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 72C97C76195 for ; Mon, 27 Mar 2023 12:52:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229610AbjC0Mw1 (ORCPT ); Mon, 27 Mar 2023 08:52:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231287AbjC0MwV (ORCPT ); Mon, 27 Mar 2023 08:52:21 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 354AC173F for ; Mon, 27 Mar 2023 05:52:20 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id D28F2B811D9 for ; Mon, 27 Mar 2023 12:52:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A993C433A1; Mon, 27 Mar 2023 12:52:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679921537; bh=ERkDPrE1t41RAkQ/wfC7GUX0HHhzIsOCq5HwwVyTEOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pb3H6HnS3ls35CnSmyWzLYbqa4xY7gJ+ODpuHIC9lt+69cXWEgPdYbJMjRRC8/yXO rTQMFxKC1dAkOYS/Zt9YoMjlb3cYjH21bvbxn9T041nfigSreDeLCCqIPF5tbFK1FC XnCBEfrWgVZKIAn7pcvXTzx9KBJKb4Thht6yqjXswouC3pbjR6EMIdu/pixvwRXyvH MpSX3QRyl6tOLVeVgledhX5ohLI/nbsf4FnlQ2YYzssgVF/4l9m4ho93K0SS91aS9a e/KshNU60hgoA+WeCd6SjfVoWet5QMHq9S+47R3YnFNS/MHnurZgI4c3QVOVZ679Yo abZfuCTBHfmRw== From: Will Deacon To: joro@8bytes.org, Manivannan Sadhasivam Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , linux-kernel@vger.kernel.org, steev@kali.org, iommu@lists.linux.dev, johan+linaro@kernel.org, andersson@kernel.org, linux-arm-kernel@lists.infradead.org, robin.murphy@arm.com Subject: Re: [PATCH v5] iommu/arm-smmu-qcom: Limit the SMR groups to 128 Date: Mon, 27 Mar 2023 13:52:01 +0100 Message-Id: <167991987524.1305084.466646756285487652.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20230327080029.11584-1-manivannan.sadhasivam@linaro.org> References: <20230327080029.11584-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 27 Mar 2023 13:30:29 +0530, Manivannan Sadhasivam wrote: > Some platforms support more than 128 stream matching groups than what is > defined by the ARM SMMU architecture specification. But due to some unknown > reasons, those additional groups don't exhibit the same behavior as the > architecture supported ones. > > For instance, the additional groups will not detect the quirky behavior of > some firmware versions intercepting writes to S2CR register, thus skipping > the quirk implemented in the driver and causing boot crash. > > [...] Applied to will (for-joerg/arm-smmu/updates), thanks! [1/1] iommu/arm-smmu-qcom: Limit the SMR groups to 128 https://git.kernel.org/will/c/122611347326 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev