mirror of
https://github.com/torvalds/linux.git
synced 2024-11-12 15:11:50 +00:00
c9cce83dd1
This patch removes the extern struct resource declarations for data_resource, code_resource and bss_resource on x86 and declares that three structures as static as done on other architectures like IA64. On i386, these structures are moved to setup_32.c (from e820_32.c) because that's code that is not specific to e820 and also required on EFI systems. That makes the "extern" reference superfluous. On x86_64, data_resource, code_resource and bss_resource are passed to e820_reserve_resources() as arguments just as done on i386 and IA64. That also avoids the "extern" reference and it's possible to make it static. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
46 lines
1.3 KiB
C
46 lines
1.3 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 struct e820map e820;
|
|
|
|
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 find_max_pfn(void);
|
|
extern void register_bootmem_low_pages(unsigned long max_low_pfn);
|
|
extern void e820_register_memory(void);
|
|
extern void limit_regions(unsigned long long size);
|
|
extern void print_memory_map(char *who);
|
|
extern void legacy_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*/
|