[mirror_edk2.git] / IntelFrameworkPkg / Include / Protocol / PciHostBridgeResourceAllocation.h

/** @file\r
  This file declares Pci Host Bridge Resource Allocation Protocol\r
\r
  Copyright (c) 2007, Intel Corporation\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
  Module Name:  PciHostBridgeResourceAllocation.h\r
\r
  @par Revision Reference:\r
  This protocol is defined in Framework of EFI Pci Host Bridge Resource Allocation Protocol Spec\r
  Version 0.9\r
\r
**/\r
\r
#ifndef _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
#define _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
\r
#include <Protocol/PciRootBridgeIo.h>\r
\r
#define EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GUID \\r
  { 0xCF8034BE, 0x6768, 0x4d8b, {0xB7,0x39,0x7C,0xCE,0x68,0x3A,0x9F,0xBE }}\r
\r
\r
typedef struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL;\r
\r
\r
//\r
// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES\r
//\r
\r
// If this bit is set, then the PCI Root Bridge does not\r
// support separate windows for Non-prefetchable and Prefetchable\r
// memory. A PCI bus driver needs to include requests for Prefetchable\r
// memory in the Non-prefetchable memory pool.\r
//\r
#define EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM  1\r
\r
//\r
// If this bit is set, then the PCI Root Bridge supports\r
// 64 bit memory windows.  If this bit is not set,\r
// the PCI bus driver needs to include requests for 64 bit\r
// memory address in the corresponding 32 bit memory pool.\r
//\r
#define EFI_PCI_HOST_BRIDGE_MEM64_DECODE   2\r
\r
\r
//\r
// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE\r
//\r
typedef enum {\r
  EfiPciHostBridgeBeginEnumeration,\r
  EfiPciHostBridgeBeginBusAllocation,\r
  EfiPciHostBridgeEndBusAllocation,\r
  EfiPciHostBridgeBeginResourceAllocation,\r
  EfiPciHostBridgeAllocateResources,\r
  EfiPciHostBridgeSetResources,\r
  EfiPciHostBridgeFreeResources,\r
  EfiPciHostBridgeEndResourceAllocation\r
} EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE;\r
\r
//\r
// EfiPciHostBridgeBeginEnumeration\r
// Reset the host bridge PCI apertures and internal data structures.\r
// PCI enumerator should issue this notification before starting fresh\r
// enumeration process. Enumeration cannot be restarted after sending\r
// any other notification such as EfiPciHostBridgeBeginBusAllocation.\r
//\r
// EfiPciHostBridgeBeginBusAllocation\r
// The bus allocation phase is about to begin. No specific action\r
// is required here. This notification can be used to perform any\r
// chipset specific programming.\r
//\r
// EfiPciHostBridgeEndBusAllocation\r
// The bus allocation and bus programming phase is complete. No specific\r
// action is required here. This notification can be used to perform any\r
// chipset specific programming.\r
//\r
// EfiPciHostBridgeBeginResourceAllocation\r
// The resource allocation phase is about to begin.No specific action is\r
// required here. This notification can be used to perform any chipset specific programming.\r
//\r
// EfiPciHostBridgeAllocateResources\r
// Allocate resources per previously submitted requests for all the PCI Root\r
// Bridges. These resource settings are returned on the next call to\r
// GetProposedResources().\r
//\r
// EfiPciHostBridgeSetResources\r
// Program the Host Bridge hardware to decode previously allocated resources\r
// (proposed resources) for all the PCI Root Bridges.\r
//\r
// EfiPciHostBridgeFreeResources\r
// De-allocate previously allocated resources previously for all the PCI\r
// Root Bridges and reset the I/O and memory apertures to initial state.\r
//\r
// EfiPciHostBridgeEndResourceAllocation\r
// The resource allocation phase is completed.  No specific action is required\r
// here. This notification can be used to perform any chipset specific programming.\r
\r
\r
\r
//\r
// EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE\r
//\r
typedef enum {\r
  EfiPciBeforeChildBusEnumeration,\r
  EfiPciBeforeResourceCollection\r
} EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE;\r
\r
//\r
// EfiPciBeforeChildBusEnumeration\r
// This notification is only applicable to PCI-PCI bridges and\r
// indicates that the PCI enumerator is about to begin enumerating\r
// the bus behind the PCI-PCI Bridge. This notification is sent after\r
// the primary bus number, the secondary bus number and the subordinate\r
// bus number registers in the PCI-PCI Bridge are programmed to valid\r
// (not necessary final) values\r
//\r
// EfiPciBeforeResourceCollection\r
// This notification is sent before the PCI enumerator probes BAR registers\r
// for every valid PCI function.\r
//\r
\r
\r
/**\r
  Enter a certain phase of the PCI enumeration process\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance\r
  @param  Phase                 The phase during enumeration\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_OUT_OF_RESOURCES  If SubmitResources ( ) could not allocate resources\r
  @retval EFI_NOT_READY         This phase cannot be entered at this time\r
  @retval EFI_DEVICE_ERROR      SetResources failed due to HW error.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL         *This,\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE            Phase\r
  );\r
\r
\r
/**\r
  Return the device handle of the next PCI root bridge that is associated with\r
  this Host Bridge\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      Returns the device handle of the next PCI Root Bridge.\r
                                On input, it holds the RootBridgeHandle returned by the most\r
                                recent call to GetNextRootBridge().The handle for the first\r
                                PCI Root Bridge is returned if RootBridgeHandle is NULL on input\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL     *This,\r
  IN OUT EFI_HANDLE                                       *RootBridgeHandle\r
  );\r
\r
\r
/**\r
  Returns the attributes of a PCI Root Bridge.\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The device handle of the PCI Root Bridge\r
                                that the caller is interested in\r
  @param  Attribute             The pointer to attributes of the PCI Root Bridge\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_INVALID_PARAMETER Attributes is NULL\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL           *This,\r
  IN  EFI_HANDLE                                                RootBridgeHandle,\r
  OUT UINT64                                                    *Attributes\r
  );\r
\r
\r
/**\r
  This is the request from the PCI enumerator to set up\r
  the specified PCI Root Bridge for bus enumeration process.\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The PCI Root Bridge to be set up\r
  @param  Configuration         Pointer to the pointer to the PCI bus resource descriptor\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_DEVICE_ERROR      Request failed due to hardware error\r
  @retval EFI_OUT_OF_RESOURCES  Request failed due to lack of resources\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL           *This,\r
  IN  EFI_HANDLE                                                RootBridgeHandle,\r
  OUT VOID                                                      **Configuration\r
  );\r
\r
\r
/**\r
  This function programs the PCI Root Bridge hardware so that\r
  it decodes the specified PCI bus range\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The PCI Root Bridge whose bus range is to be programmed\r
  @param  Configuration         The pointer to the PCI bus resource descriptor\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_INVALID_PARAMETER Configuration is NULL\r
  @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
  @retval EFI_INVALID_PARAMETER Configuration contains one or more memory or IO ACPI resource descriptor\r
  @retval EFI_INVALID_PARAMETER Address Range Minimum or Address Range Length fields in Configuration\r
                                are invalid for this Root Bridge.\r
  @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid ACPI resource descriptor\r
  @retval EFI_DEVICE_ERROR      Request failed due to hardware error\r
  @retval EFI_OUT_OF_RESOURCES  Request failed due to lack of resources\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL          *This,\r
  IN EFI_HANDLE                                                RootBridgeHandle,\r
  IN VOID                                                      *Configuration\r
  );\r
\r
\r
/**\r
  Submits the I/O and memory resource requirements for the specified PCI Root Bridge\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The PCI Root Bridge whose I/O and memory resource requirements\r
                                are being submitted\r
  @param  Configuration         The pointer to the PCI I/O and PCI memory resource descriptor\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_INVALID_PARAMETER Configuration is NULL\r
  @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
  @retval EFI_INVALID_PARAMETER Configuration includes a resource descriptor of unsupported type\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL          *This,\r
  IN EFI_HANDLE                                                RootBridgeHandle,\r
  IN VOID                                                      *Configuration\r
  );\r
\r
\r
/**\r
  This function returns the proposed resource settings for the specified\r
  PCI Root Bridge\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The PCI Root Bridge handle\r
  @param  Configuration         The pointer to the pointer to the PCI I/O\r
                                and memory resource descriptor\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_DEVICE_ERROR      Request failed due to hardware error\r
  @retval EFI_OUT_OF_RESOURCES  Request failed due to lack of resources\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL           *This,\r
  IN  EFI_HANDLE                                                RootBridgeHandle,\r
  OUT VOID                                                      **Configuration\r
  );\r
\r
\r
\r
/**\r
  This function is called for all the PCI controllers that the PCI\r
  bus driver finds. Can be used to Preprogram the controller.\r
\r
  @param  This                  The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
  @param  RootBridgeHandle      The PCI Root Bridge handle\r
  @param  PciBusAddress         Address of the controller on the PCI bus\r
  @param  Phase                 The Phase during resource allocation\r
\r
  @retval EFI_SUCCESS           Success\r
  @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
  @retval EFI_DEVICE_ERROR      Device pre-initialization failed due to hardware error.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER) (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL            *This,\r
  IN  EFI_HANDLE                                                 RootBridgeHandle,\r
  IN  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS                PciAddress,\r
  IN  EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE               Phase\r
  );\r
\r
/**\r
  @par Protocol Description:\r
  Provides the basic interfaces to abstract a PCI host bridge resource allocation.\r
\r
  @param NotifyPhase\r
  The notification from the PCI bus enumerator that it is about to enter\r
  a certain phase during the enumeration process.\r
\r
  @param GetNextRootBridge\r
  Retrieves the device handle for the next PCI root bridge that is produced by the\r
  host bridge to which this instance of the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is attached.\r
\r
  @param GetAllocAttributes\r
  Retrieves the allocation-related attributes of a PCI root bridge.\r
\r
  @param StartBusEnumeration\r
  Sets up a PCI root bridge for bus enumeration.\r
\r
  @param SetBusNumbers\r
  Sets up the PCI root bridge so that it decodes a specific range of bus numbers.\r
\r
  @param SubmitResources\r
  Submits the resource requirements for the specified PCI root bridge.\r
\r
  @param GetProposedResources\r
  Returns the proposed resource assignment for the specified PCI root bridges.\r
\r
  @param PreprocessController\r
  Provides hooks from the PCI bus driver to every PCI controller\r
  (device/function) at various stages of the PCI enumeration process that\r
  allow the host bridge driver to preinitialize individual PCI controllers\r
  before enumeration.\r
\r
**/\r
struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL {\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE           NotifyPhase;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE   GetNextRootBridge;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES         GetAllocAttributes;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION  StartBusEnumeration;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS        SetBusNumbers;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES       SubmitResources;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES GetProposedResources;\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER  PreprocessController;\r
};\r
\r
extern EFI_GUID gEfiPciHostBridgeResourceAllocationProtocolGuid;\r
\r
#endif\r
Commit	Line	Data
79964ac8	1	/** @file\r
	2	This file declares Pci Host Bridge Resource Allocation Protocol\r
	3	\r
	4	Copyright (c) 2007, Intel Corporation\r
	5	All rights reserved. This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. 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	Module Name: PciHostBridgeResourceAllocation.h\r
	14	\r
	15	@par Revision Reference:\r
	16	This protocol is defined in Framework of EFI Pci Host Bridge Resource Allocation Protocol Spec\r
	17	Version 0.9\r
	18	\r
	19	**/\r
	20	\r
	21	#ifndef _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
	22	#define _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
	23	\r
226b35a9	24	#include <Protocol/PciRootBridgeIo.h>\r
226b35a9	25	\r
79964ac8	26	#define EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GUID \\r
	27	{ 0xCF8034BE, 0x6768, 0x4d8b, {0xB7,0x39,0x7C,0xCE,0x68,0x3A,0x9F,0xBE }}\r
	28	\r
	29	\r
	30	typedef struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL;\r
	31	\r
	32	\r
	33	//\r
	34	// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES\r
	35	//\r
	36	\r
	37	// If this bit is set, then the PCI Root Bridge does not\r
	38	// support separate windows for Non-prefetchable and Prefetchable\r
	39	// memory. A PCI bus driver needs to include requests for Prefetchable\r
	40	// memory in the Non-prefetchable memory pool.\r
	41	//\r
	42	#define EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM 1\r
	43	\r
	44	//\r
	45	// If this bit is set, then the PCI Root Bridge supports\r
	46	// 64 bit memory windows. If this bit is not set,\r
	47	// the PCI bus driver needs to include requests for 64 bit\r
	48	// memory address in the corresponding 32 bit memory pool.\r
	49	//\r
	50	#define EFI_PCI_HOST_BRIDGE_MEM64_DECODE 2\r
	51	\r
	52	\r
	53	//\r
	54	// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE\r
	55	//\r
	56	typedef enum {\r
	57	EfiPciHostBridgeBeginEnumeration,\r
	58	EfiPciHostBridgeBeginBusAllocation,\r
	59	EfiPciHostBridgeEndBusAllocation,\r
	60	EfiPciHostBridgeBeginResourceAllocation,\r
	61	EfiPciHostBridgeAllocateResources,\r
	62	EfiPciHostBridgeSetResources,\r
	63	EfiPciHostBridgeFreeResources,\r
	64	EfiPciHostBridgeEndResourceAllocation\r
	65	} EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE;\r
	66	\r
	67	//\r
	68	// EfiPciHostBridgeBeginEnumeration\r
	69	// Reset the host bridge PCI apertures and internal data structures.\r
	70	// PCI enumerator should issue this notification before starting fresh\r
	71	// enumeration process. Enumeration cannot be restarted after sending\r
	72	// any other notification such as EfiPciHostBridgeBeginBusAllocation.\r
	73	//\r
	74	// EfiPciHostBridgeBeginBusAllocation\r
	75	// The bus allocation phase is about to begin. No specific action\r
	76	// is required here. This notification can be used to perform any\r
	77	// chipset specific programming.\r
	78	//\r
	79	// EfiPciHostBridgeEndBusAllocation\r
	80	// The bus allocation and bus programming phase is complete. No specific\r
	81	// action is required here. This notification can be used to perform any\r
	82	// chipset specific programming.\r
	83	//\r
	84	// EfiPciHostBridgeBeginResourceAllocation\r
	85	// The resource allocation phase is about to begin.No specific action is\r
	86	// required here. This notification can be used to perform any chipset specific programming.\r
	87	//\r
	88	// EfiPciHostBridgeAllocateResources\r
	89	// Allocate resources per previously submitted requests for all the PCI Root\r
90	// Bridges. These resource settings are returned on the next call to\r
91	// GetProposedResources().\r
92	//\r
93	// EfiPciHostBridgeSetResources\r
94	// Program the Host Bridge hardware to decode previously allocated resources\r
95	// (proposed resources) for all the PCI Root Bridges.\r
96	//\r
97	// EfiPciHostBridgeFreeResources\r
98	// De-allocate previously allocated resources previously for all the PCI\r
99	// Root Bridges and reset the I/O and memory apertures to initial state.\r
100	//\r
101	// EfiPciHostBridgeEndResourceAllocation\r
102	// The resource allocation phase is completed. No specific action is required\r
103	// here. This notification can be used to perform any chipset specific programming.\r
104	\r
105	\r
106	\r
107	//\r
108	// EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE\r
109	//\r
110	typedef enum {\r
111	EfiPciBeforeChildBusEnumeration,\r
112	EfiPciBeforeResourceCollection\r
113	} EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE;\r
114	\r
115	//\r
116	// EfiPciBeforeChildBusEnumeration\r
117	// This notification is only applicable to PCI-PCI bridges and\r
118	// indicates that the PCI enumerator is about to begin enumerating\r
119	// the bus behind the PCI-PCI Bridge. This notification is sent after\r
120	// the primary bus number, the secondary bus number and the subordinate\r
121	// bus number registers in the PCI-PCI Bridge are programmed to valid\r
122	// (not necessary final) values\r
123	//\r
124	// EfiPciBeforeResourceCollection\r
125	// This notification is sent before the PCI enumerator probes BAR registers\r
126	// for every valid PCI function.\r
127	//\r
128	\r
129	\r
130	/**\r
131	Enter a certain phase of the PCI enumeration process\r
132	\r
133	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance\r
134	@param Phase The phase during enumeration\r
135	\r
136	@retval EFI_SUCCESS Success\r
137	@retval EFI_OUT_OF_RESOURCES If SubmitResources ( ) could not allocate resources\r
138	@retval EFI_NOT_READY This phase cannot be entered at this time\r
139	@retval EFI_DEVICE_ERROR SetResources failed due to HW error.\r
140	\r
141	**/\r
142	typedef\r
143	EFI_STATUS\r
144	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE) (\r
145	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
146	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase\r
147	);\r
148	\r
149	\r
150	/**\r
151	Return the device handle of the next PCI root bridge that is associated with\r
152	this Host Bridge\r
153	\r
154	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
155	@param RootBridgeHandle Returns the device handle of the next PCI Root Bridge.\r
156	On input, it holds the RootBridgeHandle returned by the most\r
157	recent call to GetNextRootBridge().The handle for the first\r
158	PCI Root Bridge is returned if RootBridgeHandle is NULL on input\r
159	\r
160	@retval EFI_SUCCESS Success\r
161	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
162	\r
163	**/\r
164	typedef\r
165	EFI_STATUS\r
166	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE) (\r
167	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
168	IN OUT EFI_HANDLE *RootBridgeHandle\r
169	);\r
170	\r
171	\r
172	/**\r
173	Returns the attributes of a PCI Root Bridge.\r
174	\r
175	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
176	@param RootBridgeHandle The device handle of the PCI Root Bridge\r
177	that the caller is interested in\r
178	@param Attribute The pointer to attributes of the PCI Root Bridge\r
179	\r
180	@retval EFI_SUCCESS Success\r
181	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
182	@retval EFI_INVALID_PARAMETER Attributes is NULL\r
183	\r
184	**/\r
185	typedef\r
186	EFI_STATUS\r
187	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES) (\r
188	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
189	IN EFI_HANDLE RootBridgeHandle,\r
190	OUT UINT64 *Attributes\r
191	);\r
192	\r
193	\r
194	/**\r
195	This is the request from the PCI enumerator to set up\r
196	the specified PCI Root Bridge for bus enumeration process.\r
197	\r
198	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
199	@param RootBridgeHandle The PCI Root Bridge to be set up\r
200	@param Configuration Pointer to the pointer to the PCI bus resource descriptor\r
201	\r
202	@retval EFI_SUCCESS Success\r
203	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
204	@retval EFI_DEVICE_ERROR Request failed due to hardware error\r
205	@retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
206	\r
207	**/\r
208	typedef\r
209	EFI_STATUS\r
210	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION) (\r
211	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
212	IN EFI_HANDLE RootBridgeHandle,\r
213	OUT VOID **Configuration\r
214	);\r
215	\r
216	\r
217	/**\r
218	This function programs the PCI Root Bridge hardware so that\r
219	it decodes the specified PCI bus range\r
220	\r
221	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
222	@param RootBridgeHandle The PCI Root Bridge whose bus range is to be programmed\r
223	@param Configuration The pointer to the PCI bus resource descriptor\r
224	\r
225	@retval EFI_SUCCESS Success\r
226	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
227	@retval EFI_INVALID_PARAMETER Configuration is NULL\r
228	@retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
229	@retval EFI_INVALID_PARAMETER Configuration contains one or more memory or IO ACPI resource descriptor\r
230	@retval EFI_INVALID_PARAMETER Address Range Minimum or Address Range Length fields in Configuration\r
231	are invalid for this Root Bridge.\r
232	@retval EFI_INVALID_PARAMETER Configuration contains one or more invalid ACPI resource descriptor\r
233	@retval EFI_DEVICE_ERROR Request failed due to hardware error\r
234	@retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
235	\r
236	**/\r
237	typedef\r
238	EFI_STATUS\r
239	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS) (\r
240	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
241	IN EFI_HANDLE RootBridgeHandle,\r
242	IN VOID *Configuration\r
243	);\r
244	\r
245	\r
246	/**\r
247	Submits the I/O and memory resource requirements for the specified PCI Root Bridge\r
248	\r
249	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
250	@param RootBridgeHandle The PCI Root Bridge whose I/O and memory resource requirements\r
251	are being submitted\r
252	@param Configuration The pointer to the PCI I/O and PCI memory resource descriptor\r
253	\r
254	@retval EFI_SUCCESS Success\r
255	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
256	@retval EFI_INVALID_PARAMETER Configuration is NULL\r
257	@retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
258	@retval EFI_INVALID_PARAMETER Configuration includes a resource descriptor of unsupported type\r
259	\r
260	**/\r
261	typedef\r
262	EFI_STATUS\r
263	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES) (\r
264	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
265	IN EFI_HANDLE RootBridgeHandle,\r
266	IN VOID *Configuration\r
267	);\r
268	\r
269	\r
270	/**\r
271	This function returns the proposed resource settings for the specified\r
272	PCI Root Bridge\r
273	\r
274	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
275	@param RootBridgeHandle The PCI Root Bridge handle\r
276	@param Configuration The pointer to the pointer to the PCI I/O\r
277	and memory resource descriptor\r
278	\r
279	@retval EFI_SUCCESS Success\r
280	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
281	@retval EFI_DEVICE_ERROR Request failed due to hardware error\r
282	@retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
283	\r
284	**/\r
285	typedef\r
286	EFI_STATUS\r
287	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES) (\r
288	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
289	IN EFI_HANDLE RootBridgeHandle,\r
290	OUT VOID **Configuration\r
291	);\r
292	\r
293	\r
294	\r
295	/**\r
296	This function is called for all the PCI controllers that the PCI\r
297	bus driver finds. Can be used to Preprogram the controller.\r
298	\r
299	@param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
300	@param RootBridgeHandle The PCI Root Bridge handle\r
301	@param PciBusAddress Address of the controller on the PCI bus\r
302	@param Phase The Phase during resource allocation\r
303	\r
304	@retval EFI_SUCCESS Success\r
305	@retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
306	@retval EFI_DEVICE_ERROR Device pre-initialization failed due to hardware error.\r
307	\r
308	**/\r
309	typedef\r
310	EFI_STATUS\r
311	(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER) (\r
312	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
313	IN EFI_HANDLE RootBridgeHandle,\r
314	IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,\r
315	IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase\r
316	);\r
317	\r
318	/**\r
319	@par Protocol Description:\r
320	Provides the basic interfaces to abstract a PCI host bridge resource allocation.\r
321	\r
322	@param NotifyPhase\r
323	The notification from the PCI bus enumerator that it is about to enter\r
324	a certain phase during the enumeration process.\r
325	\r
326	@param GetNextRootBridge\r
327	Retrieves the device handle for the next PCI root bridge that is produced by the\r
328	host bridge to which this instance of the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is attached.\r
329	\r
330	@param GetAllocAttributes\r
331	Retrieves the allocation-related attributes of a PCI root bridge.\r
332	\r
333	@param StartBusEnumeration\r
334	Sets up a PCI root bridge for bus enumeration.\r
335	\r
336	@param SetBusNumbers\r
337	Sets up the PCI root bridge so that it decodes a specific range of bus numbers.\r
338	\r
339	@param SubmitResources\r
340	Submits the resource requirements for the specified PCI root bridge.\r
341	\r
342	@param GetProposedResources\r
343	Returns the proposed resource assignment for the specified PCI root bridges.\r
344	\r
345	@param PreprocessController\r
346	Provides hooks from the PCI bus driver to every PCI controller\r
347	(device/function) at various stages of the PCI enumeration process that\r
348	allow the host bridge driver to preinitialize individual PCI controllers\r
349	before enumeration.\r
350	\r
351	**/\r
352	struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL {\r
353	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE NotifyPhase;\r
354	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE GetNextRootBridge;\r
355	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES GetAllocAttributes;\r
356	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION StartBusEnumeration;\r
357	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS SetBusNumbers;\r
358	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES SubmitResources;\r
359	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES GetProposedResources;\r
360	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER PreprocessController;\r
361	};\r
362	\r
363	extern EFI_GUID gEfiPciHostBridgeResourceAllocationProtocolGuid;\r
364	\r
365	#endif\r