[LinuxBIOS] PIC mode or APIC mode
Beneo
beneo at comcast.net
Fri Apr 13 23:57:47 CEST 2007
When you say you enabled APIC mode, it is in the Broadcom southbridge, not
directly program the APIC or PIC themselves, right?
if so, I didn't change anything in term of Broadcom southbridge setting, I
changed Config.lb because the HT Topologies were different. I assume that
should have nothing to do with the issue. I can access APIC using base
address 0xFEC00000 and etc after LinuxBIOS finishes. So I assume APIC itself
is enabled.
Except this, do I have to something else?
Thanks
Beneo
----- Original Message -----
From: "Lu, Yinghai" <yinghai.lu at amd.com>
To: "Beneo" <beneo at comcast.net>; "Tom Sylla" <tsylla at gmail.com>
Cc: "Peter Stuge" <stuge-linuxbios at cdy.org>; <linuxbios at linuxbios.org>
Sent: Friday, April 13, 2007 1:52 PM
Subject: Re: [LinuxBIOS] PIC mode or APIC mode
> Did you change anything for BLAST except for rev F support?
>
> I enabled APIC mode for BLAST.
>
> YH
>
> -----Original Message-----
> From: Beneo [mailto:beneo at comcast.net]
> Sent: Friday, April 13, 2007 12:53 PM
> To: Tom Sylla; Lu, Yinghai
> Cc: linuxbios at linuxbios.org; Peter Stuge
> Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>
>
> I've got probably is a rev B, it is dead now,
> But I captured some dump before it went dead, I still try to understand
> why
> it runs in PIC mode... Does LinuxBIOS need to program PIC or APIC, I
> don't
> LinuxBIOS was doing that.. Would it cause problem if leave PIC/APIC
> unprogrammed?
>
> Beneo
>
> ----- Original Message -----
> From: "Tom Sylla" <tsylla at gmail.com>
> To: "Lu, Yinghai" <yinghai.lu at amd.com>
> Cc: <linuxbios at linuxbios.org>; "Peter Stuge" <stuge-linuxbios at cdy.org>;
> "Beneo" <beneo at comcast.net>
> Sent: Friday, April 13, 2007 11:55 AM
> Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>
>
>> woops, had that swapped. Rev A has 87427, B has 4307.
>>
>> On 4/13/07, Tom Sylla <tsylla at gmail.com> wrote:
>>> Explosion Rev A shipped with SCH430{4,7}. Explosion Rev B has a
> PC87427
>>> on it.
>>>
>>>
>>>
>>> On 4/13/07, Lu, Yinghai <yinghai.lu at amd.com> wrote:
>>> > The MB I got with SCH 4304, and schematic said PC87427...
>>> >
>>> > YH
>>> >
>>> > -----Original Message-----
>>> > From: Beneo [mailto:beneo at comcast.net]
>>> > Sent: Friday, April 13, 2007 11:12 AM
>>> > To: Lu, Yinghai; Peter Stuge; linuxbios at linuxbios.org
>>> > Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>>> >
>>> > it is SMSC SCH 4307, I ported some code for that serail, it works.
>>> >
>>> > Beneo
>>> >
>>> > ----- Original Message -----
>>> > From: "Lu, Yinghai" <yinghai.lu at amd.com>
>>> > To: "Beneo" <beneo at comcast.net>; "Peter Stuge"
>>> > <stuge-linuxbios at cdy.org>;
>>> > <linuxbios at linuxbios.org>
>>> > Sent: Friday, April 13, 2007 11:01 AM
>>> > Subject: RE: [LinuxBIOS] PIC mode or APIC mode
>>> >
>>> >
>>> > Good.
>>> >
>>> > I can not get serial output from that MB, what is your superio on
> the
>>> > MB?
>>> >
>>> > YH
>>> >
>>> > -----Original Message-----
>>> > From: Beneo [mailto:beneo at comcast.net]
>>> > Sent: Friday, April 13, 2007 10:59 AM
>>> > To: Lu, Yinghai; Peter Stuge; linuxbios at linuxbios.org
>>> > Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>>> >
>>> > It is not Blast, it is newer version of Broadcom board, it is
> called
>>> > Explosion board.
>>> >
>>> > Beneo
>>> >
>>> > ----- Original Message -----
>>> > From: "Lu, Yinghai" <yinghai.lu at amd.com>
>>> > To: "Beneo" <beneo at comcast.net>; "Peter Stuge"
>>> > <stuge-linuxbios at cdy.org>;
>>> > <linuxbios at linuxbios.org>
>>> > Sent: Friday, April 13, 2007 10:54 AM
>>> > Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>>> >
>>> >
>>> > > BLAST?
>>> > >
>>> > > That code in the tree should work.
>>> > >
>>> > > YH
>>> > >
>>> > > -----Original Message-----
>>> > > From: linuxbios-bounces at linuxbios.org
>>> > > [mailto:linuxbios-bounces at linuxbios.org] On Behalf Of Beneo
>>> > > Sent: Friday, April 13, 2007 10:48 AM
>>> > > To: Peter Stuge; linuxbios at linuxbios.org
>>> > > Subject: [LinuxBIOS] PIC mode or APIC mode
>>> > >
>>> > >
>>> > > I was working this Broadcom bcm 5785 based reference board with
>>> > > LinuxBIOS, I
>>> > > have a NIC interrupt related issue, the eth0 DHCP detection
> always
>>> > fail,
>>> > > so
>>> > > I can not get an IP address for that NIC. I did what Peter Stuge
>>> > > suggested
>>> > > to dump the /proc/interrupts. It turns out the Linux is using PIC
>>> > mode,
>>> > > not
>>> > > APIC mode. (Linux report multiple CPUs, so I assume Linux took MP
>>> > Table
>>> > > somewhat correctly)
>>> > >
>>> > > I checked chipset setting, the APIC indeed is enabled. I don't
> see
>>> > Linux
>>> > > is
>>> > > doing anything for PIC or APIC, I assume Linux kernel will
> correctly
>>> > > initialize PIC or APIC depends on MP Table reporting. right?
>>> > >
>>> > > If anybody has any idea on why Linux is running at PIC mode,
> Please
>>> > let
>>> > > me
>>> > > know. I will be very appreciated.
>>> > >
>>> > > Thanks
>>> > >
>>> > > Beneo
>>> > >
>>> > > --- LinuxBIOS /proc/interrupts look like this, it is in PIC mode
> --
>>> > > [root at localhost root]# cat /proc/interrupts
>>> > > CPU0 CPU1
>>> > > 0: 13538 1521 XT-PIC timer
>>> > > 1: 0 0 XT-PIC keyboard
>>> > > 2: 0 0 XT-PIC cascade
>>> > > 4: 302 153 XT-PIC serial
>>> > > 8: 1 0 XT-PIC rtc
>>> > > 14: 4729 1803 XT-PIC ide0
>>> > > NMI: 0 0
>>> > > LOC: 14778 14897
>>> > > ERR: 21478
>>> > > MIS: 0
>>> > >
>>> > >
>>> > > --- When using factory BIOS, the cat /proc/interrupts looks like
>>> > > this,
>>> > > it is
>>> > > in APIC mode.
>>> > > [root at localhost root]# cat /proc/interrupts
>>> > > CPU0 CPU1
>>> > > 0: 719 8393 IO-APIC-edge timer
>>> > > 1: 0 4 IO-APIC-edge keyboard
>>> > > 2: 0 0 XT-PIC cascade
>>> > > 4: 5 505 IO-APIC-edge serial
>>> > > 8: 0 1 IO-APIC-edge rtc
>>> > > 10: 0 2 IO-APIC-level ehci-hcd, usb-ohci,
>>> > usb-ohci
>>> > > 12: 1 6 IO-APIC-edge PS/2 Mouse
>>> > > 14: 1433 5111 IO-APIC-edge ide0
>>> > > 38: 7 112 IO-APIC-level eth0
>>> > > NMI: 0 0
>>> > > LOC: 9020 8869
>>> > > ERR: 0
>>> > > MIS: 0
>>> > >
>>> > >
>>> > >
>>> > >
>>> > > ----- Original Message -----
>>> > > From: "Peter Stuge" <stuge-linuxbios at cdy.org>
>>> > > To: <linuxbios at linuxbios.org>
>>> > > Sent: Monday, April 09, 2007 10:23 AM
>>> > > Subject: Re: [LinuxBIOS] IDE become readonly, why?
>>> > >
>>> > >
>>> > >> On Mon, Apr 09, 2007 at 10:02:15AM -0700, Beneo wrote:
>>> > >>> For the RTC patch, it is porting for a SMSC SIO, I didn't see
>>> > >>> LinuxBIOS has this SIO porting. The part number is SCH--4703, I
>>> > >>> don't know how to contribute it to LinuxBIOS tree.
>>> > >>
>>> > >> Ahh! It's new code, sorry, forgot that.
>>> > >>
>>> > >> Please have a look at
> http://linuxbios.org/Development_Guidelines to
>>> > >> learn most if not all you need to know to submit a patch.
>>> > >>
>>> > >> Also, when submitting patches, please make sure they apply
> cleanly
>>> > >> to
>>> > >> the very latest revision of the tree.
>>> > >>
>>> > >> The simplest way to do this is to always keep your own tree
> updated
>>> > >> by running svn up now and then, or when you see a new revision
>>> > >> announced on the list. After an update, there may be conflicts
> that
>>> > >> need to be resolved manually by you if you have been working on
> code
>>> > >> that was also changed in the new revision.
>>> > >>
>>> > >>
>>> > >>> I haven't get the chance to take look at my NIC issue yet, I
> will
>>> > >>> certainly check the interrupt when I get the chance.
>>> > >>
>>> > >> Feel free to ask the list if you run into trouble!
>>> > >>
>>> > >>
>>> > >> //Peter
>>> > >>
>>> > >> --
>>> > >
>>> > >
>>> > >
>>> > > --
>>> > > linuxbios mailing list
>>> > > linuxbios at linuxbios.org
>>> > > http://www.linuxbios.org/mailman/listinfo/linuxbios
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > > --
>>> > > linuxbios mailing list
>>> > > linuxbios at linuxbios.org
>>> > > http://www.linuxbios.org/mailman/listinfo/linuxbios
>>> > >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> > linuxbios mailing list
>>> > linuxbios at linuxbios.org
>>> > http://www.linuxbios.org/mailman/listinfo/linuxbios
>>> >
>>>
>>
>> --
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>> linuxbios at linuxbios.org
>> http://www.linuxbios.org/mailman/listinfo/linuxbios
>>
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