From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9CDA150094C; Tue, 13 Jan 2026 20:32:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768336360; cv=none; b=AqF7yZIlU2+cmoWSkkbmsI0EIGGAu+4lW/TjSTiMj7IT4yKZ8TgBRp0ylpgHc5kYz1MxawGg5QpKdrFzw5qt9d8SfnbHsTIt7J/qfU9e5RBGKOdseTxMHMyEpYzVeWZjKllGI9zGajau2UeWqzjvLKrq3mONd/QtIj4Q7Fhui6U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768336360; c=relaxed/simple; bh=H6PhnM2kCppM8aCBeFuEKsIPQgQaguqi5t6ulW9YN7A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HLroWwGxDmbEzDa1p+cYtDqA0vsK5LohYltYn0ehsnNHTo072xu4oeJEPasM/ji27DoJalx/TPW1VYC+2h7sQj5C/OHzYuiySHsOcFb3BP8nQ7KQutO05VqDKgLIJoATeIF6oLcx3461COHShEK1fBDX49S9sBRHYPeREZODqBA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HCsXeInD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HCsXeInD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97D85C116C6; Tue, 13 Jan 2026 20:32:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768336360; bh=H6PhnM2kCppM8aCBeFuEKsIPQgQaguqi5t6ulW9YN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HCsXeInDtJ3LS6lqB9JbP2I+iXKQxPaFsV2mB+xnT2JM4kPJQQa1uw6n0GjSGKfBJ 8p459RTS77vabkXDF5tDCpmP7BV5usl+yl0q8HwNFkR+BsJqTj1ADn/8ZYGeZlyXj4 yzLyyRuDXyWZx8hcMaeS5mEEw/IvvkEfyYxXpX3dOvV3kJdFVFmCZt5pF+DyTxeDR9 /9h+EDm/6LOQm9ocnfsMWFaJe8cnOlhDY9YDOYZIrL+/Y10TtmkSsinlG8HSfId2ae 9CRQ/S3o6KaAwaxuxZO+Gj7zMUDDi555mdcIBixcMavTsUM8J1xJ1wqoyY9EZILgdm s22cZ+XaKvHkA== Date: Tue, 13 Jan 2026 17:32:37 -0300 From: Arnaldo Carvalho de Melo To: Ian Rogers Cc: James Clark , John Garry , Will Deacon , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , Akio Kakuno , Yoshihiro Furudera , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org Subject: Re: [PATCH] perf vendor events arm64: Remove uncountable events Message-ID: References: <20251231-james-perf-uncountable-events-v1-1-f2d9932999fd@linaro.org> <951f10c5-e1ac-45d4-b7ca-56aa32e57cd6@linaro.org> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Sat, Jan 03, 2026 at 05:27:49PM -0800, Ian Rogers wrote: > On Sat, Jan 3, 2026 at 8:38 AM James Clark wrote: > > On 02/01/2026 3:29 pm, Ian Rogers wrote: > > > On Wed, Dec 31, 2025 at 4:13 AM James Clark wrote: > > >> These events are never countable by the PMU and are only intended to > > >> be used as external inputs to trace. Therefore showing them in 'perf > > >> list' is misleading so remove them. > > > What does "trace" mean in this context? > > CPU trace, Either ETE (Embedded Trace Extension) or ETM (Embedded Trace > > Macrocell). You can select PMU events as inputs to the trace block to > > make it do things like start and stop tracing. > Ah ok, trace immediately makes me think of `perf trace` currently. > Presumably there's no perf integration for ETE and ETM that somehow > use these event encodings? Looks not and the changes make sense to me. > > Reviewed-by: Ian Rogers Thanks, applied to perf-tools-next, - Arnaldo