On Thu, Jun 20, 2024 at 05:30:48PM +0100, Jiaxun Yang wrote: > > > 在2024年6月20日六月 下午5:06，Thomas Bogendoerfer写道： > [...] > > do you have an user manual stating that the R5k bug is fixed on this CPUs ? > > I actually investigated R5500 a little bit. > > There is no explicit document mentioned this bug is fixed on R5500, but it's not > mentioned on "VR Series 64-/32-Bit Microprocessor Programming Guide" [1] either, > while some other hardware limitations are mentioned in that guide. > > Plus EMMA platform, which was removed form the kernel, doesn't have > cpu-feature-overrides.h. This means that the platform was running with LLSC > enabled. > > So I think this CPU is not affected. found a preliminary datasheet and it supports your thinking;-) Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
