* [Bug 90363] New: [nv50] HW state is not reset correctly when using a new GL context
@ 2015-05-07 16:46 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
0 siblings, 1 reply; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-05-07 16:46 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 1543 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=90363
Bug ID: 90363
Summary: [nv50] HW state is not reset correctly when using a
new GL context
Product: Mesa
Version: git
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/nouveau
Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Reporter: matteo.mystral-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
QA Contact: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Created attachment 115622
--> https://bugs.freedesktop.org/attachment.cgi?id=115622&action=edit
Hack
Hardware state is not reset correctly when a process makes use of a new GL
context, after it has used and then destroyed the previous one.
This manifests in a (still uncommitted,
https://www.winehq.org/pipermail/wine-patches/2015-April/138974.html) Wine test
which fails on nv50. Actually commenting out stream_test(), which makes use of
instanced draws with ARB_instanced_arrays, workarounds the issue.
A single process executes both tests, destroying and then recreating a GL
context in between. AFAIU specifically the per-instance enable flags are never
reset on the HW and that breaks the latter test.
I'm attaching a patch which "fixes" the issue for me but it's not the correct
approach.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 90363] [nv50] HW state is not reset correctly when using a new GL context
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
@ 2015-05-07 16:51 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-07 18:25 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-05-07 16:51 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 600 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=90363
--- Comment #1 from Matteo Bruni <matteo.mystral-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 115623
--> https://bugs.freedesktop.org/attachment.cgi?id=115623&action=edit
Ilia's attempted fix
I'm attaching Ilia's patch for this issue, from IRC. It doesn't work for me
(yet) but this should be more like the correct fix.
BTW, I can try to make a standalone, GL testcase for this bug. It might take a
while though.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 90363] [nv50] HW state is not reset correctly when using a new GL context
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2015-05-07 16:51 ` [Bug 90363] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2015-05-07 18:25 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-07 19:32 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-09 17:56 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-05-07 18:25 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 468 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=90363
--- Comment #2 from Matteo Bruni <matteo.mystral-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 115624
--> https://bugs.freedesktop.org/attachment.cgi?id=115624&action=edit
Improved fix
The attached works for me. It's the patch from Ilia with an additional state
copy in nv50_create.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 90363] [nv50] HW state is not reset correctly when using a new GL context
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2015-05-07 16:51 ` [Bug 90363] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-07 18:25 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2015-05-07 19:32 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-09 17:56 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-05-07 19:32 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 599 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=90363
--- Comment #3 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Ah yeah, that makes sense. Forgot that contexts liked to auto-attach
themselves. cur_state seems like a dumb name, I'm going to change it to
saved_state or something. Also that state needs to be initialized, so I'm going
to move the state init bits from that state init function to the screen init.
Will send a proper patch for testing tonight-ish.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 90363] [nv50] HW state is not reset correctly when using a new GL context
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
` (2 preceding siblings ...)
2015-05-07 19:32 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2015-05-09 17:56 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-05-09 17:56 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 828 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=90363
Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Just pushed out the fixes to make it work on nv50 and nvc0. nvc0 had the
additional bug that 3d-engine-based blits use a vbo, and were also forgetting
to overwrite these attributes, leading to a fail even when having the proper
"state".
Thanks for reporting!
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2015-05-07 16:46 [Bug 90363] New: [nv50] HW state is not reset correctly when using a new GL context bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-90363-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2015-05-07 16:51 ` [Bug 90363] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-07 18:25 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-07 19:32 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2015-05-09 17:56 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
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