Remove obsolete #include <linux/config.h>
[linux-2.6.git] / arch / xtensa / mm / pgtable.c
1 /*
2  * arch/xtensa/mm/fault.c
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 2001 - 2005 Tensilica Inc.
9  *
10  * Chris Zankel <chris@zankel.net>
11  */
12
13 #if (DCACHE_SIZE > PAGE_SIZE)
14
15 pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
16 {
17         pte_t *pte = NULL, *p;
18         int color = ADDR_COLOR(address);
19         int i;
20
21         p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER);
22
23         if (likely(p)) {
24                 split_page(virt_to_page(p), COLOR_ORDER);
25
26                 for (i = 0; i < COLOR_SIZE; i++) {
27                         if (ADDR_COLOR(p) == color)
28                                 pte = p;
29                         else
30                                 free_page(p);
31                         p += PTRS_PER_PTE;
32                 }
33                 clear_page(pte);
34         }
35         return pte;
36 }
37
38 #ifdef PROFILING
39
40 int mask;
41 int hit;
42 int flush;
43
44 #endif
45
46 struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address)
47 {
48         struct page *page = NULL, *p;
49         int color = ADDR_COLOR(address);
50
51         p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
52
53         if (likely(p)) {
54                 split_page(p, COLOR_ORDER);
55
56                 for (i = 0; i < PAGE_ORDER; i++) {
57                         if (PADDR_COLOR(page_address(p)) == color)
58                                 page = p;
59                         else
60                                 __free_page(p);
61                         p++;
62                 }
63                 clear_highpage(page);
64         }
65
66         return page;
67 }
68
69 #endif
70
71
72