[edk2-devel] [PATCH v6 06/11] ArmVirtPkg/FdtPciHostBridgeLib: Refactor init/uninit of root bridge

Jiahui Cen via groups.io posted 11 patches 5 years ago
[edk2-devel] [PATCH v6 06/11] ArmVirtPkg/FdtPciHostBridgeLib: Refactor init/uninit of root bridge
Posted by Jiahui Cen via groups.io 5 years ago
Rebase ArmVirtPkg/FdtPciHostBridgeLib to the new
PciHostBridgeUtilityInitRootBridge()/PciHostBridgeUtilityUninitRootBridge()
utility functions.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@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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Re: [edk2-devel] [PATCH v6 06/11] ArmVirtPkg/FdtPciHostBridgeLib: Refactor init/uninit of root bridge
Posted by Laszlo Ersek 5 years ago
On 01/19/21 02:12, Jiahui Cen via groups.io wrote:
> Rebase ArmVirtPkg/FdtPciHostBridgeLib to the new
> PciHostBridgeUtilityInitRootBridge()/PciHostBridgeUtilityUninitRootBridge()
> utility functions.
> 
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
> 
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
> Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
> ---
>  ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf |   1 +
>  ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c   | 124 ++++++++++----------
>  2 files changed, 61 insertions(+), 64 deletions(-)

Reviewed-by: Laszlo Ersek <lersek@redhat.com>

Thanks
Laszlo

> 
> 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);
>  }
>  
>  /**
> 



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