[PATCH 06/10] soc/qbman: Add ARM equivalent for flush_dcache_range()

Russell King - ARM Linux
2017-01-30T15:19:33Z

On Fri, Jan 27, 2017 at 05:41:10PM +0100, Arnd Bergmann wrote:
> On Thu, Jan 26, 2017 at 6:08 AM, Scott Wood <scott.wood@nxp.com> wrote:
> > And even if we did all that, there would still be other manual cache
> > manipulation left in this driver, to deal with its cacheable register
> > interface.
>
> I thought we had concluded that "cacheable register" is something
> that cannot work reliably on ARM at all when this came up before.
> Any updates on that?

There's a big comment in arch/arm/include/asm/io.h which explains
everything. Nothing there is likely to change.

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