On 30/06/16 12:10, Masahiro Yamada wrote: > Hello. > > Which memory attribute will ARM/ARM64 Linux > set to the memory region reserved by > /memreserve/ of Device Tree? > > > Normal memory non-cacheable? > Or, cacheable? > Or, not defined? > > Perhaps actual behavior depends on whether the reserved area is > located in the low-memory region? Isn't the point of memreserve that the kernel avoids mapping it at all? If a reserved region is later mapped in by a driver using dma_declare_coherent_memory(), ioremap(), memremap() or whatever else, then the attributes will vary depending on the exact method used. Robin. > > > Thanks, > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
