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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/pci_cfgacc.h>
27
28 #define PCI_CFGACC_FILLREQ(r, d, b, o, s, w, v) \
29 {(r).rcdip = (d); (r).bdf = (b); (r).offset = (o); \
30 (r).size = (s); (r).write = w; (r).ioacc = B_FALSE; \
31 VAL64(&(r)) = (v); }
32
33 /*
34 * Common interfaces for accessing pci config space
35 */
36
37 /*
38 * This pointer should be initialized before using, here doesn't check it.
39 * For x86:
40 * initialized at the end of pci_check();
41 * For Sparc:
42 * initialized in the px_attach().
43 */
44 void (*pci_cfgacc_acc_p)(pci_cfgacc_req_t *req);
45
46 uint8_t
pci_cfgacc_get8(dev_info_t * rcdip,uint16_t bdf,uint16_t off)47 pci_cfgacc_get8(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
48 {
49 pci_cfgacc_req_t req;
50
51 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 1, B_FALSE, 0);
52 (*pci_cfgacc_acc_p)(&req);
53 return (VAL8(&req));
54 }
55
56 void
pci_cfgacc_put8(dev_info_t * rcdip,uint16_t bdf,uint16_t off,uint8_t data)57 pci_cfgacc_put8(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint8_t data)
58 {
59 pci_cfgacc_req_t req;
60
61 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 1, B_TRUE, data);
62 (*pci_cfgacc_acc_p)(&req);
63 }
64
65 uint16_t
pci_cfgacc_get16(dev_info_t * rcdip,uint16_t bdf,uint16_t off)66 pci_cfgacc_get16(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
67 {
68 pci_cfgacc_req_t req;
69
70 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 2, B_FALSE, 0);
71 (*pci_cfgacc_acc_p)(&req);
72 return (VAL16(&req));
73 }
74
75 void
pci_cfgacc_put16(dev_info_t * rcdip,uint16_t bdf,uint16_t off,uint16_t data)76 pci_cfgacc_put16(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint16_t data)
77 {
78 pci_cfgacc_req_t req;
79
80 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 2, B_TRUE, data);
81 (*pci_cfgacc_acc_p)(&req);
82 }
83
84 uint32_t
pci_cfgacc_get32(dev_info_t * rcdip,uint16_t bdf,uint16_t off)85 pci_cfgacc_get32(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
86 {
87 pci_cfgacc_req_t req;
88
89 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 4, B_FALSE, 0);
90 (*pci_cfgacc_acc_p)(&req);
91 return (VAL32(&req));
92 }
93
94 void
pci_cfgacc_put32(dev_info_t * rcdip,uint16_t bdf,uint16_t off,uint32_t data)95 pci_cfgacc_put32(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint32_t data)
96 {
97 pci_cfgacc_req_t req;
98
99 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 4, B_TRUE, data);
100 (*pci_cfgacc_acc_p)(&req);
101 }
102
103 uint64_t
pci_cfgacc_get64(dev_info_t * rcdip,uint16_t bdf,uint16_t off)104 pci_cfgacc_get64(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
105 {
106 pci_cfgacc_req_t req;
107
108 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 8, B_FALSE, 0);
109 (*pci_cfgacc_acc_p)(&req);
110 return (VAL64(&req));
111 }
112
113 void
pci_cfgacc_put64(dev_info_t * rcdip,uint16_t bdf,uint16_t off,uint64_t data)114 pci_cfgacc_put64(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint64_t data)
115 {
116 pci_cfgacc_req_t req;
117
118 PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 8, B_TRUE, data);
119 (*pci_cfgacc_acc_p)(&req);
120 }
121