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/** @file
*
* Copyright (c) 2011-2013, ARM Limited. All rights reserved.
*
* 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 <Uefi.h>
#include <Library/IoLib.h>
#include <Library/ArmGicLib.h>
#include <Library/PcdLib.h>
UINTN
EFIAPI
ArmGicGetMaxNumInterrupts (
IN INTN GicDistributorBase
)
{
return 32 * ((MmioRead32 (GicDistributorBase + ARM_GIC_ICDICTR) & 0x1F) + 1);
}
VOID
EFIAPI
ArmGicSendSgiTo (
IN INTN GicDistributorBase,
IN INTN TargetListFilter,
IN INTN CPUTargetList,
IN INTN SgiId
)
{
MmioWrite32 (GicDistributorBase + ARM_GIC_ICDSGIR, ((TargetListFilter & 0x3) << 24) | ((CPUTargetList & 0xFF) << 16) | SgiId);
}
UINTN
EFIAPI
ArmGicAcknowledgeInterrupt (
IN UINTN GicInterruptInterfaceBase
)
{
// Read the Interrupt Acknowledge Register
return MmioRead32 (GicInterruptInterfaceBase + ARM_GIC_ICCIAR);
}
VOID
EFIAPI
ArmGicEndOfInterrupt (
IN UINTN GicInterruptInterfaceBase,
IN UINTN Source
)
{
MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCEIOR, Source);
}
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