Date: Sat, 27 Oct 2007 16:18:07 -0700 From: Marcel Moolenaar <xcllnt@mac.com> To: Erik Trulsson <ertr1013@student.uu.se> Cc: current@freebsd.org Subject: Re: New-bus unit wiring via hints.. Message-ID: <899CA6AE-C21C-45EE-B95A-787F587616A6@mac.com> In-Reply-To: <20071027230132.GA12961@owl.midgard.homeip.net> References: <200710111741.34992.jhb@FreeBSD.org> <200710151216.36509.jhb@freebsd.org> <3E7A944C-6182-41A1-8881-C4B94428B65A@mac.com> <200710151510.35000.jhb@freebsd.org> <20071027174205.GK39759@funkthat.com> <D89F1D4B-D23A-4B8A-89D6-4C98B15AD5FA@mac.com> <20071027175856.GL39759@funkthat.com> <9F674BF7-58E2-4DC5-A082-F5128316F889@mac.com> <20071027214253.GA12390@owl.midgard.homeip.net> <3117246F-26D0-414B-9CBA-65F460F5EA39@mac.com> <20071027230132.GA12961@owl.midgard.homeip.net>
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On Oct 27, 2007, at 4:01 PM, Erik Trulsson wrote: > On Sat, Oct 27, 2007 at 03:09:38PM -0700, Marcel Moolenaar wrote: >> >> On Oct 27, 2007, at 2:42 PM, Erik Trulsson wrote: >> >>> On Sat, Oct 27, 2007 at 12:09:29PM -0700, Marcel Moolenaar wrote: >>>> >>>> On Oct 27, 2007, at 10:58 AM, John-Mark Gurney wrote: >>>> >>>>> Yeh, you're solution was to simply declare that anyone who >>>>> knows that >>>>> COM1 is at 0x3f8 is wrong, and to use a different, yet again >>>>> arbitrary >>>>> solution which is which is listed first in ACPI... >>>> >>>> Exactly. Anyone who "knows" that COM1 is at 0x3f8 while >>>> the computer right in front of them clearly states that >>>> COM1 is at 0x2f8 is in denial. >>> >>> If I say in the BIOS setup screen that the first serial port is >>> to use 0x3f8, then that is the port which I want sio0 to attach to, >>> regardless of in which order FreeBSD sees them enumerated. >> >> What is the first serial port in the BIOS? > > It is the port which is labeled 'Serial Port 1' or something similar. I see. Some argue it's the UART at port 0x3f8, because that's how things have been documented. I like your definition, but unfortunately this thread is mostly about how we want sio0 at a fixed port by virtue of hints. >> Is that not the one >> that's enumerated first? > > Not necessarily, no. It should be, but is not always. Ok. What's buggy if it's not -- ACPI? > BIOSs are fairly often buggy or get things wrong. Being able to > override > the BIOS when it is wrong is a Good Thing. I would presume that we can patch the AML if it's an ACPI problem. That seems to me to be the right thing to do: you patch what is broken... -- Marcel Moolenaar marcelm@juniper.net
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