xref: /titanic_50/usr/src/uts/i86pc/cpu/genuineintel/gintel_main.c (revision b5d3ab78446c645a1150b57b7a58b535229ee742)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * Intel model-specific support.  Right now all this conists of is
31  * to modify the ereport subclass to produce different ereport classes
32  * so that we can have different diagnosis rules and corresponding faults.
33  */
34 
35 #include <sys/types.h>
36 #include <sys/cmn_err.h>
37 #include <sys/modctl.h>
38 #include <sys/mca_x86.h>
39 #include <sys/cpu_module_ms_impl.h>
40 #include <sys/mc_intel.h>
41 #include <sys/pci_cfgspace.h>
42 
43 int gintel_ms_support_disable = 0;
44 int gintel_error_action_return = 0;
45 int gintel_ms_unconstrained = 0;
46 
47 /*ARGSUSED*/
48 int
49 gintel_init(cmi_hdl_t hdl, void **datap)
50 {
51 	uint32_t nb_chipset;
52 
53 	if (gintel_ms_support_disable)
54 		return (ENOTSUP);
55 
56 	if (!(x86_feature & X86_MCA))
57 		return (ENOTSUP);
58 
59 	nb_chipset = (*pci_getl_func)(0, 0, 0, 0x0);
60 	switch (nb_chipset) {
61 	case INTEL_NB_7300:
62 	case INTEL_NB_5000P:
63 	case INTEL_NB_5000X:
64 	case INTEL_NB_5000V:
65 	case INTEL_NB_5000Z:
66 	case INTEL_NB_5400:
67 	case INTEL_NB_5400A:
68 	case INTEL_NB_5400B:
69 		if (!gintel_ms_unconstrained)
70 			gintel_error_action_return |= CMS_ERRSCOPE_POISONED;
71 		break;
72 	default:
73 		break;
74 	}
75 	return (0);
76 }
77 
78 /*ARGSUSED*/
79 uint32_t
80 gintel_error_action(cmi_hdl_t hdl, int ismc, int bank,
81     uint64_t status, uint64_t addr, uint64_t misc, void *mslogout)
82 {
83 	if ((status & MSR_MC_STATUS_PCC) == 0)
84 		return (gintel_error_action_return);
85 	else
86 		return (gintel_error_action_return & ~CMS_ERRSCOPE_POISONED);
87 }
88 
89 /*ARGSUSED*/
90 void
91 gintel_ereport_class(cmi_hdl_t hdl, cms_cookie_t mscookie,
92     const char **cpuclsp, const char **leafclsp)
93 {
94 	*cpuclsp = FM_EREPORT_CPU_INTEL;
95 }
96 
97 cms_api_ver_t _cms_api_version = CMS_API_VERSION_0;
98 
99 const cms_ops_t _cms_ops = {
100 	gintel_init,		/* cms_init */
101 	NULL,			/* cms_post_startup */
102 	NULL,			/* cms_post_mpstartup */
103 	NULL,			/* cms_logout_size */
104 	NULL,			/* cms_mcgctl_val */
105 	NULL,			/* cms_bankctl_skipinit */
106 	NULL,			/* cms_bankctl_val */
107 	NULL,			/* cms_bankstatus_skipinit */
108 	NULL,			/* cms_bankstatus_val */
109 	NULL,			/* cms_mca_init */
110 	NULL,			/* cms_poll_ownermask */
111 	NULL,			/* cms_bank_logout */
112 	gintel_error_action,	/* cms_error_action */
113 	NULL,			/* cms_disp_match */
114 	gintel_ereport_class,	/* cms_ereport_class */
115 	NULL,			/* cms_ereport_detector */
116 	NULL,			/* cms_ereport_includestack */
117 	NULL,			/* cms_ereport_add_logout */
118 	NULL,			/* cms_msrinject */
119 	NULL,			/* cms_fini */
120 };
121 
122 static struct modlcpu modlcpu = {
123 	&mod_cpuops,
124 	"Generic Intel model-specific MCA"
125 };
126 
127 static struct modlinkage modlinkage = {
128 	MODREV_1,
129 	(void *)&modlcpu,
130 	NULL
131 };
132 
133 int
134 _init(void)
135 {
136 	return (mod_install(&modlinkage));
137 }
138 
139 int
140 _info(struct modinfo *modinfop)
141 {
142 	return (mod_info(&modlinkage, modinfop));
143 }
144 
145 int
146 _fini(void)
147 {
148 	return (mod_remove(&modlinkage));
149 }
150