mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-16 09:34:22 +08:00
0dbfafa5fc
The x86_64 code has centralized the memory setup code in
e820_64.c. This patch copies that approach to i386:
- early_param("mem", ...) parsing is moved from
setup_32.c to e820_32.c.
- setup_memory_map() and finish_e820_parsing() are
factored out from setup_arch(), and declarations
are added to e820_32.h.
- print_memory_map() is made static and removed from
e820_32.h.
- user_defined_memmap is marked as __initdata.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
|
|
* structures and definitions for the int 15, ax=e820 memory map
|
|
* scheme.
|
|
*
|
|
* In a nutshell, arch/i386/boot/setup.S populates a scratch table
|
|
* in the empty_zero_block that contains a list of usable address/size
|
|
* duples. In arch/i386/kernel/setup.c, this information is
|
|
* transferred into the e820map, and in arch/i386/mm/init.c, that
|
|
* new information is used to mark pages reserved or not.
|
|
*
|
|
*/
|
|
#ifndef __E820_HEADER
|
|
#define __E820_HEADER
|
|
|
|
#include <linux/ioport.h>
|
|
|
|
#define HIGH_MEMORY (1024*1024)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
extern void setup_memory_map(void);
|
|
extern void finish_e820_parsing(void);
|
|
|
|
extern struct e820map e820;
|
|
extern void update_e820(void);
|
|
|
|
extern int e820_all_mapped(unsigned long start, unsigned long end,
|
|
unsigned type);
|
|
extern int e820_any_mapped(u64 start, u64 end, unsigned type);
|
|
extern void propagate_e820_map(void);
|
|
extern void register_bootmem_low_pages(unsigned long max_low_pfn);
|
|
extern void add_memory_region(unsigned long long start,
|
|
unsigned long long size, int type);
|
|
extern void update_memory_range(u64 start, u64 size, unsigned old_type,
|
|
unsigned new_type);
|
|
extern void e820_register_memory(void);
|
|
extern void limit_regions(unsigned long long size);
|
|
extern void init_iomem_resources(struct resource *code_resource,
|
|
struct resource *data_resource,
|
|
struct resource *bss_resource);
|
|
|
|
#if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
|
|
extern void e820_mark_nosave_regions(void);
|
|
#else
|
|
static inline void e820_mark_nosave_regions(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif/*!__ASSEMBLY__*/
|
|
#endif/*__E820_HEADER*/
|