xref: /dragonfly/sys/bus/pci/pcireg.h (revision 7bc7e232)
1 /*
2  * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/pci/pcireg.h,v 1.24.2.5 2002/08/31 10:06:51 gibbs Exp $
27  * $DragonFly: src/sys/bus/pci/pcireg.h,v 1.14 2007/11/23 13:40:58 sephe Exp $
28  *
29  */
30 
31 /*
32  * PCIM_xxx: mask to locate subfield in register
33  * PCIR_xxx: config register offset
34  * PCIC_xxx: device class
35  * PCIS_xxx: device subclass
36  * PCIP_xxx: device programming interface
37  * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
38  * PCID_xxx: device ID
39  * PCIY_xxx: capability identification number
40  */
41 
42 /* some PCI bus constants */
43 
44 #define PCI_BUSMAX	255
45 #define PCI_SLOTMAX	31
46 #define PCI_FUNCMAX	7
47 #define PCI_REGMAX	255
48 #define PCI_MAXHDRTYPE	2
49 
50 /* PCI config header registers for all devices */
51 
52 #define PCIR_DEVVENDOR	0x00
53 #define PCIR_VENDOR	0x00
54 #define PCIR_DEVICE	0x02
55 #define PCIR_COMMAND	0x04
56 #define PCIM_CMD_PORTEN		0x0001
57 #define PCIM_CMD_MEMEN		0x0002
58 #define PCIM_CMD_BUSMASTEREN	0x0004
59 #define PCIM_CMD_MWRICEN	0x0010
60 #define PCIM_CMD_PERRESPEN	0x0040
61 #define	PCIM_CMD_SERRESPEN	0x0100
62 #define PCIR_STATUS	0x06
63 #define PCIM_STATUS_CAPPRESENT	0x0010
64 #define PCIM_STATUS_66CAPABLE	0x0020
65 #define PCIM_STATUS_BACKTOBACK	0x0080
66 #define PCIM_STATUS_PERRREPORT	0x0100
67 #define PCIM_STATUS_SEL_FAST	0x0000
68 #define PCIM_STATUS_SEL_MEDIMUM	0x0200
69 #define PCIM_STATUS_SEL_SLOW	0x0400
70 #define PCIM_STATUS_SEL_MASK	0x0600
71 #define PCIM_STATUS_STABORT	0x0800
72 #define PCIM_STATUS_RTABORT	0x1000
73 #define PCIM_STATUS_RMABORT	0x2000
74 #define PCIM_STATUS_SERR	0x4000
75 #define PCIM_STATUS_PERR	0x8000
76 #define PCIR_REVID	0x08
77 #define PCIR_PROGIF	0x09
78 #define PCIR_SUBCLASS	0x0a
79 #define PCIR_CLASS	0x0b
80 #define PCIR_CACHELNSZ	0x0c
81 #define PCIR_LATTIMER	0x0d
82 #define PCIR_HDRTYPE	0x0e
83 #define PCIM_HDRTYPE	0x7f
84 #define PCIM_HDRTYPE_NORMAL     0x00
85 #define PCIM_HDRTYPE_BRIDGE     0x01
86 #define PCIM_HDRTYPE_CARDBUS    0x02
87 #define PCIM_MFDEV	0x80
88 #define PCIR_BIST	0x0f
89 
90 /* Capability Identification Numbers */
91 #define PCIY_PMG        0x01    /* PCI Power Management */
92 #define PCIY_AGP        0x02    /* AGP */
93 #define PCIY_VPD        0x03    /* Vital Product Data */
94 #define PCIY_SLOTID     0x04    /* Slot Identification */
95 #define PCIY_MSI        0x05    /* Message Signaled Interrupts */
96 #define PCIY_CHSWP      0x06    /* CompactPCI Hot Swap */
97 #define PCIY_PCIX       0x07    /* PCI-X */
98 #define PCIY_HT         0x08    /* HyperTransport */
99 #define PCIY_VENDOR     0x09    /* Vendor Unique */
100 #define PCIY_DEBUG      0x0a    /* Debug port */
101 #define PCIY_CRES       0x0b    /* CompactPCI central resource control */
102 #define PCIY_HOTPLUG    0x0c    /* PCI Hot-Plug */
103 #define PCIY_AGP8X      0x0e    /* AGP 8x */
104 #define PCIY_SECDEV     0x0f    /* Secure Device */
105 #define PCIY_EXPRESS    0x10    /* PCI Express */
106 #define PCIY_MSIX       0x11    /* MSI-X */
107 
108 /* config registers for header type 0 devices */
109 
110 #define PCIR_BARS       0x10
111 #define PCIR_BAR(x)     (PCIR_BARS + (x) * 4)
112 #define PCIR_MAPS       PCIR_BARS	/* DEPRECATED XXX */
113 #define PCIR_CARDBUSCIS	0x28
114 #define PCIR_SUBVEND_0	0x2c
115 #define PCIR_SUBDEV_0	0x2e
116 #define PCIR_BIOS	0x30
117 #define PCIM_BIOS_ENABLE	0x01
118 #define PCIR_CAP_PTR	0x34
119 #define PCIR_INTLINE	0x3c
120 #define PCIR_INTPIN	0x3d
121 #define PCIR_MINGNT	0x3e
122 #define PCIR_MAXLAT	0x3f
123 
124 /* config registers for header type 1 devices */
125 
126 #define PCIR_SECSTAT_1	0x1e
127 
128 #define PCIR_PRIBUS_1	0x18
129 #define PCIR_SECBUS_1	0x19
130 #define PCIR_SUBBUS_1	0x1a
131 #define PCIR_SECLAT_1	0x1b
132 
133 #define PCIR_IOBASEL_1	0x1c
134 #define PCIR_IOLIMITL_1	0x1d
135 #define PCIR_IOBASEH_1	0x30
136 #define PCIR_IOLIMITH_1	0x32
137 #define PCIM_BRIO_16            0x0
138 #define PCIM_BRIO_32            0x1
139 #define PCIM_BRIO_MASK          0xf
140 
141 #define PCIR_MEMBASE_1	0x20
142 #define PCIR_MEMLIMIT_1	0x22
143 
144 #define PCIR_PMBASEL_1	0x24
145 #define PCIR_PMLIMITL_1	0x26
146 #define PCIR_PMBASEH_1  0x28
147 #define PCIR_PMLIMITH_1 0x2c
148 
149 #define PCIR_BRIDGECTL_1 0x3e
150 
151 #define PCIR_SUBVEND_1	0x34
152 #define PCIR_SUBDEV_1	0x36
153 
154 /* config registers for header type 2 (Cardbus) devices */
155 
156 #define PCIR_CAP_PTR_2	0x14
157 #define PCIR_SECSTAT_2	0x16
158 
159 #define PCIR_PRIBUS_2	0x18
160 #define PCIR_SECBUS_2	0x19
161 #define PCIR_SUBBUS_2	0x1a
162 #define PCIR_SECLAT_2	0x1b
163 
164 #define PCIR_MEMBASE0_2	0x1c
165 #define PCIR_MEMLIMIT0_2 0x20
166 #define PCIR_MEMBASE1_2	0x24
167 #define PCIR_MEMLIMIT1_2 0x28
168 #define PCIR_IOBASE0_2	0x2c
169 #define PCIR_IOLIMIT0_2	0x30
170 #define PCIR_IOBASE1_2	0x34
171 #define PCIR_IOLIMIT1_2	0x38
172 
173 #define PCIR_BRIDGECTL_2 0x3e
174 
175 #define PCIR_SUBVEND_2	0x40
176 #define PCIR_SUBDEV_2	0x42
177 
178 #define PCIR_PCCARDIF_2	0x44
179 
180 /* PCI device class, subclass and programming interface definitions */
181 
182 #define PCIC_OLD	0x00
183 #define PCIS_OLD_NONVGA		0x00
184 #define PCIS_OLD_VGA		0x01
185 
186 #define PCIC_STORAGE	0x01
187 #define PCIS_STORAGE_SCSI	0x00
188 #define PCIS_STORAGE_IDE	0x01
189 #define PCIP_STORAGE_IDE_MODEPRIM	0x01
190 #define PCIP_STORAGE_IDE_PROGINDPRIM	0x02
191 #define PCIP_STORAGE_IDE_MODESEC	0x04
192 #define PCIP_STORAGE_IDE_PROGINDSEC	0x08
193 #define PCIP_STORAGE_IDE_MASTERDEV	0x80
194 #define PCIS_STORAGE_FLOPPY	0x02
195 #define PCIS_STORAGE_IPI	0x03
196 #define PCIS_STORAGE_RAID	0x04
197 #define PCIS_STORAGE_ATA	0x05
198 #define PCIP_STORAGE_ATA_SINGLEDMA	0x20
199 #define PCIP_STORAGE_ATA_CHAINDMA	0x30
200 #define PCIS_STORAGE_SATA	0x06
201 #define PCIP_STORAGE_SATA_AHCI		0x01
202 #define PCIS_STORAGE_SAS	0x07
203 #define PCIP_STORAGE_SAS_VENDOR		0x00
204 #define PCIP_STORAGE_SAS_SSB		0x01
205 #define PCIS_STORAGE_OTHER	0x80
206 
207 #define PCIC_NETWORK	0x02
208 #define PCIS_NETWORK_ETHERNET	0x00
209 #define PCIS_NETWORK_TOKENRING	0x01
210 #define PCIS_NETWORK_FDDI	0x02
211 #define PCIS_NETWORK_ATM	0x03
212 #define PCIS_NETWORK_ISDN	0x04
213 #define PCIS_NETWORK_WORLDFIP	0x05
214 #define PCIS_NETWORK_PICMG	0x06
215 #define PCIS_NETWORK_OTHER	0x80
216 
217 #define PCIC_DISPLAY	0x03
218 #define PCIS_DISPLAY_VGA	0x00
219 #define PCIP_DISPLAY_VGA_COMP		0x00
220 #define PCIP_DISPLAY_VGA_8514		0x01
221 #define PCIS_DISPLAY_XGA	0x01
222 #define PCIS_DISPLAY_3D		0x02
223 #define PCIS_DISPLAY_OTHER	0x80
224 
225 #define PCIC_MULTIMEDIA	0x04
226 #define PCIS_MULTIMEDIA_VIDEO	0x00
227 #define PCIS_MULTIMEDIA_AUDIO	0x01
228 #define PCIS_MULTIMEDIA_TEL	0x02
229 #define PCIS_MULTIMEDIA_OTHER	0x80
230 
231 #define PCIC_MEMORY	0x05
232 #define PCIS_MEMORY_RAM		0x00
233 #define PCIS_MEMORY_FLASH	0x01
234 #define PCIS_MEMORY_OTHER	0x80
235 
236 #define PCIC_BRIDGE	0x06
237 #define PCIS_BRIDGE_HOST	0x00
238 #define PCIS_BRIDGE_ISA		0x01
239 #define PCIS_BRIDGE_EISA	0x02
240 #define PCIS_BRIDGE_MCA		0x03
241 #define PCIS_BRIDGE_PCI		0x04
242 #define PCIS_BRIDGE_PCMCIA	0x05
243 #define PCIS_BRIDGE_NUBUS	0x06
244 #define PCIS_BRIDGE_CARDBUS	0x07
245 #define PCIS_BRIDGE_RACEWAY	0x08
246 #define PCIS_BRIDGE_SEMITRANS	0x09
247 #define PCIS_BRIDGE_INFINI	0x0a
248 #define PCIS_BRIDGE_OTHER	0x80
249 
250 #define PCIC_SIMPLECOMM	0x07
251 #define PCIS_SIMPLECOMM_UART	0x00
252 #define PCIP_SIMPLECOMM_UART_16550A	0x02
253 #define PCIS_SIMPLECOMM_PAR	0x01
254 #define PCIS_SIMPLECOMM_MULTSER	0x02
255 #define PCIS_SIMPLECOMM_MODEM	0x03
256 #define PCIS_SIMPLECOMM_GPIB	0x04
257 #define PCIS_SIMPLECOMM_SMART	0x05
258 #define PCIS_SIMPLECOMM_OTHER	0x80
259 
260 #define PCIC_BASEPERIPH	0x08
261 #define PCIS_BASEPERIPH_PIC	0x00
262 #define PCIS_BASEPERIPH_DMA	0x01
263 #define PCIS_BASEPERIPH_TIMER	0x02
264 #define PCIS_BASEPERIPH_RTC	0x03
265 #define PCIS_BASEPERIPH_HOTPLUG	0x04
266 #define PCIS_BASEPERIPH_OTHER	0x80
267 
268 #define PCIC_INPUTDEV	0x09
269 #define PCIS_INPUTDEV_KEYBOARD	0x00
270 #define PCIS_INPUTDEV_DIGITIZER	0x01
271 #define PCIS_INPUTDEV_MOUSE	0x02
272 #define PCIS_INPUTDEV_SCANNER	0x03
273 #define PCIS_INPUTDEV_GAMEPORT	0x04
274 #define PCIS_INPUTDEV_OTHER	0x80
275 
276 #define PCIC_DOCKING	0x0a
277 #define PCIS_DOCKING_GENERIC	0x00
278 #define PCIS_DOCKING_OTHER	0x80
279 
280 #define PCIC_PROCESSOR	0x0b
281 #define PCIS_PROCESSOR_386	0x00
282 #define PCIS_PROCESSOR_486	0x01
283 #define PCIS_PROCESSOR_PENTIUM	0x02
284 #define PCIS_PROCESSOR_ALPHA	0x10
285 #define PCIS_PROCESSOR_POWERPC	0x20
286 #define PCIS_PROCESSOR_MIPS	0x30
287 #define PCIS_PROCESSOR_COPROC	0x40
288 
289 #define PCIC_SERIALBUS	0x0c
290 #define PCIS_SERIALBUS_FW	0x00
291 #define PCIS_SERIALBUS_ACCESS	0x01
292 #define PCIS_SERIALBUS_SSA	0x02
293 #define PCIS_SERIALBUS_USB	0x03
294 #define PCIS_SERIALBUS_FC	0x04
295 #define PCIS_SERIALBUS_SMBUS	0x05
296 #define PCIS_SERIALBUS_INFINI	0x06
297 #define PCIS_SERIALBUS_IPMI	0x07
298 #define PCIS_SERIALBUS_SERCOS	0x08
299 #define PCIS_SERIALBUS_CANBUS	0x09
300 
301 #define PCIC_WIRELESS	0x0d
302 #define PCIS_WIRELESS_IRDA	0x00
303 #define PCIS_WIRELESS_IR	0x01
304 #define PCIS_WIRELESS_RF	0x10
305 #define PCIS_WIRELESS_BLUETOOTH	0x11
306 #define PCIS_WIRELESS_BROADBAND	0x12
307 #define PCIS_WIRELESS_80211A	0x20
308 #define PCIS_WIRELESS_80211B	0x21
309 #define PCIS_WIRELESS_OTHER	0x80
310 
311 #define PCIC_I2O	0x0e
312 #define PCIS_I2O_10		0x00
313 
314 #define PCIC_SATELLITE	0x0f
315 #define PCIS_SATELLITE_TV	0x01
316 #define PCIS_SATELLITE_AUDIO	0x02
317 #define PCIS_SATELLITE_VOICE	0x03
318 #define PCIS_SATELLITE_DATA	0x04
319 
320 #define PCIC_CRYPTO	0x10
321 #define PCIS_CRYPTO_NETWORK	0x00
322 #define PCIS_CRYPTO_ENTERTAIN	0x10
323 #define PCIS_CRYPTO_OTHER	0x80
324 
325 #define PCIC_SIGPROC	0x11
326 #define PCIS_SIGPROC_DPIO	0x00
327 #define PCIS_SIGPROC_PERFCOUNT	0x01
328 #define PCIS_SIGPROC_COMMSYNC	0x10
329 #define PCIS_SIGPROC_MANAGEMENT	0x20
330 #define PCIS_SIGPROC_OTHER	0x80
331 
332 #define PCIC_OTHER	0xff
333 
334 /* PCI power manangement */
335 
336 #define PCIR_POWER_CAP		0x2
337 #define PCIM_PCAP_SPEC			0x0007
338 #define PCIM_PCAP_PMEREQCLK		0x0008
339 #define PCIM_PCAP_PMEREQPWR		0x0010
340 #define PCIM_PCAP_DEVSPECINIT		0x0020
341 #define PCIM_PCAP_DYNCLOCK		0x0040
342 #define PCIM_PCAP_SECCLOCK		0x00c0
343 #define PCIM_PCAP_CLOCKMASK		0x00c0
344 #define PCIM_PCAP_REQFULLCLOCK		0x0100
345 #define PCIM_PCAP_D1SUPP		0x0200
346 #define PCIM_PCAP_D2SUPP		0x0400
347 #define PCIM_PCAP_D0PME			0x1000
348 #define PCIM_PCAP_D1PME			0x2000
349 #define PCIM_PCAP_D2PME			0x4000
350 
351 #define PCIR_POWER_STATUS	0x4
352 #define PCIM_PSTAT_D0			0x0000
353 #define PCIM_PSTAT_D1			0x0001
354 #define PCIM_PSTAT_D2			0x0002
355 #define PCIM_PSTAT_D3			0x0003
356 #define PCIM_PSTAT_DMASK		0x0003
357 #define PCIM_PSTAT_REPENABLE		0x0010
358 #define PCIM_PSTAT_PMEENABLE		0x0100
359 #define PCIM_PSTAT_D0POWER		0x0000
360 #define PCIM_PSTAT_D1POWER		0x0200
361 #define PCIM_PSTAT_D2POWER		0x0400
362 #define PCIM_PSTAT_D3POWER		0x0600
363 #define PCIM_PSTAT_D0HEAT		0x0800
364 #define PCIM_PSTAT_D1HEAT		0x1000
365 #define PCIM_PSTAT_D2HEAT		0x1200
366 #define PCIM_PSTAT_D3HEAT		0x1400
367 #define PCIM_PSTAT_DATAUNKN		0x0000
368 #define PCIM_PSTAT_DATADIV10		0x2000
369 #define PCIM_PSTAT_DATADIV100		0x4000
370 #define PCIM_PSTAT_DATADIV1000		0x6000
371 #define PCIM_PSTAT_DATADIVMASK		0x6000
372 #define PCIM_PSTAT_PME			0x8000
373 
374 #define PCIR_POWER_PMCSR	0x6
375 #define PCIM_PMCSR_DCLOCK		0x10
376 #define PCIM_PMCSR_B2SUPP		0x20
377 #define PCIM_BMCSR_B3SUPP		0x40
378 #define PCIM_BMCSR_BPCE			0x80
379 
380 #define PCIR_POWER_DATA		0x7
381 
382 /* PCI Message Signalled Interrupts (MSI) */
383 #define PCIR_MSI_CTRL           0x2
384 #define PCIM_MSICTRL_VECTOR             0x0100
385 #define PCIM_MSICTRL_64BIT              0x0080
386 #define PCIM_MSICTRL_MME_MASK           0x0070
387 #define PCIM_MSICTRL_MME_1              0x0000
388 #define PCIM_MSICTRL_MME_2              0x0010
389 #define PCIM_MSICTRL_MME_4              0x0020
390 #define PCIM_MSICTRL_MME_8              0x0030
391 #define PCIM_MSICTRL_MME_16             0x0040
392 #define PCIM_MSICTRL_MME_32             0x0050
393 #define PCIM_MSICTRL_MMC_MASK           0x000E
394 #define PCIM_MSICTRL_MMC_1              0x0000
395 #define PCIM_MSICTRL_MMC_2              0x0002
396 #define PCIM_MSICTRL_MMC_4              0x0004
397 #define PCIM_MSICTRL_MMC_8              0x0006
398 #define PCIM_MSICTRL_MMC_16             0x0008
399 #define PCIM_MSICTRL_MMC_32             0x000A
400 #define PCIM_MSICTRL_MSI_ENABLE         0x0001
401 #define PCIR_MSI_ADDR           0x4
402 #define PCIR_MSI_ADDR_HIGH      0x8
403 #define PCIR_MSI_DATA           0x8
404 #define PCIR_MSI_DATA_64BIT     0xc
405 #define PCIR_MSI_MASK           0x10
406 #define PCIR_MSI_PENDING        0x14
407 
408 /* PCI-X definitions */
409 #define PCIXR_COMMAND	0x96
410 #define PCIXR_DEVADDR	0x98
411 #define PCIXM_DEVADDR_FNUM	0x0003	/* Function Number */
412 #define PCIXM_DEVADDR_DNUM	0x00F8	/* Device Number */
413 #define PCIXM_DEVADDR_BNUM	0xFF00	/* Bus Number */
414 #define PCIXR_STATUS	0x9A
415 #define PCIXM_STATUS_64BIT	0x0001	/* Active 64bit connection to device. */
416 #define PCIXM_STATUS_133CAP	0x0002	/* Device is 133MHz capable */
417 #define PCIXM_STATUS_SCDISC	0x0004	/* Split Completion Discarded */
418 #define PCIXM_STATUS_UNEXPSC	0x0008	/* Unexpected Split Completion */
419 #define PCIXM_STATUS_CMPLEXDEV	0x0010	/* Device Complexity (set == bridge) */
420 #define PCIXM_STATUS_MAXMRDBC	0x0060	/* Maximum Burst Read Count */
421 #define PCIXM_STATUS_MAXSPLITS	0x0380	/* Maximum Split Transactions */
422 #define PCIXM_STATUS_MAXCRDS	0x1C00	/* Maximum Cumulative Read Size */
423 #define PCIXM_STATUS_RCVDSCEM	0x2000	/* Received a Split Comp w/Error msg */
424 
425 /* for compatibility to FreeBSD-2.2 and 3.x versions of PCI code */
426 
427 #if defined(_KERNEL) && !defined(KLD_MODULE)
428 #include "opt_compat_oldpci.h"
429 #endif
430 
431 #ifdef COMPAT_OLDPCI
432 
433 #define PCI_ID_REG		0x00
434 #define PCI_COMMAND_STATUS_REG	0x04
435 #define	PCI_COMMAND_IO_ENABLE		0x00000001
436 #define	PCI_COMMAND_MEM_ENABLE		0x00000002
437 #define PCI_CLASS_REG		0x08
438 #define PCI_CLASS_MASK			0xff000000
439 #define PCI_SUBCLASS_MASK		0x00ff0000
440 #define	PCI_REVISION_MASK		0x000000ff
441 #define PCI_CLASS_PREHISTORIC		0x00000000
442 #define PCI_SUBCLASS_PREHISTORIC_VGA		0x00010000
443 #define PCI_CLASS_MASS_STORAGE		0x01000000
444 #define PCI_CLASS_DISPLAY		0x03000000
445 #define PCI_SUBCLASS_DISPLAY_VGA		0x00000000
446 #define PCI_CLASS_BRIDGE		0x06000000
447 #define PCI_MAP_REG_START	0x10
448 #define	PCI_MAP_REG_END		0x28
449 #define	PCI_MAP_IO			0x00000001
450 #define	PCI_INTERRUPT_REG	0x3c
451 
452 #endif /* COMPAT_OLDPCI */
453