The goal of those two patches is to add debug and trace capabilities to CMA on going development.
The first patch allow to dump CMA bitmap status by a simple "cat /sys/kernel/debug/cma" command line.
The second add events trace points that can be used for performance and/or log with trace tools:
- to enable it "echo 1 > /sys/kernel/debug/tracing/events/cma/enable"
- to get the log "cat /sys/kernel/debug/tracing/events/trace"
Regards,
Benjamin
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Benjamin Gaignard
Multimedia Working Group
Linaro.org │ Open source software for ARM SoCs
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