linux-kernel - Re: [RFC PATCH 00/11] drm/i915: Expose OA metrics via perf PMU

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Message-ID: <20150508162143.GQ27504@twins.programming.kicks-ass.net>
Date:	Fri, 8 May 2015 18:21:43 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Robert Bragg <robert@...bynine.org>
Cc:	intel-gfx@...ts.freedesktop.org,
	Daniel Vetter <daniel.vetter@...el.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	David Airlie <airlied@...ux.ie>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-api@...r.kernel.org
Subject: Re: [RFC PATCH 00/11] drm/i915: Expose OA metrics via perf PMU


So I've not yet went through the entire series; but I'm wondering if its
at all possible to re-use some of this work:

lkml.kernel.org/r/1428453299-19121-1-git-send-email-sukadev@...ux.vnet.ibm.com

That's for a Power8 HV call that can basically return an array of
values; which on a superficial level sounds a bit like what this GPU
hardware does.

Let me read more of this..
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