cpu.h File Reference

#include <kernel/config.h>
#include <kernel/cpu/interrupt.h>
#include <kernel/cpu/ipi.h>
#include <kernel/cpu/tss.h>
#include <kernel/defs.h>
#include <kernel/drivers/perf.h>
#include <kernel/drivers/rand.h>
#include <kernel/mem/vmm.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/timer.h>
#include <kernel/sched/wait.h>
#include <kernel/utils/map.h>
#include <stdatomic.h>
#include <stdint.h>
#include <sys/bitmap.h>
#include <sys/list.h>

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Data Structures
struct	cpu_event_t
	CPU event structure. More...
struct	cpu_handler_t
struct	cpu_t
	CPU structure. More...

Macros
#define	CPU_MAX   (UINT8_MAX + 1)
	Maximum number of CPUs supported.
#define	CPU_ID_BOOTSTRAP   0
	ID of the bootstrap CPU.
#define	CPU_ID_INVALID   UINT16_MAX
	Invalid CPU ID.
#define	CPU_STACK_CANARY   0x1234567890ABCDEFULL
	CPU stack canary value.
#define	CPU_MAX_EVENT_HANDLERS   32
	Maximum number of CPU event handlers that can be registered.
#define	CPU_FOR_EACH(cpu)
	Macro to iterate over all CPUs.

Typedefs
typedef uint16_t	cpuid_t
	Type used to identify a CPU.
typedef void(*	cpu_func_t) (cpu_t *cpu, const cpu_event_t *event)
	CPU event function type.

Enumerations
enum	cpu_event_type_t { CPU_ONLINE , CPU_OFFLINE }
	CPU event types. More...

Functions
void	cpu_init_early (cpu_t *cpu)
	Only initialize the parts of the CPU structure needed for early boot.
void	cpu_init (cpu_t *cpu)
	Initializes the CPU represented by the cpu_t structure.
uint64_t	cpu_handler_register (cpu_func_t func)
	Registers a CPU event handler for all CPUs.
void	cpu_handler_unregister (cpu_func_t func)
	Unregisters a previously registered CPU event handler.
void	cpu_handlers_check (cpu_t *cpu)
	Checks if any handlers have been registered since the last check, and invokes them if so.
void	cpu_stacks_overflow_check (cpu_t *cpu)
	Checks for CPU stack overflows.
uint64_t	cpu_halt_others (void)
	Halts all other CPUs.
static uint16_t	cpu_amount (void)
	Gets the number of identified CPUs.
static cpu_t *	cpu_get_by_id (cpuid_t id)
	Gets a CPU structure by its ID.
static cpu_t *	cpu_get (void)
	Gets the current CPU structure.
static void	cpu_put (void)
	Releases the current CPU structure.
static cpu_t *	cpu_get_unsafe (void)
	Gets the current CPU structure without disabling interrupts.
static cpuid_t	cpu_get_id_unsafe (void)
	Gets the current CPU ID.
static cpu_t *	cpu_get_next (cpu_t *current)
	Gets the next CPU in the CPU array.

Variables
cpu_t *	_cpus [CPU_MAX]
	Array of pointers to cpu_t structures for each CPU, indexed by CPU ID.
uint16_t	_cpuAmount
	The number of CPUs currently identified.