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* Experiencing FIFO underruns on Intel Skylake platform
@ 2015-05-19 11:20 Rainer Koenig
  2015-05-19 11:41 ` Jani Nikula
  0 siblings, 1 reply; 5+ messages in thread
From: Rainer Koenig @ 2015-05-19 11:20 UTC (permalink / raw)
  To: dri-devel

Hi,

I'm testing the vanilla kernel on prototype boards for Intel Skylake.
The graphics adapter on those boards identifies like this:

00:02.0 0300: 8086:1912 (rev 04) (prog-if 00 [VGA controller])
	Subsystem: 1734:121c
	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-
	Latency: 0
	Interrupt: pin A routed to IRQ 123
	Region 0: Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
	Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [40] Vendor Specific Information: Len=0c <?>
	Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0
			ExtTag- RBE+
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF
Not Supported
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF
Disabled
	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee00018  Data: 0000
	Capabilities: [d0] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [100 v1] #1b
	Capabilities: [200 v1] Address Translation Service (ATS)
		ATSCap:	Invalidate Queue Depth: 00
		ATSCtl:	Enable-, Smallest Translation Unit: 00
	Capabilities: [300 v1] #13
	Kernel driver in use: i915
	Kernel modules: i915


I'm running both Fedora 21 and OpenSUSE 13.2 on those boards at the
moment, both with a self compiled Kernel 4.1-rc4 (latest git pull was
today).

Problem: Whenever power management kicks in and blanks the screen the
systems behave very strange when trying to get the screen back. The
screen is not fully restored then, but when I move the mouse (Gnome 3 or
XFCE desktops) up and down the image rolls up and down like a curtain. I
see no mouse cursor anymore and can't resume to normal operation.

When this happens I see the following line in dmesg:

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun

Hardware is still the first prototypes for Skylake, BIOS is beta too.
But I wanted to give a note about that problem here, maybe someone has
an idea what is missing.

Regards
Rainer
-- 
Dipl.-Inf. (FH) Rainer Koenig
Project Manager Linux Clients
Dept. PDG WPS R&D SW OSE

Fujitsu Technology Solutions
Bürgermeister-Ullrich-Str. 100
86199 Augsburg
Germany

Telephone: +49-821-804-3321
Telefax:   +49-821-804-2131
Mail:      mailto:Rainer.Koenig@ts.fujitsu.com

Internet         ts.fujtsu.com
Company Details  ts.fujitsu.com/imprint.html
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: Experiencing FIFO underruns on Intel Skylake platform
  2015-05-19 11:20 Experiencing FIFO underruns on Intel Skylake platform Rainer Koenig
@ 2015-05-19 11:41 ` Jani Nikula
  2015-05-19 12:45   ` Rainer Koenig
  2015-05-20  8:17   ` Rainer Koenig
  0 siblings, 2 replies; 5+ messages in thread
From: Jani Nikula @ 2015-05-19 11:41 UTC (permalink / raw)
  To: Rainer Koenig, dri-devel; +Cc: intel-gfx


+intel-gfx

On Tue, 19 May 2015, Rainer Koenig <Rainer.Koenig@ts.fujitsu.com> wrote:
> Hi,
>
> I'm testing the vanilla kernel on prototype boards for Intel Skylake.
> The graphics adapter on those boards identifies like this:
>
> 00:02.0 0300: 8086:1912 (rev 04) (prog-if 00 [VGA controller])
> 	Subsystem: 1734:121c
> 	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-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 123
> 	Region 0: Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
> 	Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
> 	Region 4: I/O ports at f000 [size=64]
> 	Expansion ROM at <unassigned> [disabled]
> 	Capabilities: [40] Vendor Specific Information: Len=0c <?>
> 	Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00
> 		DevCap:	MaxPayload 128 bytes, PhantFunc 0
> 			ExtTag- RBE+
> 		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
> 			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> 			MaxPayload 128 bytes, MaxReadReq 128 bytes
> 		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
> 		DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF
> Not Supported
> 		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF
> Disabled
> 	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
> 		Address: fee00018  Data: 0000
> 	Capabilities: [d0] Power Management version 2
> 		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> 		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> 	Capabilities: [100 v1] #1b
> 	Capabilities: [200 v1] Address Translation Service (ATS)
> 		ATSCap:	Invalidate Queue Depth: 00
> 		ATSCtl:	Enable-, Smallest Translation Unit: 00
> 	Capabilities: [300 v1] #13
> 	Kernel driver in use: i915
> 	Kernel modules: i915
>
>
> I'm running both Fedora 21 and OpenSUSE 13.2 on those boards at the
> moment, both with a self compiled Kernel 4.1-rc4 (latest git pull was
> today).
>
> Problem: Whenever power management kicks in and blanks the screen the
> systems behave very strange when trying to get the screen back. The
> screen is not fully restored then, but when I move the mouse (Gnome 3 or
> XFCE desktops) up and down the image rolls up and down like a curtain. I
> see no mouse cursor anymore and can't resume to normal operation.
>
> When this happens I see the following line in dmesg:
>
> [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
> underrun
>
> Hardware is still the first prototypes for Skylake, BIOS is beta too.
> But I wanted to give a note about that problem here, maybe someone has
> an idea what is missing.

For brand new platforms you should be running drm-intel-nightly branch
from http://cgit.freedesktop.org/drm-intel.

Double check that you have either i915.preliminary_hw_support=1 module
parameter set or CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT=y config option
set.

BR,
Jani.



>
> Regards
> Rainer
> -- 
> Dipl.-Inf. (FH) Rainer Koenig
> Project Manager Linux Clients
> Dept. PDG WPS R&D SW OSE
>
> Fujitsu Technology Solutions
> Bürgermeister-Ullrich-Str. 100
> 86199 Augsburg
> Germany
>
> Telephone: +49-821-804-3321
> Telefax:   +49-821-804-2131
> Mail:      mailto:Rainer.Koenig@ts.fujitsu.com
>
> Internet         ts.fujtsu.com
> Company Details  ts.fujitsu.com/imprint.html
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: Experiencing FIFO underruns on Intel Skylake platform
  2015-05-19 11:41 ` Jani Nikula
@ 2015-05-19 12:45   ` Rainer Koenig
  2015-05-20  8:17   ` Rainer Koenig
  1 sibling, 0 replies; 5+ messages in thread
From: Rainer Koenig @ 2015-05-19 12:45 UTC (permalink / raw)
  To: Jani Nikula, dri-devel; +Cc: intel-gfx

Am 19.05.2015 um 13:41 schrieb Jani Nikula:

> 
> For brand new platforms you should be running drm-intel-nightly branch
> from http://cgit.freedesktop.org/drm-intel.

Thanks, will try out next.

> Double check that you have either i915.preliminary_hw_support=1 module
> parameter set or CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT=y config option
> set.

ACK. That option  is set (otherwise the audio-driver wouldn't work. :-)

Regards,
Rainer
-- 
Dipl.-Inf. (FH) Rainer Koenig
Project Manager Linux Clients
Dept. PDG WPS R&D SW OSE

Fujitsu Technology Solutions
Bürgermeister-Ullrich-Str. 100
86199 Augsburg
Germany

Telephone: +49-821-804-3321
Telefax:   +49-821-804-2131
Mail:      mailto:Rainer.Koenig@ts.fujitsu.com

Internet         ts.fujtsu.com
Company Details  ts.fujitsu.com/imprint.html
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: Experiencing FIFO underruns on Intel Skylake platform
  2015-05-19 11:41 ` Jani Nikula
  2015-05-19 12:45   ` Rainer Koenig
@ 2015-05-20  8:17   ` Rainer Koenig
  2015-05-20  8:29     ` Jani Nikula
  1 sibling, 1 reply; 5+ messages in thread
From: Rainer Koenig @ 2015-05-20  8:17 UTC (permalink / raw)
  To: Jani Nikula, dri-devel; +Cc: intel-gfx

Am 19.05.2015 um 13:41 schrieb Jani Nikula:
> 
> +intel-gfx

> For brand new platforms you should be running drm-intel-nightly branch
> from http://cgit.freedesktop.org/drm-intel.

Tested now, drm-intel-nightly solves the problem.

Thanks a lot
Rainer
-- 
Dipl.-Inf. (FH) Rainer Koenig
Project Manager Linux Clients
Dept. PDG WPS R&D SW OSE

Fujitsu Technology Solutions
Bürgermeister-Ullrich-Str. 100
86199 Augsburg
Germany

Telephone: +49-821-804-3321
Telefax:   +49-821-804-2131
Mail:      mailto:Rainer.Koenig@ts.fujitsu.com

Internet         ts.fujtsu.com
Company Details  ts.fujitsu.com/imprint.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: Experiencing FIFO underruns on Intel Skylake platform
  2015-05-20  8:17   ` Rainer Koenig
@ 2015-05-20  8:29     ` Jani Nikula
  0 siblings, 0 replies; 5+ messages in thread
From: Jani Nikula @ 2015-05-20  8:29 UTC (permalink / raw)
  To: Rainer Koenig, dri-devel; +Cc: intel-gfx

On Wed, 20 May 2015, Rainer Koenig <Rainer.Koenig@ts.fujitsu.com> wrote:
> Am 19.05.2015 um 13:41 schrieb Jani Nikula:
>> 
>> +intel-gfx
>
>> For brand new platforms you should be running drm-intel-nightly branch
>> from http://cgit.freedesktop.org/drm-intel.
>
> Tested now, drm-intel-nightly solves the problem.
>
> Thanks a lot

Great, thanks for reporting back.

BR,
Jani.



-- 
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-05-20  8:29 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-05-19 11:20 Experiencing FIFO underruns on Intel Skylake platform Rainer Koenig
2015-05-19 11:41 ` Jani Nikula
2015-05-19 12:45   ` Rainer Koenig
2015-05-20  8:17   ` Rainer Koenig
2015-05-20  8:29     ` Jani Nikula

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