[Nouveau] NV50 compute support questions

Fri Dec 4 01:12:39 PST 2015

Hi,

On 04-12-15 09:54, Samuel Pitoiset wrote:
>
>
> On 12/04/2015 09:45 AM, Hans de Goede wrote:

<snip>

>>> Please give a shot at this branch :
>>> http://cgit.freedesktop.org/~hakzsam/mesa/log/?h=nvf0_compute
>>>
>>> It fixes the initialization of the compute state and allows me to
>>> launch 'test_input_global' (ie. ./compute 8) on my GK208 without
>>> any dmesg fails. That's a good start but more patches are coming. :-)
>>
>> This branch indeed works somewhat better, but things still hang on the
>>
>> test_system_values compute test for me (this is the first test executed
>> I did not try the others). So this seems to need more work.
>
> What about test_input_global? test_system_values doesn't work on my side but it doesn't hang the GPU.

Yes that one works.

> Could you please provide dmesg log?

[    2.786631] nouveau 0000:01:00.0: NVIDIA GK208B (b06070b1)
[    2.914291] nouveau 0000:01:00.0: bios: version 80.28.79.00.0b
[    2.937909] nouveau 0000:01:00.0: priv: HUB0: 086014 ffffffff (1f70820c)
[    2.937953] nouveau 0000:01:00.0: fb: 1024 MiB DDR3
[    3.623202] [TTM] Zone  kernel: Available graphics memory: 2010556 kiB
[    3.623205] [TTM] Initializing pool allocator
[    3.623241] [TTM] Initializing DMA pool allocator
[    3.623440] nouveau 0000:01:00.0: DRM: VRAM: 1024 MiB
[    3.623442] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[    3.623447] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
[    3.623449] nouveau 0000:01:00.0: DRM: DCB version 4.0
[    3.623451] nouveau 0000:01:00.0: DRM: DCB outp 00: 01000f02 00020030
[    3.623454] nouveau 0000:01:00.0: DRM: DCB outp 01: 02011f62 00020010
[    3.623456] nouveau 0000:01:00.0: DRM: DCB outp 02: 02022f10 00000000
[    3.623458] nouveau 0000:01:00.0: DRM: DCB conn 00: 00001031
[    3.623460] nouveau 0000:01:00.0: DRM: DCB conn 01: 00002161
[    3.623462] nouveau 0000:01:00.0: DRM: DCB conn 02: 00000200
[    3.627283] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    3.627285] [drm] Driver supports precise vblank timestamp query.
[    3.671871] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[    3.889940] nouveau 0000:01:00.0: DRM: allocated 1920x1080 fb: 0x60000, bo ffff880119050000
[    3.890952] fbcon: nouveaufb (fb0) is primary device
[    4.132343] Console: switching to colour frame buffer device 240x67
[    4.134930] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[    4.141094] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0

<snip>

[ 1713.421460] nouveau 0000:01:00.0: gr: TRAP ch 6 [003fa32000 compute[21117]]
[ 1713.421471] nouveau 0000:01:00.0: gr: GPC0/TPC1/MP trap: global 00000000 [] warp 3000e [MEM_OUT_OF_BOUNDS]
[ 1713.441248] nouveau 0000:01:00.0: gr: TRAP ch 6 [003fa32000 compute[21117]]
[ 1713.441260] nouveau 0000:01:00.0: gr: GPC0/TPC0/MP trap: global 00000004 [MULTIPLE_WARP_ERRORS] warp 20005 [MISALIGNED_PC]
[ 1713.441265] nouveau 0000:01:00.0: gr: GPC0/TPC1/MP trap: global 00000004 [MULTIPLE_WARP_ERRORS] warp 20005 [MISALIGNED_PC]
[ 1717.773839] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1717.773848] nouveau 0000:01:00.0: fifo: sw engine fault on channel 2, recovering...
[ 1719.776529] nouveau 0000:01:00.0: fifo: runlist 0 update timeout
[ 1722.068923] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1726.363660] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1730.658395] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1734.951720] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1739.241861] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1743.532005] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1747.826728] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1752.121462] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1756.416200] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1760.710930] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1765.005663] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1769.300396] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1773.595135] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1777.889863] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1782.184598] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1786.479328] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1789.730020] nouveau 0000:01:00.0: compute[21117]: failed to idle channel 6 [compute[21117]]
[ 1790.774060] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1791.729963] nouveau 0000:01:00.0: timeout at drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c:47/gk104_fifo_gpfifo_kick()!
[ 1791.729966] nouveau 0000:01:00.0: fifo: channel 6 [compute[21117]] kick timeout
[ 1791.729973] nouveau: compute[21117]:00000000:0000a06f: detach gr failed, -16
[ 1791.731401] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0d []
[ 1793.731275] nouveau 0000:01:00.0: timeout at drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c:47/gk104_fifo_gpfifo_kick()!
[ 1793.731279] nouveau 0000:01:00.0: fifo: channel 6 [compute[21117]] kick timeout
[ 1793.731281] nouveau: compute[21117]:00000000:0000a06f: detach sw failed, -16
[ 1796.026118] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1800.320809] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1804.615446] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1808.731016] nouveau 0000:01:00.0: compute[21117]: failed to idle channel 6 [compute[21117]]
[ 1808.738716] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0d []
[ 1810.738093] nouveau 0000:01:00.0: fifo: runlist 0 update timeout
[ 1810.738106] nouveau 0000:01:00.0: fifo: BIND_ERROR 03 [UNBIND_WHILE_RUNNING]
[ 1815.032747] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1819.327395] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1823.622036] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]

<last line keeps repeating at aprox 4 sec interval>

>> I've ordered a GTX740 (GK107) card, which should arrive soon, and
>> I'll be using that so I can (hopefully) focus on the llvm tgsi bits
>> again.
>
> Yeah, GK107 will do the job. :-)

Good a said it should arrive soon.

>>> Btw, according to the trace you sent me, you have a GK208b (NV106).
>>
>> Right, sorry I thought the differences between GK208 and GK208b would
>> not matter.
>
> I don't know exactly the differences between these two chipsets but since test_system_values hangs your GPU and not mine, I think they are some.

Ok.

Regards,

Hans