Date: Tue, 2 Nov 2010 09:13:18 -0400 From: Justin Hibbits <jrh29@alumni.cwru.edu> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: freebsd-sparc64@freebsd.org, freebsd-ppc@freebsd.org Subject: Re: Review request -- splitting OF enumeration from nexus Message-ID: <AANLkTikWd8NVaLXa2hnCcasmjQtsGzkWw5Xfx_-sruza@mail.gmail.com> In-Reply-To: <AANLkTi=gRYzoCeWe=6Wd3JbfAKtbT4FJpT_BUYrsAJsX@mail.gmail.com> References: <4CCDD51F.2040003@freebsd.org> <AANLkTi=gRYzoCeWe=6Wd3JbfAKtbT4FJpT_BUYrsAJsX@mail.gmail.com>
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On Mon, Nov 1, 2010 at 11:04 AM, Justin Hibbits <jrh29@alumni.cwru.edu>wrote: > On Sun, Oct 31, 2010 at 4:44 PM, Nathan Whitehorn <nwhitehorn@freebsd.org>wrote: > >> Nexus on OF platforms doesn't behave like nexus on x86, which generates >> some periodic difficulty with cryptosoft or syscons attaching to all devices >> and taking over the system when someone makes a wrong assumption. I have >> done some work to split out OF enumeration into a new, acpi(4)-like bus >> called ofwbus that does all of the OF enumeration previously done by >> nexus(4). The patch can be found at >> http://people.freebsd.org/~nwhitehorn/ofwbus.diff. >> >> Doing this also provides a number of other benefits: it shares code >> between PowerPC and sparc64, unifies the AIM and Book-E nexus >> implementations on PPC, and makes it easier to have non-Open Firmware >> platforms on PPC (the original motivation for the work). I have tested this >> code with no obvious problems on a variety of Apple PPC machines and a Sun >> Ultra 5. More testing and comments would be much appreciated. If no has any >> objections, I will commit these changes in 2 weeks. >> -Nathan >> > > Building world now, and will test when I get home this evening. > > A note to others: powerpc/powerpc/nexus.c is a resurrected file, so I > needed to copy it from powerpc/aim/nexus.c before the patch would apply. > > - Justin > > It's been up for 13 hours now with no problems. Machine: G4 1.25GHz MDD. - Justin
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