phys_base_allocator.c File Reference

#include "phys_base_allocator.h"
#include "init/init.h"
#include "libk/stivale2.h"
#include <type.h>
#include "memory/entry.h"
#include <hal/cpu/paging.h>
#include <spinlock.h>
#include <libk/debug/debug.h>
#include <libk/serial.h>
#include <str.h>
#include <memory/memory_utils.h>

Go to the source code of this file.

Functions
size_t	__fast_phys_base_find_free_block__ (uint64_t *bitmap, size_t num_words)
static const char *	pMemoryType (uint32_t type)
	INIT (phys_base_allocator)
void *	phys_base_alloc (uint64_t block)
void *	phys_base_alloc_on_top (uint64_t block)
uint64_t	pys_base_get_free_block_count ()
void	vxPhysBaseFree (void *ptr, uint64_t size)
void	pmm_log_usage ()

Variables
uint64_t	higher_base_length_ = 0
uint64_t	usable_total = 0
uint64_t	smallest_free_entry_base = (uint64_t) -1
size_t	dma_bitmap_count = 0
uint8_t *	bitmap_base_ = 0
uint8_t *	dma_bitmap_base_ = 0
size_t	dma_bitmap_size = 0
uint64_t	metadata_count = 0
uint64_t	metadata_size = 0
struct stivale2_struct_tag_memmap *	saved_memmap_info = 0
static spinlock_t	pmm_lock = {0}

Function Documentation

__fast_phys_base_find_free_block__()

size_t __fast_phys_base_find_free_block__ ( uint64_t * bitmap, size_t num_words )

extern

INIT()

INIT

(

phys_base_allocator

)

Definition at line 53 of file phys_base_allocator.c.

References ALIGN_UP, bitmap_base_, BLOCK_SIZE, ENTRY_MMAP_USABLE, higher_base_length_, LOG_ERROR, LOG_INFO, memset(), metadata_count, metadata_size, NULL, pMemoryType(), smallest_free_entry_base, STIVALE2_MMAP_RESERVED, STIVALE2_MMAP_USABLE, and usable_total.

phys_base_alloc()

void * phys_base_alloc

(

uint64_t

block

)

Definition at line 187 of file phys_base_allocator.c.

References bitmap_base_, BLOCK_SIZE, higher_base_length_, memcopy(), NULL, pmm_lock, spin_acquire(), spin_release(), and used.

Referenced by __attribute__(), alloc_page_locked(), elf_load(), elf_mmap_got(), execve(), INIT(), mmap_handle_anonymous(), paging_create_page_directory(), syscall_brk(), vxCreateSlabCache(), vxMmap(), and vxSlabAlloc().

phys_base_alloc_on_top()

void * phys_base_alloc_on_top

(

uint64_t

block

)

Definition at line 243 of file phys_base_allocator.c.

References NULL.

pMemoryType()

static const char * pMemoryType ( uint32_t type )

static

Definition at line 28 of file phys_base_allocator.c.

References ENTRY_MMAP_ACPI_NVS, ENTRY_MMAP_ACPI_RECLAIMABLE, ENTRY_MMAP_BAD_MEMORY, ENTRY_MMAP_BOOTLOADER_RECLAIMABLE, ENTRY_MMAP_FRAMEBUFFER, ENTRY_MMAP_KERNEL_AND_MODULES, ENTRY_MMAP_RESERVED, ENTRY_MMAP_USABLE, and type.

Referenced by INIT().

pmm_log_usage()

void pmm_log_usage

(

)

Definition at line 272 of file phys_base_allocator.c.

References BLOCK_SIZE, DEBUG_LEVEL_INFO, KDEBUG, pys_base_get_free_block_count(), and usable_total.

Referenced by __attribute__().

pys_base_get_free_block_count()

uint64_t pys_base_get_free_block_count

(

)

Definition at line 250 of file phys_base_allocator.c.

References bitmap_base_, BLOCK_SIZE, count, and higher_base_length_.

Referenced by pmm_log_usage().

vxPhysBaseFree()

void vxPhysBaseFree	(	void *	ptr,
		uint64_t	size )

Definition at line 263 of file phys_base_allocator.c.

References bitmap_base_, BLOCK_SIZE, pmm_lock, ptr, size, spin_acquire(), and spin_release().

Referenced by slab_cache_destroy().

Variable Documentation

bitmap_base_

uint8_t* bitmap_base_ = 0

Definition at line 18 of file phys_base_allocator.c.

Referenced by INIT(), INIT(), phys_base_alloc(), pys_base_get_free_block_count(), and vxPhysBaseFree().

dma_bitmap_base_

uint8_t* dma_bitmap_base_ = 0

Definition at line 19 of file phys_base_allocator.c.

dma_bitmap_count

size_t dma_bitmap_count = 0

Definition at line 16 of file phys_base_allocator.c.

dma_bitmap_size

size_t dma_bitmap_size = 0

Definition at line 20 of file phys_base_allocator.c.

higher_base_length_

uint64_t higher_base_length_ = 0

Definition at line 13 of file phys_base_allocator.c.

Referenced by INIT(), phys_base_alloc(), and pys_base_get_free_block_count().

metadata_count

uint64_t metadata_count = 0

Definition at line 21 of file phys_base_allocator.c.

Referenced by INIT().

metadata_size

uint64_t metadata_size = 0

Definition at line 22 of file phys_base_allocator.c.

Referenced by INIT(), and INIT().

pmm_lock

spinlock_t pmm_lock = {0}

static

Definition at line 185 of file phys_base_allocator.c.

Referenced by phys_base_alloc(), and vxPhysBaseFree().

saved_memmap_info

struct stivale2_struct_tag_memmap* saved_memmap_info = 0

Definition at line 23 of file phys_base_allocator.c.

smallest_free_entry_base

uint64_t smallest_free_entry_base = (uint64_t) -1

Definition at line 15 of file phys_base_allocator.c.

Referenced by INIT().

usable_total

uint64_t usable_total = 0

Definition at line 14 of file phys_base_allocator.c.

Referenced by INIT(), and pmm_log_usage().