#ifdef __KERNEL__
-#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
-#define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK))
+#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1)
+#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
+
+/* Cast PAGE_MASK to a signed type so that it is sign-extended if
+ virtual addresses are 32-bits but physical addresses are larger
+ (ie, 32-bit PAE). */
+#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
+
+/* PTE_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
+#define PTE_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-#define __PHYSICAL_MASK _AT(phys_addr_t, (_AC(1,ULL) << __PHYSICAL_MASK_SHIFT) - 1)
-#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
-
#ifndef __ASSEMBLY__
#include <linux/types.h>
#endif
#ifndef __ASSEMBLY__
+typedef struct { pgdval_t pgd; } pgd_t;
+typedef struct { pgprotval_t pgprot; } pgprot_t;
+
extern int page_is_ram(unsigned long pagenr);
extern int devmem_is_allowed(unsigned long pagenr);
+extern void map_devmem(unsigned long pfn, unsigned long size,
+ pgprot_t vma_prot);
+extern void unmap_devmem(unsigned long pfn, unsigned long size,
+ pgprot_t vma_prot);
extern unsigned long max_pfn_mapped;
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
-typedef struct { pgdval_t pgd; } pgd_t;
-typedef struct { pgprotval_t pgprot; } pgprot_t;
-
static inline pgd_t native_make_pgd(pgdval_t val)
{
return (pgd_t) { val };
#endif
#define pte_val(x) native_pte_val(x)
+#define pte_flags(x) native_pte_val(x)
#define __pte(x) native_make_pte(x)
#endif /* CONFIG_PARAVIRT */