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ArmPkg/ArmGic: Returned the InterruptId in ArmGicAcknowledgeInterrupt()

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The InterruptId has a different width for GicV2 and GicV3 (respectively
10bit and 24bit).
The function prototype has been changed to return this value to make the
caller GIC architecture version independent. Otherwise, we would have need
to expose a different mask to allow the caller to retrieve this value from
the read register.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15628 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
2014-07-04 14:41:30 +00:00
committed by oliviermartin
parent f5241b5725
commit 1b0ac0dedf
5 changed files with 66 additions and 22 deletions
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11
ArmPlatformPkg/PrePeiCore/MainMPCore.c
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@@ -1,6 +1,6 @@
/** @file
*
* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
* Copyright (c) 2011-2014, 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
@@ -45,7 +45,8 @@ SecondaryMain (
UINT32 CoreId;
VOID (*SecondaryStart)(VOID);
UINTN SecondaryEntryAddr;
UINTN Interrupt;
UINTN AcknowledgeInterrupt;
UINTN InterruptId;
ClusterId = GET_CLUSTER_ID(MpId);
CoreId = GET_CORE_ID(MpId);
@@ -88,11 +89,11 @@ SecondaryMain (
SecondaryEntryAddr = MmioRead32 (ArmCoreInfoTable[Index].MailboxGetAddress);
// Acknowledge the interrupt and send End of Interrupt signal.
Interrupt = ArmGicAcknowledgeInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase));
AcknowledgeInterrupt = ArmGicAcknowledgeInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase), &InterruptId);
// Check if it is a valid interrupt ID
if ((Interrupt & ARM_GIC_ICCIAR_ACKINTID) < ArmGicGetMaxNumInterrupts (PcdGet32 (PcdGicDistributorBase))) {
if (InterruptId < ArmGicGetMaxNumInterrupts (PcdGet32 (PcdGicDistributorBase))) {
// Got a valid SGI number hence signal End of Interrupt
ArmGicEndOfInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase), Interrupt);
ArmGicEndOfInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase), AcknowledgeInterrupt);
}
} while (SecondaryEntryAddr == 0);