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Added FIQ interrupt primatives. Update exception handler to disable/reenable FIQ when updating in case debug agent library is using FIQ.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10197 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish
2010-03-05 02:15:41 +00:00
parent 41d478023f
commit 0416278cfd
6 changed files with 118 additions and 4 deletions
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18
ArmPkg/Library/ArmLib/ArmV7/ArmLibSupport.S
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@@ -19,6 +19,9 @@
.globl ASM_PFX(ArmEnableInterrupts)
.globl ASM_PFX(ArmDisableInterrupts)
.globl ASM_PFX(ArmGetInterruptState)
.globl ASM_PFX(ArmEnableFiq)
.globl ASM_PFX(ArmDisableFiq)
.globl ASM_PFX(ArmGetFiqState)
.globl ASM_PFX(ArmInvalidateTlb)
.globl ASM_PFX(ArmSetTranslationTableBaseAddress)
.globl ASM_PFX(ArmGetTranslationTableBaseAddress)
@@ -54,6 +57,21 @@ ASM_PFX(ArmGetInterruptState):
movne R0,#0
bx LR
ASM_PFX(ArmEnableFiq):
cpsie f
bx LR
ASM_PFX(ArmDisableFiq):
cpsid f
bx LR
ASM_PFX(ArmGetFiqState):
mrs R0,CPSR
tst R0,#0x30 @Check if IRQ is enabled.
moveq R0,#1
movne R0,#0
bx LR
ASM_PFX(ArmInvalidateTlb):
mov r0,#0
mcr p15,0,r0,c8,c7,0