On Fri, Oct 06, 2006 at 02:33:43PM +0200, Karl-Johan Karlsson wrote: > 1. What about the CPU feature test macros in > include/asm-mips/cpu-features.h? They claim > /* > * SMP assumption: Options of CPU 0 are a superset of all processors. > * This is true for all known MIPS systems. > */ > but is that really true, even on a mixed R12k/R10k system? To the degree that is actually matters, yes. For cache managment on Origins the size of the S-cache doesn't matter, that is it is not relevant if scache_size(cpu 0) > or < scache_size(cpu 1). It gets a little hairy for stuff like performance counters where the R10000 supports a different set of events than its successors; that is not something oprofile can deal with ... Ralf
