diff options
Diffstat (limited to 'arch/x86/include/asm/e820/api.h')
-rw-r--r-- | arch/x86/include/asm/e820/api.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h new file mode 100644 index 000000000000..010efbceb40c --- /dev/null +++ b/arch/x86/include/asm/e820/api.h @@ -0,0 +1,73 @@ +#ifndef _ASM_E820_API_H +#define _ASM_E820_API_H + +/* + * E820_X_MAX is the maximum size of the extended E820 table. The extended + * table may contain up to 3 extra E820 entries per possible NUMA node, so we + * make room for 3 * MAX_NUMNODES possible entries, beyond the standard 128. + * Also note that E820_X_MAX *must* be defined before we include asm/e820/types.h. + */ +#include <linux/numa.h> +#define E820_X_MAX (E820MAX + 3 * MAX_NUMNODES) + +#include <asm/e820/types.h> + +#ifndef __ASSEMBLY__ +/* see comment in arch/x86/kernel/e820.c */ +extern struct e820map *e820; +extern struct e820map *e820_saved; + +extern unsigned long pci_mem_start; +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_add_region(u64 start, u64 size, int type); +extern void e820_print_map(char *who); +extern int +sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, u32 *pnr_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); +struct setup_data; +extern void parse_e820_ext(u64 phys_addr, u32 data_len); + +#if defined(CONFIG_X86_64) || \ + (defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION)) +extern void e820_mark_nosave_regions(unsigned long limit_pfn); +#else +static inline void e820_mark_nosave_regions(unsigned long limit_pfn) +{ +} +#endif + +extern unsigned long e820_end_of_ram_pfn(void); +extern unsigned long e820_end_of_low_ram_pfn(void); +extern u64 early_reserve_e820(u64 sizet, u64 align); + +void memblock_x86_fill(void); +void memblock_find_dma_reserve(void); + +extern void finish_e820_parsing(void); +extern void e820_reserve_resources(void); +extern void e820_reserve_resources_late(void); +extern void setup_memory_map(void); +extern char *default_machine_specific_memory_setup(void); + +extern void e820_reallocate_tables(void); + +/* + * Returns true iff the specified range [s,e) is completely contained inside + * the ISA region. + */ +static inline bool is_ISA_range(u64 s, u64 e) +{ + return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS; +} + +#endif /* __ASSEMBLY__ */ +#include <linux/ioport.h> + +#define HIGH_MEMORY (1024*1024) +#endif /* _ASM_E820_API_H */ |