From: Paul Dufresne <dufresnep@zoho.com>
To: "nouveau" <nouveau@lists.freedesktop.org>
Subject: [Nouveau] Meaning of the engines in paramaters of nouveau module
Date: Sun, 03 Dec 2023 14:04:12 -0500 [thread overview]
Message-ID: <18c311115a3.b63b522e4445.755018207880528406@zoho.com> (raw)
In-Reply-To:
In https://nouveau.freedesktop.org/KernelModuleParameters.html, there is:
Here is a list of engines:
DEVICE
DMAOBJ
PBSP
PCE0
PCE1
PCE2
PCRYPT
PDISP
PFIFO
PGRAPH
PMPEG
PPM
PPPP
PVP
SW
Also, in debug:
CLIENT
I have tried to find a description of those.
https://envytools.readthedocs.io/en/latest/
help a bit, but I don't find a precise correlation.
https://nouveau.freedesktop.org/NouveauTerms.html
does not seems to have most of these terms.
I am particularly curious about PCE[0-3].
But also about CLIENT, that seems different and mysterious.
I wonder if it is possible to write:
nouveau.debug=info,PDISP=debug
to have the info debug level as the default, but for PDISP have the debug level
Also, my interest is linked to the state of GPU graph given after a context switch timeout that looks like:
[ 1696.780305] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1696.780361] nouveau 0000:01:00.0: fifo:000000:00[ gr]: 8006e005: busy 1 faulted 0 chsw 1 save 1 load 1 chid 5*-> chid 6
[ 1696.780422] nouveau 0000:01:00.0: fifo:000000:07[ ce2]: 00050005: busy 0 faulted 0 chsw 0 save 0 load 0 chid 5 -> chid 5
[ 1696.780476] nouveau 0000:01:00.0: fifo:000004:04[ ce0]: 00000000: busy 0 faulted 0 chsw 0 save 0 load 0 chid 0 -> chid 0
[ 1696.780529] nouveau 0000:01:00.0: fifo:000001:01[ mspdec]: 00000000: busy 0 faulted 0 chsw 0 save 0 load 0 chid 0 -> chid 0
[ 1696.780581] nouveau 0000:01:00.0: fifo:000002:02[ msppp]: 00000000: busy 0 faulted 0 chsw 0 save 0 load 0 chid 0 -> chid 0
[ 1696.780633] nouveau 0000:01:00.0: fifo:000003:03[ msvld]: 00000000: busy 0 faulted 0 chsw 0 save 0 load 0 chid 0 -> chid 0
[ 1696.780689] nouveau 0000:01:00.0: fifo:000000:00[ gr]: 8006e005: busy 1 faulted 0 chsw 1 save 1 load 1 chid 5*-> chid 6
[ 1696.780744] nouveau 0000:01:00.0: fifo:000000:00[ gr]: 8006e005: busy 1 faulted 0 chsw 1 save 1 load 1 chid 5*-> chid 6
[ 1696.780795] nouveau 0000:01:00.0: fifo:000000:00[ gr]: triggering mmu fault on 0x00
[ 1696.780835] nouveau 0000:01:00.0: fifo:000000:07[ ce2]: 00050005: busy 0 faulted 0 chsw 0 save 0 load 0 chid 5 -> chid 5
[ 1696.780942] nouveau 0000:01:00.0: fifo:000000:00[ gr]: 00000100: mmu fault triggered
[ 1696.780987] nouveau 0000:01:00.0: fifo:000000:00[ gr]: c006e005: busy 1 faulted 1 chsw 1 save 1 load 1 chid 5*-> chid 6
[ 1696.781040] nouveau 0000:01:00.0: fifo:000000:0005:[Renderer[13701]] rc scheduled
where I suspect ce2, is linked to PCE2.
Is there a documentation that describes those "engines"?
next reply other threads:[~2023-12-03 19:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-03 19:04 Paul Dufresne [this message]
2023-12-05 3:27 ` [Nouveau] Meaning of the engines in paramaters of nouveau module Dave Airlie
2023-12-05 14:27 ` [Nouveau] GPU MMU faults (was Meaning of the engines in paramaters of nouveau module) Paul Dufresne
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