houchard * modification, are permitted provided that the following conditions
7*1fb62fb0SOlivier Houchard * are met:
8*1fb62fb0SOlivier Houchard * 1. Redistributions of source code must retain the above copyright
9*1fb62fb0SOlivier Houchard * notice, this list of conditions and the following disclaimer.
10*1fb62fb0SOlivier Houchard * 2. Redistributions in binary form must reproduce the above copyright
11*1fb62fb0SOlivier Houchard * notice, this list of conditions and the following disclaimer in the
12*1fb62fb0SOlivier Houchard * documentation and/or other materials provided with the distribution.
13*1fb62fb0SOlivier Houchard *
14*1fb62fb0SOlivier Houchard * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*1fb62fb0SOlivier Houchard * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*1fb62fb0SOlivier Houchard * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*1fb62fb0SOlivier Houchard * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*1fb62fb0SOlivier Houchard * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*1fb62fb0SOlivier Houchard * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*1fb62fb0SOlivier Houchard * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*1fb62fb0SOlivier Houchard * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*1fb62fb0SOlivier Houchard * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*1fb62fb0SOlivier Houchard * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*1fb62fb0SOlivier Houchard * SUCH DAMAGE.
25*1fb62fb0SOlivier Houchard */
26*1fb62fb0SOlivier Houchard
27*1fb62fb0SOlivier Houchard /*
28*1fb62fb0SOlivier Houchard * Copyright (c) 2012,2013 Intel Corporation
29*1fb62fb0SOlivier Houchard * Author: Andi Kleen
30*1fb62fb0SOlivier Houchard *
31*1fb62fb0SOlivier Houchard * Redistribution and use in source and binary forms, with or without
32*1fb62fb0SOlivier Houchard * modification, are permitted provided that: (1) source code distributions
33*1fb62fb0SOlivier Houchard * retain the above copyright notice and this paragraph in its entirety, (2)
34*1fb62fb0SOlivier Houchard * distributions including binary code include the above copyright notice and
35*1fb62fb0SOlivier Houchard * this paragraph in its entirety in the documentation or other materials
36*1fb62fb0SOlivier Houchard * provided with the distribution
37*1fb62fb0SOlivier Houchard *
38*1fb62fb0SOlivier Houchard * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
39*1fb62fb0SOlivier Houchard * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
40*1fb62fb0SOlivier Houchard * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
41*1fb62fb0SOlivier Houchard */
42*1fb62fb0SOlivier Houchard
43*1fb62fb0SOlivier Houchard #ifndef CK_PR_X86_64_RTM_H
44*1fb62fb0SOlivier Houchard #define CK_PR_X86_64_RTM_H
45*1fb62fb0SOlivier Houchard
46*1fb62fb0SOlivier Houchard #ifndef CK_PR_X86_64_H
47*1fb62fb0SOlivier Houchard #error Do not include this file directly, use ck_pr.h
48*1fb62fb0SOlivier Houchard #endif
49*1fb62fb0SOlivier Houchard
50*1fb62fb0SOlivier Houchard #define CK_F_PR_RTM
51*1fb62fb0SOlivier Houchard
52*1fb62fb0SOlivier Houchard #include <ck_cc.h>
53*1fb62fb0SOlivier Houchard #include <ck_stdbool.h>
54*1fb62fb0SOlivier Houchard
55*1fb62fb0SOlivier Houchard #define CK_PR_RTM_STARTED (~0U)
56*1fb62fb0SOlivier Houchard #define CK_PR_RTM_EXPLICIT (1 << 0)
57*1fb62fb0SOlivier Houchard #define CK_PR_RTM_RETRY (1 << 1)
58*1fb62fb0SOlivier Houchard #define CK_PR_RTM_CONFLICT (1 << 2)
59*1fb62fb0SOlivier Houchard #define CK_PR_RTM_CAPACITY (1 << 3)
60*1fb62fb0SOlivier Houchard #define CK_PR_RTM_DEBUG (1 << 4)
61*1fb62fb0SOlivier Houchard #define CK_PR_RTM_NESTED (1 << 5)
62*1fb62fb0SOlivier Houchard #define CK_PR_RTM_CODE(x) (((x) >> 24) & 0xFF)
63*1fb62fb0SOlivier Houchard
64*1fb62fb0SOlivier Houchard CK_CC_INLINE static unsigned int
ck_pr_rtm_begin(void)65*1fb62fb0SOlivier Houchard ck_pr_rtm_begin(void)
66*1fb62fb0SOlivier Houchard {
67*1fb62fb0SOlivier Houchard unsigned int r = CK_PR_RTM_STARTED;
68*1fb62fb0SOlivier Houchard
69*1fb62fb0SOlivier Houchard __asm__ __volatile__(".byte 0xc7,0xf8;"
70*1fb62fb0SOlivier Houchard ".long 0;"
71*1fb62fb0SOlivier Houchard : "+a" (r)
72*1fb62fb0SOlivier Houchard :
73*1fb62fb0SOlivier Houchard : "memory");
74*1fb62fb0SOlivier Houchard
75*1fb62fb0SOlivier Houchard return r;
76*1fb62fb0SOlivier Houchard }
77*1fb62fb0SOlivier Houchard
78*1fb62fb0SOlivier Houchard CK_CC_INLINE static void
ck_pr_rtm_end(void)79*1fb62fb0SOlivier Houchard ck_pr_rtm_end(void)
80*1fb62fb0SOlivier Houchard {
81*1fb62fb0SOlivier Houchard
82*1fb62fb0SOlivier Houchard __asm__ __volatile__(".byte 0x0f,0x01,0xd5" ::: "memory");
83*1fb62fb0SOlivier Houchard return;
84*1fb62fb0SOlivier Houchard }
85*1fb62fb0SOlivier Houchard
86*1fb62fb0SOlivier Houchard CK_CC_INLINE static void
ck_pr_rtm_abort(const unsigned int status)87*1fb62fb0SOlivier Houchard ck_pr_rtm_abort(const unsigned int status)
88*1fb62fb0SOlivier Houchard {
89*1fb62fb0SOlivier Houchard
90*1fb62fb0SOlivier Houchard __asm__ __volatile__(".byte 0xc6,0xf8,%P0" :: "i" (status) : "memory");
91*1fb62fb0SOlivier Houchard return;
92*1fb62fb0SOlivier Houchard }
93*1fb62fb0SOlivier Houchard
94*1fb62fb0SOlivier Houchard CK_CC_INLINE static bool
ck_pr_rtm_test(void)95*1fb62fb0SOlivier Houchard ck_pr_rtm_test(void)
96*1fb62fb0SOlivier Houchard {
97*1fb62fb0SOlivier Houchard bool r;
98*1fb62fb0SOlivier Houchard
99*1fb62fb0SOlivier Houchard __asm__ __volatile__(".byte 0x0f,0x01,0xd6;"
100*1fb62fb0SOlivier Houchard "setnz %0"
101*1fb62fb0SOlivier Houchard : "=r" (r)
102*1fb62fb0SOlivier Houchard :
103*1fb62fb0SOlivier Houchard : "memory");
104*1fb62fb0SOlivier Houchard
105*1fb62fb0SOlivier Houchard return r;
106*1fb62fb0SOlivier Houchard }
107*1fb62fb0SOlivier Houchard
108*1fb62fb0SOlivier Houchard #endif /* CK_PR_X86_64_RTM_H */
109*1fb62fb0SOlivier Houchard
110