http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/bootmem.h

/* * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999 */ #ifndef _LINUX_BOOTMEM_H #define _LINUX_BOOTMEM_H #include <asm/pgtable.h> #include <asm/dma.h> #include <linux/cache.h> #include <linux/init.h> #include <linux/mmzone.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; #ifdef CONFIG_CRASH_DUMP extern unsigned long saved_max_pfn; #endif /* * 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_boot_start; unsigned long node_low_pfn; void *node_bootmem_map; unsigned long last_offset; unsigned long last_pos; unsigned long last_success; /* Previous allocation point. To speed * up searching */ } bootmem_data_t; extern unsigned long __init bootmem_bootmap_pages (unsigned long); extern unsigned long __init init_bootmem (unsigned long addr, unsigned long memend); extern void __init free_bootmem (unsigned long addr, unsigned long size); extern void * __init __alloc_bootmem (unsigned long size, unsigned long align, unsigned long goal); extern void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal); extern void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE extern void __init reserve_bootmem (unsigned long addr, unsigned long size); #define alloc_bootmem(x) \ __alloc_bootmem((x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low(x) \ __alloc_bootmem_low((x), SMP_CACHE_BYTES, 0) #define alloc_bootmem_pages(x) \ __alloc_bootmem((x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages(x) \ __alloc_bootmem_low((x), PAGE_SIZE, 0) #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ extern unsigned long __init free_all_bootmem (void); extern void * __init __alloc_bootmem_node (pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); extern unsigned long __init init_bootmem_node (pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, unsigned long endpfn); extern void __init reserve_bootmem_node (pg_data_t *pgdat, unsigned long physaddr, unsigned long size); extern void __init free_bootmem_node (pg_data_t *pgdat, unsigned long addr, unsigned long size); extern unsigned long __init free_all_bootmem_node (pg_data_t *pgdat); #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE #define alloc_bootmem_node(pgdat, x) \ __alloc_bootmem_node((pgdat), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node(pgdat, x) \ __alloc_bootmem_node((pgdat), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages_node(pgdat, x) \ __alloc_bootmem_low_node((pgdat), (x), PAGE_SIZE, 0) #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ #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; } #endif extern unsigned long __initdata nr_kernel_pages; extern unsigned long __initdata nr_all_pages; extern void *__init 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 limit); #define HASH_HIGHMEM 0x00000001 /* Consider highmem? */ #define HASH_EARLY 0x00000002 /* Allocating during early boot? */ /* Only NUMA needs hash distribution. * IA64 is known to have sufficient vmalloc space. */ #if defined(CONFIG_NUMA) && defined(CONFIG_IA64) #define HASHDIST_DEFAULT 1 #else #define HASHDIST_DEFAULT 0 #endif extern int __initdata hashdist; /* Distribute hashes across NUMA nodes? */ #endif /* _LINUX_BOOTMEM_H */