Advanced Configuration and Power Interface Specification

Processor Configuration and Control
Device (SYSM) { // System level states
Name (_HID, "ACPI0010")
Name (_UID, 0)
Name (_LPI,
Package() {
0, // Version
0, // Level ID
1, // Count
)
Package () { // Power gating state for system
900, // Min residency (uS)
400, // Wake latency (uS)
0, // Enabled Parent State
... // (skipped fields). . .
ResourceTemplate () {
// Register Entry method
Register(FFH,0x20,0x00,0x00000000DECEA5ED,0x3)
},
... // (skipped fields). . .
}
Device (CLU0) { // Package0 state
Name (_HID, "ACPI0010")
Name (_UID, 1)
Name (_LPI,
Package() {
0, // Version
0, // Level ID
2, // Count
Package () { // Retention state for Cluster
40, // Min residency (uS)
20, // Wake latency (uS)
... // (skipped fields). . .
0, // System must be running
0, // Integer Entry method
... // (skipped fields). . .
},
Package () { // Power Gating state for Cluster
100, // Min residency (uS)
80, // Wake latency (uS)
... // (skipped fields). . .
1, // System may power down
0x1020000, // Integer Entry method
... // (skipped fields). . .
}
}
)
Name(PLPI,
Package() {
0, // Version
0, // Level ID
2, // Count
Package () { // Retention state for CPU
40, // Min residency (uS)
20, // Wake latency (uS)
... // (skipped fields). . .
1, // Parent node can be
// in retention or running
ResourceTemplate () {
Version 6.0 453