Merge ../linux-2.6
[linux-3.10.git] / arch / powerpc / mm / pgtable_64.c
index d1fbd3f..9008424 100644 (file)
@@ -100,7 +100,6 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
        pud_t *pudp;
        pmd_t *pmdp;
        pte_t *ptep;
-       unsigned long vsid;
 
        if (mem_init_done) {
                pgdp = pgd_offset_k(ea);
@@ -116,28 +115,15 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
                set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
                                                          __pgprot(flags)));
        } else {
-               unsigned long va, vpn, hash, hpteg;
-
                /*
                 * If the mm subsystem is not fully up, we cannot create a
                 * linux page table entry for this mapping.  Simply bolt an
                 * entry in the hardware page table.
+                *
                 */
-               vsid = get_kernel_vsid(ea);
-               va = (vsid << 28) | (ea & 0xFFFFFFF);
-               vpn = va >> PAGE_SHIFT;
-
-               hash = hpt_hash(vpn, 0);
-
-               hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
-
-               /* Panic if a pte grpup is full */
-               if (ppc_md.hpte_insert(hpteg, va, pa >> PAGE_SHIFT,
-                                      HPTE_V_BOLTED,
-                                      _PAGE_NO_CACHE|_PAGE_GUARDED|PP_RWXX)
-                   == -1) {
-                       panic("map_io_page: could not insert mapping");
-               }
+               if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags,
+                                     mmu_virtual_psize))
+                       panic("Can't map bolted IO mapping");
        }
        return 0;
 }