xref: /openbmc/linux/drivers/ata/ahci.c (revision 8c018386)
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_43bit_dma,
52 	board_ahci_ign_iferr,
53 	board_ahci_low_power,
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 void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv);
88 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
89 				 unsigned long deadline);
90 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
91 			      unsigned long deadline);
92 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
93 static bool is_mcp89_apple(struct pci_dev *pdev);
94 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
95 				unsigned long deadline);
96 #ifdef CONFIG_PM
97 static int ahci_pci_device_runtime_suspend(struct device *dev);
98 static int ahci_pci_device_runtime_resume(struct device *dev);
99 #ifdef CONFIG_PM_SLEEP
100 static int ahci_pci_device_suspend(struct device *dev);
101 static int ahci_pci_device_resume(struct device *dev);
102 #endif
103 #endif /* CONFIG_PM */
104 
105 static const struct scsi_host_template ahci_sht = {
106 	AHCI_SHT("ahci"),
107 };
108 
109 static struct ata_port_operations ahci_vt8251_ops = {
110 	.inherits		= &ahci_ops,
111 	.hardreset		= ahci_vt8251_hardreset,
112 };
113 
114 static struct ata_port_operations ahci_p5wdh_ops = {
115 	.inherits		= &ahci_ops,
116 	.hardreset		= ahci_p5wdh_hardreset,
117 };
118 
119 static struct ata_port_operations ahci_avn_ops = {
120 	.inherits		= &ahci_ops,
121 	.hardreset		= ahci_avn_hardreset,
122 };
123 
124 static const struct ata_port_info ahci_port_info[] = {
125 	/* by features */
126 	[board_ahci] = {
127 		.flags		= AHCI_FLAG_COMMON,
128 		.pio_mask	= ATA_PIO4,
129 		.udma_mask	= ATA_UDMA6,
130 		.port_ops	= &ahci_ops,
131 	},
132 	[board_ahci_43bit_dma] = {
133 		AHCI_HFLAGS	(AHCI_HFLAG_43BIT_ONLY),
134 		.flags		= AHCI_FLAG_COMMON,
135 		.pio_mask	= ATA_PIO4,
136 		.udma_mask	= ATA_UDMA6,
137 		.port_ops	= &ahci_ops,
138 	},
139 	[board_ahci_ign_iferr] = {
140 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
141 		.flags		= AHCI_FLAG_COMMON,
142 		.pio_mask	= ATA_PIO4,
143 		.udma_mask	= ATA_UDMA6,
144 		.port_ops	= &ahci_ops,
145 	},
146 	[board_ahci_low_power] = {
147 		AHCI_HFLAGS	(AHCI_HFLAG_USE_LPM_POLICY),
148 		.flags		= AHCI_FLAG_COMMON,
149 		.pio_mask	= ATA_PIO4,
150 		.udma_mask	= ATA_UDMA6,
151 		.port_ops	= &ahci_ops,
152 	},
153 	[board_ahci_no_debounce_delay] = {
154 		.flags		= AHCI_FLAG_COMMON,
155 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
156 		.pio_mask	= ATA_PIO4,
157 		.udma_mask	= ATA_UDMA6,
158 		.port_ops	= &ahci_ops,
159 	},
160 	[board_ahci_nomsi] = {
161 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
162 		.flags		= AHCI_FLAG_COMMON,
163 		.pio_mask	= ATA_PIO4,
164 		.udma_mask	= ATA_UDMA6,
165 		.port_ops	= &ahci_ops,
166 	},
167 	[board_ahci_noncq] = {
168 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
169 		.flags		= AHCI_FLAG_COMMON,
170 		.pio_mask	= ATA_PIO4,
171 		.udma_mask	= ATA_UDMA6,
172 		.port_ops	= &ahci_ops,
173 	},
174 	[board_ahci_nosntf] = {
175 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
176 		.flags		= AHCI_FLAG_COMMON,
177 		.pio_mask	= ATA_PIO4,
178 		.udma_mask	= ATA_UDMA6,
179 		.port_ops	= &ahci_ops,
180 	},
181 	[board_ahci_yes_fbs] = {
182 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
183 		.flags		= AHCI_FLAG_COMMON,
184 		.pio_mask	= ATA_PIO4,
185 		.udma_mask	= ATA_UDMA6,
186 		.port_ops	= &ahci_ops,
187 	},
188 	/* by chipsets */
189 	[board_ahci_al] = {
190 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
191 		.flags		= AHCI_FLAG_COMMON,
192 		.pio_mask	= ATA_PIO4,
193 		.udma_mask	= ATA_UDMA6,
194 		.port_ops	= &ahci_ops,
195 	},
196 	[board_ahci_avn] = {
197 		.flags		= AHCI_FLAG_COMMON,
198 		.pio_mask	= ATA_PIO4,
199 		.udma_mask	= ATA_UDMA6,
200 		.port_ops	= &ahci_avn_ops,
201 	},
202 	[board_ahci_mcp65] = {
203 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
204 				 AHCI_HFLAG_YES_NCQ),
205 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
206 		.pio_mask	= ATA_PIO4,
207 		.udma_mask	= ATA_UDMA6,
208 		.port_ops	= &ahci_ops,
209 	},
210 	[board_ahci_mcp77] = {
211 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
212 		.flags		= AHCI_FLAG_COMMON,
213 		.pio_mask	= ATA_PIO4,
214 		.udma_mask	= ATA_UDMA6,
215 		.port_ops	= &ahci_ops,
216 	},
217 	[board_ahci_mcp89] = {
218 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
219 		.flags		= AHCI_FLAG_COMMON,
220 		.pio_mask	= ATA_PIO4,
221 		.udma_mask	= ATA_UDMA6,
222 		.port_ops	= &ahci_ops,
223 	},
224 	[board_ahci_mv] = {
225 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
226 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
227 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
228 		.pio_mask	= ATA_PIO4,
229 		.udma_mask	= ATA_UDMA6,
230 		.port_ops	= &ahci_ops,
231 	},
232 	[board_ahci_sb600] = {
233 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
234 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
235 				 AHCI_HFLAG_32BIT_ONLY),
236 		.flags		= AHCI_FLAG_COMMON,
237 		.pio_mask	= ATA_PIO4,
238 		.udma_mask	= ATA_UDMA6,
239 		.port_ops	= &ahci_pmp_retry_srst_ops,
240 	},
241 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
242 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
243 		.flags		= AHCI_FLAG_COMMON,
244 		.pio_mask	= ATA_PIO4,
245 		.udma_mask	= ATA_UDMA6,
246 		.port_ops	= &ahci_pmp_retry_srst_ops,
247 	},
248 	[board_ahci_vt8251] = {
249 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
250 		.flags		= AHCI_FLAG_COMMON,
251 		.pio_mask	= ATA_PIO4,
252 		.udma_mask	= ATA_UDMA6,
253 		.port_ops	= &ahci_vt8251_ops,
254 	},
255 	[board_ahci_pcs7] = {
256 		.flags		= AHCI_FLAG_COMMON,
257 		.pio_mask	= ATA_PIO4,
258 		.udma_mask	= ATA_UDMA6,
259 		.port_ops	= &ahci_ops,
260 	},
261 };
262 
263 static const struct pci_device_id ahci_pci_tbl[] = {
264 	/* Intel */
265 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
266 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
267 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
268 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
269 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
270 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
271 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
272 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
273 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
274 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
275 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
276 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
277 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8/Lewisburg RAID*/
278 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
279 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
280 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
281 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
282 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
283 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
284 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
285 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
286 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_low_power }, /* ICH9M */
287 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_low_power }, /* ICH9M */
288 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_low_power }, /* ICH9M */
289 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_low_power }, /* ICH9M */
290 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_low_power }, /* ICH9M */
291 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
292 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_low_power }, /* ICH9M */
293 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
294 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
295 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
296 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
297 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
298 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
301 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
302 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_low_power }, /* PCH M AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
304 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_low_power }, /* PCH M RAID */
305 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
320 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
321 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
322 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
323 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
324 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
325 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
326 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
327 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_low_power }, /* CPT M AHCI */
328 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
329 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_low_power }, /* CPT M RAID */
330 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
331 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
333 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
334 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
335 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
336 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_low_power }, /* Panther M AHCI */
338 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
339 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
340 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
341 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_low_power }, /* Panther M RAID */
342 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
343 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
344 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_low_power }, /* Lynx M AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
346 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_low_power }, /* Lynx M RAID */
347 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
348 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_low_power }, /* Lynx M RAID */
349 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
350 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_low_power }, /* Lynx M RAID */
351 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_low_power }, /* Lynx LP AHCI */
352 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_low_power }, /* Lynx LP AHCI */
353 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_low_power }, /* Lynx LP RAID */
354 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_low_power }, /* Lynx LP RAID */
355 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_low_power }, /* Lynx LP RAID */
356 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_low_power }, /* Lynx LP RAID */
357 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_low_power }, /* Lynx LP RAID */
358 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_low_power }, /* Lynx LP RAID */
359 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_low_power }, /* Cannon Lake PCH-LP AHCI */
360 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
361 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
362 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
363 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
367 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
368 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
369 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
370 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
371 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
372 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
373 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
374 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
375 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
376 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
377 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* *burg SATA0 'RAID' */
378 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* *burg SATA1 'RAID' */
379 	{ PCI_VDEVICE(INTEL, 0x282f), board_ahci }, /* *burg SATA2 'RAID' */
380 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
381 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
382 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
383 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
384 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
386 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
387 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
388 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
390 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
391 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
392 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
393 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_low_power }, /* Wildcat LP AHCI */
394 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_low_power }, /* Wildcat LP RAID */
395 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_low_power }, /* Wildcat LP RAID */
396 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_low_power }, /* Wildcat LP RAID */
397 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
398 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_low_power }, /* 9 Series M AHCI */
399 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
400 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_low_power }, /* 9 Series M RAID */
401 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
402 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_low_power }, /* 9 Series M RAID */
403 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
404 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_low_power }, /* 9 Series M RAID */
405 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_low_power }, /* Sunrise LP AHCI */
406 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_low_power }, /* Sunrise LP RAID */
407 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_low_power }, /* Sunrise LP RAID */
408 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
409 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_low_power }, /* Sunrise M AHCI */
410 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
411 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
412 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_low_power }, /* Sunrise M RAID */
413 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
414 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
415 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
416 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
417 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
418 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
419 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
420 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
421 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
422 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
423 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
424 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
425 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_low_power }, /* Bay Trail AHCI */
426 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_low_power }, /* Bay Trail AHCI */
427 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_low_power }, /* Cherry Tr. AHCI */
428 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_low_power }, /* ApolloLake AHCI */
429 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_low_power }, /* Ice Lake LP AHCI */
430 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_low_power }, /* Comet Lake PCH-U AHCI */
431 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* Comet Lake PCH RAID */
432 	/* Elkhart Lake IDs 0x4b60 & 0x4b62 https://sata-io.org/product/8803 not tested yet */
433 	{ PCI_VDEVICE(INTEL, 0x4b63), board_ahci_low_power }, /* Elkhart Lake AHCI */
434 
435 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
436 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
437 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
438 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
439 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
440 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
441 	/* May need to update quirk_jmicron_async_suspend() for additions */
442 
443 	/* ATI */
444 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
445 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
446 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
447 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
448 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
449 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
450 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
451 
452 	/* Amazon's Annapurna Labs support */
453 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
454 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
455 		.class_mask = 0xffffff,
456 		board_ahci_al },
457 	/* AMD */
458 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
459 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
460 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
461 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_low_power }, /* AMD Green Sardine */
462 	/* AMD is using RAID class only for ahci controllers */
463 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
464 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
465 
466 	/* Dell S140/S150 */
467 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
468 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
469 
470 	/* VIA */
471 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
472 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
473 
474 	/* NVIDIA */
475 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
476 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
477 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
478 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
479 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
480 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
481 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
482 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
483 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
486 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
487 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
488 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
489 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
490 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
491 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
492 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
493 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
494 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
495 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
502 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
503 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
504 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
505 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
506 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
507 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
508 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
509 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
510 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
511 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
514 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
515 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
516 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
517 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
518 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
519 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
520 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
521 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
522 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
549 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
550 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
551 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
552 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
553 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
554 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
555 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
556 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
557 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
558 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
559 
560 	/* SiS */
561 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
562 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
563 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
564 
565 	/* ST Microelectronics */
566 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
567 
568 	/* Marvell */
569 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
570 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
571 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
572 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
573 	  .class_mask = 0xffffff,
574 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
575 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
576 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
577 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
578 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
579 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
580 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
581 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
582 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
583 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
584 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
585 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
586 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
587 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
588 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
589 	  .driver_data = board_ahci_yes_fbs },
590 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
591 	  .driver_data = board_ahci_yes_fbs },
592 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
593 	  .driver_data = board_ahci_yes_fbs },
594 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
595 	  .driver_data = board_ahci_yes_fbs },
596 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
597 	  .driver_data = board_ahci_no_debounce_delay },
598 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
599 	  .driver_data = board_ahci_yes_fbs },
600 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
601 	  .driver_data = board_ahci_yes_fbs },
602 
603 	/* Promise */
604 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
605 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
606 
607 	/* ASMedia */
608 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci_43bit_dma },	/* ASM1060 */
609 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci_43bit_dma },	/* ASM1060 */
610 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci_43bit_dma },	/* ASM1061 */
611 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci_43bit_dma },	/* ASM1061/1062 */
612 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci_43bit_dma },	/* ASM1061R */
613 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci_43bit_dma },	/* ASM1062R */
614 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci_43bit_dma },	/* ASM1062+JMB575 */
615 	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
616 	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
617 	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
618 	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
619 	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
620 
621 	/*
622 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
623 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
624 	 */
625 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
626 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
627 
628 	/* Enmotus */
629 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
630 
631 	/* Loongson */
632 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
633 
634 	/* Generic, PCI class code for AHCI */
635 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
636 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
637 
638 	{ }	/* terminate list */
639 };
640 
641 static const struct dev_pm_ops ahci_pci_pm_ops = {
642 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
643 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
644 			   ahci_pci_device_runtime_resume, NULL)
645 };
646 
647 static struct pci_driver ahci_pci_driver = {
648 	.name			= DRV_NAME,
649 	.id_table		= ahci_pci_tbl,
650 	.probe			= ahci_init_one,
651 	.remove			= ahci_remove_one,
652 	.shutdown		= ahci_shutdown_one,
653 	.driver = {
654 		.pm		= &ahci_pci_pm_ops,
655 	},
656 };
657 
658 #if IS_ENABLED(CONFIG_PATA_MARVELL)
659 static int marvell_enable;
660 #else
661 static int marvell_enable = 1;
662 #endif
663 module_param(marvell_enable, int, 0644);
664 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
665 
666 static int mobile_lpm_policy = -1;
667 module_param(mobile_lpm_policy, int, 0644);
668 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
669 
670 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
671 					 struct ahci_host_priv *hpriv)
672 {
673 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == 0x1166) {
674 		dev_info(&pdev->dev, "ASM1166 has only six ports\n");
675 		hpriv->saved_port_map = 0x3f;
676 	}
677 
678 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
679 		dev_info(&pdev->dev, "JMB361 has only one port\n");
680 		hpriv->saved_port_map = 1;
681 	}
682 
683 	/*
684 	 * Temporary Marvell 6145 hack: PATA port presence
685 	 * is asserted through the standard AHCI port
686 	 * presence register, as bit 4 (counting from 0)
687 	 */
688 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
689 		if (pdev->device == 0x6121)
690 			hpriv->mask_port_map = 0x3;
691 		else
692 			hpriv->mask_port_map = 0xf;
693 		dev_info(&pdev->dev,
694 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
695 	}
696 
697 	ahci_save_initial_config(&pdev->dev, hpriv);
698 }
699 
700 static int ahci_pci_reset_controller(struct ata_host *host)
701 {
702 	struct pci_dev *pdev = to_pci_dev(host->dev);
703 	struct ahci_host_priv *hpriv = host->private_data;
704 	int rc;
705 
706 	rc = ahci_reset_controller(host);
707 	if (rc)
708 		return rc;
709 
710 	/*
711 	 * If platform firmware failed to enable ports, try to enable
712 	 * them here.
713 	 */
714 	ahci_intel_pcs_quirk(pdev, hpriv);
715 
716 	return 0;
717 }
718 
719 static void ahci_pci_init_controller(struct ata_host *host)
720 {
721 	struct ahci_host_priv *hpriv = host->private_data;
722 	struct pci_dev *pdev = to_pci_dev(host->dev);
723 	void __iomem *port_mmio;
724 	u32 tmp;
725 	int mv;
726 
727 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
728 		if (pdev->device == 0x6121)
729 			mv = 2;
730 		else
731 			mv = 4;
732 		port_mmio = __ahci_port_base(hpriv, mv);
733 
734 		writel(0, port_mmio + PORT_IRQ_MASK);
735 
736 		/* clear port IRQ */
737 		tmp = readl(port_mmio + PORT_IRQ_STAT);
738 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
739 		if (tmp)
740 			writel(tmp, port_mmio + PORT_IRQ_STAT);
741 	}
742 
743 	ahci_init_controller(host);
744 }
745 
746 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
747 				 unsigned long deadline)
748 {
749 	struct ata_port *ap = link->ap;
750 	struct ahci_host_priv *hpriv = ap->host->private_data;
751 	bool online;
752 	int rc;
753 
754 	hpriv->stop_engine(ap);
755 
756 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
757 				 deadline, &online, NULL);
758 
759 	hpriv->start_engine(ap);
760 
761 	/* vt8251 doesn't clear BSY on signature FIS reception,
762 	 * request follow-up softreset.
763 	 */
764 	return online ? -EAGAIN : rc;
765 }
766 
767 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
768 				unsigned long deadline)
769 {
770 	struct ata_port *ap = link->ap;
771 	struct ahci_port_priv *pp = ap->private_data;
772 	struct ahci_host_priv *hpriv = ap->host->private_data;
773 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
774 	struct ata_taskfile tf;
775 	bool online;
776 	int rc;
777 
778 	hpriv->stop_engine(ap);
779 
780 	/* clear D2H reception area to properly wait for D2H FIS */
781 	ata_tf_init(link->device, &tf);
782 	tf.status = ATA_BUSY;
783 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
784 
785 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
786 				 deadline, &online, NULL);
787 
788 	hpriv->start_engine(ap);
789 
790 	/* The pseudo configuration device on SIMG4726 attached to
791 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
792 	 * hardreset if no device is attached to the first downstream
793 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
794 	 * work around this, wait for !BSY only briefly.  If BSY isn't
795 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
796 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
797 	 *
798 	 * Wait for two seconds.  Devices attached to downstream port
799 	 * which can't process the following IDENTIFY after this will
800 	 * have to be reset again.  For most cases, this should
801 	 * suffice while making probing snappish enough.
802 	 */
803 	if (online) {
804 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
805 					  ahci_check_ready);
806 		if (rc)
807 			ahci_kick_engine(ap);
808 	}
809 	return rc;
810 }
811 
812 /*
813  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
814  *
815  * It has been observed with some SSDs that the timing of events in the
816  * link synchronization phase can leave the port in a state that can not
817  * be recovered by a SATA-hard-reset alone.  The failing signature is
818  * SStatus.DET stuck at 1 ("Device presence detected but Phy
819  * communication not established").  It was found that unloading and
820  * reloading the driver when this problem occurs allows the drive
821  * connection to be recovered (DET advanced to 0x3).  The critical
822  * component of reloading the driver is that the port state machines are
823  * reset by bouncing "port enable" in the AHCI PCS configuration
824  * register.  So, reproduce that effect by bouncing a port whenever we
825  * see DET==1 after a reset.
826  */
827 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
828 			      unsigned long deadline)
829 {
830 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
831 	struct ata_port *ap = link->ap;
832 	struct ahci_port_priv *pp = ap->private_data;
833 	struct ahci_host_priv *hpriv = ap->host->private_data;
834 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
835 	unsigned long tmo = deadline - jiffies;
836 	struct ata_taskfile tf;
837 	bool online;
838 	int rc, i;
839 
840 	hpriv->stop_engine(ap);
841 
842 	for (i = 0; i < 2; i++) {
843 		u16 val;
844 		u32 sstatus;
845 		int port = ap->port_no;
846 		struct ata_host *host = ap->host;
847 		struct pci_dev *pdev = to_pci_dev(host->dev);
848 
849 		/* clear D2H reception area to properly wait for D2H FIS */
850 		ata_tf_init(link->device, &tf);
851 		tf.status = ATA_BUSY;
852 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
853 
854 		rc = sata_link_hardreset(link, timing, deadline, &online,
855 				ahci_check_ready);
856 
857 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
858 				(sstatus & 0xf) != 1)
859 			break;
860 
861 		ata_link_info(link,  "avn bounce port%d\n", port);
862 
863 		pci_read_config_word(pdev, 0x92, &val);
864 		val &= ~(1 << port);
865 		pci_write_config_word(pdev, 0x92, val);
866 		ata_msleep(ap, 1000);
867 		val |= 1 << port;
868 		pci_write_config_word(pdev, 0x92, val);
869 		deadline += tmo;
870 	}
871 
872 	hpriv->start_engine(ap);
873 
874 	if (online)
875 		*class = ahci_dev_classify(ap);
876 
877 	return rc;
878 }
879 
880 
881 #ifdef CONFIG_PM
882 static void ahci_pci_disable_interrupts(struct ata_host *host)
883 {
884 	struct ahci_host_priv *hpriv = host->private_data;
885 	void __iomem *mmio = hpriv->mmio;
886 	u32 ctl;
887 
888 	/* AHCI spec rev1.1 section 8.3.3:
889 	 * Software must disable interrupts prior to requesting a
890 	 * transition of the HBA to D3 state.
891 	 */
892 	ctl = readl(mmio + HOST_CTL);
893 	ctl &= ~HOST_IRQ_EN;
894 	writel(ctl, mmio + HOST_CTL);
895 	readl(mmio + HOST_CTL); /* flush */
896 }
897 
898 static int ahci_pci_device_runtime_suspend(struct device *dev)
899 {
900 	struct pci_dev *pdev = to_pci_dev(dev);
901 	struct ata_host *host = pci_get_drvdata(pdev);
902 
903 	ahci_pci_disable_interrupts(host);
904 	return 0;
905 }
906 
907 static int ahci_pci_device_runtime_resume(struct device *dev)
908 {
909 	struct pci_dev *pdev = to_pci_dev(dev);
910 	struct ata_host *host = pci_get_drvdata(pdev);
911 	int rc;
912 
913 	rc = ahci_pci_reset_controller(host);
914 	if (rc)
915 		return rc;
916 	ahci_pci_init_controller(host);
917 	return 0;
918 }
919 
920 #ifdef CONFIG_PM_SLEEP
921 static int ahci_pci_device_suspend(struct device *dev)
922 {
923 	struct pci_dev *pdev = to_pci_dev(dev);
924 	struct ata_host *host = pci_get_drvdata(pdev);
925 	struct ahci_host_priv *hpriv = host->private_data;
926 
927 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
928 		dev_err(&pdev->dev,
929 			"BIOS update required for suspend/resume\n");
930 		return -EIO;
931 	}
932 
933 	ahci_pci_disable_interrupts(host);
934 	ata_host_suspend(host, PMSG_SUSPEND);
935 	return 0;
936 }
937 
938 static int ahci_pci_device_resume(struct device *dev)
939 {
940 	struct pci_dev *pdev = to_pci_dev(dev);
941 	struct ata_host *host = pci_get_drvdata(pdev);
942 	int rc;
943 
944 	/* Apple BIOS helpfully mangles the registers on resume */
945 	if (is_mcp89_apple(pdev))
946 		ahci_mcp89_apple_enable(pdev);
947 
948 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
949 		rc = ahci_pci_reset_controller(host);
950 		if (rc)
951 			return rc;
952 
953 		ahci_pci_init_controller(host);
954 	}
955 
956 	ata_host_resume(host);
957 
958 	return 0;
959 }
960 #endif
961 
962 #endif /* CONFIG_PM */
963 
964 static int ahci_configure_dma_masks(struct pci_dev *pdev,
965 				    struct ahci_host_priv *hpriv)
966 {
967 	int dma_bits;
968 	int rc;
969 
970 	if (hpriv->cap & HOST_CAP_64) {
971 		dma_bits = 64;
972 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
973 			dma_bits = 43;
974 	} else {
975 		dma_bits = 32;
976 	}
977 
978 	/*
979 	 * If the device fixup already set the dma_mask to some non-standard
980 	 * value, don't extend it here. This happens on STA2X11, for example.
981 	 *
982 	 * XXX: manipulating the DMA mask from platform code is completely
983 	 * bogus, platform code should use dev->bus_dma_limit instead..
984 	 */
985 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
986 		return 0;
987 
988 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
989 	if (rc)
990 		dev_err(&pdev->dev, "DMA enable failed\n");
991 	return rc;
992 }
993 
994 static void ahci_pci_print_info(struct ata_host *host)
995 {
996 	struct pci_dev *pdev = to_pci_dev(host->dev);
997 	u16 cc;
998 	const char *scc_s;
999 
1000 	pci_read_config_word(pdev, 0x0a, &cc);
1001 	if (cc == PCI_CLASS_STORAGE_IDE)
1002 		scc_s = "IDE";
1003 	else if (cc == PCI_CLASS_STORAGE_SATA)
1004 		scc_s = "SATA";
1005 	else if (cc == PCI_CLASS_STORAGE_RAID)
1006 		scc_s = "RAID";
1007 	else
1008 		scc_s = "unknown";
1009 
1010 	ahci_print_info(host, scc_s);
1011 }
1012 
1013 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1014  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1015  * support PMP and the 4726 either directly exports the device
1016  * attached to the first downstream port or acts as a hardware storage
1017  * controller and emulate a single ATA device (can be RAID 0/1 or some
1018  * other configuration).
1019  *
1020  * When there's no device attached to the first downstream port of the
1021  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1022  * configure the 4726.  However, ATA emulation of the device is very
1023  * lame.  It doesn't send signature D2H Reg FIS after the initial
1024  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1025  *
1026  * The following function works around the problem by always using
1027  * hardreset on the port and not depending on receiving signature FIS
1028  * afterward.  If signature FIS isn't received soon, ATA class is
1029  * assumed without follow-up softreset.
1030  */
1031 static void ahci_p5wdh_workaround(struct ata_host *host)
1032 {
1033 	static const struct dmi_system_id sysids[] = {
1034 		{
1035 			.ident = "P5W DH Deluxe",
1036 			.matches = {
1037 				DMI_MATCH(DMI_SYS_VENDOR,
1038 					  "ASUSTEK COMPUTER INC"),
1039 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1040 			},
1041 		},
1042 		{ }
1043 	};
1044 	struct pci_dev *pdev = to_pci_dev(host->dev);
1045 
1046 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1047 	    dmi_check_system(sysids)) {
1048 		struct ata_port *ap = host->ports[1];
1049 
1050 		dev_info(&pdev->dev,
1051 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1052 
1053 		ap->ops = &ahci_p5wdh_ops;
1054 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1055 	}
1056 }
1057 
1058 /*
1059  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1060  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1061  */
1062 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1063 {
1064 	u32 val;
1065 
1066 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1067 
1068 	pci_read_config_dword(pdev, 0xf8, &val);
1069 	val |= 1 << 0x1b;
1070 	/* the following changes the device ID, but appears not to affect function */
1071 	/* val = (val & ~0xf0000000) | 0x80000000; */
1072 	pci_write_config_dword(pdev, 0xf8, val);
1073 
1074 	pci_read_config_dword(pdev, 0x54c, &val);
1075 	val |= 1 << 0xc;
1076 	pci_write_config_dword(pdev, 0x54c, val);
1077 
1078 	pci_read_config_dword(pdev, 0x4a4, &val);
1079 	val &= 0xff;
1080 	val |= 0x01060100;
1081 	pci_write_config_dword(pdev, 0x4a4, val);
1082 
1083 	pci_read_config_dword(pdev, 0x54c, &val);
1084 	val &= ~(1 << 0xc);
1085 	pci_write_config_dword(pdev, 0x54c, val);
1086 
1087 	pci_read_config_dword(pdev, 0xf8, &val);
1088 	val &= ~(1 << 0x1b);
1089 	pci_write_config_dword(pdev, 0xf8, val);
1090 }
1091 
1092 static bool is_mcp89_apple(struct pci_dev *pdev)
1093 {
1094 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1095 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1096 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1097 		pdev->subsystem_device == 0xcb89;
1098 }
1099 
1100 /* only some SB600 ahci controllers can do 64bit DMA */
1101 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1102 {
1103 	static const struct dmi_system_id sysids[] = {
1104 		/*
1105 		 * The oldest version known to be broken is 0901 and
1106 		 * working is 1501 which was released on 2007-10-26.
1107 		 * Enable 64bit DMA on 1501 and anything newer.
1108 		 *
1109 		 * Please read bko#9412 for more info.
1110 		 */
1111 		{
1112 			.ident = "ASUS M2A-VM",
1113 			.matches = {
1114 				DMI_MATCH(DMI_BOARD_VENDOR,
1115 					  "ASUSTeK Computer INC."),
1116 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1117 			},
1118 			.driver_data = "20071026",	/* yyyymmdd */
1119 		},
1120 		/*
1121 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1122 		 * support 64bit DMA.
1123 		 *
1124 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1125 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1126 		 * This spelling mistake was fixed in BIOS version 1.5, so
1127 		 * 1.5 and later have the Manufacturer as
1128 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1129 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1130 		 *
1131 		 * BIOS versions earlier than 1.9 had a Board Product Name
1132 		 * DMI field of "MS-7376". This was changed to be
1133 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1134 		 * match on DMI_BOARD_NAME of "MS-7376".
1135 		 */
1136 		{
1137 			.ident = "MSI K9A2 Platinum",
1138 			.matches = {
1139 				DMI_MATCH(DMI_BOARD_VENDOR,
1140 					  "MICRO-STAR INTER"),
1141 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1142 			},
1143 		},
1144 		/*
1145 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1146 		 * 64bit DMA.
1147 		 *
1148 		 * This board also had the typo mentioned above in the
1149 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1150 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1151 		 */
1152 		{
1153 			.ident = "MSI K9AGM2",
1154 			.matches = {
1155 				DMI_MATCH(DMI_BOARD_VENDOR,
1156 					  "MICRO-STAR INTER"),
1157 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1158 			},
1159 		},
1160 		/*
1161 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1162 		 * (all release versions from 0301 to 1206 were tested)
1163 		 */
1164 		{
1165 			.ident = "ASUS M3A",
1166 			.matches = {
1167 				DMI_MATCH(DMI_BOARD_VENDOR,
1168 					  "ASUSTeK Computer INC."),
1169 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1170 			},
1171 		},
1172 		{ }
1173 	};
1174 	const struct dmi_system_id *match;
1175 	int year, month, date;
1176 	char buf[9];
1177 
1178 	match = dmi_first_match(sysids);
1179 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1180 	    !match)
1181 		return false;
1182 
1183 	if (!match->driver_data)
1184 		goto enable_64bit;
1185 
1186 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1187 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1188 
1189 	if (strcmp(buf, match->driver_data) >= 0)
1190 		goto enable_64bit;
1191 	else {
1192 		dev_warn(&pdev->dev,
1193 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1194 			 match->ident);
1195 		return false;
1196 	}
1197 
1198 enable_64bit:
1199 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1200 	return true;
1201 }
1202 
1203 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1204 {
1205 	static const struct dmi_system_id broken_systems[] = {
1206 		{
1207 			.ident = "HP Compaq nx6310",
1208 			.matches = {
1209 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1210 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1211 			},
1212 			/* PCI slot number of the controller */
1213 			.driver_data = (void *)0x1FUL,
1214 		},
1215 		{
1216 			.ident = "HP Compaq 6720s",
1217 			.matches = {
1218 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1219 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1220 			},
1221 			/* PCI slot number of the controller */
1222 			.driver_data = (void *)0x1FUL,
1223 		},
1224 
1225 		{ }	/* terminate list */
1226 	};
1227 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1228 
1229 	if (dmi) {
1230 		unsigned long slot = (unsigned long)dmi->driver_data;
1231 		/* apply the quirk only to on-board controllers */
1232 		return slot == PCI_SLOT(pdev->devfn);
1233 	}
1234 
1235 	return false;
1236 }
1237 
1238 static bool ahci_broken_suspend(struct pci_dev *pdev)
1239 {
1240 	static const struct dmi_system_id sysids[] = {
1241 		/*
1242 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1243 		 * to the harddisk doesn't become online after
1244 		 * resuming from STR.  Warn and fail suspend.
1245 		 *
1246 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1247 		 *
1248 		 * Use dates instead of versions to match as HP is
1249 		 * apparently recycling both product and version
1250 		 * strings.
1251 		 *
1252 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1253 		 */
1254 		{
1255 			.ident = "dv4",
1256 			.matches = {
1257 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1258 				DMI_MATCH(DMI_PRODUCT_NAME,
1259 					  "HP Pavilion dv4 Notebook PC"),
1260 			},
1261 			.driver_data = "20090105",	/* F.30 */
1262 		},
1263 		{
1264 			.ident = "dv5",
1265 			.matches = {
1266 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1267 				DMI_MATCH(DMI_PRODUCT_NAME,
1268 					  "HP Pavilion dv5 Notebook PC"),
1269 			},
1270 			.driver_data = "20090506",	/* F.16 */
1271 		},
1272 		{
1273 			.ident = "dv6",
1274 			.matches = {
1275 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1276 				DMI_MATCH(DMI_PRODUCT_NAME,
1277 					  "HP Pavilion dv6 Notebook PC"),
1278 			},
1279 			.driver_data = "20090423",	/* F.21 */
1280 		},
1281 		{
1282 			.ident = "HDX18",
1283 			.matches = {
1284 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1285 				DMI_MATCH(DMI_PRODUCT_NAME,
1286 					  "HP HDX18 Notebook PC"),
1287 			},
1288 			.driver_data = "20090430",	/* F.23 */
1289 		},
1290 		/*
1291 		 * Acer eMachines G725 has the same problem.  BIOS
1292 		 * V1.03 is known to be broken.  V3.04 is known to
1293 		 * work.  Between, there are V1.06, V2.06 and V3.03
1294 		 * that we don't have much idea about.  For now,
1295 		 * blacklist anything older than V3.04.
1296 		 *
1297 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1298 		 */
1299 		{
1300 			.ident = "G725",
1301 			.matches = {
1302 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1303 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1304 			},
1305 			.driver_data = "20091216",	/* V3.04 */
1306 		},
1307 		{ }	/* terminate list */
1308 	};
1309 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1310 	int year, month, date;
1311 	char buf[9];
1312 
1313 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1314 		return false;
1315 
1316 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1317 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1318 
1319 	return strcmp(buf, dmi->driver_data) < 0;
1320 }
1321 
1322 static bool ahci_broken_lpm(struct pci_dev *pdev)
1323 {
1324 	static const struct dmi_system_id sysids[] = {
1325 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1326 		{
1327 			.matches = {
1328 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1329 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1330 			},
1331 			.driver_data = "20180406", /* 1.31 */
1332 		},
1333 		{
1334 			.matches = {
1335 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1336 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1337 			},
1338 			.driver_data = "20180420", /* 1.28 */
1339 		},
1340 		{
1341 			.matches = {
1342 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1343 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1344 			},
1345 			.driver_data = "20180315", /* 1.33 */
1346 		},
1347 		{
1348 			.matches = {
1349 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1350 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1351 			},
1352 			/*
1353 			 * Note date based on release notes, 2.35 has been
1354 			 * reported to be good, but I've been unable to get
1355 			 * a hold of the reporter to get the DMI BIOS date.
1356 			 * TODO: fix this.
1357 			 */
1358 			.driver_data = "20180310", /* 2.35 */
1359 		},
1360 		{ }	/* terminate list */
1361 	};
1362 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1363 	int year, month, date;
1364 	char buf[9];
1365 
1366 	if (!dmi)
1367 		return false;
1368 
1369 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1370 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1371 
1372 	return strcmp(buf, dmi->driver_data) < 0;
1373 }
1374 
1375 static bool ahci_broken_online(struct pci_dev *pdev)
1376 {
1377 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1378 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1379 	static const struct dmi_system_id sysids[] = {
1380 		/*
1381 		 * There are several gigabyte boards which use
1382 		 * SIMG5723s configured as hardware RAID.  Certain
1383 		 * 5723 firmware revisions shipped there keep the link
1384 		 * online but fail to answer properly to SRST or
1385 		 * IDENTIFY when no device is attached downstream
1386 		 * causing libata to retry quite a few times leading
1387 		 * to excessive detection delay.
1388 		 *
1389 		 * As these firmwares respond to the second reset try
1390 		 * with invalid device signature, considering unknown
1391 		 * sig as offline works around the problem acceptably.
1392 		 */
1393 		{
1394 			.ident = "EP45-DQ6",
1395 			.matches = {
1396 				DMI_MATCH(DMI_BOARD_VENDOR,
1397 					  "Gigabyte Technology Co., Ltd."),
1398 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1399 			},
1400 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1401 		},
1402 		{
1403 			.ident = "EP45-DS5",
1404 			.matches = {
1405 				DMI_MATCH(DMI_BOARD_VENDOR,
1406 					  "Gigabyte Technology Co., Ltd."),
1407 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1408 			},
1409 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1410 		},
1411 		{ }	/* terminate list */
1412 	};
1413 #undef ENCODE_BUSDEVFN
1414 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1415 	unsigned int val;
1416 
1417 	if (!dmi)
1418 		return false;
1419 
1420 	val = (unsigned long)dmi->driver_data;
1421 
1422 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1423 }
1424 
1425 static bool ahci_broken_devslp(struct pci_dev *pdev)
1426 {
1427 	/* device with broken DEVSLP but still showing SDS capability */
1428 	static const struct pci_device_id ids[] = {
1429 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1430 		{}
1431 	};
1432 
1433 	return pci_match_id(ids, pdev);
1434 }
1435 
1436 #ifdef CONFIG_ATA_ACPI
1437 static void ahci_gtf_filter_workaround(struct ata_host *host)
1438 {
1439 	static const struct dmi_system_id sysids[] = {
1440 		/*
1441 		 * Aspire 3810T issues a bunch of SATA enable commands
1442 		 * via _GTF including an invalid one and one which is
1443 		 * rejected by the device.  Among the successful ones
1444 		 * is FPDMA non-zero offset enable which when enabled
1445 		 * only on the drive side leads to NCQ command
1446 		 * failures.  Filter it out.
1447 		 */
1448 		{
1449 			.ident = "Aspire 3810T",
1450 			.matches = {
1451 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1452 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1453 			},
1454 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1455 		},
1456 		{ }
1457 	};
1458 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1459 	unsigned int filter;
1460 	int i;
1461 
1462 	if (!dmi)
1463 		return;
1464 
1465 	filter = (unsigned long)dmi->driver_data;
1466 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1467 		 filter, dmi->ident);
1468 
1469 	for (i = 0; i < host->n_ports; i++) {
1470 		struct ata_port *ap = host->ports[i];
1471 		struct ata_link *link;
1472 		struct ata_device *dev;
1473 
1474 		ata_for_each_link(link, ap, EDGE)
1475 			ata_for_each_dev(dev, link, ALL)
1476 				dev->gtf_filter |= filter;
1477 	}
1478 }
1479 #else
1480 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1481 {}
1482 #endif
1483 
1484 /*
1485  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1486  * as DUMMY, or detected but eventually get a "link down" and never get up
1487  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1488  * port_map may hold a value of 0x00.
1489  *
1490  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1491  * and can significantly reduce the occurrence of the problem.
1492  *
1493  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1494  */
1495 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1496 				    struct pci_dev *pdev)
1497 {
1498 	static const struct dmi_system_id sysids[] = {
1499 		{
1500 			.ident = "Acer Switch Alpha 12",
1501 			.matches = {
1502 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1503 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1504 			},
1505 		},
1506 		{ }
1507 	};
1508 
1509 	if (dmi_check_system(sysids)) {
1510 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1511 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1512 			hpriv->port_map = 0x7;
1513 			hpriv->cap = 0xC734FF02;
1514 		}
1515 	}
1516 }
1517 
1518 #ifdef CONFIG_ARM64
1519 /*
1520  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1521  * Workaround is to make sure all pending IRQs are served before leaving
1522  * handler.
1523  */
1524 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1525 {
1526 	struct ata_host *host = dev_instance;
1527 	struct ahci_host_priv *hpriv;
1528 	unsigned int rc = 0;
1529 	void __iomem *mmio;
1530 	u32 irq_stat, irq_masked;
1531 	unsigned int handled = 1;
1532 
1533 	hpriv = host->private_data;
1534 	mmio = hpriv->mmio;
1535 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1536 	if (!irq_stat)
1537 		return IRQ_NONE;
1538 
1539 	do {
1540 		irq_masked = irq_stat & hpriv->port_map;
1541 		spin_lock(&host->lock);
1542 		rc = ahci_handle_port_intr(host, irq_masked);
1543 		if (!rc)
1544 			handled = 0;
1545 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1546 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1547 		spin_unlock(&host->lock);
1548 	} while (irq_stat);
1549 
1550 	return IRQ_RETVAL(handled);
1551 }
1552 #endif
1553 
1554 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1555 		struct ahci_host_priv *hpriv)
1556 {
1557 	int i;
1558 	u32 cap;
1559 
1560 	/*
1561 	 * Check if this device might have remapped nvme devices.
1562 	 */
1563 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1564 	    pci_resource_len(pdev, bar) < SZ_512K ||
1565 	    bar != AHCI_PCI_BAR_STANDARD ||
1566 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1567 		return;
1568 
1569 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1570 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1571 		if ((cap & (1 << i)) == 0)
1572 			continue;
1573 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1574 				!= PCI_CLASS_STORAGE_EXPRESS)
1575 			continue;
1576 
1577 		/* We've found a remapped device */
1578 		hpriv->remapped_nvme++;
1579 	}
1580 
1581 	if (!hpriv->remapped_nvme)
1582 		return;
1583 
1584 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1585 		 hpriv->remapped_nvme);
1586 	dev_warn(&pdev->dev,
1587 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1588 
1589 	/*
1590 	 * Don't rely on the msi-x capability in the remap case,
1591 	 * share the legacy interrupt across ahci and remapped devices.
1592 	 */
1593 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1594 }
1595 
1596 static int ahci_get_irq_vector(struct ata_host *host, int port)
1597 {
1598 	return pci_irq_vector(to_pci_dev(host->dev), port);
1599 }
1600 
1601 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1602 			struct ahci_host_priv *hpriv)
1603 {
1604 	int nvec;
1605 
1606 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1607 		return -ENODEV;
1608 
1609 	/*
1610 	 * If number of MSIs is less than number of ports then Sharing Last
1611 	 * Message mode could be enforced. In this case assume that advantage
1612 	 * of multipe MSIs is negated and use single MSI mode instead.
1613 	 */
1614 	if (n_ports > 1) {
1615 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1616 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1617 		if (nvec > 0) {
1618 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1619 				hpriv->get_irq_vector = ahci_get_irq_vector;
1620 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1621 				return nvec;
1622 			}
1623 
1624 			/*
1625 			 * Fallback to single MSI mode if the controller
1626 			 * enforced MRSM mode.
1627 			 */
1628 			printk(KERN_INFO
1629 				"ahci: MRSM is on, fallback to single MSI\n");
1630 			pci_free_irq_vectors(pdev);
1631 		}
1632 	}
1633 
1634 	/*
1635 	 * If the host is not capable of supporting per-port vectors, fall
1636 	 * back to single MSI before finally attempting single MSI-X.
1637 	 */
1638 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1639 	if (nvec == 1)
1640 		return nvec;
1641 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1642 }
1643 
1644 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1645 					   struct ahci_host_priv *hpriv)
1646 {
1647 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1648 
1649 
1650 	/* Ignore processing for chipsets that don't use policy */
1651 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1652 		return;
1653 
1654 	/* user modified policy via module param */
1655 	if (mobile_lpm_policy != -1) {
1656 		policy = mobile_lpm_policy;
1657 		goto update_policy;
1658 	}
1659 
1660 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1661 		if (hpriv->cap & HOST_CAP_PART)
1662 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1663 		else if (hpriv->cap & HOST_CAP_SSC)
1664 			policy = ATA_LPM_MIN_POWER;
1665 	}
1666 
1667 update_policy:
1668 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1669 		ap->target_lpm_policy = policy;
1670 }
1671 
1672 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1673 {
1674 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1675 	u16 tmp16;
1676 
1677 	/*
1678 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1679 	 */
1680 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1681 		return;
1682 
1683 	/* Skip applying the quirk on Denverton and beyond */
1684 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1685 		return;
1686 
1687 	/*
1688 	 * port_map is determined from PORTS_IMPL PCI register which is
1689 	 * implemented as write or write-once register.  If the register
1690 	 * isn't programmed, ahci automatically generates it from number
1691 	 * of ports, which is good enough for PCS programming. It is
1692 	 * otherwise expected that platform firmware enables the ports
1693 	 * before the OS boots.
1694 	 */
1695 	pci_read_config_word(pdev, PCS_6, &tmp16);
1696 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1697 		tmp16 |= hpriv->port_map;
1698 		pci_write_config_word(pdev, PCS_6, tmp16);
1699 	}
1700 }
1701 
1702 static ssize_t remapped_nvme_show(struct device *dev,
1703 				  struct device_attribute *attr,
1704 				  char *buf)
1705 {
1706 	struct ata_host *host = dev_get_drvdata(dev);
1707 	struct ahci_host_priv *hpriv = host->private_data;
1708 
1709 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1710 }
1711 
1712 static DEVICE_ATTR_RO(remapped_nvme);
1713 
1714 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1715 {
1716 	unsigned int board_id = ent->driver_data;
1717 	struct ata_port_info pi = ahci_port_info[board_id];
1718 	const struct ata_port_info *ppi[] = { &pi, NULL };
1719 	struct device *dev = &pdev->dev;
1720 	struct ahci_host_priv *hpriv;
1721 	struct ata_host *host;
1722 	int n_ports, i, rc;
1723 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1724 
1725 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1726 
1727 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1728 
1729 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1730 	   can drive them all so if both drivers are selected make sure
1731 	   AHCI stays out of the way */
1732 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1733 		return -ENODEV;
1734 
1735 	/* Apple BIOS on MCP89 prevents us using AHCI */
1736 	if (is_mcp89_apple(pdev))
1737 		ahci_mcp89_apple_enable(pdev);
1738 
1739 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1740 	 * At the moment, we can only use the AHCI mode. Let the users know
1741 	 * that for SAS drives they're out of luck.
1742 	 */
1743 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1744 		dev_info(&pdev->dev,
1745 			 "PDC42819 can only drive SATA devices with this driver\n");
1746 
1747 	/* Some devices use non-standard BARs */
1748 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1749 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1750 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1751 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1752 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1753 		if (pdev->device == 0xa01c)
1754 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1755 		if (pdev->device == 0xa084)
1756 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1757 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1758 		if (pdev->device == 0x7a08)
1759 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1760 	}
1761 
1762 	/* acquire resources */
1763 	rc = pcim_enable_device(pdev);
1764 	if (rc)
1765 		return rc;
1766 
1767 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1768 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1769 		u8 map;
1770 
1771 		/* ICH6s share the same PCI ID for both piix and ahci
1772 		 * modes.  Enabling ahci mode while MAP indicates
1773 		 * combined mode is a bad idea.  Yield to ata_piix.
1774 		 */
1775 		pci_read_config_byte(pdev, ICH_MAP, &map);
1776 		if (map & 0x3) {
1777 			dev_info(&pdev->dev,
1778 				 "controller is in combined mode, can't enable AHCI mode\n");
1779 			return -ENODEV;
1780 		}
1781 	}
1782 
1783 	/* AHCI controllers often implement SFF compatible interface.
1784 	 * Grab all PCI BARs just in case.
1785 	 */
1786 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1787 	if (rc == -EBUSY)
1788 		pcim_pin_device(pdev);
1789 	if (rc)
1790 		return rc;
1791 
1792 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1793 	if (!hpriv)
1794 		return -ENOMEM;
1795 	hpriv->flags |= (unsigned long)pi.private_data;
1796 
1797 	/* MCP65 revision A1 and A2 can't do MSI */
1798 	if (board_id == board_ahci_mcp65 &&
1799 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1800 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1801 
1802 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1803 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1804 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1805 
1806 	/* only some SB600s can do 64bit DMA */
1807 	if (ahci_sb600_enable_64bit(pdev))
1808 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1809 
1810 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1811 
1812 	/* detect remapped nvme devices */
1813 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1814 
1815 	sysfs_add_file_to_group(&pdev->dev.kobj,
1816 				&dev_attr_remapped_nvme.attr,
1817 				NULL);
1818 
1819 	/* must set flag prior to save config in order to take effect */
1820 	if (ahci_broken_devslp(pdev))
1821 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1822 
1823 #ifdef CONFIG_ARM64
1824 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1825 	    pdev->device == 0xa235 &&
1826 	    pdev->revision < 0x30)
1827 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1828 
1829 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1830 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1831 #endif
1832 
1833 	/* save initial config */
1834 	ahci_pci_save_initial_config(pdev, hpriv);
1835 
1836 	/* prepare host */
1837 	if (hpriv->cap & HOST_CAP_NCQ) {
1838 		pi.flags |= ATA_FLAG_NCQ;
1839 		/*
1840 		 * Auto-activate optimization is supposed to be
1841 		 * supported on all AHCI controllers indicating NCQ
1842 		 * capability, but it seems to be broken on some
1843 		 * chipsets including NVIDIAs.
1844 		 */
1845 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1846 			pi.flags |= ATA_FLAG_FPDMA_AA;
1847 
1848 		/*
1849 		 * All AHCI controllers should be forward-compatible
1850 		 * with the new auxiliary field. This code should be
1851 		 * conditionalized if any buggy AHCI controllers are
1852 		 * encountered.
1853 		 */
1854 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1855 	}
1856 
1857 	if (hpriv->cap & HOST_CAP_PMP)
1858 		pi.flags |= ATA_FLAG_PMP;
1859 
1860 	ahci_set_em_messages(hpriv, &pi);
1861 
1862 	if (ahci_broken_system_poweroff(pdev)) {
1863 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1864 		dev_info(&pdev->dev,
1865 			"quirky BIOS, skipping spindown on poweroff\n");
1866 	}
1867 
1868 	if (ahci_broken_lpm(pdev)) {
1869 		pi.flags |= ATA_FLAG_NO_LPM;
1870 		dev_warn(&pdev->dev,
1871 			 "BIOS update required for Link Power Management support\n");
1872 	}
1873 
1874 	if (ahci_broken_suspend(pdev)) {
1875 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1876 		dev_warn(&pdev->dev,
1877 			 "BIOS update required for suspend/resume\n");
1878 	}
1879 
1880 	if (ahci_broken_online(pdev)) {
1881 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1882 		dev_info(&pdev->dev,
1883 			 "online status unreliable, applying workaround\n");
1884 	}
1885 
1886 
1887 	/* Acer SA5-271 workaround modifies private_data */
1888 	acer_sa5_271_workaround(hpriv, pdev);
1889 
1890 	/* CAP.NP sometimes indicate the index of the last enabled
1891 	 * port, at other times, that of the last possible port, so
1892 	 * determining the maximum port number requires looking at
1893 	 * both CAP.NP and port_map.
1894 	 */
1895 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1896 
1897 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1898 	if (!host)
1899 		return -ENOMEM;
1900 	host->private_data = hpriv;
1901 
1902 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1903 		/* legacy intx interrupts */
1904 		pci_intx(pdev, 1);
1905 	}
1906 	hpriv->irq = pci_irq_vector(pdev, 0);
1907 
1908 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1909 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1910 	else
1911 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1912 
1913 	if (!(hpriv->cap & HOST_CAP_PART))
1914 		host->flags |= ATA_HOST_NO_PART;
1915 
1916 	if (!(hpriv->cap & HOST_CAP_SSC))
1917 		host->flags |= ATA_HOST_NO_SSC;
1918 
1919 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
1920 		host->flags |= ATA_HOST_NO_DEVSLP;
1921 
1922 	if (pi.flags & ATA_FLAG_EM)
1923 		ahci_reset_em(host);
1924 
1925 	for (i = 0; i < host->n_ports; i++) {
1926 		struct ata_port *ap = host->ports[i];
1927 
1928 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1929 		ata_port_pbar_desc(ap, ahci_pci_bar,
1930 				   0x100 + ap->port_no * 0x80, "port");
1931 
1932 		/* set enclosure management message type */
1933 		if (ap->flags & ATA_FLAG_EM)
1934 			ap->em_message_type = hpriv->em_msg_type;
1935 
1936 		ahci_update_initial_lpm_policy(ap, hpriv);
1937 
1938 		/* disabled/not-implemented port */
1939 		if (!(hpriv->port_map & (1 << i)))
1940 			ap->ops = &ata_dummy_port_ops;
1941 	}
1942 
1943 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1944 	ahci_p5wdh_workaround(host);
1945 
1946 	/* apply gtf filter quirk */
1947 	ahci_gtf_filter_workaround(host);
1948 
1949 	/* initialize adapter */
1950 	rc = ahci_configure_dma_masks(pdev, hpriv);
1951 	if (rc)
1952 		return rc;
1953 
1954 	rc = ahci_pci_reset_controller(host);
1955 	if (rc)
1956 		return rc;
1957 
1958 	ahci_pci_init_controller(host);
1959 	ahci_pci_print_info(host);
1960 
1961 	pci_set_master(pdev);
1962 
1963 	rc = ahci_host_activate(host, &ahci_sht);
1964 	if (rc)
1965 		return rc;
1966 
1967 	pm_runtime_put_noidle(&pdev->dev);
1968 	return 0;
1969 }
1970 
1971 static void ahci_shutdown_one(struct pci_dev *pdev)
1972 {
1973 	ata_pci_shutdown_one(pdev);
1974 }
1975 
1976 static void ahci_remove_one(struct pci_dev *pdev)
1977 {
1978 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1979 				     &dev_attr_remapped_nvme.attr,
1980 				     NULL);
1981 	pm_runtime_get_noresume(&pdev->dev);
1982 	ata_pci_remove_one(pdev);
1983 }
1984 
1985 module_pci_driver(ahci_pci_driver);
1986 
1987 MODULE_AUTHOR("Jeff Garzik");
1988 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1989 MODULE_LICENSE("GPL");
1990 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1991 MODULE_VERSION(DRV_VERSION);
1992