cregit-Linux how code gets into the kernel

Release 4.14 arch/ia64/include/asm/meminit.h

#ifndef meminit_h

#define meminit_h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */


/*
 * Entries defined so far:
 *      - boot param structure itself
 *      - memory map
 *      - initrd (optional)
 *      - command line string
 *      - kernel code & data
 *      - crash dumping code reserved region
 *      - Kernel memory map built from EFI memory map
 *      - ELF core header
 *
 * More could be added if necessary
 */

#define IA64_MAX_RSVD_REGIONS 9


struct rsvd_region {
	
u64 start;	/* virtual address of beginning of element */
	
u64 end;	/* virtual address of end of element + 1 */
};

extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
extern int num_rsvd_regions;

extern void find_memory (void);
extern void reserve_memory (void);
extern void find_initrd (void);
extern int filter_rsvd_memory (u64 start, u64 end, void *arg);
extern int filter_memory (u64 start, u64 end, void *arg);
extern unsigned long efi_memmap_init(u64 *s, u64 *e);
extern int find_max_min_low_pfn (u64, u64, void *);

extern unsigned long vmcore_find_descriptor_size(unsigned long address);
extern int reserve_elfcorehdr(u64 *start, u64 *end);

/*
 * For rounding an address to the next IA64_GRANULE_SIZE or order
 */

#define GRANULEROUNDDOWN(n)	((n) & ~(IA64_GRANULE_SIZE-1))

#define GRANULEROUNDUP(n)	(((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))

#ifdef CONFIG_NUMA
  extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
#else

# define call_pernode_memory(start, len, func)	(*func)(start, len, 0)
#endif


#define IGNORE_PFN0	1	
/* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */

extern int register_active_ranges(u64 start, u64 len, int nid);

#ifdef CONFIG_VIRTUAL_MEM_MAP

# define LARGE_GAP	0x40000000 
/* Use virtual mem map if hole is > than this */
  extern unsigned long VMALLOC_END;
  extern struct page *vmem_map;
  extern int find_largest_hole(u64 start, u64 end, void *arg);
  extern int create_mem_map_page_table(u64 start, u64 end, void *arg);
  extern int vmemmap_find_next_valid_pfn(int, int);
#else

static inline int vmemmap_find_next_valid_pfn(int node, int i) { return i + 1; }

Contributors

PersonTokensPropCommitsCommitProp
Bob Picco18100.00%1100.00%
Total18100.00%1100.00%

#endif #endif /* meminit_h */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Mosberger-Tang12843.99%213.33%
Jesse Barnes4816.49%16.67%
Bob Picco4114.09%320.00%
Magnus Damm217.22%16.67%
Menyhart Zoltan165.50%16.67%
Matthew Wilcox124.12%16.67%
Zou Nan hai103.44%16.67%
Tony Luck82.75%16.67%
Bernhard Walle41.37%16.67%
Isaku Yamahata10.34%16.67%
Tejun Heo10.34%16.67%
Boris Ostrovsky10.34%16.67%
Total291100.00%15100.00%
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