Re: [PATCH 01/35] dt-bindings: qcom,pdc: Tighten reg to single APSS DRV region

From: Konrad Dybcio

Date: Mon Apr 13 2026 - 04:24:21 EST


On 4/11/26 4:32 PM, Dmitry Baryshkov wrote:
> On Sat, Apr 11, 2026 at 12:10:38AM +0530, Mukesh Ojha wrote:
>> The PDC has multiple DRV regions, each sized 0x10000, where each region
>> serves a specific client in the system. Linux only needs access to the
>
> Nit: there are other OS than Linux. Would you rather point out that
> other DRV regions are to be used by ... what?

TZ, HYP, HLOS, CPUCP..

I'm wondering if we can make use of the HYP one on e.g. Glymur, to
parallelize accesses (and whether that would bring any practical
benefit).

In the RPMH architecture, each "client" has their own (GPU, AOP, DISP,
etc.). Then, each one of those clients may have an associates RSC
(Resource State Coordinator) and/or anyOf BCM ("interconnect"), VRM
("regulator"), ARC ("RPMHPD") voting interfaces

Konrad