Hi Mathieu,
Yes - only one timestamp generator per Coresight system is a fair assumption.
From A profile v8.4 onwards, any system that includes the self hosted
trace extensions can source the timestamp value from a counter in the core - which will enable it to be accurately correlated with system time. (see ARM Architecture Reference Manual for Armv8-A architecture profile.ARM DDI 0487F.b, section D3, AArch64 self hosted trace.)
Regards
Mike
On Tue, 7 Jul 2020 at 18:56, Mathieu Poirier mathieu.poirier@linaro.org wrote:
Good day to all,
From an architecture point of view is it fair to assume there can be only one timestamp generator per system or there can be more, something like one per CPU cluster? Either way, is the current practice expected to continue or there are plans to move to different design standards?
Thanks, Mathieu _______________________________________________ CoreSight mailing list CoreSight@lists.linaro.org https://lists.linaro.org/mailman/listinfo/coresight