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8e996a2874
Some STM devices adjust software assigned master numbers depending on the trace source and its runtime state and whatnot. This patch adds a sysfs attribute to inform the trace-side software that master numbers assigned to software sources will not match those in the STP stream, so that, for example, master/channel allocation policy can be adjusted accordingly. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
802 B
Plaintext
25 lines
802 B
Plaintext
What: /sys/class/stm/<stm>/masters
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Date: June 2015
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KernelVersion: 4.3
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Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Description:
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Shows first and last available to software master numbers on
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this STM device.
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What: /sys/class/stm/<stm>/channels
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Date: June 2015
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KernelVersion: 4.3
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Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Description:
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Shows the number of channels per master on this STM device.
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What: /sys/class/stm/<stm>/hw_override
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Date: March 2016
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KernelVersion: 4.7
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Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Description:
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Reads as 0 if master numbers in the STP stream produced by
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this stm device will match the master numbers assigned by
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the software or 1 if the stm hardware overrides software
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assigned masters.
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