2 Header files and data structures needed by PCI Bus module.
4 Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 #ifndef _EFI_PCI_BUS_H_
17 #define _EFI_PCI_BUS_H_
21 #include <Protocol/LoadedImage.h>
22 #include <Protocol/PciHostBridgeResourceAllocation.h>
23 #include <Protocol/PciIo.h>
24 #include <Protocol/LoadFile2.h>
25 #include <Protocol/PciRootBridgeIo.h>
26 #include <Protocol/PciHotPlugRequest.h>
27 #include <Protocol/DevicePath.h>
28 #include <Protocol/PciPlatform.h>
29 #include <Protocol/PciHotPlugInit.h>
30 #include <Protocol/Decompress.h>
31 #include <Protocol/BusSpecificDriverOverride.h>
32 #include <Protocol/IncompatiblePciDeviceSupport.h>
33 #include <Protocol/PciOverride.h>
34 #include <Protocol/PciEnumerationComplete.h>
36 #include <Library/DebugLib.h>
37 #include <Library/UefiDriverEntryPoint.h>
38 #include <Library/BaseLib.h>
39 #include <Library/UefiLib.h>
40 #include <Library/BaseMemoryLib.h>
41 #include <Library/ReportStatusCodeLib.h>
42 #include <Library/MemoryAllocationLib.h>
43 #include <Library/UefiBootServicesTableLib.h>
44 #include <Library/DevicePathLib.h>
45 #include <Library/PcdLib.h>
46 #include <Library/PeCoffLib.h>
48 #include <IndustryStandard/Pci.h>
49 #include <IndustryStandard/PeImage.h>
50 #include <IndustryStandard/Acpi.h>
52 typedef struct _PCI_IO_DEVICE PCI_IO_DEVICE
;
53 typedef struct _PCI_BAR PCI_BAR
;
55 #define EFI_PCI_RID(Bus, Device, Function) (((UINT32)Bus << 8) + ((UINT32)Device << 3) + (UINT32)Function)
56 #define EFI_PCI_BUS_OF_RID(RID) ((UINT32)RID >> 8)
58 #define EFI_PCI_IOV_POLICY_ARI 0x0001
59 #define EFI_PCI_IOV_POLICY_SRIOV 0x0002
60 #define EFI_PCI_IOV_POLICY_MRIOV 0x0004
63 PciBarTypeUnknown
= 0,
75 #include "ComponentName.h"
77 #include "PciCommand.h"
78 #include "PciDeviceSupport.h"
79 #include "PciEnumerator.h"
80 #include "PciEnumeratorSupport.h"
81 #include "PciDriverOverride.h"
82 #include "PciRomTable.h"
83 #include "PciOptionRomSupport.h"
84 #include "PciPowerManagement.h"
85 #include "PciHotPlugSupport.h"
88 #define VGABASE1 0x3B0
89 #define VGALIMIT1 0x3BB
91 #define VGABASE2 0x3C0
92 #define VGALIMIT2 0x3DF
95 #define ISALIMIT 0x3FF
104 PCI_BAR_TYPE BarType
;
105 BOOLEAN BarTypeFixed
;
110 // defined in PCI Card Specification, 8.0
112 #define PCI_CARD_MEMORY_BASE_0 0x1C
113 #define PCI_CARD_MEMORY_LIMIT_0 0x20
114 #define PCI_CARD_MEMORY_BASE_1 0x24
115 #define PCI_CARD_MEMORY_LIMIT_1 0x28
116 #define PCI_CARD_IO_BASE_0_LOWER 0x2C
117 #define PCI_CARD_IO_BASE_0_UPPER 0x2E
118 #define PCI_CARD_IO_LIMIT_0_LOWER 0x30
119 #define PCI_CARD_IO_LIMIT_0_UPPER 0x32
120 #define PCI_CARD_IO_BASE_1_LOWER 0x34
121 #define PCI_CARD_IO_BASE_1_UPPER 0x36
122 #define PCI_CARD_IO_LIMIT_1_LOWER 0x38
123 #define PCI_CARD_IO_LIMIT_1_UPPER 0x3A
124 #define PCI_CARD_BRIDGE_CONTROL 0x3E
126 #define PCI_CARD_PREFETCHABLE_MEMORY_0_ENABLE BIT8
127 #define PCI_CARD_PREFETCHABLE_MEMORY_1_ENABLE BIT9
129 #define RB_IO_RANGE 1
130 #define RB_MEM32_RANGE 2
131 #define RB_PMEM32_RANGE 3
132 #define RB_MEM64_RANGE 4
133 #define RB_PMEM64_RANGE 5
137 #define PPB_IO_RANGE 2
138 #define PPB_MEM32_RANGE 3
139 #define PPB_PMEM32_RANGE 4
140 #define PPB_PMEM64_RANGE 5
141 #define PPB_MEM64_RANGE 0xFF
149 #define EFI_BRIDGE_IO32_DECODE_SUPPORTED 0x0001
150 #define EFI_BRIDGE_PMEM32_DECODE_SUPPORTED 0x0002
151 #define EFI_BRIDGE_PMEM64_DECODE_SUPPORTED 0x0004
152 #define EFI_BRIDGE_IO16_DECODE_SUPPORTED 0x0008
153 #define EFI_BRIDGE_PMEM_MEM_COMBINE_SUPPORTED 0x0010
154 #define EFI_BRIDGE_MEM64_DECODE_SUPPORTED 0x0020
155 #define EFI_BRIDGE_MEM32_DECODE_SUPPORTED 0x0040
157 #define PCI_MAX_HOST_BRIDGE_NUM 0x0010
160 // Define option for attribute
162 #define EFI_SET_SUPPORTS 0
163 #define EFI_SET_ATTRIBUTES 1
165 #define PCI_IO_DEVICE_SIGNATURE SIGNATURE_32 ('p', 'c', 'i', 'o')
167 struct _PCI_IO_DEVICE
{
170 EFI_PCI_IO_PROTOCOL PciIo
;
173 EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL PciDriverOverride
;
174 EFI_DEVICE_PATH_PROTOCOL
*DevicePath
;
175 EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
*PciRootBridgeIo
;
176 EFI_LOAD_FILE2_PROTOCOL LoadFile2
;
179 // PCI configuration space header type
184 // Bus number, Device number, Function number
188 UINT8 FunctionNumber
;
191 // BAR for this PCI Device
193 PCI_BAR PciBar
[PCI_MAX_BAR
];
196 // The bridge device this pci device is subject to
198 PCI_IO_DEVICE
*Parent
;
201 // A linked list for children Pci Device if it is bridge device
203 LIST_ENTRY ChildList
;
206 // TRUE if the PCI bus driver creates the handle for this PCI device
211 // TRUE if the PCI bus driver successfully allocates the resource required by
217 // The attribute this PCI device currently set
222 // The attributes this PCI device actually supports
227 // The resource decode the bridge supports
232 // TRUE if the ROM image is from the PCI Option ROM BAR
237 // The OptionRom Size
242 // The OptionRom Size
247 // TRUE if all OpROM (in device or in platform specific position) have been processed
249 BOOLEAN AllOpRomProcessed
;
252 // TRUE if there is any EFI driver in the OptionRom
257 // A list tracking reserved resource on a bridge device
259 LIST_ENTRY ReservedResourceList
;
262 // A list tracking image handle of platform specific overriding driver
264 LIST_ENTRY OptionRomDriverList
;
266 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*ResourcePaddingDescriptors
;
267 EFI_HPC_PADDING_ATTRIBUTES PaddingAttributes
;
270 // Bus number ranges for a PCI Root Bridge device
272 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*BusNumberRanges
;
278 UINT8 PciExpressCapabilityOffset
;
279 UINT32 AriCapabilityOffset
;
280 UINT32 SrIovCapabilityOffset
;
281 UINT32 MrIovCapabilityOffset
;
282 PCI_BAR VfPciBar
[PCI_MAX_BAR
];
283 UINT32 SystemPageSize
;
285 UINT16 ReservedBusNum
;
287 // Per PCI to PCI Bridge spec, I/O window is 4K aligned,
288 // but some chipsets support non-standard I/O window alignments less than 4K.
289 // This field is used to support this case.
291 UINT16 BridgeIoAlignment
;
294 #define PCI_IO_DEVICE_FROM_PCI_IO_THIS(a) \
295 CR (a, PCI_IO_DEVICE, PciIo, PCI_IO_DEVICE_SIGNATURE)
297 #define PCI_IO_DEVICE_FROM_PCI_DRIVER_OVERRIDE_THIS(a) \
298 CR (a, PCI_IO_DEVICE, PciDriverOverride, PCI_IO_DEVICE_SIGNATURE)
300 #define PCI_IO_DEVICE_FROM_LINK(a) \
301 CR (a, PCI_IO_DEVICE, Link, PCI_IO_DEVICE_SIGNATURE)
303 #define PCI_IO_DEVICE_FROM_LOAD_FILE2_THIS(a) \
304 CR (a, PCI_IO_DEVICE, LoadFile2, PCI_IO_DEVICE_SIGNATURE)
311 extern EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL
*gIncompatiblePciDeviceSupport
;
312 extern EFI_DRIVER_BINDING_PROTOCOL gPciBusDriverBinding
;
313 extern EFI_COMPONENT_NAME_PROTOCOL gPciBusComponentName
;
314 extern EFI_COMPONENT_NAME2_PROTOCOL gPciBusComponentName2
;
315 extern BOOLEAN gFullEnumeration
;
316 extern UINTN gPciHostBridgeNumber
;
317 extern EFI_HANDLE gPciHostBrigeHandles
[PCI_MAX_HOST_BRIDGE_NUM
];
318 extern UINT64 gAllOne
;
319 extern UINT64 gAllZero
;
320 extern EFI_PCI_PLATFORM_PROTOCOL
*gPciPlatformProtocol
;
321 extern EFI_PCI_OVERRIDE_PROTOCOL
*gPciOverrideProtocol
;
322 extern BOOLEAN mReserveIsaAliases
;
323 extern BOOLEAN mReserveVgaAliases
;
326 Macro that checks whether device is a GFX device.
328 @param _p Specified device.
330 @retval TRUE Device is a GFX device.
331 @retval FALSE Device is not a GFX device.
334 #define IS_PCI_GFX(_p) IS_CLASS2 (_p, PCI_CLASS_DISPLAY, PCI_CLASS_DISPLAY_OTHER)
337 Test to see if this driver supports ControllerHandle. Any ControllerHandle
338 than contains a gEfiPciRootBridgeIoProtocolGuid protocol can be supported.
340 @param This Protocol instance pointer.
341 @param Controller Handle of device to test.
342 @param RemainingDevicePath Optional parameter use to pick a specific child
345 @retval EFI_SUCCESS This driver supports this device.
346 @retval EFI_ALREADY_STARTED This driver is already running on this device.
347 @retval other This driver does not support this device.
352 PciBusDriverBindingSupported (
353 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
354 IN EFI_HANDLE Controller
,
355 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
359 Start this driver on ControllerHandle and enumerate Pci bus and start
360 all device under PCI bus.
362 @param This Protocol instance pointer.
363 @param Controller Handle of device to bind driver to.
364 @param RemainingDevicePath Optional parameter use to pick a specific child
367 @retval EFI_SUCCESS This driver is added to ControllerHandle.
368 @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle.
369 @retval other This driver does not support this device.
374 PciBusDriverBindingStart (
375 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
376 IN EFI_HANDLE Controller
,
377 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
381 Stop this driver on ControllerHandle. Support stopping any child handles
382 created by this driver.
384 @param This Protocol instance pointer.
385 @param Controller Handle of device to stop driver on.
386 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
387 children is zero stop the entire bus driver.
388 @param ChildHandleBuffer List of Child Handles to Stop.
390 @retval EFI_SUCCESS This driver is removed ControllerHandle.
391 @retval other This driver was not removed from this device.
396 PciBusDriverBindingStop (
397 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
398 IN EFI_HANDLE Controller
,
399 IN UINTN NumberOfChildren
,
400 IN EFI_HANDLE
*ChildHandleBuffer