1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
/* These come from the dynamically created CPU SSDT */
External(PDC0)
External(PDC1)
/* The APM port can be used for generating software SMIs */
OperationRegion (APMP, SystemIO, 0xb2, 2)
Field (APMP, ByteAcc, NoLock, Preserve)
{
APMC, 8, // APM command
APMS, 8 // APM status
}
/* Port 80 POST */
OperationRegion (POST, SystemIO, 0x80, 1)
Field (POST, ByteAcc, Lock, Preserve)
{
DBG0, 8
}
/* SMI I/O Trap */
Method(TRAP, 1, Serialized)
{
Store (Arg0, SMIF) // SMI Function
Store (0, TRP0) // Generate trap
Return (SMIF) // Return value of SMI handler
}
/* The _PIC method is called by the OS to choose between interrupt
* routing via the i8259 interrupt controller or the APIC.
*
* _PIC is called with a parameter of 0 for i8259 configuration and
* with a parameter of 1 for Local Apic/IOAPIC configuration.
*/
Method(_PIC, 1)
{
// Remember the OS' IRQ routing choice.
Store(Arg0, PICM)
}
/* The _PTS method (Prepare To Sleep) is called before the OS is
* entering a sleep state. The sleep state number is passed in Arg0
*/
Method(_PTS,1)
{
// Call a trap so SMI can prepare for Sleep as well.
// TRAP(0x55)
}
/* The _WAK method is called on system wakeup */
Method(_WAK,1)
{
// CPU specific part
// Notify PCI Express slots in case a card
// was inserted while a sleep state was active.
// Are we going to S3?
If (LEqual(Arg0, 3)) {
// ..
}
// Are we going to S4?
If (LEqual(Arg0, 4)) {
// ..
}
// TODO: Windows XP SP2 P-State restore
// TODO: Return Arg0 as second value if S-Arg0 was entered
// before.
Return(Package(){0,0})
}
// Power notification
External (\_PR_.CPU0, DeviceObj)
External (\_PR_.CPU1, DeviceObj)
Method (PNOT)
{
If (MPEN) {
If(And(PDC0, 0x08)) {
Notify (\_PR_.CPU0, 0x80) // _PPC
If (And(PDC0, 0x10)) {
Sleep(100)
Notify(\_PR_.CPU0, 0x81) // _CST
}
}
If(And(PDC1, 0x08)) {
Notify (\_PR_.CPU1, 0x80) // _PPC
If (And(PDC1, 0x10)) {
Sleep(100)
Notify(\_PR_.CPU1, 0x81) // _CST
}
}
} Else { // UP
Notify (\_PR_.CPU0, 0x80)
Sleep(0x64)
Notify(\_PR_.CPU0, 0x81)
}
// Notify the Batteries
Notify(BAT1, 0x80) // Execute BAT1 _BST
Notify(BAT2, 0x80) // Execute BAT2 _BST
}
/* System Bus */
Scope(\_SB)
{
/* This method is placed on the top level, so we can make sure it's the
* first executed _INI method.
*/
Method(_INI, 0)
{
/* The DTS data in NVS is probably not up to date.
* Update temperature values and make sure AP thermal
* interrupts can happen
*/
// TRAP(71) // TODO
/* Determine the Operating System and save the value in OSYS.
* We have to do this in order to be able to work around
* certain windows bugs.
*
* OSYS value | Operating System
* -----------+------------------
* 2000 | Windows 2000
* 2001 | Windows XP(+SP1)
* 2002 | Windows XP SP2
* 2006 | Windows Vista
* ???? | Windows 7
*/
/* Let's assume we're running at least Windows 2000 */
Store (2000, OSYS)
If (CondRefOf(_OSI, Local0)) {
/* Linux answers _OSI with "True" for a couple of
* Windows version queries. But unlike Windows it
* needs a Video repost, so let's determine whether
* we're running Linux.
*/
If (_OSI("Linux")) {
Store (1, LINX)
}
If (_OSI("Windows 2001")) {
Store (2001, OSYS)
}
If (_OSI("Windows 2001 SP1")) {
Store (2001, OSYS)
}
If (_OSI("Windows 2001 SP2")) {
Store (2002, OSYS)
}
If (_OSI("Windows 2006")) {
Store (2006, OSYS)
}
}
/* And the OS workarounds start right after we know what we're
* running: Windows XP SP1 needs to have C-State coordination
* enabled in SMM.
*/
If (LAnd(LEqual(OSYS, 2001), MPEN)) {
// TRAP(61) // TODO
}
/* SMM power state and C4-on-C3 settings need to be updated */
// TRAP(43) // TODO
}
}
|
