Re: [PATCH v2 6/6] x86, pat: Update documentation for WT changes

From: Andy Lutomirski
Date: Wed Sep 10 2014 - 14:31:08 EST


On Wed, Sep 10, 2014 at 9:51 AM, Toshi Kani <toshi.kani@xxxxxx> wrote:
> +Drivers may map the entire NV-DIMM range with ioremap_cache and then change
> +a specific range to wt with set_memory_wt.

That's mighty specific :)

It's also not all that informative. Are you supposed to set the
memory back before iounmapping? Can you do this with set_memory_wc on
an uncached mapping?

--Andy
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