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Diffstat (limited to 'OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c')
-rw-r--r--OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c
deleted file mode 100644
index e673434ae6..0000000000
--- a/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/** @file
- Provide constructor and GetTick for Dxe instance of ACPI Timer Library
-
- Copyright (C) 2014, Gabriel L. Somlo <somlo@cmu.edu>
-
- 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 <Library/DebugLib.h>
-#include <Library/IoLib.h>
-#include <Library/PcdLib.h>
-#include <Library/PciLib.h>
-#include <OvmfPlatforms.h>
-
-//
-// Cached ACPI Timer IO Address
-//
-STATIC UINT32 mAcpiTimerIoAddr;
-
-/**
- The constructor function caches the ACPI tick counter address
-
- At the time this constructor runs (DXE_CORE or later), ACPI IO space
- has already been enabled by either PlatformPei or by the "Base"
- instance of this library.
- In order to avoid querying the underlying platform type during each
- tick counter read operation, we cache the counter address during
- initialization of this instance of the Timer Library.
-
- @retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS.
-
-**/
-RETURN_STATUS
-EFIAPI
-AcpiTimerLibConstructor (
- VOID
- )
-{
- UINT16 HostBridgeDevId;
- UINTN Pmba;
-
- //
- // Query Host Bridge DID to determine platform type
- //
- HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
- switch (HostBridgeDevId) {
- case INTEL_82441_DEVICE_ID:
- Pmba = POWER_MGMT_REGISTER_PIIX4 (PIIX4_PMBA);
- break;
- case INTEL_Q35_MCH_DEVICE_ID:
- Pmba = POWER_MGMT_REGISTER_Q35 (ICH9_PMBASE);
- break;
- default:
- DEBUG ((EFI_D_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
- __FUNCTION__, HostBridgeDevId));
- ASSERT (FALSE);
- return RETURN_UNSUPPORTED;
- }
-
- mAcpiTimerIoAddr = (PciRead32 (Pmba) & ~PMBA_RTE) + ACPI_TIMER_OFFSET;
-
- return RETURN_SUCCESS;
-}
-
-/**
- Internal function to read the current tick counter of ACPI.
-
- Read the current ACPI tick counter using the counter address cached
- by this instance's constructor.
-
- @return The tick counter read.
-
-**/
-UINT32
-InternalAcpiGetTimerTick (
- VOID
- )
-{
- //
- // Return the current ACPI timer value.
- //
- return IoRead32 (mAcpiTimerIoAddr);
-}