Virtual address allocator

include/mem/vaddr_alloc.h

struct vas_range

struct vas_range {
    vaddr_t           start;
    size_t            length;
    struct rbt_node   node;
    struct list_head  free_list_node;
};

struct vas_range referenced types:

• vaddr_t
• struct rbt_node
• struct list_head

struct vasrange_page_hdr

struct vasrange_page_hdr {
    uint16_t          free_count;
    uint16_t          total;
    struct list_head  page_list;
};

struct vasrange_page_hdr referenced types:

• struct list_head

struct vas_local_tree

struct vas_local_tree {
    struct spinlock   lock;
    struct rbt        tree;
    struct list_head  freelist;
    struct list_head  fl_pages;
    size_t            total_free;
};

struct vas_local_tree referenced types:

• struct spinlock
• struct rbt
• struct list_head

struct vas_space

struct vas_space {
    struct vas_local_tree  global;
    vaddr_t                base;
    vaddr_t                limit;
    size_t                 chunk_size;
    struct vas_local_tree  *local;
};

struct vas_space referenced types:

• struct vas_local_tree
• vaddr_t

vas_space_bootstrap

struct vas_space * vas_space_bootstrap(vaddr_t base, vaddr_t limit);

vas_space_bootstrap referenced types:

• struct vas_space
• vaddr_t

vas_space_create

struct vas_space * vas_space_create(vaddr_t base, vaddr_t limit);

vas_space_create referenced types:

• struct vas_space
• vaddr_t

vas_space_from_address_range

struct vas_space * vas_space_from_address_range(struct address_range *ar);

vas_space_from_address_range referenced types:

• struct vas_space
• struct address_range

vas_alloc

vaddr_t vas_alloc(struct vas_space *vas, size_t size, size_t align);

vas_alloc referenced types:

• vaddr_t
• struct vas_space

vas_free

void vas_free(struct vas_space *vas, vaddr_t addr, size_t size);

vas_free referenced types:

• struct vas_space
• vaddr_t

vas_map

void * vas_map(struct vas_space *vas, paddr_t paddr, size_t len, uint64_t flags, enum vmm_flags vflags);

vas_map referenced types:

• struct vas_space
• paddr_t
• enum vmm_flags

vas_unmap

void vas_unmap(struct vas_space *vas, void *vaddr, size_t len);

vas_unmap referenced types:

• struct vas_space

vas_reclaim_freelist_pages

void vas_reclaim_freelist_pages(struct vas_local_tree *lt);

vas_reclaim_freelist_pages referenced types:

• struct vas_local_tree

Defines

VAS_CHUNK_SIZE

#define VAS_CHUNK_SIZE PAGE_1GB

VAS_REFILL_THRESHOLD

#define VAS_REFILL_THRESHOLD (VAS_CHUNK_SIZE / 4)

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