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From: Rishabh Bhatnagar <rishabhb@codeaurora.org>
To: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org,
	tsoni@codeaurora.org, psodagud@codeaurora.org,
	sidgup@codeaurora.org,
	Rishabh Bhatnagar <rishabhb@codeaurora.org>
Subject: [PATCH v2 0/3] Expose recovery/coredump configuration from sysfs
Date: Thu, 27 Aug 2020 12:48:48 -0700	[thread overview]
Message-ID: <1598557731-1566-1-git-send-email-rishabhb@codeaurora.org> (raw)

From Android R onwards Google has restricted access to debugfs in user
and user-debug builds. This restricts access to most of the features
exposed through debugfs. This patch series adds a configurable option
to move the recovery/coredump interfaces to sysfs. If the feature
flag is selected it would move these interfaces to sysfs and remove
the equivalent debugfs interface. 'Coredump' and 'Recovery' are critical
interfaces that are required for remoteproc to work on Qualcomm Chipsets.
Coredump configuration needs to be set to "inline" in debug/test build
and "disabled" in production builds. Whereas recovery needs to be
"disabled" for debugging purposes and "enabled" on production builds.

Changelog:

v1 -> v2:
- Correct the contact name in the sysfs documentation.
- Remove the redundant write documentation for coredump/recovery sysfs
- Add a feature flag to make this interface switch configurable.

Rishabh Bhatnagar (3):
  remoteproc: Expose remoteproc configuration through sysfs
  remoteproc: Add coredump configuration to sysfs
  remoteproc: Add recovery configuration to sysfs

 Documentation/ABI/testing/sysfs-class-remoteproc |  44 ++++++++
 drivers/remoteproc/Kconfig                       |  12 +++
 drivers/remoteproc/remoteproc_debugfs.c          |  10 +-
 drivers/remoteproc/remoteproc_sysfs.c            | 126 +++++++++++++++++++++++
 4 files changed, 190 insertions(+), 2 deletions(-)

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


             reply	other threads:[~2020-08-27 19:49 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27 19:48 Rishabh Bhatnagar [this message]
2020-08-27 19:48 ` [PATCH v2 1/3] remoteproc: Expose remoteproc configuration through sysfs Rishabh Bhatnagar
2020-08-27 19:48 ` [PATCH v2 2/3] remoteproc: Add coredump configuration to sysfs Rishabh Bhatnagar
2020-09-10 17:58   ` Greg KH
2020-08-27 19:48 ` [PATCH v2 3/3] remoteproc: Add recovery " Rishabh Bhatnagar
2020-09-01 22:05 ` [PATCH v2 0/3] Expose recovery/coredump configuration from sysfs Mathieu Poirier
2020-09-02 23:14   ` rishabhb
2020-09-03 19:45     ` Mathieu Poirier
2020-09-03 23:59   ` Bjorn Andersson
2020-09-04 22:02     ` Mathieu Poirier
2020-09-09 17:27       ` rishabhb
2020-09-09 22:08         ` rishabhb
     [not found]       ` <0101017473e8b9f1-9c800bfd-d724-473f-96b8-c43920cc8967-000000@us-west-2.amazonses.com>
2020-09-10 17:46         ` Mathieu Poirier
2020-09-10 17:59       ` Greg KH
2020-09-15  9:51 ` Arnaud POULIQUEN
2020-09-26  3:31   ` Bjorn Andersson
2020-09-29  7:43     ` Arnaud POULIQUEN
2020-10-14  0:32       ` Bjorn Andersson

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