[IA64] Wrong args to memset in efi_gettimeofday()

[sfrench/cifs-2.6.git] / include / asm-ia64 / pgtable.h

diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index f923d811c421aaccf9f018c54b5cb6fb50a64236..e6204f14f6142222cc3b7b06d469ffbf5a1d4a6e 100644 (file)
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -150,7 +150,7 @@
 # ifndef __ASSEMBLY__
 
 #include <linux/sched.h>       /* for mm_struct */
-#include <asm/bitops.h>
+#include <linux/bitops.h>
 #include <asm/cacheflush.h>
 #include <asm/mmu_context.h>
 #include <asm/processor.h>
@@ -223,12 +223,6 @@ ia64_phys_addr_valid (unsigned long addr)
  * page table.
  */
 
-/*
- * On some architectures, special things need to be done when setting
- * the PTE in a page table.  Nothing special needs to be on IA-64.
- */
-#define set_pte(ptep, pteval)  (*(ptep) = (pteval))
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
 #define VMALLOC_START          (RGN_BASE(RGN_GATE) + 0x200000000UL)
 #ifdef CONFIG_VIRTUAL_MEM_MAP
@@ -236,8 +230,14 @@ ia64_phys_addr_valid (unsigned long addr)
 # define VMALLOC_END           vmalloc_end
   extern unsigned long vmalloc_end;
 #else
+#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_SPARSEMEM_VMEMMAP)
+/* SPARSEMEM_VMEMMAP uses half of vmalloc... */
+# define VMALLOC_END           (RGN_BASE(RGN_GATE) + (1UL << (4*PAGE_SHIFT - 10)))
+# define vmemmap               ((struct page *)VMALLOC_END)
+#else
 # define VMALLOC_END           (RGN_BASE(RGN_GATE) + (1UL << (4*PAGE_SHIFT - 9)))
 #endif
+#endif
 
 /* fs/proc/kcore.c */
 #define        kc_vaddr_to_offset(v) ((v) - RGN_BASE(RGN_GATE))
@@ -314,6 +314,36 @@ ia64_phys_addr_valid (unsigned long addr)
 #define pte_mkdirty(pte)       (__pte(pte_val(pte) | _PAGE_D))
 #define pte_mkhuge(pte)                (__pte(pte_val(pte)))
 
+/*
+ * Because ia64's Icache and Dcache is not coherent (on a cpu), we need to
+ * sync icache and dcache when we insert *new* executable page.
+ *  __ia64_sync_icache_dcache() check Pg_arch_1 bit and flush icache
+ * if necessary.
+ *
+ *  set_pte() is also called by the kernel, but we can expect that the kernel
+ *  flushes icache explicitly if necessary.
+ */
+#define pte_present_exec_user(pte)\
+       ((pte_val(pte) & (_PAGE_P | _PAGE_PL_MASK | _PAGE_AR_RX)) == \
+               (_PAGE_P | _PAGE_PL_3 | _PAGE_AR_RX))
+
+extern void __ia64_sync_icache_dcache(pte_t pteval);
+static inline void set_pte(pte_t *ptep, pte_t pteval)
+{
+       /* page is present && page is user  && page is executable
+        * && (page swapin or new page or page migraton
+        *      || copy_on_write with page copying.)
+        */
+       if (pte_present_exec_user(pteval) &&
+           (!pte_present(*ptep) ||
+               pte_pfn(*ptep) != pte_pfn(pteval)))
+               /* load_module() calles flush_icache_range() explicitly*/
+               __ia64_sync_icache_dcache(pteval);
+       *ptep = pteval;
+}
+
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
 /*
  * Make page protection values cacheable, uncacheable, or write-
  * combining.  Note that "protection" is really a misnomer here as the
@@ -395,22 +425,6 @@ ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t
 #endif
 }
 
-static inline int
-ptep_test_and_clear_dirty (struct vm_area_struct *vma, unsigned long addr, 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;
-       if (!pte_dirty(pte))
-               return 0;
-       set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte));
-       return 1;
-#endif
-}
-
 static inline pte_t
 ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -499,12 +513,6 @@ extern struct page *zero_page_memmap_ptr;
 #define HUGETLB_PGDIR_MASK     (~(HUGETLB_PGDIR_SIZE-1))
 #endif
 
-/*
- * IA-64 doesn't have any external MMU info: the page tables contain all the necessary
- * information.  However, we use this routine to take care of any (delayed) i-cache
- * flushing that may be necessary.
- */
-extern void lazy_mmu_prot_update (pte_t pte);
 
 #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 /*
@@ -543,8 +551,10 @@ extern void lazy_mmu_prot_update (pte_t pte);
 # define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable) \
 ({                                                                     \
        int __changed = !pte_same(*(__ptep), __entry);                  \
-       if (__changed)                                                  \
-               ptep_establish(__vma, __addr, __ptep, __entry);         \
+       if (__changed) {                                                \
+               set_pte_at((__vma)->vm_mm, (__addr), __ptep, __entry);  \
+               flush_tlb_page(__vma, __addr);                          \
+       }                                                               \
        __changed;                                                      \
 })
 #endif
@@ -588,12 +598,11 @@ extern void lazy_mmu_prot_update (pte_t pte);
 #endif
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 #define __HAVE_ARCH_PTE_SAME
 #define __HAVE_ARCH_PGD_OFFSET_GATE
-#define __HAVE_ARCH_LAZY_MMU_PROT_UPDATE
+
 
 #ifndef CONFIG_PGTABLE_4
 #include <asm-generic/pgtable-nopud.h>