xref: /OK3568_Linux_fs/kernel/arch/nds32/include/asm/fixmap.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun // Copyright (C) 2005-2017 Andes Technology Corporation
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #ifndef __ASM_NDS32_FIXMAP_H
5*4882a593Smuzhiyun #define __ASM_NDS32_FIXMAP_H
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #ifdef CONFIG_HIGHMEM
8*4882a593Smuzhiyun #include <linux/threads.h>
9*4882a593Smuzhiyun #include <asm/kmap_types.h>
10*4882a593Smuzhiyun #endif
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun enum fixed_addresses {
13*4882a593Smuzhiyun 	FIX_HOLE,
14*4882a593Smuzhiyun 	FIX_KMAP_RESERVED,
15*4882a593Smuzhiyun 	FIX_KMAP_BEGIN,
16*4882a593Smuzhiyun #ifdef CONFIG_HIGHMEM
17*4882a593Smuzhiyun 	FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS),
18*4882a593Smuzhiyun #endif
19*4882a593Smuzhiyun 	FIX_EARLYCON_MEM_BASE,
20*4882a593Smuzhiyun 	__end_of_fixed_addresses
21*4882a593Smuzhiyun };
22*4882a593Smuzhiyun #define FIXADDR_TOP             ((unsigned long) (-(16 * PAGE_SIZE)))
23*4882a593Smuzhiyun #define FIXADDR_SIZE		((__end_of_fixed_addresses) << PAGE_SHIFT)
24*4882a593Smuzhiyun #define FIXADDR_START		(FIXADDR_TOP - FIXADDR_SIZE)
25*4882a593Smuzhiyun #define FIXMAP_PAGE_IO		__pgprot(PAGE_DEVICE)
26*4882a593Smuzhiyun void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun #include <asm-generic/fixmap.h>
29*4882a593Smuzhiyun #endif /* __ASM_NDS32_FIXMAP_H */
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