Advanced Configuration and Power Interface Specification

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Advanced Configuration and Power Interface Specification Field Byte Length Byte Offset Description Flags (OUTPUT) 2 40 The platform returns this value in response to GET_PATROL_PARAMETERS Bit [0]: Will be set if patrol scrubber is already running for address range specified in “Actual Address Range” Bits [3:1]: Current Patrol Speeds, if Bit [0] is set 000b – Slow 100b – Medium 111b – Fast All other combinations are reserved. Bits [15:4]: RESERVED Requested Speed (INPUT) 1 42 The OSPM Sets this field as follows, for the START_PATROL_SCRUBBER command Bit [0]: Will be set if patrol scrubber is already running for address range specified in “Actual Address Range” Bits [2:0]: Requested Patrol Speeds 000b – Slow 100b – Medium 111b – Fast All other combinations are reserved. Bits [7:3]: RESERVED 5.2.20.5.1 Sequence of Operations: The following sequence documents the steps for OSPM to identify whether the platform supports hardware based patrol scrub and invoke commands to request hardware to patrol scrub the specified address range. 1. Identify whether the platform supports hardware based patrol scrub and exposes the support to software by reading the RAS capabilities bitmap in RASF table 2. Call GET_PATROL_PARAMETERS, by setting the Requested Address Range. 3. Platform Returns Actual Address Range and Flags. 4. Based on the above two data, if the OPSM decides to start the patrol scrubber or change the speed of the patrol scrubber, then the OSPM calls START_PATROL_SCRUBBER, by setting the Requested Address Range and Requested Speed. 5.2.21 Memory Power StateTable (MPST) The following table describes the structure of new ACPI memory power state table (MPST). This table defines the memory power node topology of the configuration, as described earlier in 170 April, 2015 Version 6.0
ACPI Software Programming Model Section 1. The configuration includes specifying memory power nodes and their associated information. Each memory power node is specified using address ranges, supported memory power states. The memory power states will include both hardware controlled and software controlled memory power states. There can be multiple entries for a given memory power node to support non contiguous address ranges. MPST table also defines the communication mechanism between OSPM and BIOS for triggering software controlled memory powerstate transitions implemented in BIOS. Version 6.0 171
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Advanced Configuration and Power In
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Revision History Revision Change De
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Contents 1 2 Introduction........
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5 ACPI Software Programming Model
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7 6.3.6 _RMV (Remove) ............
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9.2.5 _ALR (Ambient Light Response)
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11.2.1 Evaluating Thermal Device Li
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14.1.3 Generic Communications Subsp
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19.6.10 Buffer (Declare Buffer Obje
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19.6.102 Processor (Declare Process
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A.4.1 Power State Definitions......
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Tables Table 1-1 Hardware Type vs.
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Table 5-91 Power state Values .....
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Table 6-184 Device Insertion, Remov
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Table 10-275 Control Method Battery
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Table 19-367 Field Unit list entire
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Figures Figure 1-1 OSPM/ACPI Global
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Introduction 1 Introduction The Adv
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Introduction wake and answer the te
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Introduction Figure 1-1 OSPM/ACPI G
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Introduction specified below are ge
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Introduction ACPI System Descriptio
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Introduction • Support the ACPI E
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Introduction 1.9.2 Programming Mode
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Introduction 1.10 Related Documents
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Definition of Terms 2 Definition of
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Definition of Terms of power manage
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Definition of Terms I/O SAPIC An In
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Definition of Terms loaded. This al
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Definition of Terms state to allow
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ACPI Overview 3 ACPI Overview Platf
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ACPI Overview Aspects of mobile PC
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ACPI Overview level, platform-speci
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ACPI Overview the SCI status bit ma
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ACPI Overview Each device enumerate
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ACPI Hardware Specification 4 ACPI
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Device Configuration 6 Device Confi
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Device Configuration BUS PCMCIA PC
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Device Configuration Device(SATA) /
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Device Configuration Return Value I
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Device Configuration Name Definitio
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Device Configuration Field Byte Len
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Device Configuration Table 6-187 Op
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Device Configuration Method(_EJ0, 1
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Device Configuration 6.4.2 Small Re
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Device Configuration Offset Field N
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Device Configuration 6.4.2.9 End Ta
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Device Configuration Offset Byte 11
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Device Configuration To specify mul
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Device Configuration 6.5 Other Obje
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Device Configuration whether the Gl
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Power and Performance Management 7
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Power and Performance Management
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Power and Performance Management 9.
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Processor Configuration and Control
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Thermal Management 11 Thermal Manag
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Thermal Management When a thermal z
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Thermal Management controller firmw
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Thermal Management 11.1.5 Passive C
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Thermal Management 11.2 Cooling Pre
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Thermal Management Alternatively, d
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Thermal Management 11.3.1.2 _FPS (F
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Thermal Management Package (){ Revi
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Thermal Management 11.4.2 _ALx (Act
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Thermal Management Element Object T
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Thermal Management Return Value: No
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Thermal Management Other Temperatur
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Thermal Management Scope(\_SB) { De
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Thermal Management // For brevity,
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Thermal Management External(\_SB.CP
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Thermal Management Method(_TPT, 1)
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ACPI Embedded Controller Interface
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Platform Communications Channel (PC
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System Address Map Interfaces 15 Sy
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System Address Map Interfaces EAX F
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System Address Map Interfaces 15.3
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System Address Map Interfaces Base
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Waking and Sleeping 16 Waking and S
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Waking and Sleeping 16.1 Sleeping S
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Waking and Sleeping synchronized wi
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Waking and Sleeping 3. Removing pow
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Waking and Sleeping on what the har
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Waking and Sleeping If an NVS image
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Platforms Non-Uniform Memory Access
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Platforms Non-Uniform Memory Access
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Appendix A Device Class Specificati
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• PCI Bus Power Management Capabi
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A.4.1 Power State Definitions State
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A.5.1 Power State Definitions State
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power transitions and power managem
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A video controller conforming to th
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State Status Definition D2 N/A This
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The most common modem type is an IS
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State Status Definition D1 Optional
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A floppy disk and IDE channel devic
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GPE // ACPI General-purpose HW even
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Pipe / Head Ports Display Types Dis
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the next boot, a 1 indicates a PCI
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Value 0x84 Description Previous Dis
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B.5.5 _DDC (Return the EDID for thi
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Bits Definition 31 0 - Don’t do a
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internal data structure of the OS t
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Symbols _EJx 334 ??????????????????
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Power Resource statements 391 prima
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centenary value, RTC alarm 83 Centr
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power resource objects 398 D2 Devic
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Eject Device List (_EDL) object 332
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features 68 functional implementati
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I/O resource flag 366 I/O SAPIC def
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logic fixed power button 77 lid swi
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objects _ BMC (Battery Maintenance
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transitioning working to soft-off s
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power resources battery management
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definition 22 table fields 115 RTC_
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protocols 650, 662, 669 Read/Write
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top of memory 704 ToString (Convert
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