1 /* SPDX-License-Identifier: GPL-2.0-only */ 1
2 /*
3 * Copyright (C) 2015 Synopsys, Inc. (www.syno
4 */
5
6 #ifndef _ASM_HIGHMEM_H
7 #define _ASM_HIGHMEM_H
8
9 #ifdef CONFIG_HIGHMEM
10
11 #include <uapi/asm/page.h>
12 #include <asm/kmap_size.h>
13
14 #define FIXMAP_SIZE PGDIR_SIZE
15 #define PKMAP_SIZE PGDIR_SIZE
16
17 /* start after vmalloc area */
18 #define FIXMAP_BASE (PAGE_OFFSET -
19
20 #define FIX_KMAP_SLOTS (KM_MAX_IDX *
21 #define FIX_KMAP_BEGIN (0UL)
22 #define FIX_KMAP_END ((FIX_KMAP_BEG
23
24 #define FIXADDR_TOP (FIXMAP_BASE +
25
26 /*
27 * This should be converted to the asm-generic
28 * is needlessly different from all other arch
29 */
30 #define __fix_to_virt(x) (FIXADDR_TOP -
31 #define __virt_to_fix(x) (((FIXADDR_TOP
32
33 /* start after fixmap area */
34 #define PKMAP_BASE (FIXMAP_BASE +
35 #define LAST_PKMAP (PKMAP_SIZE >>
36 #define LAST_PKMAP_MASK (LAST_PKMAP -
37 #define PKMAP_ADDR(nr) (PKMAP_BASE +
38 #define PKMAP_NR(virt) (((virt) - PKM
39
40 #include <asm/cacheflush.h>
41
42 extern void kmap_init(void);
43
44 #define arch_kmap_local_post_unmap(vaddr)
45 local_flush_tlb_kernel_range(vaddr, va
46
47 static inline void flush_cache_kmaps(void)
48 {
49 flush_cache_all();
50 }
51 #endif
52
53 #endif
54
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.