[fedora-arm] Nouveau acceleration on armv7/aarch64

[Nicolas Chauvet]

Hi there,


FYI I've backported the tegra/nouveau support that has landed in mesa
master recently on top of mesa-18.0
Here is a koji scratch build:
https://koji.fedoraproject.org/koji/taskinfo?taskID=26171305

I'm testing it only on a jetson-tk1 (armv7hl) for now, using a 4.16.0 kernel.
But in this case, I have the following message (that freeze the system).
[ 1140.014947] nouveau 57000000.gpu: fifo: SCHED_ERROR 20 []

Because of that, I need to boot with rd.driver.blacklist=nouveau
modprobe.blacklist=nouveau from cmdline.
I'm trying to have it reported upstream.

Even with nouveau disabled, and using the mesa with tegra backport,
I'm able to run a wayland session on tegra. (very slowly). this was
not the case before the mesa tegra backport as it fallback on Xorg.

I don't think there is any improvement on SOC older than tegra k1. I
haven't tried yet.
I hope you can enjoy.

PS: I think this is a little too much for backport the whole tegra
support to the normal fedora package. But if it's something to
consider, I can submit a PR on mesa...


--
-

Nicolas (kwizart)
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[Peter Robinson]

Post by Nicolas Chauvet
Hi there,
FYI I've backported the tegra/nouveau support that has landed in mesa
master recently on top of mesa-18.0
https://koji.fedoraproject.org/koji/taskinfo?taskID=26171305
I'm testing it only on a jetson-tk1 (armv7hl) for now, using a 4.16.0 kernel.
But in this case, I have the following message (that freeze the system).
[ 1140.014947] nouveau 57000000.gpu: fifo: SCHED_ERROR 20 []
Because of that, I need to boot with rd.driver.blacklist=nouveau
modprobe.blacklist=nouveau from cmdline.
I'm trying to have it reported upstream.

I reported this upstream around rc4 but I've not heard anything, I've
been away and just booted the TK1 up again yesterday and I was seeing
the same and have updated the details.

Post by Nicolas Chauvet
Even with nouveau disabled, and using the mesa with tegra backport,
I'm able to run a wayland session on tegra. (very slowly). this was
not the case before the mesa tegra backport as it fallback on Xorg.

I've been running wayland on the TK1 for a number of cycles
accelerated, this has worked for some time, the patches you reference
improve a number of things and take it up a notch.

Post by Nicolas Chauvet
I don't think there is any improvement on SOC older than tegra k1. I
haven't tried yet.

Nope, because SoCs older than the TK1 don't use nouveau.

Post by Nicolas Chauvet
I hope you can enjoy.
PS: I think this is a little too much for backport the whole tegra
support to the normal fedora package. But if it's something to
consider, I can submit a PR on mesa...

It's too large IMO, but then mesa tends to back port new versions
regularly so we'll see it soon enouygh.

Peter
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