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