linux-kernel - Re: [RFC PATCH 10/20] powerpc/io: Remove PPC_INDIRECT

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Message-Id: <e16f8cd7-aa46-4f43-926d-21f2b77eb213@app.fastmail.com>
Date: Thu, 14 Nov 2024 15:41:26 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Michael Ellerman" <mpe@...erman.id.au>, linuxppc-dev@...ts.ozlabs.org
Cc: linux-kernel@...r.kernel.org, "Jeremy Kerr" <jk@...abs.org>,
 "Geoff Levand" <geoff@...radead.org>
Subject: Re: [RFC PATCH 10/20] powerpc/io: Remove PPC_INDIRECT_MMIO

On Thu, Nov 14, 2024, at 13:50, Michael Ellerman wrote:
> The Cell blade support was the last user of PPC_INDIRECT_MMIO, so it can
> now be removed.
>
> PPC_INDIRECT_PIO is still used by Power8 powernv, so it needs to remain.
>
> Signed-off-by: Michael Ellerman <mpe@...erman.id.au>

I think the powernv side only uses parts of PPC_INDIRECT_PIO,
so there is a good chance of simplifying that code further if
we want to.

This bit looks great so far.

Reviewed-by: Arnd Bergmann <arnd@...db.de>