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/*
* 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(\_SB.PCI0.MEMORY_HOTPLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
Scope(\_SB.PCI0) {
Device(MEMORY_HOTPLUG_DEVICE) {
Name(_HID, "PNP0A06")
Name(_UID, "Memory hotplug resources")
/* Memory hotplug IO registers */
External(MEMORY_SLOT_ADDR_LOW, FieldUnitObj) // read only
External(MEMORY_SLOT_ADDR_HIGH, FieldUnitObj) // read only
External(MEMORY_SLOT_SIZE_LOW, FieldUnitObj) // read only
External(MEMORY_SLOT_SIZE_HIGH, FieldUnitObj) // read only
External(MEMORY_SLOT_EJECT, FieldUnitObj) // initiates device eject, write only
External(MEMORY_SLOT_SLECTOR, FieldUnitObj) // DIMM selector, write only
External(MEMORY_SLOT_LOCK, MutexObj)
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_EJECT_METHOD, 2) {
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
Store(1, MEMORY_SLOT_EJECT)
Release(MEMORY_SLOT_LOCK)
}
} // Device()
} // Scope()
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