arch/x86/kernel/apic/local.h

Source file repositories/reference/linux-study-clean/arch/x86/kernel/apic/local.h

File Facts

System
Linux kernel
Corpus path
arch/x86/kernel/apic/local.h
Extension
.h
Size
2118 bytes
Lines
77
Domain
Architecture Layer
Bucket
arch/x86
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#include <linux/jump_label.h>

#include <asm/irq_vectors.h>
#include <asm/apic.h>

/* X2APIC */
u32 x2apic_get_apic_id(u32 id);

void x2apic_send_IPI_all(int vector);
void x2apic_send_IPI_allbutself(int vector);
void x2apic_send_IPI_self(int vector);
extern u32 x2apic_max_apicid;

/* IPI */

DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);

static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
					 unsigned int dest)
{
	unsigned int icr = shortcut | dest;

	switch (vector) {
	default:
		icr |= APIC_DM_FIXED | vector;
		break;
	case NMI_VECTOR:
		icr |= APIC_DM_NMI;
		break;
	}
	return icr;
}

#ifdef CONFIG_X86_X2APIC
static inline void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
{
	unsigned long cfg = __prepare_ICR(0, vector, dest);

	native_x2apic_icr_write(cfg, apicid);
}
#endif

void default_init_apic_ldr(void);

void apic_mem_wait_icr_idle(void);
u32 apic_mem_wait_icr_idle_timeout(void);

/*
 * This is used to send an IPI with no shorthand notation (the destination is
 * specified in bits 56 to 63 of the ICR).
 */
void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);

void default_send_IPI_single(int cpu, int vector);
void default_send_IPI_single_phys(int cpu, int vector);
void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector);
void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector);
void default_send_IPI_allbutself(int vector);
void default_send_IPI_all(int vector);
void default_send_IPI_self(int vector);

#ifdef CONFIG_X86_32
void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector);
void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector);
void default_send_IPI_mask_logical(const struct cpumask *mask, int vector);
#endif

Annotation

Implementation Notes