Doing some more code trolling here; am looking at the MP parts of the TLB refill code in the mips64 tree, and I'm a bit confused. It looks to me like pgd_current[] is indexed by CP0_CONTEXT and the resulting pointer is supposed to be the base of the page tables for that particular process. This makes sense. However, I see this in mmu_context.h: #define TLBMISS_HANDLER_SETUP_PGD(pgd) \ pgd_current[smp_processor_id()] = (unsigned long)(pgd) #define TLBMISS_HANDLER_SETUP() \ set_context((unsigned long) smp_processor_id() << (23 + 3)); \ TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir) extern unsigned long pgd_current[]; so pgd_current[smp_processor_id()] is hard coded to be set to swapper_pg_dir, which, insofar as I can tell, is not a per-cpu structure. It looks to me like this will end up with pgd_current[] being an array of NR_CPUS pointers all of which point to the same pgd table. I know I must be misunderstanding this code. Any suggestions as to what I'm missing? Thanks, Justin
