1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * sun4u specific DDI implementation
28  */
29 #include <sys/bootconf.h>
30 #include <sys/conf.h>
31 #include <sys/machsystm.h>
32 #include <sys/idprom.h>
33 #include <sys/promif.h>
34 
35 
36 /*
37  * Favored drivers of this implementation
38  * architecture.  These drivers MUST be present for
39  * the system to boot at all.
40  */
41 char *impl_module_list[] = {
42 	"rootnex",
43 	"options",
44 	"sad",		/* Referenced via init_tbl[] */
45 	"pseudo",
46 	"clone",
47 	"scsi_vhci",
48 	(char *)0
49 };
50 
51 /*
52  * Check the status of the device node passed as an argument.
53  *
54  *	if ((status is OKAY) || (status is DISABLED))
55  *		return DDI_SUCCESS
56  *	else
57  *		print a warning and return DDI_FAILURE
58  */
59 /*ARGSUSED*/
60 int
61 check_status(int id, char *buf, dev_info_t *parent)
62 {
63 	char status_buf[64];
64 	extern int status_okay(int, char *, int);
65 
66 	/*
67 	 * is the status okay?
68 	 */
69 	if (status_okay(id, status_buf, sizeof (status_buf)))
70 		return (DDI_SUCCESS);
71 
72 	return (DDI_FAILURE);
73 }
74 
75 /*
76  * For Devices which are assigned to another logical domain, the
77  * firmware modifies the various PCI properties so that no
78  * driver will attach in the case where the OS instances does not
79  * support ldoms direct I/O.  Since we do not support it, we can
80  * restore those properties to their expected values.
81  * See FWARC/2009/535.
82  */
83 /*ARGSUSED*/
84 void
85 translate_devid(dev_info_t *dip)
86 {
87 	int devid, venid, ssid, ssvid, rev, class_code;
88 	char *new_compat[7];
89 	int i;
90 	int compat_entry_length = 30;
91 	int ncompat = 7;
92 
93 	if ((devid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
94 	    "real-device-id", -1)) == -1)
95 		return;
96 	if ((venid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
97 	    "real-vendor-id", -1)) == -1)
98 		return;
99 
100 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "device-id", devid);
101 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "vendor-id", venid);
102 
103 	class_code = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
104 	    "real-class-code", 0);
105 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "class-clode",
106 	    class_code);
107 
108 	ssvid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
109 	    "real-subsystem-vendor-id", -1);
110 	if (ssvid != -1)
111 		(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip,
112 		    "subsystem-vendor-id", ssvid);
113 
114 	ssid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
115 	    "real-subsystem-id", -1);
116 	if (ssid != -1)
117 		(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "subsystem-id",
118 		    ssid);
119 
120 	rev = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
121 	    "real-revision-id", 0);
122 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "revision-id", rev);
123 
124 	for (i = 0; i < ncompat; ++i) {
125 		new_compat[i] = kmem_zalloc(compat_entry_length, KM_NOSLEEP);
126 		if (new_compat[i] == NULL) {
127 			cmn_err(CE_WARN, "translate_devid: kmem_alloc "
128 			    "failed\n");
129 			ncompat = i;
130 			goto cleanup;
131 		}
132 	}
133 
134 	(void) sprintf(new_compat[0], "pciex%x,%x.%x.%x.%x",
135 	    venid, devid, ssvid, ssid, rev);
136 	(void) sprintf(new_compat[1], "pciex%x,%x.%x.%x",
137 	    venid, devid, ssvid, ssid);
138 	(void) sprintf(new_compat[2], "pciex%x,%x.%x", venid, devid, rev);
139 	(void) sprintf(new_compat[3], "pciex%x,%x", venid, devid);
140 	(void) sprintf(new_compat[4], "pciexclass,%06x", class_code);
141 	(void) sprintf(new_compat[5], "pciexclass,%04x", class_code >> 8);
142 	(void) sprintf(new_compat[6], "pci%x,%x", venid, devid);
143 
144 	(void) ddi_prop_update_string_array(DDI_DEV_T_NONE, dip, "compatible",
145 	    (char **)new_compat, 7);
146 
147 cleanup:
148 	for (i = 0; i < ncompat; ++i)
149 		kmem_free(new_compat[i], compat_entry_length);
150 
151 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "ddi-assigned", 0);
152 	(void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
153 }
154