On 05/01/2024 06:58, Linu Cherian wrote: > memory-region 0: Reserved trace buffer memory > > TMC ETR: When available, use this reserved memory region for > trace data capture. Same region is used for trace data > retention after a panic or watchdog reset. > > TMC ETF: When available, use this reserved memory region for > trace data retention synced from internal SRAM after a panic or > watchdog reset. > > memory-region 1: Reserved meta data memory > > TMC ETR, ETF: When available, use this memory for register > snapshot retention synced from hardware registers after a panic > or watchdog reset. > > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> ... > + memory-region: > + items: > + - description: Reserved trace buffer memory for ETR and ETF sinks. > + For ETR, this reserved memory region is used for trace data capture. > + Same region is used for trace data retention as well after a panic > + or watchdog reset. > + This reserved memory region is used as trace buffer or used for trace > + data retention only if specifically selected by the user in sysfs > + interface. > + The default memory usage models for ETR in sysfs/perf modes are > + otherwise unaltered. > + > + For ETF, this reserved memory region is used by default for > + retention of trace data synced from internal SRAM after a panic > + or watchdog reset. > + - description: Reserved meta data memory. Used for ETR and ETF sinks > + for storing metadata. If there is going to be new version/resend, add a blank line here. Keep the Rb tag. Best regards, Krzysztof
