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Diffstat (limited to 'arch/ia64/include/asm/meminit.h')
-rw-r--r--arch/ia64/include/asm/meminit.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h
new file mode 100644
index 000000000000..7245a5781594
--- /dev/null
+++ b/arch/ia64/include/asm/meminit.h
@@ -0,0 +1,75 @@
+#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 */