xref: /linux/arch/csky/include/asm/fixmap.h (revision 48dea9a700c8728cc31a1dd44588b97578de86ee)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
3 
4 #ifndef __ASM_CSKY_FIXMAP_H
5 #define __ASM_CSKY_FIXMAP_H
6 
7 #include <asm/page.h>
8 #include <asm/memory.h>
9 #ifdef CONFIG_HIGHMEM
10 #include <linux/threads.h>
11 #include <asm/kmap_types.h>
12 #endif
13 
14 enum fixed_addresses {
15 #ifdef CONFIG_HAVE_TCM
16 	FIX_TCM = TCM_NR_PAGES,
17 #endif
18 #ifdef CONFIG_HIGHMEM
19 	FIX_KMAP_BEGIN,
20 	FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS) - 1,
21 #endif
22 	__end_of_fixed_addresses
23 };
24 
25 #define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)
26 #define FIXADDR_START	(FIXADDR_TOP - FIXADDR_SIZE)
27 
28 #include <asm-generic/fixmap.h>
29 
30 extern void fixrange_init(unsigned long start, unsigned long end,
31 	pgd_t *pgd_base);
32 extern void __init fixaddr_init(void);
33 
34 #endif /* __ASM_CSKY_FIXMAP_H */
35