| /* |
| * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
| * Licensed under the GPL |
| */ |
| |
| #ifndef __UM_PROCESSOR_GENERIC_H |
| #define __UM_PROCESSOR_GENERIC_H |
| |
| struct pt_regs; |
| |
| struct task_struct; |
| |
| #include <asm/ptrace.h> |
| #include <registers.h> |
| #include <sysdep/archsetjmp.h> |
| |
| #include <linux/prefetch.h> |
| |
| struct mm_struct; |
| |
| struct thread_struct { |
| struct task_struct *saved_task; |
| struct pt_regs regs; |
| int singlestep_syscall; |
| void *fault_addr; |
| jmp_buf *fault_catcher; |
| struct task_struct *prev_sched; |
| unsigned long temp_stack; |
| jmp_buf *exec_buf; |
| struct arch_thread arch; |
| jmp_buf switch_buf; |
| int mm_count; |
| 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, \ |
| .temp_stack = 0, \ |
| .exec_buf = NULL, \ |
| .arch = INIT_ARCH_THREAD, \ |
| .request = { 0 } \ |
| } |
| |
| static inline void release_thread(struct task_struct *task) |
| { |
| } |
| |
| extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); |
| |
| extern unsigned long thread_saved_pc(struct task_struct *t); |
| |
| static inline void mm_copy_segments(struct mm_struct *from_mm, |
| struct mm_struct *new_mm) |
| { |
| } |
| |
| #define init_stack (init_thread_union.stack) |
| |
| /* |
| * 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]; |
| }; |
| |
| extern struct cpuinfo_um boot_cpu_data; |
| |
| #define my_cpu_data cpu_data[smp_processor_id()] |
| |
| #ifdef CONFIG_SMP |
| extern struct cpuinfo_um cpu_data[]; |
| #define current_cpu_data cpu_data[smp_processor_id()] |
| #else |
| #define cpu_data (&boot_cpu_data) |
| #define current_cpu_data boot_cpu_data |
| #endif |
| |
| |
| #define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) |
| extern unsigned long get_wchan(struct task_struct *p); |
| |
| #endif |