Annotation of sys/arch/alpha/pci/pci_machdep.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: pci_machdep.c,v 1.16 2002/03/14 01:26:27 millert Exp $ */
2: /* $NetBSD: pci_machdep.c,v 1.7 1996/11/19 04:57:32 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1995, 1996 Carnegie-Mellon University.
6: * All rights reserved.
7: *
8: * Author: Chris G. Demetriou
9: *
10: * Permission to use, copy, modify and distribute this software and
11: * its documentation is hereby granted, provided that both the copyright
12: * notice and this permission notice appear in all copies of the
13: * software, derivative works or modified versions, and any portions
14: * thereof, and that both notices appear in supporting documentation.
15: *
16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19: *
20: * Carnegie Mellon requests users of this software to return to
21: *
22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23: * School of Computer Science
24: * Carnegie Mellon University
25: * Pittsburgh PA 15213-3890
26: *
27: * any improvements or extensions that they make and grant Carnegie the
28: * rights to redistribute these changes.
29: */
30:
31: /*
32: * Machine-specific functions for PCI autoconfiguration.
33: */
34:
35: #include <sys/types.h>
36: #include <sys/param.h>
37: #include <sys/time.h>
38: #include <sys/systm.h>
39: #include <sys/errno.h>
40: #include <sys/device.h>
41: #include <uvm/uvm_extern.h>
42: #include <machine/cpu.h>
43: #include <sys/sysctl.h>
44:
45: #include <dev/isa/isavar.h>
46: #include <dev/pci/pcireg.h>
47: #include <dev/pci/pcivar.h>
48: #include <dev/pci/pcidevs.h>
49:
50: #include "vga.h"
51: #if NVGA_PCI
52: #include <dev/pci/vga_pcivar.h>
53: #endif
54:
55: #include "tga.h"
56: #if NTGA
57: #include <dev/pci/tgavar.h>
58: #endif
59:
60: struct alpha_pci_chipset *alpha_pci_chipset;
61:
62: void
63: pci_display_console(iot, memt, pc, bus, device, function)
64: bus_space_tag_t iot, memt;
65: pci_chipset_tag_t pc;
66: int bus, device, function;
67: {
68: pcitag_t tag;
69: pcireg_t id, class;
70: int match;
71: #if NVGA_PCI || NTGA
72: int nmatch;
73: #endif
74: int (*fn)(bus_space_tag_t, bus_space_tag_t, pci_chipset_tag_t,
75: int, int, int);
76:
77: tag = pci_make_tag(pc, bus, device, function);
78: id = pci_conf_read(pc, tag, PCI_ID_REG);
79: if (id == 0 || id == 0xffffffff)
80: panic("pci_display_console: no device at %d/%d/%d",
81: bus, device, function);
82: class = pci_conf_read(pc, tag, PCI_CLASS_REG);
83:
84: match = 0;
85: fn = NULL;
86:
87: #if NVGA_PCI
88: nmatch = DEVICE_IS_VGA_PCI(class, id);
89: if (nmatch > match) {
90: match = nmatch;
91: fn = vga_pci_cnattach;
92: }
93: #endif
94: #if NTGA
95: nmatch = DEVICE_IS_TGA(class, id);
96: if (nmatch > match) {
97: match = nmatch;
98: fn = tga_cnattach;
99: }
100: #endif
101:
102: if (fn != NULL)
103: (*fn)(iot, memt, pc, bus, device, function);
104: else
105: panic("pci_display_console: unconfigured device at %d/%d/%d",
106: bus, device, function);
107: }
108:
109: int
110: alpha_sysctl_chipset(int *name, u_int namelen, char *where, size_t *sizep)
111: {
112: if (namelen != 1)
113: return (ENOTDIR);
114:
115: if (alpha_pci_chipset == NULL)
116: return (EOPNOTSUPP);
117:
118: switch (name[0]) {
119: case CPU_CHIPSET_TYPE:
120: return (sysctl_rdstring(where, sizep, NULL,
121: alpha_pci_chipset->pc_name));
122: case CPU_CHIPSET_BWX:
123: return (sysctl_rdint(where, sizep, NULL,
124: alpha_pci_chipset->pc_bwx));
125: case CPU_CHIPSET_MEM:
126: return (sysctl_rdquad(where, sizep, NULL,
127: alpha_pci_chipset->pc_mem));
128: case CPU_CHIPSET_DENSE:
129: return (sysctl_rdquad(where, sizep, NULL,
130: alpha_pci_chipset->pc_dense));
131: case CPU_CHIPSET_PORTS:
132: return (sysctl_rdquad(where, sizep, NULL,
133: alpha_pci_chipset->pc_ports));
134: case CPU_CHIPSET_HAE_MASK:
135: return (sysctl_rdquad(where, sizep, NULL,
136: alpha_pci_chipset->pc_hae_mask));
137: default:
138: return (EOPNOTSUPP);
139: }
140: /* NOTREACHED */
141: }
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