X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-parisc%2Fpage.h;fp=include%2Fasm-parisc%2Fpage.h;h=4a6752b0afede39755303a1fa6dca51cdf96e9b5;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=fcae97e6a8ccf067558af93e5af13facddb961c0;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git

diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index fcae97e6a..4a6752b0a 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -1,21 +1,13 @@
 #ifndef _PARISC_PAGE_H
 #define _PARISC_PAGE_H
 
-#ifdef __KERNEL__
-
-#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-# define PAGE_SHIFT	12
-#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
-# define PAGE_SHIFT	14
-#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
-# define PAGE_SHIFT	16
-#else
-# error "unknown default kernel page size"
-#endif
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT	12
 #define PAGE_SIZE	(1UL << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
-
+#ifdef __KERNEL__
+#include <linux/config.h>
 #ifndef __ASSEMBLY__
 
 #include <asm/types.h>
@@ -34,7 +26,7 @@ static inline void
 copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
 {
 	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page_asm(vto);
+	flush_kernel_dcache_page(vto);
 	/* XXX: ppc flushes icache too, should we? */
 }
 
@@ -48,19 +40,14 @@ clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 /*
  * These are used to make use of C type-checking..
  */
-#define STRICT_MM_TYPECHECKS
-#ifdef STRICT_MM_TYPECHECKS
-typedef struct { unsigned long pte;
-#if !defined(CONFIG_64BIT)
-                 unsigned long future_flags;
- /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
-	 to 2, but then strangely the identical 32bit kernel boots on a
-	 c3000(pa20), but not any longer on a 715(pa11).
-	 Still investigating... HelgeD.
-  */
+#ifdef __LP64__
+typedef struct { unsigned long pte; } pte_t;
+#else
+typedef struct {
+	unsigned long pte;
+	unsigned long flags;
+} pte_t;
 #endif
-} pte_t; /* either 32 or 64bit */
-
 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
 typedef struct { __u32 pmd; } pmd_t;
@@ -68,44 +55,25 @@ typedef struct { __u32 pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
+#ifdef __LP64__
+#define pte_flags(x)	(*(__u32 *)&((x).pte))
+#else
+#define pte_flags(x)	((x).flags)
+#endif
+
 /* These do not work lvalues, so make sure we don't use them as such. */
 #define pmd_val(x)	((x).pmd + 0)
 #define pgd_val(x)	((x).pgd + 0)
 #define pgprot_val(x)	((x).pgprot)
 
+#define __pmd_val_set(x,n) (x).pmd = (n)
+#define __pgd_val_set(x,n) (x).pgd = (n)
+
 #define __pte(x)	((pte_t) { (x) } )
 #define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
-#define __pmd_val_set(x,n) (x).pmd = (n)
-#define __pgd_val_set(x,n) (x).pgd = (n)
-
-#else
-/*
- * .. while these make it easier on the compiler
- */
-typedef unsigned long pte_t;
-typedef         __u32 pmd_t;
-typedef         __u32 pgd_t;
-typedef unsigned long pgprot_t;
-
-#define pte_val(x)      (x)
-#define pmd_val(x)      (x)
-#define pgd_val(x)      (x)
-#define pgprot_val(x)   (x)
-
-#define __pte(x)        (x)
-#define __pmd(x)	(x)
-#define __pgd(x)        (x)
-#define __pgprot(x)     (x)
-
-#define __pmd_val_set(x,n) (x) = (n)
-#define __pgd_val_set(x,n) (x) = (n)
-
-#endif /* STRICT_MM_TYPECHECKS */
-
-
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
@@ -162,6 +130,8 @@ extern int npmem_ranges;
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
 #ifndef CONFIG_DISCONTIGMEM
+#define pfn_to_page(pfn)	(mem_map + (pfn))
+#define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
 #endif /* CONFIG_DISCONTIGMEM */
 
@@ -180,11 +150,8 @@ extern int npmem_ranges;
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#include <asm-generic/memory_model.h>
-#include <asm-generic/page.h>
-
-#define devmem_is_allowed(x) 1
-
 #endif /* __KERNEL__ */
 
+#include <asm-generic/page.h>
+
 #endif /* _PARISC_PAGE_H */