PCIe and Graphics

PCI Express Root Port 2

PCI Express Root Port 2 firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x2782
Records: 10
Parents: TCSS setup menu
Path: Setup / Chipset / System Agent (SA) Configuration / TCSS setup menu / PCI Express Root Port 2

Record 1804

PTM

Firmware Value

Enable/Disable Precision Time Measurement

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x673
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xc8
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`1`	Enabled	Standard defaultManufacturing default
`0`	Disabled

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Record 1805

LTR

Firmware Value

PCIE Latency Reporting Enable/Disable

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x674
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xcc
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

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Record 1806

Snoop Latency Override

Firmware Value

Snoop Latency Override for SA PCIE.

Firmware help text

Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x675
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd0
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}

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Record 1807

Snoop Latency Value

Firmware Value

LTR Snoop Latency value of SA PCIE

Form: PCI Express Root Port 2
Opcode: Numeric
Question ID: 0x676
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xda
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}
{"condition_id": 918, "type": "SuppressIf", "offset": 398599, "expr": ["EqIdVal QuestionId: 0x675, Value: 0x1", "Not"]}

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Record 1808

Snoop Latency Multiplier

Firmware Value

LTR Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x677
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd4
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}
{"condition_id": 918, "type": "SuppressIf", "offset": 398599, "expr": ["EqIdVal QuestionId: 0x675, Value: 0x1", "Not"]}

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Record 1809

Non Snoop Latency Override

Firmware Value

Non Snoop Latency Override for SA PCIE.

Firmware help text

Non Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x678
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe0
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}

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Record 1810

Non Snoop Latency Value

Firmware Value

LTR Non Snoop Latency value of PCH PCIE

Form: PCI Express Root Port 2
Opcode: Numeric
Question ID: 0x679
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xea
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}
{"condition_id": 919, "type": "SuppressIf", "offset": 398736, "expr": ["EqIdVal QuestionId: 0x678, Value: 0x1", "Not"]}

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Record 1811

Non Snoop Latency Multiplier

Firmware Value

LTR Non Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x67a
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe4
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}
{"condition_id": 919, "type": "SuppressIf", "offset": 398736, "expr": ["EqIdVal QuestionId: 0x678, Value: 0x1", "Not"]}

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Record 1812

Force LTR Override

Firmware Value

Force LTR Override for ITBT PCIE.

Firmware help text

Force LTR Override for ITBT PCIE. Disabled: LTR override values will not be forced. Enable: LTR override values will be forced and LTR messages from the device will be ignored.

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x67b
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf0
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled	Standard default
`1`	Enabled

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}

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Record 1813

LTR Lock

Firmware Value

PCIE LTR Configuration Lock

Form: PCI Express Root Port 2
Opcode: OneOf
Question ID: 0x67c
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf4
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled	Standard defaultManufacturing default
`1`	Enabled

Visibility / conditions

{"condition_id": 917, "type": "SuppressIf", "offset": 398558, "expr": ["EqIdVal QuestionId: 0x674, Value: 0x0"]}

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