memblock: replace free_bootmem_late with memblock_free_late
[linux-2.6-block.git] / include / linux / bootmem.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
4  */
5 #ifndef _LINUX_BOOTMEM_H
6 #define _LINUX_BOOTMEM_H
7
8 #include <linux/mmzone.h>
9 #include <linux/mm_types.h>
10 #include <asm/dma.h>
11 #include <asm/processor.h>
12
13 /*
14  *  simple boot-time physical memory area allocator.
15  */
16
17 extern unsigned long max_low_pfn;
18 extern unsigned long min_low_pfn;
19
20 /*
21  * highest page
22  */
23 extern unsigned long max_pfn;
24 /*
25  * highest possible page
26  */
27 extern unsigned long long max_possible_pfn;
28
29 extern unsigned long free_all_bootmem(void);
30 extern void reset_node_managed_pages(pg_data_t *pgdat);
31 extern void reset_all_zones_managed_pages(void);
32
33 /* We are using top down, so it is safe to use 0 here */
34 #define BOOTMEM_LOW_LIMIT 0
35
36 #ifndef ARCH_LOW_ADDRESS_LIMIT
37 #define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
38 #endif
39
40 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
41 #define BOOTMEM_ALLOC_ACCESSIBLE        0
42 #define BOOTMEM_ALLOC_ANYWHERE          (~(phys_addr_t)0)
43
44 /* FIXME: Move to memblock.h at a point where we remove nobootmem.c */
45 void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
46                                       phys_addr_t min_addr,
47                                       phys_addr_t max_addr, int nid);
48 void *memblock_alloc_try_nid_nopanic(phys_addr_t size,
49                 phys_addr_t align, phys_addr_t min_addr,
50                 phys_addr_t max_addr, int nid);
51 void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
52                 phys_addr_t min_addr, phys_addr_t max_addr, int nid);
53 void __memblock_free_early(phys_addr_t base, phys_addr_t size);
54 void __memblock_free_late(phys_addr_t base, phys_addr_t size);
55
56 static inline void * __init memblock_alloc(
57                                         phys_addr_t size,  phys_addr_t align)
58 {
59         return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
60                                             BOOTMEM_ALLOC_ACCESSIBLE,
61                                             NUMA_NO_NODE);
62 }
63
64 static inline void * __init memblock_alloc_raw(
65                                         phys_addr_t size,  phys_addr_t align)
66 {
67         return memblock_alloc_try_nid_raw(size, align, BOOTMEM_LOW_LIMIT,
68                                             BOOTMEM_ALLOC_ACCESSIBLE,
69                                             NUMA_NO_NODE);
70 }
71
72 static inline void * __init memblock_alloc_from(
73                 phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
74 {
75         return memblock_alloc_try_nid(size, align, min_addr,
76                                       BOOTMEM_ALLOC_ACCESSIBLE,
77                                       NUMA_NO_NODE);
78 }
79
80 static inline void * __init memblock_alloc_nopanic(
81                                         phys_addr_t size, phys_addr_t align)
82 {
83         return memblock_alloc_try_nid_nopanic(size, align,
84                                                     BOOTMEM_LOW_LIMIT,
85                                                     BOOTMEM_ALLOC_ACCESSIBLE,
86                                                     NUMA_NO_NODE);
87 }
88
89 static inline void * __init memblock_alloc_low(
90                                         phys_addr_t size, phys_addr_t align)
91 {
92         return memblock_alloc_try_nid(size, align,
93                                                    BOOTMEM_LOW_LIMIT,
94                                                    ARCH_LOW_ADDRESS_LIMIT,
95                                                    NUMA_NO_NODE);
96 }
97 static inline void * __init memblock_alloc_low_nopanic(
98                                         phys_addr_t size, phys_addr_t align)
99 {
100         return memblock_alloc_try_nid_nopanic(size, align,
101                                                    BOOTMEM_LOW_LIMIT,
102                                                    ARCH_LOW_ADDRESS_LIMIT,
103                                                    NUMA_NO_NODE);
104 }
105
106 static inline void * __init memblock_alloc_from_nopanic(
107                 phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
108 {
109         return memblock_alloc_try_nid_nopanic(size, align, min_addr,
110                                                     BOOTMEM_ALLOC_ACCESSIBLE,
111                                                     NUMA_NO_NODE);
112 }
113
114 static inline void * __init memblock_alloc_node(
115                 phys_addr_t size, phys_addr_t align, int nid)
116 {
117         return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
118                                             BOOTMEM_ALLOC_ACCESSIBLE, nid);
119 }
120
121 static inline void * __init memblock_alloc_node_nopanic(
122                                                 phys_addr_t size, int nid)
123 {
124         return memblock_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
125                                                     BOOTMEM_ALLOC_ACCESSIBLE,
126                                                     nid);
127 }
128
129 static inline void __init memblock_free_early(
130                                         phys_addr_t base, phys_addr_t size)
131 {
132         __memblock_free_early(base, size);
133 }
134
135 static inline void __init memblock_free_early_nid(
136                                 phys_addr_t base, phys_addr_t size, int nid)
137 {
138         __memblock_free_early(base, size);
139 }
140
141 static inline void __init memblock_free_late(
142                                         phys_addr_t base, phys_addr_t size)
143 {
144         __memblock_free_late(base, size);
145 }
146
147 extern void *alloc_large_system_hash(const char *tablename,
148                                      unsigned long bucketsize,
149                                      unsigned long numentries,
150                                      int scale,
151                                      int flags,
152                                      unsigned int *_hash_shift,
153                                      unsigned int *_hash_mask,
154                                      unsigned long low_limit,
155                                      unsigned long high_limit);
156
157 #define HASH_EARLY      0x00000001      /* Allocating during early boot? */
158 #define HASH_SMALL      0x00000002      /* sub-page allocation allowed, min
159                                          * shift passed via *_hash_shift */
160 #define HASH_ZERO       0x00000004      /* Zero allocated hash table */
161
162 /* Only NUMA needs hash distribution. 64bit NUMA architectures have
163  * sufficient vmalloc space.
164  */
165 #ifdef CONFIG_NUMA
166 #define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
167 extern int hashdist;            /* Distribute hashes across NUMA nodes? */
168 #else
169 #define hashdist (0)
170 #endif
171
172
173 #endif /* _LINUX_BOOTMEM_H */