linux-kernel - Re: [PATCH v3 0/3] Reduce context clear batch size to avoid gpu hang

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Date:   Sat, 7 Nov 2020 10:57:54 -0700
From:   rwright@....com
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     jani.nikula@...ux.intel.com, joonas.lahtinen@...ux.intel.com,
        rodrigo.vivi@...el.com, airlied@...ux.ie, daniel@...ll.ch,
        sumit.semwal@...aro.org, christian.koenig@....com,
        wambui.karugax@...il.com, chris@...is-wilson.co.uk,
        matthew.auld@...el.com, akeem.g.abodunrin@...el.com,
        prathap.kumar.valsan@...el.com, mika.kuoppala@...ux.intel.com,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH v3 0/3] Reduce context clear batch size to avoid gpu hang

On Mon, Nov 02, 2020 at 12:57:10PM -0700, rwright@....com wrote:
> On Mon, Nov 02, 2020 at 10:48:54AM +0100, Hans de Goede wrote:
> > Hi,
> > 
> ...
> That said, if the i915 maintainers respond in favor of the simpler
> unconditional reduction of the batch size, I will be glad to
> propose a much simpler version of my patch.
> ...

I received a suggestion from Mika Kuoppala to test 
https://patchwork.freedesktop.org/patch/399174/?series=83531&rev=1 as a
solution for the GPU hang I observed, and the test was successful.
I recommend this patch as a better approch than my own, as it 
addresses more general cases without introducing a new quirk.

--
Randy Wright            Usmail: Hewlett Packard Enterprise
Email: rwright@....com          Servers Linux Enablement
Phone: (970) 898-0998           3404 E. Harmony Rd, Mailstop 36
                                Fort Collins, CO 80528-9599