xref: /linux/drivers/ata/ahci.c (revision 119ff04864a24470b1e531bb53e5c141aa8fefb0)
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 	{ PCI_VDEVICE(INTEL, 0x7ae2), board_ahci_low_power }, /* Alder Lake-P AHCI */
435 
436 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
437 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
438 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
439 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
440 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
441 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
442 	/* May need to update quirk_jmicron_async_suspend() for additions */
443 
444 	/* ATI */
445 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
446 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
447 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
448 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
449 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
450 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
451 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
452 
453 	/* Amazon's Annapurna Labs support */
454 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
455 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
456 		.class_mask = 0xffffff,
457 		board_ahci_al },
458 	/* AMD */
459 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
460 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
461 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
462 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_low_power }, /* AMD Green Sardine */
463 	/* AMD is using RAID class only for ahci controllers */
464 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
465 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
466 
467 	/* Dell S140/S150 */
468 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
469 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
470 
471 	/* VIA */
472 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
473 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
474 
475 	/* NVIDIA */
476 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
477 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
478 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
479 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
480 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
481 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
482 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
483 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
486 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
487 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
488 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
489 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
490 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
491 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
492 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
493 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
494 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
495 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
496 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
502 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
503 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
504 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
505 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
506 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
507 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
508 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
509 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
510 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
511 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
512 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
514 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
515 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
516 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
517 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
518 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
519 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
520 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
521 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
522 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
523 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
549 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
550 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
551 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
552 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
553 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
554 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
555 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
556 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
557 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
558 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
559 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
560 
561 	/* SiS */
562 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
563 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
564 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
565 
566 	/* ST Microelectronics */
567 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
568 
569 	/* Marvell */
570 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
571 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
572 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
573 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
574 	  .class_mask = 0xffffff,
575 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
576 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
577 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
578 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
579 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
580 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
581 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
582 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
583 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
584 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
585 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
586 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
587 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
588 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
589 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
590 	  .driver_data = board_ahci_yes_fbs },
591 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
592 	  .driver_data = board_ahci_yes_fbs },
593 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
594 	  .driver_data = board_ahci_yes_fbs },
595 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
596 	  .driver_data = board_ahci_yes_fbs },
597 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
598 	  .driver_data = board_ahci_no_debounce_delay },
599 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
600 	  .driver_data = board_ahci_yes_fbs },
601 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
602 	  .driver_data = board_ahci_yes_fbs },
603 
604 	/* Promise */
605 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
606 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
607 
608 	/* ASMedia */
609 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci_43bit_dma },	/* ASM1060 */
610 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci_43bit_dma },	/* ASM1060 */
611 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci_43bit_dma },	/* ASM1061 */
612 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci_43bit_dma },	/* ASM1061/1062 */
613 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci_43bit_dma },	/* ASM1061R */
614 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci_43bit_dma },	/* ASM1062R */
615 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci_43bit_dma },	/* ASM1062+JMB575 */
616 	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
617 	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
618 	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
619 	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
620 	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
621 
622 	/*
623 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
624 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
625 	 */
626 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
627 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
628 
629 	/* Enmotus */
630 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
631 
632 	/* Loongson */
633 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
634 
635 	/* Generic, PCI class code for AHCI */
636 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
637 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
638 
639 	{ }	/* terminate list */
640 };
641 
642 static const struct dev_pm_ops ahci_pci_pm_ops = {
643 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
644 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
645 			   ahci_pci_device_runtime_resume, NULL)
646 };
647 
648 static struct pci_driver ahci_pci_driver = {
649 	.name			= DRV_NAME,
650 	.id_table		= ahci_pci_tbl,
651 	.probe			= ahci_init_one,
652 	.remove			= ahci_remove_one,
653 	.shutdown		= ahci_shutdown_one,
654 	.driver = {
655 		.pm		= &ahci_pci_pm_ops,
656 	},
657 };
658 
659 #if IS_ENABLED(CONFIG_PATA_MARVELL)
660 static int marvell_enable;
661 #else
662 static int marvell_enable = 1;
663 #endif
664 module_param(marvell_enable, int, 0644);
665 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
666 
667 static int mobile_lpm_policy = -1;
668 module_param(mobile_lpm_policy, int, 0644);
669 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
670 
671 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
672 					 struct ahci_host_priv *hpriv)
673 {
674 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == 0x1166) {
675 		dev_info(&pdev->dev, "ASM1166 has only six ports\n");
676 		hpriv->saved_port_map = 0x3f;
677 	}
678 
679 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
680 		dev_info(&pdev->dev, "JMB361 has only one port\n");
681 		hpriv->saved_port_map = 1;
682 	}
683 
684 	/*
685 	 * Temporary Marvell 6145 hack: PATA port presence
686 	 * is asserted through the standard AHCI port
687 	 * presence register, as bit 4 (counting from 0)
688 	 */
689 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
690 		if (pdev->device == 0x6121)
691 			hpriv->mask_port_map = 0x3;
692 		else
693 			hpriv->mask_port_map = 0xf;
694 		dev_info(&pdev->dev,
695 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
696 	}
697 
698 	ahci_save_initial_config(&pdev->dev, hpriv);
699 }
700 
701 static int ahci_pci_reset_controller(struct ata_host *host)
702 {
703 	struct pci_dev *pdev = to_pci_dev(host->dev);
704 	struct ahci_host_priv *hpriv = host->private_data;
705 	int rc;
706 
707 	rc = ahci_reset_controller(host);
708 	if (rc)
709 		return rc;
710 
711 	/*
712 	 * If platform firmware failed to enable ports, try to enable
713 	 * them here.
714 	 */
715 	ahci_intel_pcs_quirk(pdev, hpriv);
716 
717 	return 0;
718 }
719 
720 static void ahci_pci_init_controller(struct ata_host *host)
721 {
722 	struct ahci_host_priv *hpriv = host->private_data;
723 	struct pci_dev *pdev = to_pci_dev(host->dev);
724 	void __iomem *port_mmio;
725 	u32 tmp;
726 	int mv;
727 
728 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
729 		if (pdev->device == 0x6121)
730 			mv = 2;
731 		else
732 			mv = 4;
733 		port_mmio = __ahci_port_base(hpriv, mv);
734 
735 		writel(0, port_mmio + PORT_IRQ_MASK);
736 
737 		/* clear port IRQ */
738 		tmp = readl(port_mmio + PORT_IRQ_STAT);
739 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
740 		if (tmp)
741 			writel(tmp, port_mmio + PORT_IRQ_STAT);
742 	}
743 
744 	ahci_init_controller(host);
745 }
746 
747 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
748 				 unsigned long deadline)
749 {
750 	struct ata_port *ap = link->ap;
751 	struct ahci_host_priv *hpriv = ap->host->private_data;
752 	bool online;
753 	int rc;
754 
755 	hpriv->stop_engine(ap);
756 
757 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
758 				 deadline, &online, NULL);
759 
760 	hpriv->start_engine(ap);
761 
762 	/* vt8251 doesn't clear BSY on signature FIS reception,
763 	 * request follow-up softreset.
764 	 */
765 	return online ? -EAGAIN : rc;
766 }
767 
768 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
769 				unsigned long deadline)
770 {
771 	struct ata_port *ap = link->ap;
772 	struct ahci_port_priv *pp = ap->private_data;
773 	struct ahci_host_priv *hpriv = ap->host->private_data;
774 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
775 	struct ata_taskfile tf;
776 	bool online;
777 	int rc;
778 
779 	hpriv->stop_engine(ap);
780 
781 	/* clear D2H reception area to properly wait for D2H FIS */
782 	ata_tf_init(link->device, &tf);
783 	tf.status = ATA_BUSY;
784 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
785 
786 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
787 				 deadline, &online, NULL);
788 
789 	hpriv->start_engine(ap);
790 
791 	/* The pseudo configuration device on SIMG4726 attached to
792 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
793 	 * hardreset if no device is attached to the first downstream
794 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
795 	 * work around this, wait for !BSY only briefly.  If BSY isn't
796 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
797 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
798 	 *
799 	 * Wait for two seconds.  Devices attached to downstream port
800 	 * which can't process the following IDENTIFY after this will
801 	 * have to be reset again.  For most cases, this should
802 	 * suffice while making probing snappish enough.
803 	 */
804 	if (online) {
805 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
806 					  ahci_check_ready);
807 		if (rc)
808 			ahci_kick_engine(ap);
809 	}
810 	return rc;
811 }
812 
813 /*
814  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
815  *
816  * It has been observed with some SSDs that the timing of events in the
817  * link synchronization phase can leave the port in a state that can not
818  * be recovered by a SATA-hard-reset alone.  The failing signature is
819  * SStatus.DET stuck at 1 ("Device presence detected but Phy
820  * communication not established").  It was found that unloading and
821  * reloading the driver when this problem occurs allows the drive
822  * connection to be recovered (DET advanced to 0x3).  The critical
823  * component of reloading the driver is that the port state machines are
824  * reset by bouncing "port enable" in the AHCI PCS configuration
825  * register.  So, reproduce that effect by bouncing a port whenever we
826  * see DET==1 after a reset.
827  */
828 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
829 			      unsigned long deadline)
830 {
831 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
832 	struct ata_port *ap = link->ap;
833 	struct ahci_port_priv *pp = ap->private_data;
834 	struct ahci_host_priv *hpriv = ap->host->private_data;
835 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
836 	unsigned long tmo = deadline - jiffies;
837 	struct ata_taskfile tf;
838 	bool online;
839 	int rc, i;
840 
841 	hpriv->stop_engine(ap);
842 
843 	for (i = 0; i < 2; i++) {
844 		u16 val;
845 		u32 sstatus;
846 		int port = ap->port_no;
847 		struct ata_host *host = ap->host;
848 		struct pci_dev *pdev = to_pci_dev(host->dev);
849 
850 		/* clear D2H reception area to properly wait for D2H FIS */
851 		ata_tf_init(link->device, &tf);
852 		tf.status = ATA_BUSY;
853 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
854 
855 		rc = sata_link_hardreset(link, timing, deadline, &online,
856 				ahci_check_ready);
857 
858 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
859 				(sstatus & 0xf) != 1)
860 			break;
861 
862 		ata_link_info(link,  "avn bounce port%d\n", port);
863 
864 		pci_read_config_word(pdev, 0x92, &val);
865 		val &= ~(1 << port);
866 		pci_write_config_word(pdev, 0x92, val);
867 		ata_msleep(ap, 1000);
868 		val |= 1 << port;
869 		pci_write_config_word(pdev, 0x92, val);
870 		deadline += tmo;
871 	}
872 
873 	hpriv->start_engine(ap);
874 
875 	if (online)
876 		*class = ahci_dev_classify(ap);
877 
878 	return rc;
879 }
880 
881 
882 #ifdef CONFIG_PM
883 static void ahci_pci_disable_interrupts(struct ata_host *host)
884 {
885 	struct ahci_host_priv *hpriv = host->private_data;
886 	void __iomem *mmio = hpriv->mmio;
887 	u32 ctl;
888 
889 	/* AHCI spec rev1.1 section 8.3.3:
890 	 * Software must disable interrupts prior to requesting a
891 	 * transition of the HBA to D3 state.
892 	 */
893 	ctl = readl(mmio + HOST_CTL);
894 	ctl &= ~HOST_IRQ_EN;
895 	writel(ctl, mmio + HOST_CTL);
896 	readl(mmio + HOST_CTL); /* flush */
897 }
898 
899 static int ahci_pci_device_runtime_suspend(struct device *dev)
900 {
901 	struct pci_dev *pdev = to_pci_dev(dev);
902 	struct ata_host *host = pci_get_drvdata(pdev);
903 
904 	ahci_pci_disable_interrupts(host);
905 	return 0;
906 }
907 
908 static int ahci_pci_device_runtime_resume(struct device *dev)
909 {
910 	struct pci_dev *pdev = to_pci_dev(dev);
911 	struct ata_host *host = pci_get_drvdata(pdev);
912 	int rc;
913 
914 	rc = ahci_pci_reset_controller(host);
915 	if (rc)
916 		return rc;
917 	ahci_pci_init_controller(host);
918 	return 0;
919 }
920 
921 #ifdef CONFIG_PM_SLEEP
922 static int ahci_pci_device_suspend(struct device *dev)
923 {
924 	struct pci_dev *pdev = to_pci_dev(dev);
925 	struct ata_host *host = pci_get_drvdata(pdev);
926 	struct ahci_host_priv *hpriv = host->private_data;
927 
928 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
929 		dev_err(&pdev->dev,
930 			"BIOS update required for suspend/resume\n");
931 		return -EIO;
932 	}
933 
934 	ahci_pci_disable_interrupts(host);
935 	ata_host_suspend(host, PMSG_SUSPEND);
936 	return 0;
937 }
938 
939 static int ahci_pci_device_resume(struct device *dev)
940 {
941 	struct pci_dev *pdev = to_pci_dev(dev);
942 	struct ata_host *host = pci_get_drvdata(pdev);
943 	int rc;
944 
945 	/* Apple BIOS helpfully mangles the registers on resume */
946 	if (is_mcp89_apple(pdev))
947 		ahci_mcp89_apple_enable(pdev);
948 
949 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
950 		rc = ahci_pci_reset_controller(host);
951 		if (rc)
952 			return rc;
953 
954 		ahci_pci_init_controller(host);
955 	}
956 
957 	ata_host_resume(host);
958 
959 	return 0;
960 }
961 #endif
962 
963 #endif /* CONFIG_PM */
964 
965 static int ahci_configure_dma_masks(struct pci_dev *pdev,
966 				    struct ahci_host_priv *hpriv)
967 {
968 	int dma_bits;
969 	int rc;
970 
971 	if (hpriv->cap & HOST_CAP_64) {
972 		dma_bits = 64;
973 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
974 			dma_bits = 43;
975 	} else {
976 		dma_bits = 32;
977 	}
978 
979 	/*
980 	 * If the device fixup already set the dma_mask to some non-standard
981 	 * value, don't extend it here. This happens on STA2X11, for example.
982 	 *
983 	 * XXX: manipulating the DMA mask from platform code is completely
984 	 * bogus, platform code should use dev->bus_dma_limit instead..
985 	 */
986 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
987 		return 0;
988 
989 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
990 	if (rc)
991 		dev_err(&pdev->dev, "DMA enable failed\n");
992 	return rc;
993 }
994 
995 static void ahci_pci_print_info(struct ata_host *host)
996 {
997 	struct pci_dev *pdev = to_pci_dev(host->dev);
998 	u16 cc;
999 	const char *scc_s;
1000 
1001 	pci_read_config_word(pdev, 0x0a, &cc);
1002 	if (cc == PCI_CLASS_STORAGE_IDE)
1003 		scc_s = "IDE";
1004 	else if (cc == PCI_CLASS_STORAGE_SATA)
1005 		scc_s = "SATA";
1006 	else if (cc == PCI_CLASS_STORAGE_RAID)
1007 		scc_s = "RAID";
1008 	else
1009 		scc_s = "unknown";
1010 
1011 	ahci_print_info(host, scc_s);
1012 }
1013 
1014 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1015  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1016  * support PMP and the 4726 either directly exports the device
1017  * attached to the first downstream port or acts as a hardware storage
1018  * controller and emulate a single ATA device (can be RAID 0/1 or some
1019  * other configuration).
1020  *
1021  * When there's no device attached to the first downstream port of the
1022  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1023  * configure the 4726.  However, ATA emulation of the device is very
1024  * lame.  It doesn't send signature D2H Reg FIS after the initial
1025  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1026  *
1027  * The following function works around the problem by always using
1028  * hardreset on the port and not depending on receiving signature FIS
1029  * afterward.  If signature FIS isn't received soon, ATA class is
1030  * assumed without follow-up softreset.
1031  */
1032 static void ahci_p5wdh_workaround(struct ata_host *host)
1033 {
1034 	static const struct dmi_system_id sysids[] = {
1035 		{
1036 			.ident = "P5W DH Deluxe",
1037 			.matches = {
1038 				DMI_MATCH(DMI_SYS_VENDOR,
1039 					  "ASUSTEK COMPUTER INC"),
1040 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1041 			},
1042 		},
1043 		{ }
1044 	};
1045 	struct pci_dev *pdev = to_pci_dev(host->dev);
1046 
1047 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1048 	    dmi_check_system(sysids)) {
1049 		struct ata_port *ap = host->ports[1];
1050 
1051 		dev_info(&pdev->dev,
1052 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1053 
1054 		ap->ops = &ahci_p5wdh_ops;
1055 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1056 	}
1057 }
1058 
1059 /*
1060  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1061  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1062  */
1063 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1064 {
1065 	u32 val;
1066 
1067 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1068 
1069 	pci_read_config_dword(pdev, 0xf8, &val);
1070 	val |= 1 << 0x1b;
1071 	/* the following changes the device ID, but appears not to affect function */
1072 	/* val = (val & ~0xf0000000) | 0x80000000; */
1073 	pci_write_config_dword(pdev, 0xf8, val);
1074 
1075 	pci_read_config_dword(pdev, 0x54c, &val);
1076 	val |= 1 << 0xc;
1077 	pci_write_config_dword(pdev, 0x54c, val);
1078 
1079 	pci_read_config_dword(pdev, 0x4a4, &val);
1080 	val &= 0xff;
1081 	val |= 0x01060100;
1082 	pci_write_config_dword(pdev, 0x4a4, val);
1083 
1084 	pci_read_config_dword(pdev, 0x54c, &val);
1085 	val &= ~(1 << 0xc);
1086 	pci_write_config_dword(pdev, 0x54c, val);
1087 
1088 	pci_read_config_dword(pdev, 0xf8, &val);
1089 	val &= ~(1 << 0x1b);
1090 	pci_write_config_dword(pdev, 0xf8, val);
1091 }
1092 
1093 static bool is_mcp89_apple(struct pci_dev *pdev)
1094 {
1095 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1096 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1097 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1098 		pdev->subsystem_device == 0xcb89;
1099 }
1100 
1101 /* only some SB600 ahci controllers can do 64bit DMA */
1102 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1103 {
1104 	static const struct dmi_system_id sysids[] = {
1105 		/*
1106 		 * The oldest version known to be broken is 0901 and
1107 		 * working is 1501 which was released on 2007-10-26.
1108 		 * Enable 64bit DMA on 1501 and anything newer.
1109 		 *
1110 		 * Please read bko#9412 for more info.
1111 		 */
1112 		{
1113 			.ident = "ASUS M2A-VM",
1114 			.matches = {
1115 				DMI_MATCH(DMI_BOARD_VENDOR,
1116 					  "ASUSTeK Computer INC."),
1117 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1118 			},
1119 			.driver_data = "20071026",	/* yyyymmdd */
1120 		},
1121 		/*
1122 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1123 		 * support 64bit DMA.
1124 		 *
1125 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1126 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1127 		 * This spelling mistake was fixed in BIOS version 1.5, so
1128 		 * 1.5 and later have the Manufacturer as
1129 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1130 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1131 		 *
1132 		 * BIOS versions earlier than 1.9 had a Board Product Name
1133 		 * DMI field of "MS-7376". This was changed to be
1134 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1135 		 * match on DMI_BOARD_NAME of "MS-7376".
1136 		 */
1137 		{
1138 			.ident = "MSI K9A2 Platinum",
1139 			.matches = {
1140 				DMI_MATCH(DMI_BOARD_VENDOR,
1141 					  "MICRO-STAR INTER"),
1142 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1143 			},
1144 		},
1145 		/*
1146 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1147 		 * 64bit DMA.
1148 		 *
1149 		 * This board also had the typo mentioned above in the
1150 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1151 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1152 		 */
1153 		{
1154 			.ident = "MSI K9AGM2",
1155 			.matches = {
1156 				DMI_MATCH(DMI_BOARD_VENDOR,
1157 					  "MICRO-STAR INTER"),
1158 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1159 			},
1160 		},
1161 		/*
1162 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1163 		 * (all release versions from 0301 to 1206 were tested)
1164 		 */
1165 		{
1166 			.ident = "ASUS M3A",
1167 			.matches = {
1168 				DMI_MATCH(DMI_BOARD_VENDOR,
1169 					  "ASUSTeK Computer INC."),
1170 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1171 			},
1172 		},
1173 		{ }
1174 	};
1175 	const struct dmi_system_id *match;
1176 	int year, month, date;
1177 	char buf[9];
1178 
1179 	match = dmi_first_match(sysids);
1180 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1181 	    !match)
1182 		return false;
1183 
1184 	if (!match->driver_data)
1185 		goto enable_64bit;
1186 
1187 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1188 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1189 
1190 	if (strcmp(buf, match->driver_data) >= 0)
1191 		goto enable_64bit;
1192 	else {
1193 		dev_warn(&pdev->dev,
1194 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1195 			 match->ident);
1196 		return false;
1197 	}
1198 
1199 enable_64bit:
1200 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1201 	return true;
1202 }
1203 
1204 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1205 {
1206 	static const struct dmi_system_id broken_systems[] = {
1207 		{
1208 			.ident = "HP Compaq nx6310",
1209 			.matches = {
1210 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1211 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1212 			},
1213 			/* PCI slot number of the controller */
1214 			.driver_data = (void *)0x1FUL,
1215 		},
1216 		{
1217 			.ident = "HP Compaq 6720s",
1218 			.matches = {
1219 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1220 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1221 			},
1222 			/* PCI slot number of the controller */
1223 			.driver_data = (void *)0x1FUL,
1224 		},
1225 
1226 		{ }	/* terminate list */
1227 	};
1228 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1229 
1230 	if (dmi) {
1231 		unsigned long slot = (unsigned long)dmi->driver_data;
1232 		/* apply the quirk only to on-board controllers */
1233 		return slot == PCI_SLOT(pdev->devfn);
1234 	}
1235 
1236 	return false;
1237 }
1238 
1239 static bool ahci_broken_suspend(struct pci_dev *pdev)
1240 {
1241 	static const struct dmi_system_id sysids[] = {
1242 		/*
1243 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1244 		 * to the harddisk doesn't become online after
1245 		 * resuming from STR.  Warn and fail suspend.
1246 		 *
1247 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1248 		 *
1249 		 * Use dates instead of versions to match as HP is
1250 		 * apparently recycling both product and version
1251 		 * strings.
1252 		 *
1253 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1254 		 */
1255 		{
1256 			.ident = "dv4",
1257 			.matches = {
1258 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1259 				DMI_MATCH(DMI_PRODUCT_NAME,
1260 					  "HP Pavilion dv4 Notebook PC"),
1261 			},
1262 			.driver_data = "20090105",	/* F.30 */
1263 		},
1264 		{
1265 			.ident = "dv5",
1266 			.matches = {
1267 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1268 				DMI_MATCH(DMI_PRODUCT_NAME,
1269 					  "HP Pavilion dv5 Notebook PC"),
1270 			},
1271 			.driver_data = "20090506",	/* F.16 */
1272 		},
1273 		{
1274 			.ident = "dv6",
1275 			.matches = {
1276 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1277 				DMI_MATCH(DMI_PRODUCT_NAME,
1278 					  "HP Pavilion dv6 Notebook PC"),
1279 			},
1280 			.driver_data = "20090423",	/* F.21 */
1281 		},
1282 		{
1283 			.ident = "HDX18",
1284 			.matches = {
1285 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1286 				DMI_MATCH(DMI_PRODUCT_NAME,
1287 					  "HP HDX18 Notebook PC"),
1288 			},
1289 			.driver_data = "20090430",	/* F.23 */
1290 		},
1291 		/*
1292 		 * Acer eMachines G725 has the same problem.  BIOS
1293 		 * V1.03 is known to be broken.  V3.04 is known to
1294 		 * work.  Between, there are V1.06, V2.06 and V3.03
1295 		 * that we don't have much idea about.  For now,
1296 		 * blacklist anything older than V3.04.
1297 		 *
1298 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1299 		 */
1300 		{
1301 			.ident = "G725",
1302 			.matches = {
1303 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1304 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1305 			},
1306 			.driver_data = "20091216",	/* V3.04 */
1307 		},
1308 		{ }	/* terminate list */
1309 	};
1310 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1311 	int year, month, date;
1312 	char buf[9];
1313 
1314 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1315 		return false;
1316 
1317 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1318 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1319 
1320 	return strcmp(buf, dmi->driver_data) < 0;
1321 }
1322 
1323 static bool ahci_broken_lpm(struct pci_dev *pdev)
1324 {
1325 	static const struct dmi_system_id sysids[] = {
1326 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1327 		{
1328 			.matches = {
1329 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1330 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1331 			},
1332 			.driver_data = "20180406", /* 1.31 */
1333 		},
1334 		{
1335 			.matches = {
1336 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1337 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1338 			},
1339 			.driver_data = "20180420", /* 1.28 */
1340 		},
1341 		{
1342 			.matches = {
1343 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1344 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1345 			},
1346 			.driver_data = "20180315", /* 1.33 */
1347 		},
1348 		{
1349 			.matches = {
1350 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1351 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1352 			},
1353 			/*
1354 			 * Note date based on release notes, 2.35 has been
1355 			 * reported to be good, but I've been unable to get
1356 			 * a hold of the reporter to get the DMI BIOS date.
1357 			 * TODO: fix this.
1358 			 */
1359 			.driver_data = "20180310", /* 2.35 */
1360 		},
1361 		{ }	/* terminate list */
1362 	};
1363 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1364 	int year, month, date;
1365 	char buf[9];
1366 
1367 	if (!dmi)
1368 		return false;
1369 
1370 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1371 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1372 
1373 	return strcmp(buf, dmi->driver_data) < 0;
1374 }
1375 
1376 static bool ahci_broken_online(struct pci_dev *pdev)
1377 {
1378 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1379 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1380 	static const struct dmi_system_id sysids[] = {
1381 		/*
1382 		 * There are several gigabyte boards which use
1383 		 * SIMG5723s configured as hardware RAID.  Certain
1384 		 * 5723 firmware revisions shipped there keep the link
1385 		 * online but fail to answer properly to SRST or
1386 		 * IDENTIFY when no device is attached downstream
1387 		 * causing libata to retry quite a few times leading
1388 		 * to excessive detection delay.
1389 		 *
1390 		 * As these firmwares respond to the second reset try
1391 		 * with invalid device signature, considering unknown
1392 		 * sig as offline works around the problem acceptably.
1393 		 */
1394 		{
1395 			.ident = "EP45-DQ6",
1396 			.matches = {
1397 				DMI_MATCH(DMI_BOARD_VENDOR,
1398 					  "Gigabyte Technology Co., Ltd."),
1399 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1400 			},
1401 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1402 		},
1403 		{
1404 			.ident = "EP45-DS5",
1405 			.matches = {
1406 				DMI_MATCH(DMI_BOARD_VENDOR,
1407 					  "Gigabyte Technology Co., Ltd."),
1408 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1409 			},
1410 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1411 		},
1412 		{ }	/* terminate list */
1413 	};
1414 #undef ENCODE_BUSDEVFN
1415 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1416 	unsigned int val;
1417 
1418 	if (!dmi)
1419 		return false;
1420 
1421 	val = (unsigned long)dmi->driver_data;
1422 
1423 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1424 }
1425 
1426 static bool ahci_broken_devslp(struct pci_dev *pdev)
1427 {
1428 	/* device with broken DEVSLP but still showing SDS capability */
1429 	static const struct pci_device_id ids[] = {
1430 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1431 		{}
1432 	};
1433 
1434 	return pci_match_id(ids, pdev);
1435 }
1436 
1437 #ifdef CONFIG_ATA_ACPI
1438 static void ahci_gtf_filter_workaround(struct ata_host *host)
1439 {
1440 	static const struct dmi_system_id sysids[] = {
1441 		/*
1442 		 * Aspire 3810T issues a bunch of SATA enable commands
1443 		 * via _GTF including an invalid one and one which is
1444 		 * rejected by the device.  Among the successful ones
1445 		 * is FPDMA non-zero offset enable which when enabled
1446 		 * only on the drive side leads to NCQ command
1447 		 * failures.  Filter it out.
1448 		 */
1449 		{
1450 			.ident = "Aspire 3810T",
1451 			.matches = {
1452 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1453 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1454 			},
1455 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1456 		},
1457 		{ }
1458 	};
1459 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1460 	unsigned int filter;
1461 	int i;
1462 
1463 	if (!dmi)
1464 		return;
1465 
1466 	filter = (unsigned long)dmi->driver_data;
1467 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1468 		 filter, dmi->ident);
1469 
1470 	for (i = 0; i < host->n_ports; i++) {
1471 		struct ata_port *ap = host->ports[i];
1472 		struct ata_link *link;
1473 		struct ata_device *dev;
1474 
1475 		ata_for_each_link(link, ap, EDGE)
1476 			ata_for_each_dev(dev, link, ALL)
1477 				dev->gtf_filter |= filter;
1478 	}
1479 }
1480 #else
1481 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1482 {}
1483 #endif
1484 
1485 /*
1486  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1487  * as DUMMY, or detected but eventually get a "link down" and never get up
1488  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1489  * port_map may hold a value of 0x00.
1490  *
1491  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1492  * and can significantly reduce the occurrence of the problem.
1493  *
1494  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1495  */
1496 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1497 				    struct pci_dev *pdev)
1498 {
1499 	static const struct dmi_system_id sysids[] = {
1500 		{
1501 			.ident = "Acer Switch Alpha 12",
1502 			.matches = {
1503 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1504 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1505 			},
1506 		},
1507 		{ }
1508 	};
1509 
1510 	if (dmi_check_system(sysids)) {
1511 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1512 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1513 			hpriv->port_map = 0x7;
1514 			hpriv->cap = 0xC734FF02;
1515 		}
1516 	}
1517 }
1518 
1519 #ifdef CONFIG_ARM64
1520 /*
1521  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1522  * Workaround is to make sure all pending IRQs are served before leaving
1523  * handler.
1524  */
1525 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1526 {
1527 	struct ata_host *host = dev_instance;
1528 	struct ahci_host_priv *hpriv;
1529 	unsigned int rc = 0;
1530 	void __iomem *mmio;
1531 	u32 irq_stat, irq_masked;
1532 	unsigned int handled = 1;
1533 
1534 	hpriv = host->private_data;
1535 	mmio = hpriv->mmio;
1536 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1537 	if (!irq_stat)
1538 		return IRQ_NONE;
1539 
1540 	do {
1541 		irq_masked = irq_stat & hpriv->port_map;
1542 		spin_lock(&host->lock);
1543 		rc = ahci_handle_port_intr(host, irq_masked);
1544 		if (!rc)
1545 			handled = 0;
1546 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1547 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1548 		spin_unlock(&host->lock);
1549 	} while (irq_stat);
1550 
1551 	return IRQ_RETVAL(handled);
1552 }
1553 #endif
1554 
1555 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1556 		struct ahci_host_priv *hpriv)
1557 {
1558 	int i;
1559 	u32 cap;
1560 
1561 	/*
1562 	 * Check if this device might have remapped nvme devices.
1563 	 */
1564 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1565 	    pci_resource_len(pdev, bar) < SZ_512K ||
1566 	    bar != AHCI_PCI_BAR_STANDARD ||
1567 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1568 		return;
1569 
1570 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1571 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1572 		if ((cap & (1 << i)) == 0)
1573 			continue;
1574 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1575 				!= PCI_CLASS_STORAGE_EXPRESS)
1576 			continue;
1577 
1578 		/* We've found a remapped device */
1579 		hpriv->remapped_nvme++;
1580 	}
1581 
1582 	if (!hpriv->remapped_nvme)
1583 		return;
1584 
1585 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1586 		 hpriv->remapped_nvme);
1587 	dev_warn(&pdev->dev,
1588 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1589 
1590 	/*
1591 	 * Don't rely on the msi-x capability in the remap case,
1592 	 * share the legacy interrupt across ahci and remapped devices.
1593 	 */
1594 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1595 }
1596 
1597 static int ahci_get_irq_vector(struct ata_host *host, int port)
1598 {
1599 	return pci_irq_vector(to_pci_dev(host->dev), port);
1600 }
1601 
1602 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1603 			struct ahci_host_priv *hpriv)
1604 {
1605 	int nvec;
1606 
1607 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1608 		return -ENODEV;
1609 
1610 	/*
1611 	 * If number of MSIs is less than number of ports then Sharing Last
1612 	 * Message mode could be enforced. In this case assume that advantage
1613 	 * of multipe MSIs is negated and use single MSI mode instead.
1614 	 */
1615 	if (n_ports > 1) {
1616 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1617 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1618 		if (nvec > 0) {
1619 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1620 				hpriv->get_irq_vector = ahci_get_irq_vector;
1621 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1622 				return nvec;
1623 			}
1624 
1625 			/*
1626 			 * Fallback to single MSI mode if the controller
1627 			 * enforced MRSM mode.
1628 			 */
1629 			printk(KERN_INFO
1630 				"ahci: MRSM is on, fallback to single MSI\n");
1631 			pci_free_irq_vectors(pdev);
1632 		}
1633 	}
1634 
1635 	/*
1636 	 * If the host is not capable of supporting per-port vectors, fall
1637 	 * back to single MSI before finally attempting single MSI-X.
1638 	 */
1639 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1640 	if (nvec == 1)
1641 		return nvec;
1642 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1643 }
1644 
1645 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1646 					   struct ahci_host_priv *hpriv)
1647 {
1648 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1649 
1650 
1651 	/* Ignore processing for chipsets that don't use policy */
1652 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1653 		return;
1654 
1655 	/* user modified policy via module param */
1656 	if (mobile_lpm_policy != -1) {
1657 		policy = mobile_lpm_policy;
1658 		goto update_policy;
1659 	}
1660 
1661 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1662 		if (hpriv->cap & HOST_CAP_PART)
1663 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1664 		else if (hpriv->cap & HOST_CAP_SSC)
1665 			policy = ATA_LPM_MIN_POWER;
1666 	}
1667 
1668 update_policy:
1669 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1670 		ap->target_lpm_policy = policy;
1671 }
1672 
1673 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1674 {
1675 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1676 	u16 tmp16;
1677 
1678 	/*
1679 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1680 	 */
1681 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1682 		return;
1683 
1684 	/* Skip applying the quirk on Denverton and beyond */
1685 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1686 		return;
1687 
1688 	/*
1689 	 * port_map is determined from PORTS_IMPL PCI register which is
1690 	 * implemented as write or write-once register.  If the register
1691 	 * isn't programmed, ahci automatically generates it from number
1692 	 * of ports, which is good enough for PCS programming. It is
1693 	 * otherwise expected that platform firmware enables the ports
1694 	 * before the OS boots.
1695 	 */
1696 	pci_read_config_word(pdev, PCS_6, &tmp16);
1697 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1698 		tmp16 |= hpriv->port_map;
1699 		pci_write_config_word(pdev, PCS_6, tmp16);
1700 	}
1701 }
1702 
1703 static ssize_t remapped_nvme_show(struct device *dev,
1704 				  struct device_attribute *attr,
1705 				  char *buf)
1706 {
1707 	struct ata_host *host = dev_get_drvdata(dev);
1708 	struct ahci_host_priv *hpriv = host->private_data;
1709 
1710 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1711 }
1712 
1713 static DEVICE_ATTR_RO(remapped_nvme);
1714 
1715 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1716 {
1717 	unsigned int board_id = ent->driver_data;
1718 	struct ata_port_info pi = ahci_port_info[board_id];
1719 	const struct ata_port_info *ppi[] = { &pi, NULL };
1720 	struct device *dev = &pdev->dev;
1721 	struct ahci_host_priv *hpriv;
1722 	struct ata_host *host;
1723 	int n_ports, i, rc;
1724 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1725 
1726 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1727 
1728 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1729 
1730 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1731 	   can drive them all so if both drivers are selected make sure
1732 	   AHCI stays out of the way */
1733 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1734 		return -ENODEV;
1735 
1736 	/* Apple BIOS on MCP89 prevents us using AHCI */
1737 	if (is_mcp89_apple(pdev))
1738 		ahci_mcp89_apple_enable(pdev);
1739 
1740 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1741 	 * At the moment, we can only use the AHCI mode. Let the users know
1742 	 * that for SAS drives they're out of luck.
1743 	 */
1744 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1745 		dev_info(&pdev->dev,
1746 			 "PDC42819 can only drive SATA devices with this driver\n");
1747 
1748 	/* Some devices use non-standard BARs */
1749 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1750 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1751 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1752 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1753 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1754 		if (pdev->device == 0xa01c)
1755 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1756 		if (pdev->device == 0xa084)
1757 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1758 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1759 		if (pdev->device == 0x7a08)
1760 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1761 	}
1762 
1763 	/* acquire resources */
1764 	rc = pcim_enable_device(pdev);
1765 	if (rc)
1766 		return rc;
1767 
1768 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1769 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1770 		u8 map;
1771 
1772 		/* ICH6s share the same PCI ID for both piix and ahci
1773 		 * modes.  Enabling ahci mode while MAP indicates
1774 		 * combined mode is a bad idea.  Yield to ata_piix.
1775 		 */
1776 		pci_read_config_byte(pdev, ICH_MAP, &map);
1777 		if (map & 0x3) {
1778 			dev_info(&pdev->dev,
1779 				 "controller is in combined mode, can't enable AHCI mode\n");
1780 			return -ENODEV;
1781 		}
1782 	}
1783 
1784 	/* AHCI controllers often implement SFF compatible interface.
1785 	 * Grab all PCI BARs just in case.
1786 	 */
1787 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1788 	if (rc == -EBUSY)
1789 		pcim_pin_device(pdev);
1790 	if (rc)
1791 		return rc;
1792 
1793 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1794 	if (!hpriv)
1795 		return -ENOMEM;
1796 	hpriv->flags |= (unsigned long)pi.private_data;
1797 
1798 	/* MCP65 revision A1 and A2 can't do MSI */
1799 	if (board_id == board_ahci_mcp65 &&
1800 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1801 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1802 
1803 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1804 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1805 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1806 
1807 	/* only some SB600s can do 64bit DMA */
1808 	if (ahci_sb600_enable_64bit(pdev))
1809 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1810 
1811 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1812 
1813 	/* detect remapped nvme devices */
1814 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1815 
1816 	sysfs_add_file_to_group(&pdev->dev.kobj,
1817 				&dev_attr_remapped_nvme.attr,
1818 				NULL);
1819 
1820 	/* must set flag prior to save config in order to take effect */
1821 	if (ahci_broken_devslp(pdev))
1822 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1823 
1824 #ifdef CONFIG_ARM64
1825 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1826 	    pdev->device == 0xa235 &&
1827 	    pdev->revision < 0x30)
1828 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1829 
1830 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1831 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1832 #endif
1833 
1834 	/* save initial config */
1835 	ahci_pci_save_initial_config(pdev, hpriv);
1836 
1837 	/* prepare host */
1838 	if (hpriv->cap & HOST_CAP_NCQ) {
1839 		pi.flags |= ATA_FLAG_NCQ;
1840 		/*
1841 		 * Auto-activate optimization is supposed to be
1842 		 * supported on all AHCI controllers indicating NCQ
1843 		 * capability, but it seems to be broken on some
1844 		 * chipsets including NVIDIAs.
1845 		 */
1846 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1847 			pi.flags |= ATA_FLAG_FPDMA_AA;
1848 
1849 		/*
1850 		 * All AHCI controllers should be forward-compatible
1851 		 * with the new auxiliary field. This code should be
1852 		 * conditionalized if any buggy AHCI controllers are
1853 		 * encountered.
1854 		 */
1855 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1856 	}
1857 
1858 	if (hpriv->cap & HOST_CAP_PMP)
1859 		pi.flags |= ATA_FLAG_PMP;
1860 
1861 	ahci_set_em_messages(hpriv, &pi);
1862 
1863 	if (ahci_broken_system_poweroff(pdev)) {
1864 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1865 		dev_info(&pdev->dev,
1866 			"quirky BIOS, skipping spindown on poweroff\n");
1867 	}
1868 
1869 	if (ahci_broken_lpm(pdev)) {
1870 		pi.flags |= ATA_FLAG_NO_LPM;
1871 		dev_warn(&pdev->dev,
1872 			 "BIOS update required for Link Power Management support\n");
1873 	}
1874 
1875 	if (ahci_broken_suspend(pdev)) {
1876 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1877 		dev_warn(&pdev->dev,
1878 			 "BIOS update required for suspend/resume\n");
1879 	}
1880 
1881 	if (ahci_broken_online(pdev)) {
1882 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1883 		dev_info(&pdev->dev,
1884 			 "online status unreliable, applying workaround\n");
1885 	}
1886 
1887 
1888 	/* Acer SA5-271 workaround modifies private_data */
1889 	acer_sa5_271_workaround(hpriv, pdev);
1890 
1891 	/* CAP.NP sometimes indicate the index of the last enabled
1892 	 * port, at other times, that of the last possible port, so
1893 	 * determining the maximum port number requires looking at
1894 	 * both CAP.NP and port_map.
1895 	 */
1896 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1897 
1898 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1899 	if (!host)
1900 		return -ENOMEM;
1901 	host->private_data = hpriv;
1902 
1903 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1904 		/* legacy intx interrupts */
1905 		pci_intx(pdev, 1);
1906 	}
1907 	hpriv->irq = pci_irq_vector(pdev, 0);
1908 
1909 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1910 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1911 	else
1912 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1913 
1914 	if (!(hpriv->cap & HOST_CAP_PART))
1915 		host->flags |= ATA_HOST_NO_PART;
1916 
1917 	if (!(hpriv->cap & HOST_CAP_SSC))
1918 		host->flags |= ATA_HOST_NO_SSC;
1919 
1920 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
1921 		host->flags |= ATA_HOST_NO_DEVSLP;
1922 
1923 	if (pi.flags & ATA_FLAG_EM)
1924 		ahci_reset_em(host);
1925 
1926 	for (i = 0; i < host->n_ports; i++) {
1927 		struct ata_port *ap = host->ports[i];
1928 
1929 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1930 		ata_port_pbar_desc(ap, ahci_pci_bar,
1931 				   0x100 + ap->port_no * 0x80, "port");
1932 
1933 		/* set enclosure management message type */
1934 		if (ap->flags & ATA_FLAG_EM)
1935 			ap->em_message_type = hpriv->em_msg_type;
1936 
1937 		ahci_update_initial_lpm_policy(ap, hpriv);
1938 
1939 		/* disabled/not-implemented port */
1940 		if (!(hpriv->port_map & (1 << i)))
1941 			ap->ops = &ata_dummy_port_ops;
1942 	}
1943 
1944 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1945 	ahci_p5wdh_workaround(host);
1946 
1947 	/* apply gtf filter quirk */
1948 	ahci_gtf_filter_workaround(host);
1949 
1950 	/* initialize adapter */
1951 	rc = ahci_configure_dma_masks(pdev, hpriv);
1952 	if (rc)
1953 		return rc;
1954 
1955 	rc = ahci_pci_reset_controller(host);
1956 	if (rc)
1957 		return rc;
1958 
1959 	ahci_pci_init_controller(host);
1960 	ahci_pci_print_info(host);
1961 
1962 	pci_set_master(pdev);
1963 
1964 	rc = ahci_host_activate(host, &ahci_sht);
1965 	if (rc)
1966 		return rc;
1967 
1968 	pm_runtime_put_noidle(&pdev->dev);
1969 	return 0;
1970 }
1971 
1972 static void ahci_shutdown_one(struct pci_dev *pdev)
1973 {
1974 	ata_pci_shutdown_one(pdev);
1975 }
1976 
1977 static void ahci_remove_one(struct pci_dev *pdev)
1978 {
1979 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1980 				     &dev_attr_remapped_nvme.attr,
1981 				     NULL);
1982 	pm_runtime_get_noresume(&pdev->dev);
1983 	ata_pci_remove_one(pdev);
1984 }
1985 
1986 module_pci_driver(ahci_pci_driver);
1987 
1988 MODULE_AUTHOR("Jeff Garzik");
1989 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1990 MODULE_LICENSE("GPL");
1991 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1992 MODULE_VERSION(DRV_VERSION);
1993