[PATCH] mm: use symbolic names instead of indices for zone initialisation

[sfrench/cifs-2.6.git] / arch / ppc / mm / init.c

diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c
index cb1c294fb932678a9d32429b5022582de7518f8b..c374e53ae03a0971654d26b5670f0e670b65cf40 100644 (file)
--- a/arch/ppc/mm/init.c
+++ b/arch/ppc/mm/init.c
@@ -18,7 +18,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -359,8 +358,8 @@ void __init do_init_bootmem(void)
  */
 void __init paging_init(void)
 {
-       unsigned long zones_size[MAX_NR_ZONES], i;
-
+       unsigned long start_pfn, end_pfn;
+       unsigned long max_zone_pfns[MAX_NR_ZONES];
 #ifdef CONFIG_HIGHMEM
        map_page(PKMAP_BASE, 0, 0);     /* XXX gross */
        pkmap_page_table = pte_offset_kernel(pmd_offset(pgd_offset_k
@@ -370,19 +369,19 @@ void __init paging_init(void)
                        (KMAP_FIX_BEGIN), KMAP_FIX_BEGIN), KMAP_FIX_BEGIN);
        kmap_prot = PAGE_KERNEL;
 #endif /* CONFIG_HIGHMEM */
+       /* All pages are DMA-able so we put them all in the DMA zone. */
+       start_pfn = __pa(PAGE_OFFSET) >> PAGE_SHIFT;
+       end_pfn = start_pfn + (total_memory >> PAGE_SHIFT);
+       add_active_range(0, start_pfn, end_pfn);
 
-       /*
-        * All pages are DMA-able so we put them all in the DMA zone.
-        */
-       zones_size[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
-       for (i = 1; i < MAX_NR_ZONES; i++)
-               zones_size[i] = 0;
-
+       memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 #ifdef CONFIG_HIGHMEM
-       zones_size[ZONE_HIGHMEM] = (total_memory - total_lowmem) >> PAGE_SHIFT;
+       max_zone_pfns[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
+       max_zone_pfns[ZONE_HIGHMEM] = total_memory >> PAGE_SHIFT;
+#else
+       max_zone_pfns[ZONE_DMA] = total_memory >> PAGE_SHIFT;
 #endif /* CONFIG_HIGHMEM */
-
-       free_area_init(zones_size);
+       free_area_init_nodes(max_zone_pfns);
 }
 
 void __init mem_init(void)
@@ -412,14 +411,6 @@ void __init mem_init(void)
        }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-#ifdef CONFIG_PPC_OF
-       /* mark the RTAS pages as reserved */
-       if ( rtas_data )
-               for (addr = (ulong)__va(rtas_data);
-                    addr < PAGE_ALIGN((ulong)__va(rtas_data)+rtas_size) ;
-                    addr += PAGE_SIZE)
-                       SetPageReserved(virt_to_page(addr));
-#endif
        for (addr = PAGE_OFFSET; addr < (unsigned long)high_memory;
             addr += PAGE_SIZE) {
                if (!PageReserved(virt_to_page(addr)))
@@ -494,11 +485,6 @@ set_phys_avail(unsigned long total_memory)
                                  initrd_end - initrd_start, 1);
        }
 #endif /* CONFIG_BLK_DEV_INITRD */
-#ifdef CONFIG_PPC_OF
-       /* remove the RTAS pages from the available memory */
-       if (rtas_data)
-               mem_pieces_remove(&phys_avail, rtas_data, rtas_size, 1);
-#endif
 }
 
 /* Mark some memory as reserved by removing it from phys_avail. */
@@ -596,7 +582,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
                mm = (address < TASK_SIZE)? vma->vm_mm: &init_mm;
                pmd = pmd_offset(pgd_offset(mm, address), address);
                if (!pmd_none(*pmd))
-                       add_hash_page(mm->context, address, pmd_val(*pmd));
+                       add_hash_page(mm->context.id, address, pmd_val(*pmd));
        }
 #endif
 }