[PATCH 18/21] ARM: drop SMP support for ARM11MPCore

[Joel Stanley]

On Fri, 31 Mar 2023 at 12:54, Arnd Bergmann <arnd at kernel.org> wrote:
>
> On Thu, Mar 30, 2023, at 13:28, Joel Stanley wrote:
> > On Mon, 27 Mar 2023 at 12:18, Arnd Bergmann <arnd at kernel.org> wrote:
> >
> >> Take the easy way out here and drop support for multiprocessing on
> >> ARMv6, along with the CONFIG_DMA_CACHE_RWFO option and the cache
> >> management implementation for it. This also helps with other ARMv6
> >> issues, but for the moment leaves the ability to build a kernel that
> >> can run on both ARMv7 SMP and single-processor ARMv6, which we probably
> >> want to stop supporting as well, but not as part of this series.
> >
> > Why's that? I currently build a kernel for the ast2600 (dual core
> > cortex a7) and ast2500 (arm1176).

> If this works out, we'll be able to have a combined ast2400/
> ast2500/omap1/omap2/imx2/imx3 kernel separate from ast2600/
> omap3/imx5, but hopefully not more kernels that anyone needs
> to test.

Thanks for the explanation. This all makes sense.

Cheers,

Joel