From: Matt Redfearn <matt.redfearn@imgtec.com> To: Bjorn Andersson <bjorn.andersson@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com> Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Matt Subject: [PATCH v3 0/2] remoteproc: Add sysfs interface Date: Wed, 19 Oct 2016 13:05:46 +0100 [thread overview] Message-ID: <1476878748-32097-1-git-send-email-matt.redfearn@imgtec.com> (raw) It is often desireable to boot a remote processor with different firmware files, depending on the needs of the system at a particular time. This series adds a sysfs interface to the remoteproc core, exposing interfaces to manipulate the remote processor. One interface is the "state" file which performs the same function as the one in debugfs (which is removed later in the series). The other is a "firmware" file which allows retrieval of the name of the running firmware, and allows a new firmware to be loaded when written, as long as the remote processor is currently stopped. Some groundwork must be laid first, changing the storage mechanism of the firmware name such that it can be rewritten easily, then that is wired up to the new sysfs interface. This series is based on v4.9-rc1 Changes in v3: Drop call to rproc_add_virtio_devices from sysfs firmware_store Use strcspn to find firmware name length Explicit indexes for state strings Changes in v2: Have firmware_store perform the necessary steps inline. Use sysfs_streq when dealing with writes to sysfs files Matt Redfearn (2): remoteproc: Add a sysfs interface for firmware and state remoteproc: debugfs: Remove state entry which is duplicated is sysfs Documentation/ABI/testing/sysfs-class-remoteproc | 50 ++++++++ drivers/remoteproc/Makefile | 1 + drivers/remoteproc/remoteproc_core.c | 3 + drivers/remoteproc/remoteproc_debugfs.c | 71 ----------- drivers/remoteproc/remoteproc_internal.h | 5 + drivers/remoteproc/remoteproc_sysfs.c | 151 +++++++++++++++++++++++ 6 files changed, 210 insertions(+), 71 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-remoteproc create mode 100644 drivers/remoteproc/remoteproc_sysfs.c -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Matt Redfearn <matt.redfearn@imgtec.com> To: Bjorn Andersson <bjorn.andersson@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com> Cc: <linux-remoteproc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, "Matt Redfearn" <matt.redfearn@imgtec.com> Subject: [PATCH v3 0/2] remoteproc: Add sysfs interface Date: Wed, 19 Oct 2016 13:05:46 +0100 [thread overview] Message-ID: <1476878748-32097-1-git-send-email-matt.redfearn@imgtec.com> (raw) It is often desireable to boot a remote processor with different firmware files, depending on the needs of the system at a particular time. This series adds a sysfs interface to the remoteproc core, exposing interfaces to manipulate the remote processor. One interface is the "state" file which performs the same function as the one in debugfs (which is removed later in the series). The other is a "firmware" file which allows retrieval of the name of the running firmware, and allows a new firmware to be loaded when written, as long as the remote processor is currently stopped. Some groundwork must be laid first, changing the storage mechanism of the firmware name such that it can be rewritten easily, then that is wired up to the new sysfs interface. This series is based on v4.9-rc1 Changes in v3: Drop call to rproc_add_virtio_devices from sysfs firmware_store Use strcspn to find firmware name length Explicit indexes for state strings Changes in v2: Have firmware_store perform the necessary steps inline. Use sysfs_streq when dealing with writes to sysfs files Matt Redfearn (2): remoteproc: Add a sysfs interface for firmware and state remoteproc: debugfs: Remove state entry which is duplicated is sysfs Documentation/ABI/testing/sysfs-class-remoteproc | 50 ++++++++ drivers/remoteproc/Makefile | 1 + drivers/remoteproc/remoteproc_core.c | 3 + drivers/remoteproc/remoteproc_debugfs.c | 71 ----------- drivers/remoteproc/remoteproc_internal.h | 5 + drivers/remoteproc/remoteproc_sysfs.c | 151 +++++++++++++++++++++++ 6 files changed, 210 insertions(+), 71 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-remoteproc create mode 100644 drivers/remoteproc/remoteproc_sysfs.c -- 2.7.4
next reply other threads:[~2016-10-19 12:05 UTC|newest] Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-10-19 12:05 Matt Redfearn [this message] 2016-10-19 12:05 ` [PATCH v3 0/2] remoteproc: Add sysfs interface Matt Redfearn 2016-10-19 12:05 ` [PATCH v3 1/2] remoteproc: Add a sysfs interface for firmware and state Matt Redfearn 2016-10-19 12:05 ` Matt Redfearn 2016-11-03 23:40 ` Wendy Liang 2016-11-04 9:13 ` Matt Redfearn 2016-11-04 9:13 ` Matt Redfearn 2016-11-07 18:14 ` Wendy Liang 2016-10-19 12:05 ` [PATCH v3 2/2] remoteproc: debugfs: Remove state entry which is duplicated is sysfs Matt Redfearn 2016-10-19 12:05 ` Matt Redfearn 2016-10-27 14:10 ` [PATCH v3 0/2] remoteproc: Add sysfs interface Matt Redfearn 2016-10-27 14:10 ` Matt Redfearn 2016-11-01 0:31 ` Bjorn Andersson 2016-11-01 9:25 ` Matt Redfearn 2016-11-01 9:25 ` Matt Redfearn
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