From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Andy Gross <andy.gross@linaro.org>
Cc: Anton Vorontsov <anton@enomsg.org>,
Colin Cross <ccross@android.com>,
David Brown <david.brown@linaro.org>,
Frank Rowand <frowand.list@gmail.com>,
Kees Cook <keescook@chromium.org>,
Rob Herring <robh+dt@kernel.org>, Tony Luck <tony.luck@intel.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-soc@vger.kernel.org
Subject: [PATCH v3 0/5] Qualcomm remote filesystem shared memory driver
Date: Wed, 4 Oct 2017 20:32:53 -0700 [thread overview]
Message-ID: <20171005033258.12825-1-bjorn.andersson@linaro.org> (raw)
Some remote processors (in particular the modem) found in Qualcomm platforms
stores configuration parameters and other data in a file system. As the remotes
does not have direct storage access it needs to relay block accesses through a
service running on the application CPU.
The memory is described in DeviceTree by a new reserved-memory compatible and
the implementation provides the user space service a read/write interface to
this chunk of memory.
Bjorn Andersson (5):
of/platform: Generalize /reserved-memory handling
of: reserved_mem: Accessor for acquiring reserved_mem
dt-binding: soc: qcom: Add binding for rmtfs memory
soc: qcom: Remote filesystem memory driver
arm64: dts: msm8916: Mark rmtfs node as qcom,rmtfs-mem compatible
.../bindings/reserved-memory/qcom,rmtfs-mem.txt | 51 ++++
arch/arm64/boot/dts/qcom/msm8916.dtsi | 3 +
drivers/of/of_reserved_mem.c | 26 ++
drivers/of/platform.c | 19 +-
drivers/soc/qcom/Kconfig | 11 +
drivers/soc/qcom/Makefile | 1 +
drivers/soc/qcom/rmtfs_mem.c | 272 +++++++++++++++++++++
include/linux/of_reserved_mem.h | 5 +
8 files changed, 380 insertions(+), 8 deletions(-)
create mode 100644 Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt
create mode 100644 drivers/soc/qcom/rmtfs_mem.c
--
2.12.0
next reply other threads:[~2017-10-05 3:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-05 3:32 Bjorn Andersson [this message]
2017-10-05 3:32 ` [PATCH v3 1/5] of/platform: Generalize /reserved-memory handling Bjorn Andersson
[not found] ` <20171005033258.12825-2-bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-10-10 0:50 ` Rob Herring
2017-10-05 3:32 ` [PATCH v3 2/5] of: reserved_mem: Accessor for acquiring reserved_mem Bjorn Andersson
2017-10-10 0:52 ` Rob Herring
2017-10-05 3:32 ` [PATCH v3 3/5] dt-binding: soc: qcom: Add binding for rmtfs memory Bjorn Andersson
2017-10-05 3:32 ` [PATCH v3 4/5] soc: qcom: Remote filesystem memory driver Bjorn Andersson
2017-10-10 0:49 ` Rob Herring
2017-10-05 3:32 ` [PATCH v3 5/5] arm64: dts: msm8916: Mark rmtfs node as qcom,rmtfs-mem compatible Bjorn Andersson
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