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Datasheet, Volume 2

173

Processor Configuration Registers

2.10.39 LSTS—Link Status Register

This register indicates PCI Express link status.

B/D/F/Type:

0/6/0/PCI

Address Offset:

B2–B3h

Reset Value:

1001h

Access:

RW1C, RO-V, RO

Size:

16 bits

BIOS Optimal Default

Bit

Attr

Reset

Value

RST/

PWR

Description

RW1C

Uncore

Link Autonomous Bandwidth Status (LABWS)

This bit is set to 1b by hardware to indicate that hardware has

autonomously changed link speed or width, without the port

transitioning through DL_Down status, for reasons other than to

attempt to correct unreliable link operation.
This bit must be set if the Physical Layer reports a speed or width

change was initiated by the downstream component that was

indicated as an autonomous change.

RW1C

Uncore

Link Bandwidth Management Status (LBWMS)

This bit is set to 1b by hardware to indicate that either of the

following has occurred without the port transitioning through

DL_Down status:
A link retraining initiated by a write of 1b to the Retrain Link bit has

completed.

Note:

This bit is Set following any write of 1b to the Retrain Link

bit, including when the Link is in the process of retraining for some

other reason.
Hardware has autonomously changed link speed or width to

attempt to correct unreliable link operation, either through an

TXTSSM time-out or a higher level process.
This bit must be set if the Physical Layer reports a speed or width

change was initiated by the downstream component that was not

indicated as an autonomous change.

RO-V

Uncore

Data Link Layer Link Active (Optional) (DLLLA)

This bit indicates the status of the Data Link Control and

Management State Machine. It returns a 1b to indicate the

DL_Active state, 0b otherwise.
This bit must be implemented if the corresponding Data Link Layer

Active Capability bit is implemented. Otherwise, this bit must be

hardwired to 0b.

Uncore

Slot Clock Configuration (SCC)

0 = The device uses an independent clock irrespective of the

presence of a reference on the connector.

1 = The device uses the same physical reference clock that the

platform provides on the connector.

RO-V

Uncore

Link Training (TXTRN)

This bit indicates that the Physical Layer TXTSSM is in the

Configuration or Recovery state, or that 1b was written to the

Retrain Link bit but Link training has not yet begun. Hardware

clears this bit when the TXTSSM exits the Configuration/Recovery

state once Link training is complete.

Содержание 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - VOLUME 2 01-2011

Страница 1: ...Document Number 324642 001 2nd Generation Intel Core Processor Family Desktop Datasheet Volume 2 Supporting Intel Core i7 i5 and i3 Desktop Processor Series This is Volume 2 of 2 January 2011...

Страница 2: ...MLE The MLE could consist of a virtual machine monitor an OS or an application In addition Intel TXT requires the system to contain a TPM v1 2 as defined by the Trusted Computing Group and specific s...

Страница 3: ...mory Remapping 28 2 3 4 4 Hardware Remap Algorithm 28 2 3 4 5 Programming Model 28 2 3 5 PCI Express Configuration Address Space 32 2 3 6 PCI Express Graphics Attach PEG 33 2 3 7 Graphics Memory Addre...

Страница 4: ...CAPID0_A Capabilities A Register 80 2 6 PCI Device 1 Function 0 2 Configuration Space 82 2 6 1 VID1 Vendor Identification Register 84 2 6 2 DID1 Device Identification Register 84 2 6 3 PCICMD1 PCI Com...

Страница 5: ...ice 2 Configuration Space 128 2 8 1 VID2 Vendor Identification Register 129 2 8 2 DID2 Device Identification Register 129 2 8 3 PCICMD2 PCI Command Register 130 2 8 4 PCISTS2 PCI Status Register 131 2...

Страница 6: ...7 2 10 33 PEG_CAPL PCI Express G Capability List Register 167 2 10 34 PEG_CAP PCI Express G Capabilities Register 168 2 10 35 DCAP Device Capabilities Register 168 2 10 36 DCTL Device Control Register...

Страница 7: ...config Self Refresh Configuration Register 212 2 17 Memory Controller MMIO Registers Broadcast Group 213 2 17 1 PM_PDWN_Config Power down Configuration Register 213 2 17 2 PM_CMD_PWR Power Management...

Страница 8: ...pability Register 264 2 21 4 GCMD_REG Global Command Register 266 2 21 5 GSTS_REG Global Status Register 269 2 21 6 RTADDR_REG Root Entry Table Address Register 270 2 21 7 CCMD_REG Context Command Reg...

Страница 9: ...2 Extended Configuration Register Address Map 123 2 10 PCI Device 2 Configuration Register Address Map 128 2 11 Device 2 IO Register Address Map 140 2 12 PCI Device 6 Register Address Map 141 2 13 PC...

Страница 10: ...10 Datasheet Volume 2 Revision History Revision Number Description Revision Date 001 Initial release January 2011...

Страница 11: ...on the PCI Bus assigned for the processor socket This document describes these configuration space registers or device specific control and status registers CSRs only This document does NOT include M...

Страница 12: ...Introduction 12 Datasheet Volume 2...

Страница 13: ...le writing a 0 to a bit has no effect Hardware clears these bits RsvdP Reserved and Preserved These bits are reserved for future RW implementations and their value must not be modified by software Whe...

Страница 14: ...arate configuration bit or other logic Note Mutually exclusive with Once modifier WO O RW Once After reset these bits can only be written by software once after which they become Read Only Note Mutual...

Страница 15: ...iated Tilex Tiley linear reads writes to GMADR range are supported Write accesses to GMADR linear regions are supported from both DMI and PEG GMADR write accesses to tileX and tileY regions defined us...

Страница 16: ...r using I O semantics the IGD and internal graphics instruction port registers can be acces sed Note this allows accessing the same registers as GTTMMADR The IOBAR can be used to issue writes to the G...

Страница 17: ...SE GFX Stolen 0 256 MB ME UMA TOM GFX GTT Stolen BASE MESEG BASE 1 MB aligned 1 MB aligned OS invisible Reclaim 1 MB aligned for reclaim 1 MB aligned 4 GB FEC0_0000 1 MB aligned TOUUD BASE 1 MB aligne...

Страница 18: ...stem BIOS Area 960 KB 1 MB Memory System BIOS Area 2 3 1 1 DOS Range 0h 9_FFFFh The DOS area is 640 KB 0000_0000h 0009_FFFFh in size and is always mapped to the main memory controlled by the MCH Figur...

Страница 19: ...MI originated cycles to enable SMM space are not allowed and are considered to be to the Video Buffer Area if IGD is not enabled as the VGA device DMI initiated write cycles are attempted as peer writ...

Страница 20: ...nt to DRAM Graphics translated requests to this region are not allowed If such a mapping error occurs the request will be routed to C_0000h Writes will have the byte enables de asserted 2 3 2 Main Mem...

Страница 21: ...s 2 3 2 3 Protected Memory Range PMR programmable For robust and secure launch of the MVMM the MVMM code and private data needs to be loaded to a memory region protected from bus master accesses Suppo...

Страница 22: ...this protected range even if they passed the VTd translation The system will set up 0 to TSEG_BASE DPR size 1 for DMA traffic TSEG_BASE to TSEG_BASE DPR size as no DMA After some time software could...

Страница 23: ...exceptions are 1 Addresses decoded to the egress port registers PXPEPBAR 2 Addresses decoded to the memory mapped range for internal MCH registers MCHBAR 3 Addresses decoded to the registers associat...

Страница 24: ...ry Address Range DMI Interface subtractive decode FEF0_0000h 4 GB 2 MB MSI Interrupts FEE0_0000h PCI Express Configuration Space E000_0000h High BIOS FFE0_0000h FFFF_FFFFh 4 GB 4 GB 17 MB DMI Interfac...

Страница 25: ...entry W orkstation Server SKUs of the processor and would be disabled in typical Desktop systems When disabled any access within entire APIC Configuration space FEC0_0000h to FECF_FFFFh is forwarded...

Страница 26: ...of physical memory The ME stolen memory base is calculated by subtracting the amount of memory stolen by the Manageability Engine from TOM Top of Upper Usable DRAM TOUUD The Top of Upper Usable Dram...

Страница 27: ...s range located just below the Manageability Engine s stolen memory 2 3 4 2 Indirect Accesses to MCHBAR Registers This access is similar to prior chipsets MCHBAR registers can be indirectly accessed u...

Страница 28: ...35 20 THEN ADDRESS_OUT 38 20 ADDRESS_IN 38 20 REMAP_BASE 35 20 0000000b and TOLUD 31 20 ADDRESS_OUT 19 0 ADDRESS_IN 19 0 2 3 4 5 Programming Model The memory boundaries of interest are Bottom of Logi...

Страница 29: ...GB minus 1 MB REMAPBASE 7F_FFFF_0000h default REMAPLIMIT 00_0000_0000h 0 GB boundary default Figure 2 5 Case 1 Less than 4 GB of Physical Memory no remap OS VISIBLE 4 GB GFX Stolen ME UMA Wasted Only...

Страница 30: ...C000_000h 3 GB REMAPBASE 01_4000_0000h 5 GB REMAPLIMIT 01_7FF0_0000h 6 GB 1 Figure 2 6 Case 2 Greater than 4 GB of Physical Memory Main Memory Add Range OS VISIBLE 4 GB PCI Memory Add Range subtractiv...

Страница 31: ...n size Addresses of MMIO region must not overlap with any part of the Logical Address Memory Remap range When TOM is equal to TOLUD remap is not needed and must be disabled by programming REMAPBASE to...

Страница 32: ...other decodes have taken place Unmapped addresses between TOLUD and 4 GB Accesses that do not hit DRAM or PCI space are subtractive decoded to DMI Because the TOLUD register is used to mark the upper...

Страница 33: ...Memory_Base_Address Address Memory_Limit_Address Prefetchable_Memory_Base_Address Address Prefetchable_Memory_Limit_Address The window size is programmed by the plug and play configuration software Th...

Страница 34: ...an be accessed using this IOBAR The IOBAR is composed of an index register and a data register MMIO_Index MMIO_INDEX is a 32 bit register A 32 bit all bytes enabled I O write to this port loads the of...

Страница 35: ...able SMM DRAM space the request will be remapped to address 000C_0000h with de asserted byte enables PCI Express and DMI Interface read accesses to the GMADR range are not supported therefore will hav...

Страница 36: ...cycles should never occur If one does occur the transaction will complete with an UR completion status Similar to FSB processors I O reads that lie within 8 byte boundaries but cross 4 byte boundaries...

Страница 37: ...ted cycles are not snooped The processor accepts accesses from DMI Interface to the following address ranges All snoop memory read and write accesses to Main DRAM including PAM region except stolen me...

Страница 38: ...re routed in a peer fashion VCp Optionally enabled Supports priority snoop traffic only This VC is given higher priority atthe snoop VC arbiter Routed as an independentvirtual channel and treated inde...

Страница 39: ...hrough VTd remap tables The remapbase remaplimit registers to not apply to VCm transactions Figure 2 7 Example DMI Upstream VC0 Memory Map A0000 BFFFF VGA GMADR FEE0_0000 FEEF_FFFF MSI TSEG_BASE mem w...

Страница 40: ...es Sent to DRAM address 000C_0000h non snooped with byte enables all disabled Peer writes from PEG to DMI are not supported If PEG bus master enable is not set all reads and writes are treated as unsu...

Страница 41: ...terface depends on the Legacy VGA configurations bits VGA Enable and MDAP For the remainder of this section PCI Express can refer to either the device 1 port functions or the device 6 port VGA range a...

Страница 42: ...N bit 4 Internal Graphics VGA in Device 0 function 0 is enabled through register GGC bit 1 IGD I O accesses PCICMD2 04 05h IOAE bit 0 in Device 2 are enabled VGA I O decodes for IGD uses 16 address bi...

Страница 43: ...dress and memory address ranges defined by the previously defined base and limit registers Forwarding of these accesses is also independent of the settings of the ISA Enable settings if this bit is 1...

Страница 44: ...O locations listed above or their aliases will be forwarded to the DMI Interface even if the reference includes I O locations not listed above For I O reads which are split into multiple DWord access...

Страница 45: ...ts These bits are labeled Reserved Software must deal correctly with fields that are reserved On reads software must use appropriate masks to extract the defined bits and not rely on reserved bits bei...

Страница 46: ...PCISTS PCI Status 0090h RO RW1C 8h RID Revision Identification 00h RO FW 9 Bh CC Class Code 060000h RO C Dh RSVD Reserved 0h RO Eh HDR Header Type 00h RO F 2Bh RSVD Reserved 0h RO 2C 2Dh SVID Subsyst...

Страница 47: ...ress Register 00000000000 00000h RW KL RW L A0 A7h TOM Top of Memory 0000007FFFF 00000h RW KL RW L A8 AFh TOUUD Top of Upper Usable DRAM 00000000000 00000h RW KL RW L B0 B3h BDSM Base Data of Stolen M...

Страница 48: ...Description 15 0 RO 8086h Uncore Vendor Identification Number VID PCI standard identification for Intel B D F Type 0 0 0 PCI Address Offset 2 3h Reset Value 0100h Access RO FW RO V Size 16 bits Bit At...

Страница 49: ...ERR message is not generated by the Host for Device 0 This bit only controls SERR messaging for Device 0 Other integrated devices have their own SERRE bits to control error reporting for error conditi...

Страница 50: ...I Address Offset 6 7h Reset Value 0090h Access RO RW1C Size 16 bits BIOS Optimal Default 00h Bit Attr Reset Value RST PWR Description 15 RW1C 0b Uncore Detected Parity Error DPE This bit is set when t...

Страница 51: ...physically connect to PCI_A This bit is set to 1 indicating fast back to back capability so that the optimum setting for PCI_A is not limited by the Host 6 6 RO 0h Reserved 5 RO 0b Uncore 66 MHz Capab...

Страница 52: ...ins the revision number of the processor The SRID is a 8 bit hardwired value assigned by Intel based on product stepping The SRID is not a directly addressable PCI register The SRID value is reflected...

Страница 53: ...Bridge device This code has the value 06h indicating a Bridge device 15 8 RO 00h Uncore Sub Class Code SUBCC This is an 8 bit value that indicates the category of Bridge into which the Host Bridge dev...

Страница 54: ...RW O Size 16 bits Bit Attr Reset Value RST PWR Description 15 0 RW O 0000h Uncore Subsystem Vendor ID SUBVID This field should be programmed during boot up to indicate the vendor of the system board...

Страница 55: ...0000000h Bit Attr Reset Value RST PWR Description 63 39 RO 0h Reserved 38 12 RW 0000000h Uncore PCI Express Egress Port MMIO Base Address PXPEPBAR This field corresponds to bits 38 12 of the base addr...

Страница 56: ...dress Offset 48 4Fh Reset Value 0000000000000000h Access RW Size 64 bits BIOS Optimal Default 0000000000h Bit Attr Reset Value RST PWR Description 63 39 RO 0h Reserved 38 15 RW 000000h Uncore Host Mem...

Страница 57: ...engines are in iGFX Mode Device 2 Class Code is 030000h 13 10 RO 0h Reserved 9 8 RW L 0h Uncore GTT Graphics Memory Size GGMS This field is used to select the amount of Main Memory that is pre allocat...

Страница 58: ...352 MB Ch 384 MB Dh 416 MB Eh 448MB Fh 480 MB 10h 512 MB Other Reserved 2 RO 0h Reserved 1 RW L 0b Uncore IGD VGA Disable IVD 0 Enable Device 2 IGD claims VGA memory and I O cycles the Sub Class Code...

Страница 59: ...served 6 5 RO 0h Reserved 4 RW L 1b Uncore Internal Graphics Engine D2EN 0 Disabled Bus 0 Device 2 is disabled and hidden 1 Enabled Bus 0 Device 2 is enabled and visible This bit will be set to 0b and...

Страница 60: ...reserved for MCHBAR is outside of PCIEXBAR space On reset this register is disabled and must be enabled by writing a 1 to theenable field in this register This base address shall be assigned on a boun...

Страница 61: ...e configuration space and the PCI Express extended configuration space 27 RW V 0b Uncore 128MB Base Address Mask ADMSK128 This bit is either part of the PCI Express Base Address RW or part of the Addr...

Страница 62: ...dress Offset 68 6Fh Reset Value 0000000000000000h Access RW Size 64 bits BIOS Optimal Default 000000000h Bit Attr Reset Value RST PWR Description 63 39 RO 0h Reserved 38 12 RW 0000000h Uncore DMI Base...

Страница 63: ...rected to DMI WE Write Enable When WE 1 the host write accesses to the corresponding memory segment are claimed by the Uncore and directed to main memory Conversely when WE 0 the host read accesses ar...

Страница 64: ...E attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 81...

Страница 65: ...WE attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 8...

Страница 66: ...E attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 83...

Страница 67: ...E attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 84...

Страница 68: ...WE attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 8...

Страница 69: ...WE attributes permit a memory segment to be Read Only Write Only Read Write or Disabled For example if a memory segment has RE 1 and WE 0 the segment is Read Only B D F Type 0 0 0 PCI Address Offset 8...

Страница 70: ...backbone If the VGA enable bit is set and MDA is not present then accesses to I O address range x3BCh x3BFh are forwarded to PCI Express through Device 6 Function 0 if the address is within the corres...

Страница 71: ...I O 3B4h 3B5h 3B8h 3B9h 3BAh 3BFh including ISA address aliases A 15 10 are not used in decode Any I O reference that includes the I O locations listed above or their aliases will remain on the backbo...

Страница 72: ...I O 3B4h 3B5h 3B8h 3B9h 3BAh 3BFh including ISA address aliases A 15 10 are not used in decode Any I O reference that includes the I O locations listed above or their aliases will remain on the backbo...

Страница 73: ...I O 3B4h 3B5h 3B8h 3B9h 3BAh 3BFh including ISA address aliases A 15 10 are not used in decode Any I O reference that includes the I O locations listed above or their aliases will remain on the backbo...

Страница 74: ...window is disabled These bits are Intel TXT lockable 19 1 RO 0h Reserved 0 RW KL 0b Uncore Lock LOCK This bit will lock all writeable settings in this register including itself B D F Type 0 0 0 PCI Ad...

Страница 75: ...ST PWR Description 63 39 RO 0h Reserved 38 20 RW L 7FFFFh Uncore Top of Memory TOM This register reflects the total amount of populated physical memory This is NOT necessarily the highest main memory...

Страница 76: ...Value 0000000000000000h Access RW KL RW L Size 64 bits BIOS Optimal Default 00000000000h Bit Attr Reset Value RST PWR Description 63 39 RO 0h Reserved 38 20 RW L 00000h Uncore TOUUD TOUUD This registe...

Страница 77: ...RW L 000h Uncore Graphics Base of Stolen Memory BDSM This register contains bits 31 20 of the base address of stolen DRAM memory BIOS determines the base of graphics stolen memory by subtracting the...

Страница 78: ...tolen Memory Size set to 2 MB BIOS knows the OS requires 1G of PCI space BIOS also knows the range from 0_FEC0_0000h to 0_FFFF_FFFFh is not usable by the system This 20 MB range at the very top of add...

Страница 79: ...ory plus one byte or the minimum address allocated for PCI memory Address bits 19 0 are assumed to be 0_0000h for the purposes of address comparison The Host interface positively decodes an address to...

Страница 80: ...eserved 24 RO FW 0b Reserved 23 RO KFW 0b Uncore VTd Disable VTDD 0 Enable VTd 1 Disable VTd 22 RO FW 0b Reserved 21 RO FW 0b Reserved 20 19 RO FW 00b Reserved 18 RO FW 0b Reserved 17 RO FW 0b Reserve...

Страница 81: ...ield 6 4 of the Clocking Configuration registers MCHBAR Offset C00h Any attempt to write an unsupported value will be ignored 000 MC capable of All memory frequencies 101 MC capable of up to DDR3 1600...

Страница 82: ...h RSVD Reserved 0h RO 1Ch IOBASE1 I O Base Address F0h RW 1Dh IOLIMIT1 I O Limit Address 00h RW 1E 1Fh SSTS1 Secondary Status 0000h RW1C RO 20 21h MBASE1 Memory Base Address FFF0h RW 22 23h MLIMIT1 Me...

Страница 83: ...AC AFh RSVD Reserved 0h RO B0 B1h LCTL Link Control 0000h RW RO RW V B2 B3h LSTS Link Status 1001h RO V RW1C RO B4 B7h SLOTCAP Slot Capabilities 00040000h RW O RO B8 B9h SLOTCTL Slot Control 0000h RO...

Страница 84: ...evice B D F Type 0 1 0 2 PCI Address Offset 0 1h Reset Value 8086h Access RO Size 16 bits Bit Attr Reset Value RST PWR Description 15 0 RO 8086h Uncore Vendor Identification VID PCI standard identific...

Страница 85: ...her through this bit or through the PCI Express specific bits in the Device Control Register In addition for Type 1 configuration space header devices this bit when set enables transmission by the pri...

Страница 86: ...nsupported Request status or Master abort in its completion packet 1 This device is allowed to issue requests to its primary bus Completions for previously issued memory read requests on the primary b...

Страница 87: ...affect this field 13 RO 0b Uncore Received Master Abort Status RMAS This bit is Set when a Requester receives a Completion with Unsupported Request Completion Status On a Function with a Type 1 Config...

Страница 88: ...7 RO 0b Uncore Fast Back to Back FB2B Not Applicable or Implemented Hardwired to 0 6 6 RO 0h Reserved 5 RO 0b Uncore 66 60 MHz capability CAP66 Not Applicable or Implemented Hardwired to 0 4 RO 1b Un...

Страница 89: ...cation Update for the value of the RID register 3 0 RO FW 0h Uncore Revision Identification Number RID This is an 8 bit value that indicates the revision identification number for the root port Refer...

Страница 90: ...ut has no impact on any PCI Express device functionality B D F Type 0 1 0 2 PCI Address Offset Eh Reset Value 81h Access RO Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RO 81h Uncore Heade...

Страница 91: ...ing of configuration cycles to PCI Express G B D F Type 0 1 0 2 PCI Address Offset 19h Reset Value 00h Access RW Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RW 00h Uncore Secondary Bus Nu...

Страница 92: ...ss decode address bits A 11 0 are assumed to be FFFh Thus the top of the defined I O address range will be at the top of a 4 KB aligned address block B D F Type 0 1 0 2 PCI Address Offset 1Ch Reset Va...

Страница 93: ...nitiated by the Type 1 Header Device itself receives a Completion with Unsupported Request Completion Status 12 RW1C 0b Uncore Received Target Abort RTA This bit is set when the Secondary Side for Typ...

Страница 94: ...s register are read only and return zeroes when read This register must be initialized by the configuration software For the purpose of address decode address bits A 19 0 are assumed to be 0 Thus the...

Страница 95: ...uctures of the graphics controller will reside and PMBASE and PMLIMIT are used to map prefetchable address ranges typically graphics local memory This segregation allows application of USWC space attr...

Страница 96: ...A 39 32 of the 40 bit address This register must be initialized by the configuration software For the purpose of address decode address bits A 19 0 are assumed to be 0 Thus the bottom of the defined m...

Страница 97: ...de address bits A 19 0 are assumed to be FFFFFh Thus the top of the defined memory address range will be at the top of a 1 MB aligned memory block Note Prefetchable memory range is supported to allow...

Страница 98: ...following formula PREFETCHABLE_MEMORY_BASE address PREFETCHABLE_MEMORY_LIMIT The upper 12 bits of this register are read write and correspond to address bits A 31 20 of the 39 bit address The lower 7...

Страница 99: ...2 PCI Address Offset 34h Reset Value 88h Access RO Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RO 88h Uncore First Capability CAPPTR1 The first capability in the list is the Subsystem ID...

Страница 100: ...ts interrupt pin The Interrupt Pin register tells which interrupt pin the device or device function uses 1h Corresponds to INTA Default 2h Corresponds to INTB 3h Corresponds to INTC 4h Corresponds to...

Страница 101: ...s the response by the root port to an I O access issued by the processor that target ISA I O addresses This applies only to I O addresses that are enabled by the IOBASE and IOLIMIT registers 0 All add...

Страница 102: ...Current AUXC Hardwired to 0 to indicate that there are no 3 3Vaux auxiliary current requirements 21 RO 0b Uncore Device Specific Initialization DSI Hardwired to 0 to indicate that special initializat...

Страница 103: ...t this device does not generate PME assertion from any D state 0 PME generation not possible from any D State 1 PME generation enabled from any D State The setting of this bit has no effect on hardwar...

Страница 104: ...vice also cannot generate interrupts or respond to MMR cycles in the D3 state The device must return to the D0 state in order to be fully functional When the Power State is other than D0 the bridge wi...

Страница 105: ...om the PCI PM capability to the PCI Express capability B D F Type 0 1 0 2 PCI Address Offset 8C 8Fh Reset Value 00008086h Access RW O Size 32 bits Bit Attr Reset Value RST PWR Description 31 16 RW O 0...

Страница 106: ...nerating a 64 bit memory address This may need to change in future implementations when addressable system memory exceeds the 32b 4GB limit 6 4 RW 000b Uncore Multiple Message Enable MME System softwa...

Страница 107: ...ccess RW Size 16 bits Bit Attr Reset Value RST PWR Description 15 0 RW 0000h Uncore Message Data MD Base message data pattern assigned by system software and used to handle an MSI from the device When...

Страница 108: ...a slot connection is not implemented 7 4 RO 4h Uncore Device Port Type DPT Hardwired to 4h to indicate root port of PCI Express Root Complex 3 0 RO 2h Uncore PCI Express Capability Version PCIECV Hard...

Страница 109: ...e Relaxed Ordering ROE 3 RW 0b Uncore Unsupported Request Reporting Enable URRE When set allows signaling ERR_NONFATAL ERR_FATAL or ERR_CORR to the Root Control register when detecting an unmasked Uns...

Страница 110: ...the Fatal Error Detected bit is set according to the setting of the Unsupported Request Error Severity bit In production systems setting the Fatal Error Detected bit is not an option as support for AE...

Страница 111: ...en Set this bit disables hardware from changing the Link width for reasons other than attempting to correct unreliable Link operation by reducing Link width Devices that do not implement the ability a...

Страница 112: ...urns 0 when read This bit is cleared automatically no need to write a 0 4 RW 0b Uncore Link Disable LD 0 Normal operation 1 Link is disabled Forces the TXTSSM to transition to the Disabled state using...

Страница 113: ...when the Link is in the process of retraining for some other reason Hardware has autonomously changed link speed or width to attempt to correct unreliable link operation either through an TXTSSM time...

Страница 114: ...W1C RO Size 16 bits BIOS Optimal Default 0h Bit Attr Reset Value RST PWR Description B D F Type 0 1 0 2 PCI Address Offset B4 B7h Reset Value 00040000h Access RW O RO Size 32 bits Bit Attr Reset Value...

Страница 115: ...on This is a form factor specific capability This bit is an indication to the operating system to allow for such removal without impacting continued software operation 4 RO 0b Uncore Reserved for Powe...

Страница 116: ...t per the defined encodings Reads of this field must reflect the value from the latest write even if the corresponding hotplug command is not complete unless software issues a write without waiting fo...

Страница 117: ...eted notification is supported as indicated by No Command Completed Support field of Slot Capabilities Register when set to 1b this bit enables software notification when a hot plug command is complet...

Страница 118: ...ence detect mechanism and if present any out of band presence detect mechanism defined for the slot s corresponding form factor Note that the in band presence detect mechanism requires that power be a...

Страница 119: ...ower fault detection is implemented this bit is set when the Power Controller detects a power fault at this slot Note that depending on hardware capability it is possible that a power fault can be det...

Страница 120: ...SERR should be generated if a fatal error is reported by any of the devices in the hierarchy associated with this Root Port or by the Root Port itself 1 0 RO 0h Reserved B D F Type 0 1 0 2 PCI Address...

Страница 121: ...must be monotonic with a non zero slope The value of n must be greater than 3 and less than 7 At least two of these must be below the normal operating range n 200 400 mV for full swing and 100 200 mV...

Страница 122: ...d included in the Supported Link Speeds field the result is undefined The Reset Value of this field is the highest link speed supported by the component as reported in the Supported Link Speeds field...

Страница 123: ...C0RCAP VC0 Resource Capability 00000001h RO 114 117h VC0RCTL VC0 Resource Control 800000FFh RO RW 118 119h RSVD Reserved 0h RO 11A 11Bh VC0RSTS VC0 Resource Status 0002h RO V 11C 207h RSVD Reserved 20...

Страница 124: ...cture A value of 0 indicates that the table is not present due to fixed VC priority 23 8 RO 0h Reserved 7 0 RO 00h Uncore Reserved for VC Arbitration Capability VCAC B D F Type 0 1 0 2 MMR Address Off...

Страница 125: ...rt Arbitration Supported by the VC resource This field is valid for all Switch Ports Root Ports that support peer to peer traffic and RCRBs but not for PCI Express Endpoint devices or Root Ports that...

Страница 126: ...press Endpoint devices or Root Ports that do not support peer to peer traffic The permissible value of this field is a number corresponding to one of the asserted bits in the Port Arbitration Capabili...

Страница 127: ...ation It is set by default on Reset as well as whenever the corresponding Virtual Channel is Disabled or the Link is in the DL_Down state It is cleared when the link successfully exits the FC_INIT2 st...

Страница 128: ...CLS Cache Line Size 00h RO Dh MTXT2 Master Latency Timer 00h RO Eh HDR2 Header Type 00h RO Fh RSVD Reserved 0h RO 10 17h GTTMMADR Graphics Translation Table Memory Mapped Range Address 000000000 00000...

Страница 129: ...ion Number VID PCI standard identification for Intel B D F Type 0 2 0 PCI Address Offset 2 3h Reset Value 0102h Access RO V RO FW Size 16 bits Bit Attr Reset Value RST PWR Description 15 4 RO FW 010h...

Страница 130: ...re Address Data Stepping Enable ADSTEP Not Implemented Hardwired to 0 6 RO 0b Uncore Parity Error Enable PERRE Not Implemented Hardwired to 0 Since the IGD belongs to the category of devices that does...

Страница 131: ...Uncore Signaled Target Abort Status STAS Hardwired to 0 The IGD does not use target abort semantics 10 9 RO 00b Uncore DEVSEL Timing DEVT Not applicable These bits are hardwired to 00 8 RO 0b Uncore...

Страница 132: ...gister 3 0 RO FW 0h Uncore Revision Identification Number RID Four LSB of RID Refer to the 2nd Generation Intel Core Processor Family Desktop Specification Update for the value of the RID register B D...

Страница 133: ...r does not use the Memory Write and Invalidate command and in general does not perform operations based on cache line size B D F Type 0 2 0 PCI Address Offset Dh Reset Value 00h Access RO Size 8 bits...

Страница 134: ...egion in order to invalidate any cached translations within the various TLBs implemented on chip The allocation is for 4 MB and the base address is defined by bits 38 22 B D F Type 0 2 0 PCI Address O...

Страница 135: ...o address signals 38 29 28 RW L 0b FLR Uncore 512 MB Address Mask ADMSK512 This Bit is either part of the Memory Base Address RW or part of the Address Mask RO depending on the value of MSAC 2 1 See M...

Страница 136: ...8 13 SVID2 Subsystem Vendor Identification Register This register is used to uniquely identify the subsystem where the PCI device resides B D F Type 0 2 0 PCI Address Offset 20 23h Reset Value 000000...

Страница 137: ...ication SUBID This value is used to identify a particular subsystem This field should be programmed by BIOS during boot up Once written this register becomes Read Only This register can only be cleare...

Страница 138: ...tings of Latency Timers B D F Type 0 2 0 PCI Address Offset 3Eh Reset Value 00h Access RO Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RO 00h Uncore Minimum Grant Value MGV The IGD does no...

Страница 139: ...Size 8 bits BIOS Optimal Default 0h Bit Attr Reset Value RST PWR Description 7 3 RO 0h Reserved 2 RW K 0b Uncore Untrusted Aperture Size High LHSASH This field is used in conjunction with LHSASL The d...

Страница 140: ...EX register Table 2 11 Device 2 IO Register Address Map Address Offset Register Symbol Register Name Reset Value Access 0 3h Index MMIO Address Register 00000000h RW 4 7h Data MMIO Data Register 00000...

Страница 141: ...I O Base Address F0h RW 1Dh IOLIMIT6 I O Limit Address 00h RW 1E 1Fh SSTS6 Secondary Status 0000h RW1C RO 20 21h MBASE6 Memory Base Address FFF0h RW 22 23h MLIMIT6 Memory Limit Address 0000h RW 24 25...

Страница 142: ...ilities 00008000h RO RW O A8 A9h DCTL Device Control 0000h RO RW AA ABh DSTS Device Status 0000h RO RW1C AC AFh RSVD Reserved 0h RO B0 B1h LCTL Link Control 0000h RO RW RW V B2 B3h LSTS Link Status 10...

Страница 143: ...fies any PCI device B D F Type 0 6 0 PCI Address Offset 0 1h Reset Value 8086h Access RO Size 16 bits Bit Attr Reset Value RST PWR Description 15 0 RO 8086h Uncore Vendor Identification VID PCI standa...

Страница 144: ...either through this bit or through the PCI Express specific bits in the Device Control register In addition for Type 1 configuration space header devices this bit when set enables transmission by the...

Страница 145: ...return Unsupported Request status or Master abort in its completion packet 1 This device is allowed to issue requests to its primary bus Completions for previously issued memory read requests on the p...

Страница 146: ...his field 13 RO 0b Uncore Received Master Abort Status RMAS This bit is set when a Requester receives a Completion with Unsupported Request Completion Status On a Function with a Type 1 Configuration...

Страница 147: ...rt 7 RO 0b Uncore Fast Back to Back FB2B Not Applicable or Implemented Hardwired to 0 6 6 RO 0h Reserved 5 RO 0b Uncore 66 60 MHz capability CAP66 Not Applicable or Implemented Hardwired to 0 4 RO 1b...

Страница 148: ...ly Desktop Specification Update for the value of the RID register 3 0 RO FW 0h Uncore Revision Identification Number RID This is an 8 bit value that indicates the revision identification number for th...

Страница 149: ...s but has no impact on any PCI Express device functionality B D F Type 0 6 0 PCI Address Offset Eh Reset Value 01h Access RO Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RO 01h Uncore Head...

Страница 150: ...apping of configuration cycles to PCI Express G B D F Type 0 6 0 PCI Address Offset 19h Reset Value 00h Access RW Size 8 bits Bit Attr Reset Value RST PWR Description 7 0 RW 00h Uncore Secondary Bus N...

Страница 151: ...address decode address bits A 11 0 are assumed to be FFFh Thus the top of the defined I O address range will be at the top of a 4 KB aligned address block B D F Type 0 6 0 PCI Address Offset 1Ch Rese...

Страница 152: ...nitiated by the Type 1 Header Device itself receives a Completion with Unsupported Request Completion Status 12 RW1C 0b Uncore Received Target Abort RTA This bit is set when the Secondary Side for Typ...

Страница 153: ...his register are read only and return zeroes when read This register must be initialized by the configuration software For the purpose of address decode address bits A 19 0 are assumed to be 0 Thus th...

Страница 154: ...ructures of the graphics controller will reside and PMBASE and PMLIMIT are used to map prefetchable address ranges typically graphics local memory This segregation allows application of USWC space att...

Страница 155: ...s A 39 32 of the 40 bit address This register must be initialized by the configuration software For the purpose of address decode address bits A 19 0 are assumed to be 0 Thus the bottom of the defined...

Страница 156: ...e address bits A 19 0 are assumed to be FFFFFh Thus the top of the defined memory address range will be at the top of a 1 MB aligned memory block Note that prefetchable memory range is supported to al...

Страница 157: ...ond to address bits A 31 20 of the 39 bit address The lower 7 bits of the Upper Base Address register are read write and correspond to address bits A 38 32 of the 39 bit address This register must be...

Страница 158: ...memory address range will be at the top of a 1 MB aligned memory block Note that prefetchable memory range is supported to allow segregation by the configuration software between the memory ranges th...

Страница 159: ...his register as it initializes and configures the system The value indicates to which input of the system interrupt controller this device s interrupt pin is connected B D F Type 0 6 0 PCI Address Off...

Страница 160: ...Uncore Primary Discard Timer PDT Not Applicable or Implemented Hardwired to 0 7 RO 0b Uncore Fast Back to Back Enable FB2BEN Not Applicable or Implemented Hardwired to 0 6 RW 0b Uncore Secondary Bus...

Страница 161: ...e defined by the IOBASE and IOLIMIT registers 1 RW 0b Uncore SERR Enable SERREN 0 No forwarding of error messages from secondary side to primary side that could result in an SERR 1 ERR_COR ERR_NONFATA...

Страница 162: ...Auxiliary Current AUXC Hardwired to 0 to indicate that there are no 3 3Vaux auxiliary current requirements 21 RO 0b Uncore Device Specific Initialization DSI Hardwired to 0 to indicate that special in...

Страница 163: ...evice does not generate PME assertion from any D state 0 Disable PME generation not possible from any D State 1 Enable PME generation enabled from any D State The setting of this bit has no effect on...

Страница 164: ...device also cannot generate interrupts or respond to MMR cycles in the D3 state The device must return to the D0 state in order to be fully functional When the Power State is other than D0 the bridge...

Страница 165: ...m the PCI PM capability to the PCI Express capability B D F Type 0 6 0 PCI Address Offset 8C 8Fh Reset Value 00008086h Access RW O Size 32 bits Bit Attr Reset Value RST PWR Description 31 16 RW O 0000...

Страница 166: ...nerating a 64 bit memory address This may need to change in future implementations when addressable system memory exceeds the 32b 4 GB limit 6 4 RW 000b Uncore Multiple Message Enable MME System softw...

Страница 167: ...e 0000h Access RW Size 16 bits Bit Attr Reset Value RST PWR Description 15 0 RW 0000h Uncore Message Data MD Base message data pattern assigned by system software and used to handle an MSI from the de...

Страница 168: ...a slot connection is not implemented 7 4 RO 4h Uncore Device Port Type DPT Hardwired to 4h to indicate root port of PCI Express Root Complex 3 0 RO 2h Uncore PCI Express Capability Version PCIECV Har...

Страница 169: ...ROE 3 RW 0b Uncore Unsupported Request Reporting Enable URRE When set this bit allows signaling ERR_NONFATAL ERR_FATAL or ERR_CORR to the Root Control register when detecting an unmasked Unsupported R...

Страница 170: ...bit or the Fatal Error Detected bit is set according to the setting of the Unsupported Request Error Severity bit In production systems setting the Fatal Error Detected bit is not an option as support...

Страница 171: ...h Disable HAWD When Set this bit disables hardware from changing the Link width for reasons other than attempting to correct unreliable Link operation by reducing Link width Devices that do not implem...

Страница 172: ...turns 0 when read This bit is cleared automatically no need to write a 0 4 RW 0b Uncore Link Disable LD 0 Normal operation 1 Link is disabled Forces the TXTSSM to transition to the Disabled state usin...

Страница 173: ...hen the Link is in the process of retraining for some other reason Hardware has autonomously changed link speed or width to attempt to correct unreliable link operation either through an TXTSSM time o...

Страница 174: ...O V RO Size 16 bits BIOS Optimal Default 0h Bit Attr Reset Value RST PWR Description B D F Type 0 6 0 PCI Address Offset B4 B7h Reset Value 00040000h Access RW O RO Size 32 bits Bit Attr Reset Value R...

Страница 175: ...ication This is a form factor specific capability This bit is an indication to the operating system to allow for such removal without impacting continued software operation 4 RO 0b Uncore Reserved for...

Страница 176: ...ined encodings Reads of this field must reflect the value from the latest write even if the corresponding hotplug command is not complete unless software issues a write without waiting for the previou...

Страница 177: ...Reserved for Command Completed Interrupt Enable CCI If Command Completed notification is supported as indicated by No Command Completed Support field of Slot Capabilities Register when set to 1b this...

Страница 178: ...presence detect mechanism and if present any out of band presence detect mechanism defined for the slot s corresponding form factor Note that the in band presence detect mechanism requires that power...

Страница 179: ...ted this bit is set when the Power Controller detects a power fault at this slot Note that depending on hardware capability it is possible that a power fault can be detected at any time independent of...

Страница 180: ...h RSVD Reserved 0h RO 110 113h VC0RCAP VC0 Resource Capability 00000001h RO 114 117h VC0RCTL VC0 Resource Control 800000FFh RO RW 118 119h RSVD Reserved 0h RO 11A 11Bh VC0RSTS VC0 Resource Status 0002...

Страница 181: ...ty Structure A value of 0 indicates that the table is not present due to fixed VC priority 23 8 RO 0h Reserved 7 0 RO 00h Uncore Reserved for VC Arbitration Capability VCAC B D F Type 0 6 0 MMR Addres...

Страница 182: ...itration supported by the VC resource This field is valid for all Switch Ports Root Ports that support peer to peer traffic and RCRBs but not for PCI Express Endpoint devices or Root Ports that do not...

Страница 183: ...press Endpoint devices or Root Ports that do not support peer to peer traffic The permissible value of this field is a number corresponding to one of the asserted bits in the Port Arbitration Capabili...

Страница 184: ...VC0NP 0 The VC negotiation is complete 1 The VC resource is still in the process of negotiation initialization or disabling This bit indicates the status of the process of Flow Control initialization...

Страница 185: ...25h RSVD Reserved 0h RO 26 27h DMIVC1RSTS DMI VC1 Resource Status 0002h RO V 28 2Bh DMIVCPRCAP DMI VCp Resource Capability 00000001h RO 2C 2Fh DMIVCPRCTL DMI VCp Resource Control 02000000h RO RW 30 3...

Страница 186: ...Reset Value Access B D F Type 0 0 0 DMIBAR Address Offset 0 3h Reset Value 04010002h Access RO Size 32 bits Bit Attr Reset Value RST PWR Description 31 20 RO 040h Uncore Pointer to Next Capability PNC...

Страница 187: ...Count LPEVCC This field indicates the number of extended Virtual Channels in addition to the default VC belonging to the low priority VC LPVC group that has the lowest priority with respect to other V...

Страница 188: ...me such as Round Robin Others Reserved See the PCI express specification for more details 0 RO 0b Uncore Reserved for Load VC Arbitration Table LVCAT B D F Type 0 0 0 DMIBAR Address Offset 10 13h Rese...

Страница 189: ...service Valid value for this field is a number corresponding to one of the asserted bits in the Port Arbitration Capability field of the VC resource Because only bit 0 of that field is asserted This...

Страница 190: ...ully exits the FC_INIT2 state BIOS Requirement Before using a Virtual Channel software must check whether the VC Negotiation Pending fields for that Virtual Channel are cleared in both Components on a...

Страница 191: ...Channel in both Components on a Link before re enabling the Virtual Channel 30 27 RO 0h Reserved 26 24 RW 001b Uncore Virtual Channel 1 ID VC1ID Assigns a VC ID to the VC resource Assigned value must...

Страница 192: ...rtual Channel is Disabled or the Link is in the DL_Down state It is cleared when the link successfully exits the FC_INIT2 state Before using a Virtual Channel software must check whether the VC Negoti...

Страница 193: ...k 2 To disable a Virtual Channel the VC Enable bits for that Virtual Channel must be cleared in both Components on a Link 3 Software must ensure that no traffic is using a Virtual Channel at the time...

Страница 194: ...VC negotiation is complete 1 The VC resource is still in the process of negotiation initialization or disabling Software may use this bit when enabling or disabling the VC This bit indicates the statu...

Страница 195: ...ss port of the component to provide arbitration to this Root Complex Element 23 16 RW O 00h Uncore Component ID CID This field identifies the physical component that contains this Root Complex Element...

Страница 196: ...Value will likely be correct because the DMI RCRB in the PCH will likely be associated with the default egress port for the PCH meaning it will be assigned port number 0 23 16 RW O 00h Uncore Target...

Страница 197: ...ns this element as specified by the target component ID 23 16 RW O 00h Uncore Target Component ID TCID This field identifies the physical or logical component that is targeted by this link entry BIOS...

Страница 198: ...More than 64 s Both bytes of this register that contain a portion of this field must be written simultaneously in order to prevent an intermediate and undesired value from ever existing 14 12 RW O 010...

Страница 199: ...Training Sequence FTS 1 Forces the transmission of additional ordered sets when exiting the L0s state and when in the Recovery state This mode provides external devices such as logic analyzers monito...

Страница 200: ...o the Retrain Link bit but Link training has not yet begun Hardware clears this bit when the TXTSSM exits the Configuration Recovery state once Link training is complete 10 10 RO 0h Reserved 9 4 RO V...

Страница 201: ...ulti Function device associated with an Upstream Port the bit in Function 0 is of type RWS and only Function 0 controls the component s Link behavior In all other Functions of that device this bit is...

Страница 202: ...it to 1 in both components on a link and then initiating a hot reset on the link 3 0 RWS 2h Powerg ood Target Link Speed TLS For Downstream ports this field sets an upper limit on link operational spe...

Страница 203: ...Reset Value 0000h Access RO V Size 16 bits BIOS Optimal Default 0000h Bit Attr Reset Value RST PWR Description 15 1 RO 0h Reserved 0 RO V 0b Uncore Current De emphasis Level CURDELVL When the Link is...

Страница 204: ...dress Offset Register Symbol Register Name Reset Value Access 0 40AFh RSVD Reserved 40B0 40B3h PM_PDWN_config_C0 Power down Configuration 00000000h RW L 40B4 40C7h RSVD Reserved 40D0 438Fh RSVD Reserv...

Страница 205: ...in order to use the maximum no refresh period possible 11 8 RW L 8h Uncore Refresh high priority WM Refresh_HP_WM tREFI count level that turns the refresh priority to high default is 8 7 0 RW L 0Fh Un...

Страница 206: ...4698 469Bh TC_RFTP_C1 Refresh Parameters 46B41004h RW L 469C 438Fh RSVD Reserved B D F Type 0 0 0 MCHBAR MC1 Address Offset 44B0 44B3h Default Value 00000000h Access RW L Size 32 bits BIOS Optimal De...

Страница 207: ...order to use the maximum no refresh period possible 11 8 RW L 8h Uncore Refresh high priority WM Refresh_HP_WM tREFI count level that turns the refresh priority to high default is 8 7 0 RW L 0Fh Unco...

Страница 208: ...of credits for GSA VC1 completions 26 24 RW L 1h Uncore GSA VC0 Minimum Completion Credits GSAVC0 Minimum number of credits for GSA VC0 completions 23 21 RW L 1h Uncore PEG60 VC0 Minimum Completion C...

Страница 209: ...l Register Name Reset Value Access 0 4FFFh RSVD Reserved 0h RO 5000 5003h MAD_CHNL Address decoder Channel Configuration 00000024h RW L 5004 5007h MAD_DIMM_ch0 Address Decode Channel 0 00600000h RW L...

Страница 210: ...mode Enh_Interleave 0 Off 1 On 21 RW L 1b Uncore Rank Interleave RI 0 Off 1 On 20 RW L 0b Uncore DIMM B DDR Width DBW DIMM B width of DDR chips 0 X8 chips 1 X16 chips 19 RW L 0b Uncore DIMM A DDR Wid...

Страница 211: ...leave mode Enh_Interleave 0 Off 1 On 21 RW L 1b Uncore Rank Interleave RI 0 Off 1 On 20 RW L 0b Uncore DIMM B DDR width DBW DIMM B width of DDR chips 0 X8 chips 1 X16 chips 19 RW L 0b Uncore DIMM A DD...

Страница 212: ...ult 0000h Bit Attr Reset Value RST PWR Description 31 17 RO 0h Reserved 16 RW L 1 Uncore Self refresh Enable This control bit is an INTEL RESERVED bit It is for test and debug purposes only This bit e...

Страница 213: ...Bh PM_BW_LIMIT_config BW Limit Configuration FFFF03FFh RW L 4F8C 4F8Fh RSVD Reserved FF1D1519h RW L B D F Type 0 0 0 MCHBAR_MCBCAST Address Offset 4CB0 4CB3h Default Value 00000000h Access RW L Size 3...

Страница 214: ...ite command PWR_CAS_W 15 8 RW LV 00h Uncore Power contribution of CAS Read command PWR_CAS_R 7 0 RW LV 00h Uncore Power contribution of RAS command and PRE command PWR_RAS_PRE Power contribution of RA...

Страница 215: ...nt Control Register 80000000h RW RO V 3C 3Fh FEDATA_REG Fault Event Data Register 00000000h RW 40 43h FEADDR_REG Fault Event Address Register 00000000h RW 44 47h FEUADDR_REG Fault Event Upper Address...

Страница 216: ...REG IOTLB Invalidate Register 0200000000 000000h RW V RW RO V 110 1FFh RSVD Reserved 0h RO 200 207h FRCDL_REG Fault Recording Low Register 0000000000 000000h ROS V 208 20Fh FRCDH_REG Fault Recording H...

Страница 217: ...emapping hardware unit in the platform The maximum number of fault recording registers per remapping hardware unit is 256 39 RO 0b Uncore Page Selective Invalidation PSI 0 Hardware supports only domai...

Страница 218: ...ns requests to address above 2 x 1 1 from allowed devices return a null Translation Completion Data Entry with R W 0 Guest addressability for a given DMA request is limited to the minimum of the value...

Страница 219: ...Uncore Required Write Buffer Flushing RWBF 0 No write buffer flushing is needed to ensure changes to memory resident structures are visible to hardware 1 Software must explicitly flush the write buff...

Страница 220: ...st IOTLB invalidation register is calculated as X 16 Y 7 RO 0b Uncore Snoop Control SC 0 Hardware does not support 1 setting of the SNP field in the page table entries 1 Hardware supports the 1 settin...

Страница 221: ...upports queued invalidations 0 RO 0b Uncore Coherency C This field indicates if hardware access to the root context page table and interrupt remap structures are coherent snooped or not 0 Hardware acc...

Страница 222: ...and reflecting the status of the command through the TES field in the Global Status register The value returned on a read of this field is undefined 30 WO 0b Uncore Set Root Table Pointer SRTP Softwar...

Страница 223: ...nter must be set in hardware through the SFL field before enabling advanced fault logging Hardware reports the status of the advanced fault logging enable operation through the AFLS field in the Globa...

Страница 224: ...g or re enabling after disabling interrupt remapping hardware through the IRE field After a Set Interrupt Remap Table Pointer operation software must globally invalidate the interrupt entry cache This...

Страница 225: ...lobal Command register 1 Set by hardware when hardware completes the Set Fault Log Pointer operation using the value provided in the Advanced Fault Log register 28 RO 0b Uncore Advanced Fault Logging...

Страница 226: ...nabled and Extended Interrupt Mode x2APIC mode is not enabled 0 Compatibility format interrupts are blocked 1 Compatibility format interrupts are processed as pass through bypassing interrupt remappin...

Страница 227: ...invalidation requests pending at this remapping hardware unit Since information from the context cache may be used by hardware to tag IOTLB entries software must perform domain selective or global inv...

Страница 228: ...lidations The following encodings are defined for this field 00 No bits in the SID field masked 01 Mask most significant bit of function number in the SID field 10 Mask two most significant bit of fun...

Страница 229: ...ardware received an unexpected or invalid Device IOTLB invalidation completion This could be due to either an invalid ITag or invalid source id in an invalidation completion response At this time a fa...

Страница 230: ...lds across all the fault recording registers of this remapping hardware unit 0 No pending faults in any of the fault recording registers 1 One or more fault recording registers has pending faults The...

Страница 231: ...ter Hardware detected error associated with the Invalidation Queue setting the IQE bit in the Fault Status register Hardware detected invalid Device IOTLB invalidation completion setting the ICE bit i...

Страница 232: ...orting only 16 bit interrupt data may treat this field as RsvdZ 15 0 RW 0000h Uncore Interrupt Message Data IMD Data value in the interrupt request B D F Type 0 0 0 GFXVTBAR Address Offset 40 43h Rese...

Страница 233: ...Address FLA This field specifies the base of 4 KB aligned fault log region in system memory Hardware ignores and does not implement bits 63 HAW where HAW is the host address width Software specifies t...

Страница 234: ...enabled all DMA requests accessing protected memory regions are blocked When DMA remapping is enabled DMA requests processed as pass through Translation Type value of 10b in Context Entry and accessin...

Страница 235: ...ds on the number of reserved bits N 0 of this register Software may determine N by writing all 1s to this register and finding the most significant zero bit position with 0 in the value read back from...

Страница 236: ...the value read back from the register Bits N 0 of the limit register is decoded by hardware as all 1s The Protected low memory base and limit registers functions as follows Programming the protected l...

Страница 237: ...iting all 1 s to this register and finding most significant zero bit position below host address width HAW in the value read back from the register Bits N 0 of this register are decoded by hardware as...

Страница 238: ...e limit register is decoded by hardware as all 1s The protected high memory base limit registers functions as follows Programming the protected low memory base and limit registers with the same value...

Страница 239: ...ccess RO V Size 64 bits BIOS Optimal Default 0000000000000h Bit Attr Reset Value RST PWR Description 63 19 RO 0h Reserved 18 4 RO V 0000h Uncore Queue Head QH This field specifies the offset 128 bit a...

Страница 240: ...39 RO 0h Reserved 38 12 RW L 0000000h Uncore Invalidation Queue Base Address IQA This field points to the base of 4 KB aligned invalidation request queue Hardware ignores and does not implement bits 6...

Страница 241: ...hen this field is set 30 RO V 0b Uncore Interrupt Pending IP Hardware sets the IP bit when it detects an interrupt condition Interrupt condition is defined as An Invalidation Wait Descriptor with Inte...

Страница 242: ...RST PWR Description 31 16 RW L 0000h Uncore Extended Interrupt Message Data EIMD This field is valid only for implementations supporting 32 bit interrupt data fields Hardware implementations supportin...

Страница 243: ...res and does not implement bits 63 HAW where HAW is the host address width Reads of this field returns value that was last programmed to it 11 RW L 0b Uncore Extended Interrupt Mode Enable EIME This f...

Страница 244: ...hardware 0 Software may have modified both leaf and non leaf page table entries corresponding to mappings specified in the ADDR and AM fields On a page selective invalidation request hardware must fl...

Страница 245: ...on requests when there is a context cache invalidation request pending at this remapping hardware unit Hardware implementations reporting write buffer flushing requirement RWBF 1 in Capability registe...

Страница 246: ...he DRD field is reported as clear in the Capability register When the DRD field is reported as set in the Capability register the following encodings are supported for this bit 0 Hardware may complete...

Страница 247: ...Value 0000000000000000h Access ROS V Size 64 bits BIOS Optimal Default 0000000000000000h Bit Attr Reset Value RST PWR Description 63 12 ROS V 00000000 00000h Powerg ood Fault Info FI When the Fault Re...

Страница 248: ...r fields When this bit is set hardware may collapse additional faults from the same source id SID Software writes the value read from this field to clear it 62 ROS V 0b Powerg ood Type T Type of the f...

Страница 249: ...0000000h Access RO RO KFW RW KL RW L Size 32 bits BIOS Optimal Default 0000h Bit Attr Reset Value RST PWR Description 31 RW KL 0b Uncore DMA Remap Engine Policy Lock Down DMAR_LCKDN This bit protects...

Страница 250: ...erved 00000000h RW 5888 588B MEM_TRML_THRE SHOLDS_CONFIG Memory Thermal Thresholds Configuration 00E4D5D0h RW 588C 589Fh RSVD Reserved 58A0 58A3 MEM_TRML_STAT US_REPORT Memory Thermal Status Report 00...

Страница 251: ...ion of the memory BW to temperature The units are given in 1 power 2 44 21 12 RW 0C8h Uncore VTS time constant VTS_TIME_CONSTANT This factor is relevant only for BW based temperature estimation It is...

Страница 252: ...ritical Temperature TEMP CRITICAL_TH This register is read by PCODE only during Reset Phase 4 NOTE The threshold values must be programmed such that WARM_TH HOT_TH CRITICAL_TH B D F Type 0 0 0 MCHBAR...

Страница 253: ...core Double Self refresh DSR 0 Normal self refresh 1 Double self refresh 23 16 RO V 00h Reserved 15 8 RO V 00h Uncore Channel 1 Status CHANNEL1_STATUS The format is for each channel is defined as foll...

Страница 254: ...ure CHANNEL1_ESTIMATED_MAX_TEMPERATURE VTS Estimated Temperature in Degrees C 7 0 RO V 00h Uncore Channel 0 VTS Estimated Max Temperature CHANNEL0_ESTIMATED_MAX_TEMPERATURE VTS Estimated Temperature i...

Страница 255: ...the current RP state 7 0 RO V 00h Uncore RP State VID RP_STATE_VID VID of the current RP state B D F Type 0 0 0 MCHBAR PCU Address Offset 5998 599Bh Default Value 00000000h Access RO FW Size 32 bits B...

Страница 256: ...for future use 29 24 RWS 00h Powerg ood MPLL Shutdown Latency Time WM3 Number of microseconds to access memory if memory is in Self Refresh SR with MDLLs and Memory PLLs shut off 0 5us granularity 00h...

Страница 257: ...hen Memory is in Self Refresh The Display LP1 latency and watermark values GTTMMADR offset 45118h should be programmed to match the latency in this register 7 6 RWS 00b Powerg ood Reserved for Future...

Страница 258: ...mbol Register Name Reset Value Access 0 13h RSVD Reserved 0h RO 14 17h EPVC0RCTL EP VC 0 Resource Control 800000FFh RO RW 18 9F RSVD Reserved B D F Type 0 0 0 PXPEPBAR Address Offset 14 17h Reset Valu...

Страница 259: ...ontrol Register 80000000h RW RO V 3C 3Fh FEDATA_REG Fault Event Data Register 00000000h RW 40 43h FEADDR_REG Fault Event Address Register 00000000h RW 44 47h FEUADDR_REG Fault Event Upper Address Regi...

Страница 260: ...er 0000000000 000000h RW 108 10Fh IOTLB_REG IOTLB Invalidate Register 0000000000 000000h RW RO V RW V 110 1FFh RSVD Reserved 0h RO 200 207h RSVD Reserved 0000000000 000000h ROS V 208 20Fh RSVD Reserve...

Страница 261: ...apping hardware unit in the platform The maximum number of fault recording registers per remapping hardware unit is 256 39 RO 1b Uncore Page Selective Invalidation PSI 0 Hardware supports only domain...

Страница 262: ...s requests to address above 2 x 1 1 from allowed devices return a null Translation Completion Data Entry with R W 0 Guest addressability for a given DMA request is limited to the minimum of the value...

Страница 263: ...s supported 4 RO 0b Uncore Required Write Buffer Flushing RWBF 0 No write buffer flushing is needed to ensure changes to memory resident structures are visible to hardware 1 Software must explicitly f...

Страница 264: ...t IOTLB invalidation register is calculated as X 16 Y 7 RO V 1b Uncore Snoop Control SC 0 Hardware does not support 1 setting of the SNP field in the page table entries 1 Hardware supports the 1 setti...

Страница 265: ...eued invalidations 0 RO 0b Uncore Coherency C This field indicates if hardware access to the root context page table and interrupt remap structures are coherent snooped or not 0 Indicates hardware acc...

Страница 266: ...and reflecting the status of the command through the TES field in the Global Status register The value returned on a read of this field is undefined 30 WO 0b Uncore Set Root Table Pointer SRTP Softwar...

Страница 267: ...nter must be set in hardware through the SFL field before enabling advanced fault logging Hardware reports the status of the advanced fault logging enable operation through the AFLS field in the Globa...

Страница 268: ...g or re enabling after disabling interrupt remapping hardware through the IRE field After a Set Interrupt Remap Table Pointer operation software must globally invalidate the interrupt entry cache This...

Страница 269: ...Command register 1 Set by hardware when hardware completes the Set Fault Log Pointer operation using the value provided in the Advanced Fault Log register 28 RO 0b Uncore Advanced Fault Logging Statu...

Страница 270: ...enabled and Extended Interrupt Mode x2APIC mode is not enabled 0 Compatibility format interrupts are blocked 1 Compatibility format interrupts are processed as pass through bypassing interrupt remappi...

Страница 271: ...invalidation requests pending at this remapping hardware unit Since information from the context cache may be used by hardware to tag IOTLB entries software must perform domain selective or global inv...

Страница 272: ...ective invalidations The following encodings are defined for this field 00 No bits in the SID field masked 01 Mask most significant bit of function number in the SID field 10 Mask two most significant...

Страница 273: ...received an unexpected or invalid Device IOTLB invalidation completion This could be due to either an invalid ITag or invalid source id in an invalidation completion response At this time a fault even...

Страница 274: ...across all the fault recording registers of this remapping hardware unit 0 No pending faults in any of the fault recording registers 1 One or more fault recording registers has pending faults The FRI...

Страница 275: ...dware detected error associated with the Invalidation Queue setting the IQE field in the Fault Status register Hardware detected invalid Device IOTLB invalidation completion setting the ICE field in t...

Страница 276: ...ing only 16 bit interrupt data may treat this field as RsvdZ 15 0 RW 0000h Uncore Interrupt Message Data IMD Data value in the interrupt request B D F Type 0 0 0 VC0PREMAP Address Offset 40 43h Reset...

Страница 277: ...Address FLA This field specifies the base of 4 KB aligned fault log region in system memory Hardware ignores and does not implement bits 63 HAW where HAW is the host address width Software specifies t...

Страница 278: ...enabled all DMA requests accessing protected memory regions are blocked When DMA remapping is enabled DMA requests processed as pass through Translation Type value of 10b in Context Entry and accessin...

Страница 279: ...nds on the number of reserved bits N 0 of this register Software may determine N by writing all 1s to this register and finding the most significant zero bit position with 0 in the value read back fro...

Страница 280: ...e value read back from the register Bits N 0 of the limit register is decoded by hardware as all 1s The Protected low memory base and limit registers functions as follows Programming the protected low...

Страница 281: ...iting all 1s to this register and finding most significant zero bit position below host address width HAW in the value read back from the register Bits N 0 of this register are decoded by hardware as...

Страница 282: ...imit register are decoded by hardware as all 1s The protected high memory Base and Limit registers function as follows Programming the protected low memory base and limit registers with the same value...

Страница 283: ...RO V Size 64 bits BIOS Optimal Default 0000000000000h Bit Attr Reset Value RST PWR Description 63 19 RO 0h Reserved 18 4 RO V 0000h Uncore Queue Head QH This field specifies the offset 128 bit aligned...

Страница 284: ...0h Reserved 38 12 RW L 0000000h Uncore Invalidation Queue Base Address IQA This field points to the base of 4 KB aligned invalidation request queue Hardware ignores and does not implement bits 63 HAW...

Страница 285: ...ield is Set 30 RO V 0b Uncore Interrupt Pending IP Hardware sets the IP field whenever it detects an interrupt condition Interrupt condition is defined as An Invalidation Wait Descriptor with Interrup...

Страница 286: ...0 VC0PREMAP Address Offset A4 A7h Reset Value 00000000h Access RW L Size 32 bits Bit Attr Reset Value RST PWR Description 31 16 RW L 0000h Uncore Extended Interrupt Message Data EIMD This field is va...

Страница 287: ...0000000000000000h Access RW L Size 64 bits BIOS Optimal Default 00000000h Bit Attr Reset Value RST PWR Description 63 39 RO 0h Reserved 38 12 RW L 0000000h Uncore Interrupt Remapping Table Address IRT...

Страница 288: ...n hardware 0 Software may have modified both leaf and non leaf page table entries corresponding to mappings specified in the ADDR and AM fields On a page selective invalidation request hardware must f...

Страница 289: ...n requests when there is a context cache invalidation request pending at this remapping hardware unit Hardware implementations reporting write buffer flushing requirement RWBF 1 in Capability register...

Страница 290: ...f the DRD field is reported as clear in the Capability register When the DRD field is reported as Set in the Capability register the following encodings are supported for this field 0 Hardware may com...

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