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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D4A0C433EF for ; Tue, 19 Oct 2021 11:15:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7B2261057 for ; Tue, 19 Oct 2021 11:15:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235369AbhJSLSG (ORCPT ); Tue, 19 Oct 2021 07:18:06 -0400 Received: from foss.arm.com ([217.140.110.172]:47830 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230097AbhJSLSE (ORCPT ); Tue, 19 Oct 2021 07:18:04 -0400 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 0BAD7D6E; Tue, 19 Oct 2021 04:15:52 -0700 (PDT) Received: from [10.57.25.70] (unknown [10.57.25.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5B1963F70D; Tue, 19 Oct 2021 04:15:50 -0700 (PDT) Subject: Re: [PATCH v5 02/15] arm64: errata: Add detection for TRBE overwrite in FILL mode To: Will Deacon Cc: mathieu.poirier@linaro.org, catalin.marinas@arm.com, anshuman.khandual@arm.com, mike.leach@linaro.org, leo.yan@linaro.org, maz@kernel.org, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mark Rutland References: <20211014223125.2605031-1-suzuki.poulose@arm.com> <20211014223125.2605031-3-suzuki.poulose@arm.com> <20211019110443.GE13251@willie-the-truck> From: Suzuki K Poulose Message-ID: Date: Tue, 19 Oct 2021 12:15:49 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20211019110443.GE13251@willie-the-truck> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/10/2021 12:04, Will Deacon wrote: > On Thu, Oct 14, 2021 at 11:31:12PM +0100, Suzuki K Poulose wrote: >> Arm Neoverse-N2 and the Cortex-A710 cores are affected >> by a CPU erratum where the TRBE will overwrite the trace buffer >> in FILL mode. The TRBE doesn't stop (as expected in FILL mode) >> when it reaches the limit and wraps to the base to continue >> writing upto 3 cache lines. This will overwrite any trace that >> was written previously. >> >> Add the Neoverse-N2 erratumi(#2139208) and Cortex-A710 erratum >> (#2119858) to the detection logic. > > Weird typo and double space in this sentence. I have fixed this now. Thanks Suzuki