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/** @file
This file contains the Broxton PCI configuration space definition.
It defines various Broxton PCI Configuration Space registers
which will be used to dynamically produce all resources in the Host Bus.
@note This ASL file needs to be included as part of platform ACPI DSDT table.
Copyright (c) 1999 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
Device(VLVC)
{
Name(_ADR, 0x00000000) // Device 0, Function 0
// Define various MCH Controller PCI Configuration Space
// registers which will be used to dynamically produce all
// resources in the Host Bus _CRS.
OperationRegion(HBUS, PCI_Config, 0x00, 0xFF)
Field(HBUS, DWordAcc, NoLock, Preserve)
{
Offset(0x48), // MCHBAR (0:0:0:48)
MHEN, 1, // Enable
, 14,
MHBR, 24, // MCHBAR [38:15]
Offset(0xB0),
BDSM, 32, // Base of Data Stolen Memory
BGSM, 32, // Base of Graphics Stolen Memory
Offset(0xBC),
TOLD, 32, // Top of Low Useable DRAM
}
}
//
// BUS, I/O, and MMIO resources
//
Method(_CRS,0,Serialized) {
//
// Create pointers to PCI MMIO values
//
CreateDwordField(RES0, ^PM01._MIN, M1MN)
CreateDwordField(RES0, ^PM01._MAX, M1MX)
CreateDwordField(RES0, ^PM01._LEN, M1LN)
//
// Set Memory Size Values. TLUD represents bits 31:20 of phyical
// TOM, so shift these bits into the correct position and fix up
// the Memory Region available to PCI.
//
Store (M32L, M1LN)
Store (M32B, M1MN)
Subtract (Add (M1MN, M1LN), 1, M1MX)
//
// Create pointers to Base of Data Stolen Memory Values
//
CreateDwordField(RES0, ^DSM1._MIN, GSMN)
CreateDwordField(RES0, ^DSM1._MAX, GSMX)
CreateDwordField(RES0, ^DSM1._LEN, GSLN)
// Read C-Unit PCI CFG Reg. 0xB0 for BDSM
Store(^VLVC.BDSM, GSMN)
// Read C-Unit PCI CFG Reg. 0xBC for TOLUD
And(^VLVC.TOLD, 0xFFFFF000, GSMX)
Decrement(GSMX)
Add(Subtract(GSMX, GSMN), 1, GSLN)
//
// Create pointers to Base of Graphics Stolen Memory Values
//
CreateDwordField(RES0, ^GSM1._MIN, GDMN)
CreateDwordField(RES0, ^GSM1._MAX, GDMX)
CreateDwordField(RES0, ^GSM1._LEN, GDLN)
// Read C-Unit PCI CFG Reg. 0xB4 for BGSM
Store(^VLVC.BGSM, GDMN)
// Read C-Unit PCI CFG Reg. 0xBC for TOLUD
And(^VLVC.BDSM, 0xFFFFF000, GDMX)
Decrement(GDMX)
Add(Subtract(GDMX, GDMN), 1, GDLN)
Return(RES0)
}
Name( RES0,ResourceTemplate() {
WORDBusNumber ( // Bus number resource (0); the bridge produces bus numbers for its subsequent buses
ResourceProducer, // bit 0 of general flags is 1
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
PosDecode, // PosDecode
0x0000, // Granularity
0x0000, // Min
0x00FF, // Max
0x0000, // Translation
0x0100 // Range Length = Max-Min+1
)
IO (Decode16, 0x70, 0x77, 0x01, 0x08) //Consumed resource (0xCF8-0xCFF)
IO (Decode16, 0xCF8, 0xCF8, 0x01, 0x08) //Consumed resource (0xCF8-0xCFF)
WORDIO ( // Consumed-and-produced resource (all I/O below CF8)
ResourceProducer, // bit 0 of general flags is 0
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
PosDecode,
EntireRange,
0x0000, // Granularity
0x0000, // Min
0x006F, // Max
0x0000, // Translation
0x0070 // Range Length
)
WORDIO ( // Consumed-and-produced resource
ResourceProducer, // bit 0 of general flags is 0
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
PosDecode,
EntireRange,
0x0000, // Granularity
0x0078, // Min
0x0CF7, // Max
0x0000, // Translation
0x0C80 // Range Length
)
WORDIO ( // Consumed-and-produced resource (all I/O above CFF)
ResourceProducer, // bit 0 of general flags is 0
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
PosDecode,
EntireRange,
0x0000, // Granularity
0x0D00, // Min
0xFFFF, // Max
0x0000, // Translation
0xF300 // Range Length
)
DWORDMEMORY ( // Descriptor for legacy VGA video RAM
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
Cacheable,
ReadWrite,
0x00000000, // Granularity
0x000A0000, // Min
0x000BFFFF, // Max
0x00000000, // Translation
0x00020000 // Range Length
,,,
LGB1
)
DWORDMEMORY ( // Descriptor for legacy OptionRom
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
Cacheable,
ReadWrite,
0x00000000, // Granularity
0x000C0000, // Min
0x000DFFFF, // Max
0x00000000, // Translation
0x00020000 // Range Length
,,,
LGB2
)
DWORDMEMORY ( // Descriptor for BIOS Area
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
Cacheable,
ReadWrite,
0x00000000, // Granularity
0x000E0000, // Min
0x000FFFFF, // Max
0x00000000, // Translation
0x00020000 // Range Length
,,,
LGB3
)
DWORDMEMORY ( // Descriptor for Base of Data Stolen Memory
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
Cacheable,
ReadWrite,
0x00000000, // Granularity
0x3be00000, // Min
0x3FFFFFFF, // Max
0x00000000, // Translation
0x04200000 // Range Length
,,,
DSM1
)
DWORDMEMORY ( // Descriptor for Base of Graphics Stolen Memory
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
Cacheable,
ReadWrite,
0x00000000, // Granularity
0x3be00000, // Min
0x3FFFFFFF, // Max
0x00000000, // Translation
0x04200000 // Range Length
,,,
GSM1
)
DWORDMEMORY ( // Descriptor for PCI MMIO
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
NonCacheable,
ReadWrite,
0x00000000, // Granularity
0x80000000, // Min
0xBFFFFFFF, // Max
0x00000000, // Translation
0x40000000 // Range Length
,,,
PM01
)
DWORDMEMORY ( // Descriptor for PCI CFG Space
ResourceProducer, // bit 0 of general flags is 0
PosDecode,
MinFixed, // Range is fixed
MaxFixed, // Range is fixed
NonCacheable,
ReadWrite,
0x00000000, // Granularity
0xE0000000, // Min
0xEFFFFFFF, // Max
0x00000000, // Translation
0x10000000 // Range Length
,,,
PM02
)
})
Name(GUID,Buffer(){0x5b, 0x4d, 0xdb, 0x33,
0xf7, 0x1f,
0x1c, 0x40,
0x96, 0x57,
0x74, 0x41, 0xc0, 0x3d, 0xd7, 0x66})
Name(SUPP,0) // PCI _OSC Support Field value
Name(CTRL,0) // PCI _OSC Control Field value
Method(_OSC,4,Serialized)
{
//
// Check for proper UUID
// Save the capabilities buffer
//
Store(Arg3,Local0)
//
// Create DWord-adressable fields from the Capabilties Buffer
//
CreateDWordField(Local0,0,CDW1)
CreateDWordField(Local0,4,CDW2)
CreateDWordField(Local0,8,CDW3)
//
// Check for proper UUID
//
If (LAnd(LEqual(Arg0,GUID),NEXP)) {
// Save Capabilities DWord2 & 3
Store(CDW2,SUPP)
Store(CDW3,CTRL)
If (Not(And(CDW1,1))) {
// Query flag clear?
// Disable GPEs for features granted native control.
If (And(CTRL,0x01)) {
NHPG()
}
If (And(CTRL,0x04)) {
// PME control granted?
NPME()
}
}
If (LNotEqual(Arg1,One)) {
//
// Unknown revision
//
Or(CDW1,0x08,CDW1)
}
If (LNotEqual(CDW3,CTRL)) {
//
// Capabilities bits were masked
//
Or(CDW1,0x10,CDW1)
}
//
// Update DWORD3 in the buffer
//
Store(CTRL,CDW3)
Store(CTRL,OSCC)
Return(Local0)
} Else {
Or(CDW1,4,CDW1) // Unrecognized UUID
Return(Local0)
}
} // End _OSC
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