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 816CBC54EBC for ; Tue, 10 Jan 2023 14:04:01 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=TbOnDx3kgsypJl7MB57lDiNE3PaXvZDn4rlQg1z/ymY=; b=1oO651dyv0UHfR EOo6bzSrxjURTPJCkTcvEeFueg5AtdlWW5fnSW/oeTNwByrorV9LikilSt21Awx21IpcxGWgfK7fi WPoH8ekA04xxFhMMC3JVCIMRkK1l3bx5PjkrBKB1bJvezKgUOJsVM85x4NwfDuehMVo5nslHdrMEQ 9ZJt1Jlp77pDy/v8hooTB3KecKMw/+5faR0D8Y38QWeeeJMx/RL+bHoTwQViT/jcefNlMPMQqtYEk 8+0YtgDQwzz0kN9hC9Na5kC0Cw4QHQyzy40jRFhGoksH3bRvcERdHEE6zXGjp9j0rzGtJV5x0AKe8 +FzETFw3lOFHtNEllSYA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFFDS-007AoM-7u; Tue, 10 Jan 2023 14:03:02 +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 1pFFDP-007Anr-Mm for linux-arm-kernel@lists.infradead.org; Tue, 10 Jan 2023 14:03:01 +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 488A361737; Tue, 10 Jan 2023 14:02:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 36251C433EF; Tue, 10 Jan 2023 14:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673359378; bh=9H+5eOtv0lKk4HSMYMJMclMcC4uh3lzgtY/ixVbfZVM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Irb+756cmGWT2+wchs6pAoVblX1BqQkvhE+90nZVtjD3Bb5tlsZjmBeYLz9/+RJfr ci7WMVw5l9ccU2je/XUeS83j32EGxD/0WLls2XZXYv33V/OGZKS5imdODSOIjbq4KM 3NCdwQoFzxBK5F8U7kdiLsvKnRXjkubJMKBQU6AwFjaLF6R4F6BRPL2C0u3P37m+d/ p8NpwzrZz8NXgHxSFKd+1kZHX7aUvRvtMMtXQpeA8xkZ16lNFF9OfiY1/Std+Uonf8 vRlX/hpKKYP715UIcKR6Wu1pBiFh54kVXt4ZyM/lFUt9D2V7SNOqconJIblOC8ezVk QbhZ942yPcbNA== From: Will Deacon To: joro@8bytes.org, Robin Murphy Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , linux-arm-kernel@lists.infradead.org, Vladimir Oltean , iommu@lists.linux.dev Subject: Re: [PATCH] iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer Date: Tue, 10 Jan 2023 14:02:52 +0000 Message-Id: <167335514704.53636.16139613567040237163.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230110_060259_795097_6E1657AB X-CRM114-Status: GOOD ( 10.40 ) 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 Thu, 15 Dec 2022 16:51:55 +0000, Robin Murphy wrote: > Although it's vanishingly unlikely that anyone would integrate an SMMU > within a coherent interconnect without also making the pagetable walk > interface coherent, the same effect happens if a coherent SMMU fails to > advertise CTTW correctly. This turns out to be the case on some popular > NXP SoCs, where VFIO started failing the IOMMU_CAP_CACHE_COHERENCY test, > even though IOMMU_CACHE *was* previously achieving the desired effect > anyway thanks to the underlying integration. > > [...] Applied to will (for-joerg/arm-smmu/fixes), thanks! [1/1] iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer https://git.kernel.org/will/c/259c2ec3c5f3 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel