Re: [PATCH v2] ACPI: ARM Performance Monitoring Unit Table (APMT) initial support

Sudeep Holla
2022-10-14T11:00:49Z

Hi Besar,

On Wed, Sep 28, 2022 at 07:28:34PM -0500, Besar Wicaksono wrote:
> ARM Performance Monitoring Unit Table describes the properties of PMU
> support in ARM-based system. The APMT table contains a list of nodes,
> each represents a PMU in the system that conforms to ARM CoreSight PMU
> architecture. The properties of each node include information required
> to access the PMU (e.g. MMIO base address, interrupt number) and also
> identification. For more detailed information, please refer to the
> specification below:
> * APMT: https://developer.arm.com/documentation/den0117/latest
> * ARM Coresight PMU:
> https://developer.arm.com/documentation/ihi0091/latest
>
> The initial support adds the detection of APMT table and generic
> infrastructure to create platform devices for ARM CoreSight PMUs.
> Similar to IORT the root pointer of APMT is preserved during runtime
> and each PMU platform device is given a pointer to the corresponding
> APMT node.
>

This looks good to me know.

Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>

Hi Lorenzo,

Not sure if there are any other arm specific ACPI changes in the queue
for v6.2. Can you please add this too ?

--
Regards,
Sudeep