summaryrefslogtreecommitdiffstats
path: root/include/asm-m68k/page.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-m68k/page.h')
-rw-r--r--include/asm-m68k/page.h228
1 files changed, 0 insertions, 228 deletions
diff --git a/include/asm-m68k/page.h b/include/asm-m68k/page.h
deleted file mode 100644
index a34b8bad784..00000000000
--- a/include/asm-m68k/page.h
+++ /dev/null
@@ -1,228 +0,0 @@
-#ifndef _M68K_PAGE_H
-#define _M68K_PAGE_H
-
-#include <linux/const.h>
-
-/* PAGE_SHIFT determines the page size */
-#ifndef CONFIG_SUN3
-#define PAGE_SHIFT (12)
-#else
-#define PAGE_SHIFT (13)
-#endif
-#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-#include <asm/setup.h>
-
-#if PAGE_SHIFT < 13
-#define THREAD_SIZE (8192)
-#else
-#define THREAD_SIZE PAGE_SIZE
-#endif
-
-#ifndef __ASSEMBLY__
-
-#include <linux/compiler.h>
-
-#include <asm/module.h>
-
-#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
-#define free_user_page(page, addr) free_page(addr)
-
-/*
- * We don't need to check for alignment etc.
- */
-#ifdef CPU_M68040_OR_M68060_ONLY
-static inline void copy_page(void *to, void *from)
-{
- unsigned long tmp;
-
- __asm__ __volatile__("1:\t"
- ".chip 68040\n\t"
- "move16 %1@+,%0@+\n\t"
- "move16 %1@+,%0@+\n\t"
- ".chip 68k\n\t"
- "dbra %2,1b\n\t"
- : "=a" (to), "=a" (from), "=d" (tmp)
- : "0" (to), "1" (from) , "2" (PAGE_SIZE / 32 - 1)
- );
-}
-
-static inline void clear_page(void *page)
-{
- unsigned long tmp;
- unsigned long *sp = page;
-
- *sp++ = 0;
- *sp++ = 0;
- *sp++ = 0;
- *sp++ = 0;
-
- __asm__ __volatile__("1:\t"
- ".chip 68040\n\t"
- "move16 %2@+,%0@+\n\t"
- ".chip 68k\n\t"
- "subqw #8,%2\n\t"
- "subqw #8,%2\n\t"
- "dbra %1,1b\n\t"
- : "=a" (sp), "=d" (tmp)
- : "a" (page), "0" (sp),
- "1" ((PAGE_SIZE - 16) / 16 - 1));
-}
-
-#else
-#define clear_page(page) memset((page), 0, PAGE_SIZE)
-#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
-#endif
-
-#define clear_user_page(addr, vaddr, page) \
- do { clear_page(addr); \
- flush_dcache_page(page); \
- } while (0)
-#define copy_user_page(to, from, vaddr, page) \
- do { copy_page(to, from); \
- flush_dcache_page(page); \
- } while (0)
-
-/*
- * These are used to make use of C type-checking..
- */
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd[16]; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
-typedef struct page *pgtable_t;
-
-#define pte_val(x) ((x).pte)
-#define pmd_val(x) ((&x)->pmd[0])
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
-
-#define __pte(x) ((pte_t) { (x) } )
-#define __pmd(x) ((pmd_t) { (x) } )
-#define __pgd(x) ((pgd_t) { (x) } )
-#define __pgprot(x) ((pgprot_t) { (x) } )
-
-#endif /* !__ASSEMBLY__ */
-
-#include <asm/page_offset.h>
-
-#define PAGE_OFFSET (PAGE_OFFSET_RAW)
-
-#ifndef __ASSEMBLY__
-
-extern unsigned long m68k_memoffset;
-
-#ifndef CONFIG_SUN3
-
-#define WANT_PAGE_VIRTUAL
-
-static inline unsigned long ___pa(void *vaddr)
-{
- unsigned long paddr;
- asm (
- "1: addl #0,%0\n"
- m68k_fixup(%c2, 1b+2)
- : "=r" (paddr)
- : "0" (vaddr), "i" (m68k_fixup_memoffset));
- return paddr;
-}
-#define __pa(vaddr) ___pa((void *)(vaddr))
-static inline void *__va(unsigned long paddr)
-{
- void *vaddr;
- asm (
- "1: subl #0,%0\n"
- m68k_fixup(%c2, 1b+2)
- : "=r" (vaddr)
- : "0" (paddr), "i" (m68k_fixup_memoffset));
- return vaddr;
-}
-
-#else /* !CONFIG_SUN3 */
-/* This #define is a horrible hack to suppress lots of warnings. --m */
-#define __pa(x) ___pa((unsigned long)(x))
-static inline unsigned long ___pa(unsigned long x)
-{
- if(x == 0)
- return 0;
- if(x >= PAGE_OFFSET)
- return (x-PAGE_OFFSET);
- else
- return (x+0x2000000);
-}
-
-static inline void *__va(unsigned long x)
-{
- if(x == 0)
- return (void *)0;
-
- if(x < 0x2000000)
- return (void *)(x+PAGE_OFFSET);
- else
- return (void *)(x-0x2000000);
-}
-#endif /* CONFIG_SUN3 */
-
-/*
- * NOTE: virtual isn't really correct, actually it should be the offset into the
- * memory node, but we have no highmem, so that works for now.
- * TODO: implement (fast) pfn<->pgdat_idx conversion functions, this makes lots
- * of the shifts unnecessary.
- */
-#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
-
-extern int m68k_virt_to_node_shift;
-
-#ifdef CONFIG_SINGLE_MEMORY_CHUNK
-#define __virt_to_node(addr) (&pg_data_map[0])
-#else
-extern struct pglist_data *pg_data_table[];
-
-static inline __attribute_const__ int __virt_to_node_shift(void)
-{
- int shift;
-
- asm (
- "1: moveq #0,%0\n"
- m68k_fixup(%c1, 1b)
- : "=d" (shift)
- : "i" (m68k_fixup_vnode_shift));
- return shift;
-}
-
-#define __virt_to_node(addr) (pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()])
-#endif
-
-#define virt_to_page(addr) ({ \
- pfn_to_page(virt_to_pfn(addr)); \
-})
-#define page_to_virt(page) ({ \
- pfn_to_virt(page_to_pfn(page)); \
-})
-
-#define pfn_to_page(pfn) ({ \
- unsigned long __pfn = (pfn); \
- struct pglist_data *pgdat; \
- pgdat = __virt_to_node((unsigned long)pfn_to_virt(__pfn)); \
- pgdat->node_mem_map + (__pfn - pgdat->node_start_pfn); \
-})
-#define page_to_pfn(_page) ({ \
- struct page *__p = (_page); \
- struct pglist_data *pgdat; \
- pgdat = &pg_data_map[page_to_nid(__p)]; \
- ((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn; \
-})
-
-#define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
-#define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
-
-#endif /* __ASSEMBLY__ */
-
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
-#include <asm-generic/page.h>
-
-#endif /* _M68K_PAGE_H */