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Message-ID: <50dce146-f7b0-89ff-34f6-d0ddbda4c158@intel.com>
Date:   Wed, 5 Apr 2023 16:16:14 +0200
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Subject: Re: [Intel-gfx] [PATCH v2] drm/i915/gt: Hold a wakeref for the active
 VM
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To:     Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>
Cc:     intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org,
        Chris Wilson <chris@chris-wilson.co.uk>,
        Chris Wilson <chris.p.wilson@linux.intel.com>
References: <20230330-hold_wakeref_for_active_vm-v2-1-724d201499c2@intel.com>
From:   Andrzej Hajda <andrzej.hajda@intel.com>
Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298
 Gdansk - KRS 101882 - NIP 957-07-52-316
In-Reply-To: <20230330-hold_wakeref_for_active_vm-v2-1-724d201499c2@intel.com>
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On 31.03.2023 16:16, Andrzej Hajda wrote:
> From: Chris Wilson <chris@chris-wilson.co.uk>
> 
> There may be a disconnect between the GT used by the engine and the GT
> used for the VM, requiring us to hold a wakeref on both while the GPU is
> active with this request.
> 
> v2: added explanation to __queue_and_release_pm
> 
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> [ahajda: removed not-yet-upstremed wakeref tracking bits]
> Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>


Queued.

Regards
Andrzej