Release 4.7 include/linux/bootmem.h
/*
* Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
*/
#ifndef _LINUX_BOOTMEM_H
#define _LINUX_BOOTMEM_H
#include <linux/mmzone.h>
#include <linux/mm_types.h>
#include <asm/dma.h>
/*
* simple boot-time physical memory area allocator.
*/
extern unsigned long max_low_pfn;
extern unsigned long min_low_pfn;
/*
* highest page
*/
extern unsigned long max_pfn;
/*
* highest possible page
*/
extern unsigned long long max_possible_pfn;
#ifndef CONFIG_NO_BOOTMEM
/*
* node_bootmem_map is a map pointer - the bits represent all physical
* memory pages (including holes) on the node.
*/
typedef struct bootmem_data {
unsigned long node_min_pfn;
unsigned long node_low_pfn;
void *node_bootmem_map;
unsigned long last_end_off;
unsigned long hint_idx;
struct list_head list;
}
bootmem_data_t;
extern bootmem_data_t bootmem_node_data[];
#endif
extern unsigned long bootmem_bootmap_pages(unsigned long);
extern unsigned long init_bootmem_node(pg_data_t *pgdat,
unsigned long freepfn,
unsigned long startpfn,
unsigned long endpfn);
extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
extern unsigned long free_all_bootmem(void);
extern void reset_node_managed_pages(pg_data_t *pgdat);
extern void reset_all_zones_managed_pages(void);
extern void free_bootmem_node(pg_data_t *pgdat,
unsigned long addr,
unsigned long size);
extern void free_bootmem(unsigned long physaddr, unsigned long size);
extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
/*
* Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
* the architecture-specific code should honor this).
*
* If flags is BOOTMEM_DEFAULT, then the return value is always 0 (success).
* If flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the memory
* already was reserved.
*/
#define BOOTMEM_DEFAULT 0
#define BOOTMEM_EXCLUSIVE (1<<0)
extern int reserve_bootmem(unsigned long addr,
unsigned long size,
int flags);
extern int reserve_bootmem_node(pg_data_t *pgdat,
unsigned long physaddr,
unsigned long size,
int flags);
extern void *__alloc_bootmem(unsigned long size,
unsigned long align,
unsigned long goal);
extern void *__alloc_bootmem_nopanic(unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
extern void *__alloc_bootmem_node(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
void *__alloc_bootmem_node_high(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal,
unsigned long limit) __malloc;
extern void *__alloc_bootmem_low(unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
void *__alloc_bootmem_low_nopanic(unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal) __malloc;
#ifdef CONFIG_NO_BOOTMEM
/* We are using top down, so it is safe to use 0 here */
#define BOOTMEM_LOW_LIMIT 0
#else
#define BOOTMEM_LOW_LIMIT __pa(MAX_DMA_ADDRESS)
#endif
#define alloc_bootmem(x) \
__alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_align(x, align) \
__alloc_bootmem(x, align, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_nopanic(x) \
__alloc_bootmem_nopanic(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_pages(x) \
__alloc_bootmem(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_pages_nopanic(x) \
__alloc_bootmem_nopanic(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_node(pgdat, x) \
__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_node_nopanic(pgdat, x) \
__alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_pages_node(pgdat, x) \
__alloc_bootmem_node(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_pages_node_nopanic(pgdat, x) \
__alloc_bootmem_node_nopanic(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_low(x) \
__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
#define alloc_bootmem_low_pages_nopanic(x) \
__alloc_bootmem_low_nopanic(x, PAGE_SIZE, 0)
#define alloc_bootmem_low_pages(x) \
__alloc_bootmem_low(x, PAGE_SIZE, 0)
#define alloc_bootmem_low_pages_node(pgdat, x) \
__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
#if defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM)
/* FIXME: use MEMBLOCK_ALLOC_* variants here */
#define BOOTMEM_ALLOC_ACCESSIBLE 0
#define BOOTMEM_ALLOC_ANYWHERE (~(phys_addr_t)0)
/* FIXME: Move to memblock.h at a point where we remove nobootmem.c */
void *memblock_virt_alloc_try_nid_nopanic(phys_addr_t size,
phys_addr_t align, phys_addr_t min_addr,
phys_addr_t max_addr, int nid);
void *memblock_virt_alloc_try_nid(phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr, int nid);
void __memblock_free_early(phys_addr_t base, phys_addr_t size);
void __memblock_free_late(phys_addr_t base, phys_addr_t size);
static inline void * __init memblock_virt_alloc(
phys_addr_t size, phys_addr_t align)
{
return memblock_virt_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
BOOTMEM_ALLOC_ACCESSIBLE,
NUMA_NO_NODE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_nopanic(
phys_addr_t size, phys_addr_t align)
{
return memblock_virt_alloc_try_nid_nopanic(size, align,
BOOTMEM_LOW_LIMIT,
BOOTMEM_ALLOC_ACCESSIBLE,
NUMA_NO_NODE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
#ifndef ARCH_LOW_ADDRESS_LIMIT
#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
#endif
static inline void * __init memblock_virt_alloc_low(
phys_addr_t size, phys_addr_t align)
{
return memblock_virt_alloc_try_nid(size, align,
BOOTMEM_LOW_LIMIT,
ARCH_LOW_ADDRESS_LIMIT,
NUMA_NO_NODE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yinghai lu | yinghai lu | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_low_nopanic(
phys_addr_t size, phys_addr_t align)
{
return memblock_virt_alloc_try_nid_nopanic(size, align,
BOOTMEM_LOW_LIMIT,
ARCH_LOW_ADDRESS_LIMIT,
NUMA_NO_NODE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yinghai lu | yinghai lu | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_from_nopanic(
phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
{
return memblock_virt_alloc_try_nid_nopanic(size, align, min_addr,
BOOTMEM_ALLOC_ACCESSIBLE,
NUMA_NO_NODE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_node(
phys_addr_t size, int nid)
{
return memblock_virt_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
BOOTMEM_ALLOC_ACCESSIBLE, nid);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_node_nopanic(
phys_addr_t size, int nid)
{
return memblock_virt_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
BOOTMEM_ALLOC_ACCESSIBLE,
nid);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_early(
phys_addr_t base, phys_addr_t size)
{
__memblock_free_early(base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_early_nid(
phys_addr_t base, phys_addr_t size, int nid)
{
__memblock_free_early(base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_late(
phys_addr_t base, phys_addr_t size)
{
__memblock_free_late(base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
#else
#define BOOTMEM_ALLOC_ACCESSIBLE 0
/* Fall back to all the existing bootmem APIs */
static inline void * __init memblock_virt_alloc(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem(size, align, BOOTMEM_LOW_LIMIT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_nopanic(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_low(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_low(size, align, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yinghai lu | yinghai lu | 34 | 100.00% | 2 | 100.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
static inline void * __init memblock_virt_alloc_low_nopanic(
phys_addr_t size, phys_addr_t align)
{
if (!align)
align = SMP_CACHE_BYTES;
return __alloc_bootmem_low_nopanic(size, align, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yinghai lu | yinghai lu | 34 | 100.00% | 2 | 100.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
static inline void * __init memblock_virt_alloc_from_nopanic(
phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
{
return __alloc_bootmem_nopanic(size, align, min_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_node(
phys_addr_t size, int nid)
{
return __alloc_bootmem_node(NODE_DATA(nid), size, SMP_CACHE_BYTES,
BOOTMEM_LOW_LIMIT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_node_nopanic(
phys_addr_t size, int nid)
{
return __alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
SMP_CACHE_BYTES,
BOOTMEM_LOW_LIMIT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid)
{
return __alloc_bootmem_node_high(NODE_DATA(nid), size, align,
min_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 39 | 100.00% | 1 | 100.00% |
| Total | 39 | 100.00% | 1 | 100.00% |
static inline void * __init memblock_virt_alloc_try_nid_nopanic(
phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr, int nid)
{
return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
min_addr, max_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 41 | 100.00% | 1 | 100.00% |
| Total | 41 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_early(
phys_addr_t base, phys_addr_t size)
{
free_bootmem(base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_early_nid(
phys_addr_t base, phys_addr_t size, int nid)
{
free_bootmem_node(NODE_DATA(nid), base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline void __init memblock_free_late(
phys_addr_t base, phys_addr_t size)
{
free_bootmem_late(base, size);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
#endif /* defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM) */
#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
extern void *alloc_remap(int nid, unsigned long size);
#else
static inline void *alloc_remap(int nid, unsigned long size)
{
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave hansen | dave hansen | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
#endif /* CONFIG_HAVE_ARCH_ALLOC_REMAP */
extern void *alloc_large_system_hash(const char *tablename,
unsigned long bucketsize,
unsigned long numentries,
int scale,
int flags,
unsigned int *_hash_shift,
unsigned int *_hash_mask,
unsigned long low_limit,
unsigned long high_limit);
#define HASH_EARLY 0x00000001
/* Allocating during early boot? */
#define HASH_SMALL 0x00000002
/* sub-page allocation allowed, min
* shift passed via *_hash_shift */
/* Only NUMA needs hash distribution. 64bit NUMA architectures have
* sufficient vmalloc space.
*/
#ifdef CONFIG_NUMA
#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
extern int hashdist; /* Distribute hashes across NUMA nodes? */
#else
#define hashdist (0)
#endif
#endif /* _LINUX_BOOTMEM_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| santosh shilimkar | santosh shilimkar | 615 | 43.16% | 1 | 2.04% |
| yinghai lu | yinghai lu | 241 | 16.91% | 8 | 16.33% |
| pre-git | pre-git | 139 | 9.75% | 6 | 12.24% |
| johannes weiner | johannes weiner | 83 | 5.82% | 4 | 8.16% |
| rasmus villemoes | rasmus villemoes | 69 | 4.84% | 2 | 4.08% |
| dave hansen | dave hansen | 38 | 2.67% | 1 | 2.04% |
| tejun heo | tejun heo | 37 | 2.60% | 2 | 4.08% |
| david howells | david howells | 34 | 2.39% | 1 | 2.04% |
| ravikiran g thirumalai | ravikiran g thirumalai | 26 | 1.82% | 1 | 2.04% |
| jan beulich | jan beulich | 19 | 1.33% | 2 | 4.08% |
| brent casavant | brent casavant | 18 | 1.26% | 1 | 2.04% |
| andi kleen | andi kleen | 16 | 1.12% | 2 | 4.08% |
| bernhard walle | bernhard walle | 12 | 0.84% | 1 | 2.04% |
| fujita tomonori | fujita tomonori | 12 | 0.84% | 1 | 2.04% |
| suresh siddha | suresh siddha | 9 | 0.63% | 1 | 2.04% |
| tang chen | tang chen | 9 | 0.63% | 1 | 2.04% |
| franck bui-huu | franck bui-huu | 8 | 0.56% | 3 | 6.12% |
| igor mammedov | igor mammedov | 7 | 0.49% | 1 | 2.04% |
| jiang liu | jiang liu | 7 | 0.49% | 1 | 2.04% |
| linus torvalds | linus torvalds | 6 | 0.42% | 1 | 2.04% |
| tim bird | tim bird | 5 | 0.35% | 1 | 2.04% |
| kamezawa hiroyuki | kamezawa hiroyuki | 4 | 0.28% | 1 | 2.04% |
| andrew morton | andrew morton | 4 | 0.28% | 2 | 4.08% |
| yasunori goto | yasunori goto | 3 | 0.21% | 1 | 2.04% |
| joonsoo kim | joonsoo kim | 2 | 0.14% | 1 | 2.04% |
| wang sheng-hui | wang sheng-hui | 1 | 0.07% | 1 | 2.04% |
| anton blanchard | anton blanchard | 1 | 0.07% | 1 | 2.04% |
| Total | 1425 | 100.00% | 49 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.