[coreboot] HT revision 1.02 in K8

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Fri Oct 24 17:13:07 CEST 2008


Hi,

I'm getting the following message from lspci on my K8 machine:

00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] HyperTransport Technology Configuration [1022:1100]
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Capabilities: [80] HyperTransport: Host or Secondary Interface
                !!! Possibly incomplete decoding for revision 1.02
                Command: WarmRst+ DblEnd-
                Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO-
<CRCErr=0
                Link Config: MLWI=16bit MLWO=16bit LWI=16bit LWO=16bit
                Revision ID: 1.02
        Kernel modules: ipmi_si
00: 22 10 00 11 00 00 10 00 00 00 00 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 80 00 00 00 00 00 00 00 00 00 00 00
40: 01 01 01 00 01 01 01 00 01 01 01 00 01 01 01 00
50: 01 01 01 00 01 01 01 00 01 01 01 00 01 01 01 00
60: 00 00 00 00 e4 00 00 00 0f cc 00 0f 0c 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 08 00 01 21 20 00 11 11 22 05 35 80 02 00 00 00
90: 69 01 61 01 00 00 ff 00 07 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Note the warning about "Possibly incomplete decoding" which stems from
the fact that the processor mentions HT revision 1.02 which is the last
non-public revision. Every revision from 1.03 and beyond seems to be
publically available. Now the big question is: Can we decode HT 1.02
like HT 1.03 or have there been fundamental changes in between? I'd like
to create a patch for PCIutils (lspci) so we can have full info without
a warning message.

Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/





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