CC'ing linuxppc-dev...
On 01/26/2012 08:18 AM, Seth Jennings wrote: > Hey Dave, > > So I submitted the zsmalloc patches to lkml at the beginning > of the year > > https://lkml.org/lkml/2012/1/9/389 > > I found there are two functions Nitin used in the mapping > functions that are not supported in the powerpc arch: > set_pte() and __flush_tlb_one(). > > set_pte() seems straightforward for the ppc64 case, although > I think Power does some sort of pte hashing that might convolute > it a little. > > My real question is how to achieve the function of __flush_tlb_one() > on Power. I looked in Docuemntation/cachetlb.txt and it seems like > the portable tlb flush functions are: > > void flush_tlb_all(void) > void flush_tlb_mm(struct mm_struct *mm) > void flush_tlb_range(struct vm_area_struct *vma, > unsigned long start, unsigned long end) > void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) > > Of those options, flush_tlb_page() seems the closest to what > __flush_tlb_one() does. However, we don't have a vma argument in > our context (akaik) to send to it. > > I was wondering if you have any ideas. Any help is greatly appreciated! > > -- > Seth -- Brian King Linux on Power Virtualization IBM Linux Technology Center _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
