ARM: entry: data abort: arrange for CPU abort helpers to take pc/psr in r4/r5
Re-jig the CPU abort helpers to take the PC/PSR in r4/r5 rather
than r2/r3.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/abort-ev4t.S b/arch/arm/mm/abort-ev4t.S
index 9910123..eaa4ac0 100644
--- a/arch/arm/mm/abort-ev4t.S
+++ b/arch/arm/mm/abort-ev4t.S
@@ -4,8 +4,8 @@
/*
* Function: v4t_early_abort
*
- * Params : r2 = address of aborted instruction
- * : r3 = saved SPSR
+ * Params : r4 = aborted context pc
+ * : r5 = aborted context psr
*
* Returns : r0 = address of abort
* : r1 = FSR, bit 11 = write
@@ -22,8 +22,8 @@
ENTRY(v4t_early_abort)
mrc p15, 0, r1, c5, c0, 0 @ get FSR
mrc p15, 0, r0, c6, c0, 0 @ get FAR
- do_thumb_abort fsr=r1, pc=r2, psr=r3, tmp=r3
- ldreq r3, [r2] @ read aborted ARM instruction
+ do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3
+ ldreq r3, [r4] @ read aborted ARM instruction
bic r1, r1, #1 << 11 | 1 << 10 @ clear bits 11 and 10 of FSR
tst r3, #1 << 20 @ check write
orreq r1, r1, #1 << 11