1*7f30491cSTony Luck #ifndef meminit_h 2*7f30491cSTony Luck #define meminit_h 3*7f30491cSTony Luck 4*7f30491cSTony Luck /* 5*7f30491cSTony Luck * This file is subject to the terms and conditions of the GNU General Public 6*7f30491cSTony Luck * License. See the file "COPYING" in the main directory of this archive 7*7f30491cSTony Luck * for more details. 8*7f30491cSTony Luck */ 9*7f30491cSTony Luck 10*7f30491cSTony Luck 11*7f30491cSTony Luck /* 12*7f30491cSTony Luck * Entries defined so far: 13*7f30491cSTony Luck * - boot param structure itself 14*7f30491cSTony Luck * - memory map 15*7f30491cSTony Luck * - initrd (optional) 16*7f30491cSTony Luck * - command line string 17*7f30491cSTony Luck * - kernel code & data 18*7f30491cSTony Luck * - crash dumping code reserved region 19*7f30491cSTony Luck * - Kernel memory map built from EFI memory map 20*7f30491cSTony Luck * - ELF core header 21*7f30491cSTony Luck * 22*7f30491cSTony Luck * More could be added if necessary 23*7f30491cSTony Luck */ 24*7f30491cSTony Luck #define IA64_MAX_RSVD_REGIONS 8 25*7f30491cSTony Luck 26*7f30491cSTony Luck struct rsvd_region { 27*7f30491cSTony Luck unsigned long start; /* virtual address of beginning of element */ 28*7f30491cSTony Luck unsigned long end; /* virtual address of end of element + 1 */ 29*7f30491cSTony Luck }; 30*7f30491cSTony Luck 31*7f30491cSTony Luck extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1]; 32*7f30491cSTony Luck extern int num_rsvd_regions; 33*7f30491cSTony Luck 34*7f30491cSTony Luck extern void find_memory (void); 35*7f30491cSTony Luck extern void reserve_memory (void); 36*7f30491cSTony Luck extern void find_initrd (void); 37*7f30491cSTony Luck extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg); 38*7f30491cSTony Luck extern int filter_memory (unsigned long start, unsigned long end, void *arg); 39*7f30491cSTony Luck extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e); 40*7f30491cSTony Luck extern int find_max_min_low_pfn (unsigned long , unsigned long, void *); 41*7f30491cSTony Luck 42*7f30491cSTony Luck extern unsigned long vmcore_find_descriptor_size(unsigned long address); 43*7f30491cSTony Luck extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); 44*7f30491cSTony Luck 45*7f30491cSTony Luck /* 46*7f30491cSTony Luck * For rounding an address to the next IA64_GRANULE_SIZE or order 47*7f30491cSTony Luck */ 48*7f30491cSTony Luck #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) 49*7f30491cSTony Luck #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) 50*7f30491cSTony Luck #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) 51*7f30491cSTony Luck 52*7f30491cSTony Luck #ifdef CONFIG_NUMA 53*7f30491cSTony Luck extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); 54*7f30491cSTony Luck #else 55*7f30491cSTony Luck # define call_pernode_memory(start, len, func) (*func)(start, len, 0) 56*7f30491cSTony Luck #endif 57*7f30491cSTony Luck 58*7f30491cSTony Luck #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ 59*7f30491cSTony Luck 60*7f30491cSTony Luck extern int register_active_ranges(u64 start, u64 len, int nid); 61*7f30491cSTony Luck 62*7f30491cSTony Luck #ifdef CONFIG_VIRTUAL_MEM_MAP 63*7f30491cSTony Luck # define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ 64*7f30491cSTony Luck extern unsigned long vmalloc_end; 65*7f30491cSTony Luck extern struct page *vmem_map; 66*7f30491cSTony Luck extern int find_largest_hole (u64 start, u64 end, void *arg); 67*7f30491cSTony Luck extern int create_mem_map_page_table (u64 start, u64 end, void *arg); 68*7f30491cSTony Luck extern int vmemmap_find_next_valid_pfn(int, int); 69*7f30491cSTony Luck #else 70*7f30491cSTony Luck static inline int vmemmap_find_next_valid_pfn(int node, int i) 71*7f30491cSTony Luck { 72*7f30491cSTony Luck return i + 1; 73*7f30491cSTony Luck } 74*7f30491cSTony Luck #endif 75*7f30491cSTony Luck #endif /* meminit_h */ 76