On Fri, Oct 24, 2008 at 9:21 AM, Carl-Daniel Hailfinger < c-d.hailfinger.devel.2006@gmx.net> wrote:
On 24.10.2008 17:13, Carl-Daniel Hailfinger wrote:
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
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.
From the BKDG:
3.1 Configuration Space Accesses The AMD Athlon™ 64 and AMD Opteron™ Processors implement configuration space as defined in the PCI Local Bus Specification, Rev. 2.2, and the HyperTransport™ I/O Link Specification, Rev. 1.03.
I read that to mean that even though the processor reports Rev 1.02, it's 1.03.
Thanks, Myles