Re: [PATCH 07/14] drm/mgag200: Replace simple-KMS with regular atomic helpers

[Thomas Zimmermann <tzimmermann@xxxxxxx>]

Am 26.04.23 um 09:01 schrieb Thomas Zimmermann:
> Hi
>
> Am 26.04.23 um 01:39 schrieb kernel@xxxxxxxxxxxx:
> > I'm not sure if this information is useful, but we have found one 
> > system which
> > works with the 6.1 kernel.  I grabbed the lspci output from a working and
> > non-working system, pasted below.  Same kernel and same distro.
> >
> > BAD Dell R815 AMD
> > 0a:03.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA 
> > G200eW
>
> Thanks for this info. That's a G200eW, which uses slightly different 
> code within the driver. From the testing we've done, we didn't see the 
> bug either. So it's probably something very specific to your machine or 
> the G200EH model.

Oh, now I got it. This G200eW is broken. The other one is good. And the 
kernel is also broken on the G200EH?

Best regards
Thomas

> Best regards
> Thomas
>
> >          WPCM450 (rev 0a) (prog-if 00 [VGA controller])
> >         DeviceName: Embedded Video
> >         Subsystem: Dell Device 0444
> >         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
> > ParErr- Stepping- SERR- FastB2B- DisINTx-
> >         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
> > >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> >         Latency: 32 (4000ns min, 8000ns max), Cache Line Size: 64 bytes
> >         Interrupt: pin A routed to IRQ 5
> >         NUMA node: 0
> >         IOMMU group: 10
> >         Region 0: Memory at ec800000 (32-bit, prefetchable) [size=8M]
> >         Region 1: Memory at ef7fc000 (32-bit, non-prefetchable) 
> > [size=16K]
> >         Region 2: Memory at ee800000 (32-bit, non-prefetchable) [size=8M]
> >         Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
> >         Capabilities: [dc] Power Management version 1
> >                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
> > PME(D0-,D1-,D2-,D3hot-,D3cold-)
> >                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> > 00: 2b 10 32 05 07 00 90 02 0a 00 00 03 10 20 00 00
> > 10: 08 00 80 ec 00 c0 7f ef 00 00 80 ee 00 00 00 00
> > 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 44 04
> > 30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 10 20
> >
> > GOOD Dell R710 INTEL
> > 0a:03.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA 
> > G200eW
> >          WPCM450 (rev 0a) (prog-if 00 [VGA controller])
> >         DeviceName: Embedded Video
> >         Subsystem: Dell PowerEdge R710 MGA G200eW WPCM450
> >         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
> > ParErr- Stepping- SERR- FastB2B- DisINTx-
> >         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
> > >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> >         Latency: 32 (4000ns min, 8000ns max), Cache Line Size: 64 bytes
> >         Interrupt: pin A routed to IRQ 10
> >         Region 0: Memory at d5000000 (32-bit, prefetchable) [size=8M]
> >         Region 1: Memory at deffc000 (32-bit, non-prefetchable) 
> > [size=16K]
> >         Region 2: Memory at df000000 (32-bit, non-prefetchable) [size=8M]
> >         Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
> >         Capabilities: [dc] Power Management version 1
> >                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
> > PME(D0-,D1-,D2-,D3hot-,D3cold-)
> >                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> > 00: 2b 10 32 05 07 00 90 02 0a 00 00 03 10 20 00 00
> > 10: 08 00 00 d5 00 c0 ff de 00 00 00 df 00 00 00 00
> > 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 35 02
> > 30: 00 00 00 00 dc 00 00 00 00 00 00 00 0a 01 10 20
> >
> > Phil

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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