diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-26 12:37:35 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-02 10:56:10 +0100 |
| commit | 8dfe7ac96fedd4f5219879f63a8a546a33609daf (patch) | |
| tree | c723c0845d9f2080d9a0517bd2a94014870d7134 /arch/arm/kernel/entry-armv.S | |
| parent | d9600c99c549732a501cb727157800623a06175d (diff) | |
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
Tail-call the main C prefetch abort handler code from the per-CPU
helper code. Also note that the helper function becomes ABI
compliant in terms of the registers preserved.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index b17e57949d3..af2fba7a4ca 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -45,7 +45,7 @@ .endm .macro pabt_helper - @ PABORT handler takes fault address in r4 + @ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5 #ifdef MULTI_PABORT ldr ip, .LCprocfns mov lr, pc @@ -306,9 +306,8 @@ ENDPROC(__und_svc) .align 5 __pabt_svc: svc_entry - pabt_helper mov r2, sp @ regs - bl do_PrefetchAbort @ call abort handler + pabt_helper @ @ IRQs off again before pulling preserved data off the stack @@ -653,9 +652,8 @@ ENDPROC(__und_usr_unknown) .align 5 __pabt_usr: usr_entry - pabt_helper mov r2, sp @ regs - bl do_PrefetchAbort @ call abort handler + pabt_helper UNWIND(.fnend ) /* fall through */ /* |