platforms/pseries/vas.c

37 static long hcall_return_busy_check(long rc)
40 	if (H_IS_LONG_BUSY(rc)) {
41 		msleep(get_longbusy_msecs(rc));
42 		rc = H_BUSY;
43 	} else if (rc == H_BUSY) {
47 	return rc;
57 	long rc;
60 		rc = plpar_hcall9(H_ALLOCATE_VAS_WINDOW, retbuf, wintype,
64 		rc = hcall_return_busy_check(rc);
65 	} while (rc == H_BUSY);
67 	if (rc == H_SUCCESS) {
80 		rc, wintype, credits);
90 	long rc;
93 		rc = plpar_hcall_norets(H_DEALLOCATE_VAS_WINDOW, winid);
95 		rc = hcall_return_busy_check(rc);
96 	} while (rc == H_BUSY);
98 	if (rc == H_SUCCESS)
102 		rc, winid);
113 	long rc;
120 		rc = plpar_hcall_norets(H_MODIFY_VAS_WINDOW,
124 		rc = hcall_return_busy_check(rc);
125 	} while (rc == H_BUSY);
127 	if (rc == H_SUCCESS)
131 			rc, win->vas_win.winid, win->pid);
150 	long rc;
152 	rc = plpar_hcall_norets(hcall, query_type, result);
154 	if (rc == H_SUCCESS)
158 	if (rc != H_FUNCTION) {
163 			rc, query_type, result);
175 	long rc;
177 	rc = plpar_hcall_norets(H_GET_NX_FAULT, winid, buffer);
179 	if (rc == H_SUCCESS)
183 		rc, winid, buffer);
202 	int rc;
205 		rc = h_get_nx_fault(txwin->vas_win.winid, (u64)virt_to_phys(&crb));
206 		if (!rc) {
245 	int rc;
247 	rc = h_allocate_vas_window(txwin, domain, wintype, DEF_WIN_CREDS);
248 	if (rc)
249 		return rc;
258 		rc = -EINVAL;
265 		rc = -ENOMEM;
269 	rc = request_threaded_irq(txwin->fault_virq,
273 	if (rc) {
275 		       txwin->vas_win.winid, txwin->fault_virq, rc);
288 	return rc;
305 	int rc;
345 		rc = -EINVAL;
362 		rc = plpar_hcall9(H_HOME_NODE_ASSOCIATIVITY, domain,
364 		if (rc != H_SUCCESS) {
365 			pr_err("H_HOME_NODE_ASSOCIATIVITY error: %d\n", rc);
389 		rc = -EBUSY;
391 		rc = allocate_setup_window(txwin, (u64 *)&domain[0],
393 		if (!rc)
398 	if (rc)
404 	rc = h_modify_vas_window(txwin);
405 	if (!rc)
406 		rc = get_vas_user_win_ref(&txwin->vas_win.task_ref);
407 	if (rc)
441 	rc = -EBUSY;
460 	return ERR_PTR(rc);
473 	int rc = 0;
484 	rc = h_deallocate_vas_window(win->vas_win.winid);
485 	if (!rc)
488 	return rc;
495 	int rc = 0;
519 		rc = deallocate_free_window(win);
520 		if (rc) {
522 			return rc;
574 	int rc = 0;
583 	rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES, feat,
585 	if (rc)
586 		return rc;
614 	rc = sysfs_add_vas_caps(caps);
615 	if (rc)
616 		return rc;
637 	int rc, mv_ents = 0;
701 		rc = allocate_setup_window(win, (u64 *)&domain[0],
703 		if (rc)
704 			return rc;
706 		rc = h_modify_vas_window(win);
707 		if (rc)
729 	return rc;
747 	int rc = 0, flag;
801 		rc = deallocate_free_window(win);
807 		if (rc && !migrate)
808 			return rc;
836 	int rc = 0, nr_active_wins;
863 		rc = reconfig_open_windows(vcaps, new_nr_creds - old_nr_creds,
873 			rc = reconfig_close_windows(vcaps,
879 	return rc;
884 	int new_nr_creds, rc;
893 	rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES,
896 	if (!rc) {
898 		rc = vas_reconfig_capabilties(VAS_GZIP_DEF_FEAT_TYPE, new_nr_creds);
901 	if (rc)
904 	return rc;
959 	int i, rc = 0;
967 		return rc;
979 		rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES,
982 		if (!rc) {
1000 				action, rc);
1015 			rc = reconfig_close_windows(vcaps, vcaps->nr_open_windows,
1033 			rc = reconfig_open_windows(vcaps, new_nr_creds, true);
1039 			rc = -EINVAL;
1046 		if (rc && (action == VAS_RESUME))
1053 	return rc;
1059 	int rc = 0;
1076 	rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES, 0,
1078 	if (rc)
1090 		rc = get_vas_capabilities(VAS_GZIP_QOS_FEAT,
1093 		if (rc)
1100 		rc = get_vas_capabilities(VAS_GZIP_DEF_FEAT,
1103 	if (!rc && copypaste_feat) {
1119 	return rc;