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-rw-r--r--include/linux/bootmem.h173
-rw-r--r--include/linux/memblock.h151
2 files changed, 147 insertions, 177 deletions
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
deleted file mode 100644
index b58873a567b2..000000000000
--- a/include/linux/bootmem.h
+++ /dev/null
@@ -1,173 +0,0 @@
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
17extern unsigned long max_low_pfn;
18extern unsigned long min_low_pfn;
19
20/*
21 * highest page
22 */
23extern unsigned long max_pfn;
24/*
25 * highest possible page
26 */
27extern unsigned long long max_possible_pfn;
28
29extern unsigned long memblock_free_all(void);
30extern void reset_node_managed_pages(pg_data_t *pgdat);
31extern 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 */
45void *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);
48void *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);
51void *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);
53void __memblock_free_early(phys_addr_t base, phys_addr_t size);
54void __memblock_free_late(phys_addr_t base, phys_addr_t size);
55
56static 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
64static 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
72static 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
80static 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
89static 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}
97static 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
106static 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
114static 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
121static 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
129static inline void __init memblock_free_early(
130 phys_addr_t base, phys_addr_t size)
131{
132 __memblock_free_early(base, size);
133}
134
135static 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
141static inline void __init memblock_free_late(
142 phys_addr_t base, phys_addr_t size)
143{
144 __memblock_free_late(base, size);
145}
146
147extern 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)
167extern int hashdist; /* Distribute hashes across NUMA nodes? */
168#else
169#define hashdist (0)
170#endif
171
172
173#endif /* _LINUX_BOOTMEM_H */
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 9d46a7204975..1b4d85879cbe 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -15,6 +15,19 @@
15 15
16#include <linux/init.h> 16#include <linux/init.h>
17#include <linux/mm.h> 17#include <linux/mm.h>
18#include <asm/dma.h>
19
20extern unsigned long max_low_pfn;
21extern unsigned long min_low_pfn;
22
23/*
24 * highest page
25 */
26extern unsigned long max_pfn;
27/*
28 * highest possible page
29 */
30extern unsigned long long max_possible_pfn;
18 31
19#define INIT_MEMBLOCK_REGIONS 128 32#define INIT_MEMBLOCK_REGIONS 128
20#define INIT_PHYSMEM_REGIONS 4 33#define INIT_PHYSMEM_REGIONS 4
@@ -119,6 +132,10 @@ int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
119int memblock_clear_nomap(phys_addr_t base, phys_addr_t size); 132int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
120enum memblock_flags choose_memblock_flags(void); 133enum memblock_flags choose_memblock_flags(void);
121 134
135unsigned long memblock_free_all(void);
136void reset_node_managed_pages(pg_data_t *pgdat);
137void reset_all_zones_managed_pages(void);
138
122/* Low level functions */ 139/* Low level functions */
123int memblock_add_range(struct memblock_type *type, 140int memblock_add_range(struct memblock_type *type,
124 phys_addr_t base, phys_addr_t size, 141 phys_addr_t base, phys_addr_t size,
@@ -300,11 +317,116 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
300} 317}
301#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */ 318#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
302 319
320/* Flags for memblock allocation APIs */
321#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
322#define MEMBLOCK_ALLOC_ACCESSIBLE 0
323
324/* We are using top down, so it is safe to use 0 here */
325#define MEMBLOCK_LOW_LIMIT 0
326
327#ifndef ARCH_LOW_ADDRESS_LIMIT
328#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
329#endif
330
303phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid); 331phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
304phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid); 332phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
305 333
306phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align); 334phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align);
307 335
336void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
337 phys_addr_t min_addr, phys_addr_t max_addr,
338 int nid);
339void *memblock_alloc_try_nid_nopanic(phys_addr_t size, phys_addr_t align,
340 phys_addr_t min_addr, phys_addr_t max_addr,
341 int nid);
342void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
343 phys_addr_t min_addr, phys_addr_t max_addr,
344 int nid);
345
346static inline void * __init memblock_alloc(phys_addr_t size, phys_addr_t align)
347{
348 return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
349 MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
350}
351
352static inline void * __init memblock_alloc_raw(phys_addr_t size,
353 phys_addr_t align)
354{
355 return memblock_alloc_try_nid_raw(size, align, MEMBLOCK_LOW_LIMIT,
356 MEMBLOCK_ALLOC_ACCESSIBLE,
357 NUMA_NO_NODE);
358}
359
360static inline void * __init memblock_alloc_from(phys_addr_t size,
361 phys_addr_t align,
362 phys_addr_t min_addr)
363{
364 return memblock_alloc_try_nid(size, align, min_addr,
365 MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
366}
367
368static inline void * __init memblock_alloc_nopanic(phys_addr_t size,
369 phys_addr_t align)
370{
371 return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
372 MEMBLOCK_ALLOC_ACCESSIBLE,
373 NUMA_NO_NODE);
374}
375
376static inline void * __init memblock_alloc_low(phys_addr_t size,
377 phys_addr_t align)
378{
379 return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
380 ARCH_LOW_ADDRESS_LIMIT, NUMA_NO_NODE);
381}
382static inline void * __init memblock_alloc_low_nopanic(phys_addr_t size,
383 phys_addr_t align)
384{
385 return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
386 ARCH_LOW_ADDRESS_LIMIT,
387 NUMA_NO_NODE);
388}
389
390static inline void * __init memblock_alloc_from_nopanic(phys_addr_t size,
391 phys_addr_t align,
392 phys_addr_t min_addr)
393{
394 return memblock_alloc_try_nid_nopanic(size, align, min_addr,
395 MEMBLOCK_ALLOC_ACCESSIBLE,
396 NUMA_NO_NODE);
397}
398
399static inline void * __init memblock_alloc_node(phys_addr_t size,
400 phys_addr_t align, int nid)
401{
402 return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
403 MEMBLOCK_ALLOC_ACCESSIBLE, nid);
404}
405
406static inline void * __init memblock_alloc_node_nopanic(phys_addr_t size,
407 int nid)
408{
409 return memblock_alloc_try_nid_nopanic(size, 0, MEMBLOCK_LOW_LIMIT,
410 MEMBLOCK_ALLOC_ACCESSIBLE, nid);
411}
412
413static inline void __init memblock_free_early(phys_addr_t base,
414 phys_addr_t size)
415{
416 __memblock_free_early(base, size);
417}
418
419static inline void __init memblock_free_early_nid(phys_addr_t base,
420 phys_addr_t size, int nid)
421{
422 __memblock_free_early(base, size);
423}
424
425static inline void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
426{
427 __memblock_free_late(base, size);
428}
429
308/* 430/*
309 * Set the allocation direction to bottom-up or top-down. 431 * Set the allocation direction to bottom-up or top-down.
310 */ 432 */
@@ -323,10 +445,6 @@ static inline bool memblock_bottom_up(void)
323 return memblock.bottom_up; 445 return memblock.bottom_up;
324} 446}
325 447
326/* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
327#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
328#define MEMBLOCK_ALLOC_ACCESSIBLE 0
329
330phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align, 448phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
331 phys_addr_t start, phys_addr_t end, 449 phys_addr_t start, phys_addr_t end,
332 enum memblock_flags flags); 450 enum memblock_flags flags);
@@ -432,6 +550,31 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
432 i < memblock_type->cnt; \ 550 i < memblock_type->cnt; \
433 i++, rgn = &memblock_type->regions[i]) 551 i++, rgn = &memblock_type->regions[i])
434 552
553extern void *alloc_large_system_hash(const char *tablename,
554 unsigned long bucketsize,
555 unsigned long numentries,
556 int scale,
557 int flags,
558 unsigned int *_hash_shift,
559 unsigned int *_hash_mask,
560 unsigned long low_limit,
561 unsigned long high_limit);
562
563#define HASH_EARLY 0x00000001 /* Allocating during early boot? */
564#define HASH_SMALL 0x00000002 /* sub-page allocation allowed, min
565 * shift passed via *_hash_shift */
566#define HASH_ZERO 0x00000004 /* Zero allocated hash table */
567
568/* Only NUMA needs hash distribution. 64bit NUMA architectures have
569 * sufficient vmalloc space.
570 */
571#ifdef CONFIG_NUMA
572#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
573extern int hashdist; /* Distribute hashes across NUMA nodes? */
574#else
575#define hashdist (0)
576#endif
577
435#ifdef CONFIG_MEMTEST 578#ifdef CONFIG_MEMTEST
436extern void early_memtest(phys_addr_t start, phys_addr_t end); 579extern void early_memtest(phys_addr_t start, phys_addr_t end);
437#else 580#else
generated by cgit v1.2.2 (git 2.25.0) at 2026-05-31 07:36:47 -0400