1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef _ASM_EARLY_IOREMAP_H_
3 #define _ASM_EARLY_IOREMAP_H_
4
5 #include <linux/types.h>
6
7 /*
8 * early_ioremap() and early_iounmap() are for
9 * mappings, before the real ioremap() is func
10 */
11 extern void __iomem *early_ioremap(resource_si
12 unsigned lo
13 extern void *early_memremap(resource_size_t ph
14 unsigned long size
15 extern void *early_memremap_ro(resource_size_t
16 unsigned long s
17 extern void *early_memremap_prot(resource_size
18 unsigned long
19 extern void early_iounmap(void __iomem *addr,
20 extern void early_memunmap(void *addr, unsigne
21
22 #if defined(CONFIG_GENERIC_EARLY_IOREMAP) && d
23 /* Arch-specific initialization */
24 extern void early_ioremap_init(void);
25
26 /* Generic initialization called by architectu
27 extern void early_ioremap_setup(void);
28
29 /*
30 * Called as last step in paging_init() so lib
31 * accordingly for subsequent map/unmap reques
32 */
33 extern void early_ioremap_reset(void);
34
35 /*
36 * Early copy from unmapped memory to kernel m
37 */
38 extern void copy_from_early_mem(void *dest, ph
39 unsigned long
40
41 #else
42 static inline void early_ioremap_init(void) {
43 static inline void early_ioremap_setup(void) {
44 static inline void early_ioremap_reset(void) {
45 #endif
46
47 #endif /* _ASM_EARLY_IOREMAP_H_ */
48
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