Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASMS390_SET_MEMORY_H
3#define _ASMS390_SET_MEMORY_H
4
5#include <linux/mutex.h>
6
7extern struct mutex cpa_mutex;
8
9enum {
10 _SET_MEMORY_RO_BIT,
11 _SET_MEMORY_RW_BIT,
12 _SET_MEMORY_NX_BIT,
13 _SET_MEMORY_X_BIT,
14 _SET_MEMORY_4K_BIT,
15 _SET_MEMORY_INV_BIT,
16 _SET_MEMORY_DEF_BIT,
17};
18
19#define SET_MEMORY_RO BIT(_SET_MEMORY_RO_BIT)
20#define SET_MEMORY_RW BIT(_SET_MEMORY_RW_BIT)
21#define SET_MEMORY_NX BIT(_SET_MEMORY_NX_BIT)
22#define SET_MEMORY_X BIT(_SET_MEMORY_X_BIT)
23#define SET_MEMORY_4K BIT(_SET_MEMORY_4K_BIT)
24#define SET_MEMORY_INV BIT(_SET_MEMORY_INV_BIT)
25#define SET_MEMORY_DEF BIT(_SET_MEMORY_DEF_BIT)
26
27int __set_memory(unsigned long addr, int numpages, unsigned long flags);
28
29static inline int set_memory_ro(unsigned long addr, int numpages)
30{
31 return __set_memory(addr, numpages, SET_MEMORY_RO);
32}
33
34static inline int set_memory_rw(unsigned long addr, int numpages)
35{
36 return __set_memory(addr, numpages, SET_MEMORY_RW);
37}
38
39static inline int set_memory_nx(unsigned long addr, int numpages)
40{
41 return __set_memory(addr, numpages, SET_MEMORY_NX);
42}
43
44static inline int set_memory_x(unsigned long addr, int numpages)
45{
46 return __set_memory(addr, numpages, SET_MEMORY_X);
47}
48
49#define set_memory_rox set_memory_rox
50static inline int set_memory_rox(unsigned long addr, int numpages)
51{
52 return __set_memory(addr, numpages, SET_MEMORY_RO | SET_MEMORY_X);
53}
54
55static inline int set_memory_rwnx(unsigned long addr, int numpages)
56{
57 return __set_memory(addr, numpages, SET_MEMORY_RW | SET_MEMORY_NX);
58}
59
60static inline int set_memory_4k(unsigned long addr, int numpages)
61{
62 return __set_memory(addr, numpages, SET_MEMORY_4K);
63}
64
65int set_direct_map_invalid_noflush(struct page *page);
66int set_direct_map_default_noflush(struct page *page);
67
68#endif