xref: /linux/drivers/ata/ahci.c (revision ba199dc909a20fe62270ae4e93f263987bb9d119)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  ahci.c - AHCI SATA support
4  *
5  *  Maintained by:  Tejun Heo <tj@kernel.org>
6  *    		    Please ALWAYS copy linux-ide@vger.kernel.org
7  *		    on emails.
8  *
9  *  Copyright 2004-2005 Red Hat, Inc.
10  *
11  * libata documentation is available via 'make {ps|pdf}docs',
12  * as Documentation/driver-api/libata.rst
13  *
14  * AHCI hardware documentation:
15  * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
16  * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
17  */
18 
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/pci.h>
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/device.h>
27 #include <linux/dmi.h>
28 #include <linux/gfp.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <linux/libata.h>
32 #include <linux/ahci-remap.h>
33 #include <linux/io-64-nonatomic-lo-hi.h>
34 #include "ahci.h"
35 
36 #define DRV_NAME	"ahci"
37 #define DRV_VERSION	"3.0"
38 
39 enum {
40 	AHCI_PCI_BAR_STA2X11	= 0,
41 	AHCI_PCI_BAR_CAVIUM	= 0,
42 	AHCI_PCI_BAR_LOONGSON	= 0,
43 	AHCI_PCI_BAR_ENMOTUS	= 2,
44 	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
45 	AHCI_PCI_BAR_STANDARD	= 5,
46 };
47 
48 enum board_ids {
49 	/* board IDs by feature in alphabetical order */
50 	board_ahci,
51 	board_ahci_43bit_dma,
52 	board_ahci_ign_iferr,
53 	board_ahci_no_debounce_delay,
54 	board_ahci_no_msi,
55 	/*
56 	 * board_ahci_pcs_quirk is for legacy Intel platforms.
57 	 * Modern Intel platforms should use board_ahci instead.
58 	 * (Some modern Intel platforms might have been added with
59 	 * board_ahci_pcs_quirk, however, we cannot change them to board_ahci
60 	 * without testing that the platform actually works without the quirk.)
61 	 */
62 	board_ahci_pcs_quirk,
63 	board_ahci_pcs_quirk_no_devslp,
64 	board_ahci_pcs_quirk_no_sntf,
65 	board_ahci_yes_fbs,
66 
67 	/* board IDs for specific chipsets in alphabetical order */
68 	board_ahci_al,
69 	board_ahci_avn,
70 	board_ahci_mcp65,
71 	board_ahci_mcp77,
72 	board_ahci_mcp89,
73 	board_ahci_mv,
74 	board_ahci_sb600,
75 	board_ahci_sb700,	/* for SB700 and SB800 */
76 	board_ahci_vt8251,
77 
78 	/* aliases */
79 	board_ahci_mcp_linux	= board_ahci_mcp65,
80 	board_ahci_mcp67	= board_ahci_mcp65,
81 	board_ahci_mcp73	= board_ahci_mcp65,
82 	board_ahci_mcp79	= board_ahci_mcp77,
83 };
84 
85 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
86 static void ahci_remove_one(struct pci_dev *dev);
87 static void ahci_shutdown_one(struct pci_dev *dev);
88 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv);
89 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
90 				 unsigned long deadline);
91 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
92 			      unsigned long deadline);
93 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
94 static bool is_mcp89_apple(struct pci_dev *pdev);
95 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
96 				unsigned long deadline);
97 #ifdef CONFIG_PM
98 static int ahci_pci_device_runtime_suspend(struct device *dev);
99 static int ahci_pci_device_runtime_resume(struct device *dev);
100 #ifdef CONFIG_PM_SLEEP
101 static int ahci_pci_device_suspend(struct device *dev);
102 static int ahci_pci_device_resume(struct device *dev);
103 #endif
104 #endif /* CONFIG_PM */
105 
106 static const struct scsi_host_template ahci_sht = {
107 	AHCI_SHT("ahci"),
108 };
109 
110 static struct ata_port_operations ahci_vt8251_ops = {
111 	.inherits		= &ahci_ops,
112 	.hardreset		= ahci_vt8251_hardreset,
113 };
114 
115 static struct ata_port_operations ahci_p5wdh_ops = {
116 	.inherits		= &ahci_ops,
117 	.hardreset		= ahci_p5wdh_hardreset,
118 };
119 
120 static struct ata_port_operations ahci_avn_ops = {
121 	.inherits		= &ahci_ops,
122 	.hardreset		= ahci_avn_hardreset,
123 };
124 
125 static const struct ata_port_info ahci_port_info[] = {
126 	/* by features */
127 	[board_ahci] = {
128 		.flags		= AHCI_FLAG_COMMON,
129 		.pio_mask	= ATA_PIO4,
130 		.udma_mask	= ATA_UDMA6,
131 		.port_ops	= &ahci_ops,
132 	},
133 	[board_ahci_43bit_dma] = {
134 		AHCI_HFLAGS	(AHCI_HFLAG_43BIT_ONLY),
135 		.flags		= AHCI_FLAG_COMMON,
136 		.pio_mask	= ATA_PIO4,
137 		.udma_mask	= ATA_UDMA6,
138 		.port_ops	= &ahci_ops,
139 	},
140 	[board_ahci_ign_iferr] = {
141 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
142 		.flags		= AHCI_FLAG_COMMON,
143 		.pio_mask	= ATA_PIO4,
144 		.udma_mask	= ATA_UDMA6,
145 		.port_ops	= &ahci_ops,
146 	},
147 	[board_ahci_no_debounce_delay] = {
148 		.flags		= AHCI_FLAG_COMMON,
149 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
150 		.pio_mask	= ATA_PIO4,
151 		.udma_mask	= ATA_UDMA6,
152 		.port_ops	= &ahci_ops,
153 	},
154 	[board_ahci_no_msi] = {
155 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
156 		.flags		= AHCI_FLAG_COMMON,
157 		.pio_mask	= ATA_PIO4,
158 		.udma_mask	= ATA_UDMA6,
159 		.port_ops	= &ahci_ops,
160 	},
161 	[board_ahci_pcs_quirk] = {
162 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK),
163 		.flags		= AHCI_FLAG_COMMON,
164 		.pio_mask	= ATA_PIO4,
165 		.udma_mask	= ATA_UDMA6,
166 		.port_ops	= &ahci_ops,
167 	},
168 	[board_ahci_pcs_quirk_no_devslp] = {
169 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK |
170 				 AHCI_HFLAG_NO_DEVSLP),
171 		.flags		= AHCI_FLAG_COMMON,
172 		.pio_mask	= ATA_PIO4,
173 		.udma_mask	= ATA_UDMA6,
174 		.port_ops	= &ahci_ops,
175 	},
176 	[board_ahci_pcs_quirk_no_sntf] = {
177 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK |
178 				 AHCI_HFLAG_NO_SNTF),
179 		.flags		= AHCI_FLAG_COMMON,
180 		.pio_mask	= ATA_PIO4,
181 		.udma_mask	= ATA_UDMA6,
182 		.port_ops	= &ahci_ops,
183 	},
184 	[board_ahci_yes_fbs] = {
185 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
186 		.flags		= AHCI_FLAG_COMMON,
187 		.pio_mask	= ATA_PIO4,
188 		.udma_mask	= ATA_UDMA6,
189 		.port_ops	= &ahci_ops,
190 	},
191 	/* by chipsets */
192 	[board_ahci_al] = {
193 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
194 		.flags		= AHCI_FLAG_COMMON,
195 		.pio_mask	= ATA_PIO4,
196 		.udma_mask	= ATA_UDMA6,
197 		.port_ops	= &ahci_ops,
198 	},
199 	[board_ahci_avn] = {
200 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK),
201 		.flags		= AHCI_FLAG_COMMON,
202 		.pio_mask	= ATA_PIO4,
203 		.udma_mask	= ATA_UDMA6,
204 		.port_ops	= &ahci_avn_ops,
205 	},
206 	[board_ahci_mcp65] = {
207 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
208 				 AHCI_HFLAG_YES_NCQ),
209 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
210 		.pio_mask	= ATA_PIO4,
211 		.udma_mask	= ATA_UDMA6,
212 		.port_ops	= &ahci_ops,
213 	},
214 	[board_ahci_mcp77] = {
215 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
216 		.flags		= AHCI_FLAG_COMMON,
217 		.pio_mask	= ATA_PIO4,
218 		.udma_mask	= ATA_UDMA6,
219 		.port_ops	= &ahci_ops,
220 	},
221 	[board_ahci_mcp89] = {
222 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
223 		.flags		= AHCI_FLAG_COMMON,
224 		.pio_mask	= ATA_PIO4,
225 		.udma_mask	= ATA_UDMA6,
226 		.port_ops	= &ahci_ops,
227 	},
228 	[board_ahci_mv] = {
229 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
230 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
231 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
232 		.pio_mask	= ATA_PIO4,
233 		.udma_mask	= ATA_UDMA6,
234 		.port_ops	= &ahci_ops,
235 	},
236 	[board_ahci_sb600] = {
237 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
238 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
239 				 AHCI_HFLAG_32BIT_ONLY),
240 		.flags		= AHCI_FLAG_COMMON,
241 		.pio_mask	= ATA_PIO4,
242 		.udma_mask	= ATA_UDMA6,
243 		.port_ops	= &ahci_pmp_retry_srst_ops,
244 	},
245 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
246 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
247 		.flags		= AHCI_FLAG_COMMON,
248 		.pio_mask	= ATA_PIO4,
249 		.udma_mask	= ATA_UDMA6,
250 		.port_ops	= &ahci_pmp_retry_srst_ops,
251 	},
252 	[board_ahci_vt8251] = {
253 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
254 		.flags		= AHCI_FLAG_COMMON,
255 		.pio_mask	= ATA_PIO4,
256 		.udma_mask	= ATA_UDMA6,
257 		.port_ops	= &ahci_vt8251_ops,
258 	},
259 };
260 
261 static const struct pci_device_id ahci_pci_tbl[] = {
262 	/* Intel */
263 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci_pcs_quirk }, /* Comet Lake PCH-H RAID */
264 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci_pcs_quirk }, /* ICH6 */
265 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci_pcs_quirk }, /* ICH6M */
266 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci_pcs_quirk }, /* ICH7 */
267 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci_pcs_quirk }, /* ICH7M */
268 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci_pcs_quirk }, /* ICH7R */
269 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
270 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci_pcs_quirk }, /* ESB2 */
271 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci_pcs_quirk }, /* ESB2 */
272 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci_pcs_quirk }, /* ESB2 */
273 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci_pcs_quirk }, /* ICH7-M DH */
274 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci_pcs_quirk }, /* ICH8 */
275 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_pcs_quirk_no_sntf }, /* ICH8/Lewisburg RAID*/
276 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci_pcs_quirk }, /* ICH8 */
277 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci_pcs_quirk }, /* ICH8M */
278 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci_pcs_quirk }, /* ICH8M */
279 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci_pcs_quirk }, /* ICH9 */
280 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci_pcs_quirk }, /* ICH9 */
281 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci_pcs_quirk }, /* ICH9 */
282 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci_pcs_quirk }, /* ICH9 */
283 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci_pcs_quirk }, /* ICH9 */
284 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_pcs_quirk }, /* ICH9M */
285 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_pcs_quirk }, /* ICH9M */
286 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_pcs_quirk }, /* ICH9M */
287 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_pcs_quirk }, /* ICH9M */
288 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_pcs_quirk }, /* ICH9M */
289 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci_pcs_quirk }, /* ICH9 */
290 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_pcs_quirk }, /* ICH9M */
291 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci_pcs_quirk }, /* Tolapai */
292 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci_pcs_quirk }, /* Tolapai */
293 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci_pcs_quirk }, /* ICH10 */
294 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci_pcs_quirk }, /* ICH10 */
295 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci_pcs_quirk }, /* ICH10 */
296 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci_pcs_quirk }, /* PCH AHCI */
297 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci_pcs_quirk }, /* PCH AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci_pcs_quirk }, /* PCH RAID */
299 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci_pcs_quirk }, /* PCH RAID */
300 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_pcs_quirk }, /* PCH M AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci_pcs_quirk }, /* PCH RAID */
302 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_pcs_quirk }, /* PCH M RAID */
303 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci_pcs_quirk }, /* PCH AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
320 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
321 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
322 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
323 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
324 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci_pcs_quirk }, /* CPT AHCI */
325 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_pcs_quirk }, /* CPT M AHCI */
326 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci_pcs_quirk }, /* CPT RAID */
327 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_pcs_quirk }, /* CPT M RAID */
328 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci_pcs_quirk }, /* CPT RAID */
329 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci_pcs_quirk }, /* CPT RAID */
330 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci_pcs_quirk }, /* PBG AHCI */
331 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci_pcs_quirk }, /* PBG RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci_pcs_quirk }, /* PBG RAID */
333 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci_pcs_quirk }, /* DH89xxCC AHCI */
334 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci_pcs_quirk }, /* Panther Point AHCI */
335 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_pcs_quirk }, /* Panther M AHCI */
336 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci_pcs_quirk }, /* Panther Point RAID */
337 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci_pcs_quirk }, /* Panther Point RAID */
338 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci_pcs_quirk }, /* Panther Point RAID */
339 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_pcs_quirk }, /* Panther M RAID */
340 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci_pcs_quirk }, /* Panther Point RAID */
341 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci_pcs_quirk }, /* Lynx Point AHCI */
342 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_pcs_quirk }, /* Lynx M AHCI */
343 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci_pcs_quirk }, /* Lynx Point RAID */
344 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_pcs_quirk }, /* Lynx M RAID */
345 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci_pcs_quirk }, /* Lynx Point RAID */
346 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_pcs_quirk }, /* Lynx M RAID */
347 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci_pcs_quirk }, /* Lynx Point RAID */
348 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_pcs_quirk }, /* Lynx M RAID */
349 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_pcs_quirk }, /* Lynx LP AHCI */
350 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_pcs_quirk }, /* Lynx LP AHCI */
351 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_pcs_quirk }, /* Lynx LP RAID */
352 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_pcs_quirk }, /* Lynx LP RAID */
353 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_pcs_quirk }, /* Lynx LP RAID */
354 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_pcs_quirk }, /* Lynx LP RAID */
355 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_pcs_quirk }, /* Lynx LP RAID */
356 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_pcs_quirk }, /* Lynx LP RAID */
357 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_pcs_quirk }, /* Cannon Lake PCH-LP AHCI */
358 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci_pcs_quirk }, /* Avoton AHCI */
359 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci_pcs_quirk }, /* Avoton AHCI */
360 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci_pcs_quirk }, /* Avoton RAID */
361 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci_pcs_quirk }, /* Avoton RAID */
362 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci_pcs_quirk }, /* Avoton RAID */
363 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci_pcs_quirk }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci_pcs_quirk }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci_pcs_quirk }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
367 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
368 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
369 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
370 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
371 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
372 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
373 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
374 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci_pcs_quirk }, /* Wellsburg/Lewisburg AHCI*/
375 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci_pcs_quirk }, /* *burg SATA0 'RAID' */
376 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci_pcs_quirk }, /* *burg SATA1 'RAID' */
377 	{ PCI_VDEVICE(INTEL, 0x282f), board_ahci_pcs_quirk }, /* *burg SATA2 'RAID' */
378 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci_pcs_quirk }, /* Rocket Lake PCH-H RAID */
379 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci_pcs_quirk }, /* Rocket Lake PCH-H RAID */
380 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci_pcs_quirk }, /* Rocket Lake PCH-H RAID */
381 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci_pcs_quirk }, /* Rocket Lake PCH-H RAID */
382 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci_pcs_quirk }, /* Wellsburg AHCI */
383 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci_pcs_quirk }, /* Wellsburg RAID */
384 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci_pcs_quirk }, /* Wellsburg RAID */
385 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci_pcs_quirk }, /* Wellsburg RAID */
386 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci_pcs_quirk }, /* Wellsburg AHCI */
387 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci_pcs_quirk }, /* Wellsburg RAID */
388 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci_pcs_quirk }, /* Wellsburg RAID */
389 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci_pcs_quirk }, /* Wellsburg RAID */
390 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci_pcs_quirk }, /* Coleto Creek AHCI */
391 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_pcs_quirk }, /* Wildcat LP AHCI */
392 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_pcs_quirk }, /* Wildcat LP RAID */
393 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_pcs_quirk }, /* Wildcat LP RAID */
394 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_pcs_quirk }, /* Wildcat LP RAID */
395 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci_pcs_quirk }, /* 9 Series AHCI */
396 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_pcs_quirk }, /* 9 Series M AHCI */
397 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci_pcs_quirk }, /* 9 Series RAID */
398 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_pcs_quirk }, /* 9 Series M RAID */
399 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci_pcs_quirk }, /* 9 Series RAID */
400 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_pcs_quirk }, /* 9 Series M RAID */
401 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci_pcs_quirk }, /* 9 Series RAID */
402 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_pcs_quirk }, /* 9 Series M RAID */
403 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_pcs_quirk }, /* Sunrise LP AHCI */
404 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_pcs_quirk }, /* Sunrise LP RAID */
405 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_pcs_quirk }, /* Sunrise LP RAID */
406 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci_pcs_quirk }, /* Sunrise Point-H AHCI */
407 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_pcs_quirk }, /* Sunrise M AHCI */
408 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci_pcs_quirk }, /* Sunrise Point-H RAID */
409 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci_pcs_quirk }, /* Sunrise Point-H RAID */
410 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_pcs_quirk }, /* Sunrise M RAID */
411 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci_pcs_quirk }, /* Sunrise Point-H RAID */
412 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci_pcs_quirk }, /* Lewisburg AHCI*/
413 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
414 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
415 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
416 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci_pcs_quirk }, /* Lewisburg AHCI*/
417 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
418 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
419 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci_pcs_quirk }, /* Lewisburg RAID*/
420 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci_pcs_quirk }, /* Cannon Lake PCH-H RAID */
421 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci_pcs_quirk }, /* Comet Lake-H RAID */
422 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci_pcs_quirk }, /* Comet Lake PCH-V RAID */
423 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_pcs_quirk }, /* Bay Trail AHCI */
424 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_pcs_quirk_no_devslp }, /* Bay Trail AHCI */
425 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_pcs_quirk }, /* Cherry Tr. AHCI */
426 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_pcs_quirk }, /* ApolloLake AHCI */
427 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_pcs_quirk }, /* Ice Lake LP AHCI */
428 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_pcs_quirk }, /* Comet Lake PCH-U AHCI */
429 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_pcs_quirk }, /* Comet Lake PCH RAID */
430 	/* Elkhart Lake IDs 0x4b60 & 0x4b62 https://sata-io.org/product/8803 not tested yet */
431 	{ PCI_VDEVICE(INTEL, 0x4b63), board_ahci_pcs_quirk }, /* Elkhart Lake AHCI */
432 
433 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
434 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
435 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
436 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
437 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
438 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
439 	/* May need to update quirk_jmicron_async_suspend() for additions */
440 
441 	/* ATI */
442 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
443 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
444 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
445 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
446 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
447 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
448 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
449 
450 	/* Amazon's Annapurna Labs support */
451 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
452 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
453 		.class_mask = 0xffffff,
454 		board_ahci_al },
455 	/* AMD */
456 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
457 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
458 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
459 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci }, /* AMD Green Sardine */
460 	/* AMD is using RAID class only for ahci controllers */
461 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
462 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
463 
464 	/* Dell S140/S150 */
465 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
466 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci_pcs_quirk },
467 
468 	/* VIA */
469 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
470 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
471 
472 	/* NVIDIA */
473 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
474 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
475 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
476 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
477 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
478 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
479 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
480 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
481 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
482 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
483 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
486 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
487 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
488 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
489 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
490 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
491 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
492 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
493 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
494 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
495 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
502 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
503 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
504 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
505 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
506 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
507 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
508 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
509 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
510 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
511 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
514 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
515 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
516 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
517 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
518 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
519 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
520 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
549 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
550 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
551 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
552 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
553 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
554 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
555 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
556 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
557 
558 	/* SiS */
559 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
560 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
561 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
562 
563 	/* ST Microelectronics */
564 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
565 
566 	/* Marvell */
567 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
568 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
569 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
570 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
571 	  .class_mask = 0xffffff,
572 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
573 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
574 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
575 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
576 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
577 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
578 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
579 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
580 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
581 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
582 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
583 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
584 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
585 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
586 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
587 	  .driver_data = board_ahci_yes_fbs },
588 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
589 	  .driver_data = board_ahci_yes_fbs },
590 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
591 	  .driver_data = board_ahci_yes_fbs },
592 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
593 	  .driver_data = board_ahci_yes_fbs },
594 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
595 	  .driver_data = board_ahci_no_debounce_delay },
596 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
597 	  .driver_data = board_ahci_yes_fbs },
598 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
599 	  .driver_data = board_ahci_yes_fbs },
600 
601 	/* Promise */
602 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
603 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
604 
605 	/* ASMedia */
606 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci_43bit_dma },	/* ASM1060 */
607 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci_43bit_dma },	/* ASM1060 */
608 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci_43bit_dma },	/* ASM1061 */
609 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci_43bit_dma },	/* ASM1061/1062 */
610 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci_43bit_dma },	/* ASM1061R */
611 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci_43bit_dma },	/* ASM1062R */
612 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci_43bit_dma },	/* ASM1062+JMB575 */
613 	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
614 	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
615 	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
616 	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
617 	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
618 
619 	/*
620 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
621 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
622 	 */
623 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_no_msi },
624 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_no_msi },
625 
626 	/* Enmotus */
627 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
628 
629 	/* Loongson */
630 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
631 
632 	/* Generic, PCI class code for AHCI */
633 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
634 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
635 
636 	{ }	/* terminate list */
637 };
638 
639 static const struct dev_pm_ops ahci_pci_pm_ops = {
640 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
641 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
642 			   ahci_pci_device_runtime_resume, NULL)
643 };
644 
645 static struct pci_driver ahci_pci_driver = {
646 	.name			= DRV_NAME,
647 	.id_table		= ahci_pci_tbl,
648 	.probe			= ahci_init_one,
649 	.remove			= ahci_remove_one,
650 	.shutdown		= ahci_shutdown_one,
651 	.driver = {
652 		.pm		= &ahci_pci_pm_ops,
653 	},
654 };
655 
656 #if IS_ENABLED(CONFIG_PATA_MARVELL)
657 static int marvell_enable;
658 #else
659 static int marvell_enable = 1;
660 #endif
661 module_param(marvell_enable, int, 0644);
662 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
663 
664 static int mobile_lpm_policy = -1;
665 module_param(mobile_lpm_policy, int, 0644);
666 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
667 
668 static char *ahci_mask_port_map;
669 module_param_named(mask_port_map, ahci_mask_port_map, charp, 0444);
670 MODULE_PARM_DESC(mask_port_map,
671 		 "32-bits port map masks to ignore controllers ports. "
672 		 "Valid values are: "
673 		 "\"<mask>\" to apply the same mask to all AHCI controller "
674 		 "devices, and \"<pci_dev>=<mask>,<pci_dev>=<mask>,...\" to "
675 		 "specify different masks for the controllers specified, "
676 		 "where <pci_dev> is the PCI ID of an AHCI controller in the "
677 		 "form \"domain:bus:dev.func\"");
678 
679 static void ahci_apply_port_map_mask(struct device *dev,
680 				     struct ahci_host_priv *hpriv, char *mask_s)
681 {
682 	unsigned int mask;
683 
684 	if (kstrtouint(mask_s, 0, &mask)) {
685 		dev_err(dev, "Invalid port map mask\n");
686 		return;
687 	}
688 
689 	hpriv->mask_port_map = mask;
690 }
691 
692 static void ahci_get_port_map_mask(struct device *dev,
693 				   struct ahci_host_priv *hpriv)
694 {
695 	char *param, *end, *str, *mask_s;
696 	char *name;
697 
698 	if (!strlen(ahci_mask_port_map))
699 		return;
700 
701 	str = kstrdup(ahci_mask_port_map, GFP_KERNEL);
702 	if (!str)
703 		return;
704 
705 	/* Handle single mask case */
706 	if (!strchr(str, '=')) {
707 		ahci_apply_port_map_mask(dev, hpriv, str);
708 		goto free;
709 	}
710 
711 	/*
712 	 * Mask list case: parse the parameter to apply the mask only if
713 	 * the device name matches.
714 	 */
715 	param = str;
716 	end = param + strlen(param);
717 	while (param && param < end && *param) {
718 		name = param;
719 		param = strchr(name, '=');
720 		if (!param)
721 			break;
722 
723 		*param = '\0';
724 		param++;
725 		if (param >= end)
726 			break;
727 
728 		if (strcmp(dev_name(dev), name) != 0) {
729 			param = strchr(param, ',');
730 			if (param)
731 				param++;
732 			continue;
733 		}
734 
735 		mask_s = param;
736 		param = strchr(mask_s, ',');
737 		if (param) {
738 			*param = '\0';
739 			param++;
740 		}
741 
742 		ahci_apply_port_map_mask(dev, hpriv, mask_s);
743 	}
744 
745 free:
746 	kfree(str);
747 }
748 
749 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
750 					 struct ahci_host_priv *hpriv)
751 {
752 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
753 		dev_info(&pdev->dev, "JMB361 has only one port\n");
754 		hpriv->saved_port_map = 1;
755 	}
756 
757 	/*
758 	 * Temporary Marvell 6145 hack: PATA port presence
759 	 * is asserted through the standard AHCI port
760 	 * presence register, as bit 4 (counting from 0)
761 	 */
762 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
763 		if (pdev->device == 0x6121)
764 			hpriv->mask_port_map = 0x3;
765 		else
766 			hpriv->mask_port_map = 0xf;
767 		dev_info(&pdev->dev,
768 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
769 	}
770 
771 	/* Handle port map masks passed as module parameter. */
772 	if (ahci_mask_port_map)
773 		ahci_get_port_map_mask(&pdev->dev, hpriv);
774 
775 	ahci_save_initial_config(&pdev->dev, hpriv);
776 }
777 
778 static int ahci_pci_reset_controller(struct ata_host *host)
779 {
780 	struct pci_dev *pdev = to_pci_dev(host->dev);
781 	struct ahci_host_priv *hpriv = host->private_data;
782 	int rc;
783 
784 	rc = ahci_reset_controller(host);
785 	if (rc)
786 		return rc;
787 
788 	/*
789 	 * If platform firmware failed to enable ports, try to enable
790 	 * them here.
791 	 */
792 	ahci_intel_pcs_quirk(pdev, hpriv);
793 
794 	return 0;
795 }
796 
797 static void ahci_pci_init_controller(struct ata_host *host)
798 {
799 	struct ahci_host_priv *hpriv = host->private_data;
800 	struct pci_dev *pdev = to_pci_dev(host->dev);
801 	void __iomem *port_mmio;
802 	u32 tmp;
803 	int mv;
804 
805 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
806 		if (pdev->device == 0x6121)
807 			mv = 2;
808 		else
809 			mv = 4;
810 		port_mmio = __ahci_port_base(hpriv, mv);
811 
812 		writel(0, port_mmio + PORT_IRQ_MASK);
813 
814 		/* clear port IRQ */
815 		tmp = readl(port_mmio + PORT_IRQ_STAT);
816 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
817 		if (tmp)
818 			writel(tmp, port_mmio + PORT_IRQ_STAT);
819 	}
820 
821 	ahci_init_controller(host);
822 }
823 
824 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
825 				 unsigned long deadline)
826 {
827 	struct ata_port *ap = link->ap;
828 	struct ahci_host_priv *hpriv = ap->host->private_data;
829 	bool online;
830 	int rc;
831 
832 	hpriv->stop_engine(ap);
833 
834 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
835 				 deadline, &online, NULL);
836 
837 	hpriv->start_engine(ap);
838 
839 	/* vt8251 doesn't clear BSY on signature FIS reception,
840 	 * request follow-up softreset.
841 	 */
842 	return online ? -EAGAIN : rc;
843 }
844 
845 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
846 				unsigned long deadline)
847 {
848 	struct ata_port *ap = link->ap;
849 	struct ahci_port_priv *pp = ap->private_data;
850 	struct ahci_host_priv *hpriv = ap->host->private_data;
851 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
852 	struct ata_taskfile tf;
853 	bool online;
854 	int rc;
855 
856 	hpriv->stop_engine(ap);
857 
858 	/* clear D2H reception area to properly wait for D2H FIS */
859 	ata_tf_init(link->device, &tf);
860 	tf.status = ATA_BUSY;
861 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
862 
863 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
864 				 deadline, &online, NULL);
865 
866 	hpriv->start_engine(ap);
867 
868 	/* The pseudo configuration device on SIMG4726 attached to
869 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
870 	 * hardreset if no device is attached to the first downstream
871 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
872 	 * work around this, wait for !BSY only briefly.  If BSY isn't
873 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
874 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
875 	 *
876 	 * Wait for two seconds.  Devices attached to downstream port
877 	 * which can't process the following IDENTIFY after this will
878 	 * have to be reset again.  For most cases, this should
879 	 * suffice while making probing snappish enough.
880 	 */
881 	if (online) {
882 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
883 					  ahci_check_ready);
884 		if (rc)
885 			ahci_kick_engine(ap);
886 	}
887 	return rc;
888 }
889 
890 /*
891  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
892  *
893  * It has been observed with some SSDs that the timing of events in the
894  * link synchronization phase can leave the port in a state that can not
895  * be recovered by a SATA-hard-reset alone.  The failing signature is
896  * SStatus.DET stuck at 1 ("Device presence detected but Phy
897  * communication not established").  It was found that unloading and
898  * reloading the driver when this problem occurs allows the drive
899  * connection to be recovered (DET advanced to 0x3).  The critical
900  * component of reloading the driver is that the port state machines are
901  * reset by bouncing "port enable" in the AHCI PCS configuration
902  * register.  So, reproduce that effect by bouncing a port whenever we
903  * see DET==1 after a reset.
904  */
905 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
906 			      unsigned long deadline)
907 {
908 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
909 	struct ata_port *ap = link->ap;
910 	struct ahci_port_priv *pp = ap->private_data;
911 	struct ahci_host_priv *hpriv = ap->host->private_data;
912 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
913 	unsigned long tmo = deadline - jiffies;
914 	struct ata_taskfile tf;
915 	bool online;
916 	int rc, i;
917 
918 	hpriv->stop_engine(ap);
919 
920 	for (i = 0; i < 2; i++) {
921 		u16 val;
922 		u32 sstatus;
923 		int port = ap->port_no;
924 		struct ata_host *host = ap->host;
925 		struct pci_dev *pdev = to_pci_dev(host->dev);
926 
927 		/* clear D2H reception area to properly wait for D2H FIS */
928 		ata_tf_init(link->device, &tf);
929 		tf.status = ATA_BUSY;
930 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
931 
932 		rc = sata_link_hardreset(link, timing, deadline, &online,
933 				ahci_check_ready);
934 
935 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
936 				(sstatus & 0xf) != 1)
937 			break;
938 
939 		ata_link_info(link,  "avn bounce port%d\n", port);
940 
941 		pci_read_config_word(pdev, 0x92, &val);
942 		val &= ~(1 << port);
943 		pci_write_config_word(pdev, 0x92, val);
944 		ata_msleep(ap, 1000);
945 		val |= 1 << port;
946 		pci_write_config_word(pdev, 0x92, val);
947 		deadline += tmo;
948 	}
949 
950 	hpriv->start_engine(ap);
951 
952 	if (online)
953 		*class = ahci_dev_classify(ap);
954 
955 	return rc;
956 }
957 
958 
959 #ifdef CONFIG_PM
960 static void ahci_pci_disable_interrupts(struct ata_host *host)
961 {
962 	struct ahci_host_priv *hpriv = host->private_data;
963 	void __iomem *mmio = hpriv->mmio;
964 	u32 ctl;
965 
966 	/* AHCI spec rev1.1 section 8.3.3:
967 	 * Software must disable interrupts prior to requesting a
968 	 * transition of the HBA to D3 state.
969 	 */
970 	ctl = readl(mmio + HOST_CTL);
971 	ctl &= ~HOST_IRQ_EN;
972 	writel(ctl, mmio + HOST_CTL);
973 	readl(mmio + HOST_CTL); /* flush */
974 }
975 
976 static int ahci_pci_device_runtime_suspend(struct device *dev)
977 {
978 	struct pci_dev *pdev = to_pci_dev(dev);
979 	struct ata_host *host = pci_get_drvdata(pdev);
980 
981 	ahci_pci_disable_interrupts(host);
982 	return 0;
983 }
984 
985 static int ahci_pci_device_runtime_resume(struct device *dev)
986 {
987 	struct pci_dev *pdev = to_pci_dev(dev);
988 	struct ata_host *host = pci_get_drvdata(pdev);
989 	int rc;
990 
991 	rc = ahci_pci_reset_controller(host);
992 	if (rc)
993 		return rc;
994 	ahci_pci_init_controller(host);
995 	return 0;
996 }
997 
998 #ifdef CONFIG_PM_SLEEP
999 static int ahci_pci_device_suspend(struct device *dev)
1000 {
1001 	struct pci_dev *pdev = to_pci_dev(dev);
1002 	struct ata_host *host = pci_get_drvdata(pdev);
1003 	struct ahci_host_priv *hpriv = host->private_data;
1004 
1005 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
1006 		dev_err(&pdev->dev,
1007 			"BIOS update required for suspend/resume\n");
1008 		return -EIO;
1009 	}
1010 
1011 	ahci_pci_disable_interrupts(host);
1012 	ata_host_suspend(host, PMSG_SUSPEND);
1013 	return 0;
1014 }
1015 
1016 static int ahci_pci_device_resume(struct device *dev)
1017 {
1018 	struct pci_dev *pdev = to_pci_dev(dev);
1019 	struct ata_host *host = pci_get_drvdata(pdev);
1020 	int rc;
1021 
1022 	/* Apple BIOS helpfully mangles the registers on resume */
1023 	if (is_mcp89_apple(pdev))
1024 		ahci_mcp89_apple_enable(pdev);
1025 
1026 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
1027 		rc = ahci_pci_reset_controller(host);
1028 		if (rc)
1029 			return rc;
1030 
1031 		ahci_pci_init_controller(host);
1032 	}
1033 
1034 	ata_host_resume(host);
1035 
1036 	return 0;
1037 }
1038 #endif
1039 
1040 #endif /* CONFIG_PM */
1041 
1042 static int ahci_configure_dma_masks(struct pci_dev *pdev,
1043 				    struct ahci_host_priv *hpriv)
1044 {
1045 	int dma_bits;
1046 	int rc;
1047 
1048 	if (hpriv->cap & HOST_CAP_64) {
1049 		dma_bits = 64;
1050 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
1051 			dma_bits = 43;
1052 	} else {
1053 		dma_bits = 32;
1054 	}
1055 
1056 	/*
1057 	 * If the device fixup already set the dma_mask to some non-standard
1058 	 * value, don't extend it here. This happens on STA2X11, for example.
1059 	 *
1060 	 * XXX: manipulating the DMA mask from platform code is completely
1061 	 * bogus, platform code should use dev->bus_dma_limit instead..
1062 	 */
1063 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
1064 		return 0;
1065 
1066 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
1067 	if (rc)
1068 		dev_err(&pdev->dev, "DMA enable failed\n");
1069 	return rc;
1070 }
1071 
1072 static void ahci_pci_print_info(struct ata_host *host)
1073 {
1074 	struct pci_dev *pdev = to_pci_dev(host->dev);
1075 	u16 cc;
1076 	const char *scc_s;
1077 
1078 	pci_read_config_word(pdev, 0x0a, &cc);
1079 	if (cc == PCI_CLASS_STORAGE_IDE)
1080 		scc_s = "IDE";
1081 	else if (cc == PCI_CLASS_STORAGE_SATA)
1082 		scc_s = "SATA";
1083 	else if (cc == PCI_CLASS_STORAGE_RAID)
1084 		scc_s = "RAID";
1085 	else
1086 		scc_s = "unknown";
1087 
1088 	ahci_print_info(host, scc_s);
1089 }
1090 
1091 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1092  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1093  * support PMP and the 4726 either directly exports the device
1094  * attached to the first downstream port or acts as a hardware storage
1095  * controller and emulate a single ATA device (can be RAID 0/1 or some
1096  * other configuration).
1097  *
1098  * When there's no device attached to the first downstream port of the
1099  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1100  * configure the 4726.  However, ATA emulation of the device is very
1101  * lame.  It doesn't send signature D2H Reg FIS after the initial
1102  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1103  *
1104  * The following function works around the problem by always using
1105  * hardreset on the port and not depending on receiving signature FIS
1106  * afterward.  If signature FIS isn't received soon, ATA class is
1107  * assumed without follow-up softreset.
1108  */
1109 static void ahci_p5wdh_workaround(struct ata_host *host)
1110 {
1111 	static const struct dmi_system_id sysids[] = {
1112 		{
1113 			.ident = "P5W DH Deluxe",
1114 			.matches = {
1115 				DMI_MATCH(DMI_SYS_VENDOR,
1116 					  "ASUSTEK COMPUTER INC"),
1117 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1118 			},
1119 		},
1120 		{ }
1121 	};
1122 	struct pci_dev *pdev = to_pci_dev(host->dev);
1123 
1124 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1125 	    dmi_check_system(sysids)) {
1126 		struct ata_port *ap = host->ports[1];
1127 
1128 		dev_info(&pdev->dev,
1129 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1130 
1131 		ap->ops = &ahci_p5wdh_ops;
1132 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1133 	}
1134 }
1135 
1136 /*
1137  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1138  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1139  */
1140 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1141 {
1142 	u32 val;
1143 
1144 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1145 
1146 	pci_read_config_dword(pdev, 0xf8, &val);
1147 	val |= 1 << 0x1b;
1148 	/* the following changes the device ID, but appears not to affect function */
1149 	/* val = (val & ~0xf0000000) | 0x80000000; */
1150 	pci_write_config_dword(pdev, 0xf8, val);
1151 
1152 	pci_read_config_dword(pdev, 0x54c, &val);
1153 	val |= 1 << 0xc;
1154 	pci_write_config_dword(pdev, 0x54c, val);
1155 
1156 	pci_read_config_dword(pdev, 0x4a4, &val);
1157 	val &= 0xff;
1158 	val |= 0x01060100;
1159 	pci_write_config_dword(pdev, 0x4a4, val);
1160 
1161 	pci_read_config_dword(pdev, 0x54c, &val);
1162 	val &= ~(1 << 0xc);
1163 	pci_write_config_dword(pdev, 0x54c, val);
1164 
1165 	pci_read_config_dword(pdev, 0xf8, &val);
1166 	val &= ~(1 << 0x1b);
1167 	pci_write_config_dword(pdev, 0xf8, val);
1168 }
1169 
1170 static bool is_mcp89_apple(struct pci_dev *pdev)
1171 {
1172 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1173 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1174 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1175 		pdev->subsystem_device == 0xcb89;
1176 }
1177 
1178 /* only some SB600 ahci controllers can do 64bit DMA */
1179 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1180 {
1181 	static const struct dmi_system_id sysids[] = {
1182 		/*
1183 		 * The oldest version known to be broken is 0901 and
1184 		 * working is 1501 which was released on 2007-10-26.
1185 		 * Enable 64bit DMA on 1501 and anything newer.
1186 		 *
1187 		 * Please read bko#9412 for more info.
1188 		 */
1189 		{
1190 			.ident = "ASUS M2A-VM",
1191 			.matches = {
1192 				DMI_MATCH(DMI_BOARD_VENDOR,
1193 					  "ASUSTeK Computer INC."),
1194 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1195 			},
1196 			.driver_data = "20071026",	/* yyyymmdd */
1197 		},
1198 		/*
1199 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1200 		 * support 64bit DMA.
1201 		 *
1202 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1203 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1204 		 * This spelling mistake was fixed in BIOS version 1.5, so
1205 		 * 1.5 and later have the Manufacturer as
1206 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1207 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1208 		 *
1209 		 * BIOS versions earlier than 1.9 had a Board Product Name
1210 		 * DMI field of "MS-7376". This was changed to be
1211 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1212 		 * match on DMI_BOARD_NAME of "MS-7376".
1213 		 */
1214 		{
1215 			.ident = "MSI K9A2 Platinum",
1216 			.matches = {
1217 				DMI_MATCH(DMI_BOARD_VENDOR,
1218 					  "MICRO-STAR INTER"),
1219 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1220 			},
1221 		},
1222 		/*
1223 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1224 		 * 64bit DMA.
1225 		 *
1226 		 * This board also had the typo mentioned above in the
1227 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1228 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1229 		 */
1230 		{
1231 			.ident = "MSI K9AGM2",
1232 			.matches = {
1233 				DMI_MATCH(DMI_BOARD_VENDOR,
1234 					  "MICRO-STAR INTER"),
1235 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1236 			},
1237 		},
1238 		/*
1239 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1240 		 * (all release versions from 0301 to 1206 were tested)
1241 		 */
1242 		{
1243 			.ident = "ASUS M3A",
1244 			.matches = {
1245 				DMI_MATCH(DMI_BOARD_VENDOR,
1246 					  "ASUSTeK Computer INC."),
1247 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1248 			},
1249 		},
1250 		{ }
1251 	};
1252 	const struct dmi_system_id *match;
1253 	int year, month, date;
1254 	char buf[9];
1255 
1256 	match = dmi_first_match(sysids);
1257 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1258 	    !match)
1259 		return false;
1260 
1261 	if (!match->driver_data)
1262 		goto enable_64bit;
1263 
1264 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1265 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1266 
1267 	if (strcmp(buf, match->driver_data) >= 0)
1268 		goto enable_64bit;
1269 	else {
1270 		dev_warn(&pdev->dev,
1271 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1272 			 match->ident);
1273 		return false;
1274 	}
1275 
1276 enable_64bit:
1277 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1278 	return true;
1279 }
1280 
1281 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1282 {
1283 	static const struct dmi_system_id broken_systems[] = {
1284 		{
1285 			.ident = "HP Compaq nx6310",
1286 			.matches = {
1287 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1288 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1289 			},
1290 			/* PCI slot number of the controller */
1291 			.driver_data = (void *)0x1FUL,
1292 		},
1293 		{
1294 			.ident = "HP Compaq 6720s",
1295 			.matches = {
1296 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1297 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1298 			},
1299 			/* PCI slot number of the controller */
1300 			.driver_data = (void *)0x1FUL,
1301 		},
1302 
1303 		{ }	/* terminate list */
1304 	};
1305 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1306 
1307 	if (dmi) {
1308 		unsigned long slot = (unsigned long)dmi->driver_data;
1309 		/* apply the quirk only to on-board controllers */
1310 		return slot == PCI_SLOT(pdev->devfn);
1311 	}
1312 
1313 	return false;
1314 }
1315 
1316 static bool ahci_broken_suspend(struct pci_dev *pdev)
1317 {
1318 	static const struct dmi_system_id sysids[] = {
1319 		/*
1320 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1321 		 * to the harddisk doesn't become online after
1322 		 * resuming from STR.  Warn and fail suspend.
1323 		 *
1324 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1325 		 *
1326 		 * Use dates instead of versions to match as HP is
1327 		 * apparently recycling both product and version
1328 		 * strings.
1329 		 *
1330 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1331 		 */
1332 		{
1333 			.ident = "dv4",
1334 			.matches = {
1335 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1336 				DMI_MATCH(DMI_PRODUCT_NAME,
1337 					  "HP Pavilion dv4 Notebook PC"),
1338 			},
1339 			.driver_data = "20090105",	/* F.30 */
1340 		},
1341 		{
1342 			.ident = "dv5",
1343 			.matches = {
1344 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1345 				DMI_MATCH(DMI_PRODUCT_NAME,
1346 					  "HP Pavilion dv5 Notebook PC"),
1347 			},
1348 			.driver_data = "20090506",	/* F.16 */
1349 		},
1350 		{
1351 			.ident = "dv6",
1352 			.matches = {
1353 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1354 				DMI_MATCH(DMI_PRODUCT_NAME,
1355 					  "HP Pavilion dv6 Notebook PC"),
1356 			},
1357 			.driver_data = "20090423",	/* F.21 */
1358 		},
1359 		{
1360 			.ident = "HDX18",
1361 			.matches = {
1362 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1363 				DMI_MATCH(DMI_PRODUCT_NAME,
1364 					  "HP HDX18 Notebook PC"),
1365 			},
1366 			.driver_data = "20090430",	/* F.23 */
1367 		},
1368 		/*
1369 		 * Acer eMachines G725 has the same problem.  BIOS
1370 		 * V1.03 is known to be broken.  V3.04 is known to
1371 		 * work.  Between, there are V1.06, V2.06 and V3.03
1372 		 * that we don't have much idea about.  For now,
1373 		 * blacklist anything older than V3.04.
1374 		 *
1375 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1376 		 */
1377 		{
1378 			.ident = "G725",
1379 			.matches = {
1380 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1381 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1382 			},
1383 			.driver_data = "20091216",	/* V3.04 */
1384 		},
1385 		{ }	/* terminate list */
1386 	};
1387 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1388 	int year, month, date;
1389 	char buf[9];
1390 
1391 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1392 		return false;
1393 
1394 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1395 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1396 
1397 	return strcmp(buf, dmi->driver_data) < 0;
1398 }
1399 
1400 static bool ahci_broken_lpm(struct pci_dev *pdev)
1401 {
1402 	static const struct dmi_system_id sysids[] = {
1403 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1404 		{
1405 			.matches = {
1406 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1407 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1408 			},
1409 			.driver_data = "20180406", /* 1.31 */
1410 		},
1411 		{
1412 			.matches = {
1413 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1414 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1415 			},
1416 			.driver_data = "20180420", /* 1.28 */
1417 		},
1418 		{
1419 			.matches = {
1420 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1421 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1422 			},
1423 			.driver_data = "20180315", /* 1.33 */
1424 		},
1425 		{
1426 			.matches = {
1427 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1428 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1429 			},
1430 			/*
1431 			 * Note date based on release notes, 2.35 has been
1432 			 * reported to be good, but I've been unable to get
1433 			 * a hold of the reporter to get the DMI BIOS date.
1434 			 * TODO: fix this.
1435 			 */
1436 			.driver_data = "20180310", /* 2.35 */
1437 		},
1438 		{ }	/* terminate list */
1439 	};
1440 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1441 	int year, month, date;
1442 	char buf[9];
1443 
1444 	if (!dmi)
1445 		return false;
1446 
1447 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1448 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1449 
1450 	return strcmp(buf, dmi->driver_data) < 0;
1451 }
1452 
1453 static bool ahci_broken_online(struct pci_dev *pdev)
1454 {
1455 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1456 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1457 	static const struct dmi_system_id sysids[] = {
1458 		/*
1459 		 * There are several gigabyte boards which use
1460 		 * SIMG5723s configured as hardware RAID.  Certain
1461 		 * 5723 firmware revisions shipped there keep the link
1462 		 * online but fail to answer properly to SRST or
1463 		 * IDENTIFY when no device is attached downstream
1464 		 * causing libata to retry quite a few times leading
1465 		 * to excessive detection delay.
1466 		 *
1467 		 * As these firmwares respond to the second reset try
1468 		 * with invalid device signature, considering unknown
1469 		 * sig as offline works around the problem acceptably.
1470 		 */
1471 		{
1472 			.ident = "EP45-DQ6",
1473 			.matches = {
1474 				DMI_MATCH(DMI_BOARD_VENDOR,
1475 					  "Gigabyte Technology Co., Ltd."),
1476 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1477 			},
1478 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1479 		},
1480 		{
1481 			.ident = "EP45-DS5",
1482 			.matches = {
1483 				DMI_MATCH(DMI_BOARD_VENDOR,
1484 					  "Gigabyte Technology Co., Ltd."),
1485 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1486 			},
1487 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1488 		},
1489 		{ }	/* terminate list */
1490 	};
1491 #undef ENCODE_BUSDEVFN
1492 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1493 	unsigned int val;
1494 
1495 	if (!dmi)
1496 		return false;
1497 
1498 	val = (unsigned long)dmi->driver_data;
1499 
1500 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1501 }
1502 
1503 #ifdef CONFIG_ATA_ACPI
1504 static void ahci_gtf_filter_workaround(struct ata_host *host)
1505 {
1506 	static const struct dmi_system_id sysids[] = {
1507 		/*
1508 		 * Aspire 3810T issues a bunch of SATA enable commands
1509 		 * via _GTF including an invalid one and one which is
1510 		 * rejected by the device.  Among the successful ones
1511 		 * is FPDMA non-zero offset enable which when enabled
1512 		 * only on the drive side leads to NCQ command
1513 		 * failures.  Filter it out.
1514 		 */
1515 		{
1516 			.ident = "Aspire 3810T",
1517 			.matches = {
1518 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1519 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1520 			},
1521 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1522 		},
1523 		{ }
1524 	};
1525 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1526 	unsigned int filter;
1527 	int i;
1528 
1529 	if (!dmi)
1530 		return;
1531 
1532 	filter = (unsigned long)dmi->driver_data;
1533 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1534 		 filter, dmi->ident);
1535 
1536 	for (i = 0; i < host->n_ports; i++) {
1537 		struct ata_port *ap = host->ports[i];
1538 		struct ata_link *link;
1539 		struct ata_device *dev;
1540 
1541 		ata_for_each_link(link, ap, EDGE)
1542 			ata_for_each_dev(dev, link, ALL)
1543 				dev->gtf_filter |= filter;
1544 	}
1545 }
1546 #else
1547 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1548 {}
1549 #endif
1550 
1551 /*
1552  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1553  * as DUMMY, or detected but eventually get a "link down" and never get up
1554  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1555  * port_map may hold a value of 0x00.
1556  *
1557  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1558  * and can significantly reduce the occurrence of the problem.
1559  *
1560  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1561  */
1562 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1563 				    struct pci_dev *pdev)
1564 {
1565 	static const struct dmi_system_id sysids[] = {
1566 		{
1567 			.ident = "Acer Switch Alpha 12",
1568 			.matches = {
1569 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1570 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1571 			},
1572 		},
1573 		{ }
1574 	};
1575 
1576 	if (dmi_check_system(sysids)) {
1577 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1578 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1579 			hpriv->port_map = 0x7;
1580 			hpriv->cap = 0xC734FF02;
1581 		}
1582 	}
1583 }
1584 
1585 #ifdef CONFIG_ARM64
1586 /*
1587  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1588  * Workaround is to make sure all pending IRQs are served before leaving
1589  * handler.
1590  */
1591 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1592 {
1593 	struct ata_host *host = dev_instance;
1594 	struct ahci_host_priv *hpriv;
1595 	unsigned int rc = 0;
1596 	void __iomem *mmio;
1597 	u32 irq_stat, irq_masked;
1598 	unsigned int handled = 1;
1599 
1600 	hpriv = host->private_data;
1601 	mmio = hpriv->mmio;
1602 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1603 	if (!irq_stat)
1604 		return IRQ_NONE;
1605 
1606 	do {
1607 		irq_masked = irq_stat & hpriv->port_map;
1608 		spin_lock(&host->lock);
1609 		rc = ahci_handle_port_intr(host, irq_masked);
1610 		if (!rc)
1611 			handled = 0;
1612 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1613 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1614 		spin_unlock(&host->lock);
1615 	} while (irq_stat);
1616 
1617 	return IRQ_RETVAL(handled);
1618 }
1619 #endif
1620 
1621 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1622 		struct ahci_host_priv *hpriv)
1623 {
1624 	int i;
1625 	u32 cap;
1626 
1627 	/*
1628 	 * Check if this device might have remapped nvme devices.
1629 	 */
1630 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1631 	    pci_resource_len(pdev, bar) < SZ_512K ||
1632 	    bar != AHCI_PCI_BAR_STANDARD ||
1633 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1634 		return;
1635 
1636 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1637 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1638 		if ((cap & (1 << i)) == 0)
1639 			continue;
1640 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1641 				!= PCI_CLASS_STORAGE_EXPRESS)
1642 			continue;
1643 
1644 		/* We've found a remapped device */
1645 		hpriv->remapped_nvme++;
1646 	}
1647 
1648 	if (!hpriv->remapped_nvme)
1649 		return;
1650 
1651 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1652 		 hpriv->remapped_nvme);
1653 	dev_warn(&pdev->dev,
1654 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1655 
1656 	/*
1657 	 * Don't rely on the msi-x capability in the remap case,
1658 	 * share the legacy interrupt across ahci and remapped devices.
1659 	 */
1660 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1661 }
1662 
1663 static int ahci_get_irq_vector(struct ata_host *host, int port)
1664 {
1665 	return pci_irq_vector(to_pci_dev(host->dev), port);
1666 }
1667 
1668 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1669 			struct ahci_host_priv *hpriv)
1670 {
1671 	int nvec;
1672 
1673 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1674 		return -ENODEV;
1675 
1676 	/*
1677 	 * If number of MSIs is less than number of ports then Sharing Last
1678 	 * Message mode could be enforced. In this case assume that advantage
1679 	 * of multipe MSIs is negated and use single MSI mode instead.
1680 	 */
1681 	if (n_ports > 1) {
1682 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1683 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1684 		if (nvec > 0) {
1685 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1686 				hpriv->get_irq_vector = ahci_get_irq_vector;
1687 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1688 				return nvec;
1689 			}
1690 
1691 			/*
1692 			 * Fallback to single MSI mode if the controller
1693 			 * enforced MRSM mode.
1694 			 */
1695 			printk(KERN_INFO
1696 				"ahci: MRSM is on, fallback to single MSI\n");
1697 			pci_free_irq_vectors(pdev);
1698 		}
1699 	}
1700 
1701 	/*
1702 	 * If the host is not capable of supporting per-port vectors, fall
1703 	 * back to single MSI before finally attempting single MSI-X.
1704 	 */
1705 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1706 	if (nvec == 1)
1707 		return nvec;
1708 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1709 }
1710 
1711 static void ahci_mark_external_port(struct ata_port *ap)
1712 {
1713 	struct ahci_host_priv *hpriv = ap->host->private_data;
1714 	void __iomem *port_mmio = ahci_port_base(ap);
1715 	u32 tmp;
1716 
1717 	/* mark external ports (hotplug-capable, eSATA) */
1718 	tmp = readl(port_mmio + PORT_CMD);
1719 	if (((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) ||
1720 	    (tmp & PORT_CMD_HPCP))
1721 		ap->pflags |= ATA_PFLAG_EXTERNAL;
1722 }
1723 
1724 static void ahci_update_initial_lpm_policy(struct ata_port *ap)
1725 {
1726 	struct ahci_host_priv *hpriv = ap->host->private_data;
1727 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1728 
1729 	/*
1730 	 * AHCI contains a known incompatibility between LPM and hot-plug
1731 	 * removal events, see 7.3.1 Hot Plug Removal Detection and Power
1732 	 * Management Interaction in AHCI 1.3.1. Therefore, do not enable
1733 	 * LPM if the port advertises itself as an external port.
1734 	 */
1735 	if (ap->pflags & ATA_PFLAG_EXTERNAL) {
1736 		ata_port_dbg(ap, "external port, not enabling LPM\n");
1737 		return;
1738 	}
1739 
1740 	/* If no LPM states are supported by the HBA, do not bother with LPM */
1741 	if ((ap->host->flags & ATA_HOST_NO_PART) &&
1742 	    (ap->host->flags & ATA_HOST_NO_SSC) &&
1743 	    (ap->host->flags & ATA_HOST_NO_DEVSLP)) {
1744 		ata_port_dbg(ap, "no LPM states supported, not enabling LPM\n");
1745 		return;
1746 	}
1747 
1748 	/* user modified policy via module param */
1749 	if (mobile_lpm_policy != -1) {
1750 		policy = mobile_lpm_policy;
1751 		goto update_policy;
1752 	}
1753 
1754 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1755 		if (hpriv->cap & HOST_CAP_PART)
1756 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1757 		else if (hpriv->cap & HOST_CAP_SSC)
1758 			policy = ATA_LPM_MIN_POWER;
1759 	}
1760 
1761 update_policy:
1762 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1763 		ap->target_lpm_policy = policy;
1764 }
1765 
1766 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1767 {
1768 	u16 tmp16;
1769 
1770 	if (!(hpriv->flags & AHCI_HFLAG_INTEL_PCS_QUIRK))
1771 		return;
1772 
1773 	/*
1774 	 * port_map is determined from PORTS_IMPL PCI register which is
1775 	 * implemented as write or write-once register.  If the register
1776 	 * isn't programmed, ahci automatically generates it from number
1777 	 * of ports, which is good enough for PCS programming. It is
1778 	 * otherwise expected that platform firmware enables the ports
1779 	 * before the OS boots.
1780 	 */
1781 	pci_read_config_word(pdev, PCS_6, &tmp16);
1782 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1783 		tmp16 |= hpriv->port_map;
1784 		pci_write_config_word(pdev, PCS_6, tmp16);
1785 	}
1786 }
1787 
1788 static ssize_t remapped_nvme_show(struct device *dev,
1789 				  struct device_attribute *attr,
1790 				  char *buf)
1791 {
1792 	struct ata_host *host = dev_get_drvdata(dev);
1793 	struct ahci_host_priv *hpriv = host->private_data;
1794 
1795 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1796 }
1797 
1798 static DEVICE_ATTR_RO(remapped_nvme);
1799 
1800 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1801 {
1802 	unsigned int board_id = ent->driver_data;
1803 	struct ata_port_info pi = ahci_port_info[board_id];
1804 	const struct ata_port_info *ppi[] = { &pi, NULL };
1805 	struct device *dev = &pdev->dev;
1806 	struct ahci_host_priv *hpriv;
1807 	struct ata_host *host;
1808 	int n_ports, i, rc;
1809 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1810 
1811 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1812 
1813 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1814 
1815 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1816 	   can drive them all so if both drivers are selected make sure
1817 	   AHCI stays out of the way */
1818 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1819 		return -ENODEV;
1820 
1821 	/* Apple BIOS on MCP89 prevents us using AHCI */
1822 	if (is_mcp89_apple(pdev))
1823 		ahci_mcp89_apple_enable(pdev);
1824 
1825 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1826 	 * At the moment, we can only use the AHCI mode. Let the users know
1827 	 * that for SAS drives they're out of luck.
1828 	 */
1829 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1830 		dev_info(&pdev->dev,
1831 			 "PDC42819 can only drive SATA devices with this driver\n");
1832 
1833 	/* Some devices use non-standard BARs */
1834 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1835 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1836 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1837 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1838 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1839 		if (pdev->device == 0xa01c)
1840 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1841 		if (pdev->device == 0xa084)
1842 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1843 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1844 		if (pdev->device == 0x7a08)
1845 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1846 	}
1847 
1848 	/* acquire resources */
1849 	rc = pcim_enable_device(pdev);
1850 	if (rc)
1851 		return rc;
1852 
1853 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1854 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1855 		u8 map;
1856 
1857 		/* ICH6s share the same PCI ID for both piix and ahci
1858 		 * modes.  Enabling ahci mode while MAP indicates
1859 		 * combined mode is a bad idea.  Yield to ata_piix.
1860 		 */
1861 		pci_read_config_byte(pdev, ICH_MAP, &map);
1862 		if (map & 0x3) {
1863 			dev_info(&pdev->dev,
1864 				 "controller is in combined mode, can't enable AHCI mode\n");
1865 			return -ENODEV;
1866 		}
1867 	}
1868 
1869 	/* AHCI controllers often implement SFF compatible interface.
1870 	 * Grab all PCI BARs just in case.
1871 	 */
1872 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1873 	if (rc == -EBUSY)
1874 		pcim_pin_device(pdev);
1875 	if (rc)
1876 		return rc;
1877 
1878 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1879 	if (!hpriv)
1880 		return -ENOMEM;
1881 	hpriv->flags |= (unsigned long)pi.private_data;
1882 
1883 	/* MCP65 revision A1 and A2 can't do MSI */
1884 	if (board_id == board_ahci_mcp65 &&
1885 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1886 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1887 
1888 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1889 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1890 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1891 
1892 	/* only some SB600s can do 64bit DMA */
1893 	if (ahci_sb600_enable_64bit(pdev))
1894 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1895 
1896 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1897 
1898 	/* detect remapped nvme devices */
1899 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1900 
1901 	sysfs_add_file_to_group(&pdev->dev.kobj,
1902 				&dev_attr_remapped_nvme.attr,
1903 				NULL);
1904 
1905 #ifdef CONFIG_ARM64
1906 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1907 	    pdev->device == 0xa235 &&
1908 	    pdev->revision < 0x30)
1909 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1910 
1911 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1912 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1913 #endif
1914 
1915 	/* save initial config */
1916 	ahci_pci_save_initial_config(pdev, hpriv);
1917 
1918 	/* prepare host */
1919 	if (hpriv->cap & HOST_CAP_NCQ) {
1920 		pi.flags |= ATA_FLAG_NCQ;
1921 		/*
1922 		 * Auto-activate optimization is supposed to be
1923 		 * supported on all AHCI controllers indicating NCQ
1924 		 * capability, but it seems to be broken on some
1925 		 * chipsets including NVIDIAs.
1926 		 */
1927 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1928 			pi.flags |= ATA_FLAG_FPDMA_AA;
1929 
1930 		/*
1931 		 * All AHCI controllers should be forward-compatible
1932 		 * with the new auxiliary field. This code should be
1933 		 * conditionalized if any buggy AHCI controllers are
1934 		 * encountered.
1935 		 */
1936 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1937 	}
1938 
1939 	if (hpriv->cap & HOST_CAP_PMP)
1940 		pi.flags |= ATA_FLAG_PMP;
1941 
1942 	ahci_set_em_messages(hpriv, &pi);
1943 
1944 	if (ahci_broken_system_poweroff(pdev)) {
1945 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1946 		dev_info(&pdev->dev,
1947 			"quirky BIOS, skipping spindown on poweroff\n");
1948 	}
1949 
1950 	if (ahci_broken_lpm(pdev)) {
1951 		pi.flags |= ATA_FLAG_NO_LPM;
1952 		dev_warn(&pdev->dev,
1953 			 "BIOS update required for Link Power Management support\n");
1954 	}
1955 
1956 	if (ahci_broken_suspend(pdev)) {
1957 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1958 		dev_warn(&pdev->dev,
1959 			 "BIOS update required for suspend/resume\n");
1960 	}
1961 
1962 	if (ahci_broken_online(pdev)) {
1963 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1964 		dev_info(&pdev->dev,
1965 			 "online status unreliable, applying workaround\n");
1966 	}
1967 
1968 
1969 	/* Acer SA5-271 workaround modifies private_data */
1970 	acer_sa5_271_workaround(hpriv, pdev);
1971 
1972 	/* CAP.NP sometimes indicate the index of the last enabled
1973 	 * port, at other times, that of the last possible port, so
1974 	 * determining the maximum port number requires looking at
1975 	 * both CAP.NP and port_map.
1976 	 */
1977 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1978 
1979 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1980 	if (!host) {
1981 		rc = -ENOMEM;
1982 		goto err_rm_sysfs_file;
1983 	}
1984 	host->private_data = hpriv;
1985 
1986 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1987 		/* legacy intx interrupts */
1988 		pci_intx(pdev, 1);
1989 	}
1990 	hpriv->irq = pci_irq_vector(pdev, 0);
1991 
1992 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1993 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1994 	else
1995 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1996 
1997 	if (!(hpriv->cap & HOST_CAP_PART))
1998 		host->flags |= ATA_HOST_NO_PART;
1999 
2000 	if (!(hpriv->cap & HOST_CAP_SSC))
2001 		host->flags |= ATA_HOST_NO_SSC;
2002 
2003 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
2004 		host->flags |= ATA_HOST_NO_DEVSLP;
2005 
2006 	if (pi.flags & ATA_FLAG_EM)
2007 		ahci_reset_em(host);
2008 
2009 	for (i = 0; i < host->n_ports; i++) {
2010 		struct ata_port *ap = host->ports[i];
2011 
2012 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
2013 		ata_port_pbar_desc(ap, ahci_pci_bar,
2014 				   0x100 + ap->port_no * 0x80, "port");
2015 
2016 		/* set enclosure management message type */
2017 		if (ap->flags & ATA_FLAG_EM)
2018 			ap->em_message_type = hpriv->em_msg_type;
2019 
2020 		ahci_mark_external_port(ap);
2021 
2022 		ahci_update_initial_lpm_policy(ap);
2023 
2024 		/* disabled/not-implemented port */
2025 		if (!(hpriv->port_map & (1 << i)))
2026 			ap->ops = &ata_dummy_port_ops;
2027 	}
2028 
2029 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
2030 	ahci_p5wdh_workaround(host);
2031 
2032 	/* apply gtf filter quirk */
2033 	ahci_gtf_filter_workaround(host);
2034 
2035 	/* initialize adapter */
2036 	rc = ahci_configure_dma_masks(pdev, hpriv);
2037 	if (rc)
2038 		goto err_rm_sysfs_file;
2039 
2040 	rc = ahci_pci_reset_controller(host);
2041 	if (rc)
2042 		goto err_rm_sysfs_file;
2043 
2044 	ahci_pci_init_controller(host);
2045 	ahci_pci_print_info(host);
2046 
2047 	pci_set_master(pdev);
2048 
2049 	rc = ahci_host_activate(host, &ahci_sht);
2050 	if (rc)
2051 		goto err_rm_sysfs_file;
2052 
2053 	pm_runtime_put_noidle(&pdev->dev);
2054 	return 0;
2055 
2056 err_rm_sysfs_file:
2057 	sysfs_remove_file_from_group(&pdev->dev.kobj,
2058 				     &dev_attr_remapped_nvme.attr, NULL);
2059 	return rc;
2060 }
2061 
2062 static void ahci_shutdown_one(struct pci_dev *pdev)
2063 {
2064 	ata_pci_shutdown_one(pdev);
2065 }
2066 
2067 static void ahci_remove_one(struct pci_dev *pdev)
2068 {
2069 	sysfs_remove_file_from_group(&pdev->dev.kobj,
2070 				     &dev_attr_remapped_nvme.attr,
2071 				     NULL);
2072 	pm_runtime_get_noresume(&pdev->dev);
2073 	ata_pci_remove_one(pdev);
2074 }
2075 
2076 module_pci_driver(ahci_pci_driver);
2077 
2078 MODULE_AUTHOR("Jeff Garzik");
2079 MODULE_DESCRIPTION("AHCI SATA low-level driver");
2080 MODULE_LICENSE("GPL");
2081 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
2082 MODULE_VERSION(DRV_VERSION);
2083