]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/linux/cma.h
4 #include <linux/init.h>
5 #include <linux/types.h>
8 * There is always at least global CMA area and a few optional
9 * areas configured in kernel .config.
11 #ifdef CONFIG_CMA_AREAS
12 #define MAX_CMA_AREAS (1 + CONFIG_CMA_AREAS)
15 #define MAX_CMA_AREAS (0)
21 extern unsigned long totalcma_pages
;
22 extern phys_addr_t
cma_get_base(const struct cma
*cma
);
23 extern unsigned long cma_get_size(const struct cma
*cma
);
25 extern int __init
cma_declare_contiguous(phys_addr_t base
,
26 phys_addr_t size
, phys_addr_t limit
,
27 phys_addr_t alignment
, unsigned int order_per_bit
,
28 bool fixed
, struct cma
**res_cma
);
29 extern int cma_init_reserved_mem(phys_addr_t base
, phys_addr_t size
,
30 unsigned int order_per_bit
,
31 struct cma
**res_cma
);
32 extern struct page
*cma_alloc(struct cma
*cma
, size_t count
, unsigned int align
);
33 extern bool cma_release(struct cma
*cma
, const struct page
*pages
, unsigned int count
);