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linux-next/arch/arm/mm/pabort-v7.S
Russell King 8dfe7ac96f 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>
2011-07-02 10:56:10 +01:00

22 lines
444 B
ArmAsm

#include <linux/linkage.h>
#include <asm/assembler.h>
/*
* Function: v7_pabort
*
* Params : r2 = pt_regs
* : r4 = address of aborted instruction
* : r5 = psr for parent context
*
* Returns : r4 - r11, r13 preserved
*
* Purpose : obtain information about current prefetch abort.
*/
.align 5
ENTRY(v7_pabort)
mrc p15, 0, r0, c6, c0, 2 @ get IFAR
mrc p15, 0, r1, c5, c0, 1 @ get IFSR
b do_PrefetchAbort
ENDPROC(v7_pabort)