12 	struct pt_regs *regs = task->thread.regs;  in user_enable_single_step()
23 	struct pt_regs *regs = task->thread.regs;  in user_enable_block_step()
34 	struct pt_regs *regs = task->thread.regs;  in user_disable_single_step()
72 	dabr_fake = ((child->thread.hw_brk[0].address & (~HW_BRK_TYPE_DABR)) |  in ptrace_get_debugreg()
73 		     (child->thread.hw_brk[0].type & HW_BRK_TYPE_DABR));  in ptrace_get_debugreg()
86 	struct thread_struct *thread = &task->thread;  in ptrace_set_debugreg()  local
125 	bp = thread->ptrace_bps[0];  in ptrace_set_debugreg()
129 			thread->ptrace_bps[0] = NULL;  in ptrace_set_debugreg()
146 		thread->ptrace_bps[0] = bp;  in ptrace_set_debugreg()
147 		thread->hw_brk[0] = hw_brk;  in ptrace_set_debugreg()
158 	thread->ptrace_bps[0] = bp = register_user_hw_breakpoint(&attr,  in ptrace_set_debugreg()
161 		thread->ptrace_bps[0] = NULL;  in ptrace_set_debugreg()
169 	task->thread.hw_brk[0] = hw_brk;  in ptrace_set_debugreg()
174 static int find_empty_ptrace_bp(struct thread_struct *thread)  in find_empty_ptrace_bp()  argument
179 		if (!thread->ptrace_bps[i])  in find_empty_ptrace_bp()
186 static int find_empty_hw_brk(struct thread_struct *thread)  in find_empty_hw_brk()  argument
191 		if (!thread->hw_brk[i].address)  in find_empty_hw_brk()
202 	struct thread_struct *thread = &child->thread;  in ppc_set_hwdebug()  local
237 	i = find_empty_ptrace_bp(thread);  in ppc_set_hwdebug()
248 	thread->ptrace_bps[i] = bp;  in ppc_set_hwdebug()
250 		thread->ptrace_bps[i] = NULL;  in ppc_set_hwdebug()
260 	i = find_empty_hw_brk(&child->thread);  in ppc_set_hwdebug()
267 	child->thread.hw_brk[i] = brk;  in ppc_set_hwdebug()
276 	struct thread_struct *thread = &child->thread;  in ppc_del_hwdebug()  local
283 	bp = thread->ptrace_bps[data - 1];  in ppc_del_hwdebug()
286 		thread->ptrace_bps[data - 1] = NULL;  in ppc_del_hwdebug()
292 	if (!(child->thread.hw_brk[data - 1].flags & HW_BRK_FLAG_DISABLED) &&  in ppc_del_hwdebug()
293 	    child->thread.hw_brk[data - 1].address == 0)  in ppc_del_hwdebug()
296 	child->thread.hw_brk[data - 1].address = 0;  in ppc_del_hwdebug()
297 	child->thread.hw_brk[data - 1].type = 0;  in ppc_del_hwdebug()
298 	child->thread.hw_brk[data - 1].flags = 0;  in ppc_del_hwdebug()