892 static int s390_regs_get(struct task_struct *target,  in s390_regs_get()  argument
897 	if (target == current)  in s390_regs_get()
898 		save_access_regs(target->thread.acrs);  in s390_regs_get()
903 			*k++ = __peek_user(target, pos);  in s390_regs_get()
910 			if (__put_user(__peek_user(target, pos), u++))  in s390_regs_get()
919 static int s390_regs_set(struct task_struct *target,  in s390_regs_set()  argument
926 	if (target == current)  in s390_regs_set()
927 		save_access_regs(target->thread.acrs);  in s390_regs_set()
932 			rc = __poke_user(target, pos, *k++);  in s390_regs_set()
943 			rc = __poke_user(target, pos, word);  in s390_regs_set()
949 	if (rc == 0 && target == current)  in s390_regs_set()
950 		restore_access_regs(target->thread.acrs);  in s390_regs_set()
955 static int s390_fpregs_get(struct task_struct *target,  in s390_fpregs_get()  argument
961 	if (target == current)  in s390_fpregs_get()
964 	fp_regs.fpc = target->thread.fpu.fpc;  in s390_fpregs_get()
965 	fpregs_store(&fp_regs, &target->thread.fpu);  in s390_fpregs_get()
971 static int s390_fpregs_set(struct task_struct *target,  in s390_fpregs_set()  argument
979 	if (target == current)  in s390_fpregs_set()
983 		convert_vx_to_fp(fprs, target->thread.fpu.vxrs);  in s390_fpregs_set()
985 		memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));  in s390_fpregs_set()
989 		u32 ufpc[2] = { target->thread.fpu.fpc, 0 };  in s390_fpregs_set()
996 		target->thread.fpu.fpc = ufpc[0];  in s390_fpregs_set()
1006 		convert_fp_to_vx(target->thread.fpu.vxrs, fprs);  in s390_fpregs_set()
1008 		memcpy(target->thread.fpu.fprs, &fprs, sizeof(fprs));  in s390_fpregs_set()
1013 static int s390_last_break_get(struct task_struct *target,  in s390_last_break_get()  argument
1021 			*k = target->thread.last_break;  in s390_last_break_get()
1024 			if (__put_user(target->thread.last_break, u))  in s390_last_break_get()
1031 static int s390_last_break_set(struct task_struct *target,  in s390_last_break_set()  argument
1039 static int s390_tdb_get(struct task_struct *target,  in s390_tdb_get()  argument
1044 	struct pt_regs *regs = task_pt_regs(target);  in s390_tdb_get()
1049 	data = target->thread.trap_tdb;  in s390_tdb_get()
1053 static int s390_tdb_set(struct task_struct *target,  in s390_tdb_set()  argument
1061 static int s390_vxrs_low_get(struct task_struct *target,  in s390_vxrs_low_get()  argument
1071 	if (target == current)  in s390_vxrs_low_get()
1074 		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);  in s390_vxrs_low_get()
1078 static int s390_vxrs_low_set(struct task_struct *target,  in s390_vxrs_low_set()  argument
1088 	if (target == current)  in s390_vxrs_low_set()
1092 		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);  in s390_vxrs_low_set()
1097 			*((__u64 *)(target->thread.fpu.vxrs + i) + 1) = vxrs[i];  in s390_vxrs_low_set()
1102 static int s390_vxrs_high_get(struct task_struct *target,  in s390_vxrs_high_get()  argument
1111 	if (target == current)  in s390_vxrs_high_get()
1113 	memcpy(vxrs, target->thread.fpu.vxrs + __NUM_VXRS_LOW, sizeof(vxrs));  in s390_vxrs_high_get()
1118 static int s390_vxrs_high_set(struct task_struct *target,  in s390_vxrs_high_set()  argument
1127 	if (target == current)  in s390_vxrs_high_set()
1131 				target->thread.fpu.vxrs + __NUM_VXRS_LOW, 0, -1);  in s390_vxrs_high_set()
1135 static int s390_system_call_get(struct task_struct *target,  in s390_system_call_get()  argument
1140 	unsigned int *data = &target->thread.system_call;  in s390_system_call_get()
1145 static int s390_system_call_set(struct task_struct *target,  in s390_system_call_set()  argument
1150 	unsigned int *data = &target->thread.system_call;  in s390_system_call_set()
1155 static int s390_gs_cb_get(struct task_struct *target,  in s390_gs_cb_get()  argument
1160 	struct gs_cb *data = target->thread.gs_cb;  in s390_gs_cb_get()
1166 	if (target == current)  in s390_gs_cb_get()
1172 static int s390_gs_cb_set(struct task_struct *target,  in s390_gs_cb_set()  argument
1182 	if (!target->thread.gs_cb) {  in s390_gs_cb_set()
1187 	if (!target->thread.gs_cb)  in s390_gs_cb_set()
1189 	else if (target == current)  in s390_gs_cb_set()
1192 		gs_cb = *target->thread.gs_cb;  in s390_gs_cb_set()
1200 	if (!target->thread.gs_cb)  in s390_gs_cb_set()
1201 		target->thread.gs_cb = data;  in s390_gs_cb_set()
1202 	*target->thread.gs_cb = gs_cb;  in s390_gs_cb_set()
1203 	if (target == current) {  in s390_gs_cb_set()
1205 		restore_gs_cb(target->thread.gs_cb);  in s390_gs_cb_set()
1211 static int s390_gs_bc_get(struct task_struct *target,  in s390_gs_bc_get()  argument
1216 	struct gs_cb *data = target->thread.gs_bc_cb;  in s390_gs_bc_get()
1226 static int s390_gs_bc_set(struct task_struct *target,  in s390_gs_bc_set()  argument
1231 	struct gs_cb *data = target->thread.gs_bc_cb;  in s390_gs_bc_set()
1239 		target->thread.gs_bc_cb = data;  in s390_gs_bc_set()
1272 static int s390_runtime_instr_get(struct task_struct *target,  in s390_runtime_instr_get()  argument
1277 	struct runtime_instr_cb *data = target->thread.ri_cb;  in s390_runtime_instr_get()
1288 static int s390_runtime_instr_set(struct task_struct *target,  in s390_runtime_instr_set()  argument
1299 	if (!target->thread.ri_cb) {  in s390_runtime_instr_set()
1305 	if (target->thread.ri_cb) {  in s390_runtime_instr_set()
1306 		if (target == current)  in s390_runtime_instr_set()
1309 			ri_cb = *target->thread.ri_cb;  in s390_runtime_instr_set()
1325 	if (!target->thread.ri_cb)  in s390_runtime_instr_set()
1326 		target->thread.ri_cb = data;  in s390_runtime_instr_set()
1327 	*target->thread.ri_cb = ri_cb;  in s390_runtime_instr_set()
1328 	if (target == current)  in s390_runtime_instr_set()
1329 		load_runtime_instr_cb(target->thread.ri_cb);  in s390_runtime_instr_set()
1426 static int s390_compat_regs_get(struct task_struct *target,  in s390_compat_regs_get()  argument
1431 	if (target == current)  in s390_compat_regs_get()
1432 		save_access_regs(target->thread.acrs);  in s390_compat_regs_get()
1437 			*k++ = __peek_user_compat(target, pos);  in s390_compat_regs_get()
1444 			if (__put_user(__peek_user_compat(target, pos), u++))  in s390_compat_regs_get()
1453 static int s390_compat_regs_set(struct task_struct *target,  in s390_compat_regs_set()  argument
1460 	if (target == current)  in s390_compat_regs_set()
1461 		save_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1466 			rc = __poke_user_compat(target, pos, *k++);  in s390_compat_regs_set()
1477 			rc = __poke_user_compat(target, pos, word);  in s390_compat_regs_set()
1483 	if (rc == 0 && target == current)  in s390_compat_regs_set()
1484 		restore_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1489 static int s390_compat_regs_high_get(struct task_struct *target,  in s390_compat_regs_high_get()  argument
1497 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_get()
1517 static int s390_compat_regs_high_set(struct task_struct *target,  in s390_compat_regs_high_set()  argument
1526 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_set()
1550 static int s390_compat_last_break_get(struct task_struct *target,  in s390_compat_last_break_get()  argument
1558 		last_break = target->thread.last_break;  in s390_compat_last_break_get()
1571 static int s390_compat_last_break_set(struct task_struct *target,  in s390_compat_last_break_set()  argument