#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>
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? */
}
/*
* 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;
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 */
#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 */
#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 */