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Fix spelling and gramatical errors
Signed-off-by: Remington Brasga <rbrasga@uci.edu>
[ Adjusted title ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240428011401.1080-1-rbrasga@uci.edu
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Fix typos in Documentation/ABI. The changes are in descriptions or
comments where they shouldn't affect use of the ABIs.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230814212822.193684-2-helgaas@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Use the TraceID API to allocate ETM trace IDs dynamically.
As with the etm4x we allocate on enable / disable for perf,
allocate on enable / reset for sysfs.
Additionally we allocate on sysfs file read as both perf and sysfs
can read the ID before enabling the hardware.
Remove sysfs option to write trace ID - which is inconsistent with
both the dynamic allocation method and the fixed allocation method
previously used.
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230116124928.5440-7-mike.leach@linaro.org
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Unfortunately, (R) and (W) are valid markups for enumerated
lists, as described at:
https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html#enumerated-lists
So, we ned to replace them by:
(R) -> (Read)
(W) -> (Write)
As otherwise, (R) will be displayed as R., with is not what
it is desired.
There's no need to touch (RO) and (RW).
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/6e81ad8064f3ed4f8dc265086fdf1c618043f935.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Supplementing ABI documentation with a description of the newly
added interface.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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SysFS rules stipulate that only one value can be conveyed per
file. As such splitting the "status" interface in individual files.
This is also useful for user space applications - that way they can
probe each file individually rather than having to parse a list of entries.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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'ctxid_val' array was used to store the value of ETM context ID comparator
which actually stores the process ID to be traced, so using 'ctxid_pid' as
its name instead make it easier to understand.
This patch also changes the ABI, it is normally not allowed, but
fortunately it is a testing ABI and very new for now. Nevertheless,
if you don't think it should be changed, we could always add an alias
for userspace.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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