frame.c File Reference

Physical frame allocator. More...

Include dependency graph for frame.c:

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Data Structures
struct	frame_t
struct	zone_t
Functions
static index_t	frame_index (zone_t *zone, frame_t *frame)
static index_t	frame_index_abs (zone_t *zone, frame_t *frame)
static int	frame_index_valid (zone_t *zone, index_t index)
static index_t	make_frame_index (zone_t *zone, frame_t *frame)
static void	frame_initialize (frame_t *frame)
static int	zones_add_zone (zone_t *newzone)
static zone_t *	find_zone_and_lock (pfn_t frame, int *pzone)
static int	zone_can_alloc (zone_t *z, __u8 order)
static zone_t *	find_free_zone_lock (__u8 order, int *pzone)
static link_t *	zone_buddy_find_block (buddy_system_t *b, link_t *child, __u8 order)
static void	zone_buddy_print_id (buddy_system_t *b, link_t *block)
static link_t *	zone_buddy_find_buddy (buddy_system_t *b, link_t *block)
static link_t *	zone_buddy_bisect (buddy_system_t *b, link_t *block)
static link_t *	zone_buddy_coalesce (buddy_system_t *b, link_t *block_1, link_t *block_2)
static void	zone_buddy_set_order (buddy_system_t *b, link_t *block, __u8 order)
static __u8	zone_buddy_get_order (buddy_system_t *b, link_t *block)
static void	zone_buddy_mark_busy (buddy_system_t *b, link_t *block)
static void	zone_buddy_mark_available (buddy_system_t *b, link_t *block)
static pfn_t	zone_frame_alloc (zone_t *zone, __u8 order)
static void	zone_frame_free (zone_t *zone, index_t frame_idx)
static frame_t *	zone_get_frame (zone_t *zone, index_t frame_idx)
static void	zone_mark_unavailable (zone_t *zone, index_t frame_idx)
static void	_zone_merge (zone_t *z, zone_t *z1, zone_t *z2)
static void	return_config_frames (zone_t *newzone, zone_t *oldzone)
static void	zone_reduce_region (zone_t *zone, pfn_t frame_idx, count_t count)
void	zone_merge (int z1, int z2)
void	zone_merge_all (void)
static void	zone_construct (pfn_t start, count_t count, zone_t *z, int flags)
__address	zone_conf_size (count_t count)
int	zone_create (pfn_t start, count_t count, pfn_t confframe, int flags)
void	frame_set_parent (pfn_t frame, void *data, int hint)
void *	frame_get_parent (pfn_t frame, int hint)
pfn_t	frame_alloc_generic (__u8 order, int flags, int *status, int *pzone)
void	frame_free (pfn_t pfn)
void	frame_reference_add (pfn_t pfn)
void	frame_mark_unavailable (pfn_t start, count_t count)
void	frame_init (void)
void	zone_print_list (void)
void	zone_print_one (int znum)
Variables
struct {
	SPINLOCK_DECLARE (lock)
const char *   name
iroutine   f
int   count
zone_t *   info [ZONES_MAX]
}	zones
static struct buddy_system_operations	zone_buddy_system_operations

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Detailed Description

This file contains the physical frame allocator and memory zone management. The frame allocator is built on top of the buddy allocator.

See also:

buddy.c

Definition in file frame.c.

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Variable Documentation

int count

Definition at line 97 of file frame.c. Referenced by anon_share(), elf_share(), kcpulb(), printf_putstr(), tlb_shootdown_ipi_recv(), zone_get_frame(), and zone_merge_all().

zone_t* info[ZONES_MAX]

Definition at line 98 of file frame.c. Referenced by cpu_arch_init(), cpu_identify(), and cpuid().

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