Re: [PATCH 1/7] mips: dmi: Fix early remap on MIPS32

[Jiaxun Yang]

在2023年11月28日十一月 上午11:34，Serge Semin写道：
> On Mon, Nov 27, 2023 at 09:08:11PM +0000, Jiaxun Yang wrote:
[...]
>
> Indeed. Thanks for pointing that out. In the last days several times I
> was looking at that line and for some reason UNCAC_BASE seemed as
> CAC_BASE to me.) Based on what both IO_BASE and UNCAC_BASE are defined
> as of the uncached region anyway, then it should be safe for any
> currently supported MIPS64 (including the Loongson's) to use ioremap()
> in place of dmi_early_remap(). So basically my current patch in the
> subject won't change the method semantics. Let's not to try to fix a
> problem which doesn't exist then, and keep the patch as is especially
> seeing that the alternatives might still cause some troubles. Will you
> be ok with that?

I'd say the safest option is to use CKSEG0 or TO_CAC here, but I'm fine
with ioremap as long as the semantic remains uncached on Loongson.

Thanks.
>
> -Serge(y)
>
>> 
[...]
-- 
- Jiaxun