| /* | |
| * 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; either version 2 of the License, or | |
| * (at your option) any later version. | |
| * 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, see <http://www.gnu.org/licenses/>. | |
| */ | |
| External(MEMORY_SLOT_NOTIFY_METHOD, MethodObj) | |
| Scope(\_SB.PCI0) { | |
| Device(MEMORY_HOTPLUG_DEVICE) { | |
| Name(_HID, "PNP0A06") | |
| Name(_UID, "Memory hotplug resources") | |
| External(MEMORY_SLOTS_NUMBER, IntObj) | |
| /* Memory hotplug IO registers */ | |
| OperationRegion(MEMORY_HOTPLUG_IO_REGION, SystemIO, | |
| ACPI_MEMORY_HOTPLUG_BASE, | |
| ACPI_MEMORY_HOTPLUG_IO_LEN) | |
| Name(_CRS, ResourceTemplate() { | |
| IO(Decode16, ACPI_MEMORY_HOTPLUG_BASE, ACPI_MEMORY_HOTPLUG_BASE, | |
| 0, ACPI_MEMORY_HOTPLUG_IO_LEN, IO) | |
| }) | |
| Method(_STA, 0) { | |
| If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) { | |
| Return(0x0) | |
| } | |
| /* present, functioning, decoding, not shown in UI */ | |
| Return(0xB) | |
| } | |
| Field(MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) { | |
| MEMORY_SLOT_ADDR_LOW, 32, // read only | |
| MEMORY_SLOT_ADDR_HIGH, 32, // read only | |
| MEMORY_SLOT_SIZE_LOW, 32, // read only | |
| MEMORY_SLOT_SIZE_HIGH, 32, // read only | |
| MEMORY_SLOT_PROXIMITY, 32, // read only | |
| } | |
| Field(MEMORY_HOTPLUG_IO_REGION, ByteAcc, NoLock, Preserve) { | |
| Offset(20), | |
| MEMORY_SLOT_ENABLED, 1, // 1 if enabled, read only | |
| MEMORY_SLOT_INSERT_EVENT, 1, // (read) 1 if has a insert event. (write) 1 to clear event | |
| } | |
| Mutex (MEMORY_SLOT_LOCK, 0) | |
| Field (MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) { | |
| MEMORY_SLOT_SLECTOR, 32, // DIMM selector, write only | |
| MEMORY_SLOT_OST_EVENT, 32, // _OST event code, write only | |
| MEMORY_SLOT_OST_STATUS, 32, // _OST status code, write only | |
| } | |
| Method(MEMORY_SLOT_SCAN_METHOD, 0) { | |
| If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) { | |
| Return(Zero) | |
| } | |
| Store(Zero, Local0) // Mem devs iterrator | |
| Acquire(MEMORY_SLOT_LOCK, 0xFFFF) | |
| while (LLess(Local0, MEMORY_SLOTS_NUMBER)) { | |
| Store(Local0, MEMORY_SLOT_SLECTOR) // select Local0 DIMM | |
| If (LEqual(MEMORY_SLOT_INSERT_EVENT, One)) { // Memory device needs check | |
| MEMORY_SLOT_NOTIFY_METHOD(Local0, 1) | |
| Store(1, MEMORY_SLOT_INSERT_EVENT) | |
| } | |
| // TODO: handle memory eject request | |
| Add(Local0, One, Local0) // goto next DIMM | |
| } | |
| Release(MEMORY_SLOT_LOCK) | |
| Return(One) | |
| } | |
| Method(MEMORY_SLOT_STATUS_METHOD, 1) { | |
| Store(Zero, Local0) | |
| Acquire(MEMORY_SLOT_LOCK, 0xFFFF) | |
| Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM | |
| If (LEqual(MEMORY_SLOT_ENABLED, One)) { | |
| Store(0xF, Local0) | |
| } | |
| Release(MEMORY_SLOT_LOCK) | |
| Return(Local0) | |
| } | |
| Method(MEMORY_SLOT_CRS_METHOD, 1, Serialized) { | |
| Acquire(MEMORY_SLOT_LOCK, 0xFFFF) | |
| Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM | |
| Name(MR64, ResourceTemplate() { | |
| QWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed, | |
| Cacheable, ReadWrite, | |
| 0x0000000000000000, // Address Space Granularity | |
| 0x0000000000000000, // Address Range Minimum | |
| 0xFFFFFFFFFFFFFFFE, // Address Range Maximum | |
| 0x0000000000000000, // Address Translation Offset | |
| 0xFFFFFFFFFFFFFFFF, // Address Length | |
| ,, MW64, AddressRangeMemory, TypeStatic) | |
| }) | |
| CreateDWordField(MR64, 14, MINL) | |
| CreateDWordField(MR64, 18, MINH) | |
| CreateDWordField(MR64, 38, LENL) | |
| CreateDWordField(MR64, 42, LENH) | |
| CreateDWordField(MR64, 22, MAXL) | |
| CreateDWordField(MR64, 26, MAXH) | |
| Store(MEMORY_SLOT_ADDR_HIGH, MINH) | |
| Store(MEMORY_SLOT_ADDR_LOW, MINL) | |
| Store(MEMORY_SLOT_SIZE_HIGH, LENH) | |
| Store(MEMORY_SLOT_SIZE_LOW, LENL) | |
| // 64-bit math: MAX = MIN + LEN - 1 | |
| Add(MINL, LENL, MAXL) | |
| Add(MINH, LENH, MAXH) | |
| If (LLess(MAXL, MINL)) { | |
| Add(MAXH, One, MAXH) | |
| } | |
| If (LLess(MAXL, One)) { | |
| Subtract(MAXH, One, MAXH) | |
| } | |
| Subtract(MAXL, One, MAXL) | |
| If (LEqual(MAXH, Zero)){ | |
| Name(MR32, ResourceTemplate() { | |
| DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed, | |
| Cacheable, ReadWrite, | |
| 0x00000000, // Address Space Granularity | |
| 0x00000000, // Address Range Minimum | |
| 0xFFFFFFFE, // Address Range Maximum | |
| 0x00000000, // Address Translation Offset | |
| 0xFFFFFFFF, // Address Length | |
| ,, MW32, AddressRangeMemory, TypeStatic) | |
| }) | |
| CreateDWordField(MR32, MW32._MIN, MIN) | |
| CreateDWordField(MR32, MW32._MAX, MAX) | |
| CreateDWordField(MR32, MW32._LEN, LEN) | |
| Store(MINL, MIN) | |
| Store(MAXL, MAX) | |
| Store(LENL, LEN) | |
| Release(MEMORY_SLOT_LOCK) | |
| Return(MR32) | |
| } | |
| Release(MEMORY_SLOT_LOCK) | |
| Return(MR64) | |
| } | |
| Method(MEMORY_SLOT_PROXIMITY_METHOD, 1) { | |
| Acquire(MEMORY_SLOT_LOCK, 0xFFFF) | |
| Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM | |
| Store(MEMORY_SLOT_PROXIMITY, Local0) | |
| Release(MEMORY_SLOT_LOCK) | |
| Return(Local0) | |
| } | |
| Method(MEMORY_SLOT_OST_METHOD, 4) { | |
| Acquire(MEMORY_SLOT_LOCK, 0xFFFF) | |
| Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM | |
| Store(Arg1, MEMORY_SLOT_OST_EVENT) | |
| Store(Arg2, MEMORY_SLOT_OST_STATUS) | |
| Release(MEMORY_SLOT_LOCK) | |
| } | |
| } // Device() | |
| } // Scope() |