percpu.c File Reference

#include <kernel/cpu/percpu.h>
#include <kernel/cpu/cpu.h>
#include <kernel/log/panic.h>
#include <kernel/mem/vmm.h>
#include <kernel/sync/lock.h>
#include <string.h>

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Data Structures
struct	percpu_section_t

Macros
#define	PERCPU_MAX_SECTIONS   128

Functions
static	BITMAP_CREATE_ZERO (allocated, CONFIG_PERCPU_SIZE/PERCPU_ALIGNMENT)
static	PERCPU_DEFINE (uint64_t, pcpu_generation)
static	PERCPU_DEFINE (uint64_t, pcpu_ack)
void	percpu_init (cpu_t *cpu)
	Initialize the percpu system.
percpu_t	percpu_alloc (size_t size)
	Allocates a percpu variable.
void	percpu_free (percpu_t ptr, size_t size)
	Frees a percpu variable.
static void	percpu_run_ctors (percpu_section_t *section)
static void	percpu_run_dtors (percpu_section_t *section)
void	percpu_update (void)
	Update percpu sections on the current CPU.
void	percpu_section_init (percpu_def_t *start, percpu_def_t *end)
	Register a percpu section and run constructors.
void	percpu_section_deinit (percpu_def_t *start, percpu_def_t *end)
	Unregister a percpu section and run destructors.

Variables
static percpu_section_t	sections [PERCPU_MAX_SECTIONS]
	We cant do memory allocation during early boot so we have to statically allocate the percpu sections.
static size_t	sectionCount = 0
static uint64_t	globalGeneration = 0
static uint64_t	globalAck = 0
static lock_t	lock = LOCK_CREATE()

Macro Definition Documentation

PERCPU_MAX_SECTIONS

#define PERCPU_MAX_SECTIONS   128

Definition at line 9 of file percpu.c.

Function Documentation

BITMAP_CREATE_ZERO()

static BITMAP_CREATE_ZERO ( allocated  , CONFIG_PERCPU_SIZE/  PERCPU_ALIGNMENT  )

static

PERCPU_DEFINE() [1/2]

static PERCPU_DEFINE ( uint64_t  , pcpu_generation    )

static

PERCPU_DEFINE() [2/2]

static PERCPU_DEFINE ( uint64_t  , pcpu_ack    )

static

percpu_run_ctors()

static void percpu_run_ctors ( percpu_section_t *  section )

static

Definition at line 77 of file percpu.c.

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percpu_run_dtors()

static void percpu_run_dtors ( percpu_section_t *  section )

static

Definition at line 88 of file percpu.c.

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Variable Documentation

sections

percpu_section_t sections[PERCPU_MAX_SECTIONS]

static

We cant do memory allocation during early boot so we have to statically allocate the percpu sections.

Definition at line 22 of file percpu.c.

sectionCount

size_t sectionCount = 0

static

Definition at line 23 of file percpu.c.

globalGeneration

uint64_t globalGeneration = 0

static

Definition at line 25 of file percpu.c.

globalAck

uint64_t globalAck = 0

static

Definition at line 26 of file percpu.c.

lock

lock_t lock = LOCK_CREATE()

static

Definition at line 31 of file percpu.c.