12 	struct pt_regs *regs = task->thread.regs;  in user_enable_single_step()
21 	struct pt_regs *regs = task->thread.regs;  in user_enable_block_step()
30 	struct pt_regs *regs = task->thread.regs;  in user_disable_single_step()
68 	dabr_fake = ((child->thread.hw_brk[0].address & (~HW_BRK_TYPE_DABR)) |  in ptrace_get_debugreg()
69 		     (child->thread.hw_brk[0].type & HW_BRK_TYPE_DABR));  in ptrace_get_debugreg()
82 	struct thread_struct *thread = &task->thread;  in ptrace_set_debugreg()  local
121 	bp = thread->ptrace_bps[0];  in ptrace_set_debugreg()
125 			thread->ptrace_bps[0] = NULL;  in ptrace_set_debugreg()
142 		thread->ptrace_bps[0] = bp;  in ptrace_set_debugreg()
143 		thread->hw_brk[0] = hw_brk;  in ptrace_set_debugreg()
154 	thread->ptrace_bps[0] = bp = register_user_hw_breakpoint(&attr,  in ptrace_set_debugreg()
157 		thread->ptrace_bps[0] = NULL;  in ptrace_set_debugreg()
165 	task->thread.hw_brk[0] = hw_brk;  in ptrace_set_debugreg()
170 static int find_empty_ptrace_bp(struct thread_struct *thread)  in find_empty_ptrace_bp()  argument
175 		if (!thread->ptrace_bps[i])  in find_empty_ptrace_bp()
182 static int find_empty_hw_brk(struct thread_struct *thread)  in find_empty_hw_brk()  argument
187 		if (!thread->hw_brk[i].address)  in find_empty_hw_brk()
198 	struct thread_struct *thread = &child->thread;  in ppc_set_hwdebug()  local
233 	i = find_empty_ptrace_bp(thread);  in ppc_set_hwdebug()
244 	thread->ptrace_bps[i] = bp;  in ppc_set_hwdebug()
246 		thread->ptrace_bps[i] = NULL;  in ppc_set_hwdebug()
256 	i = find_empty_hw_brk(&child->thread);  in ppc_set_hwdebug()
263 	child->thread.hw_brk[i] = brk;  in ppc_set_hwdebug()
272 	struct thread_struct *thread = &child->thread;  in ppc_del_hwdebug()  local
279 	bp = thread->ptrace_bps[data - 1];  in ppc_del_hwdebug()
282 		thread->ptrace_bps[data - 1] = NULL;  in ppc_del_hwdebug()
288 	if (!(child->thread.hw_brk[data - 1].flags & HW_BRK_FLAG_DISABLED) &&  in ppc_del_hwdebug()
289 	    child->thread.hw_brk[data - 1].address == 0)  in ppc_del_hwdebug()
292 	child->thread.hw_brk[data - 1].address = 0;  in ppc_del_hwdebug()
293 	child->thread.hw_brk[data - 1].type = 0;  in ppc_del_hwdebug()
294 	child->thread.hw_brk[data - 1].flags = 0;  in ppc_del_hwdebug()