38 lines
875 B
C
38 lines
875 B
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef _TOOLS_MMZONE_H
|
||
|
|
#define _TOOLS_MMZONE_H
|
||
|
|
|
||
|
|
#include <linux/atomic.h>
|
||
|
|
|
||
|
|
struct pglist_data *first_online_pgdat(void);
|
||
|
|
struct pglist_data *next_online_pgdat(struct pglist_data *pgdat);
|
||
|
|
|
||
|
|
#define for_each_online_pgdat(pgdat) \
|
||
|
|
for (pgdat = first_online_pgdat(); \
|
||
|
|
pgdat; \
|
||
|
|
pgdat = next_online_pgdat(pgdat))
|
||
|
|
|
||
|
|
enum zone_type {
|
||
|
|
__MAX_NR_ZONES
|
||
|
|
};
|
||
|
|
|
||
|
|
#define MAX_NR_ZONES __MAX_NR_ZONES
|
||
|
|
#define MAX_ORDER 11
|
||
|
|
#define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1))
|
||
|
|
|
||
|
|
#define pageblock_order (MAX_ORDER - 1)
|
||
|
|
#define pageblock_nr_pages BIT(pageblock_order)
|
||
|
|
#define pageblock_align(pfn) ALIGN((pfn), pageblock_nr_pages)
|
||
|
|
#define pageblock_start_pfn(pfn) ALIGN_DOWN((pfn), pageblock_nr_pages)
|
||
|
|
|
||
|
|
struct zone {
|
||
|
|
atomic_long_t managed_pages;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct pglist_data {
|
||
|
|
struct zone node_zones[MAX_NR_ZONES];
|
||
|
|
|
||
|
|
} pg_data_t;
|
||
|
|
|
||
|
|
#endif
|