linux-kernel - Re: decompress.c : Add cache support

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Message-ID: <CAGVrzcb665srrVTojY+E1Raec5=E6oK+CAdPrP3Fx15Zt+piBQ@mail.gmail.com>
Date:	Tue, 22 Jul 2014 10:14:13 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Nick Krause <xerofoify@...il.com>
Cc:	Ralf Baechle <ralf@...ux-mips.org>,
	Antony Pavlov <antonynpavlov@...il.com>,
	John Crispin <blogic@...nwrt.org>,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: decompress.c : Add cache support

2014-07-21 21:24 GMT-07:00 Nick Krause <xerofoify@...il.com>:
> Hey Ralf and others
> We seem to be flushing this cache after decompressing the kernel on
> mips. Can't we cache this?

I am not sure I fully understand what you mean here. What would we be
caching, instruction, data, both?

> If anyone has any advice on how to fix this it would be great:).
> Nick

One patch that I carried locally and which works for a bunch of
MIPS32r1 compatible platforms out there is this one, I tried to
address some of Ralf's comment as well about the code duplication
(maybe I can get around to resubmit it):

http://patchwork.linux-mips.org/patch/1565/
-- 
Florian
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