103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __UM_PROCESSOR_GENERIC_H
|
||
|
|
#define __UM_PROCESSOR_GENERIC_H
|
||
|
|
|
||
|
|
struct pt_regs;
|
||
|
|
|
||
|
|
struct task_struct;
|
||
|
|
|
||
|
|
#include <asm/ptrace.h>
|
||
|
|
#include <sysdep/archsetjmp.h>
|
||
|
|
|
||
|
|
#include <linux/prefetch.h>
|
||
|
|
|
||
|
|
#include <asm/cpufeatures.h>
|
||
|
|
|
||
|
|
struct mm_struct;
|
||
|
|
|
||
|
|
struct thread_struct {
|
||
|
|
struct pt_regs regs;
|
||
|
|
struct pt_regs *segv_regs;
|
||
|
|
int singlestep_syscall;
|
||
|
|
void *fault_addr;
|
||
|
|
jmp_buf *fault_catcher;
|
||
|
|
struct task_struct *prev_sched;
|
||
|
|
struct arch_thread arch;
|
||
|
|
jmp_buf switch_buf;
|
||
|
|
struct {
|
||
|
|
int op;
|
||
|
|
union {
|
||
|
|
struct {
|
||
|
|
int pid;
|
||
|
|
} fork, exec;
|
||
|
|
struct {
|
||
|
|
int (*proc)(void *);
|
||
|
|
void *arg;
|
||
|
|
} thread;
|
||
|
|
struct {
|
||
|
|
void (*proc)(void *);
|
||
|
|
void *arg;
|
||
|
|
} cb;
|
||
|
|
} u;
|
||
|
|
} request;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define INIT_THREAD \
|
||
|
|
{ \
|
||
|
|
.regs = EMPTY_REGS, \
|
||
|
|
.fault_addr = NULL, \
|
||
|
|
.prev_sched = NULL, \
|
||
|
|
.arch = INIT_ARCH_THREAD, \
|
||
|
|
.request = { 0 } \
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* User space process size: 3GB (default).
|
||
|
|
*/
|
||
|
|
extern unsigned long task_size;
|
||
|
|
|
||
|
|
#define TASK_SIZE (task_size)
|
||
|
|
|
||
|
|
#undef STACK_TOP
|
||
|
|
#undef STACK_TOP_MAX
|
||
|
|
|
||
|
|
extern unsigned long stacksizelim;
|
||
|
|
|
||
|
|
#define STACK_ROOM (stacksizelim)
|
||
|
|
#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
|
||
|
|
#define STACK_TOP_MAX STACK_TOP
|
||
|
|
|
||
|
|
/* This decides where the kernel will search for a free chunk of vm
|
||
|
|
* space during mmap's.
|
||
|
|
*/
|
||
|
|
#define TASK_UNMAPPED_BASE (0x40000000)
|
||
|
|
|
||
|
|
extern void start_thread(struct pt_regs *regs, unsigned long entry,
|
||
|
|
unsigned long stack);
|
||
|
|
|
||
|
|
struct cpuinfo_um {
|
||
|
|
unsigned long loops_per_jiffy;
|
||
|
|
int ipi_pipe[2];
|
||
|
|
int cache_alignment;
|
||
|
|
union {
|
||
|
|
__u32 x86_capability[NCAPINTS + NBUGINTS];
|
||
|
|
unsigned long x86_capability_alignment;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct cpuinfo_um boot_cpu_data;
|
||
|
|
|
||
|
|
#define cpu_data(cpu) boot_cpu_data
|
||
|
|
#define current_cpu_data boot_cpu_data
|
||
|
|
#define cache_line_size() (boot_cpu_data.cache_alignment)
|
||
|
|
|
||
|
|
extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
|
||
|
|
#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf)
|
||
|
|
extern unsigned long __get_wchan(struct task_struct *p);
|
||
|
|
|
||
|
|
#endif
|