This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-powerpc / page_32.h

diff --git a/include/asm-powerpc/page_32.h b/include/asm-powerpc/page_32.h
new file mode 100644 (file)
index 0000000..2677bad
--- /dev/null
+++ b/include/asm-powerpc/page_32.h
@@ -0,0 +1,42 @@
+#ifndef _ASM_POWERPC_PAGE_32_H
+#define _ASM_POWERPC_PAGE_32_H
+#ifdef __KERNEL__
+
+#define VM_DATA_DEFAULT_FLAGS  VM_DATA_DEFAULT_FLAGS32
+
+#define PPC_MEMSTART   0
+
+#ifndef __ASSEMBLY__
+/*
+ * The basic type of a PTE - 64 bits for those CPUs with > 32 bit
+ * physical addressing.  For now this just the IBM PPC440.
+ */
+#ifdef CONFIG_PTE_64BIT
+typedef unsigned long long pte_basic_t;
+#define PTE_SHIFT      (PAGE_SHIFT - 3)        /* 512 ptes per page */
+#define PTE_FMT                "%16Lx"
+#else
+typedef unsigned long pte_basic_t;
+#define PTE_SHIFT      (PAGE_SHIFT - 2)        /* 1024 ptes per page */
+#define PTE_FMT                "%.8lx"
+#endif
+
+struct page;
+extern void clear_pages(void *page, int order);
+static inline void clear_page(void *page) { clear_pages(page, 0); }
+extern void copy_page(void *to, void *from);
+
+/* Pure 2^n version of get_order */
+extern __inline__ int get_order(unsigned long size)
+{
+       int lz;
+
+       size = (size-1) >> PAGE_SHIFT;
+       asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size));
+       return 32 - lz;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_PAGE_32_H */