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[104.188.17.28]) by smtp.gmail.com with ESMTPSA id 2sm11779409pjh.19.2019.12.26.14.17.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Dec 2019 14:17:44 -0800 (PST) From: Bjorn Andersson To: Will Deacon , Robin Murphy , Joerg Roedel Cc: linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Patrick Daly , Pratik Patel , Rob Clark Subject: [PATCH 0/3] iommu/arm-smmu: Qualcomm bootsplash/efifb Date: Thu, 26 Dec 2019 14:17:06 -0800 Message-Id: <20191226221709.3844244-1-bjorn.andersson@linaro.org> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org These patches implements the stream mapping inheritance that's necessary in order to not hit a security violation as the display hardware looses its stream mapping during initialization of arm-smmu in various Qualcomm platforms. This was previously posted as an RFC [1], changes since then involves the rebase and migration of the read-back code to the Qualcomm specific implementation, the mapping is maintained indefinitely - to handle probe deferring clients - and rewritten commit messages. [1] https://lore.kernel.org/linux-arm-msm/20190605210856.20677-1-bjorn.andersson@linaro.org/ Bjorn Andersson (3): iommu/arm-smmu: Don't blindly use first SMR to calculate mask iommu/arm-smmu: Expose s2cr and smr structs to impl iommu/arm-smmu: Allow inherting stream mapping from bootloader drivers/iommu/arm-smmu-qcom.c | 35 ++++++++++++++++++ drivers/iommu/arm-smmu.c | 70 +++++++++++++++++++++++------------ drivers/iommu/arm-smmu.h | 15 ++++++++ 3 files changed, 96 insertions(+), 24 deletions(-) -- 2.24.0