arch/powerpc/include/asm/interrupt.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/interrupt.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/interrupt.h
Extension
.h
Size
13842 bytes
Lines
417
Domain
Architecture Layer
Bucket
arch/powerpc
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

#ifndef _ASM_POWERPC_INTERRUPT_H
#define _ASM_POWERPC_INTERRUPT_H

/* BookE/4xx */
#define INTERRUPT_CRITICAL_INPUT  0x100

/* BookE */
#define INTERRUPT_DEBUG           0xd00
#ifdef CONFIG_BOOKE
#define INTERRUPT_PERFMON         0x260
#define INTERRUPT_DOORBELL        0x280
#endif

/* BookS/4xx/8xx */
#define INTERRUPT_MACHINE_CHECK   0x200

/* BookS/8xx */
#define INTERRUPT_SYSTEM_RESET    0x100

/* BookS */
#define INTERRUPT_DATA_SEGMENT    0x380
#define INTERRUPT_INST_SEGMENT    0x480
#define INTERRUPT_TRACE           0xd00
#define INTERRUPT_H_DATA_STORAGE  0xe00
#define INTERRUPT_HMI			0xe60
#define INTERRUPT_H_FAC_UNAVAIL   0xf80
#ifdef CONFIG_PPC_BOOK3S
#define INTERRUPT_DOORBELL        0xa00
#define INTERRUPT_PERFMON         0xf00
#define INTERRUPT_ALTIVEC_UNAVAIL	0xf20
#endif

/* BookE/BookS/4xx/8xx */
#define INTERRUPT_DATA_STORAGE    0x300
#define INTERRUPT_INST_STORAGE    0x400
#define INTERRUPT_EXTERNAL		0x500
#define INTERRUPT_ALIGNMENT       0x600
#define INTERRUPT_PROGRAM         0x700
#define INTERRUPT_SYSCALL         0xc00
#define INTERRUPT_TRACE			0xd00

/* BookE/BookS/44x */
#define INTERRUPT_FP_UNAVAIL      0x800

/* BookE/BookS/44x/8xx */
#define INTERRUPT_DECREMENTER     0x900

#ifndef INTERRUPT_PERFMON
#define INTERRUPT_PERFMON         0x0
#endif

/* 8xx */
#define INTERRUPT_SOFT_EMU_8xx		0x1000
#define INTERRUPT_INST_TLB_MISS_8xx	0x1100
#define INTERRUPT_DATA_TLB_MISS_8xx	0x1200
#define INTERRUPT_INST_TLB_ERROR_8xx	0x1300
#define INTERRUPT_DATA_TLB_ERROR_8xx	0x1400
#define INTERRUPT_DATA_BREAKPOINT_8xx	0x1c00
#define INTERRUPT_INST_BREAKPOINT_8xx	0x1d00

/* 603 */
#define INTERRUPT_INST_TLB_MISS_603		0x1000
#define INTERRUPT_DATA_LOAD_TLB_MISS_603	0x1100
#define INTERRUPT_DATA_STORE_TLB_MISS_603	0x1200

#ifndef __ASSEMBLER__

#include <linux/sched/debug.h> /* for show_regs */
#include <linux/irq-entry-common.h>

#include <asm/kprobes.h>
#include <asm/runlatch.h>

#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
/*
 * WARN/BUG is handled with a program interrupt so minimise checks here to
 * avoid recursion and maximise the chance of getting the first oops handled.
 */
#define INT_SOFT_MASK_BUG_ON(regs, cond)				\
do {									\
	if ((user_mode(regs) || (TRAP(regs) != INTERRUPT_PROGRAM)))	\
		BUG_ON(cond);						\
} while (0)
#else
#define INT_SOFT_MASK_BUG_ON(regs, cond)
#endif

/*
 * Don't use noinstr here like x86, but rather add NOKPROBE_SYMBOL to each
 * function definition. The reason for this is the noinstr section is placed

Annotation

Implementation Notes