xref: /freebsd/sys/dev/ahci/ahci_pci.c (revision 77013d11e6483b970af25e13c9b892075742f7e5)
1 /*-
2  * Copyright (c) 2009-2012 Alexander Motin <mav@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, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
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 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/bus.h>
35 #include <sys/conf.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/sysctl.h>
41 #include <sys/taskqueue.h>
42 #include <sys/tree.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/iommu/iommu.h>
50 #include "ahci.h"
51 
52 static int force_ahci = 1;
53 TUNABLE_INT("hw.ahci.force", &force_ahci);
54 
55 static const struct {
56 	uint32_t	id;
57 	uint8_t		rev;
58 	const char	*name;
59 	int		quirks;
60 } ahci_ids[] = {
61 	{0x43801002, 0x00, "AMD SB600",
62 	    AHCI_Q_NOMSI | AHCI_Q_ATI_PMP_BUG | AHCI_Q_MAXIO_64K},
63 	{0x43901002, 0x00, "AMD SB7x0/SB8x0/SB9x0",
64 	    AHCI_Q_ATI_PMP_BUG | AHCI_Q_1MSI},
65 	{0x43911002, 0x00, "AMD SB7x0/SB8x0/SB9x0",
66 	    AHCI_Q_ATI_PMP_BUG | AHCI_Q_1MSI},
67 	{0x43921002, 0x00, "AMD SB7x0/SB8x0/SB9x0",
68 	    AHCI_Q_ATI_PMP_BUG | AHCI_Q_1MSI},
69 	{0x43931002, 0x00, "AMD SB7x0/SB8x0/SB9x0",
70 	    AHCI_Q_ATI_PMP_BUG | AHCI_Q_1MSI},
71 	{0x43941002, 0x00, "AMD SB7x0/SB8x0/SB9x0",
72 	    AHCI_Q_ATI_PMP_BUG | AHCI_Q_1MSI},
73 	/* Not sure SB8x0/SB9x0 needs this quirk. Be conservative though */
74 	{0x43951002, 0x00, "AMD SB8x0/SB9x0",	AHCI_Q_ATI_PMP_BUG},
75 	{0x43b61022, 0x00, "AMD X399",		0},
76 	{0x43b51022, 0x00, "AMD 300 Series",	0}, /* X370 */
77 	{0x43b71022, 0x00, "AMD 300 Series",	0}, /* B350 */
78 	{0x78001022, 0x00, "AMD Hudson-2",	0},
79 	{0x78011022, 0x00, "AMD Hudson-2",	0},
80 	{0x78021022, 0x00, "AMD Hudson-2",	0},
81 	{0x78031022, 0x00, "AMD Hudson-2",	0},
82 	{0x78041022, 0x00, "AMD Hudson-2",	0},
83 	{0x79001022, 0x00, "AMD KERNCZ",	0},
84 	{0x79011022, 0x00, "AMD KERNCZ",	0},
85 	{0x79021022, 0x00, "AMD KERNCZ",	0},
86 	{0x79031022, 0x00, "AMD KERNCZ",	0},
87 	{0x79041022, 0x00, "AMD KERNCZ",	0},
88 	{0x06011b21, 0x00, "ASMedia ASM1060",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
89 	{0x06021b21, 0x00, "ASMedia ASM1060",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
90 	{0x06111b21, 0x00, "ASMedia ASM1061",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
91 	{0x06121b21, 0x00, "ASMedia ASM1062",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
92 	{0x06201b21, 0x00, "ASMedia ASM106x",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
93 	{0x06211b21, 0x00, "ASMedia ASM106x",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
94 	{0x06221b21, 0x00, "ASMedia ASM106x",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
95 	{0x06241b21, 0x00, "ASMedia ASM106x",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
96 	{0x06251b21, 0x00, "ASMedia ASM106x",	AHCI_Q_NOCCS|AHCI_Q_NOAUX},
97 	{0x10621b21, 0x00, "ASMedia ASM116x",	0},
98 	{0x10641b21, 0x00, "ASMedia ASM116x",	0},
99 	{0x11641b21, 0x00, "ASMedia ASM116x",	0},
100 	{0x11651b21, 0x00, "ASMedia ASM116x",	0},
101 	{0x11661b21, 0x00, "ASMedia ASM116x",	0},
102 	{0x79011d94, 0x00, "Hygon KERNCZ",	0},
103 	{0x26528086, 0x00, "Intel ICH6",	AHCI_Q_NOFORCE},
104 	{0x26538086, 0x00, "Intel ICH6M",	AHCI_Q_NOFORCE},
105 	{0x26818086, 0x00, "Intel ESB2",	0},
106 	{0x26828086, 0x00, "Intel ESB2",	0},
107 	{0x26838086, 0x00, "Intel ESB2",	0},
108 	{0x27c18086, 0x00, "Intel ICH7",	0},
109 	{0x27c38086, 0x00, "Intel ICH7",	0},
110 	{0x27c58086, 0x00, "Intel ICH7M",	0},
111 	{0x27c68086, 0x00, "Intel ICH7M",	0},
112 	{0x28218086, 0x00, "Intel ICH8",	0},
113 	{0x28228086, 0x00, "Intel ICH8+ (RAID)",	0},
114 	{0x28248086, 0x00, "Intel ICH8",	0},
115 	{0x28298086, 0x00, "Intel ICH8M",	0},
116 	{0x282a8086, 0x00, "Intel ICH8M+ (RAID)",	0},
117 	{0x29228086, 0x00, "Intel ICH9",	0},
118 	{0x29238086, 0x00, "Intel ICH9",	0},
119 	{0x29248086, 0x00, "Intel ICH9",	0},
120 	{0x29258086, 0x00, "Intel ICH9",	0},
121 	{0x29278086, 0x00, "Intel ICH9",	0},
122 	{0x29298086, 0x00, "Intel ICH9M",	0},
123 	{0x292a8086, 0x00, "Intel ICH9M",	0},
124 	{0x292b8086, 0x00, "Intel ICH9M",	0},
125 	{0x292c8086, 0x00, "Intel ICH9M",	0},
126 	{0x292f8086, 0x00, "Intel ICH9M",	0},
127 	{0x294d8086, 0x00, "Intel ICH9",	0},
128 	{0x294e8086, 0x00, "Intel ICH9M",	0},
129 	{0x3a058086, 0x00, "Intel ICH10 (RAID)",	0},
130 	{0x3a228086, 0x00, "Intel ICH10",	0},
131 	{0x3a258086, 0x00, "Intel ICH10 (RAID)",	0},
132 	{0x3b228086, 0x00, "Intel Ibex Peak",	0},
133 	{0x3b238086, 0x00, "Intel Ibex Peak",	0},
134 	{0x3b258086, 0x00, "Intel Ibex Peak (RAID)",	0},
135 	{0x3b298086, 0x00, "Intel Ibex Peak-M",	0},
136 	{0x3b2c8086, 0x00, "Intel Ibex Peak-M (RAID)",	0},
137 	{0x3b2f8086, 0x00, "Intel Ibex Peak-M",	0},
138 	{0x19b08086, 0x00, "Intel Denverton",	0},
139 	{0x19b18086, 0x00, "Intel Denverton",	0},
140 	{0x19b28086, 0x00, "Intel Denverton",	0},
141 	{0x19b38086, 0x00, "Intel Denverton",	0},
142 	{0x19b48086, 0x00, "Intel Denverton",	0},
143 	{0x19b58086, 0x00, "Intel Denverton",	0},
144 	{0x19b68086, 0x00, "Intel Denverton",	0},
145 	{0x19b78086, 0x00, "Intel Denverton",	0},
146 	{0x19be8086, 0x00, "Intel Denverton",	0},
147 	{0x19bf8086, 0x00, "Intel Denverton",	0},
148 	{0x19c08086, 0x00, "Intel Denverton",	0},
149 	{0x19c18086, 0x00, "Intel Denverton",	0},
150 	{0x19c28086, 0x00, "Intel Denverton",	0},
151 	{0x19c38086, 0x00, "Intel Denverton",	0},
152 	{0x19c48086, 0x00, "Intel Denverton",	0},
153 	{0x19c58086, 0x00, "Intel Denverton",	0},
154 	{0x19c68086, 0x00, "Intel Denverton",	0},
155 	{0x19c78086, 0x00, "Intel Denverton",	0},
156 	{0x19ce8086, 0x00, "Intel Denverton",	0},
157 	{0x19cf8086, 0x00, "Intel Denverton",	0},
158 	{0x1c028086, 0x00, "Intel Cougar Point",	0},
159 	{0x1c038086, 0x00, "Intel Cougar Point",	0},
160 	{0x1c048086, 0x00, "Intel Cougar Point (RAID)",	0},
161 	{0x1c058086, 0x00, "Intel Cougar Point (RAID)",	0},
162 	{0x1c068086, 0x00, "Intel Cougar Point (RAID)",	0},
163 	{0x1d028086, 0x00, "Intel Patsburg",	0},
164 	{0x1d048086, 0x00, "Intel Patsburg",	0},
165 	{0x1d068086, 0x00, "Intel Patsburg",	0},
166 	{0x28268086, 0x00, "Intel Patsburg+ (RAID)",	0},
167 	{0x1e028086, 0x00, "Intel Panther Point",	0},
168 	{0x1e038086, 0x00, "Intel Panther Point",	0},
169 	{0x1e048086, 0x00, "Intel Panther Point (RAID)",	0},
170 	{0x1e058086, 0x00, "Intel Panther Point (RAID)",	0},
171 	{0x1e068086, 0x00, "Intel Panther Point (RAID)",	0},
172 	{0x1e078086, 0x00, "Intel Panther Point (RAID)",	0},
173 	{0x1e0e8086, 0x00, "Intel Panther Point (RAID)",	0},
174 	{0x1e0f8086, 0x00, "Intel Panther Point (RAID)",	0},
175 	{0x1f228086, 0x00, "Intel Avoton",	0},
176 	{0x1f238086, 0x00, "Intel Avoton",	0},
177 	{0x1f248086, 0x00, "Intel Avoton (RAID)",	0},
178 	{0x1f258086, 0x00, "Intel Avoton (RAID)",	0},
179 	{0x1f268086, 0x00, "Intel Avoton (RAID)",	0},
180 	{0x1f278086, 0x00, "Intel Avoton (RAID)",	0},
181 	{0x1f2e8086, 0x00, "Intel Avoton (RAID)",	0},
182 	{0x1f2f8086, 0x00, "Intel Avoton (RAID)",	0},
183 	{0x1f328086, 0x00, "Intel Avoton",	0},
184 	{0x1f338086, 0x00, "Intel Avoton",	0},
185 	{0x1f348086, 0x00, "Intel Avoton (RAID)",	0},
186 	{0x1f358086, 0x00, "Intel Avoton (RAID)",	0},
187 	{0x1f368086, 0x00, "Intel Avoton (RAID)",	0},
188 	{0x1f378086, 0x00, "Intel Avoton (RAID)",	0},
189 	{0x1f3e8086, 0x00, "Intel Avoton (RAID)",	0},
190 	{0x1f3f8086, 0x00, "Intel Avoton (RAID)",	0},
191 	{0x23a38086, 0x00, "Intel Coleto Creek",	0},
192 	{0x31e38086, 0x00, "Intel Gemini Lake",	0},
193 	{0x5ae38086, 0x00, "Intel Apollo Lake",	0},
194 	{0x8c028086, 0x00, "Intel Lynx Point",	0},
195 	{0x8c038086, 0x00, "Intel Lynx Point",	0},
196 	{0x8c048086, 0x00, "Intel Lynx Point (RAID)",	0},
197 	{0x8c058086, 0x00, "Intel Lynx Point (RAID)",	0},
198 	{0x8c068086, 0x00, "Intel Lynx Point (RAID)",	0},
199 	{0x8c078086, 0x00, "Intel Lynx Point (RAID)",	0},
200 	{0x8c0e8086, 0x00, "Intel Lynx Point (RAID)",	0},
201 	{0x8c0f8086, 0x00, "Intel Lynx Point (RAID)",	0},
202 	{0x8c828086, 0x00, "Intel Wildcat Point",	0},
203 	{0x8c838086, 0x00, "Intel Wildcat Point",	0},
204 	{0x8c848086, 0x00, "Intel Wildcat Point (RAID)",	0},
205 	{0x8c858086, 0x00, "Intel Wildcat Point (RAID)",	0},
206 	{0x8c868086, 0x00, "Intel Wildcat Point (RAID)",	0},
207 	{0x8c878086, 0x00, "Intel Wildcat Point (RAID)",	0},
208 	{0x8c8e8086, 0x00, "Intel Wildcat Point (RAID)",	0},
209 	{0x8c8f8086, 0x00, "Intel Wildcat Point (RAID)",	0},
210 	{0x8d028086, 0x00, "Intel Wellsburg",	0},
211 	{0x8d048086, 0x00, "Intel Wellsburg (RAID)",	0},
212 	{0x8d068086, 0x00, "Intel Wellsburg (RAID)",	0},
213 	{0x8d628086, 0x00, "Intel Wellsburg",	0},
214 	{0x8d648086, 0x00, "Intel Wellsburg (RAID)",	0},
215 	{0x8d668086, 0x00, "Intel Wellsburg (RAID)",	0},
216 	{0x8d6e8086, 0x00, "Intel Wellsburg (RAID)",	0},
217 	{0x28238086, 0x00, "Intel Wellsburg+ (RAID)",	0},
218 	{0x28278086, 0x00, "Intel Wellsburg+ (RAID)",	0},
219 	{0x9c028086, 0x00, "Intel Lynx Point-LP",	0},
220 	{0x9c038086, 0x00, "Intel Lynx Point-LP",	0},
221 	{0x9c048086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
222 	{0x9c058086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
223 	{0x9c068086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
224 	{0x9c078086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
225 	{0x9c0e8086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
226 	{0x9c0f8086, 0x00, "Intel Lynx Point-LP (RAID)",	0},
227 	{0x9c838086, 0x00, "Intel Wildcat Point-LP",	0},
228 	{0x9c858086, 0x00, "Intel Wildcat Point-LP (RAID)",	0},
229 	{0x9c878086, 0x00, "Intel Wildcat Point-LP (RAID)",	0},
230 	{0x9c8f8086, 0x00, "Intel Wildcat Point-LP (RAID)",	0},
231 	{0x9d038086, 0x00, "Intel Sunrise Point-LP",	0},
232 	{0x9d058086, 0x00, "Intel Sunrise Point-LP (RAID)",	0},
233 	{0x9d078086, 0x00, "Intel Sunrise Point-LP (RAID)",	0},
234 	{0xa1028086, 0x00, "Intel Sunrise Point",	0},
235 	{0xa1038086, 0x00, "Intel Sunrise Point",	0},
236 	{0xa1058086, 0x00, "Intel Sunrise Point (RAID)",	0},
237 	{0xa1068086, 0x00, "Intel Sunrise Point (RAID)",	0},
238 	{0xa1078086, 0x00, "Intel Sunrise Point (RAID)",	0},
239 	{0xa10f8086, 0x00, "Intel Sunrise Point (RAID)",	0},
240 	{0xa1828086, 0x00, "Intel Lewisburg",	0},
241 	{0xa1868086, 0x00, "Intel Lewisburg (RAID)",	0},
242 	{0xa1d28086, 0x00, "Intel Lewisburg",	0},
243 	{0xa1d68086, 0x00, "Intel Lewisburg (RAID)",	0},
244 	{0xa2028086, 0x00, "Intel Lewisburg",	0},
245 	{0xa2068086, 0x00, "Intel Lewisburg (RAID)",	0},
246 	{0xa2528086, 0x00, "Intel Lewisburg",	0},
247 	{0xa2568086, 0x00, "Intel Lewisburg (RAID)",	0},
248 	{0xa2828086, 0x00, "Intel Union Point",	0},
249 	{0xa2868086, 0x00, "Intel Union Point (RAID)",	0},
250 	{0xa28e8086, 0x00, "Intel Union Point (RAID)",	0},
251 	{0xa3528086, 0x00, "Intel Cannon Lake",	0},
252 	{0xa3538086, 0x00, "Intel Cannon Lake",	0},
253 	{0x23238086, 0x00, "Intel DH89xxCC",	0},
254 	{0x2360197b, 0x00, "JMicron JMB360",	0},
255 	{0x2361197b, 0x00, "JMicron JMB361",	AHCI_Q_NOFORCE | AHCI_Q_1CH},
256 	{0x2362197b, 0x00, "JMicron JMB362",	0},
257 	{0x2363197b, 0x00, "JMicron JMB363",	AHCI_Q_NOFORCE},
258 	{0x2365197b, 0x00, "JMicron JMB365",	AHCI_Q_NOFORCE},
259 	{0x2366197b, 0x00, "JMicron JMB366",	AHCI_Q_NOFORCE},
260 	{0x2368197b, 0x00, "JMicron JMB368",	AHCI_Q_NOFORCE},
261 	{0x2392197b, 0x00, "JMicron JMB388",	AHCI_Q_IOMMU_BUSWIDE},
262 	{0x0585197b, 0x00, "JMicron JMB58x",	0},
263 	{0x01221c28, 0x00, "Lite-On Plextor M6E (Marvell 88SS9183)",
264 	    AHCI_Q_IOMMU_BUSWIDE},
265 	{0x611111ab, 0x00, "Marvell 88SE6111",	AHCI_Q_NOFORCE | AHCI_Q_NOPMP |
266 	    AHCI_Q_1CH | AHCI_Q_EDGEIS},
267 	{0x612111ab, 0x00, "Marvell 88SE6121",	AHCI_Q_NOFORCE | AHCI_Q_NOPMP |
268 	    AHCI_Q_2CH | AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT},
269 	{0x614111ab, 0x00, "Marvell 88SE6141",	AHCI_Q_NOFORCE | AHCI_Q_NOPMP |
270 	    AHCI_Q_4CH | AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT},
271 	{0x614511ab, 0x00, "Marvell 88SE6145",	AHCI_Q_NOFORCE | AHCI_Q_NOPMP |
272 	    AHCI_Q_4CH | AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT},
273 	{0x91201b4b, 0x00, "Marvell 88SE912x",	AHCI_Q_EDGEIS |
274 	    AHCI_Q_IOMMU_BUSWIDE},
275 	{0x91231b4b, 0x11, "Marvell 88SE912x",	AHCI_Q_ALTSIG |
276 	    AHCI_Q_IOMMU_BUSWIDE},
277 	{0x91231b4b, 0x00, "Marvell 88SE912x",	AHCI_Q_EDGEIS | AHCI_Q_SATA2 |
278 	    AHCI_Q_IOMMU_BUSWIDE},
279 	{0x91251b4b, 0x00, "Marvell 88SE9125",	0},
280 	{0x91281b4b, 0x00, "Marvell 88SE9128",	AHCI_Q_ALTSIG |
281 	    AHCI_Q_IOMMU_BUSWIDE},
282 	{0x91301b4b, 0x00, "Marvell 88SE9130",  AHCI_Q_ALTSIG |
283 	    AHCI_Q_IOMMU_BUSWIDE},
284 	{0x91701b4b, 0x00, "Marvell 88SE9170",	AHCI_Q_IOMMU_BUSWIDE},
285 	{0x91721b4b, 0x00, "Marvell 88SE9172",	AHCI_Q_IOMMU_BUSWIDE},
286 	{0x917a1b4b, 0x00, "Marvell 88SE917A",	AHCI_Q_IOMMU_BUSWIDE},
287 	{0x91821b4b, 0x00, "Marvell 88SE9182",	AHCI_Q_IOMMU_BUSWIDE},
288 	{0x91831b4b, 0x00, "Marvell 88SS9183",	AHCI_Q_IOMMU_BUSWIDE},
289 	{0x91a01b4b, 0x00, "Marvell 88SE91Ax",	AHCI_Q_IOMMU_BUSWIDE},
290 	{0x92151b4b, 0x00, "Marvell 88SE9215",  0},
291 	{0x92201b4b, 0x00, "Marvell 88SE9220",  AHCI_Q_ALTSIG |
292 	    AHCI_Q_IOMMU_BUSWIDE},
293 	{0x92301b4b, 0x00, "Marvell 88SE9230",  AHCI_Q_ALTSIG |
294 	    AHCI_Q_IOMMU_BUSWIDE},
295 	{0x92351b4b, 0x00, "Marvell 88SE9235",  0},
296 	{0x06201103, 0x00, "HighPoint RocketRAID 620",	0},
297 	{0x06201b4b, 0x00, "HighPoint RocketRAID 620",	0},
298 	{0x06221103, 0x00, "HighPoint RocketRAID 622",	0},
299 	{0x06221b4b, 0x00, "HighPoint RocketRAID 622",	0},
300 	{0x06401103, 0x00, "HighPoint RocketRAID 640",	0},
301 	{0x06401b4b, 0x00, "HighPoint RocketRAID 640",	0},
302 	{0x06441103, 0x00, "HighPoint RocketRAID 644",	0},
303 	{0x06441b4b, 0x00, "HighPoint RocketRAID 644",	0},
304 	{0x06411103, 0x00, "HighPoint RocketRAID 640L",	0},
305 	{0x06421103, 0x00, "HighPoint RocketRAID 642L",	AHCI_Q_IOMMU_BUSWIDE},
306 	{0x06451103, 0x00, "HighPoint RocketRAID 644L",	AHCI_Q_IOMMU_BUSWIDE},
307 	{0x044c10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
308 	{0x044d10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
309 	{0x044e10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
310 	{0x044f10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
311 	{0x045c10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
312 	{0x045d10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
313 	{0x045e10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
314 	{0x045f10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
315 	{0x055010de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
316 	{0x055110de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
317 	{0x055210de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
318 	{0x055310de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
319 	{0x055410de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
320 	{0x055510de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
321 	{0x055610de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
322 	{0x055710de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
323 	{0x055810de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
324 	{0x055910de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
325 	{0x055A10de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
326 	{0x055B10de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
327 	{0x058410de, 0x00, "NVIDIA MCP67",	AHCI_Q_NOAA},
328 	{0x07f010de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
329 	{0x07f110de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
330 	{0x07f210de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
331 	{0x07f310de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
332 	{0x07f410de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
333 	{0x07f510de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
334 	{0x07f610de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
335 	{0x07f710de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
336 	{0x07f810de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
337 	{0x07f910de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
338 	{0x07fa10de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
339 	{0x07fb10de, 0x00, "NVIDIA MCP73",	AHCI_Q_NOAA},
340 	{0x0ad010de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
341 	{0x0ad110de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
342 	{0x0ad210de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
343 	{0x0ad310de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
344 	{0x0ad410de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
345 	{0x0ad510de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
346 	{0x0ad610de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
347 	{0x0ad710de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
348 	{0x0ad810de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
349 	{0x0ad910de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
350 	{0x0ada10de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
351 	{0x0adb10de, 0x00, "NVIDIA MCP77",	AHCI_Q_NOAA},
352 	{0x0ab410de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
353 	{0x0ab510de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
354 	{0x0ab610de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
355 	{0x0ab710de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
356 	{0x0ab810de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
357 	{0x0ab910de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
358 	{0x0aba10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
359 	{0x0abb10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
360 	{0x0abc10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
361 	{0x0abd10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
362 	{0x0abe10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
363 	{0x0abf10de, 0x00, "NVIDIA MCP79",	AHCI_Q_NOAA},
364 	{0x0d8410de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
365 	{0x0d8510de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOFORCE|AHCI_Q_NOAA},
366 	{0x0d8610de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
367 	{0x0d8710de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
368 	{0x0d8810de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
369 	{0x0d8910de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
370 	{0x0d8a10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
371 	{0x0d8b10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
372 	{0x0d8c10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
373 	{0x0d8d10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
374 	{0x0d8e10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
375 	{0x0d8f10de, 0x00, "NVIDIA MCP89",	AHCI_Q_NOAA},
376 	{0x3781105a, 0x00, "Promise TX8660",	0},
377 	{0x33491106, 0x00, "VIA VT8251",	AHCI_Q_NOPMP|AHCI_Q_NONCQ},
378 	{0x62871106, 0x00, "VIA VT8251",	AHCI_Q_NOPMP|AHCI_Q_NONCQ},
379 	{0x11841039, 0x00, "SiS 966",		0},
380 	{0x11851039, 0x00, "SiS 968",		0},
381 	{0x01861039, 0x00, "SiS 968",		0},
382 	{0xa01c177d, 0x00, "ThunderX",		AHCI_Q_ABAR0|AHCI_Q_1MSI},
383 	{0x00311c36, 0x00, "Annapurna",		AHCI_Q_FORCE_PI|AHCI_Q_RESTORE_CAP|AHCI_Q_NOMSIX},
384 	{0x1600144d, 0x00, "Samsung",		AHCI_Q_NOMSI},
385 	{0x00000000, 0x00, NULL,		0}
386 };
387 
388 static int
389 ahci_pci_ctlr_reset(device_t dev)
390 {
391 
392 	return(ahci_ctlr_reset(dev));
393 }
394 
395 static int
396 ahci_probe(device_t dev)
397 {
398 	char buf[64];
399 	int i, valid = 0;
400 	uint32_t devid = pci_get_devid(dev);
401 	uint8_t revid = pci_get_revid(dev);
402 
403 	/*
404 	 * Ensure it is not a PCI bridge (some vendors use
405 	 * the same PID and VID in PCI bridge and AHCI cards).
406 	 */
407 	if (pci_get_class(dev) == PCIC_BRIDGE)
408 		return (ENXIO);
409 
410 	/* Is this a possible AHCI candidate? */
411 	if (pci_get_class(dev) == PCIC_STORAGE &&
412 	    pci_get_subclass(dev) == PCIS_STORAGE_SATA &&
413 	    pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0)
414 		valid = 1;
415 	else if (pci_get_class(dev) == PCIC_STORAGE &&
416 	    pci_get_subclass(dev) == PCIS_STORAGE_RAID)
417 		valid = 2;
418 	/* Is this a known AHCI chip? */
419 	for (i = 0; ahci_ids[i].id != 0; i++) {
420 		if (ahci_ids[i].id == devid &&
421 		    ahci_ids[i].rev <= revid &&
422 		    (valid || (force_ahci == 1 &&
423 		     !(ahci_ids[i].quirks & AHCI_Q_NOFORCE)))) {
424 			/* Do not attach JMicrons with single PCI function. */
425 			if (pci_get_vendor(dev) == 0x197b &&
426 			    (ahci_ids[i].quirks & AHCI_Q_NOFORCE) &&
427 			    (pci_read_config(dev, 0xdf, 1) & 0x40) == 0)
428 				return (ENXIO);
429 			snprintf(buf, sizeof(buf), "%s AHCI SATA controller",
430 			    ahci_ids[i].name);
431 			device_set_desc_copy(dev, buf);
432 			return (BUS_PROBE_DEFAULT);
433 		}
434 	}
435 	if (valid != 1)
436 		return (ENXIO);
437 	device_set_desc_copy(dev, "AHCI SATA controller");
438 	return (BUS_PROBE_DEFAULT);
439 }
440 
441 static int
442 ahci_ata_probe(device_t dev)
443 {
444 	char buf[64];
445 	int i;
446 	uint32_t devid = pci_get_devid(dev);
447 	uint8_t revid = pci_get_revid(dev);
448 
449 	if ((intptr_t)device_get_ivars(dev) >= 0)
450 		return (ENXIO);
451 	/* Is this a known AHCI chip? */
452 	for (i = 0; ahci_ids[i].id != 0; i++) {
453 		if (ahci_ids[i].id == devid &&
454 		    ahci_ids[i].rev <= revid) {
455 			snprintf(buf, sizeof(buf), "%s AHCI SATA controller",
456 			    ahci_ids[i].name);
457 			device_set_desc_copy(dev, buf);
458 			return (BUS_PROBE_DEFAULT);
459 		}
460 	}
461 	device_set_desc_copy(dev, "AHCI SATA controller");
462 	return (BUS_PROBE_DEFAULT);
463 }
464 
465 static int
466 ahci_pci_read_msix_bars(device_t dev, uint8_t *table_bar, uint8_t *pba_bar)
467 {
468 	int cap_offset = 0, ret;
469 	uint32_t val;
470 
471 	if ((table_bar == NULL) || (pba_bar == NULL))
472 		return (EINVAL);
473 
474 	ret = pci_find_cap(dev, PCIY_MSIX, &cap_offset);
475 	if (ret != 0)
476 		return (EINVAL);
477 
478 	val = pci_read_config(dev, cap_offset + PCIR_MSIX_TABLE, 4);
479 	*table_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK);
480 
481 	val = pci_read_config(dev, cap_offset + PCIR_MSIX_PBA, 4);
482 	*pba_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK);
483 
484 	return (0);
485 }
486 
487 static int
488 ahci_pci_attach(device_t dev)
489 {
490 	struct ahci_controller *ctlr = device_get_softc(dev);
491 	int	error, i;
492 	uint32_t devid = pci_get_devid(dev);
493 	uint8_t revid = pci_get_revid(dev);
494 	int msi_count, msix_count;
495 	uint8_t table_bar = 0, pba_bar = 0;
496 	uint32_t caps, pi;
497 
498 	msi_count = pci_msi_count(dev);
499 	msix_count = pci_msix_count(dev);
500 
501 	i = 0;
502 	while (ahci_ids[i].id != 0 &&
503 	    (ahci_ids[i].id != devid ||
504 	     ahci_ids[i].rev > revid))
505 		i++;
506 	ctlr->quirks = ahci_ids[i].quirks;
507 
508 	if (ctlr->quirks & AHCI_Q_IOMMU_BUSWIDE) {
509 		/*
510 		 * The controller issues DMA requests from PCI function 1,
511 		 * but the device is not multifunction.
512 		 * Ref: https://bugzilla.kernel.org/show_bug.cgi?id=42679
513 		 */
514 		bus_dma_iommu_set_buswide(dev);
515 	}
516 
517 	/* Limit speed for my onboard JMicron external port.
518 	 * It is not eSATA really, limit to SATA 1 */
519 	if (pci_get_devid(dev) == 0x2363197b &&
520 	    pci_get_subvendor(dev) == 0x1043 &&
521 	    pci_get_subdevice(dev) == 0x81e4)
522 		ctlr->quirks |= AHCI_Q_SATA1_UNIT0;
523 	resource_int_value(device_get_name(dev), device_get_unit(dev),
524 	    "quirks", &ctlr->quirks);
525 	ctlr->vendorid = pci_get_vendor(dev);
526 	ctlr->deviceid = pci_get_device(dev);
527 	ctlr->subvendorid = pci_get_subvendor(dev);
528 	ctlr->subdeviceid = pci_get_subdevice(dev);
529 
530 	/* Default AHCI Base Address is BAR(5), Cavium uses BAR(0) */
531 	if (ctlr->quirks & AHCI_Q_ABAR0)
532 		ctlr->r_rid = PCIR_BAR(0);
533 	else
534 		ctlr->r_rid = PCIR_BAR(5);
535 	if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
536 	    &ctlr->r_rid, RF_ACTIVE)))
537 		return ENXIO;
538 
539 	/*
540 	 * Intel RAID hardware can remap NVMe devices inside its BAR.
541 	 * Try to detect this. Either we have to add the device
542 	 * here, or the user has to change the mode in the BIOS
543 	 * from RST to AHCI.
544 	 */
545 	if (pci_get_vendor(dev) == 0x8086) {
546 		uint32_t vscap;
547 
548 		vscap = ATA_INL(ctlr->r_mem, AHCI_VSCAP);
549 		if (vscap & 1) {
550 			uint32_t cap = ATA_INL(ctlr->r_mem, 0x800); /* Intel's REMAP CAP */
551 			int i;
552 
553 			ctlr->remap_offset = 0x4000;
554 			ctlr->remap_size = 0x4000;
555 
556 			/*
557 			 * Check each of the devices that might be remapped to
558 			 * make sure they are an nvme device. At the present,
559 			 * nvme are the only known devices remapped.
560 			 */
561 			for (i = 0; i < 3; i++) {
562 				if (cap & (1 << i) &&
563 				    (ATA_INL(ctlr->r_mem, 0x880 + i * 0x80) ==
564 				     ((PCIC_STORAGE << 16) |
565 				      (PCIS_STORAGE_NVM << 8) |
566 				      PCIP_STORAGE_NVM_ENTERPRISE_NVMHCI_1_0))) {
567 					ctlr->remapped_devices++;
568 				}
569 			}
570 
571 			/* If we have any remapped device, disable MSI */
572 			if (ctlr->remapped_devices > 0) {
573 				device_printf(dev, "Detected %d nvme remapped devices\n",
574 				    ctlr->remapped_devices);
575 				ctlr->quirks |= (AHCI_Q_NOMSIX | AHCI_Q_NOMSI);
576 			}
577 		}
578 	}
579 
580 	if (ctlr->quirks & AHCI_Q_NOMSIX)
581 		msix_count = 0;
582 
583 	/* Read MSI-x BAR IDs if supported */
584 	if (msix_count > 0) {
585 		error = ahci_pci_read_msix_bars(dev, &table_bar, &pba_bar);
586 		if (error == 0) {
587 			ctlr->r_msix_tab_rid = table_bar;
588 			ctlr->r_msix_pba_rid = pba_bar;
589 		} else {
590 			/* Failed to read BARs, disable MSI-x */
591 			msix_count = 0;
592 		}
593 	}
594 
595 	/* Allocate resources for MSI-x table and PBA */
596 	if (msix_count > 0) {
597 		/*
598 		 * Allocate new MSI-x table only if not
599 		 * allocated before.
600 		 */
601 		ctlr->r_msix_table = NULL;
602 		if (ctlr->r_msix_tab_rid != ctlr->r_rid) {
603 			/* Separate BAR for MSI-x */
604 			ctlr->r_msix_table = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
605 			    &ctlr->r_msix_tab_rid, RF_ACTIVE);
606 			if (ctlr->r_msix_table == NULL) {
607 				ahci_free_mem(dev);
608 				return (ENXIO);
609 			}
610 		}
611 
612 		/*
613 		 * Allocate new PBA table only if not
614 		 * allocated before.
615 		 */
616 		ctlr->r_msix_pba = NULL;
617 		if ((ctlr->r_msix_pba_rid != ctlr->r_msix_tab_rid) &&
618 		    (ctlr->r_msix_pba_rid != ctlr->r_rid)) {
619 			/* Separate BAR for PBA */
620 			ctlr->r_msix_pba = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
621 			    &ctlr->r_msix_pba_rid, RF_ACTIVE);
622 			if (ctlr->r_msix_pba == NULL) {
623 				ahci_free_mem(dev);
624 				return (ENXIO);
625 			}
626 		}
627 	}
628 
629 	pci_enable_busmaster(dev);
630 	/* Reset controller */
631 	if ((error = ahci_pci_ctlr_reset(dev)) != 0) {
632 		ahci_free_mem(dev);
633 		return (error);
634 	}
635 
636 	/* Setup interrupts. */
637 
638 	/* Setup MSI register parameters */
639 	/* Process hints. */
640 	caps = ATA_INL(ctlr->r_mem, AHCI_CAP);
641 	pi = ATA_INL(ctlr->r_mem, AHCI_PI);
642 	if (ctlr->quirks & AHCI_Q_NOMSI)
643 		ctlr->msi = 0;
644 	else if ((ctlr->quirks & AHCI_Q_1MSI) ||
645 	    ((caps & (AHCI_CAP_NPMASK | AHCI_CAP_CCCS)) == 0 && pi == 1))
646 		ctlr->msi = 1;
647 	else
648 		ctlr->msi = 2;
649 	resource_int_value(device_get_name(dev),
650 	    device_get_unit(dev), "msi", &ctlr->msi);
651 	ctlr->numirqs = 1;
652 	if (msi_count == 0 && msix_count == 0)
653 		ctlr->msi = 0;
654 	if (ctlr->msi < 0)
655 		ctlr->msi = 0;
656 	else if (ctlr->msi == 1) {
657 		msi_count = min(1, msi_count);
658 		msix_count = min(1, msix_count);
659 	} else if (ctlr->msi > 1)
660 		ctlr->msi = 2;
661 
662 	/* Allocate MSI/MSI-x if needed/present. */
663 	if (ctlr->msi > 0) {
664 		error = ENXIO;
665 
666 		/* Try to allocate MSI-x first */
667 		if (msix_count > 0) {
668 			error = pci_alloc_msix(dev, &msix_count);
669 			if (error == 0)
670 				ctlr->numirqs = msix_count;
671 		}
672 
673 		/*
674 		 * Try to allocate MSI if msi_count is greater than 0
675 		 * and if MSI-x allocation failed.
676 		 */
677 		if ((error != 0) && (msi_count > 0)) {
678 			error = pci_alloc_msi(dev, &msi_count);
679 			if (error == 0)
680 				ctlr->numirqs = msi_count;
681 		}
682 
683 		/* Both MSI and MSI-x allocations failed */
684 		if (error != 0) {
685 			ctlr->msi = 0;
686 			device_printf(dev, "Failed to allocate MSI/MSI-x, "
687 			    "falling back to INTx\n");
688 		}
689 	}
690 
691 	error = ahci_attach(dev);
692 	if (error != 0) {
693 		if (ctlr->msi > 0)
694 			pci_release_msi(dev);
695 		ahci_free_mem(dev);
696 	}
697 	return error;
698 }
699 
700 static int
701 ahci_pci_detach(device_t dev)
702 {
703 
704 	ahci_detach(dev);
705 	pci_release_msi(dev);
706 	return (0);
707 }
708 
709 static int
710 ahci_pci_suspend(device_t dev)
711 {
712 	struct ahci_controller *ctlr = device_get_softc(dev);
713 
714 	bus_generic_suspend(dev);
715 	/* Disable interupts, so the state change(s) doesn't trigger */
716 	ATA_OUTL(ctlr->r_mem, AHCI_GHC,
717 	     ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE));
718 	return 0;
719 }
720 
721 static int
722 ahci_pci_resume(device_t dev)
723 {
724 	int res;
725 
726 	if ((res = ahci_pci_ctlr_reset(dev)) != 0)
727 		return (res);
728 	ahci_ctlr_setup(dev);
729 	return (bus_generic_resume(dev));
730 }
731 
732 static device_method_t ahci_methods[] = {
733 	DEVMETHOD(device_probe,     ahci_probe),
734 	DEVMETHOD(device_attach,    ahci_pci_attach),
735 	DEVMETHOD(device_detach,    ahci_pci_detach),
736 	DEVMETHOD(device_suspend,   ahci_pci_suspend),
737 	DEVMETHOD(device_resume,    ahci_pci_resume),
738 	DEVMETHOD(bus_print_child,  ahci_print_child),
739 	DEVMETHOD(bus_alloc_resource,       ahci_alloc_resource),
740 	DEVMETHOD(bus_release_resource,     ahci_release_resource),
741 	DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
742 	DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
743 	DEVMETHOD(bus_child_location, ahci_child_location),
744 	DEVMETHOD(bus_get_dma_tag,  ahci_get_dma_tag),
745 	DEVMETHOD_END
746 };
747 static driver_t ahci_driver = {
748         "ahci",
749         ahci_methods,
750         sizeof(struct ahci_controller)
751 };
752 DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, NULL, NULL);
753 /* Also matches class / subclass / progid XXX need to add when we have masking support */
754 MODULE_PNP_INFO("W32:vendor/device", pci, ahci, ahci_ids,
755     nitems(ahci_ids) - 1);
756 static device_method_t ahci_ata_methods[] = {
757 	DEVMETHOD(device_probe,     ahci_ata_probe),
758 	DEVMETHOD(device_attach,    ahci_pci_attach),
759 	DEVMETHOD(device_detach,    ahci_pci_detach),
760 	DEVMETHOD(device_suspend,   ahci_pci_suspend),
761 	DEVMETHOD(device_resume,    ahci_pci_resume),
762 	DEVMETHOD(bus_print_child,  ahci_print_child),
763 	DEVMETHOD(bus_alloc_resource,       ahci_alloc_resource),
764 	DEVMETHOD(bus_release_resource,     ahci_release_resource),
765 	DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
766 	DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
767 	DEVMETHOD(bus_child_location, ahci_child_location),
768 	DEVMETHOD_END
769 };
770 static driver_t ahci_ata_driver = {
771         "ahci",
772         ahci_ata_methods,
773         sizeof(struct ahci_controller)
774 };
775 DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, NULL, NULL);
776