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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.. > > => commit message > >> >> 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 > > At least the RSC should be visible to the OS. We don't use it (now), but > we probably will at some point (at least the DISP_RSC) if I understand > it correctly. The display RSC is a separate instance, living at a far different register base. Same with the PCIe RSC etc. Konrad