On Sat, 2013-08-17 at 15:55 +0100, Måns Rullgård wrote:
FengHua fenghua@phytium.com.cn writes:
FengHua fenghua@phytium.com.cn writes:
hi tom, hi albert, yes, it's right. the u-boot could be more uniformly and maintainable if merging armv8 to arm architecture. I will try to migrate arm64 to armv8 subarchitecture of arm. do you have any other advice?
Why? The architectures are vastly different, arm64 (aarch64) being only loosely inspired by the 32-bit arm. It is not like with x86/amd64 where a lot of code can be shared.
Of course, with a seperated architecture the arm64 code will be clear and simple. when it merged with arm a few file should be duplicated with the name "_v8" appended and many macro switch should be added. but most of the code will be in armv8 directory which paralleled with armv7. it seems that this implementation are more nice.
ARMv8 defines both a 32-bit (aarch32) and a 64-bit (aarch64) instruction set. The naming you are suggesting would be misleading.
Yes, the asm files should be suffixed with "64" rather than "_v8".
-Scott