xref: /titanic_44/usr/src/uts/sun4u/io/pci/pci_debug.c (revision 34f9b3eef6fdadbda0a846aa4d68691ac40eace5)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 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  * PCI nexus driver general debug support
31  */
32 #include <sys/promif.h>		/* prom_printf */
33 #include <sys/async.h>
34 #include <sys/sunddi.h>		/* dev_info_t */
35 #include <sys/ddi_impldefs.h>
36 #include <sys/pci/pci_obj.h>
37 
38 /*LINTLIBRARY*/
39 
40 #ifdef DEBUG
41 extern uint64_t pci_debug_flags;
42 
43 pci_debug_flag_to_string_t pci_flags_to_string [] = {
44 	{DBG_ATTACH,		"attach"},
45 	{DBG_DETACH,		"detach"},
46 	{DBG_MAP,		"map"},
47 	{DBG_RSV1,		"reserved"},
48 	{DBG_A_INTX,		"add_intx"},
49 	{DBG_R_INTX,		"rem_intx"},
50 	{DBG_INIT_CLD,		"init_child"},
51 	{DBG_CTLOPS,		"ctlops"},
52 	{DBG_INTR,		"intr_wrapper"},
53 	{DBG_ERR_INTR,		"pbm_error_intr"},
54 	{DBG_BUS_FAULT,		"pci_fault"},
55 	{DBG_DMA_ALLOCH,	"dma_alloc_handle"},
56 	{DBG_DMA_FREEH,		"dma_free_handle"},
57 	{DBG_DMA_BINDH,		"dma_bind_handle"},
58 	{DBG_DMA_UNBINDH,	"dma_unbind_handle"},
59 	{DBG_DMA_MAP,		"dma_map"},
60 	{DBG_CHK_MOD,		"check_dma_mode"},
61 	{DBG_BYPASS,		"bypass"},
62 	{DBG_IOMMU,		"iommu"},
63 	{DBG_DMA_WIN,		"dma_win"},
64 	{DBG_MAP_WIN,		"map_window"},
65 	{DBG_UNMAP_WIN,		"unmap_window"},
66 	{DBG_DMA_CTL,		"dma_ctl"},
67 	{DBG_DMA_SYNC,		"dma_sync"},
68 	{DBG_DMA_SYNC_PBM,	"dma_sync_pbm"},
69 	{DBG_FAST_DVMA,		"fast_dvma"},
70 	{DBG_IB,		"ib"},
71 	{DBG_CB,		"cb"},
72 	{DBG_PBM,		"pbm"},
73 	{DBG_OPEN,		"open"},
74 	{DBG_CLOSE,		"close"},
75 	{DBG_IOCTL,		"ioctl"},
76 	{DBG_SC,		"sc"},
77 	{DBG_PWR,		"pwr"},
78 	{DBG_RELOC,		"dma_reloc"},
79 	{DBG_TOOLS,		"tools"},
80 	{DBG_PHYS_ACC,		"phys_acc"}
81 };
82 
83 void
84 pci_debug(uint64_t flag, dev_info_t *dip, char *fmt,
85 	uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5)
86 {
87 	char *s = NULL;
88 	uint_t cont = 0;
89 
90 	if (flag & DBG_CONT) {
91 		flag &= ~DBG_CONT;
92 		cont = 1;
93 	}
94 	if ((pci_debug_flags & flag) == flag) {
95 		int i;
96 		int no_rec = (sizeof (pci_flags_to_string) /
97 		    sizeof (pci_debug_flag_to_string_t));
98 		for (i = 0; i < no_rec; i++) {
99 			if (pci_flags_to_string[i].flag == flag) {
100 				s = pci_flags_to_string[i].string;
101 				break;
102 			}
103 		}
104 
105 		if (i >= no_rec)
106 			s = "PCI debug unknown";
107 
108 		if (s && cont == 0) {
109 			prom_printf("%s(%d): %s: ", ddi_driver_name(dip),
110 			    ddi_get_instance(dip), s);
111 		}
112 		prom_printf(fmt, a1, a2, a3, a4, a5);
113 	}
114 }
115 #endif
116