Christophe Leroy's on August 28, 2019 7:06 pm: > > > Le 27/08/2019 à 15:55, Nicholas Piggin a écrit : >> Accounted for some feedback. >> >> Nicholas Piggin (4): >> powerpc: convert to copy_thread_tls >> powerpc/64: remove support for kernel-mode syscalls >> powerpc/64: system call remove non-volatile GPR save optimisation >> powerpc/64: system call implement the bulk of the logic in C > > Would it be possible to split in the following parts: > > 1/ Implement in C whatever can be implemented without removing > non-volatile GPR save optimisation > 2/ Remove non-volatile GPR save optimisation > 3/ Implement in C everything else
Hmm. I'll have a look but I would rather not go back and add the intermediate state I was hoping to avoid. I'll think about it and if it's not too difficult I will try to add something. I have an idea. With your nvregs performance test on ppc32, are you doing the nvgpr restore? The fast path should be able to avoid that. Thanks, Nick
