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--- old/usr/src/uts/intel/io/acpica/osl_ml.s
+++ new/usr/src/uts/intel/io/acpica/osl_ml.s
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
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16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 */
25 25
26 +/*
27 + * Copyright 2019 Joyent, Inc.
28 + */
29 +
26 30 #include <sys/asm_linkage.h>
27 31 #include <sys/asm_misc.h>
28 32
29 -#if defined(lint) || defined(__lint)
30 -#include <sys/types.h>
31 -#include "acpi.h"
32 -#endif /* lint */
33 -
34 33 /*
35 34 * Implementation as specific by ACPI 3.0 specification
36 35 * section 5.2.10.1
37 36 *
38 37 * Global Lock Structure within the FACS
39 38 *
40 39 * |-----------------------------------------------------------------------|
41 40 * | Field | Bit Length | Bit Offset | Description |
42 41 * |---------|------------|------------|-----------------------------------|
43 42 * | Pending | 1 | 0 | Non-zero indicates that a request |
44 43 * | | | | for ownership of the global lock |
45 44 * | | | | is pending. |
46 45 * |---------|------------|------------|-----------------------------------|
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47 46 * | Owned | 1 | 1 | Non-zero indicates that the Global|
48 47 * | | | | lock is owned. |
49 48 * |---------|------------|------------|-----------------------------------|
50 49 * | Reserved| 30 | 2 | Reserved for future use |
51 50 * |---------|------------|------------|-----------------------------------|
52 51 */
53 52
54 53 /* Offset of GlobalLock element in FACS structure */
55 54 #define GlobalLock 0x10
56 55
57 -#if defined(lint) || defined(__lint)
58 -
59 -/* ARGSUSED */
60 -UINT32
61 -__acpi_acquire_global_lock(void *Facs)
62 -{ return (0); }
63 -
64 -#else /* lint */
65 -
66 -#if defined(__amd64)
67 56 ENTRY(__acpi_acquire_global_lock)
68 57 movq $0xff, %rax / error return if FACS is null
69 58 orq %rdi, %rdi / %rdi contains pointer to FACS
70 59 jz 1f
71 60 leaq GlobalLock(%rdi), %rdi / make %rdi point at the lock
72 61 0:
73 62 movl (%rdi), %eax / get current value of Global Lock
74 63 movl %eax, %edx
75 64 andl $0xFFFFFFFE, %edx / Clear pending bit
76 65 btsl $1, %edx / Check and set owner bit
77 66 adcl $0, %edx / If owned, set pending bit
78 67 lock
79 68 cmpxchgl %edx, (%rdi) / Attempt to set new value
80 69 jnz 0b / If not set, try again
81 70 cmpb $3, %dl / Was it acquired or marked pending?
82 71 sbbq %rax, %rax / acquired = -1, pending = 0
83 72 1:
84 73 ret
85 74 SET_SIZE(__acpi_acquire_global_lock)
86 75
87 -#elif defined(__i386)
88 76
89 - ENTRY(__acpi_acquire_global_lock)
90 - movl $0xff, %eax / error return if FACS is null
91 - movl 4(%esp), %ecx / %ecx contains pointer to FACS
92 - orl %ecx, %ecx
93 - jz 1f
94 - leal GlobalLock(%ecx), %ecx / make %ecx point at the lock
95 -0:
96 - movl (%ecx), %eax
97 - movl %eax, %edx
98 - andl $0xFFFFFFFE, %edx
99 - btsl $1, %edx
100 - adcl $0, %edx
101 - lock
102 - cmpxchgl %edx, (%ecx)
103 - jnz 0b
104 - cmpb $3, %dl
105 - sbbl %eax, %eax
106 -1:
107 - ret
108 - SET_SIZE(__acpi_acquire_global_lock)
109 -
110 -#endif /* i386 */
111 -
112 -#endif /* lint */
113 -
114 -
115 -#if defined(lint) || defined(__lint)
116 -
117 -/* ARGSUSED */
118 -UINT32
119 -__acpi_release_global_lock(void *Facs)
120 -{ return (0); }
121 -
122 -#else /* lint */
123 -
124 -#if defined(__amd64)
125 77 ENTRY(__acpi_release_global_lock)
126 78 xorq %rax, %rax / error return if FACS is null
127 79 orq %rdi, %rdi / %rdi contains pointer to FACS
128 80 jz 1f
129 81 leaq GlobalLock(%rdi), %rdi / make %rdi point at the lock
130 82 0:
131 83 movl (%rdi), %eax
132 84 movl %eax, %edx
133 85 andl $0xFFFFFFFC, %edx
134 86 lock
135 87 cmpxchgl %edx, (%rdi)
136 88 jnz 0b
137 89 andq $1, %rax
138 90 1:
139 91 ret
140 92 SET_SIZE(__acpi_release_global_lock)
141 93
142 -#elif defined(__i386)
143 94
144 - ENTRY(__acpi_release_global_lock)
145 - xorl %eax, %eax / error return if FACS is null
146 - movl 4(%esp), %ecx / %ecx contains pointer to FACS
147 - orl %ecx, %ecx
148 - jz 1f
149 - leal GlobalLock(%ecx), %ecx / make %ecx point at the lock
150 -0:
151 - movl (%ecx), %eax
152 - movl %eax, %edx
153 - andl $0xFFFFFFFC, %edx
154 - lock
155 - cmpxchgl %edx, (%ecx)
156 - jnz 0b
157 - andl $1, %eax
158 -1:
159 - ret
160 - SET_SIZE(__acpi_release_global_lock)
161 -
162 -#endif /* i386 */
163 -
164 -#endif /* lint */
165 -
166 -
167 95 /*
168 96 * execute WBINVD instruction
169 97 */
170 98
171 -#if defined(lint) || defined(__lint)
172 -
173 -/* ARGSUSED */
174 -void
175 -__acpi_wbinvd(void)
176 -{ }
177 -
178 -#else /* lint */
179 -
180 99 ENTRY(__acpi_wbinvd)
181 100 wbinvd
182 101 ret
183 102 SET_SIZE(__acpi_wbinvd)
184 -
185 -#endif /* lint */
186 103
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