devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Bjorn Andersson <bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
To: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Frank Rowand
	<frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Andy Gross <andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	David Brown <david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.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

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

             reply	other threads:[~2017-08-03  2:57 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
     [not found]     ` <CAL_JsqKBre5yPJHG3s+8Y7_hgj0_r35nNZc3QiL4HbWLuFx=Bg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
     [not found]   ` <20170803025754.19101-3-bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
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
     [not found] ` <20170803025754.19101-1-bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170803025754.19101-1-bjorn.andersson@linaro.org \
    --to=bjorn.andersson-qsej5fyqhm4dnm+yrofe0a@public.gmane.org \
    --cc=andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
    --cc=david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
    --cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=mark.rutland-5wv7dgnIgG8@public.gmane.org \
    --cc=robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).