On Mon, May 03, 2021 at 10:03:59PM +0000, Vikram Sethi wrote: > Will/Catalin, perhaps you could explain your thought process on why you chose > Normal NC for ioremap_wc on the armv8 linux port instead of Device GRE or other > Device Gxx. I think a combination of: compatibility with 32-bit Arm, the need to support unaligned accesses and the potential for higher performance. Furthermore, ioremap() already gives you a Device memory type, and we're tight on MAIR space. Will