Re: [PATCH v2 1/4] RISC-V: Fix ioremap_cache() and ioremap_wc() for systems with Svpbmt

[Christoph Hellwig]

On Thu, Sep 22, 2022 at 09:35:56AM -0700, Palmer Dabbelt wrote:
> Sorry I missed this, I thought it was just part of the rest of this patch
> set.  That said, I'm not actually sure this is a critical fix: sure it's a
> performance problem, and if some driver is expecting ioremap_cache() to go
> fast then possibly a pretty big one, but the only Svpmbt hardware that

More importantly nothing should be using ioremap_cache at all.  It is
an API that has long been deprecated in favor of memremap.