#define E820_ACPI 3
#define E820_NVS 4
+/* reserved RAM used by kernel itself */
+#define E820_RESERVED_KERN 128
+
#ifndef __ASSEMBLY__
struct e820entry {
__u64 addr; /* start of memory segment */
struct e820entry map[E820_X_MAX];
};
+#ifdef __KERNEL__
+/* see comment in arch/x86/kernel/e820.c */
extern struct e820map e820;
+extern struct e820map e820_saved;
extern int e820_any_mapped(u64 start, u64 end, unsigned type);
extern int e820_all_mapped(u64 start, u64 end, unsigned type);
extern void e820_print_map(char *who);
extern int
sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, int *pnr_map);
-extern int copy_e820_map(struct e820entry *biosmap, int nr_map);
extern u64 e820_update_range(u64 start, u64 size, unsigned old_type,
unsigned new_type);
+extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type,
+ int checktype);
extern void update_e820(void);
extern void e820_setup_gap(void);
+extern int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize,
+ unsigned long start_addr, unsigned long long end_addr);
struct setup_data;
extern void parse_e820_ext(struct setup_data *data, unsigned long pa_data);
extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align);
extern u64 find_e820_area_size(u64 start, u64 *sizep, u64 align);
extern void reserve_early(u64 start, u64 end, char *name);
+extern void reserve_early_overlap_ok(u64 start, u64 end, char *name);
extern void free_early(u64 start, u64 end);
extern void early_res_to_bootmem(u64 start, u64 end);
extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
-extern unsigned long e820_end_of_ram(void);
+extern unsigned long e820_end_of_ram_pfn(void);
+extern unsigned long e820_end_of_low_ram_pfn(void);
extern int e820_find_active_region(const struct e820entry *ei,
unsigned long start_pfn,
unsigned long last_pfn,
extern char *default_machine_specific_memory_setup(void);
extern char *machine_specific_memory_setup(void);
extern char *memory_setup(void);
-
+#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#define ISA_START_ADDRESS 0xa0000