xref: /openbmc/linux/drivers/ata/ahci.c (revision b625fe69)
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_no_debounce_delay,
55 	board_ahci_nomsi,
56 	board_ahci_noncq,
57 	board_ahci_nosntf,
58 	board_ahci_yes_fbs,
59 
60 	/* board IDs for specific chipsets in alphabetical order */
61 	board_ahci_al,
62 	board_ahci_avn,
63 	board_ahci_mcp65,
64 	board_ahci_mcp77,
65 	board_ahci_mcp89,
66 	board_ahci_mv,
67 	board_ahci_sb600,
68 	board_ahci_sb700,	/* for SB700 and SB800 */
69 	board_ahci_vt8251,
70 
71 	/*
72 	 * board IDs for Intel chipsets that support more than 6 ports
73 	 * *and* end up needing the PCS quirk.
74 	 */
75 	board_ahci_pcs7,
76 
77 	/* aliases */
78 	board_ahci_mcp_linux	= board_ahci_mcp65,
79 	board_ahci_mcp67	= board_ahci_mcp65,
80 	board_ahci_mcp73	= board_ahci_mcp65,
81 	board_ahci_mcp79	= board_ahci_mcp77,
82 };
83 
84 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
85 static void ahci_remove_one(struct pci_dev *dev);
86 static void ahci_shutdown_one(struct pci_dev *dev);
87 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
88 				 unsigned long deadline);
89 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
90 			      unsigned long deadline);
91 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
92 static bool is_mcp89_apple(struct pci_dev *pdev);
93 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
94 				unsigned long deadline);
95 #ifdef CONFIG_PM
96 static int ahci_pci_device_runtime_suspend(struct device *dev);
97 static int ahci_pci_device_runtime_resume(struct device *dev);
98 #ifdef CONFIG_PM_SLEEP
99 static int ahci_pci_device_suspend(struct device *dev);
100 static int ahci_pci_device_resume(struct device *dev);
101 #endif
102 #endif /* CONFIG_PM */
103 
104 static struct scsi_host_template ahci_sht = {
105 	AHCI_SHT("ahci"),
106 };
107 
108 static struct ata_port_operations ahci_vt8251_ops = {
109 	.inherits		= &ahci_ops,
110 	.hardreset		= ahci_vt8251_hardreset,
111 };
112 
113 static struct ata_port_operations ahci_p5wdh_ops = {
114 	.inherits		= &ahci_ops,
115 	.hardreset		= ahci_p5wdh_hardreset,
116 };
117 
118 static struct ata_port_operations ahci_avn_ops = {
119 	.inherits		= &ahci_ops,
120 	.hardreset		= ahci_avn_hardreset,
121 };
122 
123 static const struct ata_port_info ahci_port_info[] = {
124 	/* by features */
125 	[board_ahci] = {
126 		.flags		= AHCI_FLAG_COMMON,
127 		.pio_mask	= ATA_PIO4,
128 		.udma_mask	= ATA_UDMA6,
129 		.port_ops	= &ahci_ops,
130 	},
131 	[board_ahci_ign_iferr] = {
132 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
133 		.flags		= AHCI_FLAG_COMMON,
134 		.pio_mask	= ATA_PIO4,
135 		.udma_mask	= ATA_UDMA6,
136 		.port_ops	= &ahci_ops,
137 	},
138 	[board_ahci_mobile] = {
139 		AHCI_HFLAGS	(AHCI_HFLAG_IS_MOBILE),
140 		.flags		= AHCI_FLAG_COMMON,
141 		.pio_mask	= ATA_PIO4,
142 		.udma_mask	= ATA_UDMA6,
143 		.port_ops	= &ahci_ops,
144 	},
145 	[board_ahci_no_debounce_delay] = {
146 		.flags		= AHCI_FLAG_COMMON,
147 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
148 		.pio_mask	= ATA_PIO4,
149 		.udma_mask	= ATA_UDMA6,
150 		.port_ops	= &ahci_ops,
151 	},
152 	[board_ahci_nomsi] = {
153 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
154 		.flags		= AHCI_FLAG_COMMON,
155 		.pio_mask	= ATA_PIO4,
156 		.udma_mask	= ATA_UDMA6,
157 		.port_ops	= &ahci_ops,
158 	},
159 	[board_ahci_noncq] = {
160 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
161 		.flags		= AHCI_FLAG_COMMON,
162 		.pio_mask	= ATA_PIO4,
163 		.udma_mask	= ATA_UDMA6,
164 		.port_ops	= &ahci_ops,
165 	},
166 	[board_ahci_nosntf] = {
167 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
168 		.flags		= AHCI_FLAG_COMMON,
169 		.pio_mask	= ATA_PIO4,
170 		.udma_mask	= ATA_UDMA6,
171 		.port_ops	= &ahci_ops,
172 	},
173 	[board_ahci_yes_fbs] = {
174 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
175 		.flags		= AHCI_FLAG_COMMON,
176 		.pio_mask	= ATA_PIO4,
177 		.udma_mask	= ATA_UDMA6,
178 		.port_ops	= &ahci_ops,
179 	},
180 	/* by chipsets */
181 	[board_ahci_al] = {
182 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
183 		.flags		= AHCI_FLAG_COMMON,
184 		.pio_mask	= ATA_PIO4,
185 		.udma_mask	= ATA_UDMA6,
186 		.port_ops	= &ahci_ops,
187 	},
188 	[board_ahci_avn] = {
189 		.flags		= AHCI_FLAG_COMMON,
190 		.pio_mask	= ATA_PIO4,
191 		.udma_mask	= ATA_UDMA6,
192 		.port_ops	= &ahci_avn_ops,
193 	},
194 	[board_ahci_mcp65] = {
195 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
196 				 AHCI_HFLAG_YES_NCQ),
197 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
198 		.pio_mask	= ATA_PIO4,
199 		.udma_mask	= ATA_UDMA6,
200 		.port_ops	= &ahci_ops,
201 	},
202 	[board_ahci_mcp77] = {
203 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
204 		.flags		= AHCI_FLAG_COMMON,
205 		.pio_mask	= ATA_PIO4,
206 		.udma_mask	= ATA_UDMA6,
207 		.port_ops	= &ahci_ops,
208 	},
209 	[board_ahci_mcp89] = {
210 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
211 		.flags		= AHCI_FLAG_COMMON,
212 		.pio_mask	= ATA_PIO4,
213 		.udma_mask	= ATA_UDMA6,
214 		.port_ops	= &ahci_ops,
215 	},
216 	[board_ahci_mv] = {
217 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
218 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
219 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
220 		.pio_mask	= ATA_PIO4,
221 		.udma_mask	= ATA_UDMA6,
222 		.port_ops	= &ahci_ops,
223 	},
224 	[board_ahci_sb600] = {
225 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
226 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
227 				 AHCI_HFLAG_32BIT_ONLY),
228 		.flags		= AHCI_FLAG_COMMON,
229 		.pio_mask	= ATA_PIO4,
230 		.udma_mask	= ATA_UDMA6,
231 		.port_ops	= &ahci_pmp_retry_srst_ops,
232 	},
233 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
234 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
235 		.flags		= AHCI_FLAG_COMMON,
236 		.pio_mask	= ATA_PIO4,
237 		.udma_mask	= ATA_UDMA6,
238 		.port_ops	= &ahci_pmp_retry_srst_ops,
239 	},
240 	[board_ahci_vt8251] = {
241 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
242 		.flags		= AHCI_FLAG_COMMON,
243 		.pio_mask	= ATA_PIO4,
244 		.udma_mask	= ATA_UDMA6,
245 		.port_ops	= &ahci_vt8251_ops,
246 	},
247 	[board_ahci_pcs7] = {
248 		.flags		= AHCI_FLAG_COMMON,
249 		.pio_mask	= ATA_PIO4,
250 		.udma_mask	= ATA_UDMA6,
251 		.port_ops	= &ahci_ops,
252 	},
253 };
254 
255 static const struct pci_device_id ahci_pci_tbl[] = {
256 	/* Intel */
257 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
258 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
259 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
260 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
261 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
262 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
263 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
264 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
265 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
266 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
267 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
268 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
269 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8/Lewisburg RAID*/
270 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
271 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
272 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
273 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
274 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
275 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
276 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
277 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
278 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_mobile }, /* ICH9M */
279 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_mobile }, /* ICH9M */
280 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_mobile }, /* ICH9M */
281 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_mobile }, /* ICH9M */
282 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_mobile }, /* ICH9M */
283 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
284 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_mobile }, /* ICH9M */
285 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
286 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
287 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
288 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
289 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
290 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
291 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
292 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
293 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
294 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_mobile }, /* PCH M AHCI */
295 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
296 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_mobile }, /* PCH M RAID */
297 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
302 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_mobile }, /* CPT M AHCI */
320 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
321 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_mobile }, /* CPT M RAID */
322 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
323 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
324 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
325 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
326 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
327 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG/Lewisburg RAID*/
328 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
329 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
330 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_mobile }, /* Panther M AHCI */
331 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
333 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
334 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_mobile }, /* Panther M RAID */
335 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
336 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_mobile }, /* Lynx M AHCI */
338 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
339 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_mobile }, /* Lynx M RAID */
340 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
341 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_mobile }, /* Lynx M RAID */
342 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
343 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_mobile }, /* Lynx M RAID */
344 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_mobile }, /* Lynx LP AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_mobile }, /* Lynx LP AHCI */
346 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_mobile }, /* Lynx LP RAID */
347 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_mobile }, /* Lynx LP RAID */
348 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_mobile }, /* Lynx LP RAID */
349 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_mobile }, /* Lynx LP RAID */
350 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_mobile }, /* Lynx LP RAID */
351 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_mobile }, /* Lynx LP RAID */
352 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_mobile }, /* Cannon Lake PCH-LP AHCI */
353 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
354 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
355 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
356 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
357 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
358 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
359 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
360 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
361 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
362 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
363 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
367 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
368 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
369 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
370 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg/Lewisburg RAID*/
371 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
372 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
373 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
374 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
375 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
376 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
377 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
378 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
379 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
380 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
381 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
382 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
383 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
384 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_mobile }, /* Wildcat LP AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_mobile }, /* Wildcat LP RAID */
386 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_mobile }, /* Wildcat LP RAID */
387 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_mobile }, /* Wildcat LP RAID */
388 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_mobile }, /* 9 Series M AHCI */
390 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
391 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_mobile }, /* 9 Series M RAID */
392 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
393 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_mobile }, /* 9 Series M RAID */
394 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
395 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_mobile }, /* 9 Series M RAID */
396 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_mobile }, /* Sunrise LP AHCI */
397 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_mobile }, /* Sunrise LP RAID */
398 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_mobile }, /* Sunrise LP RAID */
399 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
400 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_mobile }, /* Sunrise M AHCI */
401 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
402 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
403 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
404 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
405 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
406 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
407 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
408 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
409 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
410 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
411 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
412 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
413 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
414 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
415 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
416 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_mobile }, /* Bay Trail AHCI */
417 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_mobile }, /* Bay Trail AHCI */
418 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_mobile }, /* Cherry Tr. AHCI */
419 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_mobile }, /* ApolloLake AHCI */
420 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_mobile }, /* Ice Lake LP AHCI */
421 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_mobile }, /* Comet Lake PCH-U AHCI */
422 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_mobile }, /* Comet Lake PCH RAID */
423 
424 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
425 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
426 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
427 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
428 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
429 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
430 	/* May need to update quirk_jmicron_async_suspend() for additions */
431 
432 	/* ATI */
433 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
434 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
435 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
436 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
437 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
438 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
439 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
440 
441 	/* Amazon's Annapurna Labs support */
442 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
443 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
444 		.class_mask = 0xffffff,
445 		board_ahci_al },
446 	/* AMD */
447 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
448 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
449 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
450 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_mobile }, /* AMD Green Sardine */
451 	/* AMD is using RAID class only for ahci controllers */
452 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
453 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
454 
455 	/* Dell S140/S150 */
456 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
457 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
458 
459 	/* VIA */
460 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
461 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
462 
463 	/* NVIDIA */
464 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
465 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
466 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
467 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
468 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
469 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
470 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
471 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
472 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
473 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
474 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
475 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
476 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
477 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
478 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
479 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
480 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
481 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
482 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
483 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
485 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
486 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
487 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
488 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
489 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
490 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
491 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
492 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
493 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
494 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
495 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
501 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
502 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
503 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
504 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
505 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
506 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
507 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
508 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
509 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
510 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
511 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
513 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
514 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
515 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
516 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
517 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
518 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
519 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
520 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
548 
549 	/* SiS */
550 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
551 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
552 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
553 
554 	/* ST Microelectronics */
555 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
556 
557 	/* Marvell */
558 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
559 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
560 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
561 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
562 	  .class_mask = 0xffffff,
563 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
564 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
565 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
566 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
567 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
568 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
569 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
570 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
571 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
572 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
573 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
574 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
575 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
576 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
577 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
578 	  .driver_data = board_ahci_yes_fbs },
579 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
580 	  .driver_data = board_ahci_yes_fbs },
581 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
582 	  .driver_data = board_ahci_yes_fbs },
583 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
584 	  .driver_data = board_ahci_yes_fbs },
585 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
586 	  .driver_data = board_ahci_yes_fbs },
587 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
588 	  .driver_data = board_ahci_yes_fbs },
589 
590 	/* Promise */
591 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
592 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
593 
594 	/* Asmedia */
595 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
596 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
597 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
598 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
599 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
600 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
601 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci },   /* ASM1062+JMB575 */
602 
603 	/*
604 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
605 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
606 	 */
607 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
608 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
609 
610 	/* Enmotus */
611 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
612 
613 	/* Loongson */
614 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
615 
616 	/* Generic, PCI class code for AHCI */
617 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
618 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
619 
620 	{ }	/* terminate list */
621 };
622 
623 static const struct dev_pm_ops ahci_pci_pm_ops = {
624 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
625 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
626 			   ahci_pci_device_runtime_resume, NULL)
627 };
628 
629 static struct pci_driver ahci_pci_driver = {
630 	.name			= DRV_NAME,
631 	.id_table		= ahci_pci_tbl,
632 	.probe			= ahci_init_one,
633 	.remove			= ahci_remove_one,
634 	.shutdown		= ahci_shutdown_one,
635 	.driver = {
636 		.pm		= &ahci_pci_pm_ops,
637 	},
638 };
639 
640 #if IS_ENABLED(CONFIG_PATA_MARVELL)
641 static int marvell_enable;
642 #else
643 static int marvell_enable = 1;
644 #endif
645 module_param(marvell_enable, int, 0644);
646 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
647 
648 static int mobile_lpm_policy = -1;
649 module_param(mobile_lpm_policy, int, 0644);
650 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
651 
652 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
653 					 struct ahci_host_priv *hpriv)
654 {
655 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
656 		dev_info(&pdev->dev, "JMB361 has only one port\n");
657 		hpriv->force_port_map = 1;
658 	}
659 
660 	/*
661 	 * Temporary Marvell 6145 hack: PATA port presence
662 	 * is asserted through the standard AHCI port
663 	 * presence register, as bit 4 (counting from 0)
664 	 */
665 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
666 		if (pdev->device == 0x6121)
667 			hpriv->mask_port_map = 0x3;
668 		else
669 			hpriv->mask_port_map = 0xf;
670 		dev_info(&pdev->dev,
671 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
672 	}
673 
674 	ahci_save_initial_config(&pdev->dev, hpriv);
675 }
676 
677 static void ahci_pci_init_controller(struct ata_host *host)
678 {
679 	struct ahci_host_priv *hpriv = host->private_data;
680 	struct pci_dev *pdev = to_pci_dev(host->dev);
681 	void __iomem *port_mmio;
682 	u32 tmp;
683 	int mv;
684 
685 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
686 		if (pdev->device == 0x6121)
687 			mv = 2;
688 		else
689 			mv = 4;
690 		port_mmio = __ahci_port_base(host, mv);
691 
692 		writel(0, port_mmio + PORT_IRQ_MASK);
693 
694 		/* clear port IRQ */
695 		tmp = readl(port_mmio + PORT_IRQ_STAT);
696 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
697 		if (tmp)
698 			writel(tmp, port_mmio + PORT_IRQ_STAT);
699 	}
700 
701 	ahci_init_controller(host);
702 }
703 
704 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
705 				 unsigned long deadline)
706 {
707 	struct ata_port *ap = link->ap;
708 	struct ahci_host_priv *hpriv = ap->host->private_data;
709 	bool online;
710 	int rc;
711 
712 	hpriv->stop_engine(ap);
713 
714 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
715 				 deadline, &online, NULL);
716 
717 	hpriv->start_engine(ap);
718 
719 	/* vt8251 doesn't clear BSY on signature FIS reception,
720 	 * request follow-up softreset.
721 	 */
722 	return online ? -EAGAIN : rc;
723 }
724 
725 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
726 				unsigned long deadline)
727 {
728 	struct ata_port *ap = link->ap;
729 	struct ahci_port_priv *pp = ap->private_data;
730 	struct ahci_host_priv *hpriv = ap->host->private_data;
731 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
732 	struct ata_taskfile tf;
733 	bool online;
734 	int rc;
735 
736 	hpriv->stop_engine(ap);
737 
738 	/* clear D2H reception area to properly wait for D2H FIS */
739 	ata_tf_init(link->device, &tf);
740 	tf.command = ATA_BUSY;
741 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
742 
743 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
744 				 deadline, &online, NULL);
745 
746 	hpriv->start_engine(ap);
747 
748 	/* The pseudo configuration device on SIMG4726 attached to
749 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
750 	 * hardreset if no device is attached to the first downstream
751 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
752 	 * work around this, wait for !BSY only briefly.  If BSY isn't
753 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
754 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
755 	 *
756 	 * Wait for two seconds.  Devices attached to downstream port
757 	 * which can't process the following IDENTIFY after this will
758 	 * have to be reset again.  For most cases, this should
759 	 * suffice while making probing snappish enough.
760 	 */
761 	if (online) {
762 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
763 					  ahci_check_ready);
764 		if (rc)
765 			ahci_kick_engine(ap);
766 	}
767 	return rc;
768 }
769 
770 /*
771  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
772  *
773  * It has been observed with some SSDs that the timing of events in the
774  * link synchronization phase can leave the port in a state that can not
775  * be recovered by a SATA-hard-reset alone.  The failing signature is
776  * SStatus.DET stuck at 1 ("Device presence detected but Phy
777  * communication not established").  It was found that unloading and
778  * reloading the driver when this problem occurs allows the drive
779  * connection to be recovered (DET advanced to 0x3).  The critical
780  * component of reloading the driver is that the port state machines are
781  * reset by bouncing "port enable" in the AHCI PCS configuration
782  * register.  So, reproduce that effect by bouncing a port whenever we
783  * see DET==1 after a reset.
784  */
785 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
786 			      unsigned long deadline)
787 {
788 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
789 	struct ata_port *ap = link->ap;
790 	struct ahci_port_priv *pp = ap->private_data;
791 	struct ahci_host_priv *hpriv = ap->host->private_data;
792 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
793 	unsigned long tmo = deadline - jiffies;
794 	struct ata_taskfile tf;
795 	bool online;
796 	int rc, i;
797 
798 	hpriv->stop_engine(ap);
799 
800 	for (i = 0; i < 2; i++) {
801 		u16 val;
802 		u32 sstatus;
803 		int port = ap->port_no;
804 		struct ata_host *host = ap->host;
805 		struct pci_dev *pdev = to_pci_dev(host->dev);
806 
807 		/* clear D2H reception area to properly wait for D2H FIS */
808 		ata_tf_init(link->device, &tf);
809 		tf.command = ATA_BUSY;
810 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
811 
812 		rc = sata_link_hardreset(link, timing, deadline, &online,
813 				ahci_check_ready);
814 
815 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
816 				(sstatus & 0xf) != 1)
817 			break;
818 
819 		ata_link_info(link,  "avn bounce port%d\n", port);
820 
821 		pci_read_config_word(pdev, 0x92, &val);
822 		val &= ~(1 << port);
823 		pci_write_config_word(pdev, 0x92, val);
824 		ata_msleep(ap, 1000);
825 		val |= 1 << port;
826 		pci_write_config_word(pdev, 0x92, val);
827 		deadline += tmo;
828 	}
829 
830 	hpriv->start_engine(ap);
831 
832 	if (online)
833 		*class = ahci_dev_classify(ap);
834 
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 	hpriv = host->private_data;
1482 	mmio = hpriv->mmio;
1483 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1484 	if (!irq_stat)
1485 		return IRQ_NONE;
1486 
1487 	do {
1488 		irq_masked = irq_stat & hpriv->port_map;
1489 		spin_lock(&host->lock);
1490 		rc = ahci_handle_port_intr(host, irq_masked);
1491 		if (!rc)
1492 			handled = 0;
1493 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1494 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1495 		spin_unlock(&host->lock);
1496 	} while (irq_stat);
1497 
1498 	return IRQ_RETVAL(handled);
1499 }
1500 #endif
1501 
1502 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1503 		struct ahci_host_priv *hpriv)
1504 {
1505 	int i;
1506 	u32 cap;
1507 
1508 	/*
1509 	 * Check if this device might have remapped nvme devices.
1510 	 */
1511 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1512 	    pci_resource_len(pdev, bar) < SZ_512K ||
1513 	    bar != AHCI_PCI_BAR_STANDARD ||
1514 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1515 		return;
1516 
1517 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1518 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1519 		if ((cap & (1 << i)) == 0)
1520 			continue;
1521 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1522 				!= PCI_CLASS_STORAGE_EXPRESS)
1523 			continue;
1524 
1525 		/* We've found a remapped device */
1526 		hpriv->remapped_nvme++;
1527 	}
1528 
1529 	if (!hpriv->remapped_nvme)
1530 		return;
1531 
1532 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1533 		 hpriv->remapped_nvme);
1534 	dev_warn(&pdev->dev,
1535 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1536 
1537 	/*
1538 	 * Don't rely on the msi-x capability in the remap case,
1539 	 * share the legacy interrupt across ahci and remapped devices.
1540 	 */
1541 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1542 }
1543 
1544 static int ahci_get_irq_vector(struct ata_host *host, int port)
1545 {
1546 	return pci_irq_vector(to_pci_dev(host->dev), port);
1547 }
1548 
1549 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1550 			struct ahci_host_priv *hpriv)
1551 {
1552 	int nvec;
1553 
1554 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1555 		return -ENODEV;
1556 
1557 	/*
1558 	 * If number of MSIs is less than number of ports then Sharing Last
1559 	 * Message mode could be enforced. In this case assume that advantage
1560 	 * of multipe MSIs is negated and use single MSI mode instead.
1561 	 */
1562 	if (n_ports > 1) {
1563 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1564 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1565 		if (nvec > 0) {
1566 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1567 				hpriv->get_irq_vector = ahci_get_irq_vector;
1568 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1569 				return nvec;
1570 			}
1571 
1572 			/*
1573 			 * Fallback to single MSI mode if the controller
1574 			 * enforced MRSM mode.
1575 			 */
1576 			printk(KERN_INFO
1577 				"ahci: MRSM is on, fallback to single MSI\n");
1578 			pci_free_irq_vectors(pdev);
1579 		}
1580 	}
1581 
1582 	/*
1583 	 * If the host is not capable of supporting per-port vectors, fall
1584 	 * back to single MSI before finally attempting single MSI-X.
1585 	 */
1586 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1587 	if (nvec == 1)
1588 		return nvec;
1589 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1590 }
1591 
1592 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1593 					   struct ahci_host_priv *hpriv)
1594 {
1595 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1596 
1597 
1598 	/* Ignore processing for non mobile platforms */
1599 	if (!(hpriv->flags & AHCI_HFLAG_IS_MOBILE))
1600 		return;
1601 
1602 	/* user modified policy via module param */
1603 	if (mobile_lpm_policy != -1) {
1604 		policy = mobile_lpm_policy;
1605 		goto update_policy;
1606 	}
1607 
1608 #ifdef CONFIG_ACPI
1609 	if (policy > ATA_LPM_MED_POWER &&
1610 	    (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
1611 		if (hpriv->cap & HOST_CAP_PART)
1612 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1613 		else if (hpriv->cap & HOST_CAP_SSC)
1614 			policy = ATA_LPM_MIN_POWER;
1615 	}
1616 #endif
1617 
1618 update_policy:
1619 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1620 		ap->target_lpm_policy = policy;
1621 }
1622 
1623 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1624 {
1625 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1626 	u16 tmp16;
1627 
1628 	/*
1629 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1630 	 */
1631 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1632 		return;
1633 
1634 	/* Skip applying the quirk on Denverton and beyond */
1635 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1636 		return;
1637 
1638 	/*
1639 	 * port_map is determined from PORTS_IMPL PCI register which is
1640 	 * implemented as write or write-once register.  If the register
1641 	 * isn't programmed, ahci automatically generates it from number
1642 	 * of ports, which is good enough for PCS programming. It is
1643 	 * otherwise expected that platform firmware enables the ports
1644 	 * before the OS boots.
1645 	 */
1646 	pci_read_config_word(pdev, PCS_6, &tmp16);
1647 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1648 		tmp16 |= hpriv->port_map;
1649 		pci_write_config_word(pdev, PCS_6, tmp16);
1650 	}
1651 }
1652 
1653 static ssize_t remapped_nvme_show(struct device *dev,
1654 				  struct device_attribute *attr,
1655 				  char *buf)
1656 {
1657 	struct ata_host *host = dev_get_drvdata(dev);
1658 	struct ahci_host_priv *hpriv = host->private_data;
1659 
1660 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1661 }
1662 
1663 static DEVICE_ATTR_RO(remapped_nvme);
1664 
1665 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1666 {
1667 	unsigned int board_id = ent->driver_data;
1668 	struct ata_port_info pi = ahci_port_info[board_id];
1669 	const struct ata_port_info *ppi[] = { &pi, NULL };
1670 	struct device *dev = &pdev->dev;
1671 	struct ahci_host_priv *hpriv;
1672 	struct ata_host *host;
1673 	int n_ports, i, rc;
1674 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1675 
1676 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1677 
1678 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1679 
1680 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1681 	   can drive them all so if both drivers are selected make sure
1682 	   AHCI stays out of the way */
1683 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1684 		return -ENODEV;
1685 
1686 	/* Apple BIOS on MCP89 prevents us using AHCI */
1687 	if (is_mcp89_apple(pdev))
1688 		ahci_mcp89_apple_enable(pdev);
1689 
1690 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1691 	 * At the moment, we can only use the AHCI mode. Let the users know
1692 	 * that for SAS drives they're out of luck.
1693 	 */
1694 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1695 		dev_info(&pdev->dev,
1696 			 "PDC42819 can only drive SATA devices with this driver\n");
1697 
1698 	/* Some devices use non-standard BARs */
1699 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1700 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1701 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1702 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1703 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1704 		if (pdev->device == 0xa01c)
1705 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1706 		if (pdev->device == 0xa084)
1707 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1708 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1709 		if (pdev->device == 0x7a08)
1710 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1711 	}
1712 
1713 	/* acquire resources */
1714 	rc = pcim_enable_device(pdev);
1715 	if (rc)
1716 		return rc;
1717 
1718 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1719 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1720 		u8 map;
1721 
1722 		/* ICH6s share the same PCI ID for both piix and ahci
1723 		 * modes.  Enabling ahci mode while MAP indicates
1724 		 * combined mode is a bad idea.  Yield to ata_piix.
1725 		 */
1726 		pci_read_config_byte(pdev, ICH_MAP, &map);
1727 		if (map & 0x3) {
1728 			dev_info(&pdev->dev,
1729 				 "controller is in combined mode, can't enable AHCI mode\n");
1730 			return -ENODEV;
1731 		}
1732 	}
1733 
1734 	/* AHCI controllers often implement SFF compatible interface.
1735 	 * Grab all PCI BARs just in case.
1736 	 */
1737 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1738 	if (rc == -EBUSY)
1739 		pcim_pin_device(pdev);
1740 	if (rc)
1741 		return rc;
1742 
1743 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1744 	if (!hpriv)
1745 		return -ENOMEM;
1746 	hpriv->flags |= (unsigned long)pi.private_data;
1747 
1748 	/* MCP65 revision A1 and A2 can't do MSI */
1749 	if (board_id == board_ahci_mcp65 &&
1750 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1751 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1752 
1753 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1754 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1755 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1756 
1757 	/* only some SB600s can do 64bit DMA */
1758 	if (ahci_sb600_enable_64bit(pdev))
1759 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1760 
1761 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1762 
1763 	/* detect remapped nvme devices */
1764 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1765 
1766 	sysfs_add_file_to_group(&pdev->dev.kobj,
1767 				&dev_attr_remapped_nvme.attr,
1768 				NULL);
1769 
1770 	/* must set flag prior to save config in order to take effect */
1771 	if (ahci_broken_devslp(pdev))
1772 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1773 
1774 #ifdef CONFIG_ARM64
1775 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1776 	    pdev->device == 0xa235 &&
1777 	    pdev->revision < 0x30)
1778 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1779 
1780 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1781 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1782 #endif
1783 
1784 	/* save initial config */
1785 	ahci_pci_save_initial_config(pdev, hpriv);
1786 
1787 	/*
1788 	 * If platform firmware failed to enable ports, try to enable
1789 	 * them here.
1790 	 */
1791 	ahci_intel_pcs_quirk(pdev, hpriv);
1792 
1793 	/* prepare host */
1794 	if (hpriv->cap & HOST_CAP_NCQ) {
1795 		pi.flags |= ATA_FLAG_NCQ;
1796 		/*
1797 		 * Auto-activate optimization is supposed to be
1798 		 * supported on all AHCI controllers indicating NCQ
1799 		 * capability, but it seems to be broken on some
1800 		 * chipsets including NVIDIAs.
1801 		 */
1802 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1803 			pi.flags |= ATA_FLAG_FPDMA_AA;
1804 
1805 		/*
1806 		 * All AHCI controllers should be forward-compatible
1807 		 * with the new auxiliary field. This code should be
1808 		 * conditionalized if any buggy AHCI controllers are
1809 		 * encountered.
1810 		 */
1811 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1812 	}
1813 
1814 	if (hpriv->cap & HOST_CAP_PMP)
1815 		pi.flags |= ATA_FLAG_PMP;
1816 
1817 	ahci_set_em_messages(hpriv, &pi);
1818 
1819 	if (ahci_broken_system_poweroff(pdev)) {
1820 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1821 		dev_info(&pdev->dev,
1822 			"quirky BIOS, skipping spindown on poweroff\n");
1823 	}
1824 
1825 	if (ahci_broken_lpm(pdev)) {
1826 		pi.flags |= ATA_FLAG_NO_LPM;
1827 		dev_warn(&pdev->dev,
1828 			 "BIOS update required for Link Power Management support\n");
1829 	}
1830 
1831 	if (ahci_broken_suspend(pdev)) {
1832 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1833 		dev_warn(&pdev->dev,
1834 			 "BIOS update required for suspend/resume\n");
1835 	}
1836 
1837 	if (ahci_broken_online(pdev)) {
1838 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1839 		dev_info(&pdev->dev,
1840 			 "online status unreliable, applying workaround\n");
1841 	}
1842 
1843 
1844 	/* Acer SA5-271 workaround modifies private_data */
1845 	acer_sa5_271_workaround(hpriv, pdev);
1846 
1847 	/* CAP.NP sometimes indicate the index of the last enabled
1848 	 * port, at other times, that of the last possible port, so
1849 	 * determining the maximum port number requires looking at
1850 	 * both CAP.NP and port_map.
1851 	 */
1852 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1853 
1854 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1855 	if (!host)
1856 		return -ENOMEM;
1857 	host->private_data = hpriv;
1858 
1859 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1860 		/* legacy intx interrupts */
1861 		pci_intx(pdev, 1);
1862 	}
1863 	hpriv->irq = pci_irq_vector(pdev, 0);
1864 
1865 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1866 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1867 	else
1868 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1869 
1870 	if (pi.flags & ATA_FLAG_EM)
1871 		ahci_reset_em(host);
1872 
1873 	for (i = 0; i < host->n_ports; i++) {
1874 		struct ata_port *ap = host->ports[i];
1875 
1876 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1877 		ata_port_pbar_desc(ap, ahci_pci_bar,
1878 				   0x100 + ap->port_no * 0x80, "port");
1879 
1880 		/* set enclosure management message type */
1881 		if (ap->flags & ATA_FLAG_EM)
1882 			ap->em_message_type = hpriv->em_msg_type;
1883 
1884 		ahci_update_initial_lpm_policy(ap, hpriv);
1885 
1886 		/* disabled/not-implemented port */
1887 		if (!(hpriv->port_map & (1 << i)))
1888 			ap->ops = &ata_dummy_port_ops;
1889 	}
1890 
1891 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1892 	ahci_p5wdh_workaround(host);
1893 
1894 	/* apply gtf filter quirk */
1895 	ahci_gtf_filter_workaround(host);
1896 
1897 	/* initialize adapter */
1898 	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1899 	if (rc)
1900 		return rc;
1901 
1902 	rc = ahci_reset_controller(host);
1903 	if (rc)
1904 		return rc;
1905 
1906 	ahci_pci_init_controller(host);
1907 	ahci_pci_print_info(host);
1908 
1909 	pci_set_master(pdev);
1910 
1911 	rc = ahci_host_activate(host, &ahci_sht);
1912 	if (rc)
1913 		return rc;
1914 
1915 	pm_runtime_put_noidle(&pdev->dev);
1916 	return 0;
1917 }
1918 
1919 static void ahci_shutdown_one(struct pci_dev *pdev)
1920 {
1921 	ata_pci_shutdown_one(pdev);
1922 }
1923 
1924 static void ahci_remove_one(struct pci_dev *pdev)
1925 {
1926 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1927 				     &dev_attr_remapped_nvme.attr,
1928 				     NULL);
1929 	pm_runtime_get_noresume(&pdev->dev);
1930 	ata_pci_remove_one(pdev);
1931 }
1932 
1933 module_pci_driver(ahci_pci_driver);
1934 
1935 MODULE_AUTHOR("Jeff Garzik");
1936 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1937 MODULE_LICENSE("GPL");
1938 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1939 MODULE_VERSION(DRV_VERSION);
1940