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Ignore whitespace Rev 4152 → Rev 4153

/branches/network/kernel/generic/include/mm/frame.h
38,34 → 38,82
 
#include <arch/types.h>
#include <adt/list.h>
#include <mm/buddy.h>
#include <synch/spinlock.h>
#include <mm/buddy.h>
#include <arch/mm/page.h>
#include <arch/mm/frame.h>
 
#define ONE_FRAME 0
#define TWO_FRAMES 1
#define FOUR_FRAMES 2
#define ONE_FRAME 0
#define TWO_FRAMES 1
#define FOUR_FRAMES 2
 
 
#ifdef ARCH_STACK_FRAMES
#define STACK_FRAMES ARCH_STACK_FRAMES
#define STACK_FRAMES ARCH_STACK_FRAMES
#else
#define STACK_FRAMES ONE_FRAME
#define STACK_FRAMES ONE_FRAME
#endif
 
/** Maximum number of zones in system. */
#define ZONES_MAX 16
/** Maximum number of zones in the system. */
#define ZONES_MAX 32
 
/** Convert the frame address to kernel va. */
#define FRAME_KA 0x1
typedef uint8_t frame_flags_t;
 
/** Convert the frame address to kernel VA. */
#define FRAME_KA 0x01
/** Do not panic and do not sleep on failure. */
#define FRAME_ATOMIC 0x2
#define FRAME_ATOMIC 0x02
/** Do not start reclaiming when no free memory. */
#define FRAME_NO_RECLAIM 0x4
/** Do not allocate above 4 GiB. */
#define FRAME_LOW_4_GiB 0x8
#define FRAME_NO_RECLAIM 0x04
 
typedef uint8_t zone_flags_t;
 
/** Available zone (free for allocation) */
#define ZONE_AVAILABLE 0x00
/** Zone is reserved (not available for allocation) */
#define ZONE_RESERVED 0x08
/** Zone is used by firmware (not available for allocation) */
#define ZONE_FIRMWARE 0x10
 
/** Currently there is no equivalent zone flags
for frame flags */
#define FRAME_TO_ZONE_FLAGS(frame_flags) 0
 
typedef struct {
count_t refcount; /**< Tracking of shared frames */
uint8_t buddy_order; /**< Buddy system block order */
link_t buddy_link; /**< Link to the next free block inside
one order */
void *parent; /**< If allocated by slab, this points there */
} frame_t;
 
typedef struct {
pfn_t base; /**< Frame_no of the first frame
in the frames array */
count_t count; /**< Size of zone */
count_t free_count; /**< Number of free frame_t
structures */
count_t busy_count; /**< Number of busy frame_t
structures */
zone_flags_t flags; /**< Type of the zone */
frame_t *frames; /**< Array of frame_t structures
in this zone */
buddy_system_t *buddy_system; /**< Buddy system for the zone */
} zone_t;
 
/*
* The zoneinfo.lock must be locked when accessing zoneinfo structure.
* Some of the attributes in zone_t structures are 'read-only'
*/
typedef struct {
SPINLOCK_DECLARE(lock);
count_t count;
zone_t info[ZONES_MAX];
} zones_t;
 
extern zones_t zones;
 
static inline uintptr_t PFN2ADDR(pfn_t frame)
{
return (uintptr_t) (frame << FRAME_WIDTH);
88,31 → 136,37
return (size_t) (frames << FRAME_WIDTH);
}
 
#define IS_BUDDY_ORDER_OK(index, order) \
static inline bool zone_flags_available(zone_flags_t flags)
{
return ((flags & (ZONE_RESERVED | ZONE_FIRMWARE)) == 0);
}
 
#define IS_BUDDY_ORDER_OK(index, order) \
((~(((unative_t) -1) << (order)) & (index)) == 0)
#define IS_BUDDY_LEFT_BLOCK(zone, frame) \
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
#define IS_BUDDY_LEFT_BLOCK(zone, frame) \
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x01) == 0)
#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \
(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x01) == 1)
#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x01) == 0)
#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \
(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x01) == 1)
 
#define frame_alloc(order, flags) \
#define frame_alloc(order, flags) \
frame_alloc_generic(order, flags, NULL)
 
extern void frame_init(void);
extern void *frame_alloc_generic(uint8_t, int, unsigned int *);
extern void *frame_alloc_generic(uint8_t, frame_flags_t, count_t *);
extern void frame_free(uintptr_t);
extern void frame_reference_add(pfn_t);
 
extern int zone_create(pfn_t, count_t, pfn_t, int);
extern void *frame_get_parent(pfn_t, unsigned int);
extern void frame_set_parent(pfn_t, void *, unsigned int);
extern count_t find_zone(pfn_t frame, count_t count, count_t hint);
extern count_t zone_create(pfn_t, count_t, pfn_t, zone_flags_t);
extern void *frame_get_parent(pfn_t, count_t);
extern void frame_set_parent(pfn_t, void *, count_t);
extern void frame_mark_unavailable(pfn_t, count_t);
extern uintptr_t zone_conf_size(count_t);
extern void zone_merge(unsigned int, unsigned int);
extern bool zone_merge(count_t, count_t);
extern void zone_merge_all(void);
extern uint64_t zone_total_size(void);
 
120,7 → 174,7
* Console functions
*/
extern void zone_print_list(void);
extern void zone_print_one(unsigned int);
extern void zone_print_one(count_t);
 
#endif
 
/branches/network/kernel/generic/include/mm/page.h
42,7 → 42,7
/** Operations to manipulate page mappings. */
typedef struct {
void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame,
int flags);
int flags);
void (* mapping_remove)(as_t *as, uintptr_t page);
pte_t *(* mapping_find)(as_t *as, uintptr_t page);
} page_mapping_operations_t;
59,6 → 59,7
extern pte_t *page_table_create(int flags);
extern void page_table_destroy(pte_t *page_table);
extern void map_structure(uintptr_t s, size_t size);
 
extern uintptr_t hw_map(uintptr_t physaddr, size_t size);
 
#endif
/branches/network/kernel/generic/include/mm/slab.h
59,7 → 59,7
/* slab_reclaim constants */
 
/** Reclaim all possible memory, because we are in memory stress */
#define SLAB_RECLAIM_ALL 0x1
#define SLAB_RECLAIM_ALL 0x01
 
/* cache_create flags */
 
/branches/network/kernel/generic/include/mm/buddy.h
82,7 → 82,7
extern link_t *buddy_system_alloc(buddy_system_t *, uint8_t);
extern bool buddy_system_can_alloc(buddy_system_t *, uint8_t);
extern void buddy_system_free(buddy_system_t *, link_t *);
extern size_t buddy_conf_size(int);
extern size_t buddy_conf_size(size_t);
extern link_t *buddy_system_alloc_block(buddy_system_t *, link_t *);
 
#endif