#ifndef meminit_h #define meminit_h /* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ /* * Entries defined so far: * - boot param structure itself * - memory map * - initrd (optional) * - command line string * - kernel code & data * - crash dumping code reserved region * - Kernel memory map built from EFI memory map * - ELF core header * * More could be added if necessary */ #define IA64_MAX_RSVD_REGIONS 8 struct rsvd_region { unsigned long start; /* virtual address of beginning of element */ unsigned long end; /* virtual address of end of element + 1 */ }; extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1]; extern int num_rsvd_regions; extern void find_memory (void); extern void reserve_memory (void); extern void find_initrd (void); extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg); extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e); extern int find_max_min_low_pfn (unsigned long , unsigned long, void *); extern unsigned long vmcore_find_descriptor_size(unsigned long address); extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); /* * For rounding an address to the next IA64_GRANULE_SIZE or order */ #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) #ifdef CONFIG_NUMA extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); #else # define call_pernode_memory(start, len, func) (*func)(start, len, 0) #endif #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ extern int register_active_ranges(u64 start, u64 end, void *arg); #ifdef CONFIG_VIRTUAL_MEM_MAP # define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ extern unsigned long vmalloc_end; extern struct page *vmem_map; extern int find_largest_hole (u64 start, u64 end, void *arg); extern int create_mem_map_page_table (u64 start, u64 end, void *arg); extern int vmemmap_find_next_valid_pfn(int, int); #else static inline int vmemmap_find_next_valid_pfn(int node, int i) { return i + 1; } #endif #endif /* meminit_h */