arch/mips/include/asm/kexec.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/kexec.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/kexec.h
Extension
.h
Size
1495 bytes
Lines
52
Domain
Architecture Layer
Bucket
arch/mips
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 _MIPS_KEXEC
# define _MIPS_KEXEC

#include <asm/stacktrace.h>

/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
 /* Maximum address we can use for the control code buffer */
#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
/* Reserve 3*4096 bytes for board-specific info */
#define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096)

/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_MIPS
#define MAX_NOTE_BYTES 1024

static inline void crash_setup_regs(struct pt_regs *newregs,
				    struct pt_regs *oldregs)
{
	if (oldregs)
		memcpy(newregs, oldregs, sizeof(*newregs));
	else
		prepare_frametrace(newregs);
}

#ifdef CONFIG_KEXEC_CORE
struct kimage;
extern unsigned long kexec_args[4];
extern int (*_machine_kexec_prepare)(struct kimage *);
extern void (*_machine_kexec_shutdown)(void);
extern void (*_machine_crash_shutdown)(struct pt_regs *regs);
void default_machine_crash_shutdown(struct pt_regs *regs);
void kexec_nonboot_cpu_jump(void);
void kexec_reboot(void);
#ifdef CONFIG_SMP
extern const unsigned char kexec_smp_wait[];
extern unsigned long secondary_kexec_args[4];
extern atomic_t kexec_ready_to_reboot;
extern void (*_crash_smp_send_stop)(void);
#endif
#endif

#endif /* !_MIPS_KEXEC */

Annotation

Implementation Notes