diff options
Diffstat (limited to 'arch/x86/cpu/qemu/acpi/cpu-hotplug.asl')
-rw-r--r-- | arch/x86/cpu/qemu/acpi/cpu-hotplug.asl | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/arch/x86/cpu/qemu/acpi/cpu-hotplug.asl b/arch/x86/cpu/qemu/acpi/cpu-hotplug.asl deleted file mode 100644 index a290a4c457..0000000000 --- a/arch/x86/cpu/qemu/acpi/cpu-hotplug.asl +++ /dev/null @@ -1,80 +0,0 @@ -/* CPU hotplug */ - -Scope(\_SB) { - /* Objects filled in by run-time generated SSDT */ - External(NTFY, MethodObj) - External(CPON, PkgObj) - - /* Methods called by run-time generated SSDT Processor objects */ - Method(CPMA, 1, NotSerialized) { - /* - * _MAT method - create an madt apic buffer - * Arg0 = Processor ID = Local APIC ID - * Local0 = CPON flag for this cpu - */ - Store(DerefOf(Index(CPON, Arg0)), Local0) - /* Local1 = Buffer (in madt apic form) to return */ - Store(Buffer(8) {0x00, 0x08, 0x00, 0x00, 0x00, 0, 0, 0}, Local1) - /* Update the processor id, lapic id, and enable/disable status */ - Store(Arg0, Index(Local1, 2)) - Store(Arg0, Index(Local1, 3)) - Store(Local0, Index(Local1, 4)) - Return (Local1) - } - Method(CPST, 1, NotSerialized) { - /* - * _STA method - return ON status of cpu - * Arg0 = Processor ID = Local APIC ID - * Local0 = CPON flag for this cpu - */ - Store(DerefOf(Index(CPON, Arg0)), Local0) - If (Local0) { - Return (0xf) - } Else { - Return (0x0) - } - } - Method(CPEJ, 2, NotSerialized) { - /* _EJ0 method - eject callback */ - Sleep(200) - } - - /* CPU hotplug notify method */ - OperationRegion(PRST, SystemIO, 0xaf00, 32) - Field(PRST, ByteAcc, NoLock, Preserve) { - PRS, 256 - } - Method(PRSC, 0) { - /* Local5 = active cpu bitmap */ - Store(PRS, Local5) - /* Local2 = last read byte from bitmap */ - Store(Zero, Local2) - /* Local0 = Processor ID / APIC ID iterator */ - Store(Zero, Local0) - While (LLess(Local0, SizeOf(CPON))) { - /* Local1 = CPON flag for this cpu */ - Store(DerefOf(Index(CPON, Local0)), Local1) - If (And(Local0, 0x07)) { - /* Shift down previously read bitmap byte */ - ShiftRight(Local2, 1, Local2) - } Else { - /* Read next byte from cpu bitmap */ - Store(DerefOf(Index(Local5, ShiftRight(Local0, 3))), Local2) - } - /* Local3 = active state for this cpu */ - Store(And(Local2, 1), Local3) - - If (LNotEqual(Local1, Local3)) { - /* State change - update CPON with new state */ - Store(Local3, Index(CPON, Local0)) - /* Do CPU notify */ - If (LEqual(Local3, 1)) { - NTFY(Local0, 1) - } Else { - NTFY(Local0, 3) - } - } - Increment(Local0) - } - } -} |