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3cbfba02 DW |
1 | /*++\r |
2 | \r | |
3 | Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved\r | |
4 | \r | |
5 | This program and the accompanying materials are licensed and made available under\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
7 | The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | \r | |
14 | \r | |
15 | --*/\r | |
16 | \r | |
17 | //\r | |
18 | // Include files\r | |
19 | //\r | |
20 | \r | |
21 | #include <PiDxe.h>\r | |
22 | #include <IndustryStandard/Acpi50.h>\r | |
23 | \r | |
24 | \r | |
25 | \r | |
26 | //\r | |
27 | // LPIT Definitions\r | |
28 | //\r | |
29 | \r | |
30 | #define EFI_ACPI_LOW_POWER_IDLE_TABLE_REVISION 0x1\r | |
31 | \r | |
32 | //\r | |
33 | // Ensure proper structure formats\r | |
34 | //\r | |
35 | #pragma pack(1)\r | |
36 | \r | |
37 | typedef union _EFI_ACPI_LPI_STATE_FLAGS {\r | |
38 | struct {\r | |
39 | UINT32 Disabled :1;\r | |
40 | UINT32 CounterUnavailable :1;\r | |
41 | UINT32 Reserved :30;\r | |
42 | };\r | |
43 | UINT32 AsUlong;\r | |
44 | } EFI_ACPI_LPI_STATE_FLAGS, *PEFI_ACPI_LPI_STATE_FLAGS;\r | |
45 | \r | |
46 | // Only Mwait LPI here:\r | |
47 | \r | |
48 | typedef struct _EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR {\r | |
49 | UINT32 Type; // offset: 0\r | |
50 | UINT32 Length; // offset: 4\r | |
51 | UINT16 UniqueId; // offset: 8\r | |
52 | UINT8 Reserved[2]; // offset: 9\r | |
53 | EFI_ACPI_LPI_STATE_FLAGS Flags; // offset: 12\r | |
54 | EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE EntryTrigger; // offset: 16\r | |
55 | UINT32 Residency; // offset: 28\r | |
56 | UINT32 Latency; // offset: 32\r | |
57 | EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE ResidencyCounter; // offset: 36\r | |
58 | UINT64 ResidencyCounterFrequency; //offset: 48\r | |
59 | } EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR;\r | |
60 | \r | |
61 | \r | |
62 | //\r | |
63 | // Defines for LPIT table, some are VLV specific\r | |
64 | //\r | |
65 | \r | |
66 | \r | |
67 | // signature "LPIT"\r | |
68 | #define EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE 0x5449504c\r | |
69 | \r | |
70 | #define EFI_ACPI_OEM_LPIT_REVISION 0x00000000\r | |
71 | \r | |
72 | #define EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE 0x0\r | |
73 | #define EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG 0x0\r | |
74 | #define EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K 0x8000 // 32768\r | |
75 | \r | |
76 | //\r | |
77 | // LPI state count (4 on VLV: S0ir, S0i1, S0i2, S0i3)\r | |
78 | //\r | |
79 | \r | |
80 | #define EFI_ACPI_VLV_LPI_STATE_COUNT 0x4\r | |
81 | \r | |
82 | //\r | |
83 | // LPI TRIGGER (HW C7 on VLV),\r | |
84 | // TOFIX!!!\r | |
85 | //\r | |
86 | #define EFI_ACPI_VLV_LPI_TRIGGER {0x7F,0x1,0x2,0x0,0x64}\r | |
87 | \r | |
88 | //\r | |
89 | // LPI residency counter (MMIO)\r | |
90 | //\r | |
91 | #define EFI_ACPI_VLV_LPI_RES_COUNTER0 {0x0,32,0x0,0x03,0xFED03080}\r | |
92 | #define EFI_ACPI_VLV_LPI_RES_COUNTER1 {0x0,32,0x0,0x03,0xFED03084}\r | |
93 | #define EFI_ACPI_VLV_LPI_RES_COUNTER2 {0x0,32,0x0,0x03,0xFED03088}\r | |
94 | #define EFI_ACPI_VLV_LPI_RES_COUNTER3 {0x0,32,0x0,0x03,0xFED0308C}\r | |
95 | \r | |
96 | //\r | |
97 | // LPI break-even residency in us - all match S0i3 residency\r | |
98 | // Residency estimate: Latency x 3\r | |
99 | //\r | |
100 | #define EFI_ACPI_VLV_LPI_MIN_RES0 15000\r | |
101 | #define EFI_ACPI_VLV_LPI_MIN_RES1 15000\r | |
102 | #define EFI_ACPI_VLV_LPI_MIN_RES2 15000\r | |
103 | #define EFI_ACPI_VLV_LPI_MIN_RES3 15000\r | |
104 | \r | |
105 | //\r | |
106 | // LPI latency in us - all match S0i3 latency\r | |
107 | //\r | |
108 | #define EFI_ACPI_VLV_LPI_LATENCY0 5000\r | |
109 | #define EFI_ACPI_VLV_LPI_LATENCY1 5000\r | |
110 | #define EFI_ACPI_VLV_LPI_LATENCY2 5000\r | |
111 | #define EFI_ACPI_VLV_LPI_LATENCY3 5000\r | |
112 | \r | |
113 | \r | |
114 | //\r | |
115 | // LPI ID\r | |
116 | //\r | |
117 | #define EFI_ACPI_VLV_LPI_UNIQUE_ID0 0\r | |
118 | #define EFI_ACPI_VLV_LPI_UNIQUE_ID1 1\r | |
119 | #define EFI_ACPI_VLV_LPI_UNIQUE_ID2 2\r | |
120 | #define EFI_ACPI_VLV_LPI_UNIQUE_ID3 3\r | |
121 | \r | |
122 | //\r | |
123 | // LPI ACPI table header\r | |
124 | //\r | |
125 | \r | |
126 | \r | |
127 | typedef struct _EFI_ACPI_LOW_POWER_IDLE_TABLE {\r | |
128 | EFI_ACPI_DESCRIPTION_HEADER Header;\r | |
129 | EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR LpiStates[EFI_ACPI_VLV_LPI_STATE_COUNT];\r | |
130 | } EFI_ACPI_LOW_POWER_IDLE_TABLE;\r | |
131 | \r | |
132 | #pragma pack()\r | |
133 | \r | |
134 | EFI_ACPI_LOW_POWER_IDLE_TABLE Lpit = {\r | |
135 | \r | |
136 | //\r | |
137 | // Header\r | |
138 | //\r | |
139 | \r | |
140 | \r | |
141 | EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE,\r | |
142 | sizeof (EFI_ACPI_LOW_POWER_IDLE_TABLE),\r | |
143 | EFI_ACPI_LOW_POWER_IDLE_TABLE_REVISION ,\r | |
144 | \r | |
145 | //\r | |
146 | // Checksum will be updated at runtime\r | |
147 | //\r | |
148 | 0x00,\r | |
149 | \r | |
150 | //\r | |
151 | // It is expected that these values will be updated at runtime\r | |
152 | //\r | |
153 | ' ', ' ', ' ', ' ', ' ', ' ',\r | |
154 | \r | |
155 | 0,\r | |
156 | EFI_ACPI_OEM_LPIT_REVISION,\r | |
157 | 0,\r | |
158 | 0,\r | |
159 | \r | |
160 | \r | |
161 | \r | |
162 | //\r | |
163 | // Descriptor\r | |
164 | //\r | |
165 | {\r | |
166 | {\r | |
167 | EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,\r | |
168 | sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),\r | |
169 | EFI_ACPI_VLV_LPI_UNIQUE_ID0,\r | |
170 | {0,0},\r | |
171 | {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags\r | |
172 | EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger\r | |
173 | EFI_ACPI_VLV_LPI_MIN_RES0, //Residency\r | |
174 | EFI_ACPI_VLV_LPI_LATENCY0, //Latency\r | |
175 | EFI_ACPI_VLV_LPI_RES_COUNTER0, //ResidencyCounter\r | |
176 | EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency\r | |
177 | },\r | |
178 | {\r | |
179 | EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,\r | |
180 | sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),\r | |
181 | EFI_ACPI_VLV_LPI_UNIQUE_ID1,\r | |
182 | {0,0},\r | |
183 | {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags\r | |
184 | EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger\r | |
185 | EFI_ACPI_VLV_LPI_MIN_RES1, //Residency\r | |
186 | EFI_ACPI_VLV_LPI_LATENCY1, //Latency\r | |
187 | EFI_ACPI_VLV_LPI_RES_COUNTER1, //ResidencyCounter\r | |
188 | EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency\r | |
189 | },\r | |
190 | {\r | |
191 | EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,\r | |
192 | sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),\r | |
193 | EFI_ACPI_VLV_LPI_UNIQUE_ID2,\r | |
194 | {0,0},\r | |
195 | {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags\r | |
196 | EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger\r | |
197 | EFI_ACPI_VLV_LPI_MIN_RES2, //Residency\r | |
198 | EFI_ACPI_VLV_LPI_LATENCY2, //Latency\r | |
199 | EFI_ACPI_VLV_LPI_RES_COUNTER2, //ResidencyCounter\r | |
200 | EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency\r | |
201 | },\r | |
202 | {\r | |
203 | EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,\r | |
204 | sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),\r | |
205 | EFI_ACPI_VLV_LPI_UNIQUE_ID3,\r | |
206 | {0,0},\r | |
207 | {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags\r | |
208 | EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger\r | |
209 | EFI_ACPI_VLV_LPI_MIN_RES3, //Residency\r | |
210 | EFI_ACPI_VLV_LPI_LATENCY3, //Latency\r | |
211 | EFI_ACPI_VLV_LPI_RES_COUNTER3, //ResidencyCounter\r | |
212 | EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency\r | |
213 | }\r | |
214 | }\r | |
215 | \r | |
216 | };\r | |
217 | \r | |
218 | \r | |
219 | VOID*\r | |
220 | ReferenceAcpiTable (\r | |
221 | VOID\r | |
222 | )\r | |
223 | {\r | |
224 | //\r | |
225 | // Reference the table being generated to prevent the optimizer from\r | |
226 | // removing the data structure from the executable\r | |
227 | //\r | |
228 | return (VOID*)&Lpit;\r | |
229 | }\r |