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 2031E380 for ; Sun, 23 Oct 2022 14:36:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4061DC433D6; Sun, 23 Oct 2022 14:36:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666535812; bh=VHsCq3KJhfBXSa7NUYUeMeEK9sRiriWcBkcMV40tuF0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=a896ovhiG/FxmSu0fUzsV6CY0BrsT8dlwDHluHliQHIUJ8ujOXesmdEZUx0zI/DFS YyDIn+00UNjOptdtwAASs0xc1yTfdcPuD6Pm/u0u7nW+e8reQsal0vgbKU1n6TCaoV CL9phJ5a86B97feq0A3GfN1U6OD/vLeednRaveno= Date: Sun, 23 Oct 2022 16:36:49 +0200 From: Greg KH To: Chen Lin Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, treding@nvidia.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Chen Lin Subject: Re: [PATCH] iommu/arm-smmu: Warn once when the perfetcher errata patch fails to allpy Message-ID: References: <20221022024559.4913-1-chen45464546@163.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221022024559.4913-1-chen45464546@163.com> On Sat, Oct 22, 2022 at 10:45:59AM +0800, Chen Lin wrote: > From: Chen Lin > > Default reset value of secure banked register SMMU_sACR.cache_lock is 1. > If it is not been set to 0 by secure software(eg: atf), the non-secure > linux cannot clear ARM_MMU500_ACTLR_CPRE bit. In this situation, > the prefetcher errata is not applied successfully, warn once. > > Signed-off-by: Chen Lin > --- > drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 +++ > 1 file changed, 3 insertions(+) As has been stated many times before, please fix your email systems and stop using personal accounts, if you wish for us to think that you really are developing from a zte.com.cn account. thanks, greg k-h 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 C296AC3A59D for ; Sun, 23 Oct 2022 14:38:08 +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=VEH2NWfbE3AptGhqllq+dO7lOCGkLdDxD2Uf2DV4Dd0=; b=gk8z/IbFl6uRIQ 0Kwb1FWuBuFoQ4yhhuzBWHFf//uLECdBjSw89t0AIJeAuXG9F0CQzINWLkSCO34l1AIXPunCuG66L t0R1uZIC6H1zszjBiPl4RLdRaRBCvpG8x+uQ4VbRcISqyJArZi5E90Qus+RUb+Wrg9+01Zj0En3Hj TJ6wS7CuEHz9edz8/TquS1ZU71e+KEO4ITOlblaYQz3biGk7gc23FZTI7dgjwfYioltyxpeHuNmlF 3FRzjoaDJZoKSULJugV+v+Q7Qx9/D7qHQu0NKr7ijSbpzOr5qVVQg+dsnij1S1Xf7mzbnkRsd5WDz hehYcveb1t8O+WOq+CKg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1omc6D-00FSQC-71; Sun, 23 Oct 2022 14:37:13 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1omc6A-00FSNX-H6 for linux-arm-kernel@lists.infradead.org; Sun, 23 Oct 2022 14:37:11 +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 5288C60EA9; Sun, 23 Oct 2022 14:36:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4061DC433D6; Sun, 23 Oct 2022 14:36:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666535812; bh=VHsCq3KJhfBXSa7NUYUeMeEK9sRiriWcBkcMV40tuF0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=a896ovhiG/FxmSu0fUzsV6CY0BrsT8dlwDHluHliQHIUJ8ujOXesmdEZUx0zI/DFS YyDIn+00UNjOptdtwAASs0xc1yTfdcPuD6Pm/u0u7nW+e8reQsal0vgbKU1n6TCaoV CL9phJ5a86B97feq0A3GfN1U6OD/vLeednRaveno= Date: Sun, 23 Oct 2022 16:36:49 +0200 From: Greg KH To: Chen Lin Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, treding@nvidia.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Chen Lin Subject: Re: [PATCH] iommu/arm-smmu: Warn once when the perfetcher errata patch fails to allpy Message-ID: References: <20221022024559.4913-1-chen45464546@163.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221022024559.4913-1-chen45464546@163.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221023_073710_618845_83E76A56 X-CRM114-Status: GOOD ( 11.99 ) 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 Sat, Oct 22, 2022 at 10:45:59AM +0800, Chen Lin wrote: > From: Chen Lin > > Default reset value of secure banked register SMMU_sACR.cache_lock is 1. > If it is not been set to 0 by secure software(eg: atf), the non-secure > linux cannot clear ARM_MMU500_ACTLR_CPRE bit. In this situation, > the prefetcher errata is not applied successfully, warn once. > > Signed-off-by: Chen Lin > --- > drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 +++ > 1 file changed, 3 insertions(+) As has been stated many times before, please fix your email systems and stop using personal accounts, if you wish for us to think that you really are developing from a zte.com.cn account. thanks, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel