ArmPkg: Move TimerDxe and ArmArchTimerLib to new ArmGenericTimerCounterLib

Move TimerDxe and ArmArchTimerLib to ArmGenericTimerCounterLib, and update all
platforms to select the physical counter instance they have been using
implicitly all along.

Contributed-under: TianoCore Contribution Agreement 1.0
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-By: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16078 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2014-09-09 16:10:18 +00:00
committed by oliviermartin
parent 2785509b57
commit 4f6d34b434
17 changed files with 37 additions and 307 deletions

View File

@@ -24,6 +24,7 @@
#include <Library/UefiLib.h>
#include <Library/PcdLib.h>
#include <Library/IoLib.h>
#include <Library/ArmGenericTimerCounterLib.h>
#include <Library/ArmArchTimer.h>
#include <Protocol/Timer.h>
@@ -101,7 +102,7 @@ ExitBootServicesEvent (
IN VOID *Context
)
{
ArmArchTimerDisableTimer ();
ArmGenericTimerDisableTimer ();
}
/**
@@ -144,7 +145,7 @@ TimerDriverSetTimerPeriod (
EFI_TPL OriginalTPL;
// Always disable the timer
ArmArchTimerDisableTimer ();
ArmGenericTimerDisableTimer ();
if (TimerPeriod != 0) {
// mTimerTicks = TimerPeriod in 1ms unit x Frequency.10^-3
@@ -163,13 +164,13 @@ TimerDriverSetTimerPeriod (
gBS->RestoreTPL (OriginalTPL);
// Get value of the current physical timer
CounterValue = ArmReadCntPct ();
// Get value of the current timer
CounterValue = ArmGenericTimerGetSystemCount ();
// Set the interrupt in Current Time + mTimerTick
ArmWriteCntpCval (CounterValue + mTimerTicks);
ArmGenericTimerSetCompareVal (CounterValue + mTimerTicks);
// Enable the timer
ArmArchTimerEnableTimer ();
ArmGenericTimerEnableTimer ();
} else {
// Save the new timer period
mTimerPeriod = TimerPeriod;
@@ -307,7 +308,7 @@ TimerInterruptHandler (
OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
// Check if the timer interrupt is active
if ((ArmArchTimerGetTimerCtrlReg () ) & ARM_ARCH_TIMER_ISTATUS) {
if ((ArmGenericTimerGetTimerCtrlReg () ) & ARM_ARCH_TIMER_ISTATUS) {
// Signal end of interrupt early to help avoid losing subsequent ticks from long duration handlers
gInterrupt->EndOfInterrupt (gInterrupt, Source);
@@ -321,9 +322,9 @@ TimerInterruptHandler (
//
// Get current counter value
CurrentValue = ArmReadCntPct ();
CurrentValue = ArmGenericTimerGetSystemCount ();
// Get the counter value to compare with
CompareValue = ArmReadCntpCval ();
CompareValue = ArmGenericTimerGetCompareVal ();
// This loop is needed in case we missed interrupts (eg: case when the interrupt handling
// has taken longer than mTickPeriod).
@@ -335,7 +336,7 @@ TimerInterruptHandler (
} while (CompareValue < CurrentValue);
// Set next compare value
ArmWriteCntpCval (CompareValue);
ArmGenericTimerSetCompareVal (CompareValue);
}
// Enable timer interrupts
@@ -379,10 +380,10 @@ TimerInitialize (
ASSERT_EFI_ERROR (Status);
// Disable the timer
TimerCtrlReg = ArmArchTimerGetTimerCtrlReg ();
TimerCtrlReg = ArmGenericTimerGetTimerCtrlReg ();
TimerCtrlReg |= ARM_ARCH_TIMER_IMASK;
TimerCtrlReg &= ~ARM_ARCH_TIMER_ENABLE;
ArmArchTimerSetTimerCtrlReg (TimerCtrlReg);
ArmGenericTimerSetTimerCtrlReg (TimerCtrlReg);
Status = TimerDriverSetTimerPeriod (&gTimer, 0);
ASSERT_EFI_ERROR (Status);
@@ -416,7 +417,7 @@ TimerInitialize (
// Everything is ready, unmask and enable timer interrupts
TimerCtrlReg = ARM_ARCH_TIMER_ENABLE;
ArmArchTimerSetTimerCtrlReg (TimerCtrlReg);
ArmGenericTimerSetTimerCtrlReg (TimerCtrlReg);
// Register for an ExitBootServicesEvent
Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent);