5  *	Gareth Hughes <gareth@valinux.com>, May 2000
9  * This file handles the architecture-dependent parts of process handling..
70 	printk("%sEAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",  in __show_regs()
71 		log_lvl, regs->ax, regs->bx, regs->cx, regs->dx);  in __show_regs()
73 		log_lvl, regs->si, regs->di, regs->bp, regs->sp);  in __show_regs()
75 	       log_lvl, (u16)regs->ds, (u16)regs->es, (u16)regs->fs, gs, regs->ss, regs->flags);  in __show_regs()
94 	/* Only print out debug registers if they are in their non-default state. */  in __show_regs()
107 	BUG_ON(dead_task->mm);  in release_thread()
115 	regs->fs		= 0;  in start_thread()
116 	regs->ds		= __USER_DS;  in start_thread()
117 	regs->es		= __USER_DS;  in start_thread()
118 	regs->ss		= __USER_DS;  in start_thread()
119 	regs->cs		= __USER_CS;  in start_thread()
120 	regs->ip		= new_ip;  in start_thread()
121 	regs->sp		= new_sp;  in start_thread()
122 	regs->flags		= X86_EFLAGS_IF;  in start_thread()
140  * hardware task-switch, there is no way to fix up bad state in
143  * The fact that Intel documents the hardware task-switching to
144  * be slow is a fairly red herring - this code is not noticeably
151  * the task-switch, and shows up in ret_from_fork in entry.S,
157 	struct thread_struct *prev = &prev_p->thread,  in __switch_to()
158 			     *next = &next_p->thread;  in __switch_to()
159 	struct fpu *prev_fpu = &prev->fpu;  in __switch_to()
172 	 * where we temporarily have non-reloadable segments in %fs  in __switch_to()
177 	savesegment(gs, prev->gs);  in __switch_to()
180 	 * Load the per-thread Thread-Local Storage descriptor.  in __switch_to()
207 	if (prev->gs | next->gs)  in __switch_to()
208 		loadsegment(gs, next->gs);  in __switch_to()