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| author | Russell King | 2011-06-25 20:25:02 +0200 |
|---|---|---|
| committer | Russell King | 2011-06-30 12:04:59 +0200 |
| commit | 8b4186160b7894ca4583f702a562856d5d9e9118 (patch) | |
| tree | d5937a74e6d3f0738c3ba7eb9383acf51202e62d /arch/arm/kernel/entry-armv.S | |
| parent | ARM: entry: rejig register allocation in exception entry handlers (diff) | |
| download | kernel-qcow2-linux-8b4186160b7894ca4583f702a562856d5d9e9118.tar.gz kernel-qcow2-linux-8b4186160b7894ca4583f702a562856d5d9e9118.tar.xz kernel-qcow2-linux-8b4186160b7894ca4583f702a562856d5d9e9118.zip | |
ARM: entry: prefetch abort helper: pass aborted pc in r4 rather than r0
This avoids unnecessary instructions for CPUs which implement the IFAR
(instruction fault address register).
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 582bb2310446..d644d0240ad3 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -45,7 +45,7 @@ .endm .macro pabt_helper - mov r0, r4 @ pass address of aborted instruction. + @ PABORT handler takes fault address in r4 #ifdef MULTI_PABORT ldr ip, .LCprocfns mov lr, pc |