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authorIngo Molnar <mingo@elte.hu>2009-02-11 09:22:04 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-11 09:22:04 +0100
commit95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c (patch)
treeaa2aac22a5b329b778a6771a87bbf1945ad49bbd /arch/m68k/include/asm/page_no.h
parentd278c48435625cb6b7edcf6a547620768b175709 (diff)
parent8e4921515c1a379539607eb443d51c30f4f7f338 (diff)
downloadop-kernel-dev-95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c.zip
op-kernel-dev-95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c.tar.gz
Merge commit 'v2.6.29-rc4' into perfcounters/core
Conflicts: arch/x86/kernel/setup_percpu.c arch/x86/mm/fault.c drivers/acpi/processor_idle.c kernel/irq/handle.c
Diffstat (limited to 'arch/m68k/include/asm/page_no.h')
-rw-r--r--arch/m68k/include/asm/page_no.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
new file mode 100644
index 0000000..3a1ede4
--- /dev/null
+++ b/arch/m68k/include/asm/page_no.h
@@ -0,0 +1,77 @@
+#ifndef _M68KNOMMU_PAGE_H
+#define _M68KNOMMU_PAGE_H
+
+/* PAGE_SHIFT determines the page size */
+
+#define PAGE_SHIFT (12)
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#include <asm/setup.h>
+
+#ifndef __ASSEMBLY__
+
+#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
+#define free_user_page(page, addr) free_page(addr)
+
+#define clear_page(page) memset((page), 0, PAGE_SIZE)
+#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
+
+#define clear_user_page(page, vaddr, pg) clear_page(page)
+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
+
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+ alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+/*
+ * 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) } )
+
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+
+#endif /* !__ASSEMBLY__ */
+
+#include <asm/page_offset.h>
+
+#define PAGE_OFFSET (PAGE_OFFSET_RAW)
+
+#ifndef __ASSEMBLY__
+
+#define __pa(vaddr) virt_to_phys((void *)(vaddr))
+#define __va(paddr) phys_to_virt((unsigned long)(paddr))
+
+#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+
+#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
+#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
+
+#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn))
+#define page_to_pfn(page) virt_to_pfn(page_to_virt(page))
+#define pfn_valid(pfn) ((pfn) < max_mapnr)
+
+#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
+ ((void *)(kaddr) < (void *)memory_end))
+
+#endif /* __ASSEMBLY__ */
+
+#include <asm-generic/page.h>
+
+#endif /* _M68KNOMMU_PAGE_H */
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