5853e2e450
In preparation of selectively reinstating the timer enable quirk for Xen
that we removed in commit 411a373ed6 ("ArmPkg/TimerDxe: remove workaround
for KVM timer handling"), add a ArmGenericTimerReenableTimer() library
function to ArmGenericTimerCounterLib that we will populate for Xen only.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Julien Grall <julien.grall@arm.com>
Acked-by: Julien Grall <julien.grall@arm.com>
134 lines
2.0 KiB
C
134 lines
2.0 KiB
C
/** @file
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Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
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Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/ArmGenericTimerCounterLib.h>
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#include <Library/ArmLib.h>
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VOID
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EFIAPI
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ArmGenericTimerEnableTimer (
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VOID
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)
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{
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UINTN TimerCtrlReg;
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TimerCtrlReg = ArmReadCntvCtl ();
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TimerCtrlReg |= ARM_ARCH_TIMER_ENABLE;
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ArmWriteCntvCtl (TimerCtrlReg);
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}
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VOID
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EFIAPI
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ArmGenericTimerReenableTimer (
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VOID
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)
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{
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}
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VOID
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EFIAPI
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ArmGenericTimerDisableTimer (
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VOID
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)
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{
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UINTN TimerCtrlReg;
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TimerCtrlReg = ArmReadCntvCtl ();
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TimerCtrlReg &= ~ARM_ARCH_TIMER_ENABLE;
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ArmWriteCntvCtl (TimerCtrlReg);
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}
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VOID
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EFIAPI
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ArmGenericTimerSetTimerFreq (
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IN UINTN FreqInHz
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)
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{
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ArmWriteCntFrq (FreqInHz);
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}
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UINTN
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EFIAPI
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ArmGenericTimerGetTimerFreq (
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VOID
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)
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{
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return ArmReadCntFrq ();
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}
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UINTN
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EFIAPI
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ArmGenericTimerGetTimerVal (
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VOID
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)
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{
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return ArmReadCntvTval ();
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}
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VOID
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EFIAPI
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ArmGenericTimerSetTimerVal (
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IN UINTN Value
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)
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{
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ArmWriteCntvTval (Value);
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}
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UINT64
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EFIAPI
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ArmGenericTimerGetSystemCount (
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VOID
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)
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{
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return ArmReadCntvCt ();
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}
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UINTN
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EFIAPI
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ArmGenericTimerGetTimerCtrlReg (
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VOID
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)
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{
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return ArmReadCntvCtl ();
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}
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VOID
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EFIAPI
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ArmGenericTimerSetTimerCtrlReg (
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UINTN Value
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)
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{
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ArmWriteCntvCtl (Value);
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}
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UINT64
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EFIAPI
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ArmGenericTimerGetCompareVal (
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VOID
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)
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{
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return ArmReadCntvCval ();
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}
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VOID
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EFIAPI
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ArmGenericTimerSetCompareVal (
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IN UINT64 Value
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)
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{
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ArmWriteCntvCval (Value);
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}
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