[PATCH] radeon: Use only a single work queue thread for crt

[Christian König]

Am 07.09.20 um 01:47 schrieb Dave Airlie:
> On Sun, 6 Sep 2020 at 18:54, Christian König
> <ckoenig.leichtzumerken at gmail.com> wrote:
>> Am 03.08.19 um 02:09 schrieb Andi Kleen:
>>> From: Andi Kleen <ak at linux.intel.com>
>>>
>>> I got tired of seeing a lot of radeon-crt kernel threads in ps on my
>>> workstation, one for each CPU and one for each display, which never use any CPU time.
>>> Surely a single kernel thread is enough to handle the display.
>> NAK, radeon blocks inside the kernel thread and those need to run in
>> parallel or otherwise the hardware can hang.
> Do we need one per cpu? or is one per crtc enough?

One per CRTC is enough, but the patch description sounds like it creates 
only a global one.

Christian.

>
> Dave.