/* 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