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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-26 13:37:35 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-02 11:56:10 +0200 |
| commit | 8dfe7ac96fedd4f5219879f63a8a546a33609daf (patch) | |
| tree | c723c0845d9f2080d9a0517bd2a94014870d7134 /arch/arm/mm/pabort-legacy.S | |
| parent | ARM: entry: re-allocate registers in irq entry assembly macros (diff) | |
| download | linux-8dfe7ac96fedd4f5219879f63a8a546a33609daf.tar.xz linux-8dfe7ac96fedd4f5219879f63a8a546a33609daf.zip | |
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.S | 9 |
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) |