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Date: Mon, 10 Aug 2026 14:18:42 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>, Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
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	Andi Kleen <ak@linux.intel.com>,
	Eranian Stephane <eranian@google.com>, linux-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, Dapeng Mi <dapeng1.mi@intel.com>,
	Zide Chen <zide.chen@intel.com>,
	Falcon Thomas <thomas.falcon@intel.com>,
	Xudong Hao <xudong.hao@intel.com>
Subject: Re: [Patch v3 6/8] perf/x86/intel: Fix intel_cap handling on hybrid
 PMUs
Message-ID: <20260810121842.GW776954@noisy.programming.kicks-ass.net>
References: <20260717080342.1879573-1-dapeng1.mi@linux.intel.com>
 <20260717080342.1879573-7-dapeng1.mi@linux.intel.com>
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In-Reply-To: <20260717080342.1879573-7-dapeng1.mi@linux.intel.com>

On Fri, Jul 17, 2026 at 04:03:40PM +0800, Dapeng Mi wrote:
> +	/*
> +	 * The Perf Metric (Bit 15) is always cleared on P-core of
> +	 * RPL and MTL. Details can be found in RPL018 erratum.
> +	 * https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processor-specification-update/errata-details/
> +	 */

Typically intel.com URLs are unstable and not worth the effort of
including anywhere. I'll strip this out, its probably easy enough to
google the erratum number.