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| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2016-01-18 04:49:54 +0000 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2016-02-23 13:31:58 +0800 |
| commit | bc97154cd7d0c8367a13f32f2c6921664a40a07e (patch) | |
| tree | 401fa5527bb4ce556562c605363d125f83036929 /MdeModulePkg/Library | |
| parent | 99f0b564db66039d53bef11ffa3a292670523944 (diff) | |
| download | edk2-platforms-bc97154cd7d0c8367a13f32f2c6921664a40a07e.tar.xz | |
MdeModulePkg: Add PciHostBridgeLibNull
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19656 6f19259b-4bc3-4df7-8a09-765794883524
(cherry picked from commit 7ff66d3c4a38435e045aa07714ffe69e25d2ff70)
Diffstat (limited to 'MdeModulePkg/Library')
3 files changed, 160 insertions, 0 deletions
diff --git a/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.c b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.c new file mode 100644 index 0000000000..41861b0c53 --- /dev/null +++ b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.c @@ -0,0 +1,104 @@ +/** @file
+ Null instance of PCI Host Bridge Library with empty functions.
+
+ Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials are
+ licensed and made available under the terms and conditions of
+ the BSD License which accompanies this distribution. The full
+ text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+#include <PiDxe.h>
+#include <Library/PciHostBridgeLib.h>
+#include <Library/DebugLib.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED CHAR16 *mPciHostBridgeLibAcpiAddressSpaceTypeStr[] = {
+ L"Mem", L"I/O", L"Bus"
+};
+
+/**
+ Return all the root bridge instances in an array.
+
+ @param Count Return the count of root bridge instances.
+
+ @return All the root bridge instances in an array.
+ The array should be passed into PciHostBridgeFreeRootBridges()
+ when it's not used.
+**/
+PCI_ROOT_BRIDGE *
+EFIAPI
+PciHostBridgeGetRootBridges (
+ UINTN *Count
+ )
+{
+ *Count = 0;
+ return NULL;
+}
+
+/**
+ Free the root bridge instances array returned from PciHostBridgeGetRootBridges().
+
+ @param The root bridge instances array.
+ @param The count of the array.
+**/
+VOID
+EFIAPI
+PciHostBridgeFreeRootBridges (
+ PCI_ROOT_BRIDGE *Bridges,
+ UINTN Count
+ )
+{
+ return;
+}
+
+/**
+ Inform the platform that the resource conflict happens.
+
+ @param HostBridgeHandle Handle of the Host Bridge.
+ @param Configuration Pointer to PCI I/O and PCI memory resource descriptors.
+ The Configuration contains the resources for all the
+ root bridges. The resource for each root bridge is
+ terminated with END descriptor and an additional END
+ is appended indicating the end of the entire resources.
+ The resource descriptor field values follow the description
+ in EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.SubmitResources().
+**/
+VOID
+EFIAPI
+PciHostBridgeResourceConflict (
+ EFI_HANDLE HostBridgeHandle,
+ VOID *Configuration
+ )
+{
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
+ UINTN RootBridgeIndex;
+ DEBUG ((EFI_D_ERROR, "PciHostBridge: Resource conflict happens!\n"));
+
+ RootBridgeIndex = 0;
+ Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
+ while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
+ DEBUG ((EFI_D_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));
+ for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
+ ASSERT (Descriptor->ResType <
+ sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr) / sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr[0])
+ );
+ DEBUG ((EFI_D_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
+ mPciHostBridgeLibAcpiAddressSpaceTypeStr[Descriptor->ResType], Descriptor->AddrLen, Descriptor->AddrRangeMax));
+ if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
+ DEBUG ((EFI_D_ERROR, " Granularity/SpecificFlag = %ld / %02x%s\n",
+ Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,
+ ((Descriptor->SpecificFlag & EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) != 0) ? L" (Prefetchable)" : L""
+ ));
+ }
+ }
+ //
+ // Skip the END descriptor for root bridge
+ //
+ ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);
+ Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) ((EFI_ACPI_END_TAG_DESCRIPTOR *) Descriptor + 1);
+ }
+}
diff --git a/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.inf b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.inf new file mode 100644 index 0000000000..6b30211844 --- /dev/null +++ b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.inf @@ -0,0 +1,36 @@ +## @file
+# Null instance of PCI Host Bridge Library with empty functions.
+#
+# Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PciHostBridgeLibNull
+ MODULE_UNI_FILE = PciHostBridgeLibNull.uni
+ FILE_GUID = A19A6C36-7053-4E2C-8BD0-E8286230E473
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciHostBridgeLib
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ PciHostBridgeLibNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
diff --git a/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.uni b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.uni new file mode 100644 index 0000000000..7b0fdee324 --- /dev/null +++ b/MdeModulePkg/Library/PciHostBridgeLibNull/PciHostBridgeLibNull.uni @@ -0,0 +1,20 @@ +// /** @file
+// Null instance of PCI Host Bridge Library with empty functions.
+//
+// Null instance of PCI Host Bridge Library with empty functions.
+//
+// Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT #language en-US "Null instance of PCI Host Bridge Library with empty functions."
+
+#string STR_MODULE_DESCRIPTION #language en-US "Null instance of PCI Host Bridge Library with empty functions."
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