Re: [PATCH V3 3/4] ARM: Xilinx: base header files and assembly macros

From: Arnd Bergmann
Date: Thu Feb 17 2011 - 10:19:02 EST


On Thursday 17 February 2011, Russell King - ARM Linux wrote:
> > Actually, for correctness you should use the regular readl/writel, not
> > the __raw_ versions, which can result in reordered or partial accesses
> > on the bus.
>
> Not in the decompressor. readl/writel are unsupported there - the
> decompressor doesn't have the L2 cache support code and so the barriers
> necessary for readl/writel cause link errors.

Ah right, of course. Sorry for the confusion.

Arnd
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