Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[powerpc.git] / include / asm-mips / page.h

diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index 3d262c0..85b258e 100644 (file)
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -9,14 +9,11 @@
 #ifndef _ASM_PAGE_H
 #define _ASM_PAGE_H
 
-#include <linux/config.h>
 
 #ifdef __KERNEL__
 
 #include <spaces.h>
 
-#endif
-
 /*
  * PAGE_SHIFT determines the page size
  */
@@ -35,10 +32,10 @@
 #define PAGE_SIZE      (1UL << PAGE_SHIFT)
 #define PAGE_MASK       (~((1 << PAGE_SHIFT) - 1))
 
-
-#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
+#include <asm/cpu-features.h>
+
 extern void clear_page(void * page);
 extern void copy_page(void * to, void * from);
 
@@ -58,7 +55,7 @@ static inline void clear_user_page(void *addr, unsigned long vaddr,
        extern void (*flush_data_cache_page)(unsigned long addr);
 
        clear_page(addr);
-       if (pages_do_alias((unsigned long) addr, vaddr))
+       if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK))
                flush_data_cache_page((unsigned long)addr);
 }
 
@@ -68,7 +65,8 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
        extern void (*flush_data_cache_page)(unsigned long addr);
 
        copy_page(vto, vfrom);
-       if (pages_do_alias((unsigned long)vto, vaddr))
+       if (!cpu_has_ic_fills_f_dc ||
+           pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
                flush_data_cache_page((unsigned long)vto);
 }
 
@@ -79,15 +77,17 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
   #ifdef CONFIG_CPU_MIPS32
     typedef struct { unsigned long pte_low, pte_high; } pte_t;
     #define pte_val(x)    ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
+    #define __pte(x)      ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
   #else
      typedef struct { unsigned long long pte; } pte_t;
      #define pte_val(x)        ((x).pte)
+     #define __pte(x)  ((pte_t) { (x) } )
   #endif
 #else
 typedef struct { unsigned long pte; } pte_t;
 #define pte_val(x)     ((x).pte)
-#endif
 #define __pte(x)       ((pte_t) { (x) } )
+#endif
 
 /*
  * For 3-level pagetables we defines these ourselves, for 2-level the
@@ -139,16 +139,14 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
 
-#ifndef CONFIG_SPARSEMEM
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-#define pfn_valid(pfn)         ((pfn) < max_mapnr)
-#endif
-#endif
-
 #ifdef CONFIG_FLATMEM
 
 #define pfn_valid(pfn)         ((pfn) < max_mapnr)
 
+#elif defined(CONFIG_SPARSEMEM)
+
+/* pfn_valid is defined in linux/mmzone.h */
+
 #elif defined(CONFIG_NEED_MULTIPLE_NODES)
 
 #define pfn_valid(pfn)                                                 \
@@ -160,8 +158,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
                    : 0);                                               \
 })
 
-#else
-#error Provide a definition of pfn_valid
 #endif
 
 #define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
@@ -173,8 +169,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #define UNCAC_ADDR(addr)       ((addr) - PAGE_OFFSET + UNCAC_BASE)
 #define CAC_ADDR(addr)         ((addr) - UNCAC_BASE + PAGE_OFFSET)
 
-#endif /* defined (__KERNEL__) */
-
 #ifdef CONFIG_LIMITED_DMA
 #define WANT_PAGE_VIRTUAL
 #endif
@@ -182,4 +176,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* defined (__KERNEL__) */
+
 #endif /* _ASM_PAGE_H */