#define PTRS_PER_PGD (1UL << PGDIR_BITS)
/* Kernel has a separate 44bit address space. */
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) __builtin_trap()
#define pmd_ERROR(e) __builtin_trap()
unsigned long pfn,
unsigned long size, pgprot_t prot);
+/* Clear virtual and physical cachability, set side-effect bit. */
+#define pgprot_noncached(prot) \
+ (__pgprot((pgprot_val(prot) & ~(_PAGE_CP | _PAGE_CV)) | \
+ _PAGE_E))
+
/*
* For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
* its high 4 bits. These macros/functions put it there or get it from there.