On 07/08/2023 08:51, Jing Zhang wrote:

The usual event descriptions are "event=xxx" or "config=xxx", while the
event descriptions of CMN are "type=xxx, eventid=xxx" or more complex.

$cat /sys/bus/event_source/devices/arm_cmn_0/events/hnf_cache_fill
type=0x5,eventid=0x3

When adding aliases for events described as "event=xxx" or "config=xxx",
EventCode or ConfigCode can be used in the JSON files to describe the
events. But "eventid=xxx, type=xxx" cannot be supported at present.

If EventCode and ConfigCode is not added in the alias JSON file, the
event description will add "event=0" by default. So, even if the event
field is added to supplement "eventid=xxx" and "type=xxx", the final
parsing result will be "event=0, eventid=xxx, type=xxx".

Therefore, when EventCode and ConfigCode are missing in JSON, "event=0" is
no longer added by default. EventIdCode and Type are added to the event
field, and ConfigCode is moved into the event_field array which can also
guarantee its original function.

Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>

I'll let Ian check this change as he is more familiar with this code.

Thanks