xref: /openbmc/linux/drivers/ata/ahci.c (revision 52945c1c)
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 <scsi/scsi_host.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <linux/libata.h>
32 #include <linux/ahci-remap.h>
33 #include <linux/io-64-nonatomic-lo-hi.h>
34 #include "ahci.h"
35 
36 #define DRV_NAME	"ahci"
37 #define DRV_VERSION	"3.0"
38 
39 enum {
40 	AHCI_PCI_BAR_STA2X11	= 0,
41 	AHCI_PCI_BAR_CAVIUM	= 0,
42 	AHCI_PCI_BAR_LOONGSON	= 0,
43 	AHCI_PCI_BAR_ENMOTUS	= 2,
44 	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
45 	AHCI_PCI_BAR_STANDARD	= 5,
46 };
47 
48 enum board_ids {
49 	/* board IDs by feature in alphabetical order */
50 	board_ahci,
51 	board_ahci_ign_iferr,
52 	board_ahci_low_power,
53 	board_ahci_no_debounce_delay,
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_low_power] = {
138 		AHCI_HFLAGS	(AHCI_HFLAG_USE_LPM_POLICY),
139 		.flags		= AHCI_FLAG_COMMON,
140 		.pio_mask	= ATA_PIO4,
141 		.udma_mask	= ATA_UDMA6,
142 		.port_ops	= &ahci_ops,
143 	},
144 	[board_ahci_no_debounce_delay] = {
145 		.flags		= AHCI_FLAG_COMMON,
146 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
147 		.pio_mask	= ATA_PIO4,
148 		.udma_mask	= ATA_UDMA6,
149 		.port_ops	= &ahci_ops,
150 	},
151 	[board_ahci_nomsi] = {
152 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
153 		.flags		= AHCI_FLAG_COMMON,
154 		.pio_mask	= ATA_PIO4,
155 		.udma_mask	= ATA_UDMA6,
156 		.port_ops	= &ahci_ops,
157 	},
158 	[board_ahci_noncq] = {
159 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
160 		.flags		= AHCI_FLAG_COMMON,
161 		.pio_mask	= ATA_PIO4,
162 		.udma_mask	= ATA_UDMA6,
163 		.port_ops	= &ahci_ops,
164 	},
165 	[board_ahci_nosntf] = {
166 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
167 		.flags		= AHCI_FLAG_COMMON,
168 		.pio_mask	= ATA_PIO4,
169 		.udma_mask	= ATA_UDMA6,
170 		.port_ops	= &ahci_ops,
171 	},
172 	[board_ahci_yes_fbs] = {
173 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
174 		.flags		= AHCI_FLAG_COMMON,
175 		.pio_mask	= ATA_PIO4,
176 		.udma_mask	= ATA_UDMA6,
177 		.port_ops	= &ahci_ops,
178 	},
179 	/* by chipsets */
180 	[board_ahci_al] = {
181 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
182 		.flags		= AHCI_FLAG_COMMON,
183 		.pio_mask	= ATA_PIO4,
184 		.udma_mask	= ATA_UDMA6,
185 		.port_ops	= &ahci_ops,
186 	},
187 	[board_ahci_avn] = {
188 		.flags		= AHCI_FLAG_COMMON,
189 		.pio_mask	= ATA_PIO4,
190 		.udma_mask	= ATA_UDMA6,
191 		.port_ops	= &ahci_avn_ops,
192 	},
193 	[board_ahci_mcp65] = {
194 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
195 				 AHCI_HFLAG_YES_NCQ),
196 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
197 		.pio_mask	= ATA_PIO4,
198 		.udma_mask	= ATA_UDMA6,
199 		.port_ops	= &ahci_ops,
200 	},
201 	[board_ahci_mcp77] = {
202 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
203 		.flags		= AHCI_FLAG_COMMON,
204 		.pio_mask	= ATA_PIO4,
205 		.udma_mask	= ATA_UDMA6,
206 		.port_ops	= &ahci_ops,
207 	},
208 	[board_ahci_mcp89] = {
209 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
210 		.flags		= AHCI_FLAG_COMMON,
211 		.pio_mask	= ATA_PIO4,
212 		.udma_mask	= ATA_UDMA6,
213 		.port_ops	= &ahci_ops,
214 	},
215 	[board_ahci_mv] = {
216 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
217 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
218 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
219 		.pio_mask	= ATA_PIO4,
220 		.udma_mask	= ATA_UDMA6,
221 		.port_ops	= &ahci_ops,
222 	},
223 	[board_ahci_sb600] = {
224 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
225 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
226 				 AHCI_HFLAG_32BIT_ONLY),
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_sb700] = {	/* for SB700 and SB800 */
233 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
234 		.flags		= AHCI_FLAG_COMMON,
235 		.pio_mask	= ATA_PIO4,
236 		.udma_mask	= ATA_UDMA6,
237 		.port_ops	= &ahci_pmp_retry_srst_ops,
238 	},
239 	[board_ahci_vt8251] = {
240 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
241 		.flags		= AHCI_FLAG_COMMON,
242 		.pio_mask	= ATA_PIO4,
243 		.udma_mask	= ATA_UDMA6,
244 		.port_ops	= &ahci_vt8251_ops,
245 	},
246 	[board_ahci_pcs7] = {
247 		.flags		= AHCI_FLAG_COMMON,
248 		.pio_mask	= ATA_PIO4,
249 		.udma_mask	= ATA_UDMA6,
250 		.port_ops	= &ahci_ops,
251 	},
252 };
253 
254 static const struct pci_device_id ahci_pci_tbl[] = {
255 	/* Intel */
256 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
257 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
258 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
259 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
260 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
261 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
262 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
263 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
264 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
265 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
266 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
267 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
268 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8/Lewisburg RAID*/
269 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
270 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
271 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
272 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
273 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
274 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
275 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
276 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
277 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_low_power }, /* ICH9M */
278 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_low_power }, /* ICH9M */
279 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_low_power }, /* ICH9M */
280 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_low_power }, /* ICH9M */
281 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_low_power }, /* ICH9M */
282 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
283 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_low_power }, /* ICH9M */
284 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
285 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
286 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
287 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
288 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
289 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
290 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
291 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
292 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
293 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_low_power }, /* PCH M AHCI */
294 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
295 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_low_power }, /* PCH M RAID */
296 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
297 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
302 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_low_power }, /* CPT M AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
320 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_low_power }, /* CPT M RAID */
321 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
322 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
323 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
324 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
325 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
326 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
327 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
328 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_low_power }, /* Panther M AHCI */
329 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
330 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
331 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_low_power }, /* Panther M RAID */
333 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
334 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
335 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_low_power }, /* Lynx M AHCI */
336 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
337 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_low_power }, /* Lynx M RAID */
338 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
339 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_low_power }, /* Lynx M RAID */
340 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
341 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_low_power }, /* Lynx M RAID */
342 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_low_power }, /* Lynx LP AHCI */
343 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_low_power }, /* Lynx LP AHCI */
344 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_low_power }, /* Lynx LP RAID */
345 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_low_power }, /* Lynx LP RAID */
346 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_low_power }, /* Lynx LP RAID */
347 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_low_power }, /* Lynx LP RAID */
348 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_low_power }, /* Lynx LP RAID */
349 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_low_power }, /* Lynx LP RAID */
350 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_low_power }, /* Cannon Lake PCH-LP AHCI */
351 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
352 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
353 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
354 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
355 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
356 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
357 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
358 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
359 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
360 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
361 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
362 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
363 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
367 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
368 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* *burg SATA0 'RAID' */
369 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* *burg SATA1 'RAID' */
370 	{ PCI_VDEVICE(INTEL, 0x282f), board_ahci }, /* *burg SATA2 '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_low_power }, /* Wildcat LP AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_low_power }, /* Wildcat LP RAID */
386 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_low_power }, /* Wildcat LP RAID */
387 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_low_power }, /* Wildcat LP RAID */
388 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_low_power }, /* 9 Series M AHCI */
390 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
391 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_low_power }, /* 9 Series M RAID */
392 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
393 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_low_power }, /* 9 Series M RAID */
394 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
395 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_low_power }, /* 9 Series M RAID */
396 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_low_power }, /* Sunrise LP AHCI */
397 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_low_power }, /* Sunrise LP RAID */
398 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_low_power }, /* Sunrise LP RAID */
399 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
400 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_low_power }, /* 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_low_power }, /* 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_low_power }, /* Bay Trail AHCI */
417 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_low_power }, /* Bay Trail AHCI */
418 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_low_power }, /* Cherry Tr. AHCI */
419 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_low_power }, /* ApolloLake AHCI */
420 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_low_power }, /* Ice Lake LP AHCI */
421 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_low_power }, /* Comet Lake PCH-U AHCI */
422 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* 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_low_power }, /* 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_MARVELL_EXT, 0x9235),
586 	  .driver_data = board_ahci_no_debounce_delay },
587 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
588 	  .driver_data = board_ahci_yes_fbs },
589 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
590 	  .driver_data = board_ahci_yes_fbs },
591 
592 	/* Promise */
593 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
594 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
595 
596 	/* Asmedia */
597 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
598 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
599 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
600 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
601 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
602 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
603 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci },   /* ASM1062+JMB575 */
604 
605 	/*
606 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
607 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
608 	 */
609 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
610 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
611 
612 	/* Enmotus */
613 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
614 
615 	/* Loongson */
616 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
617 
618 	/* Generic, PCI class code for AHCI */
619 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
620 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
621 
622 	{ }	/* terminate list */
623 };
624 
625 static const struct dev_pm_ops ahci_pci_pm_ops = {
626 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
627 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
628 			   ahci_pci_device_runtime_resume, NULL)
629 };
630 
631 static struct pci_driver ahci_pci_driver = {
632 	.name			= DRV_NAME,
633 	.id_table		= ahci_pci_tbl,
634 	.probe			= ahci_init_one,
635 	.remove			= ahci_remove_one,
636 	.shutdown		= ahci_shutdown_one,
637 	.driver = {
638 		.pm		= &ahci_pci_pm_ops,
639 	},
640 };
641 
642 #if IS_ENABLED(CONFIG_PATA_MARVELL)
643 static int marvell_enable;
644 #else
645 static int marvell_enable = 1;
646 #endif
647 module_param(marvell_enable, int, 0644);
648 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
649 
650 static int mobile_lpm_policy = -1;
651 module_param(mobile_lpm_policy, int, 0644);
652 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
653 
654 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
655 					 struct ahci_host_priv *hpriv)
656 {
657 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
658 		dev_info(&pdev->dev, "JMB361 has only one port\n");
659 		hpriv->saved_port_map = 1;
660 	}
661 
662 	/*
663 	 * Temporary Marvell 6145 hack: PATA port presence
664 	 * is asserted through the standard AHCI port
665 	 * presence register, as bit 4 (counting from 0)
666 	 */
667 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
668 		if (pdev->device == 0x6121)
669 			hpriv->mask_port_map = 0x3;
670 		else
671 			hpriv->mask_port_map = 0xf;
672 		dev_info(&pdev->dev,
673 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
674 	}
675 
676 	ahci_save_initial_config(&pdev->dev, hpriv);
677 }
678 
679 static void ahci_pci_init_controller(struct ata_host *host)
680 {
681 	struct ahci_host_priv *hpriv = host->private_data;
682 	struct pci_dev *pdev = to_pci_dev(host->dev);
683 	void __iomem *port_mmio;
684 	u32 tmp;
685 	int mv;
686 
687 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
688 		if (pdev->device == 0x6121)
689 			mv = 2;
690 		else
691 			mv = 4;
692 		port_mmio = __ahci_port_base(hpriv, mv);
693 
694 		writel(0, port_mmio + PORT_IRQ_MASK);
695 
696 		/* clear port IRQ */
697 		tmp = readl(port_mmio + PORT_IRQ_STAT);
698 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
699 		if (tmp)
700 			writel(tmp, port_mmio + PORT_IRQ_STAT);
701 	}
702 
703 	ahci_init_controller(host);
704 }
705 
706 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
707 				 unsigned long deadline)
708 {
709 	struct ata_port *ap = link->ap;
710 	struct ahci_host_priv *hpriv = ap->host->private_data;
711 	bool online;
712 	int rc;
713 
714 	hpriv->stop_engine(ap);
715 
716 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
717 				 deadline, &online, NULL);
718 
719 	hpriv->start_engine(ap);
720 
721 	/* vt8251 doesn't clear BSY on signature FIS reception,
722 	 * request follow-up softreset.
723 	 */
724 	return online ? -EAGAIN : rc;
725 }
726 
727 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
728 				unsigned long deadline)
729 {
730 	struct ata_port *ap = link->ap;
731 	struct ahci_port_priv *pp = ap->private_data;
732 	struct ahci_host_priv *hpriv = ap->host->private_data;
733 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
734 	struct ata_taskfile tf;
735 	bool online;
736 	int rc;
737 
738 	hpriv->stop_engine(ap);
739 
740 	/* clear D2H reception area to properly wait for D2H FIS */
741 	ata_tf_init(link->device, &tf);
742 	tf.status = ATA_BUSY;
743 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
744 
745 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
746 				 deadline, &online, NULL);
747 
748 	hpriv->start_engine(ap);
749 
750 	/* The pseudo configuration device on SIMG4726 attached to
751 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
752 	 * hardreset if no device is attached to the first downstream
753 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
754 	 * work around this, wait for !BSY only briefly.  If BSY isn't
755 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
756 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
757 	 *
758 	 * Wait for two seconds.  Devices attached to downstream port
759 	 * which can't process the following IDENTIFY after this will
760 	 * have to be reset again.  For most cases, this should
761 	 * suffice while making probing snappish enough.
762 	 */
763 	if (online) {
764 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
765 					  ahci_check_ready);
766 		if (rc)
767 			ahci_kick_engine(ap);
768 	}
769 	return rc;
770 }
771 
772 /*
773  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
774  *
775  * It has been observed with some SSDs that the timing of events in the
776  * link synchronization phase can leave the port in a state that can not
777  * be recovered by a SATA-hard-reset alone.  The failing signature is
778  * SStatus.DET stuck at 1 ("Device presence detected but Phy
779  * communication not established").  It was found that unloading and
780  * reloading the driver when this problem occurs allows the drive
781  * connection to be recovered (DET advanced to 0x3).  The critical
782  * component of reloading the driver is that the port state machines are
783  * reset by bouncing "port enable" in the AHCI PCS configuration
784  * register.  So, reproduce that effect by bouncing a port whenever we
785  * see DET==1 after a reset.
786  */
787 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
788 			      unsigned long deadline)
789 {
790 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
791 	struct ata_port *ap = link->ap;
792 	struct ahci_port_priv *pp = ap->private_data;
793 	struct ahci_host_priv *hpriv = ap->host->private_data;
794 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
795 	unsigned long tmo = deadline - jiffies;
796 	struct ata_taskfile tf;
797 	bool online;
798 	int rc, i;
799 
800 	hpriv->stop_engine(ap);
801 
802 	for (i = 0; i < 2; i++) {
803 		u16 val;
804 		u32 sstatus;
805 		int port = ap->port_no;
806 		struct ata_host *host = ap->host;
807 		struct pci_dev *pdev = to_pci_dev(host->dev);
808 
809 		/* clear D2H reception area to properly wait for D2H FIS */
810 		ata_tf_init(link->device, &tf);
811 		tf.status = ATA_BUSY;
812 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
813 
814 		rc = sata_link_hardreset(link, timing, deadline, &online,
815 				ahci_check_ready);
816 
817 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
818 				(sstatus & 0xf) != 1)
819 			break;
820 
821 		ata_link_info(link,  "avn bounce port%d\n", port);
822 
823 		pci_read_config_word(pdev, 0x92, &val);
824 		val &= ~(1 << port);
825 		pci_write_config_word(pdev, 0x92, val);
826 		ata_msleep(ap, 1000);
827 		val |= 1 << port;
828 		pci_write_config_word(pdev, 0x92, val);
829 		deadline += tmo;
830 	}
831 
832 	hpriv->start_engine(ap);
833 
834 	if (online)
835 		*class = ahci_dev_classify(ap);
836 
837 	return rc;
838 }
839 
840 
841 #ifdef CONFIG_PM
842 static void ahci_pci_disable_interrupts(struct ata_host *host)
843 {
844 	struct ahci_host_priv *hpriv = host->private_data;
845 	void __iomem *mmio = hpriv->mmio;
846 	u32 ctl;
847 
848 	/* AHCI spec rev1.1 section 8.3.3:
849 	 * Software must disable interrupts prior to requesting a
850 	 * transition of the HBA to D3 state.
851 	 */
852 	ctl = readl(mmio + HOST_CTL);
853 	ctl &= ~HOST_IRQ_EN;
854 	writel(ctl, mmio + HOST_CTL);
855 	readl(mmio + HOST_CTL); /* flush */
856 }
857 
858 static int ahci_pci_device_runtime_suspend(struct device *dev)
859 {
860 	struct pci_dev *pdev = to_pci_dev(dev);
861 	struct ata_host *host = pci_get_drvdata(pdev);
862 
863 	ahci_pci_disable_interrupts(host);
864 	return 0;
865 }
866 
867 static int ahci_pci_device_runtime_resume(struct device *dev)
868 {
869 	struct pci_dev *pdev = to_pci_dev(dev);
870 	struct ata_host *host = pci_get_drvdata(pdev);
871 	int rc;
872 
873 	rc = ahci_reset_controller(host);
874 	if (rc)
875 		return rc;
876 	ahci_pci_init_controller(host);
877 	return 0;
878 }
879 
880 #ifdef CONFIG_PM_SLEEP
881 static int ahci_pci_device_suspend(struct device *dev)
882 {
883 	struct pci_dev *pdev = to_pci_dev(dev);
884 	struct ata_host *host = pci_get_drvdata(pdev);
885 	struct ahci_host_priv *hpriv = host->private_data;
886 
887 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
888 		dev_err(&pdev->dev,
889 			"BIOS update required for suspend/resume\n");
890 		return -EIO;
891 	}
892 
893 	ahci_pci_disable_interrupts(host);
894 	ata_host_suspend(host, PMSG_SUSPEND);
895 	return 0;
896 }
897 
898 static int ahci_pci_device_resume(struct device *dev)
899 {
900 	struct pci_dev *pdev = to_pci_dev(dev);
901 	struct ata_host *host = pci_get_drvdata(pdev);
902 	int rc;
903 
904 	/* Apple BIOS helpfully mangles the registers on resume */
905 	if (is_mcp89_apple(pdev))
906 		ahci_mcp89_apple_enable(pdev);
907 
908 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
909 		rc = ahci_reset_controller(host);
910 		if (rc)
911 			return rc;
912 
913 		ahci_pci_init_controller(host);
914 	}
915 
916 	ata_host_resume(host);
917 
918 	return 0;
919 }
920 #endif
921 
922 #endif /* CONFIG_PM */
923 
924 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
925 {
926 	const int dma_bits = using_dac ? 64 : 32;
927 	int rc;
928 
929 	/*
930 	 * If the device fixup already set the dma_mask to some non-standard
931 	 * value, don't extend it here. This happens on STA2X11, for example.
932 	 *
933 	 * XXX: manipulating the DMA mask from platform code is completely
934 	 * bogus, platform code should use dev->bus_dma_limit instead..
935 	 */
936 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
937 		return 0;
938 
939 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
940 	if (rc)
941 		dev_err(&pdev->dev, "DMA enable failed\n");
942 	return rc;
943 }
944 
945 static void ahci_pci_print_info(struct ata_host *host)
946 {
947 	struct pci_dev *pdev = to_pci_dev(host->dev);
948 	u16 cc;
949 	const char *scc_s;
950 
951 	pci_read_config_word(pdev, 0x0a, &cc);
952 	if (cc == PCI_CLASS_STORAGE_IDE)
953 		scc_s = "IDE";
954 	else if (cc == PCI_CLASS_STORAGE_SATA)
955 		scc_s = "SATA";
956 	else if (cc == PCI_CLASS_STORAGE_RAID)
957 		scc_s = "RAID";
958 	else
959 		scc_s = "unknown";
960 
961 	ahci_print_info(host, scc_s);
962 }
963 
964 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
965  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
966  * support PMP and the 4726 either directly exports the device
967  * attached to the first downstream port or acts as a hardware storage
968  * controller and emulate a single ATA device (can be RAID 0/1 or some
969  * other configuration).
970  *
971  * When there's no device attached to the first downstream port of the
972  * 4726, "Config Disk" appears, which is a pseudo ATA device to
973  * configure the 4726.  However, ATA emulation of the device is very
974  * lame.  It doesn't send signature D2H Reg FIS after the initial
975  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
976  *
977  * The following function works around the problem by always using
978  * hardreset on the port and not depending on receiving signature FIS
979  * afterward.  If signature FIS isn't received soon, ATA class is
980  * assumed without follow-up softreset.
981  */
982 static void ahci_p5wdh_workaround(struct ata_host *host)
983 {
984 	static const struct dmi_system_id sysids[] = {
985 		{
986 			.ident = "P5W DH Deluxe",
987 			.matches = {
988 				DMI_MATCH(DMI_SYS_VENDOR,
989 					  "ASUSTEK COMPUTER INC"),
990 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
991 			},
992 		},
993 		{ }
994 	};
995 	struct pci_dev *pdev = to_pci_dev(host->dev);
996 
997 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
998 	    dmi_check_system(sysids)) {
999 		struct ata_port *ap = host->ports[1];
1000 
1001 		dev_info(&pdev->dev,
1002 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1003 
1004 		ap->ops = &ahci_p5wdh_ops;
1005 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1006 	}
1007 }
1008 
1009 /*
1010  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1011  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1012  */
1013 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1014 {
1015 	u32 val;
1016 
1017 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1018 
1019 	pci_read_config_dword(pdev, 0xf8, &val);
1020 	val |= 1 << 0x1b;
1021 	/* the following changes the device ID, but appears not to affect function */
1022 	/* val = (val & ~0xf0000000) | 0x80000000; */
1023 	pci_write_config_dword(pdev, 0xf8, val);
1024 
1025 	pci_read_config_dword(pdev, 0x54c, &val);
1026 	val |= 1 << 0xc;
1027 	pci_write_config_dword(pdev, 0x54c, val);
1028 
1029 	pci_read_config_dword(pdev, 0x4a4, &val);
1030 	val &= 0xff;
1031 	val |= 0x01060100;
1032 	pci_write_config_dword(pdev, 0x4a4, val);
1033 
1034 	pci_read_config_dword(pdev, 0x54c, &val);
1035 	val &= ~(1 << 0xc);
1036 	pci_write_config_dword(pdev, 0x54c, val);
1037 
1038 	pci_read_config_dword(pdev, 0xf8, &val);
1039 	val &= ~(1 << 0x1b);
1040 	pci_write_config_dword(pdev, 0xf8, val);
1041 }
1042 
1043 static bool is_mcp89_apple(struct pci_dev *pdev)
1044 {
1045 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1046 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1047 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1048 		pdev->subsystem_device == 0xcb89;
1049 }
1050 
1051 /* only some SB600 ahci controllers can do 64bit DMA */
1052 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1053 {
1054 	static const struct dmi_system_id sysids[] = {
1055 		/*
1056 		 * The oldest version known to be broken is 0901 and
1057 		 * working is 1501 which was released on 2007-10-26.
1058 		 * Enable 64bit DMA on 1501 and anything newer.
1059 		 *
1060 		 * Please read bko#9412 for more info.
1061 		 */
1062 		{
1063 			.ident = "ASUS M2A-VM",
1064 			.matches = {
1065 				DMI_MATCH(DMI_BOARD_VENDOR,
1066 					  "ASUSTeK Computer INC."),
1067 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1068 			},
1069 			.driver_data = "20071026",	/* yyyymmdd */
1070 		},
1071 		/*
1072 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1073 		 * support 64bit DMA.
1074 		 *
1075 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1076 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1077 		 * This spelling mistake was fixed in BIOS version 1.5, so
1078 		 * 1.5 and later have the Manufacturer as
1079 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1080 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1081 		 *
1082 		 * BIOS versions earlier than 1.9 had a Board Product Name
1083 		 * DMI field of "MS-7376". This was changed to be
1084 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1085 		 * match on DMI_BOARD_NAME of "MS-7376".
1086 		 */
1087 		{
1088 			.ident = "MSI K9A2 Platinum",
1089 			.matches = {
1090 				DMI_MATCH(DMI_BOARD_VENDOR,
1091 					  "MICRO-STAR INTER"),
1092 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1093 			},
1094 		},
1095 		/*
1096 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1097 		 * 64bit DMA.
1098 		 *
1099 		 * This board also had the typo mentioned above in the
1100 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1101 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1102 		 */
1103 		{
1104 			.ident = "MSI K9AGM2",
1105 			.matches = {
1106 				DMI_MATCH(DMI_BOARD_VENDOR,
1107 					  "MICRO-STAR INTER"),
1108 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1109 			},
1110 		},
1111 		/*
1112 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1113 		 * (all release versions from 0301 to 1206 were tested)
1114 		 */
1115 		{
1116 			.ident = "ASUS M3A",
1117 			.matches = {
1118 				DMI_MATCH(DMI_BOARD_VENDOR,
1119 					  "ASUSTeK Computer INC."),
1120 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1121 			},
1122 		},
1123 		{ }
1124 	};
1125 	const struct dmi_system_id *match;
1126 	int year, month, date;
1127 	char buf[9];
1128 
1129 	match = dmi_first_match(sysids);
1130 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1131 	    !match)
1132 		return false;
1133 
1134 	if (!match->driver_data)
1135 		goto enable_64bit;
1136 
1137 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1138 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1139 
1140 	if (strcmp(buf, match->driver_data) >= 0)
1141 		goto enable_64bit;
1142 	else {
1143 		dev_warn(&pdev->dev,
1144 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1145 			 match->ident);
1146 		return false;
1147 	}
1148 
1149 enable_64bit:
1150 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1151 	return true;
1152 }
1153 
1154 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1155 {
1156 	static const struct dmi_system_id broken_systems[] = {
1157 		{
1158 			.ident = "HP Compaq nx6310",
1159 			.matches = {
1160 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1161 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1162 			},
1163 			/* PCI slot number of the controller */
1164 			.driver_data = (void *)0x1FUL,
1165 		},
1166 		{
1167 			.ident = "HP Compaq 6720s",
1168 			.matches = {
1169 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1170 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1171 			},
1172 			/* PCI slot number of the controller */
1173 			.driver_data = (void *)0x1FUL,
1174 		},
1175 
1176 		{ }	/* terminate list */
1177 	};
1178 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1179 
1180 	if (dmi) {
1181 		unsigned long slot = (unsigned long)dmi->driver_data;
1182 		/* apply the quirk only to on-board controllers */
1183 		return slot == PCI_SLOT(pdev->devfn);
1184 	}
1185 
1186 	return false;
1187 }
1188 
1189 static bool ahci_broken_suspend(struct pci_dev *pdev)
1190 {
1191 	static const struct dmi_system_id sysids[] = {
1192 		/*
1193 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1194 		 * to the harddisk doesn't become online after
1195 		 * resuming from STR.  Warn and fail suspend.
1196 		 *
1197 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1198 		 *
1199 		 * Use dates instead of versions to match as HP is
1200 		 * apparently recycling both product and version
1201 		 * strings.
1202 		 *
1203 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1204 		 */
1205 		{
1206 			.ident = "dv4",
1207 			.matches = {
1208 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1209 				DMI_MATCH(DMI_PRODUCT_NAME,
1210 					  "HP Pavilion dv4 Notebook PC"),
1211 			},
1212 			.driver_data = "20090105",	/* F.30 */
1213 		},
1214 		{
1215 			.ident = "dv5",
1216 			.matches = {
1217 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1218 				DMI_MATCH(DMI_PRODUCT_NAME,
1219 					  "HP Pavilion dv5 Notebook PC"),
1220 			},
1221 			.driver_data = "20090506",	/* F.16 */
1222 		},
1223 		{
1224 			.ident = "dv6",
1225 			.matches = {
1226 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1227 				DMI_MATCH(DMI_PRODUCT_NAME,
1228 					  "HP Pavilion dv6 Notebook PC"),
1229 			},
1230 			.driver_data = "20090423",	/* F.21 */
1231 		},
1232 		{
1233 			.ident = "HDX18",
1234 			.matches = {
1235 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1236 				DMI_MATCH(DMI_PRODUCT_NAME,
1237 					  "HP HDX18 Notebook PC"),
1238 			},
1239 			.driver_data = "20090430",	/* F.23 */
1240 		},
1241 		/*
1242 		 * Acer eMachines G725 has the same problem.  BIOS
1243 		 * V1.03 is known to be broken.  V3.04 is known to
1244 		 * work.  Between, there are V1.06, V2.06 and V3.03
1245 		 * that we don't have much idea about.  For now,
1246 		 * blacklist anything older than V3.04.
1247 		 *
1248 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1249 		 */
1250 		{
1251 			.ident = "G725",
1252 			.matches = {
1253 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1254 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1255 			},
1256 			.driver_data = "20091216",	/* V3.04 */
1257 		},
1258 		{ }	/* terminate list */
1259 	};
1260 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1261 	int year, month, date;
1262 	char buf[9];
1263 
1264 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1265 		return false;
1266 
1267 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1268 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1269 
1270 	return strcmp(buf, dmi->driver_data) < 0;
1271 }
1272 
1273 static bool ahci_broken_lpm(struct pci_dev *pdev)
1274 {
1275 	static const struct dmi_system_id sysids[] = {
1276 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1277 		{
1278 			.matches = {
1279 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1280 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1281 			},
1282 			.driver_data = "20180406", /* 1.31 */
1283 		},
1284 		{
1285 			.matches = {
1286 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1287 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1288 			},
1289 			.driver_data = "20180420", /* 1.28 */
1290 		},
1291 		{
1292 			.matches = {
1293 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1294 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1295 			},
1296 			.driver_data = "20180315", /* 1.33 */
1297 		},
1298 		{
1299 			.matches = {
1300 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1301 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1302 			},
1303 			/*
1304 			 * Note date based on release notes, 2.35 has been
1305 			 * reported to be good, but I've been unable to get
1306 			 * a hold of the reporter to get the DMI BIOS date.
1307 			 * TODO: fix this.
1308 			 */
1309 			.driver_data = "20180310", /* 2.35 */
1310 		},
1311 		{ }	/* terminate list */
1312 	};
1313 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1314 	int year, month, date;
1315 	char buf[9];
1316 
1317 	if (!dmi)
1318 		return false;
1319 
1320 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1321 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1322 
1323 	return strcmp(buf, dmi->driver_data) < 0;
1324 }
1325 
1326 static bool ahci_broken_online(struct pci_dev *pdev)
1327 {
1328 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1329 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1330 	static const struct dmi_system_id sysids[] = {
1331 		/*
1332 		 * There are several gigabyte boards which use
1333 		 * SIMG5723s configured as hardware RAID.  Certain
1334 		 * 5723 firmware revisions shipped there keep the link
1335 		 * online but fail to answer properly to SRST or
1336 		 * IDENTIFY when no device is attached downstream
1337 		 * causing libata to retry quite a few times leading
1338 		 * to excessive detection delay.
1339 		 *
1340 		 * As these firmwares respond to the second reset try
1341 		 * with invalid device signature, considering unknown
1342 		 * sig as offline works around the problem acceptably.
1343 		 */
1344 		{
1345 			.ident = "EP45-DQ6",
1346 			.matches = {
1347 				DMI_MATCH(DMI_BOARD_VENDOR,
1348 					  "Gigabyte Technology Co., Ltd."),
1349 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1350 			},
1351 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1352 		},
1353 		{
1354 			.ident = "EP45-DS5",
1355 			.matches = {
1356 				DMI_MATCH(DMI_BOARD_VENDOR,
1357 					  "Gigabyte Technology Co., Ltd."),
1358 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1359 			},
1360 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1361 		},
1362 		{ }	/* terminate list */
1363 	};
1364 #undef ENCODE_BUSDEVFN
1365 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1366 	unsigned int val;
1367 
1368 	if (!dmi)
1369 		return false;
1370 
1371 	val = (unsigned long)dmi->driver_data;
1372 
1373 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1374 }
1375 
1376 static bool ahci_broken_devslp(struct pci_dev *pdev)
1377 {
1378 	/* device with broken DEVSLP but still showing SDS capability */
1379 	static const struct pci_device_id ids[] = {
1380 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1381 		{}
1382 	};
1383 
1384 	return pci_match_id(ids, pdev);
1385 }
1386 
1387 #ifdef CONFIG_ATA_ACPI
1388 static void ahci_gtf_filter_workaround(struct ata_host *host)
1389 {
1390 	static const struct dmi_system_id sysids[] = {
1391 		/*
1392 		 * Aspire 3810T issues a bunch of SATA enable commands
1393 		 * via _GTF including an invalid one and one which is
1394 		 * rejected by the device.  Among the successful ones
1395 		 * is FPDMA non-zero offset enable which when enabled
1396 		 * only on the drive side leads to NCQ command
1397 		 * failures.  Filter it out.
1398 		 */
1399 		{
1400 			.ident = "Aspire 3810T",
1401 			.matches = {
1402 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1403 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1404 			},
1405 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1406 		},
1407 		{ }
1408 	};
1409 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1410 	unsigned int filter;
1411 	int i;
1412 
1413 	if (!dmi)
1414 		return;
1415 
1416 	filter = (unsigned long)dmi->driver_data;
1417 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1418 		 filter, dmi->ident);
1419 
1420 	for (i = 0; i < host->n_ports; i++) {
1421 		struct ata_port *ap = host->ports[i];
1422 		struct ata_link *link;
1423 		struct ata_device *dev;
1424 
1425 		ata_for_each_link(link, ap, EDGE)
1426 			ata_for_each_dev(dev, link, ALL)
1427 				dev->gtf_filter |= filter;
1428 	}
1429 }
1430 #else
1431 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1432 {}
1433 #endif
1434 
1435 /*
1436  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1437  * as DUMMY, or detected but eventually get a "link down" and never get up
1438  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1439  * port_map may hold a value of 0x00.
1440  *
1441  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1442  * and can significantly reduce the occurrence of the problem.
1443  *
1444  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1445  */
1446 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1447 				    struct pci_dev *pdev)
1448 {
1449 	static const struct dmi_system_id sysids[] = {
1450 		{
1451 			.ident = "Acer Switch Alpha 12",
1452 			.matches = {
1453 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1454 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1455 			},
1456 		},
1457 		{ }
1458 	};
1459 
1460 	if (dmi_check_system(sysids)) {
1461 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1462 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1463 			hpriv->port_map = 0x7;
1464 			hpriv->cap = 0xC734FF02;
1465 		}
1466 	}
1467 }
1468 
1469 #ifdef CONFIG_ARM64
1470 /*
1471  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1472  * Workaround is to make sure all pending IRQs are served before leaving
1473  * handler.
1474  */
1475 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1476 {
1477 	struct ata_host *host = dev_instance;
1478 	struct ahci_host_priv *hpriv;
1479 	unsigned int rc = 0;
1480 	void __iomem *mmio;
1481 	u32 irq_stat, irq_masked;
1482 	unsigned int handled = 1;
1483 
1484 	hpriv = host->private_data;
1485 	mmio = hpriv->mmio;
1486 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1487 	if (!irq_stat)
1488 		return IRQ_NONE;
1489 
1490 	do {
1491 		irq_masked = irq_stat & hpriv->port_map;
1492 		spin_lock(&host->lock);
1493 		rc = ahci_handle_port_intr(host, irq_masked);
1494 		if (!rc)
1495 			handled = 0;
1496 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1497 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1498 		spin_unlock(&host->lock);
1499 	} while (irq_stat);
1500 
1501 	return IRQ_RETVAL(handled);
1502 }
1503 #endif
1504 
1505 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1506 		struct ahci_host_priv *hpriv)
1507 {
1508 	int i;
1509 	u32 cap;
1510 
1511 	/*
1512 	 * Check if this device might have remapped nvme devices.
1513 	 */
1514 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1515 	    pci_resource_len(pdev, bar) < SZ_512K ||
1516 	    bar != AHCI_PCI_BAR_STANDARD ||
1517 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1518 		return;
1519 
1520 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1521 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1522 		if ((cap & (1 << i)) == 0)
1523 			continue;
1524 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1525 				!= PCI_CLASS_STORAGE_EXPRESS)
1526 			continue;
1527 
1528 		/* We've found a remapped device */
1529 		hpriv->remapped_nvme++;
1530 	}
1531 
1532 	if (!hpriv->remapped_nvme)
1533 		return;
1534 
1535 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1536 		 hpriv->remapped_nvme);
1537 	dev_warn(&pdev->dev,
1538 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1539 
1540 	/*
1541 	 * Don't rely on the msi-x capability in the remap case,
1542 	 * share the legacy interrupt across ahci and remapped devices.
1543 	 */
1544 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1545 }
1546 
1547 static int ahci_get_irq_vector(struct ata_host *host, int port)
1548 {
1549 	return pci_irq_vector(to_pci_dev(host->dev), port);
1550 }
1551 
1552 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1553 			struct ahci_host_priv *hpriv)
1554 {
1555 	int nvec;
1556 
1557 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1558 		return -ENODEV;
1559 
1560 	/*
1561 	 * If number of MSIs is less than number of ports then Sharing Last
1562 	 * Message mode could be enforced. In this case assume that advantage
1563 	 * of multipe MSIs is negated and use single MSI mode instead.
1564 	 */
1565 	if (n_ports > 1) {
1566 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1567 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1568 		if (nvec > 0) {
1569 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1570 				hpriv->get_irq_vector = ahci_get_irq_vector;
1571 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1572 				return nvec;
1573 			}
1574 
1575 			/*
1576 			 * Fallback to single MSI mode if the controller
1577 			 * enforced MRSM mode.
1578 			 */
1579 			printk(KERN_INFO
1580 				"ahci: MRSM is on, fallback to single MSI\n");
1581 			pci_free_irq_vectors(pdev);
1582 		}
1583 	}
1584 
1585 	/*
1586 	 * If the host is not capable of supporting per-port vectors, fall
1587 	 * back to single MSI before finally attempting single MSI-X.
1588 	 */
1589 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1590 	if (nvec == 1)
1591 		return nvec;
1592 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1593 }
1594 
1595 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1596 					   struct ahci_host_priv *hpriv)
1597 {
1598 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1599 
1600 
1601 	/* Ignore processing for chipsets that don't use policy */
1602 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1603 		return;
1604 
1605 	/* user modified policy via module param */
1606 	if (mobile_lpm_policy != -1) {
1607 		policy = mobile_lpm_policy;
1608 		goto update_policy;
1609 	}
1610 
1611 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1612 		if (hpriv->cap & HOST_CAP_PART)
1613 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1614 		else if (hpriv->cap & HOST_CAP_SSC)
1615 			policy = ATA_LPM_MIN_POWER;
1616 	}
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