Re: [PATCH 06/26] ia64: rename ioremap_nocache to ioremap_uc
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- To: Christoph Hellwig <hch@xxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, Michal Simek <monstr@xxxxxxxxx>, Greentime Hu <green.hu@xxxxxxxxx>, Vincent Chen <deanbo422@xxxxxxxxx>, Guan Xuetao <gxt@xxxxxxxxxx>, x86@xxxxxxxxxx
- Subject: Re: [PATCH 06/26] ia64: rename ioremap_nocache to ioremap_uc
- From: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
- Date: Sat, 17 Aug 2019 19:00:48 +0300
- Cc: linux-alpha@xxxxxxxxxxxxxxx, linux-snps-arc@xxxxxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, nios2-dev@xxxxxxxxxxxxxxxxxxxxxx, openrisc@xxxxxxxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <20190817073253.27819-7-hch@lst.de>
- References: <20190817073253.27819-1-hch@lst.de> <20190817073253.27819-7-hch@lst.de>
- User-agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0
Hello!
On 17.08.2019 10:32, Christoph Hellwig wrote:
On ia64 ioremap_nocache fails if attributs don't match. Not other
Attributes. :-)
architectures does this, and we plan to get rid of ioremap_nocache.
So get rid of the special semantics and define ioremap_nocache in
terms of ioremap as no portable driver could rely on the behavior
anyway.
However x86 implements ioremap_uc with a in a similar way as the ia64
"With a" not really needed?
version of ioremap_nocache, so implement that instead.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
[...]
MBR, Sergei
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