Date: Thu, 22 Nov 2012 23:39:09 +1300 From: Andrew Turner <andrew@fubar.geek.nz> To: Warner Losh <imp@bsdimp.com> Cc: freebsd-arm@freebsd.org, cognet@freebsd.org Subject: Re: ARM/SMP, Some patches for review. Message-ID: <20121122233909.66c7f479@fubar.geek.nz> In-Reply-To: <AEDD03F7-B55D-424D-945D-6F0ED43B8A1A@bsdimp.com> References: <50AA4E87.3000505@semihalf.com> <CACfq093LakTKEf8E3L5S7QnYcgdnBVpnFSRJo%2BMx=mfgbXpg0g@mail.gmail.com> <50ACE2B4.8010904@semihalf.com> <CACfq091X6BK7S5jenr46=iwpsyGEz1FdnRLMhXhPdZ4jd06g0w@mail.gmail.com> <CAJ-Vmombr4WPbRzrYtEps00DHSfPxNtc7crzuhrnvn3gD_-a%2Bw@mail.gmail.com> <AEDD03F7-B55D-424D-945D-6F0ED43B8A1A@bsdimp.com>
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On Wed, 21 Nov 2012 11:44:00 -0700 Warner Losh <imp@bsdimp.com> wrote: > Too bad it isn't a strict ordering, because then you could assign > numbers to the sequence and use >=. armv8 kinda puts a kink into > that, from what I've heard so far... It won't work for the 64-bit stuff but my understanding is the 32-bit side of ARMv8 is similar enough to ARMv7 that a sequence would work. It will need to be decided how we handle AArch64 (arm64) as some parts are different, e.g. the instruction set and assembly is incompatible, while other parts are shared, e.g. the page table layout are similar to the long format in Cortex-A. Andrew
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