On Wed, Oct 29, 2008 at 09:31:51AM -0700, David Daney wrote: >> The watch bit is a standard feature of the MIPS R1/R2 architecture. What >> Sandcraft did was bascially an RM7000 clone with some extensions. I'm >> still trying to track somebody who could verify the correctness of that >> code as I don't have Sandcraft docs ... >> > > R4400 and R10K have the watch registers, but they do not have mips > semantics, so are not currently usable with the watch register support. > This is why I initially was very conservative about the conditions under > which I probed watch registers. So I think it is good to try to verify > these things. All the esotheric stuff really is covered in cpu_probe_legacy. Anything else should comply with MIPS32/MIPS64. Exceptions apply. Thanks to an old advertisment leaflet I was able to find that the Sandcraft SR71000 is indeed a MIPS64 processor, so the patch was right. Ralf