2 Header files and data structures needed by PCI Bus module.
4 Copyright (c) 2006 - 2011, 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>
35 #include <Protocol/DevicePathToText.h>
37 #include <Library/DebugLib.h>
38 #include <Library/UefiDriverEntryPoint.h>
39 #include <Library/BaseLib.h>
40 #include <Library/UefiLib.h>
41 #include <Library/BaseMemoryLib.h>
42 #include <Library/ReportStatusCodeLib.h>
43 #include <Library/MemoryAllocationLib.h>
44 #include <Library/UefiBootServicesTableLib.h>
45 #include <Library/DevicePathLib.h>
46 #include <Library/PcdLib.h>
47 #include <Library/PeCoffLib.h>
49 #include <IndustryStandard/Pci.h>
50 #include <IndustryStandard/PeImage.h>
51 #include <IndustryStandard/Acpi.h>
53 typedef struct _PCI_IO_DEVICE PCI_IO_DEVICE
;
54 typedef struct _PCI_BAR PCI_BAR
;
56 #define EFI_PCI_RID(Bus, Device, Function) (((UINT32)Bus << 8) + ((UINT32)Device << 3) + (UINT32)Function)
57 #define EFI_PCI_BUS_OF_RID(RID) ((UINT32)RID >> 8)
59 #define EFI_PCI_IOV_POLICY_ARI 0x0001
60 #define EFI_PCI_IOV_POLICY_SRIOV 0x0002
61 #define EFI_PCI_IOV_POLICY_MRIOV 0x0004
64 PciBarTypeUnknown
= 0,
76 #include "ComponentName.h"
78 #include "PciCommand.h"
79 #include "PciDeviceSupport.h"
80 #include "PciEnumerator.h"
81 #include "PciEnumeratorSupport.h"
82 #include "PciDriverOverride.h"
83 #include "PciRomTable.h"
84 #include "PciOptionRomSupport.h"
85 #include "PciPowerManagement.h"
86 #include "PciHotPlugSupport.h"
89 #define VGABASE1 0x3B0
90 #define VGALIMIT1 0x3BB
92 #define VGABASE2 0x3C0
93 #define VGALIMIT2 0x3DF
96 #define ISALIMIT 0x3FF
105 PCI_BAR_TYPE BarType
;
106 BOOLEAN Prefetchable
;
112 // defined in PCI Card Specification, 8.0
114 #define PCI_CARD_MEMORY_BASE_0 0x1C
115 #define PCI_CARD_MEMORY_LIMIT_0 0x20
116 #define PCI_CARD_MEMORY_BASE_1 0x24
117 #define PCI_CARD_MEMORY_LIMIT_1 0x28
118 #define PCI_CARD_IO_BASE_0_LOWER 0x2C
119 #define PCI_CARD_IO_BASE_0_UPPER 0x2E
120 #define PCI_CARD_IO_LIMIT_0_LOWER 0x30
121 #define PCI_CARD_IO_LIMIT_0_UPPER 0x32
122 #define PCI_CARD_IO_BASE_1_LOWER 0x34
123 #define PCI_CARD_IO_BASE_1_UPPER 0x36
124 #define PCI_CARD_IO_LIMIT_1_LOWER 0x38
125 #define PCI_CARD_IO_LIMIT_1_UPPER 0x3A
126 #define PCI_CARD_BRIDGE_CONTROL 0x3E
128 #define PCI_CARD_PREFETCHABLE_MEMORY_0_ENABLE BIT8
129 #define PCI_CARD_PREFETCHABLE_MEMORY_1_ENABLE BIT9
131 #define RB_IO_RANGE 1
132 #define RB_MEM32_RANGE 2
133 #define RB_PMEM32_RANGE 3
134 #define RB_MEM64_RANGE 4
135 #define RB_PMEM64_RANGE 5
139 #define PPB_IO_RANGE 2
140 #define PPB_MEM32_RANGE 3
141 #define PPB_PMEM32_RANGE 4
142 #define PPB_PMEM64_RANGE 5
143 #define PPB_MEM64_RANGE 0xFF
151 #define EFI_BRIDGE_IO32_DECODE_SUPPORTED 0x0001
152 #define EFI_BRIDGE_PMEM32_DECODE_SUPPORTED 0x0002
153 #define EFI_BRIDGE_PMEM64_DECODE_SUPPORTED 0x0004
154 #define EFI_BRIDGE_IO16_DECODE_SUPPORTED 0x0008
155 #define EFI_BRIDGE_PMEM_MEM_COMBINE_SUPPORTED 0x0010
156 #define EFI_BRIDGE_MEM64_DECODE_SUPPORTED 0x0020
157 #define EFI_BRIDGE_MEM32_DECODE_SUPPORTED 0x0040
159 #define PCI_MAX_HOST_BRIDGE_NUM 0x0010
162 // Define option for attribute
164 #define EFI_SET_SUPPORTS 0
165 #define EFI_SET_ATTRIBUTES 1
167 #define PCI_IO_DEVICE_SIGNATURE SIGNATURE_32 ('p', 'c', 'i', 'o')
169 struct _PCI_IO_DEVICE
{
172 EFI_PCI_IO_PROTOCOL PciIo
;
175 EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL PciDriverOverride
;
176 EFI_DEVICE_PATH_PROTOCOL
*DevicePath
;
177 EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
*PciRootBridgeIo
;
178 EFI_LOAD_FILE2_PROTOCOL LoadFile2
;
181 // PCI configuration space header type
186 // Bus number, Device number, Function number
190 UINT8 FunctionNumber
;
193 // BAR for this PCI Device
195 PCI_BAR PciBar
[PCI_MAX_BAR
];
198 // The bridge device this pci device is subject to
200 PCI_IO_DEVICE
*Parent
;
203 // A linked list for children Pci Device if it is bridge device
205 LIST_ENTRY ChildList
;
208 // TURE if the PCI bus driver creates the handle for this PCI device
213 // TRUE if the PCI bus driver successfully allocates the resource required by
219 // The attribute this PCI device currently set
224 // The attributes this PCI device actually supports
229 // The resource decode the bridge supports
234 // TRUE if the ROM image is from the PCI Option ROM BAR
239 // The OptionRom Size
244 // The OptionRom Size
249 // TRUE if all OpROM (in device or in platform specific position) have been processed
251 BOOLEAN AllOpRomProcessed
;
254 // TRUE if there is any EFI driver in the OptionRom
259 // A list tracking reserved resource on a bridge device
261 LIST_ENTRY ReservedResourceList
;
264 // A list tracking image handle of platform specific overriding driver
266 LIST_ENTRY OptionRomDriverList
;
268 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*ResourcePaddingDescriptors
;
269 EFI_HPC_PADDING_ATTRIBUTES PaddingAttributes
;
275 UINT8 PciExpressCapabilityOffset
;
276 UINT32 AriCapabilityOffset
;
277 UINT32 SrIovCapabilityOffset
;
278 UINT32 MrIovCapabilityOffset
;
279 PCI_BAR VfPciBar
[PCI_MAX_BAR
];
280 UINT32 SystemPageSize
;
282 UINT16 ReservedBusNum
;
284 // Per PCI to PCI Bridge spec, I/O window is 4K aligned,
285 // but some chipsets support non-stardard I/O window aligments less than 4K.
286 // This field is used to support this case.
288 UINT16 BridgeIoAlignment
;
291 #define PCI_IO_DEVICE_FROM_PCI_IO_THIS(a) \
292 CR (a, PCI_IO_DEVICE, PciIo, PCI_IO_DEVICE_SIGNATURE)
294 #define PCI_IO_DEVICE_FROM_PCI_DRIVER_OVERRIDE_THIS(a) \
295 CR (a, PCI_IO_DEVICE, PciDriverOverride, PCI_IO_DEVICE_SIGNATURE)
297 #define PCI_IO_DEVICE_FROM_LINK(a) \
298 CR (a, PCI_IO_DEVICE, Link, PCI_IO_DEVICE_SIGNATURE)
300 #define PCI_IO_DEVICE_FROM_LOAD_FILE2_THIS(a) \
301 CR (a, PCI_IO_DEVICE, LoadFile2, PCI_IO_DEVICE_SIGNATURE)
308 extern EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL
*gEfiIncompatiblePciDeviceSupport
;
309 extern EFI_DRIVER_BINDING_PROTOCOL gPciBusDriverBinding
;
310 extern EFI_COMPONENT_NAME_PROTOCOL gPciBusComponentName
;
311 extern EFI_COMPONENT_NAME2_PROTOCOL gPciBusComponentName2
;
312 extern BOOLEAN gFullEnumeration
;
313 extern UINTN gPciHostBridgeNumber
;
314 extern EFI_HANDLE gPciHostBrigeHandles
[PCI_MAX_HOST_BRIDGE_NUM
];
315 extern UINT64 gAllOne
;
316 extern UINT64 gAllZero
;
317 extern EFI_PCI_PLATFORM_PROTOCOL
*gPciPlatformProtocol
;
318 extern EFI_PCI_OVERRIDE_PROTOCOL
*gPciOverrideProtocol
;
319 extern BOOLEAN mReserveIsaAliases
;
320 extern BOOLEAN mReserveVgaAliases
;
323 Macro that checks whether device is a GFX device.
325 @param _p Specified device.
327 @retval TRUE Device is a a GFX device.
328 @retval FALSE Device is not a a GFX device.
331 #define IS_PCI_GFX(_p) IS_CLASS2 (_p, PCI_CLASS_DISPLAY, PCI_CLASS_DISPLAY_OTHER)
334 Test to see if this driver supports ControllerHandle. Any ControllerHandle
335 than contains a gEfiPciRootBridgeIoProtocolGuid protocol can be supported.
337 @param This Protocol instance pointer.
338 @param Controller Handle of device to test.
339 @param RemainingDevicePath Optional parameter use to pick a specific child.
342 @retval EFI_SUCCESS This driver supports this device.
343 @retval EFI_ALREADY_STARTED This driver is already running on this device.
344 @retval other This driver does not support this device.
349 PciBusDriverBindingSupported (
350 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
351 IN EFI_HANDLE Controller
,
352 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
356 Start this driver on ControllerHandle and enumerate Pci bus and start
357 all device under PCI bus.
359 @param This Protocol instance pointer.
360 @param Controller Handle of device to bind driver to.
361 @param RemainingDevicePath Optional parameter use to pick a specific child.
364 @retval EFI_SUCCESS This driver is added to ControllerHandle.
365 @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle.
366 @retval other This driver does not support this device.
371 PciBusDriverBindingStart (
372 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
373 IN EFI_HANDLE Controller
,
374 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
378 Stop this driver on ControllerHandle. Support stoping any child handles
379 created by this driver.
381 @param This Protocol instance pointer.
382 @param Controller Handle of device to stop driver on.
383 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
384 children is zero stop the entire bus driver.
385 @param ChildHandleBuffer List of Child Handles to Stop.
387 @retval EFI_SUCCESS This driver is removed ControllerHandle.
388 @retval other This driver was not removed from this device.
393 PciBusDriverBindingStop (
394 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
395 IN EFI_HANDLE Controller
,
396 IN UINTN NumberOfChildren
,
397 IN EFI_HANDLE
*ChildHandleBuffer