bma.h

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#ifndef __xwos_mm_bma_h__
#define __xwos_mm_bma_h__
 
#include <xwos/standard.h>
#include <xwos/lib/bclst.h>
#include <xwos/lib/xwbop.h>
#include <xwos/osal/lock/spinlock.h>
#include <xwos/mm/common.h>
 
#define XWMM_BMA_MAX_ORDER              ((xwu8_t)126) 
#define XWMM_BMA_COMBINED               ((xwu8_t)127) 
#define XWMM_BMA_ORDER_MASK             ((xwu8_t)0x7F) 
#define XWMM_BMA_INUSED                 ((xwu8_t)0x80) 
#define XWMM_BMA_ORDERLIST_SIZE(bo) sizeof(struct xwmm_bma_orderlist[(bo) + 1U])
#define XWMM_BMA_BCB_SIZE(bo) sizeof(struct xwmm_bma_bcb[1U << (bo)])
 
#define XWMM_BMA_RAWOBJ_DEF(name, blkodr) \
        xwu8_t name[sizeof(struct xwmm_bma) + \
                    XWMM_BMA_ORDERLIST_SIZE(blkodr) + XWMM_BMA_BCB_SIZE(blkodr)]
 
struct xwmm_bma_orderlist {
        struct xwlib_bclst_head head; 
};
 
struct xwmm_bma_bcb {
        xwu8_t order; 
};
 
struct xwmm_bma {
        struct xwmm_zone zone; 
        const char * name; 
        xwsz_t blksize; 
        xwsq_t blkodr; 
        struct xwos_splk lock; 
        struct xwmm_bma_orderlist * orderlists; 
        struct xwmm_bma_bcb * bcbs; 
};
 
xwer_t xwmm_bma_init(struct xwmm_bma * bma, const char * name,
                     xwptr_t origin, xwsz_t size,
                     xwsz_t blksize, xwsz_t blkodr);
 
xwer_t xwmm_bma_alloc(struct xwmm_bma * bma, xwsq_t order, void ** membuf);
 
xwer_t xwmm_bma_free(struct xwmm_bma * bma, void * mem);
 
xwer_t xwmm_bma_malloc(struct xwmm_bma * bma, xwsz_t size, void ** membuf);
 
 
xwer_t xwmm_bma_realloc(struct xwmm_bma * bma, xwsz_t size, void ** membuf);
 
xwer_t xwmm_bma_memalign(struct xwmm_bma * bma, xwsz_t alignment, xwsz_t size,
                         void ** membuf);
 
xwer_t xwmm_bma_malloc_usable_size(struct xwmm_bma * bma, void * mem, xwsz_t * size);
 
#endif /* xwos/mm/bma.h */