Date: Mon, 16 Jul 2007 08:42:53 -0700 From: Nate Lawson <nate@root.org> To: John Baldwin <jhb@freebsd.org> Cc: acpi@freebsd.org, freebsd-current@freebsd.org Subject: Re: smi speedstep patch Message-ID: <469B91FD.6080904@root.org> In-Reply-To: <200707160845.26597.jhb@freebsd.org> References: <46735262.50601@root.org> <4673768D.1050805@root.org> <46741947.3050200@root.org> <200707160845.26597.jhb@freebsd.org>
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John Baldwin wrote: > On Saturday 16 June 2007 01:09:27 pm Nate Lawson wrote: >> Nate Lawson wrote: >>> Nate Lawson wrote: >>>> If you have a pentium 3 that works for speedstep, please try this patch. >>>> It fixes the PAE case. Compile-tested. >>> Hmm, I see it's no longer getting the physical address, just virtual. >>> So need to fix that part. >> Attached is the updated patch. It uses the low kernel map where P=V and >> fixes the callback. I just need someone who is using smi-speedstep >> (440bx chipset with pentium 3) to make sure the device still attaches. >> Patch should work on 6.x and 7.x. > > Why do you need a V == P page? I don't. I was just trying to choose a range where I was guaranteed there would be any mapping at all. Aren't there some physical regions (VGA, ISA hole) that don't have a mapping? Thus, it's best to ask for RAM at 1 MB+ unless the device has special requirements, right? BTW, this is already committed to -current. -Nate
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