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fc5dfebc80
Add new pageblock_start_pfn() and pageblock_align() macro which are needed by memblock tests. Link: https://lkml.kernel.org/r/20220907082643.186979-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: David Hildenbrand <david@redhat.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
38 lines
875 B
C
38 lines
875 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_MMZONE_H
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#define _TOOLS_MMZONE_H
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#include <linux/atomic.h>
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struct pglist_data *first_online_pgdat(void);
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struct pglist_data *next_online_pgdat(struct pglist_data *pgdat);
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#define for_each_online_pgdat(pgdat) \
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for (pgdat = first_online_pgdat(); \
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pgdat; \
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pgdat = next_online_pgdat(pgdat))
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enum zone_type {
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__MAX_NR_ZONES
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};
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#define MAX_NR_ZONES __MAX_NR_ZONES
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#define MAX_ORDER 11
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#define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1))
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#define pageblock_order (MAX_ORDER - 1)
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#define pageblock_nr_pages BIT(pageblock_order)
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#define pageblock_align(pfn) ALIGN((pfn), pageblock_nr_pages)
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#define pageblock_start_pfn(pfn) ALIGN_DOWN((pfn), pageblock_nr_pages)
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struct zone {
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atomic_long_t managed_pages;
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};
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typedef struct pglist_data {
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struct zone node_zones[MAX_NR_ZONES];
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} pg_data_t;
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#endif
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