diff options
| author | Laszlo Ersek <lersek@redhat.com> | 2015-02-23 16:03:21 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-02-23 16:03:21 +0000 |
| commit | 1cfa1957bb6979c6b7b30cd270cab44842639f56 (patch) | |
| tree | 1417104896fb90d29aee1d5fce8d7d7d0a9a5705 /ArmPlatformPkg | |
| parent | 1275aaf430e5770f4c39b646bb731efa69b5b664 (diff) | |
| download | edk2-platforms-1cfa1957bb6979c6b7b30cd270cab44842639f56.tar.xz | |
ArmVirtualizationPkg/PciHostBridgeDxe: IO space is emulated with MMIO
There is no IO space on ARM, and there are no special instructions that
access it. QEMU emulates the IO space for PCI devices with a special MMIO
range. We're ready to use it at this point, we just have to switch the
Io(Read|Write)(8|16|32) primitives to their MMIO counterparts, because in
"MdePkg/Library/BaseIoLibIntrinsic/IoLibArm.c", the IO primitives
correctly ASSERT (FALSE).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16900 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg')
| -rw-r--r-- | ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c b/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c index 85048b2f74..ea895e8d68 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c +++ b/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciRootBridgeIo.c @@ -1008,13 +1008,13 @@ RootBridgeIoIoRW ( if (Write) {
switch (OperationWidth) {
case EfiPciWidthUint8:
- IoWrite8 ((UINTN)Address, *Uint8Buffer);
+ MmioWrite8 ((UINTN)Address, *Uint8Buffer);
break;
case EfiPciWidthUint16:
- IoWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
+ MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
break;
case EfiPciWidthUint32:
- IoWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
+ MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
break;
default:
//
@@ -1027,13 +1027,13 @@ RootBridgeIoIoRW ( } else {
switch (OperationWidth) {
case EfiPciWidthUint8:
- *Uint8Buffer = IoRead8 ((UINTN)Address);
+ *Uint8Buffer = MmioRead8 ((UINTN)Address);
break;
case EfiPciWidthUint16:
- *((UINT16 *)Uint8Buffer) = IoRead16 ((UINTN)Address);
+ *((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address);
break;
case EfiPciWidthUint32:
- *((UINT32 *)Uint8Buffer) = IoRead32 ((UINTN)Address);
+ *((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address);
break;
default:
//
|