Date: Thu, 31 Mar 2011 10:56:08 -0500 From: Mark Tinguely <marktinguely@gmail.com> To: Damjan Marion <damjan.marion@gmail.com> Cc: freebsd-arm@freebsd.org Subject: Re: Beagleboard stuff Message-ID: <4D94A418.9070608@gmail.com> In-Reply-To: <9BD97855-B47E-4CF0-8DC5-29F1F4A8EA27@gmail.com> References: <E1Q4X5B-000J64-DJ@groundzero.grondar.org> <20110329150903.GA4069@ci0.org> <7519F558-CEA3-41A9-8AA6-5A3234C4F1A8@gmail.com> <1301451934.2217.19.camel@nsl> <4D92EE2D.8000107@gmail.com> <4D947EF5.90108@gmail.com> <9BD97855-B47E-4CF0-8DC5-29F1F4A8EA27@gmail.com>
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On 3/31/2011 10:02 AM, Damjan Marion wrote: > Hi Mark, > > On Mar 31, 2011, at 3:17 PM, Mark Tinguely wrote: >> I have been thinking of the ARMv7 / SMP infrastructure. >> >> http://www.tinguelys.info/mark/freebsd/v7Roadmap.txt >> >> Disclaimer: recently, I am less sure that all ARMv6 cores can do TEX remap. >> >> To really take advantage of the new ARM features, we need a newer compiler. I have an old hacked up early gcc 4.5 snapshot, but it does not compile itself. clang does not cross compile and I have not tried to compile it under ARM. >> >> Does the OMAP4 implement the MP extensions? They would simply the SMP coherency/TLB operations by not having to perform an IPI > OMAP 4 uses standard Cortex-A9 core. Can you take a look into "ARM DDI 0407" document? It describer MPCore functionality on Cortex-A9 CPUs so it will probably answer your question. > > Damjan Last time that I had looked, TI had not released the technical information on the OMAP4 to the general public. I will look again. The MP core extensions are optional. Thank-you, --Mark.
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