[edk2-devel] [PATCH v4 05/10] Silicon/Phytium: Added PciHostBridgeLib to FT2000/4
Ling Jia
jialing at phytium.com.cn
Wed Aug 18 09:40:19 UTC 2021
The Pci host bridge library is mainly
to get Pci bridge information.
Signed-off-by: Ling Jia <jialing at phytium.com.cn>
Reviewed-by: Leif Lindholm <leif at nuviainc.com>
---
Platform/Phytium/DurianPkg/DurianPkg.dsc | 9 +
Platform/Phytium/DurianPkg/DurianPkg.fdf | 6 +
Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 47 +++++
Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 181 ++++++++++++++++++++
4 files changed, 243 insertions(+)
diff --git a/Platform/Phytium/DurianPkg/DurianPkg.dsc b/Platform/Phytium/DurianPkg/DurianPkg.dsc
index 093b2cd9db..3a9bc2289c 100644
--- a/Platform/Phytium/DurianPkg/DurianPkg.dsc
+++ b/Platform/Phytium/DurianPkg/DurianPkg.dsc
@@ -37,6 +37,7 @@
[LibraryClasses.common.DXE_DRIVER]
# Pci dependencies
PciSegmentLib|Silicon/Phytium/FT2000-4Pkg/Library/PciSegmentLib/PciSegmentLib.inf
+ PciHostBridgeLib|Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
################################################################################
#
@@ -263,6 +264,14 @@
MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf
MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf
+ #
+ # PCI Support
+ #
+ ArmPkg/Drivers/ArmPciCpuIo2Dxe/ArmPciCpuIo2Dxe.inf
+ MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf
+ MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+ MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceDxe.inf
+
#
# The following 2 module perform the same work except one operate variable.
# Only one of both should be put into fdf.
diff --git a/Platform/Phytium/DurianPkg/DurianPkg.fdf b/Platform/Phytium/DurianPkg/DurianPkg.fdf
index 3106a43fb7..a443d0f3a4 100644
--- a/Platform/Phytium/DurianPkg/DurianPkg.fdf
+++ b/Platform/Phytium/DurianPkg/DurianPkg.fdf
@@ -135,6 +135,12 @@ READ_LOCK_STATUS = TRUE
INF FatPkg/EnhancedFatDxe/Fat.inf
INF MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
+ #
+ # PCI Support
+ #
+ INF MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+ INF MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf
+
#
# SATA Controller
#
diff --git a/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
new file mode 100644
index 0000000000..0e6f0797b0
--- /dev/null
+++ b/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
@@ -0,0 +1,47 @@
+#/** @file
+# PCI Host Bridge Library instance for Phytium SOC.
+#
+# Copyright (C) 2020, Phytium Technology Co, Ltd. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x0001001b
+ BASE_NAME = PciHostBridgeLib
+ FILE_GUID = f965de0e-40fe-11eb-8290-3f9d1f895a80
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciHostBridgeLib|DXE_DRIVER
+
+#
+# The following information is for reference only and not required by the build
+# tools.
+#
+# VALID_ARCHITECTURES = ARM AARCH64
+#
+
+[Sources]
+ PciHostBridgeLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ Silicon/Phytium/PhytiumCommonPkg/PhytiumCommonPkg.dec
+
+[LibraryClasses]
+ DebugLib
+
+[Guids]
+
+[FixedPcd]
+ gArmTokenSpaceGuid.PcdPciBusMin
+ gArmTokenSpaceGuid.PcdPciBusMax
+ gArmTokenSpaceGuid.PcdPciIoBase
+ gArmTokenSpaceGuid.PcdPciIoSize
+ gArmTokenSpaceGuid.PcdPciMmio32Base
+ gArmTokenSpaceGuid.PcdPciMmio32Size
+ gArmTokenSpaceGuid.PcdPciMmio64Base
+ gArmTokenSpaceGuid.PcdPciMmio64Size
diff --git a/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
new file mode 100644
index 0000000000..8ed3516749
--- /dev/null
+++ b/Silicon/Phytium/FT2000-4Pkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -0,0 +1,181 @@
+/** @file
+ PCI host bridge library instance for Phytium SOC.
+
+ Copyright (C) 2020, Phytium Technology Co Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/PciHostBridgeLib.h>
+#include <Protocol/PciHostBridgeResourceAllocation.h>
+#include <Protocol/PciRootBridgeIo.h>
+
+#pragma pack(1)
+
+typedef struct {
+ ACPI_HID_DEVICE_PATH AcpiDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
+} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
+
+#pragma pack ()
+
+#define END_DEVICE_PATH_DEF { END_DEVICE_PATH_TYPE, \
+ END_ENTIRE_DEVICE_PATH_SUBTYPE, \
+ { END_DEVICE_PATH_LENGTH, 0 } \
+ }
+
+#define ACPI_DEVICE_PATH_DEF(UID) {{ ACPI_DEVICE_PATH, ACPI_DP, \
+ { (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)), \
+ (UINT8) (sizeof (ACPI_HID_DEVICE_PATH) >> 8)} \
+ }, \
+ EISA_PNP_ID (0x0A03), UID \
+ }
+
+STATIC CONST EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[] = {
+ {
+ ACPI_DEVICE_PATH_DEF (0),
+ END_DEVICE_PATH_DEF
+ },
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED
+CHAR16 *mPciHostBridgeLibAcpiAddressSpaceTypeStr[] = {
+ L"Mem", L"I/O", L"Bus"
+};
+
+STATIC PCI_ROOT_BRIDGE mRootBridge = {
+ 0, // Segment
+ 0, // Supports
+ 0, // Attributes
+ TRUE, // DmaAbove4G
+ FALSE, // NoExtendedConfigSpace
+ FALSE, // ResourceAssigned
+ EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM | // AllocationAttributes
+ EFI_PCI_HOST_BRIDGE_MEM64_DECODE,
+ {
+ // Bus
+ FixedPcdGet32 (PcdPciBusMin),
+ FixedPcdGet32 (PcdPciBusMax)
+ }, {
+ // Io
+ FixedPcdGet64 (PcdPciIoBase),
+ FixedPcdGet64 (PcdPciIoBase) + FixedPcdGet64 (PcdPciIoSize) - 1
+ }, {
+ // Mem
+ FixedPcdGet32 (PcdPciMmio32Base),
+ FixedPcdGet32 (PcdPciMmio32Base) + (FixedPcdGet32 (PcdPciMmio32Size) - 1)
+ //0x7FFFFFFF
+ }, {
+ // MemAbove4G
+ FixedPcdGet64 (PcdPciMmio64Base),
+ FixedPcdGet64 (PcdPciMmio64Base) + FixedPcdGet64 (PcdPciMmio64Size) - 1
+ }, {
+ // PMem
+ MAX_UINT64,
+ 0
+ }, {
+ // PMemAbove4G
+ MAX_UINT64,
+ 0
+ },
+ (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath
+};
+
+/**
+ Return all the root bridge instances in an array.
+
+ @param[out] 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 (
+ OUT UINTN *Count
+ )
+{
+ *Count = 1;
+ return &mRootBridge;
+}
+
+
+/**
+ Free the root bridge instances array returned from PciHostBridgeGetRootBridges().
+
+ @param[in] Bridges The root bridge instances array.
+ @param[in] Count The count of the array.
+
+**/
+VOID
+EFIAPI
+PciHostBridgeFreeRootBridges (
+ IN PCI_ROOT_BRIDGE *Bridges,
+ IN UINTN Count
+ )
+{
+
+}
+
+
+/**
+ Inform the platform that the resource conflict happens.
+
+ @param[in] HostBridgeHandle Handle of the Host Bridge.
+ @param[in] 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 (
+ IN EFI_HANDLE HostBridgeHandle,
+ IN VOID *Configuration
+ )
+{
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
+ BOOLEAN IsPrefetchable;
+
+ Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
+ while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
+ for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
+ ASSERT (Descriptor->ResType <
+ ARRAY_SIZE (mPciHostBridgeLibAcpiAddressSpaceTypeStr));
+ DEBUG ((DEBUG_INFO, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
+ mPciHostBridgeLibAcpiAddressSpaceTypeStr[Descriptor->ResType],
+ Descriptor->AddrLen,
+ Descriptor->AddrRangeMax
+ ));
+ if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
+
+ IsPrefetchable = (Descriptor->SpecificFlag &
+ EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) != 0;
+
+ DEBUG ((DEBUG_INFO, " Granularity/SpecificFlag = %ld / %02x%s\n",
+ Descriptor->AddrSpaceGranularity,
+ Descriptor->SpecificFlag,
+ (IsPrefetchable) ? 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
+ );
+ }
+}
--
2.25.1
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