1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*++
This file contains an 'Intel Peripheral Driver' and is
licensed for Intel CPUs and chipsets under the terms of your
license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the
license agreement
--*/
/*++
Copyright (c) 2013 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
Module Name:
Lpit.h
Abstract:
This file describes the contents of the ACPI Low Power Idle Table (LPIT).
All changes to the LPIT contents should be done in this file.
--*/
#ifndef _LPIT_H_
#define _LPIT_H_
//
// Statements that include other files
//
#include "LowPowerIdleTable.h"
//
// Defines for LPIT table, some are HSW ULT specific
//
// signature "LPIT"
#define EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE 0x5449504c
#define EFI_ACPI_OEM_LPIT_REVISION 0x00000000
#define EFI_ACPI_CREATER_ID 0x2e494d41 //"AMI."
#define EFI_ACPI_CREATER_REVISION 0x5
#define EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE 0x0
#define EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG 0x0
#define EFI_ACPI_LOW_POWER_IDLE_NO_RES_COUNTER_FLAG 0x2
#define EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_TSC 0x0
//
// LPI state count (only 1 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_STATE_COUNT 2
//
// LPI TRIGGER (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_TRIGGER {0x7F,0x1,0x2,0x0,0x60}
//
// LPI residency counter (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_RES_COUNTER {0x7F,64,0x0,0x0,0x632}
//
// LPI DUMMY COUNTER
//
#define EFI_ACPI_HSW_DUMMY_RES_COUNTER {0x0,0,0x0,0x0,0x0}
//
// LPI break-even residency in us (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_MIN_RES 30000
//
// LPI latency in us (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_LATENCY 3000
//
// LPI ID (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_AUDIO_ID 0
//
// LPI ID (HW C10 on HSW ULT)
//
#define EFI_ACPI_HSW_LPI_CS_ID 1
//
// LPI ACPI table header
//
#pragma pack(1)
typedef struct _EFI_ACPI_LOW_POWER_IDLE_TABLE {
EFI_ACPI_DESCRIPTION_HEADER Header;
EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR LpiStates[EFI_ACPI_HSW_LPI_STATE_COUNT];
} EFI_ACPI_LOW_POWER_IDLE_TABLE;
#pragma pack()
#endif //_LPIT_H_
|
