xref: /openbmc/linux/drivers/ata/ahci.c (revision 8ec90bfd)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  ahci.c - AHCI SATA support
4  *
5  *  Maintained by:  Tejun Heo <tj@kernel.org>
6  *    		    Please ALWAYS copy linux-ide@vger.kernel.org
7  *		    on emails.
8  *
9  *  Copyright 2004-2005 Red Hat, Inc.
10  *
11  * libata documentation is available via 'make {ps|pdf}docs',
12  * as Documentation/driver-api/libata.rst
13  *
14  * AHCI hardware documentation:
15  * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
16  * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
17  */
18 
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/pci.h>
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/device.h>
27 #include <linux/dmi.h>
28 #include <linux/gfp.h>
29 #include <linux/msi.h>
30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_cmnd.h>
32 #include <linux/libata.h>
33 #include <linux/ahci-remap.h>
34 #include <linux/io-64-nonatomic-lo-hi.h>
35 #include "ahci.h"
36 
37 #define DRV_NAME	"ahci"
38 #define DRV_VERSION	"3.0"
39 
40 enum {
41 	AHCI_PCI_BAR_STA2X11	= 0,
42 	AHCI_PCI_BAR_CAVIUM	= 0,
43 	AHCI_PCI_BAR_LOONGSON	= 0,
44 	AHCI_PCI_BAR_ENMOTUS	= 2,
45 	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
46 	AHCI_PCI_BAR_STANDARD	= 5,
47 };
48 
49 enum board_ids {
50 	/* board IDs by feature in alphabetical order */
51 	board_ahci,
52 	board_ahci_ign_iferr,
53 	board_ahci_mobile,
54 	board_ahci_nomsi,
55 	board_ahci_noncq,
56 	board_ahci_nosntf,
57 	board_ahci_yes_fbs,
58 
59 	/* board IDs for specific chipsets in alphabetical order */
60 	board_ahci_al,
61 	board_ahci_avn,
62 	board_ahci_mcp65,
63 	board_ahci_mcp77,
64 	board_ahci_mcp89,
65 	board_ahci_mv,
66 	board_ahci_sb600,
67 	board_ahci_sb700,	/* for SB700 and SB800 */
68 	board_ahci_vt8251,
69 
70 	/*
71 	 * board IDs for Intel chipsets that support more than 6 ports
72 	 * *and* end up needing the PCS quirk.
73 	 */
74 	board_ahci_pcs7,
75 
76 	/* aliases */
77 	board_ahci_mcp_linux	= board_ahci_mcp65,
78 	board_ahci_mcp67	= board_ahci_mcp65,
79 	board_ahci_mcp73	= board_ahci_mcp65,
80 	board_ahci_mcp79	= board_ahci_mcp77,
81 };
82 
83 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
84 static void ahci_remove_one(struct pci_dev *dev);
85 static void ahci_shutdown_one(struct pci_dev *dev);
86 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
87 				 unsigned long deadline);
88 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
89 			      unsigned long deadline);
90 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
91 static bool is_mcp89_apple(struct pci_dev *pdev);
92 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
93 				unsigned long deadline);
94 #ifdef CONFIG_PM
95 static int ahci_pci_device_runtime_suspend(struct device *dev);
96 static int ahci_pci_device_runtime_resume(struct device *dev);
97 #ifdef CONFIG_PM_SLEEP
98 static int ahci_pci_device_suspend(struct device *dev);
99 static int ahci_pci_device_resume(struct device *dev);
100 #endif
101 #endif /* CONFIG_PM */
102 
103 static struct scsi_host_template ahci_sht = {
104 	AHCI_SHT("ahci"),
105 };
106 
107 static struct ata_port_operations ahci_vt8251_ops = {
108 	.inherits		= &ahci_ops,
109 	.hardreset		= ahci_vt8251_hardreset,
110 };
111 
112 static struct ata_port_operations ahci_p5wdh_ops = {
113 	.inherits		= &ahci_ops,
114 	.hardreset		= ahci_p5wdh_hardreset,
115 };
116 
117 static struct ata_port_operations ahci_avn_ops = {
118 	.inherits		= &ahci_ops,
119 	.hardreset		= ahci_avn_hardreset,
120 };
121 
122 static const struct ata_port_info ahci_port_info[] = {
123 	/* by features */
124 	[board_ahci] = {
125 		.flags		= AHCI_FLAG_COMMON,
126 		.pio_mask	= ATA_PIO4,
127 		.udma_mask	= ATA_UDMA6,
128 		.port_ops	= &ahci_ops,
129 	},
130 	[board_ahci_ign_iferr] = {
131 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
132 		.flags		= AHCI_FLAG_COMMON,
133 		.pio_mask	= ATA_PIO4,
134 		.udma_mask	= ATA_UDMA6,
135 		.port_ops	= &ahci_ops,
136 	},
137 	[board_ahci_mobile] = {
138 		AHCI_HFLAGS	(AHCI_HFLAG_IS_MOBILE),
139 		.flags		= AHCI_FLAG_COMMON,
140 		.pio_mask	= ATA_PIO4,
141 		.udma_mask	= ATA_UDMA6,
142 		.port_ops	= &ahci_ops,
143 	},
144 	[board_ahci_nomsi] = {
145 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
146 		.flags		= AHCI_FLAG_COMMON,
147 		.pio_mask	= ATA_PIO4,
148 		.udma_mask	= ATA_UDMA6,
149 		.port_ops	= &ahci_ops,
150 	},
151 	[board_ahci_noncq] = {
152 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
153 		.flags		= AHCI_FLAG_COMMON,
154 		.pio_mask	= ATA_PIO4,
155 		.udma_mask	= ATA_UDMA6,
156 		.port_ops	= &ahci_ops,
157 	},
158 	[board_ahci_nosntf] = {
159 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
160 		.flags		= AHCI_FLAG_COMMON,
161 		.pio_mask	= ATA_PIO4,
162 		.udma_mask	= ATA_UDMA6,
163 		.port_ops	= &ahci_ops,
164 	},
165 	[board_ahci_yes_fbs] = {
166 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
167 		.flags		= AHCI_FLAG_COMMON,
168 		.pio_mask	= ATA_PIO4,
169 		.udma_mask	= ATA_UDMA6,
170 		.port_ops	= &ahci_ops,
171 	},
172 	/* by chipsets */
173 	[board_ahci_al] = {
174 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
175 		.flags		= AHCI_FLAG_COMMON,
176 		.pio_mask	= ATA_PIO4,
177 		.udma_mask	= ATA_UDMA6,
178 		.port_ops	= &ahci_ops,
179 	},
180 	[board_ahci_avn] = {
181 		.flags		= AHCI_FLAG_COMMON,
182 		.pio_mask	= ATA_PIO4,
183 		.udma_mask	= ATA_UDMA6,
184 		.port_ops	= &ahci_avn_ops,
185 	},
186 	[board_ahci_mcp65] = {
187 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
188 				 AHCI_HFLAG_YES_NCQ),
189 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
190 		.pio_mask	= ATA_PIO4,
191 		.udma_mask	= ATA_UDMA6,
192 		.port_ops	= &ahci_ops,
193 	},
194 	[board_ahci_mcp77] = {
195 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
196 		.flags		= AHCI_FLAG_COMMON,
197 		.pio_mask	= ATA_PIO4,
198 		.udma_mask	= ATA_UDMA6,
199 		.port_ops	= &ahci_ops,
200 	},
201 	[board_ahci_mcp89] = {
202 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
203 		.flags		= AHCI_FLAG_COMMON,
204 		.pio_mask	= ATA_PIO4,
205 		.udma_mask	= ATA_UDMA6,
206 		.port_ops	= &ahci_ops,
207 	},
208 	[board_ahci_mv] = {
209 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
210 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
211 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
212 		.pio_mask	= ATA_PIO4,
213 		.udma_mask	= ATA_UDMA6,
214 		.port_ops	= &ahci_ops,
215 	},
216 	[board_ahci_sb600] = {
217 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
218 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
219 				 AHCI_HFLAG_32BIT_ONLY),
220 		.flags		= AHCI_FLAG_COMMON,
221 		.pio_mask	= ATA_PIO4,
222 		.udma_mask	= ATA_UDMA6,
223 		.port_ops	= &ahci_pmp_retry_srst_ops,
224 	},
225 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
226 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
227 		.flags		= AHCI_FLAG_COMMON,
228 		.pio_mask	= ATA_PIO4,
229 		.udma_mask	= ATA_UDMA6,
230 		.port_ops	= &ahci_pmp_retry_srst_ops,
231 	},
232 	[board_ahci_vt8251] = {
233 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
234 		.flags		= AHCI_FLAG_COMMON,
235 		.pio_mask	= ATA_PIO4,
236 		.udma_mask	= ATA_UDMA6,
237 		.port_ops	= &ahci_vt8251_ops,
238 	},
239 	[board_ahci_pcs7] = {
240 		.flags		= AHCI_FLAG_COMMON,
241 		.pio_mask	= ATA_PIO4,
242 		.udma_mask	= ATA_UDMA6,
243 		.port_ops	= &ahci_ops,
244 	},
245 };
246 
247 static const struct pci_device_id ahci_pci_tbl[] = {
248 	/* Intel */
249 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
250 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
251 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
252 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
253 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
254 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
255 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
256 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
257 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
258 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
259 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
260 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
261 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
262 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
263 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
264 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
265 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
266 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
267 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
268 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
269 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
270 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_mobile }, /* ICH9M */
271 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_mobile }, /* ICH9M */
272 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_mobile }, /* ICH9M */
273 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_mobile }, /* ICH9M */
274 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_mobile }, /* ICH9M */
275 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
276 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_mobile }, /* ICH9M */
277 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
278 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
279 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
280 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
281 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
282 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
283 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
284 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
285 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
286 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_mobile }, /* PCH M AHCI */
287 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
288 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_mobile }, /* PCH M RAID */
289 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
290 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
291 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
292 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
293 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
294 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
295 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
296 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
297 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
302 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_mobile }, /* CPT M AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
313 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_mobile }, /* CPT M RAID */
314 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
315 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
316 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
318 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
319 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
320 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
321 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
322 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_mobile }, /* Panther M AHCI */
323 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
324 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
325 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
326 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_mobile }, /* Panther M RAID */
327 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
328 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
329 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_mobile }, /* Lynx M AHCI */
330 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
331 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_mobile }, /* Lynx M RAID */
332 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
333 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_mobile }, /* Lynx M RAID */
334 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
335 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_mobile }, /* Lynx M RAID */
336 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_mobile }, /* Lynx LP AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_mobile }, /* Lynx LP AHCI */
338 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_mobile }, /* Lynx LP RAID */
339 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_mobile }, /* Lynx LP RAID */
340 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_mobile }, /* Lynx LP RAID */
341 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_mobile }, /* Lynx LP RAID */
342 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_mobile }, /* Lynx LP RAID */
343 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_mobile }, /* Lynx LP RAID */
344 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_mobile }, /* Cannon Lake PCH-LP AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
346 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
347 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
348 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
349 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
350 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
351 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
352 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
353 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
354 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
355 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
356 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
357 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
358 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
359 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
360 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
361 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
362 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
363 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
364 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
365 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
366 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
367 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
368 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
369 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
370 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
371 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
372 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_mobile }, /* Wildcat LP AHCI */
373 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_mobile }, /* Wildcat LP RAID */
374 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_mobile }, /* Wildcat LP RAID */
375 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_mobile }, /* Wildcat LP RAID */
376 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
377 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_mobile }, /* 9 Series M AHCI */
378 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
379 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_mobile }, /* 9 Series M RAID */
380 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
381 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_mobile }, /* 9 Series M RAID */
382 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
383 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_mobile }, /* 9 Series M RAID */
384 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_mobile }, /* Sunrise LP AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_mobile }, /* Sunrise LP RAID */
386 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_mobile }, /* Sunrise LP RAID */
387 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
388 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_mobile }, /* Sunrise M AHCI */
389 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
390 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
391 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
392 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
393 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
394 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
395 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
396 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
397 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
398 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
399 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
400 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
401 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
402 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
403 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
404 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
405 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
406 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
407 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
408 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_mobile }, /* Bay Trail AHCI */
409 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_mobile }, /* Bay Trail AHCI */
410 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_mobile }, /* Cherry Tr. AHCI */
411 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_mobile }, /* ApolloLake AHCI */
412 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_mobile }, /* Ice Lake LP AHCI */
413 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_mobile }, /* Comet Lake PCH-U AHCI */
414 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_mobile }, /* Comet Lake PCH RAID */
415 
416 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
417 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
418 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
419 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
420 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
421 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
422 	/* May need to update quirk_jmicron_async_suspend() for additions */
423 
424 	/* ATI */
425 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
426 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
427 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
428 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
429 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
430 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
431 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
432 
433 	/* Amazon's Annapurna Labs support */
434 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
435 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
436 		.class_mask = 0xffffff,
437 		board_ahci_al },
438 	/* AMD */
439 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
440 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
441 	/* AMD is using RAID class only for ahci controllers */
442 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
443 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
444 
445 	/* VIA */
446 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
447 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
448 
449 	/* NVIDIA */
450 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
451 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
452 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
453 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
454 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
455 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
456 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
457 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
458 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
459 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
460 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
461 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
462 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
463 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
464 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
465 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
466 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
467 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
468 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
469 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
470 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
471 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
472 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
473 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
474 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
475 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
476 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
477 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
478 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
479 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
480 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
481 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
482 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
483 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
484 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
485 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
486 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
487 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
488 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
489 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
490 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
491 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
492 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
493 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
494 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
495 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
496 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
497 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
498 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
499 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
500 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
501 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
502 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
503 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
504 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
505 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
506 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
507 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
508 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
509 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
510 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
511 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
512 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
513 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
514 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
515 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
516 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
517 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
518 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
519 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
520 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
534 
535 	/* SiS */
536 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
537 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
538 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
539 
540 	/* ST Microelectronics */
541 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
542 
543 	/* Marvell */
544 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
545 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
546 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
547 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
548 	  .class_mask = 0xffffff,
549 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
550 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
551 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
552 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
553 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
554 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
555 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
556 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
557 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
558 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
559 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
560 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
561 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
562 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
563 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
564 	  .driver_data = board_ahci_yes_fbs },
565 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
566 	  .driver_data = board_ahci_yes_fbs },
567 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
568 	  .driver_data = board_ahci_yes_fbs },
569 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
570 	  .driver_data = board_ahci_yes_fbs },
571 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
572 	  .driver_data = board_ahci_yes_fbs },
573 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
574 	  .driver_data = board_ahci_yes_fbs },
575 
576 	/* Promise */
577 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
578 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
579 
580 	/* Asmedia */
581 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
582 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
583 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
584 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
585 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
586 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
587 
588 	/*
589 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
590 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
591 	 */
592 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
593 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
594 
595 	/* Enmotus */
596 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
597 
598 	/* Loongson */
599 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
600 
601 	/* Generic, PCI class code for AHCI */
602 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
603 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
604 
605 	{ }	/* terminate list */
606 };
607 
608 static const struct dev_pm_ops ahci_pci_pm_ops = {
609 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
610 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
611 			   ahci_pci_device_runtime_resume, NULL)
612 };
613 
614 static struct pci_driver ahci_pci_driver = {
615 	.name			= DRV_NAME,
616 	.id_table		= ahci_pci_tbl,
617 	.probe			= ahci_init_one,
618 	.remove			= ahci_remove_one,
619 	.shutdown		= ahci_shutdown_one,
620 	.driver = {
621 		.pm		= &ahci_pci_pm_ops,
622 	},
623 };
624 
625 #if IS_ENABLED(CONFIG_PATA_MARVELL)
626 static int marvell_enable;
627 #else
628 static int marvell_enable = 1;
629 #endif
630 module_param(marvell_enable, int, 0644);
631 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
632 
633 static int mobile_lpm_policy = -1;
634 module_param(mobile_lpm_policy, int, 0644);
635 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
636 
637 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
638 					 struct ahci_host_priv *hpriv)
639 {
640 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
641 		dev_info(&pdev->dev, "JMB361 has only one port\n");
642 		hpriv->force_port_map = 1;
643 	}
644 
645 	/*
646 	 * Temporary Marvell 6145 hack: PATA port presence
647 	 * is asserted through the standard AHCI port
648 	 * presence register, as bit 4 (counting from 0)
649 	 */
650 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
651 		if (pdev->device == 0x6121)
652 			hpriv->mask_port_map = 0x3;
653 		else
654 			hpriv->mask_port_map = 0xf;
655 		dev_info(&pdev->dev,
656 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
657 	}
658 
659 	ahci_save_initial_config(&pdev->dev, hpriv);
660 }
661 
662 static void ahci_pci_init_controller(struct ata_host *host)
663 {
664 	struct ahci_host_priv *hpriv = host->private_data;
665 	struct pci_dev *pdev = to_pci_dev(host->dev);
666 	void __iomem *port_mmio;
667 	u32 tmp;
668 	int mv;
669 
670 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
671 		if (pdev->device == 0x6121)
672 			mv = 2;
673 		else
674 			mv = 4;
675 		port_mmio = __ahci_port_base(host, mv);
676 
677 		writel(0, port_mmio + PORT_IRQ_MASK);
678 
679 		/* clear port IRQ */
680 		tmp = readl(port_mmio + PORT_IRQ_STAT);
681 		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
682 		if (tmp)
683 			writel(tmp, port_mmio + PORT_IRQ_STAT);
684 	}
685 
686 	ahci_init_controller(host);
687 }
688 
689 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
690 				 unsigned long deadline)
691 {
692 	struct ata_port *ap = link->ap;
693 	struct ahci_host_priv *hpriv = ap->host->private_data;
694 	bool online;
695 	int rc;
696 
697 	DPRINTK("ENTER\n");
698 
699 	hpriv->stop_engine(ap);
700 
701 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
702 				 deadline, &online, NULL);
703 
704 	hpriv->start_engine(ap);
705 
706 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
707 
708 	/* vt8251 doesn't clear BSY on signature FIS reception,
709 	 * request follow-up softreset.
710 	 */
711 	return online ? -EAGAIN : rc;
712 }
713 
714 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
715 				unsigned long deadline)
716 {
717 	struct ata_port *ap = link->ap;
718 	struct ahci_port_priv *pp = ap->private_data;
719 	struct ahci_host_priv *hpriv = ap->host->private_data;
720 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
721 	struct ata_taskfile tf;
722 	bool online;
723 	int rc;
724 
725 	hpriv->stop_engine(ap);
726 
727 	/* clear D2H reception area to properly wait for D2H FIS */
728 	ata_tf_init(link->device, &tf);
729 	tf.command = ATA_BUSY;
730 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
731 
732 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
733 				 deadline, &online, NULL);
734 
735 	hpriv->start_engine(ap);
736 
737 	/* The pseudo configuration device on SIMG4726 attached to
738 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
739 	 * hardreset if no device is attached to the first downstream
740 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
741 	 * work around this, wait for !BSY only briefly.  If BSY isn't
742 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
743 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
744 	 *
745 	 * Wait for two seconds.  Devices attached to downstream port
746 	 * which can't process the following IDENTIFY after this will
747 	 * have to be reset again.  For most cases, this should
748 	 * suffice while making probing snappish enough.
749 	 */
750 	if (online) {
751 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
752 					  ahci_check_ready);
753 		if (rc)
754 			ahci_kick_engine(ap);
755 	}
756 	return rc;
757 }
758 
759 /*
760  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
761  *
762  * It has been observed with some SSDs that the timing of events in the
763  * link synchronization phase can leave the port in a state that can not
764  * be recovered by a SATA-hard-reset alone.  The failing signature is
765  * SStatus.DET stuck at 1 ("Device presence detected but Phy
766  * communication not established").  It was found that unloading and
767  * reloading the driver when this problem occurs allows the drive
768  * connection to be recovered (DET advanced to 0x3).  The critical
769  * component of reloading the driver is that the port state machines are
770  * reset by bouncing "port enable" in the AHCI PCS configuration
771  * register.  So, reproduce that effect by bouncing a port whenever we
772  * see DET==1 after a reset.
773  */
774 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
775 			      unsigned long deadline)
776 {
777 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
778 	struct ata_port *ap = link->ap;
779 	struct ahci_port_priv *pp = ap->private_data;
780 	struct ahci_host_priv *hpriv = ap->host->private_data;
781 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
782 	unsigned long tmo = deadline - jiffies;
783 	struct ata_taskfile tf;
784 	bool online;
785 	int rc, i;
786 
787 	DPRINTK("ENTER\n");
788 
789 	hpriv->stop_engine(ap);
790 
791 	for (i = 0; i < 2; i++) {
792 		u16 val;
793 		u32 sstatus;
794 		int port = ap->port_no;
795 		struct ata_host *host = ap->host;
796 		struct pci_dev *pdev = to_pci_dev(host->dev);
797 
798 		/* clear D2H reception area to properly wait for D2H FIS */
799 		ata_tf_init(link->device, &tf);
800 		tf.command = ATA_BUSY;
801 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
802 
803 		rc = sata_link_hardreset(link, timing, deadline, &online,
804 				ahci_check_ready);
805 
806 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
807 				(sstatus & 0xf) != 1)
808 			break;
809 
810 		ata_link_printk(link, KERN_INFO, "avn bounce port%d\n",
811 				port);
812 
813 		pci_read_config_word(pdev, 0x92, &val);
814 		val &= ~(1 << port);
815 		pci_write_config_word(pdev, 0x92, val);
816 		ata_msleep(ap, 1000);
817 		val |= 1 << port;
818 		pci_write_config_word(pdev, 0x92, val);
819 		deadline += tmo;
820 	}
821 
822 	hpriv->start_engine(ap);
823 
824 	if (online)
825 		*class = ahci_dev_classify(ap);
826 
827 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
828 	return rc;
829 }
830 
831 
832 #ifdef CONFIG_PM
833 static void ahci_pci_disable_interrupts(struct ata_host *host)
834 {
835 	struct ahci_host_priv *hpriv = host->private_data;
836 	void __iomem *mmio = hpriv->mmio;
837 	u32 ctl;
838 
839 	/* AHCI spec rev1.1 section 8.3.3:
840 	 * Software must disable interrupts prior to requesting a
841 	 * transition of the HBA to D3 state.
842 	 */
843 	ctl = readl(mmio + HOST_CTL);
844 	ctl &= ~HOST_IRQ_EN;
845 	writel(ctl, mmio + HOST_CTL);
846 	readl(mmio + HOST_CTL); /* flush */
847 }
848 
849 static int ahci_pci_device_runtime_suspend(struct device *dev)
850 {
851 	struct pci_dev *pdev = to_pci_dev(dev);
852 	struct ata_host *host = pci_get_drvdata(pdev);
853 
854 	ahci_pci_disable_interrupts(host);
855 	return 0;
856 }
857 
858 static int ahci_pci_device_runtime_resume(struct device *dev)
859 {
860 	struct pci_dev *pdev = to_pci_dev(dev);
861 	struct ata_host *host = pci_get_drvdata(pdev);
862 	int rc;
863 
864 	rc = ahci_reset_controller(host);
865 	if (rc)
866 		return rc;
867 	ahci_pci_init_controller(host);
868 	return 0;
869 }
870 
871 #ifdef CONFIG_PM_SLEEP
872 static int ahci_pci_device_suspend(struct device *dev)
873 {
874 	struct pci_dev *pdev = to_pci_dev(dev);
875 	struct ata_host *host = pci_get_drvdata(pdev);
876 	struct ahci_host_priv *hpriv = host->private_data;
877 
878 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
879 		dev_err(&pdev->dev,
880 			"BIOS update required for suspend/resume\n");
881 		return -EIO;
882 	}
883 
884 	ahci_pci_disable_interrupts(host);
885 	return ata_host_suspend(host, PMSG_SUSPEND);
886 }
887 
888 static int ahci_pci_device_resume(struct device *dev)
889 {
890 	struct pci_dev *pdev = to_pci_dev(dev);
891 	struct ata_host *host = pci_get_drvdata(pdev);
892 	int rc;
893 
894 	/* Apple BIOS helpfully mangles the registers on resume */
895 	if (is_mcp89_apple(pdev))
896 		ahci_mcp89_apple_enable(pdev);
897 
898 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
899 		rc = ahci_reset_controller(host);
900 		if (rc)
901 			return rc;
902 
903 		ahci_pci_init_controller(host);
904 	}
905 
906 	ata_host_resume(host);
907 
908 	return 0;
909 }
910 #endif
911 
912 #endif /* CONFIG_PM */
913 
914 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
915 {
916 	const int dma_bits = using_dac ? 64 : 32;
917 	int rc;
918 
919 	/*
920 	 * If the device fixup already set the dma_mask to some non-standard
921 	 * value, don't extend it here. This happens on STA2X11, for example.
922 	 *
923 	 * XXX: manipulating the DMA mask from platform code is completely
924 	 * bogus, platform code should use dev->bus_dma_limit instead..
925 	 */
926 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
927 		return 0;
928 
929 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
930 	if (rc)
931 		dev_err(&pdev->dev, "DMA enable failed\n");
932 	return rc;
933 }
934 
935 static void ahci_pci_print_info(struct ata_host *host)
936 {
937 	struct pci_dev *pdev = to_pci_dev(host->dev);
938 	u16 cc;
939 	const char *scc_s;
940 
941 	pci_read_config_word(pdev, 0x0a, &cc);
942 	if (cc == PCI_CLASS_STORAGE_IDE)
943 		scc_s = "IDE";
944 	else if (cc == PCI_CLASS_STORAGE_SATA)
945 		scc_s = "SATA";
946 	else if (cc == PCI_CLASS_STORAGE_RAID)
947 		scc_s = "RAID";
948 	else
949 		scc_s = "unknown";
950 
951 	ahci_print_info(host, scc_s);
952 }
953 
954 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
955  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
956  * support PMP and the 4726 either directly exports the device
957  * attached to the first downstream port or acts as a hardware storage
958  * controller and emulate a single ATA device (can be RAID 0/1 or some
959  * other configuration).
960  *
961  * When there's no device attached to the first downstream port of the
962  * 4726, "Config Disk" appears, which is a pseudo ATA device to
963  * configure the 4726.  However, ATA emulation of the device is very
964  * lame.  It doesn't send signature D2H Reg FIS after the initial
965  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
966  *
967  * The following function works around the problem by always using
968  * hardreset on the port and not depending on receiving signature FIS
969  * afterward.  If signature FIS isn't received soon, ATA class is
970  * assumed without follow-up softreset.
971  */
972 static void ahci_p5wdh_workaround(struct ata_host *host)
973 {
974 	static const struct dmi_system_id sysids[] = {
975 		{
976 			.ident = "P5W DH Deluxe",
977 			.matches = {
978 				DMI_MATCH(DMI_SYS_VENDOR,
979 					  "ASUSTEK COMPUTER INC"),
980 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
981 			},
982 		},
983 		{ }
984 	};
985 	struct pci_dev *pdev = to_pci_dev(host->dev);
986 
987 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
988 	    dmi_check_system(sysids)) {
989 		struct ata_port *ap = host->ports[1];
990 
991 		dev_info(&pdev->dev,
992 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
993 
994 		ap->ops = &ahci_p5wdh_ops;
995 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
996 	}
997 }
998 
999 /*
1000  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1001  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1002  */
1003 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1004 {
1005 	u32 val;
1006 
1007 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1008 
1009 	pci_read_config_dword(pdev, 0xf8, &val);
1010 	val |= 1 << 0x1b;
1011 	/* the following changes the device ID, but appears not to affect function */
1012 	/* val = (val & ~0xf0000000) | 0x80000000; */
1013 	pci_write_config_dword(pdev, 0xf8, val);
1014 
1015 	pci_read_config_dword(pdev, 0x54c, &val);
1016 	val |= 1 << 0xc;
1017 	pci_write_config_dword(pdev, 0x54c, val);
1018 
1019 	pci_read_config_dword(pdev, 0x4a4, &val);
1020 	val &= 0xff;
1021 	val |= 0x01060100;
1022 	pci_write_config_dword(pdev, 0x4a4, val);
1023 
1024 	pci_read_config_dword(pdev, 0x54c, &val);
1025 	val &= ~(1 << 0xc);
1026 	pci_write_config_dword(pdev, 0x54c, val);
1027 
1028 	pci_read_config_dword(pdev, 0xf8, &val);
1029 	val &= ~(1 << 0x1b);
1030 	pci_write_config_dword(pdev, 0xf8, val);
1031 }
1032 
1033 static bool is_mcp89_apple(struct pci_dev *pdev)
1034 {
1035 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1036 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1037 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1038 		pdev->subsystem_device == 0xcb89;
1039 }
1040 
1041 /* only some SB600 ahci controllers can do 64bit DMA */
1042 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1043 {
1044 	static const struct dmi_system_id sysids[] = {
1045 		/*
1046 		 * The oldest version known to be broken is 0901 and
1047 		 * working is 1501 which was released on 2007-10-26.
1048 		 * Enable 64bit DMA on 1501 and anything newer.
1049 		 *
1050 		 * Please read bko#9412 for more info.
1051 		 */
1052 		{
1053 			.ident = "ASUS M2A-VM",
1054 			.matches = {
1055 				DMI_MATCH(DMI_BOARD_VENDOR,
1056 					  "ASUSTeK Computer INC."),
1057 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1058 			},
1059 			.driver_data = "20071026",	/* yyyymmdd */
1060 		},
1061 		/*
1062 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1063 		 * support 64bit DMA.
1064 		 *
1065 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1066 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1067 		 * This spelling mistake was fixed in BIOS version 1.5, so
1068 		 * 1.5 and later have the Manufacturer as
1069 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1070 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1071 		 *
1072 		 * BIOS versions earlier than 1.9 had a Board Product Name
1073 		 * DMI field of "MS-7376". This was changed to be
1074 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1075 		 * match on DMI_BOARD_NAME of "MS-7376".
1076 		 */
1077 		{
1078 			.ident = "MSI K9A2 Platinum",
1079 			.matches = {
1080 				DMI_MATCH(DMI_BOARD_VENDOR,
1081 					  "MICRO-STAR INTER"),
1082 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1083 			},
1084 		},
1085 		/*
1086 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1087 		 * 64bit DMA.
1088 		 *
1089 		 * This board also had the typo mentioned above in the
1090 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1091 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1092 		 */
1093 		{
1094 			.ident = "MSI K9AGM2",
1095 			.matches = {
1096 				DMI_MATCH(DMI_BOARD_VENDOR,
1097 					  "MICRO-STAR INTER"),
1098 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1099 			},
1100 		},
1101 		/*
1102 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1103 		 * (all release versions from 0301 to 1206 were tested)
1104 		 */
1105 		{
1106 			.ident = "ASUS M3A",
1107 			.matches = {
1108 				DMI_MATCH(DMI_BOARD_VENDOR,
1109 					  "ASUSTeK Computer INC."),
1110 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1111 			},
1112 		},
1113 		{ }
1114 	};
1115 	const struct dmi_system_id *match;
1116 	int year, month, date;
1117 	char buf[9];
1118 
1119 	match = dmi_first_match(sysids);
1120 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1121 	    !match)
1122 		return false;
1123 
1124 	if (!match->driver_data)
1125 		goto enable_64bit;
1126 
1127 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1128 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1129 
1130 	if (strcmp(buf, match->driver_data) >= 0)
1131 		goto enable_64bit;
1132 	else {
1133 		dev_warn(&pdev->dev,
1134 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1135 			 match->ident);
1136 		return false;
1137 	}
1138 
1139 enable_64bit:
1140 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1141 	return true;
1142 }
1143 
1144 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1145 {
1146 	static const struct dmi_system_id broken_systems[] = {
1147 		{
1148 			.ident = "HP Compaq nx6310",
1149 			.matches = {
1150 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1151 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1152 			},
1153 			/* PCI slot number of the controller */
1154 			.driver_data = (void *)0x1FUL,
1155 		},
1156 		{
1157 			.ident = "HP Compaq 6720s",
1158 			.matches = {
1159 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1160 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1161 			},
1162 			/* PCI slot number of the controller */
1163 			.driver_data = (void *)0x1FUL,
1164 		},
1165 
1166 		{ }	/* terminate list */
1167 	};
1168 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1169 
1170 	if (dmi) {
1171 		unsigned long slot = (unsigned long)dmi->driver_data;
1172 		/* apply the quirk only to on-board controllers */
1173 		return slot == PCI_SLOT(pdev->devfn);
1174 	}
1175 
1176 	return false;
1177 }
1178 
1179 static bool ahci_broken_suspend(struct pci_dev *pdev)
1180 {
1181 	static const struct dmi_system_id sysids[] = {
1182 		/*
1183 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1184 		 * to the harddisk doesn't become online after
1185 		 * resuming from STR.  Warn and fail suspend.
1186 		 *
1187 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1188 		 *
1189 		 * Use dates instead of versions to match as HP is
1190 		 * apparently recycling both product and version
1191 		 * strings.
1192 		 *
1193 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1194 		 */
1195 		{
1196 			.ident = "dv4",
1197 			.matches = {
1198 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1199 				DMI_MATCH(DMI_PRODUCT_NAME,
1200 					  "HP Pavilion dv4 Notebook PC"),
1201 			},
1202 			.driver_data = "20090105",	/* F.30 */
1203 		},
1204 		{
1205 			.ident = "dv5",
1206 			.matches = {
1207 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1208 				DMI_MATCH(DMI_PRODUCT_NAME,
1209 					  "HP Pavilion dv5 Notebook PC"),
1210 			},
1211 			.driver_data = "20090506",	/* F.16 */
1212 		},
1213 		{
1214 			.ident = "dv6",
1215 			.matches = {
1216 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1217 				DMI_MATCH(DMI_PRODUCT_NAME,
1218 					  "HP Pavilion dv6 Notebook PC"),
1219 			},
1220 			.driver_data = "20090423",	/* F.21 */
1221 		},
1222 		{
1223 			.ident = "HDX18",
1224 			.matches = {
1225 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1226 				DMI_MATCH(DMI_PRODUCT_NAME,
1227 					  "HP HDX18 Notebook PC"),
1228 			},
1229 			.driver_data = "20090430",	/* F.23 */
1230 		},
1231 		/*
1232 		 * Acer eMachines G725 has the same problem.  BIOS
1233 		 * V1.03 is known to be broken.  V3.04 is known to
1234 		 * work.  Between, there are V1.06, V2.06 and V3.03
1235 		 * that we don't have much idea about.  For now,
1236 		 * blacklist anything older than V3.04.
1237 		 *
1238 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1239 		 */
1240 		{
1241 			.ident = "G725",
1242 			.matches = {
1243 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1244 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1245 			},
1246 			.driver_data = "20091216",	/* V3.04 */
1247 		},
1248 		{ }	/* terminate list */
1249 	};
1250 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1251 	int year, month, date;
1252 	char buf[9];
1253 
1254 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1255 		return false;
1256 
1257 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1258 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1259 
1260 	return strcmp(buf, dmi->driver_data) < 0;
1261 }
1262 
1263 static bool ahci_broken_lpm(struct pci_dev *pdev)
1264 {
1265 	static const struct dmi_system_id sysids[] = {
1266 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1267 		{
1268 			.matches = {
1269 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1270 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1271 			},
1272 			.driver_data = "20180406", /* 1.31 */
1273 		},
1274 		{
1275 			.matches = {
1276 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1277 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1278 			},
1279 			.driver_data = "20180420", /* 1.28 */
1280 		},
1281 		{
1282 			.matches = {
1283 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1284 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1285 			},
1286 			.driver_data = "20180315", /* 1.33 */
1287 		},
1288 		{
1289 			.matches = {
1290 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1291 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1292 			},
1293 			/*
1294 			 * Note date based on release notes, 2.35 has been
1295 			 * reported to be good, but I've been unable to get
1296 			 * a hold of the reporter to get the DMI BIOS date.
1297 			 * TODO: fix this.
1298 			 */
1299 			.driver_data = "20180310", /* 2.35 */
1300 		},
1301 		{ }	/* terminate list */
1302 	};
1303 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1304 	int year, month, date;
1305 	char buf[9];
1306 
1307 	if (!dmi)
1308 		return false;
1309 
1310 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1311 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1312 
1313 	return strcmp(buf, dmi->driver_data) < 0;
1314 }
1315 
1316 static bool ahci_broken_online(struct pci_dev *pdev)
1317 {
1318 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1319 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1320 	static const struct dmi_system_id sysids[] = {
1321 		/*
1322 		 * There are several gigabyte boards which use
1323 		 * SIMG5723s configured as hardware RAID.  Certain
1324 		 * 5723 firmware revisions shipped there keep the link
1325 		 * online but fail to answer properly to SRST or
1326 		 * IDENTIFY when no device is attached downstream
1327 		 * causing libata to retry quite a few times leading
1328 		 * to excessive detection delay.
1329 		 *
1330 		 * As these firmwares respond to the second reset try
1331 		 * with invalid device signature, considering unknown
1332 		 * sig as offline works around the problem acceptably.
1333 		 */
1334 		{
1335 			.ident = "EP45-DQ6",
1336 			.matches = {
1337 				DMI_MATCH(DMI_BOARD_VENDOR,
1338 					  "Gigabyte Technology Co., Ltd."),
1339 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1340 			},
1341 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1342 		},
1343 		{
1344 			.ident = "EP45-DS5",
1345 			.matches = {
1346 				DMI_MATCH(DMI_BOARD_VENDOR,
1347 					  "Gigabyte Technology Co., Ltd."),
1348 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1349 			},
1350 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1351 		},
1352 		{ }	/* terminate list */
1353 	};
1354 #undef ENCODE_BUSDEVFN
1355 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1356 	unsigned int val;
1357 
1358 	if (!dmi)
1359 		return false;
1360 
1361 	val = (unsigned long)dmi->driver_data;
1362 
1363 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1364 }
1365 
1366 static bool ahci_broken_devslp(struct pci_dev *pdev)
1367 {
1368 	/* device with broken DEVSLP but still showing SDS capability */
1369 	static const struct pci_device_id ids[] = {
1370 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1371 		{}
1372 	};
1373 
1374 	return pci_match_id(ids, pdev);
1375 }
1376 
1377 #ifdef CONFIG_ATA_ACPI
1378 static void ahci_gtf_filter_workaround(struct ata_host *host)
1379 {
1380 	static const struct dmi_system_id sysids[] = {
1381 		/*
1382 		 * Aspire 3810T issues a bunch of SATA enable commands
1383 		 * via _GTF including an invalid one and one which is
1384 		 * rejected by the device.  Among the successful ones
1385 		 * is FPDMA non-zero offset enable which when enabled
1386 		 * only on the drive side leads to NCQ command
1387 		 * failures.  Filter it out.
1388 		 */
1389 		{
1390 			.ident = "Aspire 3810T",
1391 			.matches = {
1392 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1393 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1394 			},
1395 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1396 		},
1397 		{ }
1398 	};
1399 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1400 	unsigned int filter;
1401 	int i;
1402 
1403 	if (!dmi)
1404 		return;
1405 
1406 	filter = (unsigned long)dmi->driver_data;
1407 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1408 		 filter, dmi->ident);
1409 
1410 	for (i = 0; i < host->n_ports; i++) {
1411 		struct ata_port *ap = host->ports[i];
1412 		struct ata_link *link;
1413 		struct ata_device *dev;
1414 
1415 		ata_for_each_link(link, ap, EDGE)
1416 			ata_for_each_dev(dev, link, ALL)
1417 				dev->gtf_filter |= filter;
1418 	}
1419 }
1420 #else
1421 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1422 {}
1423 #endif
1424 
1425 /*
1426  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1427  * as DUMMY, or detected but eventually get a "link down" and never get up
1428  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1429  * port_map may hold a value of 0x00.
1430  *
1431  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1432  * and can significantly reduce the occurrence of the problem.
1433  *
1434  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1435  */
1436 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1437 				    struct pci_dev *pdev)
1438 {
1439 	static const struct dmi_system_id sysids[] = {
1440 		{
1441 			.ident = "Acer Switch Alpha 12",
1442 			.matches = {
1443 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1444 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1445 			},
1446 		},
1447 		{ }
1448 	};
1449 
1450 	if (dmi_check_system(sysids)) {
1451 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1452 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1453 			hpriv->port_map = 0x7;
1454 			hpriv->cap = 0xC734FF02;
1455 		}
1456 	}
1457 }
1458 
1459 #ifdef CONFIG_ARM64
1460 /*
1461  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1462  * Workaround is to make sure all pending IRQs are served before leaving
1463  * handler.
1464  */
1465 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1466 {
1467 	struct ata_host *host = dev_instance;
1468 	struct ahci_host_priv *hpriv;
1469 	unsigned int rc = 0;
1470 	void __iomem *mmio;
1471 	u32 irq_stat, irq_masked;
1472 	unsigned int handled = 1;
1473 
1474 	VPRINTK("ENTER\n");
1475 	hpriv = host->private_data;
1476 	mmio = hpriv->mmio;
1477 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1478 	if (!irq_stat)
1479 		return IRQ_NONE;
1480 
1481 	do {
1482 		irq_masked = irq_stat & hpriv->port_map;
1483 		spin_lock(&host->lock);
1484 		rc = ahci_handle_port_intr(host, irq_masked);
1485 		if (!rc)
1486 			handled = 0;
1487 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1488 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1489 		spin_unlock(&host->lock);
1490 	} while (irq_stat);
1491 	VPRINTK("EXIT\n");
1492 
1493 	return IRQ_RETVAL(handled);
1494 }
1495 #endif
1496 
1497 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1498 		struct ahci_host_priv *hpriv)
1499 {
1500 	int i;
1501 	u32 cap;
1502 
1503 	/*
1504 	 * Check if this device might have remapped nvme devices.
1505 	 */
1506 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1507 	    pci_resource_len(pdev, bar) < SZ_512K ||
1508 	    bar != AHCI_PCI_BAR_STANDARD ||
1509 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1510 		return;
1511 
1512 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1513 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1514 		if ((cap & (1 << i)) == 0)
1515 			continue;
1516 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1517 				!= PCI_CLASS_STORAGE_EXPRESS)
1518 			continue;
1519 
1520 		/* We've found a remapped device */
1521 		hpriv->remapped_nvme++;
1522 	}
1523 
1524 	if (!hpriv->remapped_nvme)
1525 		return;
1526 
1527 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1528 		 hpriv->remapped_nvme);
1529 	dev_warn(&pdev->dev,
1530 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1531 
1532 	/*
1533 	 * Don't rely on the msi-x capability in the remap case,
1534 	 * share the legacy interrupt across ahci and remapped devices.
1535 	 */
1536 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1537 }
1538 
1539 static int ahci_get_irq_vector(struct ata_host *host, int port)
1540 {
1541 	return pci_irq_vector(to_pci_dev(host->dev), port);
1542 }
1543 
1544 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1545 			struct ahci_host_priv *hpriv)
1546 {
1547 	int nvec;
1548 
1549 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1550 		return -ENODEV;
1551 
1552 	/*
1553 	 * If number of MSIs is less than number of ports then Sharing Last
1554 	 * Message mode could be enforced. In this case assume that advantage
1555 	 * of multipe MSIs is negated and use single MSI mode instead.
1556 	 */
1557 	if (n_ports > 1) {
1558 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1559 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1560 		if (nvec > 0) {
1561 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1562 				hpriv->get_irq_vector = ahci_get_irq_vector;
1563 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1564 				return nvec;
1565 			}
1566 
1567 			/*
1568 			 * Fallback to single MSI mode if the controller
1569 			 * enforced MRSM mode.
1570 			 */
1571 			printk(KERN_INFO
1572 				"ahci: MRSM is on, fallback to single MSI\n");
1573 			pci_free_irq_vectors(pdev);
1574 		}
1575 	}
1576 
1577 	/*
1578 	 * If the host is not capable of supporting per-port vectors, fall
1579 	 * back to single MSI before finally attempting single MSI-X.
1580 	 */
1581 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1582 	if (nvec == 1)
1583 		return nvec;
1584 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1585 }
1586 
1587 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1588 					   struct ahci_host_priv *hpriv)
1589 {
1590 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1591 
1592 
1593 	/* Ignore processing for non mobile platforms */
1594 	if (!(hpriv->flags & AHCI_HFLAG_IS_MOBILE))
1595 		return;
1596 
1597 	/* user modified policy via module param */
1598 	if (mobile_lpm_policy != -1) {
1599 		policy = mobile_lpm_policy;
1600 		goto update_policy;
1601 	}
1602 
1603 #ifdef CONFIG_ACPI
1604 	if (policy > ATA_LPM_MED_POWER &&
1605 	    (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
1606 		if (hpriv->cap & HOST_CAP_PART)
1607 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1608 		else if (hpriv->cap & HOST_CAP_SSC)
1609 			policy = ATA_LPM_MIN_POWER;
1610 	}
1611 #endif
1612 
1613 update_policy:
1614 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1615 		ap->target_lpm_policy = policy;
1616 }
1617 
1618 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1619 {
1620 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1621 	u16 tmp16;
1622 
1623 	/*
1624 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1625 	 */
1626 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1627 		return;
1628 
1629 	/* Skip applying the quirk on Denverton and beyond */
1630 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1631 		return;
1632 
1633 	/*
1634 	 * port_map is determined from PORTS_IMPL PCI register which is
1635 	 * implemented as write or write-once register.  If the register
1636 	 * isn't programmed, ahci automatically generates it from number
1637 	 * of ports, which is good enough for PCS programming. It is
1638 	 * otherwise expected that platform firmware enables the ports
1639 	 * before the OS boots.
1640 	 */
1641 	pci_read_config_word(pdev, PCS_6, &tmp16);
1642 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1643 		tmp16 |= hpriv->port_map;
1644 		pci_write_config_word(pdev, PCS_6, tmp16);
1645 	}
1646 }
1647 
1648 static ssize_t remapped_nvme_show(struct device *dev,
1649 				  struct device_attribute *attr,
1650 				  char *buf)
1651 {
1652 	struct ata_host *host = dev_get_drvdata(dev);
1653 	struct ahci_host_priv *hpriv = host->private_data;
1654 
1655 	return sprintf(buf, "%u\n", hpriv->remapped_nvme);
1656 }
1657 
1658 static DEVICE_ATTR_RO(remapped_nvme);
1659 
1660 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1661 {
1662 	unsigned int board_id = ent->driver_data;
1663 	struct ata_port_info pi = ahci_port_info[board_id];
1664 	const struct ata_port_info *ppi[] = { &pi, NULL };
1665 	struct device *dev = &pdev->dev;
1666 	struct ahci_host_priv *hpriv;
1667 	struct ata_host *host;
1668 	int n_ports, i, rc;
1669 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1670 
1671 	VPRINTK("ENTER\n");
1672 
1673 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1674 
1675 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1676 
1677 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1678 	   can drive them all so if both drivers are selected make sure
1679 	   AHCI stays out of the way */
1680 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1681 		return -ENODEV;
1682 
1683 	/* Apple BIOS on MCP89 prevents us using AHCI */
1684 	if (is_mcp89_apple(pdev))
1685 		ahci_mcp89_apple_enable(pdev);
1686 
1687 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1688 	 * At the moment, we can only use the AHCI mode. Let the users know
1689 	 * that for SAS drives they're out of luck.
1690 	 */
1691 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1692 		dev_info(&pdev->dev,
1693 			 "PDC42819 can only drive SATA devices with this driver\n");
1694 
1695 	/* Some devices use non-standard BARs */
1696 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1697 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1698 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1699 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1700 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1701 		if (pdev->device == 0xa01c)
1702 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1703 		if (pdev->device == 0xa084)
1704 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1705 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1706 		if (pdev->device == 0x7a08)
1707 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1708 	}
1709 
1710 	/* acquire resources */
1711 	rc = pcim_enable_device(pdev);
1712 	if (rc)
1713 		return rc;
1714 
1715 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1716 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1717 		u8 map;
1718 
1719 		/* ICH6s share the same PCI ID for both piix and ahci
1720 		 * modes.  Enabling ahci mode while MAP indicates
1721 		 * combined mode is a bad idea.  Yield to ata_piix.
1722 		 */
1723 		pci_read_config_byte(pdev, ICH_MAP, &map);
1724 		if (map & 0x3) {
1725 			dev_info(&pdev->dev,
1726 				 "controller is in combined mode, can't enable AHCI mode\n");
1727 			return -ENODEV;
1728 		}
1729 	}
1730 
1731 	/* AHCI controllers often implement SFF compatible interface.
1732 	 * Grab all PCI BARs just in case.
1733 	 */
1734 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1735 	if (rc == -EBUSY)
1736 		pcim_pin_device(pdev);
1737 	if (rc)
1738 		return rc;
1739 
1740 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1741 	if (!hpriv)
1742 		return -ENOMEM;
1743 	hpriv->flags |= (unsigned long)pi.private_data;
1744 
1745 	/* MCP65 revision A1 and A2 can't do MSI */
1746 	if (board_id == board_ahci_mcp65 &&
1747 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1748 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1749 
1750 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1751 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1752 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1753 
1754 	/* only some SB600s can do 64bit DMA */
1755 	if (ahci_sb600_enable_64bit(pdev))
1756 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1757 
1758 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1759 
1760 	/* detect remapped nvme devices */
1761 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1762 
1763 	sysfs_add_file_to_group(&pdev->dev.kobj,
1764 				&dev_attr_remapped_nvme.attr,
1765 				NULL);
1766 
1767 	/* must set flag prior to save config in order to take effect */
1768 	if (ahci_broken_devslp(pdev))
1769 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1770 
1771 #ifdef CONFIG_ARM64
1772 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1773 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1774 #endif
1775 
1776 	/* save initial config */
1777 	ahci_pci_save_initial_config(pdev, hpriv);
1778 
1779 	/*
1780 	 * If platform firmware failed to enable ports, try to enable
1781 	 * them here.
1782 	 */
1783 	ahci_intel_pcs_quirk(pdev, hpriv);
1784 
1785 	/* prepare host */
1786 	if (hpriv->cap & HOST_CAP_NCQ) {
1787 		pi.flags |= ATA_FLAG_NCQ;
1788 		/*
1789 		 * Auto-activate optimization is supposed to be
1790 		 * supported on all AHCI controllers indicating NCQ
1791 		 * capability, but it seems to be broken on some
1792 		 * chipsets including NVIDIAs.
1793 		 */
1794 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1795 			pi.flags |= ATA_FLAG_FPDMA_AA;
1796 
1797 		/*
1798 		 * All AHCI controllers should be forward-compatible
1799 		 * with the new auxiliary field. This code should be
1800 		 * conditionalized if any buggy AHCI controllers are
1801 		 * encountered.
1802 		 */
1803 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1804 	}
1805 
1806 	if (hpriv->cap & HOST_CAP_PMP)
1807 		pi.flags |= ATA_FLAG_PMP;
1808 
1809 	ahci_set_em_messages(hpriv, &pi);
1810 
1811 	if (ahci_broken_system_poweroff(pdev)) {
1812 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1813 		dev_info(&pdev->dev,
1814 			"quirky BIOS, skipping spindown on poweroff\n");
1815 	}
1816 
1817 	if (ahci_broken_lpm(pdev)) {
1818 		pi.flags |= ATA_FLAG_NO_LPM;
1819 		dev_warn(&pdev->dev,
1820 			 "BIOS update required for Link Power Management support\n");
1821 	}
1822 
1823 	if (ahci_broken_suspend(pdev)) {
1824 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1825 		dev_warn(&pdev->dev,
1826 			 "BIOS update required for suspend/resume\n");
1827 	}
1828 
1829 	if (ahci_broken_online(pdev)) {
1830 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1831 		dev_info(&pdev->dev,
1832 			 "online status unreliable, applying workaround\n");
1833 	}
1834 
1835 
1836 	/* Acer SA5-271 workaround modifies private_data */
1837 	acer_sa5_271_workaround(hpriv, pdev);
1838 
1839 	/* CAP.NP sometimes indicate the index of the last enabled
1840 	 * port, at other times, that of the last possible port, so
1841 	 * determining the maximum port number requires looking at
1842 	 * both CAP.NP and port_map.
1843 	 */
1844 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1845 
1846 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1847 	if (!host)
1848 		return -ENOMEM;
1849 	host->private_data = hpriv;
1850 
1851 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1852 		/* legacy intx interrupts */
1853 		pci_intx(pdev, 1);
1854 	}
1855 	hpriv->irq = pci_irq_vector(pdev, 0);
1856 
1857 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1858 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1859 	else
1860 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1861 
1862 	if (pi.flags & ATA_FLAG_EM)
1863 		ahci_reset_em(host);
1864 
1865 	for (i = 0; i < host->n_ports; i++) {
1866 		struct ata_port *ap = host->ports[i];
1867 
1868 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1869 		ata_port_pbar_desc(ap, ahci_pci_bar,
1870 				   0x100 + ap->port_no * 0x80, "port");
1871 
1872 		/* set enclosure management message type */
1873 		if (ap->flags & ATA_FLAG_EM)
1874 			ap->em_message_type = hpriv->em_msg_type;
1875 
1876 		ahci_update_initial_lpm_policy(ap, hpriv);
1877 
1878 		/* disabled/not-implemented port */
1879 		if (!(hpriv->port_map & (1 << i)))
1880 			ap->ops = &ata_dummy_port_ops;
1881 	}
1882 
1883 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1884 	ahci_p5wdh_workaround(host);
1885 
1886 	/* apply gtf filter quirk */
1887 	ahci_gtf_filter_workaround(host);
1888 
1889 	/* initialize adapter */
1890 	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1891 	if (rc)
1892 		return rc;
1893 
1894 	rc = ahci_reset_controller(host);
1895 	if (rc)
1896 		return rc;
1897 
1898 	ahci_pci_init_controller(host);
1899 	ahci_pci_print_info(host);
1900 
1901 	pci_set_master(pdev);
1902 
1903 	rc = ahci_host_activate(host, &ahci_sht);
1904 	if (rc)
1905 		return rc;
1906 
1907 	pm_runtime_put_noidle(&pdev->dev);
1908 	return 0;
1909 }
1910 
1911 static void ahci_shutdown_one(struct pci_dev *pdev)
1912 {
1913 	ata_pci_shutdown_one(pdev);
1914 }
1915 
1916 static void ahci_remove_one(struct pci_dev *pdev)
1917 {
1918 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1919 				     &dev_attr_remapped_nvme.attr,
1920 				     NULL);
1921 	pm_runtime_get_noresume(&pdev->dev);
1922 	ata_pci_remove_one(pdev);
1923 }
1924 
1925 module_pci_driver(ahci_pci_driver);
1926 
1927 MODULE_AUTHOR("Jeff Garzik");
1928 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1929 MODULE_LICENSE("GPL");
1930 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1931 MODULE_VERSION(DRV_VERSION);
1932