projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a254129e JK |
1 | #ifndef __CMA_H__ |
| 2 | #define __CMA_H__ | |
| 3 | ||
| 4 | /* | |
| 5 | * There is always at least global CMA area and a few optional | |
| 6 | * areas configured in kernel .config. | |
| 7 | */ | |
| 8 | #ifdef CONFIG_CMA_AREAS | |
| 9 | #define MAX_CMA_AREAS (1 + CONFIG_CMA_AREAS) | |
| 10 | ||
| 11 | #else | |
| 12 | #define MAX_CMA_AREAS (0) | |
| 13 | ||
| 14 | #endif | |
| 15 | ||
| 16 | struct cma; | |
| 17 | ||
| e48322ab | 18 | extern unsigned long totalcma_pages; |
| a254129e JK |
19 | extern phys_addr_t cma_get_base(struct cma *cma); |
| 20 | extern unsigned long cma_get_size(struct cma *cma); | |
| 21 | ||
| dda02fd6 WY |
22 | extern int __init cma_declare_contiguous(phys_addr_t base, |
| 23 | phys_addr_t size, phys_addr_t limit, | |
| a254129e | 24 | phys_addr_t alignment, unsigned int order_per_bit, |
| c1f733aa | 25 | bool fixed, struct cma **res_cma); |
| dda02fd6 WY |
26 | extern int cma_init_reserved_mem(phys_addr_t base, |
| 27 | phys_addr_t size, int order_per_bit, | |
| de9e14ee | 28 | struct cma **res_cma); |
| a254129e JK |
29 | extern struct page *cma_alloc(struct cma *cma, int count, unsigned int align); |
| 30 | extern bool cma_release(struct cma *cma, struct page *pages, int count); | |
| 31 | #endif |