xref: /openbmc/linux/drivers/ata/ahci.c (revision 25b892b5)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  ahci.c - AHCI SATA support
4  *
5  *  Maintained by:  Tejun Heo <tj@kernel.org>
6  *    		    Please ALWAYS copy linux-ide@vger.kernel.org
7  *		    on emails.
8  *
9  *  Copyright 2004-2005 Red Hat, Inc.
10  *
11  * libata documentation is available via 'make {ps|pdf}docs',
12  * as Documentation/driver-api/libata.rst
13  *
14  * AHCI hardware documentation:
15  * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
16  * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
17  */
18 
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/pci.h>
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/device.h>
27 #include <linux/dmi.h>
28 #include <linux/gfp.h>
29 #include <linux/msi.h>
30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_cmnd.h>
32 #include <linux/libata.h>
33 #include <linux/ahci-remap.h>
34 #include <linux/io-64-nonatomic-lo-hi.h>
35 #include "ahci.h"
36 
37 #define DRV_NAME	"ahci"
38 #define DRV_VERSION	"3.0"
39 
40 enum {
41 	AHCI_PCI_BAR_STA2X11	= 0,
42 	AHCI_PCI_BAR_CAVIUM	= 0,
43 	AHCI_PCI_BAR_LOONGSON	= 0,
44 	AHCI_PCI_BAR_ENMOTUS	= 2,
45 	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
46 	AHCI_PCI_BAR_STANDARD	= 5,
47 };
48 
49 enum board_ids {
50 	/* board IDs by feature in alphabetical order */
51 	board_ahci,
52 	board_ahci_ign_iferr,
53 	board_ahci_mobile,
54 	board_ahci_nomsi,
55 	board_ahci_noncq,
56 	board_ahci_nosntf,
57 	board_ahci_yes_fbs,
58 
59 	/* board IDs for specific chipsets in alphabetical order */
60 	board_ahci_al,
61 	board_ahci_avn,
62 	board_ahci_mcp65,
63 	board_ahci_mcp77,
64 	board_ahci_mcp89,
65 	board_ahci_mv,
66 	board_ahci_sb600,
67 	board_ahci_sb700,	/* for SB700 and SB800 */
68 	board_ahci_vt8251,
69 
70 	/*
71 	 * board IDs for Intel chipsets that support more than 6 ports
72 	 * *and* end up needing the PCS quirk.
73 	 */
74 	board_ahci_pcs7,
75 
76 	/* aliases */
77 	board_ahci_mcp_linux	= board_ahci_mcp65,
78 	board_ahci_mcp67	= board_ahci_mcp65,
79 	board_ahci_mcp73	= board_ahci_mcp65,
80 	board_ahci_mcp79	= board_ahci_mcp77,
81 };
82 
83 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
84 static void ahci_remove_one(struct pci_dev *dev);
85 static void ahci_shutdown_one(struct pci_dev *dev);
86 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
87 				 unsigned long deadline);
88 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
89 			      unsigned long deadline);
90 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
91 static bool is_mcp89_apple(struct pci_dev *pdev);
92 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
93 				unsigned long deadline);
94 #ifdef CONFIG_PM
95 static int ahci_pci_device_runtime_suspend(struct device *dev);
96 static int ahci_pci_device_runtime_resume(struct device *dev);
97 #ifdef CONFIG_PM_SLEEP
98 static int ahci_pci_device_suspend(struct device *dev);
99 static int ahci_pci_device_resume(struct device *dev);
100 #endif
101 #endif /* CONFIG_PM */
102 
103 static struct scsi_host_template ahci_sht = {
104 	AHCI_SHT("ahci"),
105 };
106 
107 static struct ata_port_operations ahci_vt8251_ops = {
108 	.inherits		= &ahci_ops,
109 	.hardreset		= ahci_vt8251_hardreset,
110 };
111 
112 static struct ata_port_operations ahci_p5wdh_ops = {
113 	.inherits		= &ahci_ops,
114 	.hardreset		= ahci_p5wdh_hardreset,
115 };
116 
117 static struct ata_port_operations ahci_avn_ops = {
118 	.inherits		= &ahci_ops,
119 	.hardreset		= ahci_avn_hardreset,
120 };
121 
122 static const struct ata_port_info ahci_port_info[] = {
123 	/* by features */
124 	[board_ahci] = {
125 		.flags		= AHCI_FLAG_COMMON,
126 		.pio_mask	= ATA_PIO4,
127 		.udma_mask	= ATA_UDMA6,
128 		.port_ops	= &ahci_ops,
129 	},
130 	[board_ahci_ign_iferr] = {
131 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
132 		.flags		= AHCI_FLAG_COMMON,
133 		.pio_mask	= ATA_PIO4,
134 		.udma_mask	= ATA_UDMA6,
135 		.port_ops	= &ahci_ops,
136 	},
137 	[board_ahci_mobile] = {
138 		AHCI_HFLAGS	(AHCI_HFLAG_IS_MOBILE),
139 		.flags		= AHCI_FLAG_COMMON,
140 		.pio_mask	= ATA_PIO4,
141 		.udma_mask	= ATA_UDMA6,
142 		.port_ops	= &ahci_ops,
143 	},
144 	[board_ahci_nomsi] = {
145 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
146 		.flags		= AHCI_FLAG_COMMON,
147 		.pio_mask	= ATA_PIO4,
148 		.udma_mask	= ATA_UDMA6,
149 		.port_ops	= &ahci_ops,
150 	},
151 	[board_ahci_noncq] = {
152 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
153 		.flags		= AHCI_FLAG_COMMON,
154 		.pio_mask	= ATA_PIO4,
155 		.udma_mask	= ATA_UDMA6,
156 		.port_ops	= &ahci_ops,
157 	},
158 	[board_ahci_nosntf] = {
159 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
160 		.flags		= AHCI_FLAG_COMMON,
161 		.pio_mask	= ATA_PIO4,
162 		.udma_mask	= ATA_UDMA6,
163 		.port_ops	= &ahci_ops,
164 	},
165 	[board_ahci_yes_fbs] = {
166 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
167 		.flags		= AHCI_FLAG_COMMON,
168 		.pio_mask	= ATA_PIO4,
169 		.udma_mask	= ATA_UDMA6,
170 		.port_ops	= &ahci_ops,
171 	},
172 	/* by chipsets */
173 	[board_ahci_al] = {
174 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
175 		.flags		= AHCI_FLAG_COMMON,
176 		.pio_mask	= ATA_PIO4,
177 		.udma_mask	= ATA_UDMA6,
178 		.port_ops	= &ahci_ops,
179 	},
180 	[board_ahci_avn] = {
181 		.flags		= AHCI_FLAG_COMMON,
182 		.pio_mask	= ATA_PIO4,
183 		.udma_mask	= ATA_UDMA6,
184 		.port_ops	= &ahci_avn_ops,
185 	},
186 	[board_ahci_mcp65] = {
187 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
188 				 AHCI_HFLAG_YES_NCQ),
189 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
190 		.pio_mask	= ATA_PIO4,
191 		.udma_mask	= ATA_UDMA6,
192 		.port_ops	= &ahci_ops,
193 	},
194 	[board_ahci_mcp77] = {
195 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
196 		.flags		= AHCI_FLAG_COMMON,
197 		.pio_mask	= ATA_PIO4,
198 		.udma_mask	= ATA_UDMA6,
199 		.port_ops	= &ahci_ops,
200 	},
201 	[board_ahci_mcp89] = {
202 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
203 		.flags		= AHCI_FLAG_COMMON,
204 		.pio_mask	= ATA_PIO4,
205 		.udma_mask	= ATA_UDMA6,
206 		.port_ops	= &ahci_ops,
207 	},
208 	[board_ahci_mv] = {
209 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
210 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
211 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
212 		.pio_mask	= ATA_PIO4,
213 		.udma_mask	= ATA_UDMA6,
214 		.port_ops	= &ahci_ops,
215 	},
216 	[board_ahci_sb600] = {
217 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
218 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
219 				 AHCI_HFLAG_32BIT_ONLY),
220 		.flags		= AHCI_FLAG_COMMON,
221 		.pio_mask	= ATA_PIO4,
222 		.udma_mask	= ATA_UDMA6,
223 		.port_ops	= &ahci_pmp_retry_srst_ops,
224 	},
225 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
226 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
227 		.flags		= AHCI_FLAG_COMMON,
228 		.pio_mask	= ATA_PIO4,
229 		.udma_mask	= ATA_UDMA6,
230 		.port_ops	= &ahci_pmp_retry_srst_ops,
231 	},
232 	[board_ahci_vt8251] = {
233 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
234 		.flags		= AHCI_FLAG_COMMON,
235 		.pio_mask	= ATA_PIO4,
236 		.udma_mask	= ATA_UDMA6,
237 		.port_ops	= &ahci_vt8251_ops,
238 	},
239 	[board_ahci_pcs7] = {
240 		.flags		= AHCI_FLAG_COMMON,
241 		.pio_mask	= ATA_PIO4,
242 		.udma_mask	= ATA_UDMA6,
243 		.port_ops	= &ahci_ops,
244 	},
245 };
246 
247 static const struct pci_device_id ahci_pci_tbl[] = {
248 	/* Intel */
249 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
250 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
251 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
252 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
253 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
254 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
255 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
256 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
257 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
258 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
259 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
260 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
261 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
262 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
263 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
264 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
265 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
266 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
267 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
268 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
269 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
270 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_mobile }, /* ICH9M */
271 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_mobile }, /* ICH9M */
272 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_mobile }, /* ICH9M */
273 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_mobile }, /* ICH9M */
274 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_mobile }, /* ICH9M */
275 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
276 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_mobile }, /* ICH9M */
277 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
278 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
279 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
280 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
281 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
282 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
283 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
284 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
285 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
286 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_mobile }, /* PCH M AHCI */
287 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
288 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_mobile }, /* PCH M RAID */
289 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
290 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
291 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
292 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
293 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
294 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
295 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
296 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
297 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
302 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_mobile }, /* CPT M AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
313 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_mobile }, /* CPT M RAID */
314 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
315 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
316 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
318 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
319 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
320 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
321 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
322 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_mobile }, /* Panther M AHCI */
323 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
324 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
325 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
326 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_mobile }, /* Panther M RAID */
327 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
328 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
329 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_mobile }, /* Lynx M AHCI */
330 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
331 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_mobile }, /* Lynx M RAID */
332 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
333 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_mobile }, /* Lynx M RAID */
334 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
335 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_mobile }, /* Lynx M RAID */
336 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_mobile }, /* Lynx LP AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_mobile }, /* Lynx LP AHCI */
338 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_mobile }, /* Lynx LP RAID */
339 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_mobile }, /* Lynx LP RAID */
340 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_mobile }, /* Lynx LP RAID */
341 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_mobile }, /* Lynx LP RAID */
342 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_mobile }, /* Lynx LP RAID */
343 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_mobile }, /* Lynx LP RAID */
344 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_mobile }, /* Cannon Lake PCH-LP AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
346 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
347 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
348 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
349 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
350 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
351 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
352 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
353 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
354 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
355 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
356 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
357 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
358 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
359 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
360 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
361 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
362 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
363 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
364 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
365 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
366 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
367 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
368 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
369 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
370 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
371 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
372 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
373 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
374 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
375 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
376 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_mobile }, /* Wildcat LP AHCI */
377 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_mobile }, /* Wildcat LP RAID */
378 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_mobile }, /* Wildcat LP RAID */
379 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_mobile }, /* Wildcat LP RAID */
380 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
381 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_mobile }, /* 9 Series M AHCI */
382 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
383 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_mobile }, /* 9 Series M RAID */
384 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
385 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_mobile }, /* 9 Series M RAID */
386 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
387 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_mobile }, /* 9 Series M RAID */
388 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_mobile }, /* Sunrise LP AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_mobile }, /* Sunrise LP RAID */
390 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_mobile }, /* Sunrise LP RAID */
391 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
392 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_mobile }, /* Sunrise M AHCI */
393 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
394 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
395 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
396 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
397 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
398 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
399 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
400 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
401 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
402 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
403 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
404 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
405 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
406 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
407 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
408 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
409 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
410 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
411 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
412 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_mobile }, /* Bay Trail AHCI */
413 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_mobile }, /* Bay Trail AHCI */
414 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_mobile }, /* Cherry Tr. AHCI */
415 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_mobile }, /* ApolloLake AHCI */
416 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_mobile }, /* Ice Lake LP AHCI */
417 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_mobile }, /* Comet Lake PCH-U AHCI */
418 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_mobile }, /* Comet Lake PCH RAID */
419 
420 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
421 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
422 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
423 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
424 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
425 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
426 	/* May need to update quirk_jmicron_async_suspend() for additions */
427 
428 	/* ATI */
429 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
430 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
431 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
432 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
433 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
434 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
435 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
436 
437 	/* Amazon's Annapurna Labs support */
438 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
439 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
440 		.class_mask = 0xffffff,
441 		board_ahci_al },
442 	/* AMD */
443 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
444 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
445 	/* AMD is using RAID class only for ahci controllers */
446 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
447 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
448 
449 	/* Dell S140/S150 */
450 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
451 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
452 
453 	/* VIA */
454 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
455 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
456 
457 	/* NVIDIA */
458 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
459 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
460 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
461 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
462 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
463 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
464 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
465 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
466 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
467 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
468 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
469 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
470 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
471 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
472 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
473 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
474 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
475 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
476 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
477 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
478 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
479 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
480 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
481 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
482 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
483 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
484 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
485 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
486 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
487 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
488 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
489 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
490 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
491 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
492 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
493 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
494 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
495 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
496 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
497 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
498 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
499 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
500 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
501 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
502 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
503 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
504 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
505 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
506 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
507 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
508 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
509 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
510 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
511 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
512 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
513 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
514 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
515 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
516 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
517 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
518 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
519 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
520 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
542 
543 	/* SiS */
544 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
545 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
546 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
547 
548 	/* ST Microelectronics */
549 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
550 
551 	/* Marvell */
552 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
553 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
554 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
555 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
556 	  .class_mask = 0xffffff,
557 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
558 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
559 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
560 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
561 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
562 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
563 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
564 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
565 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
566 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
567 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
568 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
569 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
570 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
571 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
572 	  .driver_data = board_ahci_yes_fbs },
573 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
574 	  .driver_data = board_ahci_yes_fbs },
575 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
576 	  .driver_data = board_ahci_yes_fbs },
577 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
578 	  .driver_data = board_ahci_yes_fbs },
579 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
580 	  .driver_data = board_ahci_yes_fbs },
581 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
582 	  .driver_data = board_ahci_yes_fbs },
583 
584 	/* Promise */
585 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
586 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
587 
588 	/* Asmedia */
589 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
590 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
591 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
592 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
593 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
594 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
595 
596 	/*
597 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
598 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
599 	 */
600 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
601 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
602 
603 	/* Enmotus */
604 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
605 
606 	/* Loongson */
607 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
608 
609 	/* Generic, PCI class code for AHCI */
610 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
611 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
612 
613 	{ }	/* terminate list */
614 };
615 
616 static const struct dev_pm_ops ahci_pci_pm_ops = {
617 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
618 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
619 			   ahci_pci_device_runtime_resume, NULL)
620 };
621 
622 static struct pci_driver ahci_pci_driver = {
623 	.name			= DRV_NAME,
624 	.id_table		= ahci_pci_tbl,
625 	.probe			= ahci_init_one,
626 	.remove			= ahci_remove_one,
627 	.shutdown		= ahci_shutdown_one,
628 	.driver = {
629 		.pm		= &ahci_pci_pm_ops,
630 	},
631 };
632 
633 #if IS_ENABLED(CONFIG_PATA_MARVELL)
634 static int marvell_enable;
635 #else
636 static int marvell_enable = 1;
637 #endif
638 module_param(marvell_enable, int, 0644);
639 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
640 
641 static int mobile_lpm_policy = -1;
642 module_param(mobile_lpm_policy, int, 0644);
643 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
644 
645 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
646 					 struct ahci_host_priv *hpriv)
647 {
648 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
649 		dev_info(&pdev->dev, "JMB361 has only one port\n");
650 		hpriv->force_port_map = 1;
651 	}
652 
653 	/*
654 	 * Temporary Marvell 6145 hack: PATA port presence
655 	 * is asserted through the standard AHCI port
656 	 * presence register, as bit 4 (counting from 0)
657 	 */
658 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
659 		if (pdev->device == 0x6121)
660 			hpriv->mask_port_map = 0x3;
661 		else
662 			hpriv->mask_port_map = 0xf;
663 		dev_info(&pdev->dev,
664 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
665 	}
666 
667 	ahci_save_initial_config(&pdev->dev, hpriv);
668 }
669 
670 static void ahci_pci_init_controller(struct ata_host *host)
671 {
672 	struct ahci_host_priv *hpriv = host->private_data;
673 	struct pci_dev *pdev = to_pci_dev(host->dev);
674 	void __iomem *port_mmio;
675 	u32 tmp;
676 	int mv;
677 
678 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
679 		if (pdev->device == 0x6121)
680 			mv = 2;
681 		else
682 			mv = 4;
683 		port_mmio = __ahci_port_base(host, mv);
684 
685 		writel(0, port_mmio + PORT_IRQ_MASK);
686 
687 		/* clear port IRQ */
688 		tmp = readl(port_mmio + PORT_IRQ_STAT);
689 		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
690 		if (tmp)
691 			writel(tmp, port_mmio + PORT_IRQ_STAT);
692 	}
693 
694 	ahci_init_controller(host);
695 }
696 
697 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
698 				 unsigned long deadline)
699 {
700 	struct ata_port *ap = link->ap;
701 	struct ahci_host_priv *hpriv = ap->host->private_data;
702 	bool online;
703 	int rc;
704 
705 	DPRINTK("ENTER\n");
706 
707 	hpriv->stop_engine(ap);
708 
709 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
710 				 deadline, &online, NULL);
711 
712 	hpriv->start_engine(ap);
713 
714 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
715 
716 	/* vt8251 doesn't clear BSY on signature FIS reception,
717 	 * request follow-up softreset.
718 	 */
719 	return online ? -EAGAIN : rc;
720 }
721 
722 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
723 				unsigned long deadline)
724 {
725 	struct ata_port *ap = link->ap;
726 	struct ahci_port_priv *pp = ap->private_data;
727 	struct ahci_host_priv *hpriv = ap->host->private_data;
728 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
729 	struct ata_taskfile tf;
730 	bool online;
731 	int rc;
732 
733 	hpriv->stop_engine(ap);
734 
735 	/* clear D2H reception area to properly wait for D2H FIS */
736 	ata_tf_init(link->device, &tf);
737 	tf.command = ATA_BUSY;
738 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
739 
740 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
741 				 deadline, &online, NULL);
742 
743 	hpriv->start_engine(ap);
744 
745 	/* The pseudo configuration device on SIMG4726 attached to
746 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
747 	 * hardreset if no device is attached to the first downstream
748 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
749 	 * work around this, wait for !BSY only briefly.  If BSY isn't
750 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
751 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
752 	 *
753 	 * Wait for two seconds.  Devices attached to downstream port
754 	 * which can't process the following IDENTIFY after this will
755 	 * have to be reset again.  For most cases, this should
756 	 * suffice while making probing snappish enough.
757 	 */
758 	if (online) {
759 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
760 					  ahci_check_ready);
761 		if (rc)
762 			ahci_kick_engine(ap);
763 	}
764 	return rc;
765 }
766 
767 /*
768  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
769  *
770  * It has been observed with some SSDs that the timing of events in the
771  * link synchronization phase can leave the port in a state that can not
772  * be recovered by a SATA-hard-reset alone.  The failing signature is
773  * SStatus.DET stuck at 1 ("Device presence detected but Phy
774  * communication not established").  It was found that unloading and
775  * reloading the driver when this problem occurs allows the drive
776  * connection to be recovered (DET advanced to 0x3).  The critical
777  * component of reloading the driver is that the port state machines are
778  * reset by bouncing "port enable" in the AHCI PCS configuration
779  * register.  So, reproduce that effect by bouncing a port whenever we
780  * see DET==1 after a reset.
781  */
782 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
783 			      unsigned long deadline)
784 {
785 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
786 	struct ata_port *ap = link->ap;
787 	struct ahci_port_priv *pp = ap->private_data;
788 	struct ahci_host_priv *hpriv = ap->host->private_data;
789 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
790 	unsigned long tmo = deadline - jiffies;
791 	struct ata_taskfile tf;
792 	bool online;
793 	int rc, i;
794 
795 	DPRINTK("ENTER\n");
796 
797 	hpriv->stop_engine(ap);
798 
799 	for (i = 0; i < 2; i++) {
800 		u16 val;
801 		u32 sstatus;
802 		int port = ap->port_no;
803 		struct ata_host *host = ap->host;
804 		struct pci_dev *pdev = to_pci_dev(host->dev);
805 
806 		/* clear D2H reception area to properly wait for D2H FIS */
807 		ata_tf_init(link->device, &tf);
808 		tf.command = ATA_BUSY;
809 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
810 
811 		rc = sata_link_hardreset(link, timing, deadline, &online,
812 				ahci_check_ready);
813 
814 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
815 				(sstatus & 0xf) != 1)
816 			break;
817 
818 		ata_link_info(link,  "avn bounce port%d\n", port);
819 
820 		pci_read_config_word(pdev, 0x92, &val);
821 		val &= ~(1 << port);
822 		pci_write_config_word(pdev, 0x92, val);
823 		ata_msleep(ap, 1000);
824 		val |= 1 << port;
825 		pci_write_config_word(pdev, 0x92, val);
826 		deadline += tmo;
827 	}
828 
829 	hpriv->start_engine(ap);
830 
831 	if (online)
832 		*class = ahci_dev_classify(ap);
833 
834 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
835 	return rc;
836 }
837 
838 
839 #ifdef CONFIG_PM
840 static void ahci_pci_disable_interrupts(struct ata_host *host)
841 {
842 	struct ahci_host_priv *hpriv = host->private_data;
843 	void __iomem *mmio = hpriv->mmio;
844 	u32 ctl;
845 
846 	/* AHCI spec rev1.1 section 8.3.3:
847 	 * Software must disable interrupts prior to requesting a
848 	 * transition of the HBA to D3 state.
849 	 */
850 	ctl = readl(mmio + HOST_CTL);
851 	ctl &= ~HOST_IRQ_EN;
852 	writel(ctl, mmio + HOST_CTL);
853 	readl(mmio + HOST_CTL); /* flush */
854 }
855 
856 static int ahci_pci_device_runtime_suspend(struct device *dev)
857 {
858 	struct pci_dev *pdev = to_pci_dev(dev);
859 	struct ata_host *host = pci_get_drvdata(pdev);
860 
861 	ahci_pci_disable_interrupts(host);
862 	return 0;
863 }
864 
865 static int ahci_pci_device_runtime_resume(struct device *dev)
866 {
867 	struct pci_dev *pdev = to_pci_dev(dev);
868 	struct ata_host *host = pci_get_drvdata(pdev);
869 	int rc;
870 
871 	rc = ahci_reset_controller(host);
872 	if (rc)
873 		return rc;
874 	ahci_pci_init_controller(host);
875 	return 0;
876 }
877 
878 #ifdef CONFIG_PM_SLEEP
879 static int ahci_pci_device_suspend(struct device *dev)
880 {
881 	struct pci_dev *pdev = to_pci_dev(dev);
882 	struct ata_host *host = pci_get_drvdata(pdev);
883 	struct ahci_host_priv *hpriv = host->private_data;
884 
885 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
886 		dev_err(&pdev->dev,
887 			"BIOS update required for suspend/resume\n");
888 		return -EIO;
889 	}
890 
891 	ahci_pci_disable_interrupts(host);
892 	return ata_host_suspend(host, PMSG_SUSPEND);
893 }
894 
895 static int ahci_pci_device_resume(struct device *dev)
896 {
897 	struct pci_dev *pdev = to_pci_dev(dev);
898 	struct ata_host *host = pci_get_drvdata(pdev);
899 	int rc;
900 
901 	/* Apple BIOS helpfully mangles the registers on resume */
902 	if (is_mcp89_apple(pdev))
903 		ahci_mcp89_apple_enable(pdev);
904 
905 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
906 		rc = ahci_reset_controller(host);
907 		if (rc)
908 			return rc;
909 
910 		ahci_pci_init_controller(host);
911 	}
912 
913 	ata_host_resume(host);
914 
915 	return 0;
916 }
917 #endif
918 
919 #endif /* CONFIG_PM */
920 
921 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
922 {
923 	const int dma_bits = using_dac ? 64 : 32;
924 	int rc;
925 
926 	/*
927 	 * If the device fixup already set the dma_mask to some non-standard
928 	 * value, don't extend it here. This happens on STA2X11, for example.
929 	 *
930 	 * XXX: manipulating the DMA mask from platform code is completely
931 	 * bogus, platform code should use dev->bus_dma_limit instead..
932 	 */
933 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
934 		return 0;
935 
936 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
937 	if (rc)
938 		dev_err(&pdev->dev, "DMA enable failed\n");
939 	return rc;
940 }
941 
942 static void ahci_pci_print_info(struct ata_host *host)
943 {
944 	struct pci_dev *pdev = to_pci_dev(host->dev);
945 	u16 cc;
946 	const char *scc_s;
947 
948 	pci_read_config_word(pdev, 0x0a, &cc);
949 	if (cc == PCI_CLASS_STORAGE_IDE)
950 		scc_s = "IDE";
951 	else if (cc == PCI_CLASS_STORAGE_SATA)
952 		scc_s = "SATA";
953 	else if (cc == PCI_CLASS_STORAGE_RAID)
954 		scc_s = "RAID";
955 	else
956 		scc_s = "unknown";
957 
958 	ahci_print_info(host, scc_s);
959 }
960 
961 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
962  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
963  * support PMP and the 4726 either directly exports the device
964  * attached to the first downstream port or acts as a hardware storage
965  * controller and emulate a single ATA device (can be RAID 0/1 or some
966  * other configuration).
967  *
968  * When there's no device attached to the first downstream port of the
969  * 4726, "Config Disk" appears, which is a pseudo ATA device to
970  * configure the 4726.  However, ATA emulation of the device is very
971  * lame.  It doesn't send signature D2H Reg FIS after the initial
972  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
973  *
974  * The following function works around the problem by always using
975  * hardreset on the port and not depending on receiving signature FIS
976  * afterward.  If signature FIS isn't received soon, ATA class is
977  * assumed without follow-up softreset.
978  */
979 static void ahci_p5wdh_workaround(struct ata_host *host)
980 {
981 	static const struct dmi_system_id sysids[] = {
982 		{
983 			.ident = "P5W DH Deluxe",
984 			.matches = {
985 				DMI_MATCH(DMI_SYS_VENDOR,
986 					  "ASUSTEK COMPUTER INC"),
987 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
988 			},
989 		},
990 		{ }
991 	};
992 	struct pci_dev *pdev = to_pci_dev(host->dev);
993 
994 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
995 	    dmi_check_system(sysids)) {
996 		struct ata_port *ap = host->ports[1];
997 
998 		dev_info(&pdev->dev,
999 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1000 
1001 		ap->ops = &ahci_p5wdh_ops;
1002 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1003 	}
1004 }
1005 
1006 /*
1007  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1008  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1009  */
1010 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1011 {
1012 	u32 val;
1013 
1014 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1015 
1016 	pci_read_config_dword(pdev, 0xf8, &val);
1017 	val |= 1 << 0x1b;
1018 	/* the following changes the device ID, but appears not to affect function */
1019 	/* val = (val & ~0xf0000000) | 0x80000000; */
1020 	pci_write_config_dword(pdev, 0xf8, val);
1021 
1022 	pci_read_config_dword(pdev, 0x54c, &val);
1023 	val |= 1 << 0xc;
1024 	pci_write_config_dword(pdev, 0x54c, val);
1025 
1026 	pci_read_config_dword(pdev, 0x4a4, &val);
1027 	val &= 0xff;
1028 	val |= 0x01060100;
1029 	pci_write_config_dword(pdev, 0x4a4, val);
1030 
1031 	pci_read_config_dword(pdev, 0x54c, &val);
1032 	val &= ~(1 << 0xc);
1033 	pci_write_config_dword(pdev, 0x54c, val);
1034 
1035 	pci_read_config_dword(pdev, 0xf8, &val);
1036 	val &= ~(1 << 0x1b);
1037 	pci_write_config_dword(pdev, 0xf8, val);
1038 }
1039 
1040 static bool is_mcp89_apple(struct pci_dev *pdev)
1041 {
1042 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1043 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1044 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1045 		pdev->subsystem_device == 0xcb89;
1046 }
1047 
1048 /* only some SB600 ahci controllers can do 64bit DMA */
1049 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1050 {
1051 	static const struct dmi_system_id sysids[] = {
1052 		/*
1053 		 * The oldest version known to be broken is 0901 and
1054 		 * working is 1501 which was released on 2007-10-26.
1055 		 * Enable 64bit DMA on 1501 and anything newer.
1056 		 *
1057 		 * Please read bko#9412 for more info.
1058 		 */
1059 		{
1060 			.ident = "ASUS M2A-VM",
1061 			.matches = {
1062 				DMI_MATCH(DMI_BOARD_VENDOR,
1063 					  "ASUSTeK Computer INC."),
1064 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1065 			},
1066 			.driver_data = "20071026",	/* yyyymmdd */
1067 		},
1068 		/*
1069 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1070 		 * support 64bit DMA.
1071 		 *
1072 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1073 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1074 		 * This spelling mistake was fixed in BIOS version 1.5, so
1075 		 * 1.5 and later have the Manufacturer as
1076 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1077 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1078 		 *
1079 		 * BIOS versions earlier than 1.9 had a Board Product Name
1080 		 * DMI field of "MS-7376". This was changed to be
1081 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1082 		 * match on DMI_BOARD_NAME of "MS-7376".
1083 		 */
1084 		{
1085 			.ident = "MSI K9A2 Platinum",
1086 			.matches = {
1087 				DMI_MATCH(DMI_BOARD_VENDOR,
1088 					  "MICRO-STAR INTER"),
1089 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1090 			},
1091 		},
1092 		/*
1093 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1094 		 * 64bit DMA.
1095 		 *
1096 		 * This board also had the typo mentioned above in the
1097 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1098 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1099 		 */
1100 		{
1101 			.ident = "MSI K9AGM2",
1102 			.matches = {
1103 				DMI_MATCH(DMI_BOARD_VENDOR,
1104 					  "MICRO-STAR INTER"),
1105 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1106 			},
1107 		},
1108 		/*
1109 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1110 		 * (all release versions from 0301 to 1206 were tested)
1111 		 */
1112 		{
1113 			.ident = "ASUS M3A",
1114 			.matches = {
1115 				DMI_MATCH(DMI_BOARD_VENDOR,
1116 					  "ASUSTeK Computer INC."),
1117 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1118 			},
1119 		},
1120 		{ }
1121 	};
1122 	const struct dmi_system_id *match;
1123 	int year, month, date;
1124 	char buf[9];
1125 
1126 	match = dmi_first_match(sysids);
1127 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1128 	    !match)
1129 		return false;
1130 
1131 	if (!match->driver_data)
1132 		goto enable_64bit;
1133 
1134 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1135 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1136 
1137 	if (strcmp(buf, match->driver_data) >= 0)
1138 		goto enable_64bit;
1139 	else {
1140 		dev_warn(&pdev->dev,
1141 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1142 			 match->ident);
1143 		return false;
1144 	}
1145 
1146 enable_64bit:
1147 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1148 	return true;
1149 }
1150 
1151 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1152 {
1153 	static const struct dmi_system_id broken_systems[] = {
1154 		{
1155 			.ident = "HP Compaq nx6310",
1156 			.matches = {
1157 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1158 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1159 			},
1160 			/* PCI slot number of the controller */
1161 			.driver_data = (void *)0x1FUL,
1162 		},
1163 		{
1164 			.ident = "HP Compaq 6720s",
1165 			.matches = {
1166 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1167 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1168 			},
1169 			/* PCI slot number of the controller */
1170 			.driver_data = (void *)0x1FUL,
1171 		},
1172 
1173 		{ }	/* terminate list */
1174 	};
1175 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1176 
1177 	if (dmi) {
1178 		unsigned long slot = (unsigned long)dmi->driver_data;
1179 		/* apply the quirk only to on-board controllers */
1180 		return slot == PCI_SLOT(pdev->devfn);
1181 	}
1182 
1183 	return false;
1184 }
1185 
1186 static bool ahci_broken_suspend(struct pci_dev *pdev)
1187 {
1188 	static const struct dmi_system_id sysids[] = {
1189 		/*
1190 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1191 		 * to the harddisk doesn't become online after
1192 		 * resuming from STR.  Warn and fail suspend.
1193 		 *
1194 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1195 		 *
1196 		 * Use dates instead of versions to match as HP is
1197 		 * apparently recycling both product and version
1198 		 * strings.
1199 		 *
1200 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1201 		 */
1202 		{
1203 			.ident = "dv4",
1204 			.matches = {
1205 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1206 				DMI_MATCH(DMI_PRODUCT_NAME,
1207 					  "HP Pavilion dv4 Notebook PC"),
1208 			},
1209 			.driver_data = "20090105",	/* F.30 */
1210 		},
1211 		{
1212 			.ident = "dv5",
1213 			.matches = {
1214 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1215 				DMI_MATCH(DMI_PRODUCT_NAME,
1216 					  "HP Pavilion dv5 Notebook PC"),
1217 			},
1218 			.driver_data = "20090506",	/* F.16 */
1219 		},
1220 		{
1221 			.ident = "dv6",
1222 			.matches = {
1223 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1224 				DMI_MATCH(DMI_PRODUCT_NAME,
1225 					  "HP Pavilion dv6 Notebook PC"),
1226 			},
1227 			.driver_data = "20090423",	/* F.21 */
1228 		},
1229 		{
1230 			.ident = "HDX18",
1231 			.matches = {
1232 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1233 				DMI_MATCH(DMI_PRODUCT_NAME,
1234 					  "HP HDX18 Notebook PC"),
1235 			},
1236 			.driver_data = "20090430",	/* F.23 */
1237 		},
1238 		/*
1239 		 * Acer eMachines G725 has the same problem.  BIOS
1240 		 * V1.03 is known to be broken.  V3.04 is known to
1241 		 * work.  Between, there are V1.06, V2.06 and V3.03
1242 		 * that we don't have much idea about.  For now,
1243 		 * blacklist anything older than V3.04.
1244 		 *
1245 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1246 		 */
1247 		{
1248 			.ident = "G725",
1249 			.matches = {
1250 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1251 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1252 			},
1253 			.driver_data = "20091216",	/* V3.04 */
1254 		},
1255 		{ }	/* terminate list */
1256 	};
1257 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1258 	int year, month, date;
1259 	char buf[9];
1260 
1261 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1262 		return false;
1263 
1264 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1265 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1266 
1267 	return strcmp(buf, dmi->driver_data) < 0;
1268 }
1269 
1270 static bool ahci_broken_lpm(struct pci_dev *pdev)
1271 {
1272 	static const struct dmi_system_id sysids[] = {
1273 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1274 		{
1275 			.matches = {
1276 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1277 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1278 			},
1279 			.driver_data = "20180406", /* 1.31 */
1280 		},
1281 		{
1282 			.matches = {
1283 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1284 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1285 			},
1286 			.driver_data = "20180420", /* 1.28 */
1287 		},
1288 		{
1289 			.matches = {
1290 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1291 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1292 			},
1293 			.driver_data = "20180315", /* 1.33 */
1294 		},
1295 		{
1296 			.matches = {
1297 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1298 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1299 			},
1300 			/*
1301 			 * Note date based on release notes, 2.35 has been
1302 			 * reported to be good, but I've been unable to get
1303 			 * a hold of the reporter to get the DMI BIOS date.
1304 			 * TODO: fix this.
1305 			 */
1306 			.driver_data = "20180310", /* 2.35 */
1307 		},
1308 		{ }	/* terminate list */
1309 	};
1310 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1311 	int year, month, date;
1312 	char buf[9];
1313 
1314 	if (!dmi)
1315 		return false;
1316 
1317 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1318 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1319 
1320 	return strcmp(buf, dmi->driver_data) < 0;
1321 }
1322 
1323 static bool ahci_broken_online(struct pci_dev *pdev)
1324 {
1325 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1326 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1327 	static const struct dmi_system_id sysids[] = {
1328 		/*
1329 		 * There are several gigabyte boards which use
1330 		 * SIMG5723s configured as hardware RAID.  Certain
1331 		 * 5723 firmware revisions shipped there keep the link
1332 		 * online but fail to answer properly to SRST or
1333 		 * IDENTIFY when no device is attached downstream
1334 		 * causing libata to retry quite a few times leading
1335 		 * to excessive detection delay.
1336 		 *
1337 		 * As these firmwares respond to the second reset try
1338 		 * with invalid device signature, considering unknown
1339 		 * sig as offline works around the problem acceptably.
1340 		 */
1341 		{
1342 			.ident = "EP45-DQ6",
1343 			.matches = {
1344 				DMI_MATCH(DMI_BOARD_VENDOR,
1345 					  "Gigabyte Technology Co., Ltd."),
1346 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1347 			},
1348 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1349 		},
1350 		{
1351 			.ident = "EP45-DS5",
1352 			.matches = {
1353 				DMI_MATCH(DMI_BOARD_VENDOR,
1354 					  "Gigabyte Technology Co., Ltd."),
1355 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1356 			},
1357 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1358 		},
1359 		{ }	/* terminate list */
1360 	};
1361 #undef ENCODE_BUSDEVFN
1362 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1363 	unsigned int val;
1364 
1365 	if (!dmi)
1366 		return false;
1367 
1368 	val = (unsigned long)dmi->driver_data;
1369 
1370 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1371 }
1372 
1373 static bool ahci_broken_devslp(struct pci_dev *pdev)
1374 {
1375 	/* device with broken DEVSLP but still showing SDS capability */
1376 	static const struct pci_device_id ids[] = {
1377 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1378 		{}
1379 	};
1380 
1381 	return pci_match_id(ids, pdev);
1382 }
1383 
1384 #ifdef CONFIG_ATA_ACPI
1385 static void ahci_gtf_filter_workaround(struct ata_host *host)
1386 {
1387 	static const struct dmi_system_id sysids[] = {
1388 		/*
1389 		 * Aspire 3810T issues a bunch of SATA enable commands
1390 		 * via _GTF including an invalid one and one which is
1391 		 * rejected by the device.  Among the successful ones
1392 		 * is FPDMA non-zero offset enable which when enabled
1393 		 * only on the drive side leads to NCQ command
1394 		 * failures.  Filter it out.
1395 		 */
1396 		{
1397 			.ident = "Aspire 3810T",
1398 			.matches = {
1399 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1400 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1401 			},
1402 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1403 		},
1404 		{ }
1405 	};
1406 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1407 	unsigned int filter;
1408 	int i;
1409 
1410 	if (!dmi)
1411 		return;
1412 
1413 	filter = (unsigned long)dmi->driver_data;
1414 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1415 		 filter, dmi->ident);
1416 
1417 	for (i = 0; i < host->n_ports; i++) {
1418 		struct ata_port *ap = host->ports[i];
1419 		struct ata_link *link;
1420 		struct ata_device *dev;
1421 
1422 		ata_for_each_link(link, ap, EDGE)
1423 			ata_for_each_dev(dev, link, ALL)
1424 				dev->gtf_filter |= filter;
1425 	}
1426 }
1427 #else
1428 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1429 {}
1430 #endif
1431 
1432 /*
1433  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1434  * as DUMMY, or detected but eventually get a "link down" and never get up
1435  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1436  * port_map may hold a value of 0x00.
1437  *
1438  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1439  * and can significantly reduce the occurrence of the problem.
1440  *
1441  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1442  */
1443 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1444 				    struct pci_dev *pdev)
1445 {
1446 	static const struct dmi_system_id sysids[] = {
1447 		{
1448 			.ident = "Acer Switch Alpha 12",
1449 			.matches = {
1450 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1451 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1452 			},
1453 		},
1454 		{ }
1455 	};
1456 
1457 	if (dmi_check_system(sysids)) {
1458 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1459 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1460 			hpriv->port_map = 0x7;
1461 			hpriv->cap = 0xC734FF02;
1462 		}
1463 	}
1464 }
1465 
1466 #ifdef CONFIG_ARM64
1467 /*
1468  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1469  * Workaround is to make sure all pending IRQs are served before leaving
1470  * handler.
1471  */
1472 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1473 {
1474 	struct ata_host *host = dev_instance;
1475 	struct ahci_host_priv *hpriv;
1476 	unsigned int rc = 0;
1477 	void __iomem *mmio;
1478 	u32 irq_stat, irq_masked;
1479 	unsigned int handled = 1;
1480 
1481 	VPRINTK("ENTER\n");
1482 	hpriv = host->private_data;
1483 	mmio = hpriv->mmio;
1484 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1485 	if (!irq_stat)
1486 		return IRQ_NONE;
1487 
1488 	do {
1489 		irq_masked = irq_stat & hpriv->port_map;
1490 		spin_lock(&host->lock);
1491 		rc = ahci_handle_port_intr(host, irq_masked);
1492 		if (!rc)
1493 			handled = 0;
1494 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1495 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1496 		spin_unlock(&host->lock);
1497 	} while (irq_stat);
1498 	VPRINTK("EXIT\n");
1499 
1500 	return IRQ_RETVAL(handled);
1501 }
1502 #endif
1503 
1504 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1505 		struct ahci_host_priv *hpriv)
1506 {
1507 	int i;
1508 	u32 cap;
1509 
1510 	/*
1511 	 * Check if this device might have remapped nvme devices.
1512 	 */
1513 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1514 	    pci_resource_len(pdev, bar) < SZ_512K ||
1515 	    bar != AHCI_PCI_BAR_STANDARD ||
1516 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1517 		return;
1518 
1519 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1520 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1521 		if ((cap & (1 << i)) == 0)
1522 			continue;
1523 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1524 				!= PCI_CLASS_STORAGE_EXPRESS)
1525 			continue;
1526 
1527 		/* We've found a remapped device */
1528 		hpriv->remapped_nvme++;
1529 	}
1530 
1531 	if (!hpriv->remapped_nvme)
1532 		return;
1533 
1534 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1535 		 hpriv->remapped_nvme);
1536 	dev_warn(&pdev->dev,
1537 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1538 
1539 	/*
1540 	 * Don't rely on the msi-x capability in the remap case,
1541 	 * share the legacy interrupt across ahci and remapped devices.
1542 	 */
1543 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1544 }
1545 
1546 static int ahci_get_irq_vector(struct ata_host *host, int port)
1547 {
1548 	return pci_irq_vector(to_pci_dev(host->dev), port);
1549 }
1550 
1551 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1552 			struct ahci_host_priv *hpriv)
1553 {
1554 	int nvec;
1555 
1556 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1557 		return -ENODEV;
1558 
1559 	/*
1560 	 * If number of MSIs is less than number of ports then Sharing Last
1561 	 * Message mode could be enforced. In this case assume that advantage
1562 	 * of multipe MSIs is negated and use single MSI mode instead.
1563 	 */
1564 	if (n_ports > 1) {
1565 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1566 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1567 		if (nvec > 0) {
1568 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1569 				hpriv->get_irq_vector = ahci_get_irq_vector;
1570 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1571 				return nvec;
1572 			}
1573 
1574 			/*
1575 			 * Fallback to single MSI mode if the controller
1576 			 * enforced MRSM mode.
1577 			 */
1578 			printk(KERN_INFO
1579 				"ahci: MRSM is on, fallback to single MSI\n");
1580 			pci_free_irq_vectors(pdev);
1581 		}
1582 	}
1583 
1584 	/*
1585 	 * If the host is not capable of supporting per-port vectors, fall
1586 	 * back to single MSI before finally attempting single MSI-X.
1587 	 */
1588 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1589 	if (nvec == 1)
1590 		return nvec;
1591 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1592 }
1593 
1594 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1595 					   struct ahci_host_priv *hpriv)
1596 {
1597 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1598 
1599 
1600 	/* Ignore processing for non mobile platforms */
1601 	if (!(hpriv->flags & AHCI_HFLAG_IS_MOBILE))
1602 		return;
1603 
1604 	/* user modified policy via module param */
1605 	if (mobile_lpm_policy != -1) {
1606 		policy = mobile_lpm_policy;
1607 		goto update_policy;
1608 	}
1609 
1610 #ifdef CONFIG_ACPI
1611 	if (policy > ATA_LPM_MED_POWER &&
1612 	    (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
1613 		if (hpriv->cap & HOST_CAP_PART)
1614 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1615 		else if (hpriv->cap & HOST_CAP_SSC)
1616 			policy = ATA_LPM_MIN_POWER;
1617 	}
1618 #endif
1619 
1620 update_policy:
1621 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1622 		ap->target_lpm_policy = policy;
1623 }
1624 
1625 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1626 {
1627 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1628 	u16 tmp16;
1629 
1630 	/*
1631 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1632 	 */
1633 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1634 		return;
1635 
1636 	/* Skip applying the quirk on Denverton and beyond */
1637 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1638 		return;
1639 
1640 	/*
1641 	 * port_map is determined from PORTS_IMPL PCI register which is
1642 	 * implemented as write or write-once register.  If the register
1643 	 * isn't programmed, ahci automatically generates it from number
1644 	 * of ports, which is good enough for PCS programming. It is
1645 	 * otherwise expected that platform firmware enables the ports
1646 	 * before the OS boots.
1647 	 */
1648 	pci_read_config_word(pdev, PCS_6, &tmp16);
1649 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1650 		tmp16 |= hpriv->port_map;
1651 		pci_write_config_word(pdev, PCS_6, tmp16);
1652 	}
1653 }
1654 
1655 static ssize_t remapped_nvme_show(struct device *dev,
1656 				  struct device_attribute *attr,
1657 				  char *buf)
1658 {
1659 	struct ata_host *host = dev_get_drvdata(dev);
1660 	struct ahci_host_priv *hpriv = host->private_data;
1661 
1662 	return sprintf(buf, "%u\n", hpriv->remapped_nvme);
1663 }
1664 
1665 static DEVICE_ATTR_RO(remapped_nvme);
1666 
1667 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1668 {
1669 	unsigned int board_id = ent->driver_data;
1670 	struct ata_port_info pi = ahci_port_info[board_id];
1671 	const struct ata_port_info *ppi[] = { &pi, NULL };
1672 	struct device *dev = &pdev->dev;
1673 	struct ahci_host_priv *hpriv;
1674 	struct ata_host *host;
1675 	int n_ports, i, rc;
1676 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1677 
1678 	VPRINTK("ENTER\n");
1679 
1680 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1681 
1682 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1683 
1684 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1685 	   can drive them all so if both drivers are selected make sure
1686 	   AHCI stays out of the way */
1687 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1688 		return -ENODEV;
1689 
1690 	/* Apple BIOS on MCP89 prevents us using AHCI */
1691 	if (is_mcp89_apple(pdev))
1692 		ahci_mcp89_apple_enable(pdev);
1693 
1694 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1695 	 * At the moment, we can only use the AHCI mode. Let the users know
1696 	 * that for SAS drives they're out of luck.
1697 	 */
1698 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1699 		dev_info(&pdev->dev,
1700 			 "PDC42819 can only drive SATA devices with this driver\n");
1701 
1702 	/* Some devices use non-standard BARs */
1703 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1704 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1705 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1706 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1707 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1708 		if (pdev->device == 0xa01c)
1709 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1710 		if (pdev->device == 0xa084)
1711 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1712 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1713 		if (pdev->device == 0x7a08)
1714 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1715 	}
1716 
1717 	/* acquire resources */
1718 	rc = pcim_enable_device(pdev);
1719 	if (rc)
1720 		return rc;
1721 
1722 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1723 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1724 		u8 map;
1725 
1726 		/* ICH6s share the same PCI ID for both piix and ahci
1727 		 * modes.  Enabling ahci mode while MAP indicates
1728 		 * combined mode is a bad idea.  Yield to ata_piix.
1729 		 */
1730 		pci_read_config_byte(pdev, ICH_MAP, &map);
1731 		if (map & 0x3) {
1732 			dev_info(&pdev->dev,
1733 				 "controller is in combined mode, can't enable AHCI mode\n");
1734 			return -ENODEV;
1735 		}
1736 	}
1737 
1738 	/* AHCI controllers often implement SFF compatible interface.
1739 	 * Grab all PCI BARs just in case.
1740 	 */
1741 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1742 	if (rc == -EBUSY)
1743 		pcim_pin_device(pdev);
1744 	if (rc)
1745 		return rc;
1746 
1747 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1748 	if (!hpriv)
1749 		return -ENOMEM;
1750 	hpriv->flags |= (unsigned long)pi.private_data;
1751 
1752 	/* MCP65 revision A1 and A2 can't do MSI */
1753 	if (board_id == board_ahci_mcp65 &&
1754 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1755 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1756 
1757 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1758 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1759 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1760 
1761 	/* only some SB600s can do 64bit DMA */
1762 	if (ahci_sb600_enable_64bit(pdev))
1763 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1764 
1765 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1766 
1767 	/* detect remapped nvme devices */
1768 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1769 
1770 	sysfs_add_file_to_group(&pdev->dev.kobj,
1771 				&dev_attr_remapped_nvme.attr,
1772 				NULL);
1773 
1774 	/* must set flag prior to save config in order to take effect */
1775 	if (ahci_broken_devslp(pdev))
1776 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1777 
1778 #ifdef CONFIG_ARM64
1779 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1780 	    pdev->device == 0xa235 &&
1781 	    pdev->revision < 0x30)
1782 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1783 
1784 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1785 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1786 #endif
1787 
1788 	/* save initial config */
1789 	ahci_pci_save_initial_config(pdev, hpriv);
1790 
1791 	/*
1792 	 * If platform firmware failed to enable ports, try to enable
1793 	 * them here.
1794 	 */
1795 	ahci_intel_pcs_quirk(pdev, hpriv);
1796 
1797 	/* prepare host */
1798 	if (hpriv->cap & HOST_CAP_NCQ) {
1799 		pi.flags |= ATA_FLAG_NCQ;
1800 		/*
1801 		 * Auto-activate optimization is supposed to be
1802 		 * supported on all AHCI controllers indicating NCQ
1803 		 * capability, but it seems to be broken on some
1804 		 * chipsets including NVIDIAs.
1805 		 */
1806 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1807 			pi.flags |= ATA_FLAG_FPDMA_AA;
1808 
1809 		/*
1810 		 * All AHCI controllers should be forward-compatible
1811 		 * with the new auxiliary field. This code should be
1812 		 * conditionalized if any buggy AHCI controllers are
1813 		 * encountered.
1814 		 */
1815 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1816 	}
1817 
1818 	if (hpriv->cap & HOST_CAP_PMP)
1819 		pi.flags |= ATA_FLAG_PMP;
1820 
1821 	ahci_set_em_messages(hpriv, &pi);
1822 
1823 	if (ahci_broken_system_poweroff(pdev)) {
1824 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1825 		dev_info(&pdev->dev,
1826 			"quirky BIOS, skipping spindown on poweroff\n");
1827 	}
1828 
1829 	if (ahci_broken_lpm(pdev)) {
1830 		pi.flags |= ATA_FLAG_NO_LPM;
1831 		dev_warn(&pdev->dev,
1832 			 "BIOS update required for Link Power Management support\n");
1833 	}
1834 
1835 	if (ahci_broken_suspend(pdev)) {
1836 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1837 		dev_warn(&pdev->dev,
1838 			 "BIOS update required for suspend/resume\n");
1839 	}
1840 
1841 	if (ahci_broken_online(pdev)) {
1842 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1843 		dev_info(&pdev->dev,
1844 			 "online status unreliable, applying workaround\n");
1845 	}
1846 
1847 
1848 	/* Acer SA5-271 workaround modifies private_data */
1849 	acer_sa5_271_workaround(hpriv, pdev);
1850 
1851 	/* CAP.NP sometimes indicate the index of the last enabled
1852 	 * port, at other times, that of the last possible port, so
1853 	 * determining the maximum port number requires looking at
1854 	 * both CAP.NP and port_map.
1855 	 */
1856 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1857 
1858 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1859 	if (!host)
1860 		return -ENOMEM;
1861 	host->private_data = hpriv;
1862 
1863 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1864 		/* legacy intx interrupts */
1865 		pci_intx(pdev, 1);
1866 	}
1867 	hpriv->irq = pci_irq_vector(pdev, 0);
1868 
1869 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1870 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1871 	else
1872 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1873 
1874 	if (pi.flags & ATA_FLAG_EM)
1875 		ahci_reset_em(host);
1876 
1877 	for (i = 0; i < host->n_ports; i++) {
1878 		struct ata_port *ap = host->ports[i];
1879 
1880 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1881 		ata_port_pbar_desc(ap, ahci_pci_bar,
1882 				   0x100 + ap->port_no * 0x80, "port");
1883 
1884 		/* set enclosure management message type */
1885 		if (ap->flags & ATA_FLAG_EM)
1886 			ap->em_message_type = hpriv->em_msg_type;
1887 
1888 		ahci_update_initial_lpm_policy(ap, hpriv);
1889 
1890 		/* disabled/not-implemented port */
1891 		if (!(hpriv->port_map & (1 << i)))
1892 			ap->ops = &ata_dummy_port_ops;
1893 	}
1894 
1895 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1896 	ahci_p5wdh_workaround(host);
1897 
1898 	/* apply gtf filter quirk */
1899 	ahci_gtf_filter_workaround(host);
1900 
1901 	/* initialize adapter */
1902 	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1903 	if (rc)
1904 		return rc;
1905 
1906 	rc = ahci_reset_controller(host);
1907 	if (rc)
1908 		return rc;
1909 
1910 	ahci_pci_init_controller(host);
1911 	ahci_pci_print_info(host);
1912 
1913 	pci_set_master(pdev);
1914 
1915 	rc = ahci_host_activate(host, &ahci_sht);
1916 	if (rc)
1917 		return rc;
1918 
1919 	pm_runtime_put_noidle(&pdev->dev);
1920 	return 0;
1921 }
1922 
1923 static void ahci_shutdown_one(struct pci_dev *pdev)
1924 {
1925 	ata_pci_shutdown_one(pdev);
1926 }
1927 
1928 static void ahci_remove_one(struct pci_dev *pdev)
1929 {
1930 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1931 				     &dev_attr_remapped_nvme.attr,
1932 				     NULL);
1933 	pm_runtime_get_noresume(&pdev->dev);
1934 	ata_pci_remove_one(pdev);
1935 }
1936 
1937 module_pci_driver(ahci_pci_driver);
1938 
1939 MODULE_AUTHOR("Jeff Garzik");
1940 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1941 MODULE_LICENSE("GPL");
1942 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1943 MODULE_VERSION(DRV_VERSION);
1944