Hi Marek, > Subject: [PATCH] firmware: scmi: Drop > mmu_set_region_dcache_behaviour() misuse > > MMU region cache behavior configuration for SCMI/SMT mailboxes is > platform specific. Even on ARM systems, the mailbox memory may not > even be located in any cacheable MMU region and may instead reside > in some SRAM. Remove this non-generic cache behavior configuration > code from generic code path. > > It is unlikely that any platform is affected by this change if it did > configure its MMU regions correctly on start up. Platforms which might > be affected are i.MX94/95 and STM32MP. >
If the memory is mapped before running SCMI stuff, it is ok. But if memory is dynamic mapped at run time, there might be issue. I saw TI platforms has some changes to use dynamic mappings, I have not read the details, TBH. Thanks, Peng.
