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X-IronPort-AV: E=McAfee;i="6600,9927,10801"; a="374740586" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="374740586" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Aug 2023 23:34:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10801"; a="736431396" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="736431396" Received: from wentaox1-mobl.ccr.corp.intel.com (HELO [10.254.215.205]) ([10.254.215.205]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Aug 2023 23:34:29 -0700 Message-ID: <4af2fcdb-6c38-8b54-3043-c6da15198dcc@linux.intel.com> Date: Mon, 14 Aug 2023 14:34:27 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 Subject: Re: [PATCH v6 18/25] iommu/ipmmu: Add an IOMMU_IDENTITIY_DOMAIN Content-Language: en-US To: Jason Gunthorpe , Andy Gross , Alim Akhtar , Bjorn Andersson , AngeloGioacchino Del Regno , Baolin Wang , Christophe Leroy , Gerald Schaefer , Heiko Stuebner , iommu@lists.linux.dev, Jernej Skrabec , Jonathan Hunter , Joerg Roedel , Kevin Tian , Konrad Dybcio , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, Russell King , linuxppc-dev@lists.ozlabs.org, Matthias Brugger , Matthew Rosato , Michael Ellerman , Nicholas Piggin , Orson Zhai , Rob Clark , Robin Murphy , Samuel Holland , Thierry Reding , Krishna Reddy , Chen-Yu Tsai , Will Deacon , Yong Wu , Chunyan Zhang References: <18-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> From: Baolu Lu In-Reply-To: <18-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thierry Reding , Niklas Schnelle , Steven Price , Nicolin Chen , Dmitry Osipenko , baolu.lu@linux.intel.com, Marek Szyprowski Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 2023/8/3 8:08, Jason Gunthorpe wrote: > This brings back the ops->detach_dev() code that commit > 1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it > into an IDENTITY domain. > > Also reverts commit 584d334b1393 ("iommu/ipmmu-vmsa: Remove > ipmmu_utlb_disable()") > > Signed-off-by: Jason Gunthorpe > --- > drivers/iommu/ipmmu-vmsa.c | 43 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 43 insertions(+) Reviewed-by: Lu Baolu Best regards, baolu