Re: [PATCH] S390: add pci_iomap_wc() and pci_iomap_wc_range()

From: Ingo Molnar
Date: Fri Aug 28 2015 - 02:06:16 EST

* Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx> wrote:

> From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
> S390 requires its own implementation of pcio_iomap*() calls
> is because it has its "BAR spaces are not disjunctive on s390
> so we need the bar parameter of pci_iomap to find the corresponding
> device and create the mapping cookie" -- in summary, it has its own
> lookup/lock solution.
> It does not include asm-generic/pci_iomap.h
> Since it currenty maps ioremap_wc() to ioremap_nocache() and that's
> the architecture default we can easily just map the wc calls to
> the default calls as well.
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@xxxxxxxxxxxx>
> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> Cc: linux-fbdev@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: Borislav Petkov <bp@xxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Reported-by: 0 day bot
> Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx>
> ---
> This broke through some series that went into Ingo's tip tree which
> I added. As such I *think* this should go through Ingo's tip tree.
> Let me know. Up to you guys.

I fixed the changelog to explain all this.

Also, is there any other architecture that got broken by:

1b3d4200c1e0 PCI: Add pci_iomap_wc() variants



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