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ARM: entry: prefetch/data abort helpers: convert to macros

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-06-26 10:22:08 +01:00
parent 2342aa282b
commit ac8b9c1ce0
1 changed files with 35 additions and 50 deletions
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85
arch/arm/kernel/entry-armv.S
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@ -44,6 +44,37 @@
9997:
.endm
.macro pabt_helper
mov r0, r2 @ pass address of aborted instruction.
#ifdef MULTI_PABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_PABT_FUNC]
#else
bl CPU_PABORT_HANDLER
#endif
.endm
.macro dabt_helper
@
@ Call the processor-specific abort handler:
@
@ r2 - aborted context pc
@ r3 - aborted context cpsr
@
@ The abort handler must return the aborted address in r0, and
@ the fault status register in r1. r9 must be preserved.
@
#ifdef MULTI_DABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_DABT_FUNC]
#else
bl CPU_DABORT_HANDLER
#endif
.endm
#ifdef CONFIG_KPROBES
.section .kprobes.text,"ax",%progbits
#else
@ -159,22 +190,7 @@ __dabt_svc:
tst r3, #PSR_I_BIT
biceq r9, r9, #PSR_I_BIT
@
@ Call the processor-specific abort handler:
@
@ r2 - aborted context pc
@ r3 - aborted context cpsr
@
@ The abort handler must return the aborted address in r0, and
@ the fault status register in r1. r9 must be preserved.
@
#ifdef MULTI_DABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_DABT_FUNC]
#else
bl CPU_DABORT_HANDLER
#endif
dabt_helper
@
@ set desired IRQ state, then call main handler
@ -298,14 +314,7 @@ __pabt_svc:
tst r3, #PSR_I_BIT
biceq r9, r9, #PSR_I_BIT
mov r0, r2 @ pass address of aborted instruction.
#ifdef MULTI_PABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_PABT_FUNC]
#else
bl CPU_PABORT_HANDLER
#endif
pabt_helper
debug_entry r1
msr cpsr_c, r9 @ Maybe enable interrupts
mov r2, sp @ regs
@ -401,23 +410,7 @@ ENDPROC(__pabt_svc)
__dabt_usr:
usr_entry
kuser_cmpxchg_check
@
@ Call the processor-specific abort handler:
@
@ r2 - aborted context pc
@ r3 - aborted context cpsr
@
@ The abort handler must return the aborted address in r0, and
@ the fault status register in r1.
@
#ifdef MULTI_DABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_DABT_FUNC]
#else
bl CPU_DABORT_HANDLER
#endif
dabt_helper
@
@ IRQs on, then call the main handler
@ -682,15 +675,7 @@ ENDPROC(__und_usr_unknown)
.align 5
__pabt_usr:
usr_entry
mov r0, r2 @ pass address of aborted instruction.
#ifdef MULTI_PABORT
ldr r4, .LCprocfns
mov lr, pc
ldr pc, [r4, #PROCESSOR_PABT_FUNC]
#else
bl CPU_PABORT_HANDLER
#endif
pabt_helper
debug_entry r1
enable_irq @ Enable interrupts
mov r2, sp @ regs