slab.c File Reference

#include "slab.h"
#include <type.h>
#include <libk/serial.h>
#include <str.h>
#include <hal/cpu/paging.h>
#include <spinlock.h>
#include <memory/phys_base_allocator.h>
#include <memory/memory_utils.h>

Go to the source code of this file.

Macros
#define	MAX_FREED_VADDRS   512
#define	DEFAULT_SLAB_ADDR   0xFFFFFF8080000000

Functions
static uintptr_t	get_default_slab_addr ()
static void	push_freed_vaddr (uintptr_t vaddr)
void	vxCreateSlabCache (struct slab_cache **cache, const char *name, const size_t obj_size, size_t alignment, const uintptr_t virt_addr)
void *	vxSlabAlloc (struct slab_cache *cache)
void	slab_cache_destroy (struct slab_cache **cache)
void	slab_free (struct slab_cache *cache, void *obj)

Variables
static uintptr_t	last_slab_addr = 0xFFFFFF8080000000
static spinlock_t	slab_global_lock = {0}
static uintptr_t	freed_vaddrs [512] = {0}
static size_t	freed_vaddr_count = 0

Macro Definition Documentation

DEFAULT_SLAB_ADDR

#define DEFAULT_SLAB_ADDR   0xFFFFFF8080000000

Definition at line 15 of file slab.c.

MAX_FREED_VADDRS

#define MAX_FREED_VADDRS   512

Definition at line 13 of file slab.c.

Function Documentation

get_default_slab_addr()

static uintptr_t get_default_slab_addr ( )

static

Definition at line 23 of file slab.c.

References addr, BLOCK_SIZE, freed_vaddr_count, freed_vaddrs, last_slab_addr, slab_global_lock, spin_acquire(), and spin_release().

Referenced by vxCreateSlabCache(), and vxSlabAlloc().

push_freed_vaddr()

static void push_freed_vaddr ( uintptr_t vaddr )

static

Definition at line 36 of file slab.c.

References freed_vaddr_count, freed_vaddrs, MAX_FREED_VADDRS, slab_global_lock, spin_acquire(), and spin_release().

Referenced by slab_cache_destroy().

slab_cache_destroy()

void slab_cache_destroy

(

struct slab_cache **

cache

)

Definition at line 174 of file slab.c.

References cache, next, slab::next, NULL, paging_get_highest_page_map(), paging_unmap_page(), phys_addr, slab::phys_addr, push_freed_vaddr(), spin_acquire(), spin_release(), and vxPhysBaseFree().

slab_free()

void slab_free	(	struct slab_cache *	cache,
		void *	obj )

Definition at line 235 of file slab.c.

References cache, slab::first_obj, slab::free_list, slab::free_objects, slab::next, NULL, prev, spin_acquire(), spin_release(), and slab::total_objects.

Referenced by __attribute__(), dentry_free_rcu(), free_netbuff(), and vma_tree_add_locked().

vxCreateSlabCache()

void vxCreateSlabCache	(	struct slab_cache **	cache,
		const char *	name,
		const size_t	obj_size,
		size_t	alignment,
		const uintptr_t	virt_addr )

Definition at line 44 of file slab.c.

References ALIGN_UP, alignment, BLOCK_SIZE, cache, get_default_slab_addr(), LOG_INFO, memset(), name, obj_size, paging_get_highest_page_map(), phys_addr, phys_base_alloc(), strcpy(), and vxMmap().

Referenced by __attribute__(), INIT(), INIT(), INIT(), INIT(), INIT(), INIT(), INIT(), INIT(), INIT(), and vxSocket().

vxSlabAlloc()

void * vxSlabAlloc

(

struct slab_cache *

cache

)

Definition at line 93 of file slab.c.

References actual_obj_size, BLOCK_SIZE, cache, slab::first_obj, slab::free_list, slab::free_objects, get_default_slab_addr(), LOG_ERROR, slab::magic, memset(), slab::next, NULL, paging_get_highest_page_map(), phys_addr, slab::phys_addr, phys_base_alloc(), spin_acquire(), spin_release(), slab::total_objects, and vxMmap().

Referenced by __attribute__(), create_netbuff(), create_netdev(), create_process(), create_vmm_page(), INIT(), INIT(), thrCreateInstance(), vma_register(), vma_tree_add_locked(), vxAllocScheduler(), and vxSocket().

Variable Documentation

freed_vaddr_count

size_t freed_vaddr_count = 0

static

Definition at line 21 of file slab.c.

freed_vaddrs

uintptr_t freed_vaddrs[512] = {0}

static

Definition at line 20 of file slab.c.

last_slab_addr

uintptr_t last_slab_addr = 0xFFFFFF8080000000

static

Definition at line 16 of file slab.c.

Referenced by get_default_slab_addr().

slab_global_lock

spinlock_t slab_global_lock = {0}

static

Definition at line 18 of file slab.c.

Referenced by get_default_slab_addr(), and push_freed_vaddr().