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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-06-26 12:37:35 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-07-02 10:56:10 +0100
commit8dfe7ac96fedd4f5219879f63a8a546a33609daf (patch)
treec723c0845d9f2080d9a0517bd2a94014870d7134 /arch/arm/mm/pabort-legacy.S
parentd9600c99c549732a501cb727157800623a06175d (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/mm/pabort-legacy.S')
-rw-r--r--arch/arm/mm/pabort-legacy.S9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm/mm/pabort-legacy.S b/arch/arm/mm/pabort-legacy.S
index 8a5d8aaf2d5e..8bbff025269a 100644
--- a/arch/arm/mm/pabort-legacy.S
+++ b/arch/arm/mm/pabort-legacy.S
@@ -4,10 +4,11 @@
/*
* Function: legacy_pabort
*
- * Params : r4 = address of aborted instruction
+ * Params : r2 = pt_regs
+ * : r4 = address of aborted instruction
+ * : r5 = psr for parent context
*
- * Returns : r0 = address of abort
- * : r1 = Simulated IFSR with section translation fault status
+ * Returns : r4 - r11, r13 preserved
*
* Purpose : obtain information about current prefetch abort.
*/
@@ -16,5 +17,5 @@
ENTRY(legacy_pabort)
mov r0, r4
mov r1, #5
- mov pc, lr
+ b do_PrefetchAbort
ENDPROC(legacy_pabort)