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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Andy Gross <andy.gross@linaro.org>,
	David Brown <david.brown@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org
Subject: [PATCH v2 0/5] Qualcomm remote filesystem shared memory driver
Date: Wed,  2 Aug 2017 19:57:49 -0700	[thread overview]
Message-ID: <20170803025754.19101-1-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 RFSA
  soc: qcom: Remote FS memory driver
  arm64: dts: msm8916: Mark rmtfs node as qcom,rfsa compatible

 .../bindings/reserved-memory/qcom,rfsa.txt         |  44 ++++
 arch/arm64/boot/dts/qcom/msm8916.dtsi              |   3 +
 drivers/of/of_reserved_mem.c                       |  26 ++
 drivers/of/platform.c                              |  22 +-
 drivers/soc/qcom/Kconfig                           |   8 +
 drivers/soc/qcom/Makefile                          |   1 +
 drivers/soc/qcom/rfsa.c                            | 262 +++++++++++++++++++++
 include/linux/of_reserved_mem.h                    |   5 +
 8 files changed, 365 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/qcom,rfsa.txt
 create mode 100644 drivers/soc/qcom/rfsa.c

-- 
2.12.0

             reply	other threads:[~2017-08-03  2:58 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-03  2:57 Bjorn Andersson [this message]
2017-08-03  2:57 ` [PATCH v2 1/5] of/platform: Generalize /reserved-memory handling Bjorn Andersson
2017-08-03 17:40   ` Rob Herring
2017-08-03 23:33     ` Bjorn Andersson
2017-08-03  2:57 ` [PATCH v2 2/5] of: reserved_mem: Accessor for acquiring reserved_mem Bjorn Andersson
2017-08-03 17:45   ` Rob Herring
2017-08-03 23:31     ` Bjorn Andersson
2017-08-04 14:50       ` Rob Herring
2017-08-04 15:08         ` Bjorn Andersson
2017-08-03  2:57 ` [PATCH v2 3/5] dt-binding: soc: qcom: Add binding for RFSA Bjorn Andersson
2017-08-10 16:50   ` Rob Herring
2017-08-03  2:57 ` [PATCH v2 4/5] soc: qcom: Remote FS memory driver Bjorn Andersson
2017-08-05  9:58   ` Christoph Hellwig
2017-08-07 16:23     ` Bjorn Andersson
2017-08-11 10:00       ` Christoph Hellwig
2017-08-03  2:57 ` [PATCH v2 5/5] arm64: dts: msm8916: Mark rmtfs node as qcom,rfsa compatible Bjorn Andersson

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