#ifndef _LINUX_BOOTMEM_H
#define _LINUX_BOOTMEM_H
-#include <asm/pgtable.h>
-#include <asm/dma.h>
-#include <linux/cache.h>
-#include <linux/init.h>
#include <linux/mmzone.h>
+#include <asm/dma.h>
/*
* simple boot-time physical memory area allocator.
struct list_head list;
} bootmem_data_t;
-extern unsigned long bootmem_bootmap_pages (unsigned long);
-extern unsigned long init_bootmem (unsigned long addr, unsigned long memend);
-extern void free_bootmem (unsigned long addr, unsigned long size);
-extern void * __alloc_bootmem (unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern void * __alloc_bootmem_nopanic (unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern void * __alloc_bootmem_low(unsigned long size,
+extern unsigned long bootmem_bootmap_pages(unsigned long);
+extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
+extern void free_bootmem(unsigned long addr, unsigned long size);
+extern void *__alloc_bootmem(unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern void *__alloc_bootmem_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern void *__alloc_bootmem_low(unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern void *__alloc_bootmem_core(struct bootmem_data *bdata,
+ unsigned long size,
unsigned long align,
- unsigned long goal);
-extern void * __alloc_bootmem_low_node(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern void * __alloc_bootmem_core(struct bootmem_data *bdata,
- unsigned long size,
- unsigned long align,
- unsigned long goal,
- unsigned long limit);
+ unsigned long goal,
+ unsigned long limit);
+
+/*
+ * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
+ * the architecture-specific code should honor this)
+ */
+#define BOOTMEM_DEFAULT 0
+#define BOOTMEM_EXCLUSIVE (1<<0)
+
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
-extern void reserve_bootmem (unsigned long addr, unsigned long size);
+/*
+ * If flags is 0, then the return value is always 0 (success). If
+ * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the
+ * memory already was reserved.
+ */
+extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
#define alloc_bootmem(x) \
__alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_low(x) \
#define alloc_bootmem_low_pages(x) \
__alloc_bootmem_low(x, PAGE_SIZE, 0)
#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
-extern unsigned long free_all_bootmem (void);
-extern void * __alloc_bootmem_node (pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern unsigned long init_bootmem_node (pg_data_t *pgdat,
- unsigned long freepfn,
- unsigned long startpfn,
- unsigned long endpfn);
-extern void reserve_bootmem_node (pg_data_t *pgdat,
- unsigned long physaddr,
- unsigned long size);
-extern void free_bootmem_node (pg_data_t *pgdat,
- unsigned long addr,
- unsigned long size);
-extern unsigned long free_all_bootmem_node (pg_data_t *pgdat);
+
+extern unsigned long free_all_bootmem(void);
+extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
+extern void *__alloc_bootmem_node(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern unsigned long init_bootmem_node(pg_data_t *pgdat,
+ unsigned long freepfn,
+ unsigned long startpfn,
+ unsigned long endpfn);
+extern void reserve_bootmem_node(pg_data_t *pgdat,
+ unsigned long physaddr,
+ unsigned long size,
+ int flags);
+extern void free_bootmem_node(pg_data_t *pgdat,
+ unsigned long addr,
+ unsigned long size);
+extern void *alloc_bootmem_section(unsigned long size,
+ unsigned long section_nr);
+
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
#define alloc_bootmem_node(pgdat, x) \
__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
{
return NULL;
}
-#endif
+#endif /* CONFIG_HAVE_ARCH_ALLOC_REMAP */
extern unsigned long __meminitdata nr_kernel_pages;
-extern unsigned long nr_all_pages;
+extern unsigned long __meminitdata nr_all_pages;
-extern void * alloc_large_system_hash(const char *tablename,
- unsigned long bucketsize,
- unsigned long numentries,
- int scale,
- int flags,
- unsigned int *_hash_shift,
- unsigned int *_hash_mask,
- unsigned long limit);
+extern void *alloc_large_system_hash(const char *tablename,
+ unsigned long bucketsize,
+ unsigned long numentries,
+ int scale,
+ int flags,
+ unsigned int *_hash_shift,
+ unsigned int *_hash_mask,
+ unsigned long limit);
-#define HASH_HIGHMEM 0x00000001 /* Consider highmem? */
-#define HASH_EARLY 0x00000002 /* Allocating during early boot? */
+#define HASH_EARLY 0x00000001 /* Allocating during early boot? */
/* Only NUMA needs hash distribution.
- * IA64 is known to have sufficient vmalloc space.
+ * IA64 and x86_64 have sufficient vmalloc space.
*/
-#if defined(CONFIG_NUMA) && defined(CONFIG_IA64)
+#if defined(CONFIG_NUMA) && (defined(CONFIG_IA64) || defined(CONFIG_X86_64))
#define HASHDIST_DEFAULT 1
#else
#define HASHDIST_DEFAULT 0