5 * AMD AGESA CPU IO Cstate feature support code.
7 * Contains code that declares the AGESA CPU IO Cstate related APIs
9 * @xrefitem bom "File Content Label" "Release Content"
11 * @e sub-project: CPU/Feature
12 * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 02:16:51 -0700 (Wed, 22 Dec 2010) $
15 ******************************************************************************
17 * Copyright (C) 2012 Advanced Micro Devices, Inc.
18 * All rights reserved.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions are met:
22 * * Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * * Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * * Neither the name of Advanced Micro Devices, Inc. nor the names of
28 * its contributors may be used to endorse or promote products derived
29 * from this software without specific prior written permission.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
33 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
34 * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
35 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
36 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
38 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
39 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
40 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 ******************************************************************************
45 #ifndef _CPU_IO_CSTATE_H_
46 #define _CPU_IO_CSTATE_H_
48 /*----------------------------------------------------------------------------------------
49 * M I X E D (Definitions And Macros / Typedefs, Structures, Enums)
50 *----------------------------------------------------------------------------------------
52 // Forward declaration needed for multi-structure mutual references
53 AGESA_FORWARD_DECLARATION (IO_CSTATE_FAMILY_SERVICES);
55 /*----------------------------------------------------------------------------------------
56 * D E F I N I T I O N S A N D M A C R O S
57 *----------------------------------------------------------------------------------------
59 // Defines for ACPI C-State Objects
60 #define CST_NAME__ '_'
61 #define CST_NAME_C 'C'
62 #define CST_NAME_S 'S'
63 #define CST_NAME_T 'T'
64 #define CST_LENGTH (CST_BODY_SIZE - 1)
65 #define CST_NUM_OF_ELEMENTS 0x02
66 #define CST_COUNT 0x01
67 #define CST_PKG_LENGTH (CST_BODY_SIZE - 6) // CST_BODY_SIZE - PkgHeader - Count Buffer
68 #define CST_PKG_ELEMENTS 0x04
69 #define CST_SUBPKG_LENGTH 0x14
70 #define CST_SUBPKG_ELEMENTS 0x0A
71 #define CST_GDR_LENGTH 0x000C
72 #define CST_C1_TYPE 0x01
73 #define CST_C2_TYPE 0x02
75 #define CSD_NAME_D 'D'
76 #define CSD_COORD_TYPE_HW_ALL 0xFE
78 /*----------------------------------------------------------------------------------------
79 * T Y P E D E F S A N D S T R U C T U R E S
80 *----------------------------------------------------------------------------------------
82 /* AML code definition */
85 typedef struct _CST_HEADER_STRUCT {
86 UINT8 NameOpcode; ///< Name Opcode
87 UINT8 CstName_a__; ///< String "_"
88 UINT8 CstName_a_C; ///< String "C"
89 UINT8 CstName_a_S; ///< String "S"
90 UINT8 CstName_a_T; ///< String "T"
92 #define CST_HEADER_SIZE 5
95 typedef struct _CST_BODY_STRUCT {
96 UINT8 PkgOpcode; ///< Package Opcode
97 UINT8 PkgLength; ///< Package Length
98 UINT8 PkgElements; ///< Number of Elements
99 UINT8 BytePrefix; ///< Byte Prefix Opcode
100 UINT8 Count; ///< Number of Cstate info packages
101 UINT8 PkgOpcode2; ///< Package Opcode
102 UINT8 PkgLength2; ///< Package Length
103 UINT8 PkgElements2; ///< Number of Elements
104 UINT8 BufferOpcode; ///< Buffer Opcode
105 UINT8 BufferLength; ///< Buffer Length
106 UINT8 BufferElements; ///< Number of Elements
107 UINT8 BufferOpcode2; ///< Buffer Opcode
108 UINT8 GdrOpcode; ///< Generic Register Descriptor Opcode
109 UINT16 GdrLength; ///< Descriptor Length
110 UINT8 AddrSpaceId; ///< Address Space ID
111 UINT8 RegBitWidth; ///< Register Bit Width
112 UINT8 RegBitOffset; ///< Register Bit Offset
113 UINT8 AddressSize; ///< Address Size
114 UINT64 RegisterAddr; ///< Register Address
115 UINT16 EndTag; ///< End Tag Descriptor
116 UINT8 BytePrefix2; ///< Byte Prefix Opcode
117 UINT8 Type; ///< Type
118 UINT8 WordPrefix; ///< Word Prefix Opcode
119 UINT16 Latency; ///< Latency
120 UINT8 DWordPrefix; ///< Dword Prefix Opcode
121 UINT32 Power; ///< Power
123 #define CST_BODY_SIZE 39
126 typedef struct _CSD_HEADER_STRUCT {
127 UINT8 NameOpcode; ///< Name Opcode
128 UINT8 CsdName_a__; ///< String "_"
129 UINT8 CsdName_a_C; ///< String "C"
130 UINT8 CsdName_a_S; ///< String "S"
131 UINT8 CsdName_a_D; ///< String "D"
133 #define CSD_HEADER_SIZE 5
136 typedef struct _CSD_BODY_STRUCT {
137 UINT8 PkgOpcode; ///< Package Opcode
138 UINT8 PkgLength; ///< Package Length
139 UINT8 PkgElements; ///< Number of Elements
140 UINT8 PkgOpcode2; ///< Package Opcode
141 UINT8 PkgLength2; ///< Package Length
142 UINT8 PkgElements2; ///< Number of Elements
143 UINT8 BytePrefix; ///< Byte Prefix Opcode
144 UINT8 NumEntries; ///< Number of Entries
145 UINT8 BytePrefix2; ///< Byte Prefix Opcode
146 UINT8 Revision; ///< Revision
147 UINT8 DWordPrefix; ///< DWord Prefix Opcode
148 UINT32 Domain; ///< Dependency Domain Number
149 UINT8 DWordPrefix2; ///< DWord Prefix Opcode
150 UINT32 CoordType; ///< Coordination Type
151 UINT8 DWordPrefix3; ///< Dword Prefix Opcode
152 UINT32 NumProcessors; ///< Number of Processors in the Domain
153 UINT8 DWordPrefix4; ///< Dword Prefix Opcode
154 UINT32 Index; ///< Index of C-State entry for which dependency applies
156 #define CSD_BODY_SIZE 30
158 /// input for create _CST
159 typedef struct _ACPI_CST_CREATE_INPUT {
160 IO_CSTATE_FAMILY_SERVICES *IoCstateServices; ///< Family service of IoCstate
161 UINT8 LocalApicId; ///< Local Apic for create _CST
162 VOID **PstateAcpiBufferPtr; ///< buffer for fill _CST
163 } ACPI_CST_CREATE_INPUT ;
165 /// input for get _CST
166 typedef struct _ACPI_CST_GET_INPUT {
167 IO_CSTATE_FAMILY_SERVICES *IoCstateServices; ///< Family service of IoCstate
168 PLATFORM_CONFIGURATION *PlatformConfig; ///< platform config
169 UINT32 *CStateAcpiObjSizePtr; ///< Point to size of _CST
170 } ACPI_CST_GET_INPUT ;
173 /*---------------------------------------------------------------------------------------*/
175 * Family specific call to check if IO Cstate is supported.
177 * @param[in] IoCstateServices IO Cstate services.
178 * @param[in] Socket Zero-based socket number.
179 * @param[in] StdHeader Config Handle for library, services.
181 * @retval TRUE IO Cstate is supported.
182 * @retval FALSE IO Cstate is not supported.
185 typedef BOOLEAN F_IO_CSTATE_IS_SUPPORTED (
186 IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
188 IN AMD_CONFIG_PARAMS *StdHeader
191 /*---------------------------------------------------------------------------------------*/
193 * Family specific call to enable IO Cstate.
195 * @param[in] IoCstateServices IO Cstate services.
196 * @param[in] EntryPoint Timepoint designator.
197 * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
198 * @param[in] StdHeader Config Handle for library, services.
200 * @return Family specific error value.
203 typedef AGESA_STATUS F_IO_CSTATE_INIT (
204 IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
205 IN UINT64 EntryPoint,
206 IN PLATFORM_CONFIGURATION *PlatformConfig,
207 IN AMD_CONFIG_PARAMS *StdHeader
210 /*---------------------------------------------------------------------------------------*/
212 * Family specific call to return the size of ACPI C-State Objects
214 * @param[in] IoCstateServices IO Cstate services.
215 * @param[in] PlatformConfig Contains the runtime modifiable feature input data
216 * @param[in] StdHeader Config Handle for library, services.
218 * @retval Size of ACPI C-State Objects
221 typedef UINT32 F_IO_CSTATE_GET_CST_SIZE (
222 IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
223 IN PLATFORM_CONFIGURATION *PlatformConfig,
224 IN AMD_CONFIG_PARAMS *StdHeader
227 /*---------------------------------------------------------------------------------------*/
229 * Family specific call to create ACPI C-State Objects
231 * @param[in] IoCstateServices IO Cstate services.
232 * @param[in] LocalApicId Local Apic Id
233 * @param[in, out] PstateAcpiBufferPtr Pointer to Pstate data buffer
234 * @param[in] StdHeader Config Handle for library, services.
237 typedef VOID F_IO_CSTATE_CREATE_CST (
238 IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
239 IN UINT8 LocalApicId,
240 IN OUT VOID **PstateAcpiBufferPtr,
241 IN AMD_CONFIG_PARAMS *StdHeader
244 /*---------------------------------------------------------------------------------------*/
246 * Family specific call to check whether CSD object should be created.
248 * @param[in] IoCstateServices IO Cstate services.
249 * @param[in] StdHeader Config Handle for library, services.
251 * @retval TRUE CSD Object should be created.
252 * @retval FALSE CSD Object should not be created.
255 typedef BOOLEAN F_IO_CSTATE_IS_CSD_GENERATED (
256 IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices,
257 IN AMD_CONFIG_PARAMS *StdHeader
260 /// Reference to a Method
261 typedef F_IO_CSTATE_IS_SUPPORTED *PF_IO_CSTATE_IS_SUPPORTED;
262 typedef F_IO_CSTATE_INIT *PF_IO_CSTATE_INIT;
263 typedef F_IO_CSTATE_GET_CST_SIZE *PF_IO_CSTATE_GET_CST_SIZE;
264 typedef F_IO_CSTATE_CREATE_CST *PF_IO_CSTATE_CREATE_CST;
265 typedef F_IO_CSTATE_IS_CSD_GENERATED *PF_IO_CSTATE_IS_CSD_GENERATED;
268 * Provide the interface to the IO Cstate Family Specific Services.
270 * Use the methods or data in this struct to adapt the feature code to a specific cpu family or model (or stepping!).
271 * Each supported Family must provide an implementation for all methods in this interface, even if the
272 * implementation is a CommonReturn().
274 struct _IO_CSTATE_FAMILY_SERVICES {
275 UINT16 Revision; ///< Interface version
277 PF_IO_CSTATE_IS_SUPPORTED IsIoCstateSupported; ///< Method: Family specific call to check if IO Cstate is supported.
278 PF_IO_CSTATE_INIT InitializeIoCstate; ///< Method: Family specific call to enable IO Cstate
279 PF_IO_CSTATE_GET_CST_SIZE GetAcpiCstObj; ///< Method: Family specific call to return the size of ACPI CST objects.
280 PF_IO_CSTATE_CREATE_CST CreateAcpiCstObj; ///< Method: Family specific call to create ACPI CST object
281 PF_IO_CSTATE_IS_CSD_GENERATED IsCsdObjGenerated; ///< Method: Family specific call to check whether CSD Object should be created.
284 #endif // _CPU_IO_CSTATE_H_