98075d245a
There is a NUMA memory configuration issue in 2.6.24: A 2-node machine of ours has got the following memory layout: Node 0: 0 - 2 Gbytes Node 0: 4 - 8 Gbytes Node 1: 8 - 16 Gbytes Node 0: 16 - 18 Gbytes "efi_memmap_init()" merges the three last ranges into one. "register_active_ranges()" is called as follows: efi_memmap_walk(register_active_ranges, NULL); i.e. once for the 4 - 18 Gbytes range. It picks up the node number from the start address, and registers all the memory for the node #0. "register_active_ranges()" should be called as follows to make sure there is no merged address range at its entry: efi_memmap_walk(filter_memory, register_active_ranges); "filter_memory()" is similar to "filter_rsvd_memory()", but the reserved memory ranges are not filtered out. Signed-off-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net> Signed-off-by: Tony Luck <tony.luck@intel.com>
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
#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 8
|
|
|
|
struct rsvd_region {
|
|
unsigned long start; /* virtual address of beginning of element */
|
|
unsigned long 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 (unsigned long start, unsigned long end, void *arg);
|
|
extern int filter_memory (unsigned long start, unsigned long end, void *arg);
|
|
extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e);
|
|
extern int find_max_min_low_pfn (unsigned long , unsigned long, void *);
|
|
|
|
extern unsigned long vmcore_find_descriptor_size(unsigned long address);
|
|
extern int reserve_elfcorehdr(unsigned long *start, unsigned long *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))
|
|
#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-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;
|
|
}
|
|
#endif
|
|
#endif /* meminit_h */
|