Re: [PATCH v8 20/32] x86,fs/resctrl: Fill in details of events for guid 0x26696143 and 0x26557651

[Reinette Chatre]

Hi Tony,

On 8/11/25 11:16 AM, Tony Luck wrote:
> These two guids describe the events supported on Clearwater Forest.

Please let changelog stand on its own and not be a continuation of the
subject.

> 
> The offsets in MMIO space are arranged in groups for each RMID.
> 
> E.g the "energy" counters for guid 0x26696143 are arranged like this:
> 
>         MMIO offset:0x0000 Counter for RMID 0 PMT_EVENT_ENERGY
>         MMIO offset:0x0008 Counter for RMID 0 PMT_EVENT_ACTIVITY
>         MMIO offset:0x0010 Counter for RMID 1 PMT_EVENT_ENERGY
>         MMIO offset:0x0018 Counter for RMID 1 PMT_EVENT_ACTIVITY
>         ...
>         MMIO offset:0x23F0 Counter for RMID 575 PMT_EVENT_ENERGY
>         MMIO offset:0x23F8 Counter for RMID 575 PMT_EVENT_ACTIVITY
> 
> Define these events in the file system code and add the events
> to the event_group structures.

Please add a note/link where these values are obtained from.

> 
> PMT_EVENT_ENERGY and PMT_EVENT_ACTIVITY are produced in fixed point
> format. File system code must output as floating point values.
> 
> Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx>
> ---

Reinette