61 static int segnf_dup(struct seg *seg, struct seg *newseg);
62 static int segnf_unmap(struct seg *seg, caddr_t addr, size_t len);
63 static void segnf_free(struct seg *seg);
64 static faultcode_t segnf_nomap(void);
65 static int segnf_setprot(struct seg *seg, caddr_t addr,
66 size_t len, uint_t prot);
67 static int segnf_checkprot(struct seg *seg, caddr_t addr,
68 size_t len, uint_t prot);
69 static void segnf_badop(void);
70 static int segnf_nop(void);
71 static int segnf_getprot(struct seg *seg, caddr_t addr,
72 size_t len, uint_t *protv);
73 static u_offset_t segnf_getoffset(struct seg *seg, caddr_t addr);
74 static int segnf_gettype(struct seg *seg, caddr_t addr);
75 static int segnf_getvp(struct seg *seg, caddr_t addr, struct vnode **vpp);
76 static void segnf_dump(struct seg *seg);
77 static int segnf_pagelock(struct seg *seg, caddr_t addr, size_t len,
78 struct page ***ppp, enum lock_type type, enum seg_rw rw);
79 static int segnf_setpagesize(struct seg *seg, caddr_t addr, size_t len,
80 uint_t szc);
81 static int segnf_getmemid(struct seg *seg, caddr_t addr, memid_t *memidp);
82
83
84 struct seg_ops segnf_ops = {
85 .dup = segnf_dup,
86 .unmap = segnf_unmap,
87 .free = segnf_free,
88 .fault = (faultcode_t (*)(struct hat *, struct seg *, caddr_t,
89 size_t, enum fault_type, enum seg_rw))segnf_nomap,
90 .faulta = (faultcode_t (*)(struct seg *, caddr_t)) segnf_nomap,
91 .setprot = segnf_setprot,
92 .checkprot = segnf_checkprot,
93 .kluster = (int (*)())segnf_badop,
94 .sync = (int (*)(struct seg *, caddr_t, size_t, int, uint_t))
95 segnf_nop,
96 .incore = (size_t (*)(struct seg *, caddr_t, size_t, char *))
97 segnf_nop,
98 .lockop = (int (*)(struct seg *, caddr_t, size_t, int, int,
99 ulong_t *, size_t))segnf_nop,
100 .getprot = segnf_getprot,
101 .getoffset = segnf_getoffset,
102 .gettype = segnf_gettype,
103 .getvp = segnf_getvp,
104 .advise = (int (*)(struct seg *, caddr_t, size_t, uint_t))
105 segnf_nop,
106 .dump = segnf_dump,
107 .pagelock = segnf_pagelock,
108 .setpagesize = segnf_setpagesize,
109 .getmemid = segnf_getmemid,
110 };
111
112 /*
113 * vnode and page for the page of zeros we use for the nf mappings.
114 */
115 static kmutex_t segnf_lock;
116 static struct vnode nfvp;
117 static struct page **nfpp;
118
119 #define addr_to_vcolor(addr) \
120 (shm_alignment) ? \
121 ((int)(((uintptr_t)(addr) & (shm_alignment - 1)) >> PAGESHIFT)) : 0
122
123 /*
124 * We try to limit the number of Non-fault segments created.
125 * Non fault segments are created to optimize sparc V9 code which uses
126 * the sparc nonfaulting load ASI (ASI_PRIMARY_NOFAULT).
127 *
128 * There are several reasons why creating too many non-fault segments
129 * could cause problems.
456 */
457 /* ARGSUSED */
458 static void
459 segnf_dump(struct seg *seg)
460 {}
461
462 /*ARGSUSED*/
463 static int
464 segnf_pagelock(struct seg *seg, caddr_t addr, size_t len,
465 struct page ***ppp, enum lock_type type, enum seg_rw rw)
466 {
467 return (ENOTSUP);
468 }
469
470 /*ARGSUSED*/
471 static int
472 segnf_setpagesize(struct seg *seg, caddr_t addr, size_t len,
473 uint_t szc)
474 {
475 return (ENOTSUP);
476 }
477
478 /*ARGSUSED*/
479 static int
480 segnf_getmemid(struct seg *seg, caddr_t addr, memid_t *memidp)
481 {
482 return (ENODEV);
483 }
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61 static int segnf_dup(struct seg *seg, struct seg *newseg);
62 static int segnf_unmap(struct seg *seg, caddr_t addr, size_t len);
63 static void segnf_free(struct seg *seg);
64 static faultcode_t segnf_nomap(void);
65 static int segnf_setprot(struct seg *seg, caddr_t addr,
66 size_t len, uint_t prot);
67 static int segnf_checkprot(struct seg *seg, caddr_t addr,
68 size_t len, uint_t prot);
69 static void segnf_badop(void);
70 static int segnf_nop(void);
71 static int segnf_getprot(struct seg *seg, caddr_t addr,
72 size_t len, uint_t *protv);
73 static u_offset_t segnf_getoffset(struct seg *seg, caddr_t addr);
74 static int segnf_gettype(struct seg *seg, caddr_t addr);
75 static int segnf_getvp(struct seg *seg, caddr_t addr, struct vnode **vpp);
76 static void segnf_dump(struct seg *seg);
77 static int segnf_pagelock(struct seg *seg, caddr_t addr, size_t len,
78 struct page ***ppp, enum lock_type type, enum seg_rw rw);
79 static int segnf_setpagesize(struct seg *seg, caddr_t addr, size_t len,
80 uint_t szc);
81
82
83 struct seg_ops segnf_ops = {
84 .dup = segnf_dup,
85 .unmap = segnf_unmap,
86 .free = segnf_free,
87 .fault = (faultcode_t (*)(struct hat *, struct seg *, caddr_t,
88 size_t, enum fault_type, enum seg_rw))segnf_nomap,
89 .faulta = (faultcode_t (*)(struct seg *, caddr_t)) segnf_nomap,
90 .setprot = segnf_setprot,
91 .checkprot = segnf_checkprot,
92 .kluster = (int (*)())segnf_badop,
93 .sync = (int (*)(struct seg *, caddr_t, size_t, int, uint_t))
94 segnf_nop,
95 .incore = (size_t (*)(struct seg *, caddr_t, size_t, char *))
96 segnf_nop,
97 .lockop = (int (*)(struct seg *, caddr_t, size_t, int, int,
98 ulong_t *, size_t))segnf_nop,
99 .getprot = segnf_getprot,
100 .getoffset = segnf_getoffset,
101 .gettype = segnf_gettype,
102 .getvp = segnf_getvp,
103 .advise = (int (*)(struct seg *, caddr_t, size_t, uint_t))
104 segnf_nop,
105 .dump = segnf_dump,
106 .pagelock = segnf_pagelock,
107 .setpagesize = segnf_setpagesize,
108 };
109
110 /*
111 * vnode and page for the page of zeros we use for the nf mappings.
112 */
113 static kmutex_t segnf_lock;
114 static struct vnode nfvp;
115 static struct page **nfpp;
116
117 #define addr_to_vcolor(addr) \
118 (shm_alignment) ? \
119 ((int)(((uintptr_t)(addr) & (shm_alignment - 1)) >> PAGESHIFT)) : 0
120
121 /*
122 * We try to limit the number of Non-fault segments created.
123 * Non fault segments are created to optimize sparc V9 code which uses
124 * the sparc nonfaulting load ASI (ASI_PRIMARY_NOFAULT).
125 *
126 * There are several reasons why creating too many non-fault segments
127 * could cause problems.
454 */
455 /* ARGSUSED */
456 static void
457 segnf_dump(struct seg *seg)
458 {}
459
460 /*ARGSUSED*/
461 static int
462 segnf_pagelock(struct seg *seg, caddr_t addr, size_t len,
463 struct page ***ppp, enum lock_type type, enum seg_rw rw)
464 {
465 return (ENOTSUP);
466 }
467
468 /*ARGSUSED*/
469 static int
470 segnf_setpagesize(struct seg *seg, caddr_t addr, size_t len,
471 uint_t szc)
472 {
473 return (ENOTSUP);
474 }
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