xref: /OK3568_Linux_fs/kernel/include/asm-generic/pgtable_uffd.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun #ifndef _ASM_GENERIC_PGTABLE_UFFD_H
2*4882a593Smuzhiyun #define _ASM_GENERIC_PGTABLE_UFFD_H
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #ifndef CONFIG_HAVE_ARCH_USERFAULTFD_WP
pte_uffd_wp(pte_t pte)5*4882a593Smuzhiyun static __always_inline int pte_uffd_wp(pte_t pte)
6*4882a593Smuzhiyun {
7*4882a593Smuzhiyun 	return 0;
8*4882a593Smuzhiyun }
9*4882a593Smuzhiyun 
pmd_uffd_wp(pmd_t pmd)10*4882a593Smuzhiyun static __always_inline int pmd_uffd_wp(pmd_t pmd)
11*4882a593Smuzhiyun {
12*4882a593Smuzhiyun 	return 0;
13*4882a593Smuzhiyun }
14*4882a593Smuzhiyun 
pte_mkuffd_wp(pte_t pte)15*4882a593Smuzhiyun static __always_inline pte_t pte_mkuffd_wp(pte_t pte)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun 	return pte;
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun 
pmd_mkuffd_wp(pmd_t pmd)20*4882a593Smuzhiyun static __always_inline pmd_t pmd_mkuffd_wp(pmd_t pmd)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun 	return pmd;
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun 
pte_clear_uffd_wp(pte_t pte)25*4882a593Smuzhiyun static __always_inline pte_t pte_clear_uffd_wp(pte_t pte)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun 	return pte;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun 
pmd_clear_uffd_wp(pmd_t pmd)30*4882a593Smuzhiyun static __always_inline pmd_t pmd_clear_uffd_wp(pmd_t pmd)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun 	return pmd;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun 
pte_swp_mkuffd_wp(pte_t pte)35*4882a593Smuzhiyun static __always_inline pte_t pte_swp_mkuffd_wp(pte_t pte)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun 	return pte;
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun 
pte_swp_uffd_wp(pte_t pte)40*4882a593Smuzhiyun static __always_inline int pte_swp_uffd_wp(pte_t pte)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun 	return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun 
pte_swp_clear_uffd_wp(pte_t pte)45*4882a593Smuzhiyun static __always_inline pte_t pte_swp_clear_uffd_wp(pte_t pte)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun 	return pte;
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun 
pmd_swp_mkuffd_wp(pmd_t pmd)50*4882a593Smuzhiyun static inline pmd_t pmd_swp_mkuffd_wp(pmd_t pmd)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun 	return pmd;
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun 
pmd_swp_uffd_wp(pmd_t pmd)55*4882a593Smuzhiyun static inline int pmd_swp_uffd_wp(pmd_t pmd)
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun 	return 0;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun 
pmd_swp_clear_uffd_wp(pmd_t pmd)60*4882a593Smuzhiyun static inline pmd_t pmd_swp_clear_uffd_wp(pmd_t pmd)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun 	return pmd;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun #endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
65*4882a593Smuzhiyun 
66*4882a593Smuzhiyun #endif /* _ASM_GENERIC_PGTABLE_UFFD_H */
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