[edk2-devel] [PATCH v6 06/11] ArmVirtPkg/FdtPciHostBridgeLib: Refactor init/uninit of root bridge
Jiahui Cen via groups.io
cenjiahui=huawei.com at groups.io
Tue Jan 19 01:12:57 UTC 2021
Rebase ArmVirtPkg/FdtPciHostBridgeLib to the new
PciHostBridgeUtilityInitRootBridge()/PciHostBridgeUtilityUninitRootBridge()
utility functions.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel at arm.com>
Cc: Leif Lindholm <leif at nuviainc.com>
Signed-off-by: Jiahui Cen <cenjiahui at huawei.com>
Signed-off-by: Yubo Miao <miaoyubo at huawei.com>
---
ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf | 1 +
ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c | 124 ++++++++++----------
2 files changed, 61 insertions(+), 64 deletions(-)
diff --git a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf
index 01d39626d14c..b813a0851d2a 100644
--- a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf
+++ b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf
@@ -34,6 +34,7 @@ [Packages]
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
+ BaseMemoryLib
DebugLib
DevicePathLib
DxeServicesTableLib
diff --git a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
index d554479bf0de..3ec7992b6331 100644
--- a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
+++ b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
@@ -7,6 +7,7 @@
**/
#include <PiDxe.h>
+#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/DxeServicesTableLib.h>
@@ -20,37 +21,6 @@
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/PciHostBridgeResourceAllocation.h>
-#pragma pack(1)
-typedef struct {
- ACPI_HID_DEVICE_PATH AcpiDevicePath;
- EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
-} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
-#pragma pack ()
-
-STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {
- {
- {
- ACPI_DEVICE_PATH,
- ACPI_DP,
- {
- (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),
- (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8)
- }
- },
- EISA_PNP_ID(0x0A03),
- 0
- },
-
- {
- END_DEVICE_PATH_TYPE,
- END_ENTIRE_DEVICE_PATH_SUBTYPE,
- {
- END_DEVICE_PATH_LENGTH,
- 0
- }
- }
-};
-
//
// We expect the "ranges" property of "pci-host-ecam-generic" to consist of
// records like this.
@@ -319,11 +289,18 @@ PciHostBridgeGetRootBridges (
UINTN *Count
)
{
- UINT64 IoBase, IoSize;
- UINT64 Mmio32Base, Mmio32Size;
- UINT64 Mmio64Base, Mmio64Size;
- UINT32 BusMin, BusMax;
- EFI_STATUS Status;
+ UINT64 IoBase, IoSize;
+ UINT64 Mmio32Base, Mmio32Size;
+ UINT64 Mmio64Base, Mmio64Size;
+ UINT32 BusMin, BusMax;
+ EFI_STATUS Status;
+ UINT64 Attributes;
+ UINT64 AllocationAttributes;
+ PCI_ROOT_BRIDGE_APERTURE Io;
+ PCI_ROOT_BRIDGE_APERTURE Mem;
+ PCI_ROOT_BRIDGE_APERTURE MemAbove4G;
+ PCI_ROOT_BRIDGE_APERTURE PMem;
+ PCI_ROOT_BRIDGE_APERTURE PMemAbove4G;
if (PcdGet64 (PcdPciExpressBaseAddress) == 0) {
DEBUG ((EFI_D_INFO, "%a: PCI host bridge not present\n", __FUNCTION__));
@@ -341,33 +318,29 @@ PciHostBridgeGetRootBridges (
return NULL;
}
- *Count = 1;
+ ZeroMem (&Io, sizeof (Io));
+ ZeroMem (&Mem, sizeof (Mem));
+ ZeroMem (&MemAbove4G, sizeof (MemAbove4G));
+ ZeroMem (&PMem, sizeof (PMem));
+ ZeroMem (&PMemAbove4G, sizeof (PMemAbove4G));
- mRootBridge.Segment = 0;
- mRootBridge.Supports = EFI_PCI_ATTRIBUTE_ISA_IO_16 |
- EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO |
- EFI_PCI_ATTRIBUTE_VGA_IO_16 |
- EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;
- mRootBridge.Attributes = mRootBridge.Supports;
+ Attributes = EFI_PCI_ATTRIBUTE_ISA_IO_16 |
+ EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO |
+ EFI_PCI_ATTRIBUTE_VGA_IO_16 |
+ EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;
- mRootBridge.DmaAbove4G = TRUE;
- mRootBridge.NoExtendedConfigSpace = FALSE;
- mRootBridge.ResourceAssigned = FALSE;
+ AllocationAttributes = EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM;
- mRootBridge.AllocationAttributes = EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM;
-
- mRootBridge.Bus.Base = BusMin;
- mRootBridge.Bus.Limit = BusMax;
- mRootBridge.Io.Base = IoBase;
- mRootBridge.Io.Limit = IoBase + IoSize - 1;
- mRootBridge.Mem.Base = Mmio32Base;
- mRootBridge.Mem.Limit = Mmio32Base + Mmio32Size - 1;
+ Io.Base = IoBase;
+ Io.Limit = IoBase + IoSize - 1;
+ Mem.Base = Mmio32Base;
+ Mem.Limit = Mmio32Base + Mmio32Size - 1;
if (sizeof (UINTN) == sizeof (UINT64)) {
- mRootBridge.MemAbove4G.Base = Mmio64Base;
- mRootBridge.MemAbove4G.Limit = Mmio64Base + Mmio64Size - 1;
+ MemAbove4G.Base = Mmio64Base;
+ MemAbove4G.Limit = Mmio64Base + Mmio64Size - 1;
if (Mmio64Size > 0) {
- mRootBridge.AllocationAttributes |= EFI_PCI_HOST_BRIDGE_MEM64_DECODE;
+ AllocationAttributes |= EFI_PCI_HOST_BRIDGE_MEM64_DECODE;
}
} else {
//
@@ -376,19 +349,41 @@ PciHostBridgeGetRootBridges (
// BARs unless they are allocated below 4 GB. So ignore the range above
// 4 GB in this case.
//
- mRootBridge.MemAbove4G.Base = MAX_UINT64;
- mRootBridge.MemAbove4G.Limit = 0;
+ MemAbove4G.Base = MAX_UINT64;
+ MemAbove4G.Limit = 0;
}
//
// No separate ranges for prefetchable and non-prefetchable BARs
//
- mRootBridge.PMem.Base = MAX_UINT64;
- mRootBridge.PMem.Limit = 0;
- mRootBridge.PMemAbove4G.Base = MAX_UINT64;
- mRootBridge.PMemAbove4G.Limit = 0;
+ PMem.Base = MAX_UINT64;
+ PMem.Limit = 0;
+ PMemAbove4G.Base = MAX_UINT64;
+ PMemAbove4G.Limit = 0;
- mRootBridge.DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath;
+ Status = PciHostBridgeUtilityInitRootBridge (
+ Attributes,
+ Attributes,
+ AllocationAttributes,
+ TRUE,
+ FALSE,
+ BusMin,
+ BusMax,
+ &Io,
+ &Mem,
+ &MemAbove4G,
+ &PMem,
+ &PMemAbove4G,
+ &mRootBridge
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a: failed to initialize PCI host bridge: %r\n",
+ __FUNCTION__, Status));
+ *Count = 0;
+ return NULL;
+ }
+
+ *Count = 1;
return &mRootBridge;
}
@@ -408,6 +403,7 @@ PciHostBridgeFreeRootBridges (
)
{
ASSERT (Count == 1);
+ PciHostBridgeUtilityUninitRootBridge (Bridges);
}
/**
--
2.29.2
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