2 * This file is part of the coreboot project.
4 * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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)
22 External (\_PR.CP04, DeviceObj)
23 External (\_PR.CP05, DeviceObj)
24 External (\_PR.CP06, DeviceObj)
25 External (\_PR.CP07, DeviceObj)
27 /* Notify OS to re-read CPU tables, assuming ^2 CPU count */
30 If (LGreaterEqual (\PCNT, 2)) {
31 Notify (\_PR.CP00, 0x81) // _CST
32 Notify (\_PR.CP01, 0x81) // _CST
34 If (LGreaterEqual (\PCNT, 4)) {
35 Notify (\_PR.CP02, 0x81) // _CST
36 Notify (\_PR.CP03, 0x81) // _CST
38 If (LGreaterEqual (\PCNT, 8)) {
39 Notify (\_PR.CP04, 0x81) // _CST
40 Notify (\_PR.CP05, 0x81) // _CST
41 Notify (\_PR.CP06, 0x81) // _CST
42 Notify (\_PR.CP07, 0x81) // _CST
46 /* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */
49 If (LGreaterEqual (\PCNT, 2)) {
50 Notify (\_PR.CP00, 0x80) // _PPC
51 Notify (\_PR.CP01, 0x80) // _PPC
53 If (LGreaterEqual (\PCNT, 4)) {
54 Notify (\_PR.CP02, 0x80) // _PPC
55 Notify (\_PR.CP03, 0x80) // _PPC
57 If (LGreaterEqual (\PCNT, 8)) {
58 Notify (\_PR.CP04, 0x80) // _PPC
59 Notify (\_PR.CP05, 0x80) // _PPC
60 Notify (\_PR.CP06, 0x80) // _PPC
61 Notify (\_PR.CP07, 0x80) // _PPC
65 /* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */
68 If (LGreaterEqual (\PCNT, 2)) {
69 Notify (\_PR.CP00, 0x82) // _TPC
70 Notify (\_PR.CP01, 0x82) // _TPC
72 If (LGreaterEqual (\PCNT, 4)) {
73 Notify (\_PR.CP02, 0x82) // _TPC
74 Notify (\_PR.CP03, 0x82) // _TPC
76 If (LGreaterEqual (\PCNT, 8)) {
77 Notify (\_PR.CP04, 0x82) // _TPC
78 Notify (\_PR.CP05, 0x82) // _TPC
79 Notify (\_PR.CP06, 0x82) // _TPC
80 Notify (\_PR.CP07, 0x82) // _TPC
84 /* Return a package containing enabled processor entries */
87 If (LGreaterEqual (\PCNT, 8)) {
88 Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03,
89 \_PR.CP04, \_PR.CP05, \_PR.CP06, \_PR.CP07})
90 } ElseIf (LGreaterEqual (\PCNT, 4)) {
91 Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03})
92 } ElseIf (LGreaterEqual (\PCNT, 2)) {
93 Return (Package() {\_PR.CP00, \_PR.CP01})
95 Return (Package() {\_PR.CP00})