X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fpgtable.h;h=8433966536e625cd1e2a803c5f87817bb48e6ac6;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=590432c084076ca5b8f48727010773c92f9d2ab1;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 590432c08..843396653 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -297,11 +297,7 @@ ia64_phys_addr_valid (unsigned long addr)
  * works bypasses the caches, but does allow for consecutive writes to
  * be combined into single (but larger) write transactions.
  */
-#ifdef CONFIG_MCKINLEY_A0_SPECIFIC
-# define pgprot_writecombine(prot)	prot
-#else
-# define pgprot_writecombine(prot)	__pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_WC)
-#endif
+#define pgprot_writecombine(prot)	__pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_WC)
 
 static inline unsigned long
 pgd_index (unsigned long address)
@@ -325,6 +321,11 @@ pgd_offset (struct mm_struct *mm, unsigned long address)
 #define pgd_offset_k(addr) \
 	(init_mm.pgd + (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)))
 
+/* Look up a pgd entry in the gate area.  On IA-64, the gate-area
+   resides in the kernel-mapped segment, hence we use pgd_offset_k()
+   here.  */
+#define pgd_offset_gate(mm, addr)	pgd_offset_k(addr)
+
 /* Find an entry in the second-level page table.. */
 #define pmd_offset(dir,addr) \
 	((pmd_t *) pgd_page(*(dir)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
@@ -346,6 +347,8 @@ static inline int
 ptep_test_and_clear_young (pte_t *ptep)
 {
 #ifdef CONFIG_SMP
+	if (!pte_young(*ptep))
+		return 0;
 	return test_and_clear_bit(_PAGE_A_BIT, ptep);
 #else
 	pte_t pte = *ptep;
@@ -360,6 +363,8 @@ static inline int
 ptep_test_and_clear_dirty (pte_t *ptep)
 {
 #ifdef CONFIG_SMP
+	if (!pte_dirty(*ptep))
+		return 0;
 	return test_and_clear_bit(_PAGE_D_BIT, ptep);
 #else
 	pte_t pte = *ptep;
@@ -552,6 +557,7 @@ do {											\
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 #define __HAVE_ARCH_PTEP_MKDIRTY
 #define __HAVE_ARCH_PTE_SAME
+#define __HAVE_ARCH_PGD_OFFSET_GATE
 #include <asm-generic/pgtable.h>
 
 #endif /* _ASM_IA64_PGTABLE_H */