Re: [Openvortex-dev] VIA fix?

[Seg]

> This fix works by adjusting the bit called ?Extend PCI#2 Internal Master
> for Efficient Handling of Dummy Requests? for the register ?PCI #2
> Master Control? of the AGP controller in VIA north-bridges.  This should
> be enabled for the best Vortex 2 compatibility on VIA motherboards.  The
> default setting in the chip itself if Disabled, and the BIOS must set
> this to 1, as per VIA?s recommendations.  Unfortunately, some
> manufacturers don?t and hence you have to set in the follwing way.
> 
> <snip generic WCPREDIT instructions>
> 
> Type this in: Bus 0, Device 1, Function 0.  And, for Register put in 42
> and in Data add 10 to the current value.
> 
> The link is here but it can also be dug up from the google cache:
> http://myweb.tiscali.co.uk/chris.day/vortexfix00.html
> 
> setpci should also do that, just `setpci -d '12eb:*' 42.B` to get the
> value, and `setpci -d '12eb:*' 42.B new_value` to set the value,
> where new_value is the value that was read + 10.

Okay, I just tried messing with this. I don't understand this +10 stuff.
On my system it defaults to 0x80, I tried setting it +10, 0x8a in hex,
still hangs immediately. So I try counting down from FF, and at 0xfe it
still hangs. It seems the higher the value, the longer it lasts. At 0xfe
it will manage to play for maybe 15 seconds, then hang.

So basically, nothing less than FF, the maximum value, will work on my
system. So, shall we start building a VIA 'black list'? Anyone else got
a VIA system? Here's all the lspci you could ever need for my system:

lspci -n
00:00.0 Class 0600: 1106:0305 (rev 02)
00:01.0 Class 0604: 1106:8305
00:07.0 Class 0601: 1106:0686 (rev 22)
00:07.1 Class 0101: 1106:0571 (rev 10)
00:07.2 Class 0c03: 1106:3038 (rev 10)
00:07.3 Class 0c03: 1106:3038 (rev 10)
00:07.4 Class 0680: 1106:3057 (rev 30)
00:09.0 Class 0401: 12eb:0002 (rev fe)
00:0f.0 Class 0200: 10ec:8139 (rev 10)
01:00.0 Class 0300: 10de:0029 (rev 11)

lspci -vv
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133]
(rev 02)
        Subsystem: ABIT Computer Corp. KT7/KT7-RAID/KT7A/KT7A-RAID
Mainboard
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
        Latency: 8
        Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
        Capabilities: [a0] AGP version 2.0
                Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2,x4
                Command: RQ=0 SBA- AGP+ 64bit- FW- Rate=x4
        Capabilities: [c0] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
(prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
        Latency: 0
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        Memory behind bridge: da000000-dbffffff
        Prefetchable memory behind bridge: d8000000-d9ffffff
        BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South]
(rev 22)
        Subsystem: ABIT Computer Corp.: Unknown device 0000
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus
Master IDE (rev 10) (prog-if 8a [Master SecP PriP])
        Subsystem: VIA Technologies, Inc. VT8235 Bus Master
ATA133/100/66/33 IDE
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32
        Region 4: I/O ports at d000 [size=16]
        Capabilities: [c0] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00
[UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32, cache line size 08
        Interrupt: pin D routed to IRQ 9
        Region 4: I/O ports at d400 [size=32]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00
[UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32, cache line size 08
        Interrupt: pin D routed to IRQ 9
        Region 4: I/O ports at d800 [size=32]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev
30)
        Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin ? routed to IRQ 12
        Capabilities: [68] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.0 Multimedia audio controller: Aureal Semiconductor Vortex 2 (rev
fe)
        Subsystem: Aureal Semiconductor AU8830 Vortex 3D Digital Audio
Processor
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (1000ns min, 3000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 5
        Region 0: Memory at dd000000 (32-bit, non-prefetchable)
[size=256K]
        Region 1: I/O ports at dc00 [size=8]
        Region 2: I/O ports at e000 [size=8]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RT8139
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (8000ns min, 16000ns max)
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at e400 [size=256]
        Region 1: Memory at dd040000 (32-bit, non-prefetchable)
[size=256]
        Expansion ROM at <unassigned> [disabled] [size=64K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: nVidia Corporation NV5 [RIVA TNT2
Ultra] (rev 11) (prog-if 00 [VGA])
        Subsystem: Guillemot Corporation Maxi Gamer Xentor 32
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 248 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at da000000 (32-bit, non-prefetchable)
[size=16M]
        Region 1: Memory at d8000000 (32-bit, prefetchable) [size=32M]
        Expansion ROM at <unassigned> [disabled] [size=64K]
        Capabilities: [60] Power Management version 1
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [44] AGP version 2.0
                Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2,x4
                Command: RQ=31 SBA- AGP+ 64bit- FW- Rate=x4