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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Google Inc.
*
* 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 devices are created at runtime */
External (\_PR.CPU0, DeviceObj)
External (\_PR.CPU1, DeviceObj)
External (\_PR.CPU2, DeviceObj)
External (\_PR.CPU3, DeviceObj)
/* Notify OS to re-read CPU tables, assuming ^2 CPU count */
Method (PNOT)
{
If (LGreaterEqual (\PCNT, 2)) {
Notify (\_PR.CPU0, 0x81) // _CST
Notify (\_PR.CPU1, 0x81) // _CST
}
If (LGreaterEqual (\PCNT, 4)) {
Notify (\_PR.CPU2, 0x81) // _CST
Notify (\_PR.CPU3, 0x81) // _CST
}
}
/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */
Method (PPCN)
{
If (LGreaterEqual (\PCNT, 2)) {
Notify (\_PR.CPU0, 0x80) // _PPC
Notify (\_PR.CPU1, 0x80) // _PPC
}
If (LGreaterEqual (\PCNT, 4)) {
Notify (\_PR.CPU2, 0x80) // _PPC
Notify (\_PR.CPU3, 0x80) // _PPC
}
}
/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */
Method (TNOT)
{
If (LGreaterEqual (\PCNT, 2)) {
Notify (\_PR.CPU0, 0x82) // _TPC
Notify (\_PR.CPU1, 0x82) // _TPC
}
If (LGreaterEqual (\PCNT, 4)) {
Notify (\_PR.CPU2, 0x82) // _TPC
Notify (\_PR.CPU3, 0x82) // _TPC
}
}
/* Return a package containing enabled processor entries */
Method (PPKG)
{
If (LGreaterEqual (\PCNT, 4)) {
Return (Package() {\_PR.CPU0, \_PR.CPU1, \_PR.CPU2, \_PR.CPU3})
} ElseIf (LGreaterEqual (\PCNT, 2)) {
Return (Package() {\_PR.CPU0, \_PR.CPU1})
} Else {
Return (Package() {\_PR.CPU0})
}
}
|
