From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B4BC433EF for ; Fri, 18 Mar 2022 10:53:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235440AbiCRKyR (ORCPT ); Fri, 18 Mar 2022 06:54:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231610AbiCRKyP (ORCPT ); Fri, 18 Mar 2022 06:54:15 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 048E027CE28; Fri, 18 Mar 2022 03:52:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=oLvSw2t5Gik7RrQqyucAdo114MkDAZy96gLyodSGUTg=; b=nqsWO4HqKoLcyKzEO6AGJpgjpQ 2dSbDntUmrkIG5J7ZAxrFanDIdxMkpV0VBqkh84TO9gMPmCudQsIGdtH/9Rdvx4ekBPZKfGAkiMeN TS/7ga1DuldRRpyFLITPIRf1MvxrlpQkjKD3RrngVta7T4H++TIAqgppn/XK5iCs+8r/yzHzy0OVV FtMsikvtiwKoD6XtsOuoA7n85tVqloLm+xMgGLOJHC47bFwsffjyM5f3Mt57BNiDepjtBr9HXVW+b ha7jire4r0bcBGlI6Pg2LudHd9QdC4gJ84dD7Edzt+D+/I6uhxi8IPAhV/niaGKug1FEQmZWlGeym AcnRUZIg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nVADq-002BhC-5K; Fri, 18 Mar 2022 10:52:42 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 7C0303001C7; Fri, 18 Mar 2022 11:52:41 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 5DE902D35E974; Fri, 18 Mar 2022 11:52:41 +0100 (CET) Date: Fri, 18 Mar 2022 11:52:41 +0100 From: Peter Zijlstra To: Sandipan Das Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, x86@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, namhyung@kernel.org, jolsa@kernel.org, tglx@linutronix.de, mingo@redhat.com, pbonzini@redhat.com, jmattson@google.com, like.xu.linux@gmail.com, eranian@google.com, ananth.narayan@amd.com, ravi.bangoria@amd.com, santosh.shukla@amd.com Subject: Re: [PATCH 5/7] perf/x86/amd/core: Add PerfMonV2 counter control Message-ID: References: <7958e729c6be0f682379bec81f115b8cd7cca1ad.1647498015.git.sandipan.das@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 18, 2022 at 01:32:04PM +0530, Sandipan Das wrote: > On 3/17/2022 5:16 PM, Peter Zijlstra wrote: > > First and foremost, *please* tell me your shiny new hardware fixed the > > terrible behaviour that requires the wait_on_overflow hacks in > > amd_pmu_disable_all(). > > Unfortunately, that workaround is still required. So much sadness :-(