Merge branch 'topic/soundcore-preclaim' into for-linus

[pandora-kernel.git] / arch / x86 / include / asm / pgtable.h

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 18ef7eb..1674807 100644 (file)
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_PGTABLE_H
 
 #include <asm/page.h>
+#include <asm/e820.h>
 
 #include <asm/pgtable_types.h>
 
@@ -269,9 +270,16 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 #define canon_pgprot(p) __pgprot(massage_pgprot(p))
 
-static inline int is_new_memtype_allowed(unsigned long flags,
-                                               unsigned long new_flags)
+static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
+                                        unsigned long flags,
+                                        unsigned long new_flags)
 {
+       /*
+        * PAT type is always WB for ISA. So no need to check.
+        */
+       if (is_ISA_range(paddr, paddr + size - 1))
+               return 1;
+
        /*
         * Certain new memtypes are not allowed with certain
         * requested memtype:
@@ -317,6 +325,11 @@ static inline int pte_present(pte_t a)
        return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE);
 }
 
+static inline int pte_hidden(pte_t pte)
+{
+       return pte_flags(pte) & _PAGE_HIDDEN;
+}
+
 static inline int pmd_present(pmd_t pmd)
 {
        return pmd_flags(pmd) & _PAGE_PRESENT;