linux-kernel - Re: [PATCH] mips: Realtek RTL: select NO_EXCEPT

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Message-ID: <20230219103112.GA4095@alpha.franken.de>
Date:   Sun, 19 Feb 2023 11:31:12 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Olliver Schinagl <oliver@...inagl.nl>
Cc:     Sander Vanheule <sander@...nheule.net>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mips: Realtek RTL: select NO_EXCEPT_FILL

On Sun, Feb 19, 2023 at 10:27:17AM +0100, Olliver Schinagl wrote:
> It's still odd though; as we do not have _anything_ PCI, but it
> SWAP_IO_SPACE causes the crash.

but something uses readX/write() calls. If you aren't using any driver
existing driver but only newly written dedicated for that SOC
you could use raw_read/raw_writeX() instead. These type of functions
are always using native endianess.

> What makes SWAP_IO_SPACE generic then? :)

als long as hardware presents memory used with readX/writeX is
seen as little endian independant from CPU endianess it's generic.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]