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Diffstat (limited to 'arch/powerpc/include/asm/pte-common.h')
-rw-r--r--arch/powerpc/include/asm/pte-common.h26
1 files changed, 19 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index 1ec67b043..2eeaf80d4 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -76,6 +76,16 @@
*/
#ifndef __ASSEMBLY__
extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
+
+/*
+ * Don't just check for any non zero bits in __PAGE_USER, since for book3e
+ * and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
+ * _PAGE_USER. Need to explicitly match _PAGE_BAP_UR bit in that case too.
+ */
+static inline bool pte_user(pte_t pte)
+{
+ return (pte_val(pte) & _PAGE_USER) == _PAGE_USER;
+}
#endif /* __ASSEMBLY__ */
/* Location of the PFN in the PTE. Most 32-bit platforms use the same
@@ -184,13 +194,6 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
/* Make modules code happy. We don't set RO yet */
#define PAGE_KERNEL_EXEC PAGE_KERNEL_X
-/*
- * Don't just check for any non zero bits in __PAGE_USER, since for book3e
- * and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
- * _PAGE_USER. Need to explicitly match _PAGE_BAP_UR bit in that case too.
- */
-#define pte_user(val) ((val & _PAGE_USER) == _PAGE_USER)
-
/* Advertise special mapping type for AGP */
#define PAGE_AGP (PAGE_KERNEL_NC)
#define HAVE_PAGE_AGP
@@ -198,3 +201,12 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
/* Advertise support for _PAGE_SPECIAL */
#define __HAVE_ARCH_PTE_SPECIAL
+#ifndef _PAGE_READ
+/* if not defined, we should not find _PAGE_WRITE too */
+#define _PAGE_READ 0
+#define _PAGE_WRITE _PAGE_RW
+#endif
+
+#ifndef H_PAGE_4K_PFN
+#define H_PAGE_4K_PFN 0
+#endif