The channel context is referenced from the fastrpc user and might as
user space holds the file descriptor open outlive the fastrpc device,
which is removed when the remote processor is shutting down.
Reference count the channel context in order to retain this object until
all references has been relinquished.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mayank Chopra <mak.chopra@codeaurora.org>
Signed-off-by: Abhinav Asati <asatiabhi@codeaurora.org>
Signed-off-by: Vamsi Singamsetty <vamssi@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190829092926.12037-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Intel Remote System Update (RSU) driver exposes interfaces access
through the Intel Service Layer to user space via sysfs interface.
The RSU interfaces report and control some of the optional RSU features
on Intel Stratix 10 SoC.
The RSU feature provides a way for customers to update the boot
configuration of a Intel Stratix 10 SoC device with significantly reduced
risk of corrupting the bitstream storage and bricking the system.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org>
Link: https://lore.kernel.org/r/1567516701-26026-3-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Extend Intel Stratix10 service layer driver to support new RSU notify and
MAX_RETRY with watchdog event.
RSU is used to provide our customers with protection against loading bad
bitstream onto their devices when those devices are booting from flash
RSU notifies provides users with an API to notify the firmware of the
state of hard processor system.
To deal with watchdog event, RSU provides a way for user to retry the
current running image several times before giving up and starting normal
RSU failover flow.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org>
Link: https://lore.kernel.org/r/1567516701-26026-2-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add tests cases for checking request_firmware_into_buf api.
API was introduced into kernel with no testing present previously.
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190822184005.901-3-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add test config into_buf to allow request_firmware_into_buf to be
called instead of request_firmware/request_firmware_direct. The number
of parameters differ calling request_firmware_into_buf and support
has not been added to test such api in test_firmware until now.
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190822184005.901-2-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The VPD implementation from Chromium Vital Product Data project used to
parse data from untrusted input without checking if the meta data is
invalid or corrupted. For example, the size from decoded content may
be negative value, or larger than whole input buffer. Such invalid data
may cause buffer overflow.
To fix that, the size parameters passed to vpd_decode functions should
be changed to unsigned integer (u32) type, and the parsing of entry
header should be refactored so every size field is correctly verified
before starting to decode.
Fixes: ad2ac9d5c5 ("firmware: Google VPD: import lib_vpd source files")
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190830022402.214442-1-hungte@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
syzbot found that a thread can stall for minutes inside read_mem() or
write_mem() after that thread was killed by SIGKILL [1]. Reading from
iomem areas of /dev/mem can be slow, depending on the hardware.
While reading 2GB at one read() is legal, delaying termination of killed
thread for minutes is bad. Thus, allow reading/writing /dev/mem and
/dev/kmem to be preemptible and killable.
[ 1335.912419][T20577] read_mem: sz=4096 count=2134565632
[ 1335.943194][T20577] read_mem: sz=4096 count=2134561536
[ 1335.978280][T20577] read_mem: sz=4096 count=2134557440
[ 1336.011147][T20577] read_mem: sz=4096 count=2134553344
[ 1336.041897][T20577] read_mem: sz=4096 count=2134549248
Theoretically, reading/writing /dev/mem and /dev/kmem can become
"interruptible". But this patch chose "killable". Future patch will make
them "interruptible" so that we can revert to "killable" if some program
regressed.
[1] https://syzkaller.appspot.com/bug?id=a0e3436829698d5824231251fad9d8e998f94f5e
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@vger.kernel.org>
Reported-by: syzbot <syzbot+8ab2d0f39fb79fe6ca40@syzkaller.appspotmail.com>
Link: https://lore.kernel.org/r/1566825205-10703-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently /sys/kernel/debug/binder/proc contains
the debug data for every binder_proc instance.
This patch makes this information also available
in a binderfs instance mounted with a mount option
"stats=global" in addition to debugfs. The patch does
not affect the presence of the file in debugfs.
If a binderfs instance is mounted at path /dev/binderfs,
this file would be present at /dev/binderfs/binder_logs/proc.
This change provides an alternate way to access this file when debugfs
is not mounted.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Link: https://lore.kernel.org/r/20190903161655.107408-5-hridya@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, the binder transaction log files 'transaction_log'
and 'failed_transaction_log' live in debugfs at the following locations:
/sys/kernel/debug/binder/failed_transaction_log
/sys/kernel/debug/binder/transaction_log
This patch makes these files also available in a binderfs instance
mounted with the mount option "stats=global".
It does not affect the presence of these files in debugfs.
If a binderfs instance is mounted at path /dev/binderfs, the location of
these files will be as follows:
/dev/binderfs/binder_logs/failed_transaction_log
/dev/binderfs/binder_logs/transaction_log
This change provides an alternate option to access these files when
debugfs is not mounted.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Link: https://lore.kernel.org/r/20190903161655.107408-4-hridya@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following binder stat files currently live in debugfs.
/sys/kernel/debug/binder/state
/sys/kernel/debug/binder/stats
/sys/kernel/debug/binder/transactions
This patch makes these files available in a binderfs instance
mounted with the mount option 'stats=global'. For example, if a binderfs
instance is mounted at path /dev/binderfs, the above files will be
available at the following locations:
/dev/binderfs/binder_logs/state
/dev/binderfs/binder_logs/stats
/dev/binderfs/binder_logs/transactions
This provides a way to access them even when debugfs is not mounted.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20190903161655.107408-3-hridya@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, all binder state and statistics live in debugfs.
We need this information even when debugfs is not mounted.
This patch adds the mount option 'stats' to enable a binderfs
instance to have binder debug information present in the same.
'stats=global' will enable the global binder statistics. In
the future, 'stats=local' will enable binder statistics local
to the binderfs instance. The two modes 'global' and 'local'
will be mutually exclusive. 'stats=global' option is only available
for a binderfs instance mounted in the initial user namespace.
An attempt to use the option to mount a binderfs instance in
another user namespace will return an EPERM error.
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20190903161655.107408-2-hridya@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, since each binderfs instance needs its own
private binder devices, every time a binderfs instance is
mounted, all the default binder devices need to be created
via the BINDER_CTL_ADD IOCTL. This patch aims to
add a solution to automatically create the default binder
devices for each binderfs instance that gets mounted.
To achieve this goal, when CONFIG_ANDROID_BINDERFS is set,
the default binder devices specified by CONFIG_ANDROID_BINDER_DEVICES
are created in each binderfs instance instead of global devices
being created by the binder driver.
Co-developed-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20190808222727.132744-2-hridya@google.com
Link: https://lore.kernel.org/r/20190904110704.8606-2-christian.brauner@ubuntu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Length of a binderfs device name cannot exceed BINDERFS_MAX_NAME.
This patch adds a check in binderfs_init() to ensure the same
for the default binder devices that will be created in every
binderfs instance.
Co-developed-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20190808222727.132744-3-hridya@google.com
Link: https://lore.kernel.org/r/20190904110704.8606-3-christian.brauner@ubuntu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Time has come to get rid of the old eeprom driver. The at24 driver
should be used instead. So mark the eeprom driver as deprecated and
give users some time to migrate. Then we can remove the legacy
eeprom driver completely.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190902104838.058725c2@endymion
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This pull-request contains the FPGA DFL changes for 5.4
- The first three patches are cleanup patches making use of dev_groups and
making the init callback optional.
- One patch adds userclock sysfs entries that are DFL specific
- One patch exposes AFU port disable/enable functions
- One patch adds error reporting
- One patch adds AFU SignalTap support
- One patch adds FME global error reporting
- The final patch is a documentation patch that decribes the
virtualization interfaces
This patchset requires the 'dev_groups_all_drivers' tag from drivers
core for the dev_groups refactoring as well as the DFL changes already
in char-misc-next.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next
Moritz writes:
FPGA DFL Changes for 5.4
This pull-request contains the FPGA DFL changes for 5.4
- The first three patches are cleanup patches making use of dev_groups and
making the init callback optional.
- One patch adds userclock sysfs entries that are DFL specific
- One patch exposes AFU port disable/enable functions
- One patch adds error reporting
- One patch adds AFU SignalTap support
- One patch adds FME global error reporting
- The final patch is a documentation patch that decribes the
virtualization interfaces
This patchset requires the 'dev_groups_all_drivers' tag from drivers
core for the dev_groups refactoring as well as the DFL changes already
in char-misc-next.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
* tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
Documentation: fpga: dfl: add descriptions for virtualization and new interfaces.
fpga: dfl: fme: add global error reporting support
fpga: dfl: afu: add STP (SignalTap) support
fpga: dfl: afu: add error reporting support.
fpga: dfl: afu: expose __afu_port_enable/disable function.
fpga: dfl: afu: add userclock sysfs interfaces.
fpga: dfl: afu: convert platform_driver to use dev_groups
fpga: dfl: fme: convert platform_driver to use dev_groups
fpga: dfl: make init callback optional
driver core: add dev_groups to all drivers
This patch adds virtualization support description for DFL based
FPGA devices (based on PCIe SRIOV), and introductions to new
interfaces added by new dfl private feature drivers.
[mdf@kernel.org: Fixed up to make it work with new reStructuredText docs]
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This patch adds support for global error reporting for FPGA
Management Engine (FME), it introduces sysfs interfaces to
report different error detected by the hardware, and allow
user to clear errors or inject error for testing purpose.
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
STP (SignalTap) is one of the private features under the port for
debugging. This patch adds private feature driver support for it
to allow userspace applications to mmap related mmio region and
provide STP service.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Error reporting is one important private feature, it reports error
detected on port and accelerated function unit (AFU). It introduces
several sysfs interfaces to allow userspace to check and clear
errors detected by hardware.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
As these two functions are used by other private features within the
same driver module but different driver files. e.g. in error reporting
private feature, it requires to clear errors when port is in reset.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This patch introduces userclock sysfs interfaces for AFU, user
could use these interfaces for clock setting to AFU.
Please note that, this is only working for port header feature
with revision 0, for later revisions, userclock setting is moved
to a separated private feature, so one revision sysfs interface
is exposed to userspace application for this purpose too.
Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This patch takes advantage of driver core which helps to create
and remove sysfs attribute files, so there is no need to register
sysfs entries manually in dfl-afu platform river code.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This patch takes advantage of driver core which helps to create
and remove sysfs attribute files, so there is no need to register
sysfs entries manually in dfl-fme platform river code.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This patch makes init callback of sub features optional. With
this change, people don't need to prepare any empty init callback.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Persistent tag for others to pull this branch from
This is the first patch in a longer series that adds the ability for the
driver core to create and remove a list of attribute groups
automatically when the device is bound/unbound from a specific driver.
See:
https://lore.kernel.org/r/20190731124349.4474-2-gregkh@linuxfoundation.org
for details on this patch, and examples of how to use it in other
drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'dev_groups_all_drivers' into fpga-dfl-for-5.4
dev_groups added to struct driver
Persistent tag for others to pull this branch from
This is the first patch in a longer series that adds the ability for the
driver core to create and remove a list of attribute groups
automatically when the device is bound/unbound from a specific driver.
See:
https://lore.kernel.org/r/20190731124349.4474-2-gregkh@linuxfoundation.org
for details on this patch, and examples of how to use it in other
drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds barrier packets in the trace stream when the offset in the
data buffer needs to be moved forward. Otherwise the decoder isn't aware
of the break in the stream and can't synchronise itself with the trace
data.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Yabin Cui <yabinc@google.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-18-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If less space is available in the perf ring buffer than the ETR buffer,
barrier packets inserted in the trace stream by tmc_sync_etr_buf() are
skipped over when the head of the buffer is moved forward, resulting in
traces that can't be decoded.
This patch decouples the process of syncing ETR buffers and the addition
of barrier packets in order to perform the latter once the offset in the
trace buffer has been properly computed.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-17-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make the computation of a memory mask representing the width of the memory
bus into a function so that it can be re-used by the ETR driver.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-16-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When tracing etm data of multiple threads on multiple cpus through
perf interface, each cpu has a unique etr_perf_buffer while sharing
the same etr device. There is no guarantee that the last cpu starts
etm tracing also stops last. This makes perf_data check fail.
Fix it by checking etr_buf instead of etr_perf_buffer.
Also move the code setting and clearing perf_buf to more suitable
places.
Fixes: 3147da92a8 ("coresight: tmc-etr: Allocate and free ETR memory buffers for CPU-wide scenarios")
Signed-off-by: Yabin Cui <yabinc@google.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-15-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
TMC etr always copies all available data to perf aux buffer, which
may exceed the available space in perf aux buffer. It isn't suitable
for not-snapshot mode, because:
1) It may overwrite previously written data.
2) It may make the perf_event_mmap_page->aux_head report having more
or less data than the reality.
So change to only copy the latest data fitting the available space in
perf aux buffer.
Signed-off-by: Yabin Cui <yabinc@google.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-14-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To improve clarity, let's update the comment for etm4_os_unlock
to use the name of the register as per the ETM architecture
specification.
The existing comment is also misleading as it suggests any value
written to TRCOSLAR unlocks the trace registers, however it must
be '0' - let's also correct this.
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-13-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Given that the user-exposed module parameter for 'boot_enable' matches
the variable that it sets, let's use module_param instead of
module_param_named.
Let's also use octal permissions (checkpatch recommends this) and
provide a module parameter description.
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-12-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Synchronization is recommended before disabling the trace registers
to prevent any start or stop points being speculative at the point
of disabling the unit (section 7.3.77 of ARM IHI 0064D).
Synchronization is also recommended after programming the trace
registers to ensure all updates are committed prior to normal code
resuming (section 4.3.7 of ARM IHI 0064D).
Let's ensure these syncronization points are present in the code
and clearly commented.
Note that we could rely on the barriers in CS_LOCK and
coresight_disclaim_device_unlocked or the context switch to user
space - however coresight may be of use in the kernel.
On armv8 the mb macro is defined as dsb(sy) - Given that the etm4x is
only used on armv8 let's directly use dsb(sy) instead of mb(). This
removes some ambiguity and makes it easier to correlate the code with
the TRM.
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Fixed capital letter for "use" in title]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-11-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In addition to unlocking the OS lock, etm4_os_unlock will also
set the os_unlock flag. Therefore let's avoid unnecessarily
setting os_unlock flag outside of this function.
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Fixed capital letter for "remove" in the title]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-10-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We warn the users of obsolete bindings in the DT for coresight replicator
and funnel drivers. However we use pr_warn_once() which doesn't give a clue
about which device it is bound to. Let us use dev_warn_once() to give the
context.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-8-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CoreSight TMC-ETR must have the non-secure invasive debug access
enabled for use by self-hosted tracing. Without it, there is no
point in enabling the ETR. So, let us check it in the TMC_AUTHSTATUS
register and fail the probe if it is disabled.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-7-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have so far ignored the memory errors, assuming that we have perfect
hardware and driver. Let us handle the memory errors reported by the
TMC ETR in status and truncate the buffer.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Removed ASCII smiley face from changelog]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We now use refcounts for the etr_buf users. Let us initialize it
while we allocate it.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-5-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for coresight CPU debug module on Qualcomm
Kryo CPUs. This patch adds the UCI entries for Kryo CPUs
found on MSM8996 which shares the same PIDs as ETMs.
Without this, below error is observed on MSM8996:
[ 5.429867] OF: graph: no port node found in /soc/debug@3810000
[ 5.429938] coresight-etm4x: probe of 3810000.debug failed with error -22
[ 5.435415] coresight-cpu-debug 3810000.debug: Coresight debug-CPU0 initialized
[ 5.446474] OF: graph: no port node found in /soc/debug@3910000
[ 5.448927] coresight-etm4x: probe of 3910000.debug failed with error -22
[ 5.454681] coresight-cpu-debug 3910000.debug: Coresight debug-CPU1 initialized
[ 5.487765] OF: graph: no port node found in /soc/debug@3a10000
[ 5.488007] coresight-etm4x: probe of 3a10000.debug failed with error -22
[ 5.493024] coresight-cpu-debug 3a10000.debug: Coresight debug-CPU2 initialized
[ 5.501802] OF: graph: no port node found in /soc/debug@3b10000
[ 5.512901] coresight-etm4x: probe of 3b10000.debug failed with error -22
[ 5.513192] coresight-cpu-debug 3b10000.debug: Coresight debug-CPU3 initialized
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-4-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of overriding the peripheral id(PID) check in AMBA
by hardcoding them in DT, add the PIDs to the ETM4x driver.
Here we use Unique Component Identifier(UCI) for MSM8996
since the ETM and CPU debug module shares the same PIDs.
SDM845 does not support CPU debug module.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid an extra function call in two function implementations
by using a ternary operator instead of a conditional statement.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the second set of changes for the 5.4 merge window.
This patchset adds support for the v2 revision of Intel (Altera)'s CVP
parts including the Stratix 10.
All of this patches have been reviewed and been in the last few
linux-next releases without issues.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-cvp-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next
Moritz writes:
FPGA Manager changes for 5.4-rc1
Here is the second set of changes for the 5.4 merge window.
This patchset adds support for the v2 revision of Intel (Altera)'s CVP
parts including the Stratix 10.
All of this patches have been reviewed and been in the last few
linux-next releases without issues.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
* tag 'fpga-cvp-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
fpga: altera-cvp: Add Stratix10 (V2) Support
fpga: altera-cvp: Preparation for V2 parts.
fpga: altera-cvp: Discover Vendor Specific offset
The biggest change is the addition of Intel Ice Lake integrated
Thunderbolt support. There are also a couple of smaller changes like
converting the driver to use better device property interface and use
correct format string in service key attribute.
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Merge tag 'thunderbolt-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into char-misc-next
Mika writes:
thunderbolt: Changes for v5.4 merge window
The biggest change is the addition of Intel Ice Lake integrated
Thunderbolt support. There are also a couple of smaller changes like
converting the driver to use better device property interface and use
correct format string in service key attribute.
* tag 'thunderbolt-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
ACPI / property: Add two new Thunderbolt property GUIDs to the list
thunderbolt: Add support for Intel Ice Lake
thunderbolt: Expose active parts of NVM even if upgrade is not supported
thunderbolt: Hide switch attributes that are not set
thunderbolt: Do not fail adding switch if some port is not implemented
thunderbolt: Use 32-bit writes when writing ring producer/consumer
thunderbolt: Move NVM upgrade support flag to struct icm
thunderbolt: Correct path indices for PCIe tunnel
thunderbolt: Show key using %*pE not %*pEp
thunderbolt: Switch to use device_property_count_uXX()
*) Add a new PHY driver for Lantiq VRX200/ARX300 PCIe PHY
*) Add missing of_node_put() to a bunch of drivers using
for_each_available_child_of_node()
*) Add RXAUI/PCIe/SATA/USB3 support in Marvell's Armada
CP110 COMPHY
*) Other misc fixes and cleanup
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into char-misc-next
Kishon writes:
phy: for 5.4
*) Add a new PHY driver for Lantiq VRX200/ARX300 PCIe PHY
*) Add missing of_node_put() to a bunch of drivers using
for_each_available_child_of_node()
*) Add RXAUI/PCIe/SATA/USB3 support in Marvell's Armada
CP110 COMPHY
*) Other misc fixes and cleanup
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* tag 'phy-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: (30 commits)
phy: marvell: phy-mvebu-cp110-comphy: rename instances of DLT
phy: marvell: phy-mvebu-cp110-comphy: implement RXAUI support
dt-bindings: pci: add PHY properties to Armada 7K/8K controller bindings
dt-bindings: phy: Add Marvell COMPHY clocks
phy: mvebu-cp110-comphy: Update comment about powering off all lanes at boot
phy: mvebu-cp110-comphy: Add PCIe support
phy: mvebu-cp110-comphy: Cosmetic change in a helper
phy: mvebu-cp110-comphy: Add SATA support
phy: mvebu-cp110-comphy: Add USB3 host/device support
phy: mvebu-cp110-comphy: Allow non-Ethernet modes to be configured
phy: mvebu-cp110-comphy: Rename the macro handling only Ethernet modes
phy: mvebu-cp110-comphy: Add RXAUI support
phy: mvebu-cp110-comphy: List already supported Ethernet modes
phy: mvebu-cp110-comphy: Add SMC call support
phy: mvebu-cp110-comphy: Explicitly initialize the lane submode
phy: mvebu-cp110-comphy: Add clocks support
phy-rockchip-inno-hdmi: Fix RK3328_TERM_RESISTOR_CALIB_SPEED_7_0's third value
phy: qcom-qmp: Correct ready status, again
phy: qualcomm: phy-qcom-qmp: Add of_node_put() before return
phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current
...
Here are the interconnect driver updates for the 5.4-rc1 merge window.
- New feature is the path tagging support that helps with grouping and
aggregating the bandwidth requests into separate buckets based on a tag.
- The first user of the path tagging is the Qualcomm sdm845 driver that
now implements support for wake/sleep sets. This allows consumer drivers
to express their bandwidth needs for the different CPU power states.
- New interconnect driver for the qcs404 platforms and a driver that
communicates bandwidth requests with remote processor over shared memory.
- Cleanups and fixes.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Merge tag 'icc-5.4-rc1' of https://git.linaro.org/people/georgi.djakov/linux into char-misc-next
Georgi writes:
interconnect patches for 5.4
Here are the interconnect driver updates for the 5.4-rc1 merge window.
- New feature is the path tagging support that helps with grouping and
aggregating the bandwidth requests into separate buckets based on a tag.
- The first user of the path tagging is the Qualcomm sdm845 driver that
now implements support for wake/sleep sets. This allows consumer drivers
to express their bandwidth needs for the different CPU power states.
- New interconnect driver for the qcs404 platforms and a driver that
communicates bandwidth requests with remote processor over shared memory.
- Cleanups and fixes.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
* tag 'icc-5.4-rc1' of https://git.linaro.org/people/georgi.djakov/linux:
drivers: qcom: Add BCM vote macro to header
interconnect: qcom: remove COMPILE_TEST from CONFIG_INTERCONNECT_QCOM_QCS404
interconnect: qcom: Add QCS404 interconnect provider driver
interconnect: qcom: Add interconnect RPM over SMD driver
dt-bindings: interconnect: Add Qualcomm QCS404 DT bindings
interconnect: qcom: Add tagging and wake/sleep support for sdm845
interconnect: Add pre_aggregate() callback
interconnect: Add support for path tags
Detailed description for this pull request:
1. Clean up the and fix the minor issue of extcon provider driver
- extcon-arizona/max77843 replace the helper function
with more correct helper function without operation changes.
- extcon-fsa9480 supports the FSA880 variant by adding the compatible name.
- extcon-arizona updates the dt-binding file for the readability.
- extcon-gpio initializes the interrupt flags according to active-low state.
- Clean up extcon-sm5502/axp288/adc-jack
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Merge tag 'extcon-next-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for 5.4
Detailed description for this pull request:
1. Clean up the and fix the minor issue of extcon provider driver
- extcon-arizona/max77843 replace the helper function
with more correct helper function without operation changes.
- extcon-fsa9480 supports the FSA880 variant by adding the compatible name.
- extcon-arizona updates the dt-binding file for the readability.
- extcon-gpio initializes the interrupt flags according to active-low state.
- Clean up extcon-sm5502/axp288/adc-jack
* tag 'extcon-next-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon:
extcon: adc-jack: Remove dev_err() usage after platform_get_irq()
extcon: axp288: Use for_each_set_bit() in axp288_extcon_log_rsi()
extcon: axp288: Add missed error check
extcon: sm5502: Add IRQ_ONESHOT
extcon: gpio: Request reasonable interrupts
extcon: arizona: Update binding example to use available defines
extcon: fsa9480: Support the FSA880 variant
extcon: extcon-max77843: convert to i2c_new_dummy_device
extcon: arizona: Switch to use device_property_count_u32()
