x86, generic: CPA add statistics about state of direct mapping v4

[linux-2.6-omap-h63xx.git] / arch / x86 / mm / init_64.c

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 819dad973b1375bc5da5a90297c5c41788d2a652..5e43838590539acb521c97c34400aa48c9252327 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -312,6 +312,8 @@ __meminit void early_iounmap(void *addr, unsigned long size)
 static unsigned long __meminit
 phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
 {
+       unsigned long pages = 0;
+
        int i = pmd_index(address);
 
        for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
@@ -328,9 +330,11 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
                if (pmd_val(*pmd))
                        continue;
 
+               pages++;
                set_pte((pte_t *)pmd,
                        pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
        }
+       update_page_count(PG_LEVEL_2M, pages);
        return address;
 }
 
@@ -350,6 +354,7 @@ phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end)
 static unsigned long __meminit
 phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
 {
+       unsigned long pages = 0;
        unsigned long last_map_addr = end;
        int i = pud_index(addr);
 
@@ -374,6 +379,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
                }
 
                if (direct_gbpages) {
+                       pages++;
                        set_pte((pte_t *)pud,
                                pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
                        last_map_addr = (addr & PUD_MASK) + PUD_SIZE;
@@ -390,6 +396,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
                unmap_low_page(pmd);
        }
        __flush_tlb_all();
+       update_page_count(PG_LEVEL_1G, pages);
 
        return last_map_addr >> PAGE_SHIFT;
 }