On Mon, 11 Jul 2011, Lorenzo Pieralisi wrote: [ ... ]
The array of pointers is there to save pgdir on idle entry, one per-cpu.If you're going through cpu_{do_}suspend/resume, the TTBRs are saved/restored anyway, what do you need to keep the virtual addresses around for ?Because I switch mm before calling suspend, which is called with a cloned pgdir. I am not sure I can avoid that.
On resume, you'll be restoring the same thread as was previously running, right ? If so, all you do there is copying current->active_mm->pgd to some other place ?
Also, if you'd be using cpu_suspend(), would there still be a need for cpu_switch_mm() before ? It'd rather be a case of possibly calling that before the MMU-off sequence / cpu_resume() ?
Or is it that you use the new pgdir to make a memory region uncacheable ? FrankH. _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
