Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-microblaze.git] / arch / x86 / include / asm / pgtable_types.h

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index a471cad..4432ab7 100644 (file)
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -22,10 +22,11 @@
 #define _PAGE_BIT_PAT_LARGE    12      /* On 2MB or 1GB pages */
 #define _PAGE_BIT_SPECIAL      _PAGE_BIT_SOFTW1
 #define _PAGE_BIT_CPA_TEST     _PAGE_BIT_SOFTW1
-#define _PAGE_BIT_SPLITTING    _PAGE_BIT_SOFTW2 /* only valid on a PSE pmd */
 #define _PAGE_BIT_HIDDEN       _PAGE_BIT_SOFTW3 /* hidden by kmemcheck */
 #define _PAGE_BIT_SOFT_DIRTY   _PAGE_BIT_SOFTW3 /* software dirty tracking */
-#define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */
+#define _PAGE_BIT_SOFTW4       58      /* available for programmer */
+#define _PAGE_BIT_DEVMAP               _PAGE_BIT_SOFTW4
+#define _PAGE_BIT_NX           63      /* No execute: only valid after cpuid check */
 
 /* If _PAGE_BIT_PRESENT is clear, we use these: */
 /* - if the user mapped it with PROT_NONE; pte_present gives true */
@@ -46,7 +47,6 @@
 #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
 #define _PAGE_SPECIAL  (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
 #define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
-#define _PAGE_SPLITTING        (_AT(pteval_t, 1) << _PAGE_BIT_SPLITTING)
 #define __HAVE_ARCH_PTE_SPECIAL
 
 #ifdef CONFIG_KMEMCHECK
@@ -85,8 +85,11 @@
 
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 #define _PAGE_NX       (_AT(pteval_t, 1) << _PAGE_BIT_NX)
+#define _PAGE_DEVMAP   (_AT(u64, 1) << _PAGE_BIT_DEVMAP)
+#define __HAVE_ARCH_PTE_DEVMAP
 #else
 #define _PAGE_NX       (_AT(pteval_t, 0))
+#define _PAGE_DEVMAP   (_AT(pteval_t, 0))
 #endif
 
 #define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
@@ -363,20 +366,18 @@ static inline enum page_cache_mode pgprot2cachemode(pgprot_t pgprot)
 }
 static inline pgprot_t pgprot_4k_2_large(pgprot_t pgprot)
 {
+       pgprotval_t val = pgprot_val(pgprot);
        pgprot_t new;
-       unsigned long val;
 
-       val = pgprot_val(pgprot);
        pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
                ((val & _PAGE_PAT) << (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
        return new;
 }
 static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot)
 {
+       pgprotval_t val = pgprot_val(pgprot);
        pgprot_t new;
-       unsigned long val;
 
-       val = pgprot_val(pgprot);
        pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
                          ((val & _PAGE_PAT_LARGE) >>
                           (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));