xref: /titanic_44/usr/src/uts/intel/io/mc-amd/mcamd_pcicfg.c (revision 1e4c938b57d1656808e4112127ff1dce3eba5314)
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 #include <sys/ddi.h>
28 #include <sys/sunddi.h>
29 
30 #include <mcamd_pcicfg.h>
31 #include <sys/pci_cfgspace.h>
32 
33 struct _mc_pcicfg_hdl {
34 	mc_t *cfh_mc;
35 	enum mc_funcnum cfh_func;
36 	ddi_acc_handle_t cfh_hdl;
37 };
38 
39 static int
40 mccfgsetup(struct _mc_pcicfg_hdl *hdlp, mc_t *mc, enum mc_funcnum func)
41 {
42 	hdlp->cfh_mc = mc;
43 	hdlp->cfh_func = func;
44 
45 	if (mc->mc_funcs[func].mcf_devi == NULL)
46 		return (DDI_FAILURE);
47 
48 	if (pci_config_setup(mc->mc_funcs[func].mcf_devi, &hdlp->cfh_hdl) !=
49 	    DDI_SUCCESS)
50 		return (DDI_FAILURE);
51 
52 	return (DDI_SUCCESS);
53 }
54 
55 int
56 mc_pcicfg_setup(mc_t *mc, enum mc_funcnum func, mc_pcicfg_hdl_t *cookiep)
57 {
58 	struct _mc_pcicfg_hdl *hdlp;
59 
60 	*cookiep = hdlp = kmem_alloc(sizeof (struct _mc_pcicfg_hdl), KM_SLEEP);
61 
62 	if (mccfgsetup(hdlp, mc, func) == DDI_FAILURE) {
63 		kmem_free(hdlp, sizeof (*hdlp));
64 		return (DDI_FAILURE);
65 	}
66 
67 	return (DDI_SUCCESS);
68 }
69 
70 void
71 mc_pcicfg_teardown(mc_pcicfg_hdl_t cookie)
72 {
73 	struct _mc_pcicfg_hdl *hdlp = cookie;
74 
75 	pci_config_teardown(&hdlp->cfh_hdl);
76 	kmem_free(hdlp, sizeof (*hdlp));
77 }
78 
79 uint32_t
80 mc_pcicfg_get32(mc_pcicfg_hdl_t cookie, off_t offset)
81 {
82 	struct _mc_pcicfg_hdl *hdlp = cookie;
83 
84 	return (pci_config_get32(hdlp->cfh_hdl, offset));
85 }
86 
87 void
88 mc_pcicfg_put32(mc_pcicfg_hdl_t cookie, off_t offset, uint32_t val)
89 {
90 	struct _mc_pcicfg_hdl *hdlp = cookie;
91 
92 	pci_config_put32(hdlp->cfh_hdl, offset, val);
93 }
94 
95 uint32_t
96 mc_pcicfg_get32_nohdl(mc_t *mc, enum mc_funcnum func, off_t offset)
97 {
98 	return ((*pci_getl_func)(0, MC_AMD_DEV_OFFSET + mc->mc_props.mcp_num,
99 	    func, offset));
100 }
101 
102 void
103 mc_pcicfg_put32_nohdl(mc_t *mc, enum mc_funcnum func, off_t offset,
104     uint32_t val)
105 {
106 	(*pci_putl_func)(0, MC_AMD_DEV_OFFSET + mc->mc_props.mcp_num,
107 	    func, offset, val);
108 }
109