d8c97d5f3a
New version leaves the original memory map unmodified. Also saves any granule trimmings for use by the uncached memory allocator. Inspired by Khalid Aziz (various traces of his patch still remain). Fixes to uncached_build_memmap() and sn2 testing by Martin Hicks. Signed-off-by: Tony Luck <tony.luck@intel.com>
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
#ifndef meminit_h
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#define meminit_h
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/config.h>
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/*
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* Entries defined so far:
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* - boot param structure itself
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* - memory map
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* - initrd (optional)
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* - command line string
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* - kernel code & data
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* - Kernel memory map built from EFI memory map
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*
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* More could be added if necessary
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*/
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#define IA64_MAX_RSVD_REGIONS 6
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struct rsvd_region {
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unsigned long start; /* virtual address of beginning of element */
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unsigned long end; /* virtual address of end of element + 1 */
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};
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extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
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extern int num_rsvd_regions;
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extern void find_memory (void);
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extern void reserve_memory (void);
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extern void find_initrd (void);
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extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
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extern void efi_memmap_init(unsigned long *, unsigned long *);
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/*
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* For rounding an address to the next IA64_GRANULE_SIZE or order
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*/
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#define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1))
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#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
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#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
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#ifdef CONFIG_DISCONTIGMEM
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extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
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#else
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# define call_pernode_memory(start, len, func) (*func)(start, len, 0)
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#endif
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#define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */
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#ifdef CONFIG_VIRTUAL_MEM_MAP
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# define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */
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extern unsigned long vmalloc_end;
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extern struct page *vmem_map;
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extern int find_largest_hole (u64 start, u64 end, void *arg);
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extern int create_mem_map_page_table (u64 start, u64 end, void *arg);
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#endif
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#endif /* meminit_h */
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