Contributors: 19
Author Tokens Token Proportion Commits Commit Proportion
JoonSoo Kim 135 43.97% 5 17.86%
Marek Szyprowski 42 13.68% 5 17.86%
Laura Abbott 39 12.70% 2 7.14%
Aslan Bakirov 28 9.12% 1 3.57%
Hari Bathini 10 3.26% 1 3.57%
Sasha Levin 8 2.61% 1 3.57%
David Hildenbrand 7 2.28% 1 3.57%
Thierry Reding 6 1.95% 1 3.57%
Weijie Yang 6 1.95% 1 3.57%
Pintu Kumar 5 1.63% 1 3.57%
Mike Travis 4 1.30% 1 3.57%
MinChan Kim 4 1.30% 1 3.57%
Barry Song 4 1.30% 1 3.57%
Mike Kravetz 3 0.98% 1 3.57%
Zi Yan 2 0.65% 1 3.57%
Motohiro Kosaki 1 0.33% 1 3.57%
Greg Kroah-Hartman 1 0.33% 1 3.57%
Anshuman Khandual 1 0.33% 1 3.57%
Lucas Stach 1 0.33% 1 3.57%
Total 307 28


/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __CMA_H__
#define __CMA_H__

#include <linux/init.h>
#include <linux/types.h>
#include <linux/numa.h>

#ifdef CONFIG_CMA_AREAS
#define MAX_CMA_AREAS	CONFIG_CMA_AREAS
#endif

#define CMA_MAX_NAME 64

/*
 *  the buddy -- especially pageblock merging and alloc_contig_range()
 * -- can deal with only some pageblocks of a higher-order page being
 *  MIGRATE_CMA, we can use pageblock_nr_pages.
 */
#define CMA_MIN_ALIGNMENT_PAGES pageblock_nr_pages
#define CMA_MIN_ALIGNMENT_BYTES (PAGE_SIZE * CMA_MIN_ALIGNMENT_PAGES)

struct cma;

extern unsigned long totalcma_pages;
extern phys_addr_t cma_get_base(const struct cma *cma);
extern unsigned long cma_get_size(const struct cma *cma);
extern const char *cma_get_name(const struct cma *cma);

extern int __init cma_declare_contiguous_nid(phys_addr_t base,
			phys_addr_t size, phys_addr_t limit,
			phys_addr_t alignment, unsigned int order_per_bit,
			bool fixed, const char *name, struct cma **res_cma,
			int nid);
static inline int __init cma_declare_contiguous(phys_addr_t base,
			phys_addr_t size, phys_addr_t limit,
			phys_addr_t alignment, unsigned int order_per_bit,
			bool fixed, const char *name, struct cma **res_cma)
{
	return cma_declare_contiguous_nid(base, size, limit, alignment,
			order_per_bit, fixed, name, res_cma, NUMA_NO_NODE);
}
extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
					unsigned int order_per_bit,
					const char *name,
					struct cma **res_cma);
extern struct page *cma_alloc(struct cma *cma, unsigned long count, unsigned int align,
			      bool no_warn);
extern bool cma_pages_valid(struct cma *cma, const struct page *pages, unsigned long count);
extern bool cma_release(struct cma *cma, const struct page *pages, unsigned long count);

extern int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data);

extern void cma_reserve_pages_on_error(struct cma *cma);
#endif