linux-kernel - Re: swiotlb: remove __weak hooks in favour of architecture-specific functions

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Message-ID: <4A1585AA.9010002@oracle.com>
Date:	Thu, 21 May 2009 09:47:38 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Ian Campbell <ian.campbell@...rix.com>
CC:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Becky Bruce <beckyb@...nel.crashing.org>,
	Olaf Kirch <okir@...e.de>, Ingo Molnar <mingo@...e.hu>,
	Greg KH <gregkh@...e.de>,
	xen-devel <xendevel@...ts.xensource.com>,
	x86 maintainers <x86@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Tony Breeds <tony@...eyournoodle.com>
Subject: Re: swiotlb: remove __weak hooks in favour of architecture-specific
 functions

Ian Campbell wrote:
> At the end of this series there are no more __weak functions in
> lib/swiotlb.c
> 
> The series adds several hook functions to the x86 architecture. Would
> they be preferred as a struct x86_swiotlb_ops or as individual hooks?
> 
> I was unsure what to do about powerpc in most places since the
> existing support seems to in-progress so it wasn't always clear where
> to put the implementation. If there is a tree somewhere with more
> complete support I'll be happy to provide additional patches.
> 
> Boot tested on x86 under xen but not even compiled for ia64 or
> powerpc. If someone can point me to a decent source of cross compilers
> I can sort that out. (http://www.kernel.org/pub/tools/crosstool/ seems
> to be out-of-date and only has ia64 in any case)

Try these.  They are fairly current.  I have used several of them.

http://bakeyournoodle.com/cross/

-- 
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/
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