2 * This file is part of the coreboot project.
4 * Copyright (C) 2011 Google Inc.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; version 2 of
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
17 /* These devices are created at runtime */
18 External (\_PR.CP00, DeviceObj)
19 External (\_PR.CP01, DeviceObj)
20 External (\_PR.CP02, DeviceObj)
21 External (\_PR.CP03, DeviceObj)
23 /* Notify OS to re-read CPU tables, assuming ^2 CPU count */
26 If (LGreaterEqual (\PCNT, 2)) {
27 Notify (\_PR.CP00, 0x81) // _CST
28 Notify (\_PR.CP01, 0x81) // _CST
30 If (LGreaterEqual (\PCNT, 4)) {
31 Notify (\_PR.CP02, 0x81) // _CST
32 Notify (\_PR.CP03, 0x81) // _CST
36 /* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */
39 If (LGreaterEqual (\PCNT, 2)) {
40 Notify (\_PR.CP00, 0x80) // _PPC
41 Notify (\_PR.CP01, 0x80) // _PPC
43 If (LGreaterEqual (\PCNT, 4)) {
44 Notify (\_PR.CP02, 0x80) // _PPC
45 Notify (\_PR.CP03, 0x80) // _PPC
49 /* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */
52 If (LGreaterEqual (\PCNT, 2)) {
53 Notify (\_PR.CP00, 0x82) // _TPC
54 Notify (\_PR.CP01, 0x82) // _TPC
56 If (LGreaterEqual (\PCNT, 4)) {
57 Notify (\_PR.CP02, 0x82) // _TPC
58 Notify (\_PR.CP03, 0x82) // _TPC
62 /* Return a package containing enabled processor entries */
65 If (LGreaterEqual (\PCNT, 4)) {
66 Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03})
67 } ElseIf (LGreaterEqual (\PCNT, 2)) {
68 Return (Package() {\_PR.CP00, \_PR.CP01})
70 Return (Package() {\_PR.CP00})