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

[linux-2.6.git] / arch / xtensa / mm / pgtable.c

diff --git a/arch/xtensa/mm/pgtable.c b/arch/xtensa/mm/pgtable.c
new file mode 100644 (file)
index 0000000..7d28914
--- /dev/null
+++ b/arch/xtensa/mm/pgtable.c
@@ -0,0 +1,72 @@
+/*
+ * arch/xtensa/mm/fault.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ *
+ * Chris Zankel <chris@zankel.net>
+ */
+
+#if (DCACHE_SIZE > PAGE_SIZE)
+
+pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+       pte_t *pte = NULL, *p;
+       int color = ADDR_COLOR(address);
+       int i;
+
+       p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER);
+
+       if (likely(p)) {
+               split_page(virt_to_page(p), COLOR_ORDER);
+
+               for (i = 0; i < COLOR_SIZE; i++) {
+                       if (ADDR_COLOR(p) == color)
+                               pte = p;
+                       else
+                               free_page(p);
+                       p += PTRS_PER_PTE;
+               }
+               clear_page(pte);
+       }
+       return pte;
+}
+
+#ifdef PROFILING
+
+int mask;
+int hit;
+int flush;
+
+#endif
+
+struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+       struct page *page = NULL, *p;
+       int color = ADDR_COLOR(address);
+
+       p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
+
+       if (likely(p)) {
+               split_page(p, COLOR_ORDER);
+
+               for (i = 0; i < PAGE_ORDER; i++) {
+                       if (PADDR_COLOR(page_address(p)) == color)
+                               page = p;
+                       else
+                               __free_page(p);
+                       p++;
+               }
+               clear_highpage(page);
+       }
+
+       return page;
+}
+
+#endif
+
+
+