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
next reply other threads:[~2019-12-26 22:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-26 22:17 Bjorn Andersson [this message]
2019-12-26 22:17 ` [PATCH 1/3] iommu/arm-smmu: Don't blindly use first SMR to calculate mask Bjorn Andersson
2019-12-26 22:17 ` [PATCH 2/3] iommu/arm-smmu: Expose s2cr and smr structs to impl Bjorn Andersson
2019-12-26 22:17 ` [PATCH 3/3] iommu/arm-smmu: Allow inherting stream mapping from bootloader Bjorn Andersson
2020-01-08 9:16 ` [PATCH 0/3] iommu/arm-smmu: Qualcomm bootsplash/efifb Will Deacon
[not found] ` <CAF2Aj3iKk2LSA5XC76pNiLV8a76BkibUitof-dix8rqkc0qiow@mail.gmail.com>
2021-05-24 12:48 ` Robin Murphy
2021-05-25 3:28 ` Bjorn Andersson
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