diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index ed6ed2e..550517c 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -114,19 +114,18 @@ void online_page(struct page *page) num_physpages++; } -/* - * This works only for the non-NUMA case. Later, we'll need a lookup - * to convert from real physical addresses to nid, that doesn't use - * pfn_to_nid(). - */ int __devinit add_memory(u64 start, u64 size) { - struct pglist_data *pgdata = NODE_DATA(0); + struct pglist_data *pgdata; struct zone *zone; + int nid; unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; - start += KERNELBASE; + nid = hot_add_scn_to_nid(start); + pgdata = NODE_DATA(nid); + + start = __va(start); create_section_mapping(start, start + size); /* this should work for most non-highmem platforms */ @@ -436,17 +435,12 @@ void clear_user_page(void *page, unsigned long vaddr, struct page *pg) { clear_page(page); - if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) - return; /* * We shouldnt have to do this, but some versions of glibc * require it (ld.so assumes zero filled pages are icache clean) * - Anton */ - - /* avoid an atomic op if possible */ - if (test_bit(PG_arch_1, &pg->flags)) - clear_bit(PG_arch_1, &pg->flags); + flush_dcache_page(pg); } EXPORT_SYMBOL(clear_user_page); @@ -470,12 +464,7 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, return; #endif - if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) - return; - - /* avoid an atomic op if possible */ - if (test_bit(PG_arch_1, &pg->flags)) - clear_bit(PG_arch_1, &pg->flags); + flush_dcache_page(pg); } void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, |