[PATCH 0/3] iommu/arm-smmu: Qualcomm bootsplash/efifb

From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>
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 <pdaly@codeaurora.org>,
	Pratik Patel <pratikp@codeaurora.org>,
	Rob Clark <robdclark@gmail.com>
Subject: [PATCH 0/3] iommu/arm-smmu: Qualcomm bootsplash/efifb
Date: Thu, 26 Dec 2019 14:17:06 -0800	[thread overview]
Message-ID: <20191226221709.3844244-1-bjorn.andersson@linaro.org> (raw)

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