mirror of
https://github.com/acidanthera/audk.git
synced 2025-04-07 19:45:07 +02:00
Updated Hardware Interrupt protocol to add an EOI member. Added ARM Data/Instruction syncronization barrier support to the ARM lib.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10063 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish
parent
14e00c13be
commit
026c3d34ee
@ -309,5 +309,23 @@ EFIAPI
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ArmDisableBranchPrediction (
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VOID
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);
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VOID
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EFIAPI
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ArmDataMemoryBarrier (
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VOID
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);
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VOID
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EFIAPI
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ArmDataSyncronizationBarrier (
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VOID
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);
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VOID
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EFIAPI
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ArmInstructionSynchronizationBarrier (
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VOID
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);
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#endif // __ARM_LIB__
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@ -116,3 +116,34 @@ ArmConfigureMmu (
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ArmEnableDataCache();
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ArmEnableMmu();
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}
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VOID
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EFIAPI
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ArmDataMemoryBarrier (
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VOID
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)
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{
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// Should move to assembly with the
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}
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VOID
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EFIAPI
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ArmDataSyncronizationBarrier (
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VOID
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)
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{
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// MOV R0, #0
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// MCR P15, #0, R0, C7, C10, #4}
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}
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VOID
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EFIAPI
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ArmInstructionSynchronizationBarrier (
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VOID
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)
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{
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}
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@ -30,6 +30,10 @@
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.globl ASM_PFX(ArmDisableInstructionCache)
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.globl ASM_PFX(ArmEnableBranchPrediction)
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.globl ASM_PFX(ArmDisableBranchPrediction)
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.globl ASM_PFX(ArmDataMemoryBarrier)
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.globl ASM_PFX(ArmDataSyncronizationBarrier)
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.globl ASM_PFX(ArmInstructionSynchronizationBarrier)
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.set DC_ON, (0x1<<2)
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.set IC_ON, (0x1<<12)
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@ -132,4 +136,20 @@ ASM_PFX(ArmDisableBranchPrediction):
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mcr p15, 0, r0, c1, c0, 0
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bx LR
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ASM_PFX(ArmDataMemoryBarrier):
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mov R0, #0
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mcr P15, #0, R0, C7, C10, #5
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bx LR
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ASM_PFX(ArmDataSyncronizationBarrier):
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mov R0, #0
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mcr P15, #0, R0, C7, C10, #4
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bx LR
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ASM_PFX(ArmInstructionSynchronizationBarrier):
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mov R0, #0
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mcr P15, #0, R0, C7, C5, #4
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bx LR
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ASM_FUNCTION_REMOVE_IF_UNREFERENCED
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@ -28,6 +28,9 @@
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EXPORT ArmDisableInstructionCache
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EXPORT ArmEnableBranchPrediction
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EXPORT ArmDisableBranchPrediction
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EXPORT ArmDataMemoryBarrier
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EXPORT ArmDataSyncronizationBarrier
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EXPORT ArmInstructionSynchronizationBarrier
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DC_ON EQU ( 0x1:SHL:2 )
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@ -136,4 +139,19 @@ ArmDisableBranchPrediction
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mcr p15, 0, r0, c1, c0, 0
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bx LR
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ASM_PFX(ArmDataMemoryBarrier):
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mov R0, #0
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mcr P15, #0, R0, C7, C10, #5
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bx LR
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ASM_PFX(ArmDataSyncronizationBarrier):
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mov R0, #0
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mcr P15, #0, R0, C7, C10, #4
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bx LR
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ASM_PFX(ArmInstructionSynchronizationBarrier):
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MOV R0, #0
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MCR P15, #0, R0, C7, C5, #4
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bx LR
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END
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@ -116,3 +116,30 @@ ArmConfigureMmu (
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ArmEnableDataCache();
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ArmEnableMmu();
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}
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VOID
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EFIAPI
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ArmDataMemoryBarrier (
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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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ArmDataSyncronizationBarrier (
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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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ArmInstructionSynchronizationBarrier (
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VOID
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)
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{
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}
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@ -34,6 +34,10 @@
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.globl ASM_PFX(ArmEnableBranchPrediction)
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.globl ASM_PFX(ArmDisableBranchPrediction)
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.globl ASM_PFX(ArmV7AllDataCachesOperation)
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.globl ASM_PFX(ArmDataMemoryBarrier)
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.globl ASM_PFX(ArmDataSyncronizationBarrier)
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.globl ASM_PFX(ArmInstructionSynchronizationBarrier)
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.set DC_ON, (0x1<<2)
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.set IC_ON, (0x1<<12)
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@ -222,5 +226,17 @@ L_Finished:
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ldmfd SP!, {r4-r12, lr}
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bx LR
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ASM_PFX(ArmDataMemoryBarrier):
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dmb
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bx LR
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ASM_PFX(ArmDataSyncronizationBarrier):
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dsb
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bx LR
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ASM_PFX(ArmInstructionSynchronizationBarrier):
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isb
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bx LR
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ASM_FUNCTION_REMOVE_IF_UNREFERENCED
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@ -30,6 +30,10 @@
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EXPORT ArmEnableBranchPrediction
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EXPORT ArmDisableBranchPrediction
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EXPORT ArmV7AllDataCachesOperation
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EXPORT ArmDataMemoryBarrier
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EXPORT ArmDataSyncronizationBarrier
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EXPORT ArmInstructionSynchronizationBarrier
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DC_ON EQU ( 0x1:SHL:2 )
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IC_ON EQU ( 0x1:SHL:12 )
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@ -217,4 +221,17 @@ Finished
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LDMFD SP!, {r4-r12, lr}
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BX LR
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ArmDataMemoryBarrier
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DMB
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BX LR
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ArmDataSyncronizationBarrier
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DSB
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BX LR
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ArmInstructionSynchronizationBarrier
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ISB
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BX LR
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END
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@ -1,7 +1,7 @@
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/** @file
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Template for Metronome Architecture Protocol driver of the ARM flavor
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Handle OMAP35xx interrupt controller
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Copyright (c) 2008-2009, Apple Inc. All rights reserved.
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Copyright (c) 2008-2010, Apple Inc. All rights reserved.
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All rights reserved. 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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@ -21,6 +21,7 @@
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#include <Library/UefiLib.h>
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#include <Library/PcdLib.h>
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#include <Library/IoLib.h>
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#include <Library/ArmLib.h>
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#include <Protocol/Cpu.h>
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#include <Protocol/HardwareInterrupt.h>
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@ -143,7 +144,7 @@ EnableInterruptSource (
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**/
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EFI_STATUS
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EFIAPI
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DisableInterruptSource(
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DisableInterruptSource (
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IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
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IN HARDWARE_INTERRUPT_SOURCE Source
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)
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@ -209,6 +210,28 @@ GetInterruptSourceState (
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return EFI_SUCCESS;
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}
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/**
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Signal to the hardware that the End Of Intrrupt state
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has been reached.
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@param This Instance pointer for this protocol
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@param Source Hardware source of the interrupt
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@retval EFI_SUCCESS Source interrupt EOI'ed.
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@retval EFI_DEVICE_ERROR Hardware could not be programmed.
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**/
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EFI_STATUS
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EFIAPI
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EndOfInterrupt (
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IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
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IN HARDWARE_INTERRUPT_SOURCE Source
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)
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{
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MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
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ArmDataSyncronizationBarrier ();
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return EFI_SUCCESS;
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}
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/**
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@ -232,19 +255,21 @@ IrqInterruptHandler (
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UINT32 Vector;
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HARDWARE_INTERRUPT_HANDLER InterruptHandler;
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Vector = MmioRead32(INTCPS_SIR_IRQ) & INTCPS_SIR_IRQ_MASK;
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Vector = MmioRead32 (INTCPS_SIR_IRQ) & INTCPS_SIR_IRQ_MASK;
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// Needed to prevent infinite nesting when Time Driver lowers TPL
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MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
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ArmDataSyncronizationBarrier ();
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InterruptHandler = gRegisteredInterruptHandlers[Vector];
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if (InterruptHandler != NULL) {
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// Call the registered interrupt handler.
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InterruptHandler(Vector, SystemContext);
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InterruptHandler (Vector, SystemContext);
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}
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// Needed to clear after running the handler
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MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
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ArmDataSyncronizationBarrier ();
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}
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//
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@ -259,7 +284,8 @@ EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptProtocol = {
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RegisterInterruptSource,
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EnableInterruptSource,
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DisableInterruptSource,
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GetInterruptSourceState
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GetInterruptSourceState,
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EndOfInterrupt
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};
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//
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@ -277,19 +303,19 @@ CpuProtocolInstalledNotification (
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//
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// Get the cpu protocol that this driver requires.
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//
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Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
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Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
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ASSERT_EFI_ERROR(Status);
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//
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// Unregister the default exception handler.
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//
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Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, NULL);
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Status = Cpu->RegisterInterruptHandler (Cpu, EXCEPT_ARM_IRQ, NULL);
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ASSERT_EFI_ERROR(Status);
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//
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// Register to receive interrupts
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//
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Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, IrqInterruptHandler);
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Status = Cpu->RegisterInterruptHandler (Cpu, EXCEPT_ARM_IRQ, IrqInterruptHandler);
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ASSERT_EFI_ERROR(Status);
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}
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@ -41,6 +41,7 @@
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[Packages]
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ArmPkg/ArmPkg.dec
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Omap35xxPkg/Omap35xxPkg.dec
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MdePkg/MdePkg.dec
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EmbeddedPkg/EmbeddedPkg.dec
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@ -53,6 +54,7 @@
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PrintLib
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UefiDriverEntryPoint
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IoLib
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ArmLib
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[Guids]
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@ -59,19 +59,13 @@ volatile UINTN gVector;
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C Interrupt Handler calledin the interrupt context when Source interrupt is active.
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@param Source Source of the interrupt. Hardware routing off a specific platform defines
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what source means.
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@param SystemContext Pointer to system register context. Mostly used by debuggers and will
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update the system context after the return from the interrupt if
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modified. Don't change these values unless you know what you are doing
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**/
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VOID
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EFIAPI
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@ -85,15 +79,10 @@ TimerInterruptHandler (
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//
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// DXE core uses this callback for the EFI timer tick. The DXE core uses locks
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// that raise to TPL_HIGH and then restore back to current level. Thus we need
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// to make sure TPL level is set to TPL_HIGH while we are handling the timer tick.
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//
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OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
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@ -115,63 +104,33 @@ TimerInterruptHandler (
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}
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/**
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This function registers the handler NotifyFunction so it is called every time
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the timer interrupt fires. It also passes the amount of time since the last
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handler call to the NotifyFunction. If NotifyFunction is NULL, then the
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handler is unregistered. If the handler is registered, then EFI_SUCCESS is
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returned. If the CPU does not support registering a timer interrupt handler,
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then EFI_UNSUPPORTED is returned. If an attempt is made to register a handler
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when a handler is already registered, then EFI_ALREADY_STARTED is returned.
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If an attempt is made to unregister a handler when a handler is not registered,
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then EFI_INVALID_PARAMETER is returned. If an error occurs attempting to
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register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR
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is returned.
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@param This The EFI_TIMER_ARCH_PROTOCOL instance.
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@param NotifyFunction The function to call when a timer interrupt fires. This
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function executes at TPL_HIGH_LEVEL. The DXE Core will
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register a handler for the timer interrupt, so it can know
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how much time has passed. This information is used to
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signal timer based events. NULL will unregister the handler.
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@retval EFI_SUCCESS The timer handler was registered.
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@retval EFI_UNSUPPORTED The platform does not support timer interrupts.
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@retval EFI_ALREADY_STARTED NotifyFunction is not NULL, and a handler is already
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registered.
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@retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not
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previously registered.
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@retval EFI_DEVICE_ERROR The timer handler could not be registered.
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**/
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EFI_STATUS
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EFIAPI
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TimerDriverRegisterHandler (
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@ -195,53 +154,30 @@ TimerDriverRegisterHandler (
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/**
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This function adjusts the period of timer interrupts to the value specified
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by TimerPeriod. If the timer period is updated, then the selected timer
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period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If
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the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.
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If an error occurs while attempting to update the timer period, then the
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timer hardware will be put back in its state prior to this call, and
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EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt
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is disabled. This is not the same as disabling the CPU's interrupts.
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Instead, it must either turn off the timer hardware, or it must adjust the
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interrupt controller so that a CPU interrupt is not generated when the timer
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interrupt fires.
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@param This The EFI_TIMER_ARCH_PROTOCOL instance.
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@param TimerPeriod The rate to program the timer interrupt in 100 nS units. If
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the timer hardware is not programmable, then EFI_UNSUPPORTED is
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returned. If the timer is programmable, then the timer period
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will be rounded up to the nearest timer period that is supported
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by the timer hardware. If TimerPeriod is set to 0, then the
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timer interrupts will be disabled.
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@retval EFI_SUCCESS The timer period was changed.
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@retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt.
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@retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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@ -286,31 +222,19 @@ TimerDriverSetTimerPeriod (
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/**
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This function retrieves the period of timer interrupts in 100 ns units,
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returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod
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is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is
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returned, then the timer is currently disabled.
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@param This The EFI_TIMER_ARCH_PROTOCOL instance.
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@param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If
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0 is returned, then the timer is currently disabled.
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@retval EFI_SUCCESS The timer period was returned in TimerPeriod.
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@retval EFI_INVALID_PARAMETER TimerPeriod is NULL.
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**/
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EFI_STATUS
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EFIAPI
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@ -328,33 +252,19 @@ TimerDriverGetTimerPeriod (
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}
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/**
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This function generates a soft timer interrupt. If the platform does not support soft
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timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned.
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If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler()
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service, then a soft timer interrupt will be generated. If the timer interrupt is
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enabled when this service is called, then the registered handler will be invoked. The
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registered handler should not be able to distinguish a hardware-generated timer
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interrupt from a software-generated timer interrupt.
|
||||
|
||||
|
||||
|
||||
@param This The EFI_TIMER_ARCH_PROTOCOL instance.
|
||||
|
||||
|
||||
|
||||
@retval EFI_SUCCESS The soft timer interrupt was generated.
|
||||
|
||||
@retval EFI_UNSUPPORTED The platform does not support the generation of soft timer interrupts.
|
||||
|
||||
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
@ -388,71 +298,38 @@ TimerDriverRegisterPeriodicCallback (
|
||||
|
||||
|
||||
/**
|
||||
|
||||
Interface stucture for the Timer Architectural Protocol.
|
||||
|
||||
|
||||
|
||||
@par Protocol Description:
|
||||
|
||||
This protocol provides the services to initialize a periodic timer
|
||||
|
||||
interrupt, and to register a handler that is called each time the timer
|
||||
|
||||
interrupt fires. It may also provide a service to adjust the rate of the
|
||||
|
||||
periodic timer interrupt. When a timer interrupt occurs, the handler is
|
||||
|
||||
passed the amount of time that has passed since the previous timer
|
||||
|
||||
interrupt.
|
||||
|
||||
|
||||
|
||||
@param RegisterHandler
|
||||
|
||||
Registers a handler that will be called each time the
|
||||
|
||||
timer interrupt fires. TimerPeriod defines the minimum
|
||||
|
||||
time between timer interrupts, so TimerPeriod will also
|
||||
|
||||
be the minimum time between calls to the registered
|
||||
|
||||
handler.
|
||||
|
||||
|
||||
|
||||
@param SetTimerPeriod
|
||||
|
||||
Sets the period of the timer interrupt in 100 nS units.
|
||||
|
||||
This function is optional, and may return EFI_UNSUPPORTED.
|
||||
|
||||
If this function is supported, then the timer period will
|
||||
|
||||
be rounded up to the nearest supported timer period.
|
||||
|
||||
|
||||
|
||||
@param GetTimerPeriod
|
||||
|
||||
Retrieves the period of the timer interrupt in 100 nS units.
|
||||
|
||||
|
||||
|
||||
@param GenerateSoftInterrupt
|
||||
|
||||
Generates a soft timer interrupt that simulates the firing of
|
||||
|
||||
the timer interrupt. This service can be used to invoke the
|
||||
|
||||
registered handler if the timer interrupt has been masked for
|
||||
|
||||
the timer interrupt. This service can be used to invoke the registered handler if the timer interrupt has been masked for
|
||||
a period of time.
|
||||
|
||||
|
||||
|
||||
**/
|
||||
EFI_TIMER_ARCH_PROTOCOL gTimer = {
|
||||
TimerDriverRegisterHandler,
|
||||
@ -467,29 +344,17 @@ TIMER_DEBUG_SUPPORT_PROTOCOL gTimerDebugSupport = {
|
||||
|
||||
|
||||
/**
|
||||
|
||||
Initialize the state information for the Timer Architectural Protocol and
|
||||
|
||||
the Timer Debug support protocol that allows the debugger to break into a
|
||||
|
||||
running program.
|
||||
|
||||
|
||||
|
||||
@param ImageHandle of the loaded driver
|
||||
|
||||
@param SystemTable Pointer to the System Table
|
||||
|
||||
|
||||
|
||||
@retval EFI_SUCCESS Protocol registered
|
||||
|
||||
@retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
|
||||
|
||||
@retval EFI_DEVICE_ERROR Hardware problems
|
||||
|
||||
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user