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-rw-r--r--include/linux/bootmem.h104
1 files changed, 53 insertions, 51 deletions
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index a1d9b79078ea..652470b687c9 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -28,52 +28,73 @@ extern unsigned long saved_max_pfn;
28 * memory pages (including holes) on the node. 28 * memory pages (including holes) on the node.
29 */ 29 */
30typedef struct bootmem_data { 30typedef struct bootmem_data {
31 unsigned long node_boot_start; 31 unsigned long node_min_pfn;
32 unsigned long node_low_pfn; 32 unsigned long node_low_pfn;
33 void *node_bootmem_map; 33 void *node_bootmem_map;
34 unsigned long last_offset; 34 unsigned long last_end_off;
35 unsigned long last_pos; 35 unsigned long hint_idx;
36 unsigned long last_success; /* Previous allocation point. To speed
37 * up searching */
38 struct list_head list; 36 struct list_head list;
39} bootmem_data_t; 37} bootmem_data_t;
40 38
39extern bootmem_data_t bootmem_node_data[];
40
41extern unsigned long bootmem_bootmap_pages(unsigned long); 41extern unsigned long bootmem_bootmap_pages(unsigned long);
42
43extern unsigned long init_bootmem_node(pg_data_t *pgdat,
44 unsigned long freepfn,
45 unsigned long startpfn,
46 unsigned long endpfn);
42extern unsigned long init_bootmem(unsigned long addr, unsigned long memend); 47extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
48
49extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
50extern unsigned long free_all_bootmem(void);
51
52extern void free_bootmem_node(pg_data_t *pgdat,
53 unsigned long addr,
54 unsigned long size);
43extern void free_bootmem(unsigned long addr, unsigned long size); 55extern void free_bootmem(unsigned long addr, unsigned long size);
44extern void *__alloc_bootmem(unsigned long size, 56
57/*
58 * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
59 * the architecture-specific code should honor this).
60 *
61 * If flags is 0, then the return value is always 0 (success). If
62 * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the
63 * memory already was reserved.
64 */
65#define BOOTMEM_DEFAULT 0
66#define BOOTMEM_EXCLUSIVE (1<<0)
67
68extern int reserve_bootmem_node(pg_data_t *pgdat,
69 unsigned long physaddr,
70 unsigned long size,
71 int flags);
72#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
73extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
74#endif
75
76extern void *__alloc_bootmem_nopanic(unsigned long size,
45 unsigned long align, 77 unsigned long align,
46 unsigned long goal); 78 unsigned long goal);
47extern void *__alloc_bootmem_nopanic(unsigned long size, 79extern void *__alloc_bootmem(unsigned long size,
48 unsigned long align, 80 unsigned long align,
49 unsigned long goal); 81 unsigned long goal);
50extern void *__alloc_bootmem_low(unsigned long size, 82extern void *__alloc_bootmem_low(unsigned long size,
51 unsigned long align, 83 unsigned long align,
52 unsigned long goal); 84 unsigned long goal);
85extern void *__alloc_bootmem_node(pg_data_t *pgdat,
86 unsigned long size,
87 unsigned long align,
88 unsigned long goal);
89extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
90 unsigned long size,
91 unsigned long align,
92 unsigned long goal);
53extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, 93extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
54 unsigned long size, 94 unsigned long size,
55 unsigned long align, 95 unsigned long align,
56 unsigned long goal); 96 unsigned long goal);
57extern void *__alloc_bootmem_core(struct bootmem_data *bdata,
58 unsigned long size,
59 unsigned long align,
60 unsigned long goal,
61 unsigned long limit);
62
63/*
64 * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
65 * the architecture-specific code should honor this)
66 */
67#define BOOTMEM_DEFAULT 0
68#define BOOTMEM_EXCLUSIVE (1<<0)
69
70#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE 97#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
71/*
72 * If flags is 0, then the return value is always 0 (success). If
73 * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the
74 * memory already was reserved.
75 */
76extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
77#define alloc_bootmem(x) \ 98#define alloc_bootmem(x) \
78 __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) 99 __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
79#define alloc_bootmem_low(x) \ 100#define alloc_bootmem_low(x) \
@@ -82,31 +103,6 @@ extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
82 __alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) 103 __alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
83#define alloc_bootmem_low_pages(x) \ 104#define alloc_bootmem_low_pages(x) \
84 __alloc_bootmem_low(x, PAGE_SIZE, 0) 105 __alloc_bootmem_low(x, PAGE_SIZE, 0)
85#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
86
87extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
88 int flags);
89extern unsigned long free_all_bootmem(void);
90extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
91extern void *__alloc_bootmem_node(pg_data_t *pgdat,
92 unsigned long size,
93 unsigned long align,
94 unsigned long goal);
95extern unsigned long init_bootmem_node(pg_data_t *pgdat,
96 unsigned long freepfn,
97 unsigned long startpfn,
98 unsigned long endpfn);
99extern int reserve_bootmem_node(pg_data_t *pgdat,
100 unsigned long physaddr,
101 unsigned long size,
102 int flags);
103extern void free_bootmem_node(pg_data_t *pgdat,
104 unsigned long addr,
105 unsigned long size);
106extern void *alloc_bootmem_section(unsigned long size,
107 unsigned long section_nr);
108
109#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
110#define alloc_bootmem_node(pgdat, x) \ 106#define alloc_bootmem_node(pgdat, x) \
111 __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) 107 __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
112#define alloc_bootmem_pages_node(pgdat, x) \ 108#define alloc_bootmem_pages_node(pgdat, x) \
@@ -115,6 +111,12 @@ extern void *alloc_bootmem_section(unsigned long size,
115 __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0) 111 __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
116#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ 112#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
117 113
114extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
115 int flags);
116
117extern void *alloc_bootmem_section(unsigned long size,
118 unsigned long section_nr);
119
118#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP 120#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
119extern void *alloc_remap(int nid, unsigned long size); 121extern void *alloc_remap(int nid, unsigned long size);
120#else 122#else
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-04 09:31:55 -0500