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[Question] What's difference between ioremap_wc and ioremap_uncached_acc

To: linux-mips@linux-mips.org
Subject: [Question] What's difference between ioremap_wc and ioremap_uncached_accelerated?
From: Chen Jie <chenj@lemote.com>
Date: Thu, 17 Nov 2011 17:39:56 +0800
Sender: linux-mips-bounce@linux-mips.org
Hi all,

I noticed mips defines an ioremap_uncached_accelerated in
arch/mips/include/asm/io.h, not reuse the name of "ioremap_wc", what
is the difference?

Some drivers use ioremap_wc, e.g. ttm_bo_ioremap() in
drivers/gpu/drm/ttm/ttm_bo_util.c, I wonder whether these ioremap_wc
invocations can be replaced with "ioremap_uncached_accelerated"?



Regards,
-- Chen Jie

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