From: Eric Anholt <eric@anholt.net>
To: David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Subject: Re: [PATCH v3] drm/vc4: Expose performance counters to userspace
Date: Sun, 11 Feb 2018 10:07:28 +0000 [thread overview]
Message-ID: <87a7wfsuu7.fsf@anholt.net> (raw)
In-Reply-To: <20180112090926.12538-1-boris.brezillon@free-electrons.com>
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Boris Brezillon <boris.brezillon@free-electrons.com> writes:
> The V3D engine has various hardware counters which might be interesting
> to userspace performance analysis tools.
>
> Expose new ioctls to create/destroy a performance monitor object and
> query the counter values of this perfmance monitor.
>
> Note that a perfomance monitor is given an ID that is only valid on the
> file descriptor it has been allocated from. A performance monitor can be
> attached to a CL submission and the driver will enable HW counters for
> this request and update the performance monitor values at the end of the
> job.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> Reviewed-by: Eric Anholt <eric@anholt.net>
Pushed. Thanks!
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prev parent reply other threads:[~2018-02-11 10:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 9:09 [PATCH v3] drm/vc4: Expose performance counters to userspace Boris Brezillon
2018-02-11 10:07 ` Eric Anholt [this message]
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