From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BC4181DB356; Tue, 20 May 2025 16:22:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747758174; cv=none; b=YLhTj/N8BRVzFcxte+Qr4C3SifbWmTdWimwg+r55qjfD1alkf8yENQl/XFBHlxhLZyW3XSRZhanacJlVxt4BaXdkI9zx3ECkP9s8ieop6NxYT8Bpl9RGSJ6eVxqX9XJtqL2cJUJZQ4rxcIEsuD6RFpVpic2JY0tRHbPgj3OJHgI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747758174; c=relaxed/simple; bh=TSLEjjv6+H/htSfF8goosdAaQZvhHFQIi6xN9xhIFDY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Pd7jYzNZAf5DPyAkHWM5XCcKbknlhTqjb/fsxx2xBz3kCMR+01UDPq6UY8e5OicilQpsgNwbWCxBFUMCTgaiiNf9MV9N0XZLQVjmHNc8LYHfOibnlyuAsSAeJ83oe2PrNwtGBq8RYyvtyXmlof/EQv17I/xMsOZk0hT8uOQokQA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 89D2E1516; Tue, 20 May 2025 09:22:38 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9FD9C3F5A1; Tue, 20 May 2025 09:22:51 -0700 (PDT) Date: Tue, 20 May 2025 17:22:43 +0100 From: Leo Yan To: James Clark Cc: Catalin Marinas , Will Deacon , Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Jonathan Corbet , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev Subject: Re: [PATCH 07/10] perf: arm_spe: Add support for filtering on data source Message-ID: <20250520162243.GU412060@e132581.arm.com> References: <20250506-james-perf-feat_spe_eft-v1-0-dd480e8e4851@linaro.org> <20250506-james-perf-feat_spe_eft-v1-7-dd480e8e4851@linaro.org> <20250520134632.GR412060@e132581.arm.com> <443141db-6950-4a15-83be-ad9e9c0e03a0@linaro.org> <20250520161003.GT412060@e132581.arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250520161003.GT412060@e132581.arm.com> On Tue, May 20, 2025 at 05:10:03PM +0100, Leo Yan wrote: [...] > If 'PMSFCR_EL1.FDS == 0 and PMSDSFR_EL1 == 0x0' is the init state, as > you said, when user passed 0xFFFF,FFFF,FFFF,FFFF for data filter, we > cannot distinguish it from the init state, as a result, we will fail > to handle this case. Correct a typo. The case above, it means "when a user passes 0x0 for data source filter ....". Sorry for spamming. Leo