1 files changed, 42 insertions, 16 deletions

diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
index 6b9130bfb6c..ebba11e270f 100644
--- a/arch/cris/mm/ioremap.c
+++ b/arch/cris/mm/ioremap.c
@@ -14,9 +14,10 @@
 #include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+#include <asm/arch/memmap.h>
 
 extern inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
-        unsigned long phys_addr, unsigned long flags)
+        unsigned long phys_addr, pgprot_t prot)
 {
         unsigned long end;
 
@@ -31,9 +32,7 @@ extern inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned l
                         printk("remap_area_pte: page already exists\n");
                         BUG();
                 }
-                set_pte(pte, mk_pte_phys(phys_addr, __pgprot(_PAGE_PRESENT | __READABLE | 
-                                                             __WRITEABLE | _PAGE_GLOBAL |
-                                                             _PAGE_KERNEL | flags)));
+                set_pte(pte, mk_pte_phys(phys_addr, prot));
                 address += PAGE_SIZE;
                 phys_addr += PAGE_SIZE;
                 pte++;
@@ -41,7 +40,7 @@ extern inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned l
 }
 
 static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
-        unsigned long phys_addr, unsigned long flags)
+        unsigned long phys_addr, pgprot_t prot)
 {
         unsigned long end;
 
@@ -56,7 +55,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
                 pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
                 if (!pte)
                         return -ENOMEM;
-                remap_area_pte(pte, address, end - address, address + phys_addr, flags);
+                remap_area_pte(pte, address, end - address, address + phys_addr, prot);
                 address = (address + PMD_SIZE) & PMD_MASK;
                 pmd++;
         } while (address && (address < end));
@@ -64,7 +63,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 }
 
 static int remap_area_pages(unsigned long address, unsigned long phys_addr,
-                                 unsigned long size, unsigned long flags)
+                                 unsigned long size, pgprot_t prot)
 {
         int error;
         pgd_t * dir;
@@ -77,13 +76,19 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
                 BUG();
         spin_lock(&init_mm.page_table_lock);
         do {
+                pud_t *pud;
                 pmd_t *pmd;
-                pmd = pmd_alloc(&init_mm, dir, address);
+
                 error = -ENOMEM;
+                pud = pud_alloc(&init_mm, dir, address);
+                if (!pud)
+                        break;
+                pmd = pmd_alloc(&init_mm, pud, address);
+
                 if (!pmd)
                         break;
                 if (remap_area_pmd(pmd, address, end - address,
-                                   phys_addr + address, flags))
+                                   phys_addr + address, prot))
                         break;
                 error = 0;
                 address = (address + PGDIR_SIZE) & PGDIR_MASK;
@@ -107,9 +112,9 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgprot_t prot)
 {
-        void * addr;
+        void __iomem * addr;
         struct vm_struct * area;
         unsigned long offset, last_addr;
 
@@ -131,15 +136,36 @@ void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flag
         area = get_vm_area(size, VM_IOREMAP);
         if (!area)
                 return NULL;
-        addr = area->addr;
-        if (remap_area_pages((unsigned long) addr, phys_addr, size, flags)) {
-                vfree(addr);
+        addr = (void __iomem *)area->addr;
+        if (remap_area_pages((unsigned long) addr, phys_addr, size, prot)) {
+                vfree((void __force *)addr);
                 return NULL;
         }
-        return (void *) (offset + (char *)addr);
+        return (void __iomem *) (offset + (char __iomem *)addr);
+}
+
+void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+{
+        return __ioremap_prot(phys_addr, size,
+                              __pgprot(_PAGE_PRESENT | __READABLE |
+                                       __WRITEABLE | _PAGE_GLOBAL |
+                                       _PAGE_KERNEL | flags));
+}
+
+/**
+ * ioremap_nocache     -   map bus memory into CPU space
+ * @offset:    bus address of the memory
+ * @size:      size of the resource to map
+ *
+ * Must be freed with iounmap.
+ */
+
+void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+{
+        return __ioremap(phys_addr | MEM_NON_CACHEABLE, size, 0);
 }
 
-void iounmap(void *addr)
+void iounmap(volatile void __iomem *addr)
 {
         if (addr > high_memory)
                 return vfree((void *) (PAGE_MASK & (unsigned long) addr));