linux-kernel - Re: [PATCH] perf/x86/intel: Add hardware cache event support for Intel Gemini Lake

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Date:   Thu, 13 Apr 2017 06:45:38 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Yunying Sun <yunying.sun@...el.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        linux-kernel@...r.kernel.org, vince@...ter.net, eranian@...gle.com,
        Arnaldo Carvalho de Melo <acme@...radead.org>,
        kan.liang@...el.com
Subject: Re: [PATCH] perf/x86/intel: Add hardware cache event support for
 Intel Gemini Lake

On Thu, Apr 13, 2017 at 04:19:13PM +0800, Yunying Sun wrote:
> Gemini Lake is a Goldmont core based Apollo Lake successor with better
> CPU performance. Currently there is no hardware cache events available
> if checking with "perf list cache" on Gemini Lake. Perf hardware cache
> event test always fail because of this.
> 
> This patch adds INTEL_FAM6_ATOM_GEMINI_LAKE case to use same Goldmont
> hardware cache events table for Gemini Lake. With this patch, below
> hardware cache events are available on Gemini Lake, and perf hardware
> cache event test can pass.

Gemini Lake needs more changes. Kan has been working on a more complete
patch kit.

-Andi