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>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* structures and definitions for the int 15, ax=e820 memory map
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* scheme.
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*
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* In a nutshell, arch/i386/boot/setup.S populates a scratch table
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* in the empty_zero_block that contains a list of usable address/size
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* duples. In arch/i386/kernel/setup.c, this information is
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* transferred into the e820map, and in arch/i386/mm/init.c, that
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* new information is used to mark pages reserved or not.
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*
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*/
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#ifndef __E820_HEADER
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#define __E820_HEADER
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#include <linux/ioport.h>
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#define HIGH_MEMORY (1024*1024)
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#ifndef __ASSEMBLY__
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extern struct e820map e820;
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extern int e820_all_mapped(unsigned long start, unsigned long end,
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unsigned type);
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extern int e820_any_mapped(u64 start, u64 end, unsigned type);
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extern void find_max_pfn(void);
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extern void register_bootmem_low_pages(unsigned long max_low_pfn);
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extern void e820_register_memory(void);
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extern void limit_regions(unsigned long long size);
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extern void print_memory_map(char *who);
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extern void legacy_init_iomem_resources(struct resource *code_resource,
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struct resource *data_resource,
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struct resource *bss_resource);
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#if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
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extern void e820_mark_nosave_regions(void);
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#else
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static inline void e820_mark_nosave_regions(void)
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{
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}
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#endif
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#endif/*!__ASSEMBLY__*/
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#endif/*__E820_HEADER*/
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