41,19 → 41,19 |
#include <mm/frame.h> |
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/** Minimum size to be allocated by malloc */ |
#define SLAB_MIN_MALLOC_W 4 |
#define SLAB_MIN_MALLOC_W 4 |
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/** Maximum size to be allocated by malloc */ |
#define SLAB_MAX_MALLOC_W 18 |
#define SLAB_MAX_MALLOC_W 22 |
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/** Initial Magazine size (TODO: dynamically growing magazines) */ |
#define SLAB_MAG_SIZE 4 |
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/** If object size is less, store control structure inside SLAB */ |
#define SLAB_INSIDE_SIZE (PAGE_SIZE >> 3) |
#define SLAB_INSIDE_SIZE (PAGE_SIZE >> 3) |
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/** Maximum wasted space we allow for cache */ |
#define SLAB_MAX_BADNESS(cache) \ |
#define SLAB_MAX_BADNESS(cache) \ |
(((unsigned int) PAGE_SIZE << (cache)->order) >> 2) |
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/* slab_reclaim constants */ |
64,17 → 64,17 |
/* cache_create flags */ |
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/** Do not use per-cpu cache */ |
#define SLAB_CACHE_NOMAGAZINE 0x1 |
#define SLAB_CACHE_NOMAGAZINE 0x01 |
/** Have control structure inside SLAB */ |
#define SLAB_CACHE_SLINSIDE 0x2 |
#define SLAB_CACHE_SLINSIDE 0x02 |
/** We add magazine cache later, if we have this flag */ |
#define SLAB_CACHE_MAGDEFERRED (0x4 | SLAB_CACHE_NOMAGAZINE) |
#define SLAB_CACHE_MAGDEFERRED (0x04 | SLAB_CACHE_NOMAGAZINE) |
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typedef struct { |
link_t link; |
count_t busy; /**< Count of full slots in magazine */ |
count_t size; /**< Number of slots in magazine */ |
void *objs[]; /**< Slots in magazine */ |
count_t busy; /**< Count of full slots in magazine */ |
count_t size; /**< Number of slots in magazine */ |
void *objs[]; /**< Slots in magazine */ |
} slab_magazine_t; |
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typedef struct { |
86,23 → 86,23 |
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typedef struct { |
char *name; |
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link_t link; |
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/* Configuration */ |
/** Size of slab position - align_up(sizeof(obj)) */ |
size_t size; |
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int (*constructor)(void *obj, int kmflag); |
int (*destructor)(void *obj); |
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/** Flags changing behaviour of cache */ |
int flags; |
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/* Computed values */ |
uint8_t order; /**< Order of frames to be allocated */ |
unsigned int objects; /**< Number of objects that fit in */ |
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uint8_t order; /**< Order of frames to be allocated */ |
unsigned int objects; /**< Number of objects that fit in */ |
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/* Statistics */ |
atomic_t allocated_slabs; |
atomic_t allocated_objs; |
109,15 → 109,15 |
atomic_t cached_objs; |
/** How many magazines in magazines list */ |
atomic_t magazine_counter; |
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/* Slabs */ |
link_t full_slabs; /**< List of full slabs */ |
link_t partial_slabs; /**< List of partial slabs */ |
link_t full_slabs; /**< List of full slabs */ |
link_t partial_slabs; /**< List of partial slabs */ |
SPINLOCK_DECLARE(slablock); |
/* Magazines */ |
link_t magazines; /**< List o full magazines */ |
/* Magazines */ |
link_t magazines; /**< List o full magazines */ |
SPINLOCK_DECLARE(maglock); |
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/** CPU cache */ |
slab_mag_cache_t *mag_cache; |
} slab_cache_t; |
141,6 → 141,7 |
extern void *malloc(unsigned int, int); |
extern void *realloc(void *, unsigned int, int); |
extern void free(void *); |
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#endif |
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/** @} |