106 static void ptrace_set_get_vl(pid_t child, unsigned int vl, bool *supported)  in ptrace_set_get_vl()  argument
116 	prctl_vl = prctl(PR_SME_SET_VL, vl);  in ptrace_set_get_vl()
122 	*supported = (prctl_vl == vl);  in ptrace_set_get_vl()
127 	za.vl = vl;  in ptrace_set_get_vl()
130 		ksft_test_result_fail("Failed to set VL %u\n", vl);  in ptrace_set_get_vl()
139 		ksft_test_result_fail("Failed to read VL %u\n", vl);  in ptrace_set_get_vl()
143 	ksft_test_result(new_za->vl = prctl_vl, "Set VL %u\n", vl);  in ptrace_set_get_vl()
149 static void ptrace_set_no_data(pid_t child, unsigned int vl)  in ptrace_set_no_data()  argument
160 	write_za.vl = vl;  in ptrace_set_no_data()
164 		ksft_test_result_fail("Failed to set VL %u no data\n", vl);  in ptrace_set_no_data()
170 		ksft_test_result_fail("Failed to read VL %u no data\n", vl);  in ptrace_set_no_data()
178 				      vl, write_za.size, read_za->size);  in ptrace_set_no_data()
183 			 "Disabled ZA for VL %u\n", vl);  in ptrace_set_no_data()
190 static void ptrace_set_get_data(pid_t child, unsigned int vl)  in ptrace_set_get_data()  argument
197 	unsigned int vq = sve_vq_from_vl(vl);  in ptrace_set_get_data()
205 				      data_size, vl);  in ptrace_set_get_data()
213 	write_za->vl = vl;  in ptrace_set_get_data()
219 		ksft_test_result_fail("Failed to set VL %u data\n", vl);  in ptrace_set_get_data()
225 		ksft_test_result_fail("Failed to read VL %u data\n", vl);  in ptrace_set_get_data()
233 				      vl, write_za->size, read_za->size);  in ptrace_set_get_data()
240 			 "Data match for VL %u\n", vl);  in ptrace_set_get_data()
254 	unsigned int vq, vl;  in do_parent()  local
315 		vl = sve_vl_from_vq(vq);  in do_parent()
318 		ptrace_set_get_vl(child, vl, &vl_supported);  in do_parent()
322 			ptrace_set_no_data(child, vl);  in do_parent()
323 			ptrace_set_get_data(child, vl);  in do_parent()
325 			ksft_test_result_skip("Disabled ZA for VL %u\n", vl);  in do_parent()
327 					      vl);  in do_parent()