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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8523FC433EF for ; Fri, 7 Jan 2022 10:59:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DvRqukSoX+eNdD4o1MgAoMiwm6TSFPlcz5JnEazyI0w=; b=eGVkTFOc6idpwC o5pwEEoKjzKTzVHrrgk2Xm2Q2InUgqeh/3SrenEY0gfDS7oDXFhUyxT6rl9N/JguJblev52r+2PPf LnmP9bP83dzB3KJDOKz6RtVvMvYlQRY974/XTzl8nMLXicmwUWsUEk8+slFzSF7nSk4IYHeCYwkPQ krsya1cDdx0K1Yo9KDJWW4LwuMtDd/WI6u9y31WwDsaS03/kORCixLVRYy2u307feMzXFTSvMezqW JbQ/cTSadR0UpbUlQPpi4MARUB3JyLZDDD61zwskG4jAXczkVIFZHoR+kHN9izagAx+kcrIXf0Z8q 80RM9cU02z1HtiSDxHaA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n5mxA-003WVe-OW; Fri, 07 Jan 2022 10:58:36 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n5mx7-003WTx-1S for linux-arm-kernel@lists.infradead.org; Fri, 07 Jan 2022 10:58:34 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 55D3E60AD6; Fri, 7 Jan 2022 10:58:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F2A1C36AE9; Fri, 7 Jan 2022 10:58:30 +0000 (UTC) Date: Fri, 7 Jan 2022 10:58:27 +0000 From: Catalin Marinas To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, Will Deacon , Mathieu Poirier , Suzuki Poulose , coresight@lists.linaro.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V2 2/7] arm64: errata: Add detection for TRBE ignored system register writes Message-ID: References: <1641517808-5735-1-git-send-email-anshuman.khandual@arm.com> <1641517808-5735-3-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1641517808-5735-3-git-send-email-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220107_025833_145694_CF285D2C X-CRM114-Status: GOOD ( 10.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jan 07, 2022 at 06:40:03AM +0530, Anshuman Khandual wrote: > TRBE implementations affected by Arm erratum #2064142 might fail to write > into certain system registers after the TRBE has been disabled. Under some > conditions after TRBE has been disabled, writes into certain TRBE registers > TRBLIMITR_EL1, TRBPTR_EL1, TRBBASER_EL1, TRBSR_EL1 and TRBTRG_EL1 will be > ignored and not be effected. This adds a new errata ARM64_ERRATUM_2064142 > in arm64 errata framework. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Mathieu Poirier > Cc: Suzuki Poulose > Cc: coresight@lists.linaro.org > Cc: linux-doc@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel