[Linux-Xtensa] Re: xtensa: CONFIG_ARCH_HAS_SMP?

Max Filippov jcmvbkbc at gmail.com
Mon Mar 25 06:07:36 PDT 2013

Hi Paul,

On Mon, Mar 25, 2013 at 3:14 PM, Paul Bolle <pebolle at tiscali.nl> wrote:
> 0) Commit 0d456bad36d42d16022be045c8a53ddbb59ee478 ("xtensa: add support
> for the XTFPGA boards") added these lines to
> [...]/platforms/xtfpga/include/platform/hardware.h:
>     #ifdef CONFIG_ARCH_HAS_SMP
>     #define DUART16552_INTNUM       XCHAL_EXTINT3_NUM
>     #define OETH_IRQ                XCHAL_EXTINT4_NUM
>     #else
>     [...]
> 1) But there's nothing related to CONFIG_ARCH_HAS_SMP in the tree. Was
> perhaps CONFIG_SMP intended? Or can these lines be dropped?

this was a part of logic that used to map external IRQs to different
internal IRQs depending on SMP interrupt distributor presence. These
lines may be dropped as this mapping will be a part of IRQ controller
code in the upcoming SMP-enabling patches.

-- Max

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