[PATCH 2/2] powerpc/e500mc: Doorbells need to be taken w/exceptionsdisabled
Liu Dave
DaveLiu at freescale.com
Fri Jan 9 13:34:59 EST 2009
Acked-by: Dave Liu <daveliu at freescale.com>
> -----Original Message-----
> From: linuxppc-dev-bounces+daveliu=freescale.com at ozlabs.org
> [mailto:linuxppc-dev-bounces+daveliu=freescale.com at ozlabs.org]
> On Behalf Of Kumar Gala
> Sent: 2009?1?9? 8:15 AM
> To: linuxppc-dev at ozlabs.org
> Subject: [PATCH 2/2] powerpc/e500mc: Doorbells need to be
> taken w/exceptionsdisabled
>
> We use Doorbell interrupts for IPIs and thus we need to make
> sure we aren't
> interrupted in the process of processing the IPI.
>
> Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
> ---
> arch/powerpc/kernel/head_fsl_booke.S | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/kernel/head_fsl_booke.S
> b/arch/powerpc/kernel/head_fsl_booke.S
> index 6062669..475c937 100644
> --- a/arch/powerpc/kernel/head_fsl_booke.S
> +++ b/arch/powerpc/kernel/head_fsl_booke.S
> @@ -698,7 +698,7 @@ interrupt_base:
> /* Performance Monitor */
> EXCEPTION(0x2060, PerformanceMonitor,
> performance_monitor_exception, EXC_XFER_STD)
>
> - EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_EE)
> + EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_STD)
>
> /* Debug Interrupt */
> DEBUG_DEBUG_EXCEPTION
> --
> 1.5.6.5
>
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