| 41,19 → 41,19 |
|---|
| #include <mm/frame.h> |
| |
| /** Minimum size to be allocated by malloc */ |
| #define SLAB_MIN_MALLOC_W 4 |
| #define SLAB_MIN_MALLOC_W 4 |
| |
| /** Maximum size to be allocated by malloc */ |
| #define SLAB_MAX_MALLOC_W 18 |
| #define SLAB_MAX_MALLOC_W 22 |
| |
| /** Initial Magazine size (TODO: dynamically growing magazines) */ |
| #define SLAB_MAG_SIZE 4 |
| |
| /** If object size is less, store control structure inside SLAB */ |
| #define SLAB_INSIDE_SIZE (PAGE_SIZE >> 3) |
| #define SLAB_INSIDE_SIZE (PAGE_SIZE >> 3) |
| |
| /** Maximum wasted space we allow for cache */ |
| #define SLAB_MAX_BADNESS(cache) \ |
| #define SLAB_MAX_BADNESS(cache) \ |
| (((unsigned int) PAGE_SIZE << (cache)->order) >> 2) |
| |
| /* slab_reclaim constants */ |
| 64,17 → 64,17 |
|---|
| /* cache_create flags */ |
| |
| /** 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) |
| |
| 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; |
| |
| typedef struct { |
| 86,23 → 86,23 |
|---|
| |
| typedef struct { |
| char *name; |
| |
| |
| link_t link; |
| |
| |
| /* Configuration */ |
| /** Size of slab position - align_up(sizeof(obj)) */ |
| size_t size; |
| |
| |
| int (*constructor)(void *obj, int kmflag); |
| int (*destructor)(void *obj); |
| |
| |
| /** Flags changing behaviour of cache */ |
| int flags; |
| |
| |
| /* Computed values */ |
| uint8_t order; /**< Order of frames to be allocated */ |
| unsigned int objects; /**< Number of objects that fit in */ |
| |
| uint8_t order; /**< Order of frames to be allocated */ |
| unsigned int objects; /**< Number of objects that fit in */ |
| |
| /* 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; |
| |
| |
| /* 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); |
| |
| |
| /** 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 *); |
| |
| #endif |
| |
| /** @} |