xref: /linux/drivers/ata/ahci.c (revision 1448f8acf4cc61197a228bdb7126e7eeb92760fe)
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, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
364 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
365 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
366 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
367 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
368 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
369 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
370 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
371 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
372 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
373 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
374 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
375 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
376 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_mobile }, /* Wildcat LP AHCI */
377 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_mobile }, /* Wildcat LP RAID */
378 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_mobile }, /* Wildcat LP RAID */
379 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_mobile }, /* Wildcat LP RAID */
380 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
381 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_mobile }, /* 9 Series M AHCI */
382 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
383 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_mobile }, /* 9 Series M RAID */
384 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
385 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_mobile }, /* 9 Series M RAID */
386 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
387 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_mobile }, /* 9 Series M RAID */
388 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_mobile }, /* Sunrise LP AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_mobile }, /* Sunrise LP RAID */
390 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_mobile }, /* Sunrise LP RAID */
391 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
392 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_mobile }, /* Sunrise M AHCI */
393 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
394 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
395 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
396 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
397 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
398 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
399 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
400 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
401 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
402 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
403 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
404 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
405 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
406 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
407 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
408 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
409 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
410 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
411 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
412 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_mobile }, /* Bay Trail AHCI */
413 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_mobile }, /* Bay Trail AHCI */
414 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_mobile }, /* Cherry Tr. AHCI */
415 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_mobile }, /* ApolloLake AHCI */
416 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_mobile }, /* Ice Lake LP AHCI */
417 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_mobile }, /* Comet Lake PCH-U AHCI */
418 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_mobile }, /* Comet Lake PCH RAID */
419 
420 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
421 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
422 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
423 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
424 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
425 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
426 	/* May need to update quirk_jmicron_async_suspend() for additions */
427 
428 	/* ATI */
429 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
430 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
431 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
432 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
433 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
434 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
435 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
436 
437 	/* Amazon's Annapurna Labs support */
438 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
439 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
440 		.class_mask = 0xffffff,
441 		board_ahci_al },
442 	/* AMD */
443 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
444 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
445 	/* AMD is using RAID class only for ahci controllers */
446 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
447 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
448 
449 	/* VIA */
450 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
451 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
452 
453 	/* NVIDIA */
454 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
455 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
456 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
457 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
458 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
459 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
460 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
461 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
462 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
463 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
464 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
465 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
466 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
467 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
468 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
469 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
470 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
471 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
472 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
473 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
474 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
475 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
476 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
477 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
478 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
479 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
480 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
481 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
482 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
483 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
484 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
485 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
486 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
487 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
488 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
489 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
490 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
491 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
492 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
493 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
494 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
495 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
496 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
497 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
498 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
499 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
500 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
501 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
502 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
503 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
504 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
505 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
506 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
507 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
508 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
509 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
510 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
511 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
512 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
513 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
514 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
515 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
516 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
517 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
518 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
519 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
520 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
538 
539 	/* SiS */
540 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
541 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
542 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
543 
544 	/* ST Microelectronics */
545 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
546 
547 	/* Marvell */
548 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
549 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
550 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
551 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
552 	  .class_mask = 0xffffff,
553 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
554 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
555 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
556 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
557 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
558 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
559 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
560 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
561 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
562 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
563 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
564 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
565 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
566 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
567 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
568 	  .driver_data = board_ahci_yes_fbs },
569 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
570 	  .driver_data = board_ahci_yes_fbs },
571 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
572 	  .driver_data = board_ahci_yes_fbs },
573 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
574 	  .driver_data = board_ahci_yes_fbs },
575 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
576 	  .driver_data = board_ahci_yes_fbs },
577 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
578 	  .driver_data = board_ahci_yes_fbs },
579 
580 	/* Promise */
581 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
582 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
583 
584 	/* Asmedia */
585 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
586 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
587 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
588 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
589 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
590 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
591 
592 	/*
593 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
594 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
595 	 */
596 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
597 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
598 
599 	/* Enmotus */
600 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
601 
602 	/* Loongson */
603 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
604 
605 	/* Generic, PCI class code for AHCI */
606 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
607 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
608 
609 	{ }	/* terminate list */
610 };
611 
612 static const struct dev_pm_ops ahci_pci_pm_ops = {
613 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
614 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
615 			   ahci_pci_device_runtime_resume, NULL)
616 };
617 
618 static struct pci_driver ahci_pci_driver = {
619 	.name			= DRV_NAME,
620 	.id_table		= ahci_pci_tbl,
621 	.probe			= ahci_init_one,
622 	.remove			= ahci_remove_one,
623 	.shutdown		= ahci_shutdown_one,
624 	.driver = {
625 		.pm		= &ahci_pci_pm_ops,
626 	},
627 };
628 
629 #if IS_ENABLED(CONFIG_PATA_MARVELL)
630 static int marvell_enable;
631 #else
632 static int marvell_enable = 1;
633 #endif
634 module_param(marvell_enable, int, 0644);
635 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
636 
637 static int mobile_lpm_policy = -1;
638 module_param(mobile_lpm_policy, int, 0644);
639 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
640 
641 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
642 					 struct ahci_host_priv *hpriv)
643 {
644 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
645 		dev_info(&pdev->dev, "JMB361 has only one port\n");
646 		hpriv->force_port_map = 1;
647 	}
648 
649 	/*
650 	 * Temporary Marvell 6145 hack: PATA port presence
651 	 * is asserted through the standard AHCI port
652 	 * presence register, as bit 4 (counting from 0)
653 	 */
654 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
655 		if (pdev->device == 0x6121)
656 			hpriv->mask_port_map = 0x3;
657 		else
658 			hpriv->mask_port_map = 0xf;
659 		dev_info(&pdev->dev,
660 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
661 	}
662 
663 	ahci_save_initial_config(&pdev->dev, hpriv);
664 }
665 
666 static void ahci_pci_init_controller(struct ata_host *host)
667 {
668 	struct ahci_host_priv *hpriv = host->private_data;
669 	struct pci_dev *pdev = to_pci_dev(host->dev);
670 	void __iomem *port_mmio;
671 	u32 tmp;
672 	int mv;
673 
674 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
675 		if (pdev->device == 0x6121)
676 			mv = 2;
677 		else
678 			mv = 4;
679 		port_mmio = __ahci_port_base(host, mv);
680 
681 		writel(0, port_mmio + PORT_IRQ_MASK);
682 
683 		/* clear port IRQ */
684 		tmp = readl(port_mmio + PORT_IRQ_STAT);
685 		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
686 		if (tmp)
687 			writel(tmp, port_mmio + PORT_IRQ_STAT);
688 	}
689 
690 	ahci_init_controller(host);
691 }
692 
693 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
694 				 unsigned long deadline)
695 {
696 	struct ata_port *ap = link->ap;
697 	struct ahci_host_priv *hpriv = ap->host->private_data;
698 	bool online;
699 	int rc;
700 
701 	DPRINTK("ENTER\n");
702 
703 	hpriv->stop_engine(ap);
704 
705 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
706 				 deadline, &online, NULL);
707 
708 	hpriv->start_engine(ap);
709 
710 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
711 
712 	/* vt8251 doesn't clear BSY on signature FIS reception,
713 	 * request follow-up softreset.
714 	 */
715 	return online ? -EAGAIN : rc;
716 }
717 
718 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
719 				unsigned long deadline)
720 {
721 	struct ata_port *ap = link->ap;
722 	struct ahci_port_priv *pp = ap->private_data;
723 	struct ahci_host_priv *hpriv = ap->host->private_data;
724 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
725 	struct ata_taskfile tf;
726 	bool online;
727 	int rc;
728 
729 	hpriv->stop_engine(ap);
730 
731 	/* clear D2H reception area to properly wait for D2H FIS */
732 	ata_tf_init(link->device, &tf);
733 	tf.command = ATA_BUSY;
734 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
735 
736 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
737 				 deadline, &online, NULL);
738 
739 	hpriv->start_engine(ap);
740 
741 	/* The pseudo configuration device on SIMG4726 attached to
742 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
743 	 * hardreset if no device is attached to the first downstream
744 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
745 	 * work around this, wait for !BSY only briefly.  If BSY isn't
746 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
747 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
748 	 *
749 	 * Wait for two seconds.  Devices attached to downstream port
750 	 * which can't process the following IDENTIFY after this will
751 	 * have to be reset again.  For most cases, this should
752 	 * suffice while making probing snappish enough.
753 	 */
754 	if (online) {
755 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
756 					  ahci_check_ready);
757 		if (rc)
758 			ahci_kick_engine(ap);
759 	}
760 	return rc;
761 }
762 
763 /*
764  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
765  *
766  * It has been observed with some SSDs that the timing of events in the
767  * link synchronization phase can leave the port in a state that can not
768  * be recovered by a SATA-hard-reset alone.  The failing signature is
769  * SStatus.DET stuck at 1 ("Device presence detected but Phy
770  * communication not established").  It was found that unloading and
771  * reloading the driver when this problem occurs allows the drive
772  * connection to be recovered (DET advanced to 0x3).  The critical
773  * component of reloading the driver is that the port state machines are
774  * reset by bouncing "port enable" in the AHCI PCS configuration
775  * register.  So, reproduce that effect by bouncing a port whenever we
776  * see DET==1 after a reset.
777  */
778 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
779 			      unsigned long deadline)
780 {
781 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
782 	struct ata_port *ap = link->ap;
783 	struct ahci_port_priv *pp = ap->private_data;
784 	struct ahci_host_priv *hpriv = ap->host->private_data;
785 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
786 	unsigned long tmo = deadline - jiffies;
787 	struct ata_taskfile tf;
788 	bool online;
789 	int rc, i;
790 
791 	DPRINTK("ENTER\n");
792 
793 	hpriv->stop_engine(ap);
794 
795 	for (i = 0; i < 2; i++) {
796 		u16 val;
797 		u32 sstatus;
798 		int port = ap->port_no;
799 		struct ata_host *host = ap->host;
800 		struct pci_dev *pdev = to_pci_dev(host->dev);
801 
802 		/* clear D2H reception area to properly wait for D2H FIS */
803 		ata_tf_init(link->device, &tf);
804 		tf.command = ATA_BUSY;
805 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
806 
807 		rc = sata_link_hardreset(link, timing, deadline, &online,
808 				ahci_check_ready);
809 
810 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
811 				(sstatus & 0xf) != 1)
812 			break;
813 
814 		ata_link_info(link,  "avn bounce port%d\n", port);
815 
816 		pci_read_config_word(pdev, 0x92, &val);
817 		val &= ~(1 << port);
818 		pci_write_config_word(pdev, 0x92, val);
819 		ata_msleep(ap, 1000);
820 		val |= 1 << port;
821 		pci_write_config_word(pdev, 0x92, val);
822 		deadline += tmo;
823 	}
824 
825 	hpriv->start_engine(ap);
826 
827 	if (online)
828 		*class = ahci_dev_classify(ap);
829 
830 	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
831 	return rc;
832 }
833 
834 
835 #ifdef CONFIG_PM
836 static void ahci_pci_disable_interrupts(struct ata_host *host)
837 {
838 	struct ahci_host_priv *hpriv = host->private_data;
839 	void __iomem *mmio = hpriv->mmio;
840 	u32 ctl;
841 
842 	/* AHCI spec rev1.1 section 8.3.3:
843 	 * Software must disable interrupts prior to requesting a
844 	 * transition of the HBA to D3 state.
845 	 */
846 	ctl = readl(mmio + HOST_CTL);
847 	ctl &= ~HOST_IRQ_EN;
848 	writel(ctl, mmio + HOST_CTL);
849 	readl(mmio + HOST_CTL); /* flush */
850 }
851 
852 static int ahci_pci_device_runtime_suspend(struct device *dev)
853 {
854 	struct pci_dev *pdev = to_pci_dev(dev);
855 	struct ata_host *host = pci_get_drvdata(pdev);
856 
857 	ahci_pci_disable_interrupts(host);
858 	return 0;
859 }
860 
861 static int ahci_pci_device_runtime_resume(struct device *dev)
862 {
863 	struct pci_dev *pdev = to_pci_dev(dev);
864 	struct ata_host *host = pci_get_drvdata(pdev);
865 	int rc;
866 
867 	rc = ahci_reset_controller(host);
868 	if (rc)
869 		return rc;
870 	ahci_pci_init_controller(host);
871 	return 0;
872 }
873 
874 #ifdef CONFIG_PM_SLEEP
875 static int ahci_pci_device_suspend(struct device *dev)
876 {
877 	struct pci_dev *pdev = to_pci_dev(dev);
878 	struct ata_host *host = pci_get_drvdata(pdev);
879 	struct ahci_host_priv *hpriv = host->private_data;
880 
881 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
882 		dev_err(&pdev->dev,
883 			"BIOS update required for suspend/resume\n");
884 		return -EIO;
885 	}
886 
887 	ahci_pci_disable_interrupts(host);
888 	return ata_host_suspend(host, PMSG_SUSPEND);
889 }
890 
891 static int ahci_pci_device_resume(struct device *dev)
892 {
893 	struct pci_dev *pdev = to_pci_dev(dev);
894 	struct ata_host *host = pci_get_drvdata(pdev);
895 	int rc;
896 
897 	/* Apple BIOS helpfully mangles the registers on resume */
898 	if (is_mcp89_apple(pdev))
899 		ahci_mcp89_apple_enable(pdev);
900 
901 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
902 		rc = ahci_reset_controller(host);
903 		if (rc)
904 			return rc;
905 
906 		ahci_pci_init_controller(host);
907 	}
908 
909 	ata_host_resume(host);
910 
911 	return 0;
912 }
913 #endif
914 
915 #endif /* CONFIG_PM */
916 
917 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
918 {
919 	const int dma_bits = using_dac ? 64 : 32;
920 	int rc;
921 
922 	/*
923 	 * If the device fixup already set the dma_mask to some non-standard
924 	 * value, don't extend it here. This happens on STA2X11, for example.
925 	 *
926 	 * XXX: manipulating the DMA mask from platform code is completely
927 	 * bogus, platform code should use dev->bus_dma_limit instead..
928 	 */
929 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
930 		return 0;
931 
932 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
933 	if (rc)
934 		dev_err(&pdev->dev, "DMA enable failed\n");
935 	return rc;
936 }
937 
938 static void ahci_pci_print_info(struct ata_host *host)
939 {
940 	struct pci_dev *pdev = to_pci_dev(host->dev);
941 	u16 cc;
942 	const char *scc_s;
943 
944 	pci_read_config_word(pdev, 0x0a, &cc);
945 	if (cc == PCI_CLASS_STORAGE_IDE)
946 		scc_s = "IDE";
947 	else if (cc == PCI_CLASS_STORAGE_SATA)
948 		scc_s = "SATA";
949 	else if (cc == PCI_CLASS_STORAGE_RAID)
950 		scc_s = "RAID";
951 	else
952 		scc_s = "unknown";
953 
954 	ahci_print_info(host, scc_s);
955 }
956 
957 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
958  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
959  * support PMP and the 4726 either directly exports the device
960  * attached to the first downstream port or acts as a hardware storage
961  * controller and emulate a single ATA device (can be RAID 0/1 or some
962  * other configuration).
963  *
964  * When there's no device attached to the first downstream port of the
965  * 4726, "Config Disk" appears, which is a pseudo ATA device to
966  * configure the 4726.  However, ATA emulation of the device is very
967  * lame.  It doesn't send signature D2H Reg FIS after the initial
968  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
969  *
970  * The following function works around the problem by always using
971  * hardreset on the port and not depending on receiving signature FIS
972  * afterward.  If signature FIS isn't received soon, ATA class is
973  * assumed without follow-up softreset.
974  */
975 static void ahci_p5wdh_workaround(struct ata_host *host)
976 {
977 	static const struct dmi_system_id sysids[] = {
978 		{
979 			.ident = "P5W DH Deluxe",
980 			.matches = {
981 				DMI_MATCH(DMI_SYS_VENDOR,
982 					  "ASUSTEK COMPUTER INC"),
983 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
984 			},
985 		},
986 		{ }
987 	};
988 	struct pci_dev *pdev = to_pci_dev(host->dev);
989 
990 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
991 	    dmi_check_system(sysids)) {
992 		struct ata_port *ap = host->ports[1];
993 
994 		dev_info(&pdev->dev,
995 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
996 
997 		ap->ops = &ahci_p5wdh_ops;
998 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
999 	}
1000 }
1001 
1002 /*
1003  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1004  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1005  */
1006 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1007 {
1008 	u32 val;
1009 
1010 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1011 
1012 	pci_read_config_dword(pdev, 0xf8, &val);
1013 	val |= 1 << 0x1b;
1014 	/* the following changes the device ID, but appears not to affect function */
1015 	/* val = (val & ~0xf0000000) | 0x80000000; */
1016 	pci_write_config_dword(pdev, 0xf8, val);
1017 
1018 	pci_read_config_dword(pdev, 0x54c, &val);
1019 	val |= 1 << 0xc;
1020 	pci_write_config_dword(pdev, 0x54c, val);
1021 
1022 	pci_read_config_dword(pdev, 0x4a4, &val);
1023 	val &= 0xff;
1024 	val |= 0x01060100;
1025 	pci_write_config_dword(pdev, 0x4a4, val);
1026 
1027 	pci_read_config_dword(pdev, 0x54c, &val);
1028 	val &= ~(1 << 0xc);
1029 	pci_write_config_dword(pdev, 0x54c, val);
1030 
1031 	pci_read_config_dword(pdev, 0xf8, &val);
1032 	val &= ~(1 << 0x1b);
1033 	pci_write_config_dword(pdev, 0xf8, val);
1034 }
1035 
1036 static bool is_mcp89_apple(struct pci_dev *pdev)
1037 {
1038 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1039 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1040 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1041 		pdev->subsystem_device == 0xcb89;
1042 }
1043 
1044 /* only some SB600 ahci controllers can do 64bit DMA */
1045 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1046 {
1047 	static const struct dmi_system_id sysids[] = {
1048 		/*
1049 		 * The oldest version known to be broken is 0901 and
1050 		 * working is 1501 which was released on 2007-10-26.
1051 		 * Enable 64bit DMA on 1501 and anything newer.
1052 		 *
1053 		 * Please read bko#9412 for more info.
1054 		 */
1055 		{
1056 			.ident = "ASUS M2A-VM",
1057 			.matches = {
1058 				DMI_MATCH(DMI_BOARD_VENDOR,
1059 					  "ASUSTeK Computer INC."),
1060 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1061 			},
1062 			.driver_data = "20071026",	/* yyyymmdd */
1063 		},
1064 		/*
1065 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1066 		 * support 64bit DMA.
1067 		 *
1068 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1069 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1070 		 * This spelling mistake was fixed in BIOS version 1.5, so
1071 		 * 1.5 and later have the Manufacturer as
1072 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1073 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1074 		 *
1075 		 * BIOS versions earlier than 1.9 had a Board Product Name
1076 		 * DMI field of "MS-7376". This was changed to be
1077 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1078 		 * match on DMI_BOARD_NAME of "MS-7376".
1079 		 */
1080 		{
1081 			.ident = "MSI K9A2 Platinum",
1082 			.matches = {
1083 				DMI_MATCH(DMI_BOARD_VENDOR,
1084 					  "MICRO-STAR INTER"),
1085 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1086 			},
1087 		},
1088 		/*
1089 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1090 		 * 64bit DMA.
1091 		 *
1092 		 * This board also had the typo mentioned above in the
1093 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1094 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1095 		 */
1096 		{
1097 			.ident = "MSI K9AGM2",
1098 			.matches = {
1099 				DMI_MATCH(DMI_BOARD_VENDOR,
1100 					  "MICRO-STAR INTER"),
1101 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1102 			},
1103 		},
1104 		/*
1105 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1106 		 * (all release versions from 0301 to 1206 were tested)
1107 		 */
1108 		{
1109 			.ident = "ASUS M3A",
1110 			.matches = {
1111 				DMI_MATCH(DMI_BOARD_VENDOR,
1112 					  "ASUSTeK Computer INC."),
1113 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1114 			},
1115 		},
1116 		{ }
1117 	};
1118 	const struct dmi_system_id *match;
1119 	int year, month, date;
1120 	char buf[9];
1121 
1122 	match = dmi_first_match(sysids);
1123 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1124 	    !match)
1125 		return false;
1126 
1127 	if (!match->driver_data)
1128 		goto enable_64bit;
1129 
1130 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1131 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1132 
1133 	if (strcmp(buf, match->driver_data) >= 0)
1134 		goto enable_64bit;
1135 	else {
1136 		dev_warn(&pdev->dev,
1137 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1138 			 match->ident);
1139 		return false;
1140 	}
1141 
1142 enable_64bit:
1143 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1144 	return true;
1145 }
1146 
1147 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1148 {
1149 	static const struct dmi_system_id broken_systems[] = {
1150 		{
1151 			.ident = "HP Compaq nx6310",
1152 			.matches = {
1153 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1154 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1155 			},
1156 			/* PCI slot number of the controller */
1157 			.driver_data = (void *)0x1FUL,
1158 		},
1159 		{
1160 			.ident = "HP Compaq 6720s",
1161 			.matches = {
1162 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1163 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1164 			},
1165 			/* PCI slot number of the controller */
1166 			.driver_data = (void *)0x1FUL,
1167 		},
1168 
1169 		{ }	/* terminate list */
1170 	};
1171 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1172 
1173 	if (dmi) {
1174 		unsigned long slot = (unsigned long)dmi->driver_data;
1175 		/* apply the quirk only to on-board controllers */
1176 		return slot == PCI_SLOT(pdev->devfn);
1177 	}
1178 
1179 	return false;
1180 }
1181 
1182 static bool ahci_broken_suspend(struct pci_dev *pdev)
1183 {
1184 	static const struct dmi_system_id sysids[] = {
1185 		/*
1186 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1187 		 * to the harddisk doesn't become online after
1188 		 * resuming from STR.  Warn and fail suspend.
1189 		 *
1190 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1191 		 *
1192 		 * Use dates instead of versions to match as HP is
1193 		 * apparently recycling both product and version
1194 		 * strings.
1195 		 *
1196 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1197 		 */
1198 		{
1199 			.ident = "dv4",
1200 			.matches = {
1201 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1202 				DMI_MATCH(DMI_PRODUCT_NAME,
1203 					  "HP Pavilion dv4 Notebook PC"),
1204 			},
1205 			.driver_data = "20090105",	/* F.30 */
1206 		},
1207 		{
1208 			.ident = "dv5",
1209 			.matches = {
1210 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1211 				DMI_MATCH(DMI_PRODUCT_NAME,
1212 					  "HP Pavilion dv5 Notebook PC"),
1213 			},
1214 			.driver_data = "20090506",	/* F.16 */
1215 		},
1216 		{
1217 			.ident = "dv6",
1218 			.matches = {
1219 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1220 				DMI_MATCH(DMI_PRODUCT_NAME,
1221 					  "HP Pavilion dv6 Notebook PC"),
1222 			},
1223 			.driver_data = "20090423",	/* F.21 */
1224 		},
1225 		{
1226 			.ident = "HDX18",
1227 			.matches = {
1228 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1229 				DMI_MATCH(DMI_PRODUCT_NAME,
1230 					  "HP HDX18 Notebook PC"),
1231 			},
1232 			.driver_data = "20090430",	/* F.23 */
1233 		},
1234 		/*
1235 		 * Acer eMachines G725 has the same problem.  BIOS
1236 		 * V1.03 is known to be broken.  V3.04 is known to
1237 		 * work.  Between, there are V1.06, V2.06 and V3.03
1238 		 * that we don't have much idea about.  For now,
1239 		 * blacklist anything older than V3.04.
1240 		 *
1241 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1242 		 */
1243 		{
1244 			.ident = "G725",
1245 			.matches = {
1246 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1247 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1248 			},
1249 			.driver_data = "20091216",	/* V3.04 */
1250 		},
1251 		{ }	/* terminate list */
1252 	};
1253 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1254 	int year, month, date;
1255 	char buf[9];
1256 
1257 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1258 		return false;
1259 
1260 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1261 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1262 
1263 	return strcmp(buf, dmi->driver_data) < 0;
1264 }
1265 
1266 static bool ahci_broken_lpm(struct pci_dev *pdev)
1267 {
1268 	static const struct dmi_system_id sysids[] = {
1269 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1270 		{
1271 			.matches = {
1272 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1273 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1274 			},
1275 			.driver_data = "20180406", /* 1.31 */
1276 		},
1277 		{
1278 			.matches = {
1279 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1280 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1281 			},
1282 			.driver_data = "20180420", /* 1.28 */
1283 		},
1284 		{
1285 			.matches = {
1286 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1287 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1288 			},
1289 			.driver_data = "20180315", /* 1.33 */
1290 		},
1291 		{
1292 			.matches = {
1293 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1294 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1295 			},
1296 			/*
1297 			 * Note date based on release notes, 2.35 has been
1298 			 * reported to be good, but I've been unable to get
1299 			 * a hold of the reporter to get the DMI BIOS date.
1300 			 * TODO: fix this.
1301 			 */
1302 			.driver_data = "20180310", /* 2.35 */
1303 		},
1304 		{ }	/* terminate list */
1305 	};
1306 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1307 	int year, month, date;
1308 	char buf[9];
1309 
1310 	if (!dmi)
1311 		return false;
1312 
1313 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1314 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1315 
1316 	return strcmp(buf, dmi->driver_data) < 0;
1317 }
1318 
1319 static bool ahci_broken_online(struct pci_dev *pdev)
1320 {
1321 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1322 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1323 	static const struct dmi_system_id sysids[] = {
1324 		/*
1325 		 * There are several gigabyte boards which use
1326 		 * SIMG5723s configured as hardware RAID.  Certain
1327 		 * 5723 firmware revisions shipped there keep the link
1328 		 * online but fail to answer properly to SRST or
1329 		 * IDENTIFY when no device is attached downstream
1330 		 * causing libata to retry quite a few times leading
1331 		 * to excessive detection delay.
1332 		 *
1333 		 * As these firmwares respond to the second reset try
1334 		 * with invalid device signature, considering unknown
1335 		 * sig as offline works around the problem acceptably.
1336 		 */
1337 		{
1338 			.ident = "EP45-DQ6",
1339 			.matches = {
1340 				DMI_MATCH(DMI_BOARD_VENDOR,
1341 					  "Gigabyte Technology Co., Ltd."),
1342 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1343 			},
1344 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1345 		},
1346 		{
1347 			.ident = "EP45-DS5",
1348 			.matches = {
1349 				DMI_MATCH(DMI_BOARD_VENDOR,
1350 					  "Gigabyte Technology Co., Ltd."),
1351 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1352 			},
1353 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1354 		},
1355 		{ }	/* terminate list */
1356 	};
1357 #undef ENCODE_BUSDEVFN
1358 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1359 	unsigned int val;
1360 
1361 	if (!dmi)
1362 		return false;
1363 
1364 	val = (unsigned long)dmi->driver_data;
1365 
1366 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1367 }
1368 
1369 static bool ahci_broken_devslp(struct pci_dev *pdev)
1370 {
1371 	/* device with broken DEVSLP but still showing SDS capability */
1372 	static const struct pci_device_id ids[] = {
1373 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1374 		{}
1375 	};
1376 
1377 	return pci_match_id(ids, pdev);
1378 }
1379 
1380 #ifdef CONFIG_ATA_ACPI
1381 static void ahci_gtf_filter_workaround(struct ata_host *host)
1382 {
1383 	static const struct dmi_system_id sysids[] = {
1384 		/*
1385 		 * Aspire 3810T issues a bunch of SATA enable commands
1386 		 * via _GTF including an invalid one and one which is
1387 		 * rejected by the device.  Among the successful ones
1388 		 * is FPDMA non-zero offset enable which when enabled
1389 		 * only on the drive side leads to NCQ command
1390 		 * failures.  Filter it out.
1391 		 */
1392 		{
1393 			.ident = "Aspire 3810T",
1394 			.matches = {
1395 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1396 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1397 			},
1398 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1399 		},
1400 		{ }
1401 	};
1402 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1403 	unsigned int filter;
1404 	int i;
1405 
1406 	if (!dmi)
1407 		return;
1408 
1409 	filter = (unsigned long)dmi->driver_data;
1410 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1411 		 filter, dmi->ident);
1412 
1413 	for (i = 0; i < host->n_ports; i++) {
1414 		struct ata_port *ap = host->ports[i];
1415 		struct ata_link *link;
1416 		struct ata_device *dev;
1417 
1418 		ata_for_each_link(link, ap, EDGE)
1419 			ata_for_each_dev(dev, link, ALL)
1420 				dev->gtf_filter |= filter;
1421 	}
1422 }
1423 #else
1424 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1425 {}
1426 #endif
1427 
1428 /*
1429  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1430  * as DUMMY, or detected but eventually get a "link down" and never get up
1431  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1432  * port_map may hold a value of 0x00.
1433  *
1434  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1435  * and can significantly reduce the occurrence of the problem.
1436  *
1437  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1438  */
1439 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1440 				    struct pci_dev *pdev)
1441 {
1442 	static const struct dmi_system_id sysids[] = {
1443 		{
1444 			.ident = "Acer Switch Alpha 12",
1445 			.matches = {
1446 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1447 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1448 			},
1449 		},
1450 		{ }
1451 	};
1452 
1453 	if (dmi_check_system(sysids)) {
1454 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1455 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1456 			hpriv->port_map = 0x7;
1457 			hpriv->cap = 0xC734FF02;
1458 		}
1459 	}
1460 }
1461 
1462 #ifdef CONFIG_ARM64
1463 /*
1464  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1465  * Workaround is to make sure all pending IRQs are served before leaving
1466  * handler.
1467  */
1468 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1469 {
1470 	struct ata_host *host = dev_instance;
1471 	struct ahci_host_priv *hpriv;
1472 	unsigned int rc = 0;
1473 	void __iomem *mmio;
1474 	u32 irq_stat, irq_masked;
1475 	unsigned int handled = 1;
1476 
1477 	VPRINTK("ENTER\n");
1478 	hpriv = host->private_data;
1479 	mmio = hpriv->mmio;
1480 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1481 	if (!irq_stat)
1482 		return IRQ_NONE;
1483 
1484 	do {
1485 		irq_masked = irq_stat & hpriv->port_map;
1486 		spin_lock(&host->lock);
1487 		rc = ahci_handle_port_intr(host, irq_masked);
1488 		if (!rc)
1489 			handled = 0;
1490 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1491 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1492 		spin_unlock(&host->lock);
1493 	} while (irq_stat);
1494 	VPRINTK("EXIT\n");
1495 
1496 	return IRQ_RETVAL(handled);
1497 }
1498 #endif
1499 
1500 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1501 		struct ahci_host_priv *hpriv)
1502 {
1503 	int i;
1504 	u32 cap;
1505 
1506 	/*
1507 	 * Check if this device might have remapped nvme devices.
1508 	 */
1509 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1510 	    pci_resource_len(pdev, bar) < SZ_512K ||
1511 	    bar != AHCI_PCI_BAR_STANDARD ||
1512 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1513 		return;
1514 
1515 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1516 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1517 		if ((cap & (1 << i)) == 0)
1518 			continue;
1519 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1520 				!= PCI_CLASS_STORAGE_EXPRESS)
1521 			continue;
1522 
1523 		/* We've found a remapped device */
1524 		hpriv->remapped_nvme++;
1525 	}
1526 
1527 	if (!hpriv->remapped_nvme)
1528 		return;
1529 
1530 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1531 		 hpriv->remapped_nvme);
1532 	dev_warn(&pdev->dev,
1533 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1534 
1535 	/*
1536 	 * Don't rely on the msi-x capability in the remap case,
1537 	 * share the legacy interrupt across ahci and remapped devices.
1538 	 */
1539 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1540 }
1541 
1542 static int ahci_get_irq_vector(struct ata_host *host, int port)
1543 {
1544 	return pci_irq_vector(to_pci_dev(host->dev), port);
1545 }
1546 
1547 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1548 			struct ahci_host_priv *hpriv)
1549 {
1550 	int nvec;
1551 
1552 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1553 		return -ENODEV;
1554 
1555 	/*
1556 	 * If number of MSIs is less than number of ports then Sharing Last
1557 	 * Message mode could be enforced. In this case assume that advantage
1558 	 * of multipe MSIs is negated and use single MSI mode instead.
1559 	 */
1560 	if (n_ports > 1) {
1561 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1562 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1563 		if (nvec > 0) {
1564 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1565 				hpriv->get_irq_vector = ahci_get_irq_vector;
1566 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1567 				return nvec;
1568 			}
1569 
1570 			/*
1571 			 * Fallback to single MSI mode if the controller
1572 			 * enforced MRSM mode.
1573 			 */
1574 			printk(KERN_INFO
1575 				"ahci: MRSM is on, fallback to single MSI\n");
1576 			pci_free_irq_vectors(pdev);
1577 		}
1578 	}
1579 
1580 	/*
1581 	 * If the host is not capable of supporting per-port vectors, fall
1582 	 * back to single MSI before finally attempting single MSI-X.
1583 	 */
1584 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1585 	if (nvec == 1)
1586 		return nvec;
1587 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1588 }
1589 
1590 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1591 					   struct ahci_host_priv *hpriv)
1592 {
1593 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1594 
1595 
1596 	/* Ignore processing for non mobile platforms */
1597 	if (!(hpriv->flags & AHCI_HFLAG_IS_MOBILE))
1598 		return;
1599 
1600 	/* user modified policy via module param */
1601 	if (mobile_lpm_policy != -1) {
1602 		policy = mobile_lpm_policy;
1603 		goto update_policy;
1604 	}
1605 
1606 #ifdef CONFIG_ACPI
1607 	if (policy > ATA_LPM_MED_POWER &&
1608 	    (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
1609 		if (hpriv->cap & HOST_CAP_PART)
1610 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1611 		else if (hpriv->cap & HOST_CAP_SSC)
1612 			policy = ATA_LPM_MIN_POWER;
1613 	}
1614 #endif
1615 
1616 update_policy:
1617 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1618 		ap->target_lpm_policy = policy;
1619 }
1620 
1621 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1622 {
1623 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1624 	u16 tmp16;
1625 
1626 	/*
1627 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1628 	 */
1629 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1630 		return;
1631 
1632 	/* Skip applying the quirk on Denverton and beyond */
1633 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1634 		return;
1635 
1636 	/*
1637 	 * port_map is determined from PORTS_IMPL PCI register which is
1638 	 * implemented as write or write-once register.  If the register
1639 	 * isn't programmed, ahci automatically generates it from number
1640 	 * of ports, which is good enough for PCS programming. It is
1641 	 * otherwise expected that platform firmware enables the ports
1642 	 * before the OS boots.
1643 	 */
1644 	pci_read_config_word(pdev, PCS_6, &tmp16);
1645 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1646 		tmp16 |= hpriv->port_map;
1647 		pci_write_config_word(pdev, PCS_6, tmp16);
1648 	}
1649 }
1650 
1651 static ssize_t remapped_nvme_show(struct device *dev,
1652 				  struct device_attribute *attr,
1653 				  char *buf)
1654 {
1655 	struct ata_host *host = dev_get_drvdata(dev);
1656 	struct ahci_host_priv *hpriv = host->private_data;
1657 
1658 	return sprintf(buf, "%u\n", hpriv->remapped_nvme);
1659 }
1660 
1661 static DEVICE_ATTR_RO(remapped_nvme);
1662 
1663 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1664 {
1665 	unsigned int board_id = ent->driver_data;
1666 	struct ata_port_info pi = ahci_port_info[board_id];
1667 	const struct ata_port_info *ppi[] = { &pi, NULL };
1668 	struct device *dev = &pdev->dev;
1669 	struct ahci_host_priv *hpriv;
1670 	struct ata_host *host;
1671 	int n_ports, i, rc;
1672 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1673 
1674 	VPRINTK("ENTER\n");
1675 
1676 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1677 
1678 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1679 
1680 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1681 	   can drive them all so if both drivers are selected make sure
1682 	   AHCI stays out of the way */
1683 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1684 		return -ENODEV;
1685 
1686 	/* Apple BIOS on MCP89 prevents us using AHCI */
1687 	if (is_mcp89_apple(pdev))
1688 		ahci_mcp89_apple_enable(pdev);
1689 
1690 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1691 	 * At the moment, we can only use the AHCI mode. Let the users know
1692 	 * that for SAS drives they're out of luck.
1693 	 */
1694 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1695 		dev_info(&pdev->dev,
1696 			 "PDC42819 can only drive SATA devices with this driver\n");
1697 
1698 	/* Some devices use non-standard BARs */
1699 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1700 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1701 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1702 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1703 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1704 		if (pdev->device == 0xa01c)
1705 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1706 		if (pdev->device == 0xa084)
1707 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1708 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1709 		if (pdev->device == 0x7a08)
1710 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1711 	}
1712 
1713 	/* acquire resources */
1714 	rc = pcim_enable_device(pdev);
1715 	if (rc)
1716 		return rc;
1717 
1718 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1719 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1720 		u8 map;
1721 
1722 		/* ICH6s share the same PCI ID for both piix and ahci
1723 		 * modes.  Enabling ahci mode while MAP indicates
1724 		 * combined mode is a bad idea.  Yield to ata_piix.
1725 		 */
1726 		pci_read_config_byte(pdev, ICH_MAP, &map);
1727 		if (map & 0x3) {
1728 			dev_info(&pdev->dev,
1729 				 "controller is in combined mode, can't enable AHCI mode\n");
1730 			return -ENODEV;
1731 		}
1732 	}
1733 
1734 	/* AHCI controllers often implement SFF compatible interface.
1735 	 * Grab all PCI BARs just in case.
1736 	 */
1737 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1738 	if (rc == -EBUSY)
1739 		pcim_pin_device(pdev);
1740 	if (rc)
1741 		return rc;
1742 
1743 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1744 	if (!hpriv)
1745 		return -ENOMEM;
1746 	hpriv->flags |= (unsigned long)pi.private_data;
1747 
1748 	/* MCP65 revision A1 and A2 can't do MSI */
1749 	if (board_id == board_ahci_mcp65 &&
1750 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1751 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1752 
1753 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1754 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1755 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1756 
1757 	/* only some SB600s can do 64bit DMA */
1758 	if (ahci_sb600_enable_64bit(pdev))
1759 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1760 
1761 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1762 
1763 	/* detect remapped nvme devices */
1764 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1765 
1766 	sysfs_add_file_to_group(&pdev->dev.kobj,
1767 				&dev_attr_remapped_nvme.attr,
1768 				NULL);
1769 
1770 	/* must set flag prior to save config in order to take effect */
1771 	if (ahci_broken_devslp(pdev))
1772 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1773 
1774 #ifdef CONFIG_ARM64
1775 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1776 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1777 #endif
1778 
1779 	/* save initial config */
1780 	ahci_pci_save_initial_config(pdev, hpriv);
1781 
1782 	/*
1783 	 * If platform firmware failed to enable ports, try to enable
1784 	 * them here.
1785 	 */
1786 	ahci_intel_pcs_quirk(pdev, hpriv);
1787 
1788 	/* prepare host */
1789 	if (hpriv->cap & HOST_CAP_NCQ) {
1790 		pi.flags |= ATA_FLAG_NCQ;
1791 		/*
1792 		 * Auto-activate optimization is supposed to be
1793 		 * supported on all AHCI controllers indicating NCQ
1794 		 * capability, but it seems to be broken on some
1795 		 * chipsets including NVIDIAs.
1796 		 */
1797 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1798 			pi.flags |= ATA_FLAG_FPDMA_AA;
1799 
1800 		/*
1801 		 * All AHCI controllers should be forward-compatible
1802 		 * with the new auxiliary field. This code should be
1803 		 * conditionalized if any buggy AHCI controllers are
1804 		 * encountered.
1805 		 */
1806 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1807 	}
1808 
1809 	if (hpriv->cap & HOST_CAP_PMP)
1810 		pi.flags |= ATA_FLAG_PMP;
1811 
1812 	ahci_set_em_messages(hpriv, &pi);
1813 
1814 	if (ahci_broken_system_poweroff(pdev)) {
1815 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1816 		dev_info(&pdev->dev,
1817 			"quirky BIOS, skipping spindown on poweroff\n");
1818 	}
1819 
1820 	if (ahci_broken_lpm(pdev)) {
1821 		pi.flags |= ATA_FLAG_NO_LPM;
1822 		dev_warn(&pdev->dev,
1823 			 "BIOS update required for Link Power Management support\n");
1824 	}
1825 
1826 	if (ahci_broken_suspend(pdev)) {
1827 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1828 		dev_warn(&pdev->dev,
1829 			 "BIOS update required for suspend/resume\n");
1830 	}
1831 
1832 	if (ahci_broken_online(pdev)) {
1833 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1834 		dev_info(&pdev->dev,
1835 			 "online status unreliable, applying workaround\n");
1836 	}
1837 
1838 
1839 	/* Acer SA5-271 workaround modifies private_data */
1840 	acer_sa5_271_workaround(hpriv, pdev);
1841 
1842 	/* CAP.NP sometimes indicate the index of the last enabled
1843 	 * port, at other times, that of the last possible port, so
1844 	 * determining the maximum port number requires looking at
1845 	 * both CAP.NP and port_map.
1846 	 */
1847 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1848 
1849 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1850 	if (!host)
1851 		return -ENOMEM;
1852 	host->private_data = hpriv;
1853 
1854 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1855 		/* legacy intx interrupts */
1856 		pci_intx(pdev, 1);
1857 	}
1858 	hpriv->irq = pci_irq_vector(pdev, 0);
1859 
1860 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1861 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1862 	else
1863 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1864 
1865 	if (pi.flags & ATA_FLAG_EM)
1866 		ahci_reset_em(host);
1867 
1868 	for (i = 0; i < host->n_ports; i++) {
1869 		struct ata_port *ap = host->ports[i];
1870 
1871 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1872 		ata_port_pbar_desc(ap, ahci_pci_bar,
1873 				   0x100 + ap->port_no * 0x80, "port");
1874 
1875 		/* set enclosure management message type */
1876 		if (ap->flags & ATA_FLAG_EM)
1877 			ap->em_message_type = hpriv->em_msg_type;
1878 
1879 		ahci_update_initial_lpm_policy(ap, hpriv);
1880 
1881 		/* disabled/not-implemented port */
1882 		if (!(hpriv->port_map & (1 << i)))
1883 			ap->ops = &ata_dummy_port_ops;
1884 	}
1885 
1886 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1887 	ahci_p5wdh_workaround(host);
1888 
1889 	/* apply gtf filter quirk */
1890 	ahci_gtf_filter_workaround(host);
1891 
1892 	/* initialize adapter */
1893 	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1894 	if (rc)
1895 		return rc;
1896 
1897 	rc = ahci_reset_controller(host);
1898 	if (rc)
1899 		return rc;
1900 
1901 	ahci_pci_init_controller(host);
1902 	ahci_pci_print_info(host);
1903 
1904 	pci_set_master(pdev);
1905 
1906 	rc = ahci_host_activate(host, &ahci_sht);
1907 	if (rc)
1908 		return rc;
1909 
1910 	pm_runtime_put_noidle(&pdev->dev);
1911 	return 0;
1912 }
1913 
1914 static void ahci_shutdown_one(struct pci_dev *pdev)
1915 {
1916 	ata_pci_shutdown_one(pdev);
1917 }
1918 
1919 static void ahci_remove_one(struct pci_dev *pdev)
1920 {
1921 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1922 				     &dev_attr_remapped_nvme.attr,
1923 				     NULL);
1924 	pm_runtime_get_noresume(&pdev->dev);
1925 	ata_pci_remove_one(pdev);
1926 }
1927 
1928 module_pci_driver(ahci_pci_driver);
1929 
1930 MODULE_AUTHOR("Jeff Garzik");
1931 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1932 MODULE_LICENSE("GPL");
1933 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1934 MODULE_VERSION(DRV_VERSION);
1935