xref: /linux/drivers/ata/ahci.c (revision 24168c5e6dfbdd5b414f048f47f75d64533296ca)
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 	{ PCI_VDEVICE(INTEL, 0x7ae2), board_ahci_pcs_quirk }, /* Alder Lake-P AHCI */
433 
434 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
435 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
436 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
437 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
438 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
439 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
440 	/* May need to update quirk_jmicron_async_suspend() for additions */
441 
442 	/* ATI */
443 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
444 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
445 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
446 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
447 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
448 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
449 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
450 
451 	/* Amazon's Annapurna Labs support */
452 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
453 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
454 		.class_mask = 0xffffff,
455 		board_ahci_al },
456 	/* AMD */
457 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
458 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
459 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
460 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci }, /* AMD Green Sardine */
461 	/* AMD is using RAID class only for ahci controllers */
462 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
463 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
464 
465 	/* Dell S140/S150 */
466 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
467 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci_pcs_quirk },
468 
469 	/* VIA */
470 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
471 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
472 
473 	/* NVIDIA */
474 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
475 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
476 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
477 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
478 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
479 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
480 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
481 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
482 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
483 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
486 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
487 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
488 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
489 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
490 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
491 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
492 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
493 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
494 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
495 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
502 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
503 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
504 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
505 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
506 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
507 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
508 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
509 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
510 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
511 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
514 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
515 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
516 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
517 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
518 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
519 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
520 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
521 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
549 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
550 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
551 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
552 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
553 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
554 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
555 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
556 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
557 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
558 
559 	/* SiS */
560 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
561 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
562 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
563 
564 	/* ST Microelectronics */
565 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
566 
567 	/* Marvell */
568 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
569 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
570 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
571 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
572 	  .class_mask = 0xffffff,
573 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
574 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
575 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
576 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
577 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
578 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
579 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
580 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
581 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
582 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
583 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
584 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
585 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
586 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
587 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
588 	  .driver_data = board_ahci_yes_fbs },
589 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
590 	  .driver_data = board_ahci_yes_fbs },
591 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
592 	  .driver_data = board_ahci_yes_fbs },
593 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
594 	  .driver_data = board_ahci_yes_fbs },
595 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
596 	  .driver_data = board_ahci_no_debounce_delay },
597 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
598 	  .driver_data = board_ahci_yes_fbs },
599 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
600 	  .driver_data = board_ahci_yes_fbs },
601 
602 	/* Promise */
603 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
604 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
605 
606 	/* ASMedia */
607 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci_43bit_dma },	/* ASM1060 */
608 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci_43bit_dma },	/* ASM1060 */
609 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci_43bit_dma },	/* ASM1061 */
610 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci_43bit_dma },	/* ASM1061/1062 */
611 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci_43bit_dma },	/* ASM1061R */
612 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci_43bit_dma },	/* ASM1062R */
613 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci_43bit_dma },	/* ASM1062+JMB575 */
614 	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
615 	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
616 	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
617 	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
618 	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
619 
620 	/*
621 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
622 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
623 	 */
624 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_no_msi },
625 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_no_msi },
626 
627 	/* Enmotus */
628 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
629 
630 	/* Loongson */
631 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
632 
633 	/* Generic, PCI class code for AHCI */
634 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
635 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
636 
637 	{ }	/* terminate list */
638 };
639 
640 static const struct dev_pm_ops ahci_pci_pm_ops = {
641 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
642 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
643 			   ahci_pci_device_runtime_resume, NULL)
644 };
645 
646 static struct pci_driver ahci_pci_driver = {
647 	.name			= DRV_NAME,
648 	.id_table		= ahci_pci_tbl,
649 	.probe			= ahci_init_one,
650 	.remove			= ahci_remove_one,
651 	.shutdown		= ahci_shutdown_one,
652 	.driver = {
653 		.pm		= &ahci_pci_pm_ops,
654 	},
655 };
656 
657 #if IS_ENABLED(CONFIG_PATA_MARVELL)
658 static int marvell_enable;
659 #else
660 static int marvell_enable = 1;
661 #endif
662 module_param(marvell_enable, int, 0644);
663 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
664 
665 static int mobile_lpm_policy = -1;
666 module_param(mobile_lpm_policy, int, 0644);
667 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
668 
669 static char *ahci_mask_port_map;
670 module_param_named(mask_port_map, ahci_mask_port_map, charp, 0444);
671 MODULE_PARM_DESC(mask_port_map,
672 		 "32-bits port map masks to ignore controllers ports. "
673 		 "Valid values are: "
674 		 "\"<mask>\" to apply the same mask to all AHCI controller "
675 		 "devices, and \"<pci_dev>=<mask>,<pci_dev>=<mask>,...\" to "
676 		 "specify different masks for the controllers specified, "
677 		 "where <pci_dev> is the PCI ID of an AHCI controller in the "
678 		 "form \"domain:bus:dev.func\"");
679 
680 static void ahci_apply_port_map_mask(struct device *dev,
681 				     struct ahci_host_priv *hpriv, char *mask_s)
682 {
683 	unsigned int mask;
684 
685 	if (kstrtouint(mask_s, 0, &mask)) {
686 		dev_err(dev, "Invalid port map mask\n");
687 		return;
688 	}
689 
690 	hpriv->mask_port_map = mask;
691 }
692 
693 static void ahci_get_port_map_mask(struct device *dev,
694 				   struct ahci_host_priv *hpriv)
695 {
696 	char *param, *end, *str, *mask_s;
697 	char *name;
698 
699 	if (!strlen(ahci_mask_port_map))
700 		return;
701 
702 	str = kstrdup(ahci_mask_port_map, GFP_KERNEL);
703 	if (!str)
704 		return;
705 
706 	/* Handle single mask case */
707 	if (!strchr(str, '=')) {
708 		ahci_apply_port_map_mask(dev, hpriv, str);
709 		goto free;
710 	}
711 
712 	/*
713 	 * Mask list case: parse the parameter to apply the mask only if
714 	 * the device name matches.
715 	 */
716 	param = str;
717 	end = param + strlen(param);
718 	while (param && param < end && *param) {
719 		name = param;
720 		param = strchr(name, '=');
721 		if (!param)
722 			break;
723 
724 		*param = '\0';
725 		param++;
726 		if (param >= end)
727 			break;
728 
729 		if (strcmp(dev_name(dev), name) != 0) {
730 			param = strchr(param, ',');
731 			if (param)
732 				param++;
733 			continue;
734 		}
735 
736 		mask_s = param;
737 		param = strchr(mask_s, ',');
738 		if (param) {
739 			*param = '\0';
740 			param++;
741 		}
742 
743 		ahci_apply_port_map_mask(dev, hpriv, mask_s);
744 	}
745 
746 free:
747 	kfree(str);
748 }
749 
750 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
751 					 struct ahci_host_priv *hpriv)
752 {
753 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
754 		dev_info(&pdev->dev, "JMB361 has only one port\n");
755 		hpriv->saved_port_map = 1;
756 	}
757 
758 	/*
759 	 * Temporary Marvell 6145 hack: PATA port presence
760 	 * is asserted through the standard AHCI port
761 	 * presence register, as bit 4 (counting from 0)
762 	 */
763 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
764 		if (pdev->device == 0x6121)
765 			hpriv->mask_port_map = 0x3;
766 		else
767 			hpriv->mask_port_map = 0xf;
768 		dev_info(&pdev->dev,
769 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
770 	}
771 
772 	/* Handle port map masks passed as module parameter. */
773 	if (ahci_mask_port_map)
774 		ahci_get_port_map_mask(&pdev->dev, hpriv);
775 
776 	ahci_save_initial_config(&pdev->dev, hpriv);
777 }
778 
779 static int ahci_pci_reset_controller(struct ata_host *host)
780 {
781 	struct pci_dev *pdev = to_pci_dev(host->dev);
782 	struct ahci_host_priv *hpriv = host->private_data;
783 	int rc;
784 
785 	rc = ahci_reset_controller(host);
786 	if (rc)
787 		return rc;
788 
789 	/*
790 	 * If platform firmware failed to enable ports, try to enable
791 	 * them here.
792 	 */
793 	ahci_intel_pcs_quirk(pdev, hpriv);
794 
795 	return 0;
796 }
797 
798 static void ahci_pci_init_controller(struct ata_host *host)
799 {
800 	struct ahci_host_priv *hpriv = host->private_data;
801 	struct pci_dev *pdev = to_pci_dev(host->dev);
802 	void __iomem *port_mmio;
803 	u32 tmp;
804 	int mv;
805 
806 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
807 		if (pdev->device == 0x6121)
808 			mv = 2;
809 		else
810 			mv = 4;
811 		port_mmio = __ahci_port_base(hpriv, mv);
812 
813 		writel(0, port_mmio + PORT_IRQ_MASK);
814 
815 		/* clear port IRQ */
816 		tmp = readl(port_mmio + PORT_IRQ_STAT);
817 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
818 		if (tmp)
819 			writel(tmp, port_mmio + PORT_IRQ_STAT);
820 	}
821 
822 	ahci_init_controller(host);
823 }
824 
825 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
826 				 unsigned long deadline)
827 {
828 	struct ata_port *ap = link->ap;
829 	struct ahci_host_priv *hpriv = ap->host->private_data;
830 	bool online;
831 	int rc;
832 
833 	hpriv->stop_engine(ap);
834 
835 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
836 				 deadline, &online, NULL);
837 
838 	hpriv->start_engine(ap);
839 
840 	/* vt8251 doesn't clear BSY on signature FIS reception,
841 	 * request follow-up softreset.
842 	 */
843 	return online ? -EAGAIN : rc;
844 }
845 
846 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
847 				unsigned long deadline)
848 {
849 	struct ata_port *ap = link->ap;
850 	struct ahci_port_priv *pp = ap->private_data;
851 	struct ahci_host_priv *hpriv = ap->host->private_data;
852 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
853 	struct ata_taskfile tf;
854 	bool online;
855 	int rc;
856 
857 	hpriv->stop_engine(ap);
858 
859 	/* clear D2H reception area to properly wait for D2H FIS */
860 	ata_tf_init(link->device, &tf);
861 	tf.status = ATA_BUSY;
862 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
863 
864 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
865 				 deadline, &online, NULL);
866 
867 	hpriv->start_engine(ap);
868 
869 	/* The pseudo configuration device on SIMG4726 attached to
870 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
871 	 * hardreset if no device is attached to the first downstream
872 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
873 	 * work around this, wait for !BSY only briefly.  If BSY isn't
874 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
875 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
876 	 *
877 	 * Wait for two seconds.  Devices attached to downstream port
878 	 * which can't process the following IDENTIFY after this will
879 	 * have to be reset again.  For most cases, this should
880 	 * suffice while making probing snappish enough.
881 	 */
882 	if (online) {
883 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
884 					  ahci_check_ready);
885 		if (rc)
886 			ahci_kick_engine(ap);
887 	}
888 	return rc;
889 }
890 
891 /*
892  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
893  *
894  * It has been observed with some SSDs that the timing of events in the
895  * link synchronization phase can leave the port in a state that can not
896  * be recovered by a SATA-hard-reset alone.  The failing signature is
897  * SStatus.DET stuck at 1 ("Device presence detected but Phy
898  * communication not established").  It was found that unloading and
899  * reloading the driver when this problem occurs allows the drive
900  * connection to be recovered (DET advanced to 0x3).  The critical
901  * component of reloading the driver is that the port state machines are
902  * reset by bouncing "port enable" in the AHCI PCS configuration
903  * register.  So, reproduce that effect by bouncing a port whenever we
904  * see DET==1 after a reset.
905  */
906 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
907 			      unsigned long deadline)
908 {
909 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
910 	struct ata_port *ap = link->ap;
911 	struct ahci_port_priv *pp = ap->private_data;
912 	struct ahci_host_priv *hpriv = ap->host->private_data;
913 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
914 	unsigned long tmo = deadline - jiffies;
915 	struct ata_taskfile tf;
916 	bool online;
917 	int rc, i;
918 
919 	hpriv->stop_engine(ap);
920 
921 	for (i = 0; i < 2; i++) {
922 		u16 val;
923 		u32 sstatus;
924 		int port = ap->port_no;
925 		struct ata_host *host = ap->host;
926 		struct pci_dev *pdev = to_pci_dev(host->dev);
927 
928 		/* clear D2H reception area to properly wait for D2H FIS */
929 		ata_tf_init(link->device, &tf);
930 		tf.status = ATA_BUSY;
931 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
932 
933 		rc = sata_link_hardreset(link, timing, deadline, &online,
934 				ahci_check_ready);
935 
936 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
937 				(sstatus & 0xf) != 1)
938 			break;
939 
940 		ata_link_info(link,  "avn bounce port%d\n", port);
941 
942 		pci_read_config_word(pdev, 0x92, &val);
943 		val &= ~(1 << port);
944 		pci_write_config_word(pdev, 0x92, val);
945 		ata_msleep(ap, 1000);
946 		val |= 1 << port;
947 		pci_write_config_word(pdev, 0x92, val);
948 		deadline += tmo;
949 	}
950 
951 	hpriv->start_engine(ap);
952 
953 	if (online)
954 		*class = ahci_dev_classify(ap);
955 
956 	return rc;
957 }
958 
959 
960 #ifdef CONFIG_PM
961 static void ahci_pci_disable_interrupts(struct ata_host *host)
962 {
963 	struct ahci_host_priv *hpriv = host->private_data;
964 	void __iomem *mmio = hpriv->mmio;
965 	u32 ctl;
966 
967 	/* AHCI spec rev1.1 section 8.3.3:
968 	 * Software must disable interrupts prior to requesting a
969 	 * transition of the HBA to D3 state.
970 	 */
971 	ctl = readl(mmio + HOST_CTL);
972 	ctl &= ~HOST_IRQ_EN;
973 	writel(ctl, mmio + HOST_CTL);
974 	readl(mmio + HOST_CTL); /* flush */
975 }
976 
977 static int ahci_pci_device_runtime_suspend(struct device *dev)
978 {
979 	struct pci_dev *pdev = to_pci_dev(dev);
980 	struct ata_host *host = pci_get_drvdata(pdev);
981 
982 	ahci_pci_disable_interrupts(host);
983 	return 0;
984 }
985 
986 static int ahci_pci_device_runtime_resume(struct device *dev)
987 {
988 	struct pci_dev *pdev = to_pci_dev(dev);
989 	struct ata_host *host = pci_get_drvdata(pdev);
990 	int rc;
991 
992 	rc = ahci_pci_reset_controller(host);
993 	if (rc)
994 		return rc;
995 	ahci_pci_init_controller(host);
996 	return 0;
997 }
998 
999 #ifdef CONFIG_PM_SLEEP
1000 static int ahci_pci_device_suspend(struct device *dev)
1001 {
1002 	struct pci_dev *pdev = to_pci_dev(dev);
1003 	struct ata_host *host = pci_get_drvdata(pdev);
1004 	struct ahci_host_priv *hpriv = host->private_data;
1005 
1006 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
1007 		dev_err(&pdev->dev,
1008 			"BIOS update required for suspend/resume\n");
1009 		return -EIO;
1010 	}
1011 
1012 	ahci_pci_disable_interrupts(host);
1013 	ata_host_suspend(host, PMSG_SUSPEND);
1014 	return 0;
1015 }
1016 
1017 static int ahci_pci_device_resume(struct device *dev)
1018 {
1019 	struct pci_dev *pdev = to_pci_dev(dev);
1020 	struct ata_host *host = pci_get_drvdata(pdev);
1021 	int rc;
1022 
1023 	/* Apple BIOS helpfully mangles the registers on resume */
1024 	if (is_mcp89_apple(pdev))
1025 		ahci_mcp89_apple_enable(pdev);
1026 
1027 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
1028 		rc = ahci_pci_reset_controller(host);
1029 		if (rc)
1030 			return rc;
1031 
1032 		ahci_pci_init_controller(host);
1033 	}
1034 
1035 	ata_host_resume(host);
1036 
1037 	return 0;
1038 }
1039 #endif
1040 
1041 #endif /* CONFIG_PM */
1042 
1043 static int ahci_configure_dma_masks(struct pci_dev *pdev,
1044 				    struct ahci_host_priv *hpriv)
1045 {
1046 	int dma_bits;
1047 	int rc;
1048 
1049 	if (hpriv->cap & HOST_CAP_64) {
1050 		dma_bits = 64;
1051 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
1052 			dma_bits = 43;
1053 	} else {
1054 		dma_bits = 32;
1055 	}
1056 
1057 	/*
1058 	 * If the device fixup already set the dma_mask to some non-standard
1059 	 * value, don't extend it here. This happens on STA2X11, for example.
1060 	 *
1061 	 * XXX: manipulating the DMA mask from platform code is completely
1062 	 * bogus, platform code should use dev->bus_dma_limit instead..
1063 	 */
1064 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
1065 		return 0;
1066 
1067 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
1068 	if (rc)
1069 		dev_err(&pdev->dev, "DMA enable failed\n");
1070 	return rc;
1071 }
1072 
1073 static void ahci_pci_print_info(struct ata_host *host)
1074 {
1075 	struct pci_dev *pdev = to_pci_dev(host->dev);
1076 	u16 cc;
1077 	const char *scc_s;
1078 
1079 	pci_read_config_word(pdev, 0x0a, &cc);
1080 	if (cc == PCI_CLASS_STORAGE_IDE)
1081 		scc_s = "IDE";
1082 	else if (cc == PCI_CLASS_STORAGE_SATA)
1083 		scc_s = "SATA";
1084 	else if (cc == PCI_CLASS_STORAGE_RAID)
1085 		scc_s = "RAID";
1086 	else
1087 		scc_s = "unknown";
1088 
1089 	ahci_print_info(host, scc_s);
1090 }
1091 
1092 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1093  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1094  * support PMP and the 4726 either directly exports the device
1095  * attached to the first downstream port or acts as a hardware storage
1096  * controller and emulate a single ATA device (can be RAID 0/1 or some
1097  * other configuration).
1098  *
1099  * When there's no device attached to the first downstream port of the
1100  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1101  * configure the 4726.  However, ATA emulation of the device is very
1102  * lame.  It doesn't send signature D2H Reg FIS after the initial
1103  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1104  *
1105  * The following function works around the problem by always using
1106  * hardreset on the port and not depending on receiving signature FIS
1107  * afterward.  If signature FIS isn't received soon, ATA class is
1108  * assumed without follow-up softreset.
1109  */
1110 static void ahci_p5wdh_workaround(struct ata_host *host)
1111 {
1112 	static const struct dmi_system_id sysids[] = {
1113 		{
1114 			.ident = "P5W DH Deluxe",
1115 			.matches = {
1116 				DMI_MATCH(DMI_SYS_VENDOR,
1117 					  "ASUSTEK COMPUTER INC"),
1118 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1119 			},
1120 		},
1121 		{ }
1122 	};
1123 	struct pci_dev *pdev = to_pci_dev(host->dev);
1124 
1125 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1126 	    dmi_check_system(sysids)) {
1127 		struct ata_port *ap = host->ports[1];
1128 
1129 		dev_info(&pdev->dev,
1130 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1131 
1132 		ap->ops = &ahci_p5wdh_ops;
1133 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1134 	}
1135 }
1136 
1137 /*
1138  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1139  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1140  */
1141 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1142 {
1143 	u32 val;
1144 
1145 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1146 
1147 	pci_read_config_dword(pdev, 0xf8, &val);
1148 	val |= 1 << 0x1b;
1149 	/* the following changes the device ID, but appears not to affect function */
1150 	/* val = (val & ~0xf0000000) | 0x80000000; */
1151 	pci_write_config_dword(pdev, 0xf8, val);
1152 
1153 	pci_read_config_dword(pdev, 0x54c, &val);
1154 	val |= 1 << 0xc;
1155 	pci_write_config_dword(pdev, 0x54c, val);
1156 
1157 	pci_read_config_dword(pdev, 0x4a4, &val);
1158 	val &= 0xff;
1159 	val |= 0x01060100;
1160 	pci_write_config_dword(pdev, 0x4a4, val);
1161 
1162 	pci_read_config_dword(pdev, 0x54c, &val);
1163 	val &= ~(1 << 0xc);
1164 	pci_write_config_dword(pdev, 0x54c, val);
1165 
1166 	pci_read_config_dword(pdev, 0xf8, &val);
1167 	val &= ~(1 << 0x1b);
1168 	pci_write_config_dword(pdev, 0xf8, val);
1169 }
1170 
1171 static bool is_mcp89_apple(struct pci_dev *pdev)
1172 {
1173 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1174 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1175 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1176 		pdev->subsystem_device == 0xcb89;
1177 }
1178 
1179 /* only some SB600 ahci controllers can do 64bit DMA */
1180 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1181 {
1182 	static const struct dmi_system_id sysids[] = {
1183 		/*
1184 		 * The oldest version known to be broken is 0901 and
1185 		 * working is 1501 which was released on 2007-10-26.
1186 		 * Enable 64bit DMA on 1501 and anything newer.
1187 		 *
1188 		 * Please read bko#9412 for more info.
1189 		 */
1190 		{
1191 			.ident = "ASUS M2A-VM",
1192 			.matches = {
1193 				DMI_MATCH(DMI_BOARD_VENDOR,
1194 					  "ASUSTeK Computer INC."),
1195 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1196 			},
1197 			.driver_data = "20071026",	/* yyyymmdd */
1198 		},
1199 		/*
1200 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1201 		 * support 64bit DMA.
1202 		 *
1203 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1204 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1205 		 * This spelling mistake was fixed in BIOS version 1.5, so
1206 		 * 1.5 and later have the Manufacturer as
1207 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1208 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1209 		 *
1210 		 * BIOS versions earlier than 1.9 had a Board Product Name
1211 		 * DMI field of "MS-7376". This was changed to be
1212 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1213 		 * match on DMI_BOARD_NAME of "MS-7376".
1214 		 */
1215 		{
1216 			.ident = "MSI K9A2 Platinum",
1217 			.matches = {
1218 				DMI_MATCH(DMI_BOARD_VENDOR,
1219 					  "MICRO-STAR INTER"),
1220 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1221 			},
1222 		},
1223 		/*
1224 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1225 		 * 64bit DMA.
1226 		 *
1227 		 * This board also had the typo mentioned above in the
1228 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1229 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1230 		 */
1231 		{
1232 			.ident = "MSI K9AGM2",
1233 			.matches = {
1234 				DMI_MATCH(DMI_BOARD_VENDOR,
1235 					  "MICRO-STAR INTER"),
1236 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1237 			},
1238 		},
1239 		/*
1240 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1241 		 * (all release versions from 0301 to 1206 were tested)
1242 		 */
1243 		{
1244 			.ident = "ASUS M3A",
1245 			.matches = {
1246 				DMI_MATCH(DMI_BOARD_VENDOR,
1247 					  "ASUSTeK Computer INC."),
1248 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1249 			},
1250 		},
1251 		{ }
1252 	};
1253 	const struct dmi_system_id *match;
1254 	int year, month, date;
1255 	char buf[9];
1256 
1257 	match = dmi_first_match(sysids);
1258 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1259 	    !match)
1260 		return false;
1261 
1262 	if (!match->driver_data)
1263 		goto enable_64bit;
1264 
1265 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1266 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1267 
1268 	if (strcmp(buf, match->driver_data) >= 0)
1269 		goto enable_64bit;
1270 	else {
1271 		dev_warn(&pdev->dev,
1272 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1273 			 match->ident);
1274 		return false;
1275 	}
1276 
1277 enable_64bit:
1278 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1279 	return true;
1280 }
1281 
1282 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1283 {
1284 	static const struct dmi_system_id broken_systems[] = {
1285 		{
1286 			.ident = "HP Compaq nx6310",
1287 			.matches = {
1288 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1289 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1290 			},
1291 			/* PCI slot number of the controller */
1292 			.driver_data = (void *)0x1FUL,
1293 		},
1294 		{
1295 			.ident = "HP Compaq 6720s",
1296 			.matches = {
1297 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1298 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1299 			},
1300 			/* PCI slot number of the controller */
1301 			.driver_data = (void *)0x1FUL,
1302 		},
1303 
1304 		{ }	/* terminate list */
1305 	};
1306 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1307 
1308 	if (dmi) {
1309 		unsigned long slot = (unsigned long)dmi->driver_data;
1310 		/* apply the quirk only to on-board controllers */
1311 		return slot == PCI_SLOT(pdev->devfn);
1312 	}
1313 
1314 	return false;
1315 }
1316 
1317 static bool ahci_broken_suspend(struct pci_dev *pdev)
1318 {
1319 	static const struct dmi_system_id sysids[] = {
1320 		/*
1321 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1322 		 * to the harddisk doesn't become online after
1323 		 * resuming from STR.  Warn and fail suspend.
1324 		 *
1325 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1326 		 *
1327 		 * Use dates instead of versions to match as HP is
1328 		 * apparently recycling both product and version
1329 		 * strings.
1330 		 *
1331 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1332 		 */
1333 		{
1334 			.ident = "dv4",
1335 			.matches = {
1336 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1337 				DMI_MATCH(DMI_PRODUCT_NAME,
1338 					  "HP Pavilion dv4 Notebook PC"),
1339 			},
1340 			.driver_data = "20090105",	/* F.30 */
1341 		},
1342 		{
1343 			.ident = "dv5",
1344 			.matches = {
1345 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1346 				DMI_MATCH(DMI_PRODUCT_NAME,
1347 					  "HP Pavilion dv5 Notebook PC"),
1348 			},
1349 			.driver_data = "20090506",	/* F.16 */
1350 		},
1351 		{
1352 			.ident = "dv6",
1353 			.matches = {
1354 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1355 				DMI_MATCH(DMI_PRODUCT_NAME,
1356 					  "HP Pavilion dv6 Notebook PC"),
1357 			},
1358 			.driver_data = "20090423",	/* F.21 */
1359 		},
1360 		{
1361 			.ident = "HDX18",
1362 			.matches = {
1363 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1364 				DMI_MATCH(DMI_PRODUCT_NAME,
1365 					  "HP HDX18 Notebook PC"),
1366 			},
1367 			.driver_data = "20090430",	/* F.23 */
1368 		},
1369 		/*
1370 		 * Acer eMachines G725 has the same problem.  BIOS
1371 		 * V1.03 is known to be broken.  V3.04 is known to
1372 		 * work.  Between, there are V1.06, V2.06 and V3.03
1373 		 * that we don't have much idea about.  For now,
1374 		 * blacklist anything older than V3.04.
1375 		 *
1376 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1377 		 */
1378 		{
1379 			.ident = "G725",
1380 			.matches = {
1381 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1382 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1383 			},
1384 			.driver_data = "20091216",	/* V3.04 */
1385 		},
1386 		{ }	/* terminate list */
1387 	};
1388 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1389 	int year, month, date;
1390 	char buf[9];
1391 
1392 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1393 		return false;
1394 
1395 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1396 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1397 
1398 	return strcmp(buf, dmi->driver_data) < 0;
1399 }
1400 
1401 static bool ahci_broken_lpm(struct pci_dev *pdev)
1402 {
1403 	static const struct dmi_system_id sysids[] = {
1404 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1405 		{
1406 			.matches = {
1407 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1408 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1409 			},
1410 			.driver_data = "20180406", /* 1.31 */
1411 		},
1412 		{
1413 			.matches = {
1414 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1415 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1416 			},
1417 			.driver_data = "20180420", /* 1.28 */
1418 		},
1419 		{
1420 			.matches = {
1421 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1422 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1423 			},
1424 			.driver_data = "20180315", /* 1.33 */
1425 		},
1426 		{
1427 			.matches = {
1428 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1429 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1430 			},
1431 			/*
1432 			 * Note date based on release notes, 2.35 has been
1433 			 * reported to be good, but I've been unable to get
1434 			 * a hold of the reporter to get the DMI BIOS date.
1435 			 * TODO: fix this.
1436 			 */
1437 			.driver_data = "20180310", /* 2.35 */
1438 		},
1439 		{ }	/* terminate list */
1440 	};
1441 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1442 	int year, month, date;
1443 	char buf[9];
1444 
1445 	if (!dmi)
1446 		return false;
1447 
1448 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1449 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1450 
1451 	return strcmp(buf, dmi->driver_data) < 0;
1452 }
1453 
1454 static bool ahci_broken_online(struct pci_dev *pdev)
1455 {
1456 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1457 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1458 	static const struct dmi_system_id sysids[] = {
1459 		/*
1460 		 * There are several gigabyte boards which use
1461 		 * SIMG5723s configured as hardware RAID.  Certain
1462 		 * 5723 firmware revisions shipped there keep the link
1463 		 * online but fail to answer properly to SRST or
1464 		 * IDENTIFY when no device is attached downstream
1465 		 * causing libata to retry quite a few times leading
1466 		 * to excessive detection delay.
1467 		 *
1468 		 * As these firmwares respond to the second reset try
1469 		 * with invalid device signature, considering unknown
1470 		 * sig as offline works around the problem acceptably.
1471 		 */
1472 		{
1473 			.ident = "EP45-DQ6",
1474 			.matches = {
1475 				DMI_MATCH(DMI_BOARD_VENDOR,
1476 					  "Gigabyte Technology Co., Ltd."),
1477 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1478 			},
1479 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1480 		},
1481 		{
1482 			.ident = "EP45-DS5",
1483 			.matches = {
1484 				DMI_MATCH(DMI_BOARD_VENDOR,
1485 					  "Gigabyte Technology Co., Ltd."),
1486 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1487 			},
1488 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1489 		},
1490 		{ }	/* terminate list */
1491 	};
1492 #undef ENCODE_BUSDEVFN
1493 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1494 	unsigned int val;
1495 
1496 	if (!dmi)
1497 		return false;
1498 
1499 	val = (unsigned long)dmi->driver_data;
1500 
1501 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1502 }
1503 
1504 #ifdef CONFIG_ATA_ACPI
1505 static void ahci_gtf_filter_workaround(struct ata_host *host)
1506 {
1507 	static const struct dmi_system_id sysids[] = {
1508 		/*
1509 		 * Aspire 3810T issues a bunch of SATA enable commands
1510 		 * via _GTF including an invalid one and one which is
1511 		 * rejected by the device.  Among the successful ones
1512 		 * is FPDMA non-zero offset enable which when enabled
1513 		 * only on the drive side leads to NCQ command
1514 		 * failures.  Filter it out.
1515 		 */
1516 		{
1517 			.ident = "Aspire 3810T",
1518 			.matches = {
1519 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1520 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1521 			},
1522 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1523 		},
1524 		{ }
1525 	};
1526 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1527 	unsigned int filter;
1528 	int i;
1529 
1530 	if (!dmi)
1531 		return;
1532 
1533 	filter = (unsigned long)dmi->driver_data;
1534 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1535 		 filter, dmi->ident);
1536 
1537 	for (i = 0; i < host->n_ports; i++) {
1538 		struct ata_port *ap = host->ports[i];
1539 		struct ata_link *link;
1540 		struct ata_device *dev;
1541 
1542 		ata_for_each_link(link, ap, EDGE)
1543 			ata_for_each_dev(dev, link, ALL)
1544 				dev->gtf_filter |= filter;
1545 	}
1546 }
1547 #else
1548 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1549 {}
1550 #endif
1551 
1552 /*
1553  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1554  * as DUMMY, or detected but eventually get a "link down" and never get up
1555  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1556  * port_map may hold a value of 0x00.
1557  *
1558  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1559  * and can significantly reduce the occurrence of the problem.
1560  *
1561  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1562  */
1563 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1564 				    struct pci_dev *pdev)
1565 {
1566 	static const struct dmi_system_id sysids[] = {
1567 		{
1568 			.ident = "Acer Switch Alpha 12",
1569 			.matches = {
1570 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1571 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1572 			},
1573 		},
1574 		{ }
1575 	};
1576 
1577 	if (dmi_check_system(sysids)) {
1578 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1579 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1580 			hpriv->port_map = 0x7;
1581 			hpriv->cap = 0xC734FF02;
1582 		}
1583 	}
1584 }
1585 
1586 #ifdef CONFIG_ARM64
1587 /*
1588  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1589  * Workaround is to make sure all pending IRQs are served before leaving
1590  * handler.
1591  */
1592 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1593 {
1594 	struct ata_host *host = dev_instance;
1595 	struct ahci_host_priv *hpriv;
1596 	unsigned int rc = 0;
1597 	void __iomem *mmio;
1598 	u32 irq_stat, irq_masked;
1599 	unsigned int handled = 1;
1600 
1601 	hpriv = host->private_data;
1602 	mmio = hpriv->mmio;
1603 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1604 	if (!irq_stat)
1605 		return IRQ_NONE;
1606 
1607 	do {
1608 		irq_masked = irq_stat & hpriv->port_map;
1609 		spin_lock(&host->lock);
1610 		rc = ahci_handle_port_intr(host, irq_masked);
1611 		if (!rc)
1612 			handled = 0;
1613 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1614 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1615 		spin_unlock(&host->lock);
1616 	} while (irq_stat);
1617 
1618 	return IRQ_RETVAL(handled);
1619 }
1620 #endif
1621 
1622 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1623 		struct ahci_host_priv *hpriv)
1624 {
1625 	int i;
1626 	u32 cap;
1627 
1628 	/*
1629 	 * Check if this device might have remapped nvme devices.
1630 	 */
1631 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1632 	    pci_resource_len(pdev, bar) < SZ_512K ||
1633 	    bar != AHCI_PCI_BAR_STANDARD ||
1634 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1635 		return;
1636 
1637 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1638 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1639 		if ((cap & (1 << i)) == 0)
1640 			continue;
1641 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1642 				!= PCI_CLASS_STORAGE_EXPRESS)
1643 			continue;
1644 
1645 		/* We've found a remapped device */
1646 		hpriv->remapped_nvme++;
1647 	}
1648 
1649 	if (!hpriv->remapped_nvme)
1650 		return;
1651 
1652 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1653 		 hpriv->remapped_nvme);
1654 	dev_warn(&pdev->dev,
1655 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1656 
1657 	/*
1658 	 * Don't rely on the msi-x capability in the remap case,
1659 	 * share the legacy interrupt across ahci and remapped devices.
1660 	 */
1661 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1662 }
1663 
1664 static int ahci_get_irq_vector(struct ata_host *host, int port)
1665 {
1666 	return pci_irq_vector(to_pci_dev(host->dev), port);
1667 }
1668 
1669 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1670 			struct ahci_host_priv *hpriv)
1671 {
1672 	int nvec;
1673 
1674 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1675 		return -ENODEV;
1676 
1677 	/*
1678 	 * If number of MSIs is less than number of ports then Sharing Last
1679 	 * Message mode could be enforced. In this case assume that advantage
1680 	 * of multipe MSIs is negated and use single MSI mode instead.
1681 	 */
1682 	if (n_ports > 1) {
1683 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1684 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1685 		if (nvec > 0) {
1686 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1687 				hpriv->get_irq_vector = ahci_get_irq_vector;
1688 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1689 				return nvec;
1690 			}
1691 
1692 			/*
1693 			 * Fallback to single MSI mode if the controller
1694 			 * enforced MRSM mode.
1695 			 */
1696 			printk(KERN_INFO
1697 				"ahci: MRSM is on, fallback to single MSI\n");
1698 			pci_free_irq_vectors(pdev);
1699 		}
1700 	}
1701 
1702 	/*
1703 	 * If the host is not capable of supporting per-port vectors, fall
1704 	 * back to single MSI before finally attempting single MSI-X.
1705 	 */
1706 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1707 	if (nvec == 1)
1708 		return nvec;
1709 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1710 }
1711 
1712 static void ahci_mark_external_port(struct ata_port *ap)
1713 {
1714 	struct ahci_host_priv *hpriv = ap->host->private_data;
1715 	void __iomem *port_mmio = ahci_port_base(ap);
1716 	u32 tmp;
1717 
1718 	/* mark external ports (hotplug-capable, eSATA) */
1719 	tmp = readl(port_mmio + PORT_CMD);
1720 	if (((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) ||
1721 	    (tmp & PORT_CMD_HPCP))
1722 		ap->pflags |= ATA_PFLAG_EXTERNAL;
1723 }
1724 
1725 static void ahci_update_initial_lpm_policy(struct ata_port *ap)
1726 {
1727 	struct ahci_host_priv *hpriv = ap->host->private_data;
1728 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1729 
1730 	/*
1731 	 * AHCI contains a known incompatibility between LPM and hot-plug
1732 	 * removal events, see 7.3.1 Hot Plug Removal Detection and Power
1733 	 * Management Interaction in AHCI 1.3.1. Therefore, do not enable
1734 	 * LPM if the port advertises itself as an external port.
1735 	 */
1736 	if (ap->pflags & ATA_PFLAG_EXTERNAL)
1737 		return;
1738 
1739 	/* user modified policy via module param */
1740 	if (mobile_lpm_policy != -1) {
1741 		policy = mobile_lpm_policy;
1742 		goto update_policy;
1743 	}
1744 
1745 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1746 		if (hpriv->cap & HOST_CAP_PART)
1747 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1748 		else if (hpriv->cap & HOST_CAP_SSC)
1749 			policy = ATA_LPM_MIN_POWER;
1750 	}
1751 
1752 update_policy:
1753 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1754 		ap->target_lpm_policy = policy;
1755 }
1756 
1757 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1758 {
1759 	u16 tmp16;
1760 
1761 	if (!(hpriv->flags & AHCI_HFLAG_INTEL_PCS_QUIRK))
1762 		return;
1763 
1764 	/*
1765 	 * port_map is determined from PORTS_IMPL PCI register which is
1766 	 * implemented as write or write-once register.  If the register
1767 	 * isn't programmed, ahci automatically generates it from number
1768 	 * of ports, which is good enough for PCS programming. It is
1769 	 * otherwise expected that platform firmware enables the ports
1770 	 * before the OS boots.
1771 	 */
1772 	pci_read_config_word(pdev, PCS_6, &tmp16);
1773 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1774 		tmp16 |= hpriv->port_map;
1775 		pci_write_config_word(pdev, PCS_6, tmp16);
1776 	}
1777 }
1778 
1779 static ssize_t remapped_nvme_show(struct device *dev,
1780 				  struct device_attribute *attr,
1781 				  char *buf)
1782 {
1783 	struct ata_host *host = dev_get_drvdata(dev);
1784 	struct ahci_host_priv *hpriv = host->private_data;
1785 
1786 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1787 }
1788 
1789 static DEVICE_ATTR_RO(remapped_nvme);
1790 
1791 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1792 {
1793 	unsigned int board_id = ent->driver_data;
1794 	struct ata_port_info pi = ahci_port_info[board_id];
1795 	const struct ata_port_info *ppi[] = { &pi, NULL };
1796 	struct device *dev = &pdev->dev;
1797 	struct ahci_host_priv *hpriv;
1798 	struct ata_host *host;
1799 	int n_ports, i, rc;
1800 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1801 
1802 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1803 
1804 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1805 
1806 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1807 	   can drive them all so if both drivers are selected make sure
1808 	   AHCI stays out of the way */
1809 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1810 		return -ENODEV;
1811 
1812 	/* Apple BIOS on MCP89 prevents us using AHCI */
1813 	if (is_mcp89_apple(pdev))
1814 		ahci_mcp89_apple_enable(pdev);
1815 
1816 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1817 	 * At the moment, we can only use the AHCI mode. Let the users know
1818 	 * that for SAS drives they're out of luck.
1819 	 */
1820 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1821 		dev_info(&pdev->dev,
1822 			 "PDC42819 can only drive SATA devices with this driver\n");
1823 
1824 	/* Some devices use non-standard BARs */
1825 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1826 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1827 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1828 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1829 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1830 		if (pdev->device == 0xa01c)
1831 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1832 		if (pdev->device == 0xa084)
1833 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1834 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1835 		if (pdev->device == 0x7a08)
1836 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1837 	}
1838 
1839 	/* acquire resources */
1840 	rc = pcim_enable_device(pdev);
1841 	if (rc)
1842 		return rc;
1843 
1844 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1845 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1846 		u8 map;
1847 
1848 		/* ICH6s share the same PCI ID for both piix and ahci
1849 		 * modes.  Enabling ahci mode while MAP indicates
1850 		 * combined mode is a bad idea.  Yield to ata_piix.
1851 		 */
1852 		pci_read_config_byte(pdev, ICH_MAP, &map);
1853 		if (map & 0x3) {
1854 			dev_info(&pdev->dev,
1855 				 "controller is in combined mode, can't enable AHCI mode\n");
1856 			return -ENODEV;
1857 		}
1858 	}
1859 
1860 	/* AHCI controllers often implement SFF compatible interface.
1861 	 * Grab all PCI BARs just in case.
1862 	 */
1863 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1864 	if (rc == -EBUSY)
1865 		pcim_pin_device(pdev);
1866 	if (rc)
1867 		return rc;
1868 
1869 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1870 	if (!hpriv)
1871 		return -ENOMEM;
1872 	hpriv->flags |= (unsigned long)pi.private_data;
1873 
1874 	/* MCP65 revision A1 and A2 can't do MSI */
1875 	if (board_id == board_ahci_mcp65 &&
1876 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1877 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1878 
1879 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1880 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1881 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1882 
1883 	/* only some SB600s can do 64bit DMA */
1884 	if (ahci_sb600_enable_64bit(pdev))
1885 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1886 
1887 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1888 
1889 	/* detect remapped nvme devices */
1890 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1891 
1892 	sysfs_add_file_to_group(&pdev->dev.kobj,
1893 				&dev_attr_remapped_nvme.attr,
1894 				NULL);
1895 
1896 #ifdef CONFIG_ARM64
1897 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1898 	    pdev->device == 0xa235 &&
1899 	    pdev->revision < 0x30)
1900 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1901 
1902 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1903 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1904 #endif
1905 
1906 	/* save initial config */
1907 	ahci_pci_save_initial_config(pdev, hpriv);
1908 
1909 	/* prepare host */
1910 	if (hpriv->cap & HOST_CAP_NCQ) {
1911 		pi.flags |= ATA_FLAG_NCQ;
1912 		/*
1913 		 * Auto-activate optimization is supposed to be
1914 		 * supported on all AHCI controllers indicating NCQ
1915 		 * capability, but it seems to be broken on some
1916 		 * chipsets including NVIDIAs.
1917 		 */
1918 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1919 			pi.flags |= ATA_FLAG_FPDMA_AA;
1920 
1921 		/*
1922 		 * All AHCI controllers should be forward-compatible
1923 		 * with the new auxiliary field. This code should be
1924 		 * conditionalized if any buggy AHCI controllers are
1925 		 * encountered.
1926 		 */
1927 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1928 	}
1929 
1930 	if (hpriv->cap & HOST_CAP_PMP)
1931 		pi.flags |= ATA_FLAG_PMP;
1932 
1933 	ahci_set_em_messages(hpriv, &pi);
1934 
1935 	if (ahci_broken_system_poweroff(pdev)) {
1936 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1937 		dev_info(&pdev->dev,
1938 			"quirky BIOS, skipping spindown on poweroff\n");
1939 	}
1940 
1941 	if (ahci_broken_lpm(pdev)) {
1942 		pi.flags |= ATA_FLAG_NO_LPM;
1943 		dev_warn(&pdev->dev,
1944 			 "BIOS update required for Link Power Management support\n");
1945 	}
1946 
1947 	if (ahci_broken_suspend(pdev)) {
1948 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1949 		dev_warn(&pdev->dev,
1950 			 "BIOS update required for suspend/resume\n");
1951 	}
1952 
1953 	if (ahci_broken_online(pdev)) {
1954 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1955 		dev_info(&pdev->dev,
1956 			 "online status unreliable, applying workaround\n");
1957 	}
1958 
1959 
1960 	/* Acer SA5-271 workaround modifies private_data */
1961 	acer_sa5_271_workaround(hpriv, pdev);
1962 
1963 	/* CAP.NP sometimes indicate the index of the last enabled
1964 	 * port, at other times, that of the last possible port, so
1965 	 * determining the maximum port number requires looking at
1966 	 * both CAP.NP and port_map.
1967 	 */
1968 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1969 
1970 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1971 	if (!host)
1972 		return -ENOMEM;
1973 	host->private_data = hpriv;
1974 
1975 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1976 		/* legacy intx interrupts */
1977 		pci_intx(pdev, 1);
1978 	}
1979 	hpriv->irq = pci_irq_vector(pdev, 0);
1980 
1981 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1982 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1983 	else
1984 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1985 
1986 	if (!(hpriv->cap & HOST_CAP_PART))
1987 		host->flags |= ATA_HOST_NO_PART;
1988 
1989 	if (!(hpriv->cap & HOST_CAP_SSC))
1990 		host->flags |= ATA_HOST_NO_SSC;
1991 
1992 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
1993 		host->flags |= ATA_HOST_NO_DEVSLP;
1994 
1995 	if (pi.flags & ATA_FLAG_EM)
1996 		ahci_reset_em(host);
1997 
1998 	for (i = 0; i < host->n_ports; i++) {
1999 		struct ata_port *ap = host->ports[i];
2000 
2001 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
2002 		ata_port_pbar_desc(ap, ahci_pci_bar,
2003 				   0x100 + ap->port_no * 0x80, "port");
2004 
2005 		/* set enclosure management message type */
2006 		if (ap->flags & ATA_FLAG_EM)
2007 			ap->em_message_type = hpriv->em_msg_type;
2008 
2009 		ahci_mark_external_port(ap);
2010 
2011 		ahci_update_initial_lpm_policy(ap);
2012 
2013 		/* disabled/not-implemented port */
2014 		if (!(hpriv->port_map & (1 << i)))
2015 			ap->ops = &ata_dummy_port_ops;
2016 	}
2017 
2018 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
2019 	ahci_p5wdh_workaround(host);
2020 
2021 	/* apply gtf filter quirk */
2022 	ahci_gtf_filter_workaround(host);
2023 
2024 	/* initialize adapter */
2025 	rc = ahci_configure_dma_masks(pdev, hpriv);
2026 	if (rc)
2027 		return rc;
2028 
2029 	rc = ahci_pci_reset_controller(host);
2030 	if (rc)
2031 		return rc;
2032 
2033 	ahci_pci_init_controller(host);
2034 	ahci_pci_print_info(host);
2035 
2036 	pci_set_master(pdev);
2037 
2038 	rc = ahci_host_activate(host, &ahci_sht);
2039 	if (rc)
2040 		return rc;
2041 
2042 	pm_runtime_put_noidle(&pdev->dev);
2043 	return 0;
2044 }
2045 
2046 static void ahci_shutdown_one(struct pci_dev *pdev)
2047 {
2048 	ata_pci_shutdown_one(pdev);
2049 }
2050 
2051 static void ahci_remove_one(struct pci_dev *pdev)
2052 {
2053 	sysfs_remove_file_from_group(&pdev->dev.kobj,
2054 				     &dev_attr_remapped_nvme.attr,
2055 				     NULL);
2056 	pm_runtime_get_noresume(&pdev->dev);
2057 	ata_pci_remove_one(pdev);
2058 }
2059 
2060 module_pci_driver(ahci_pci_driver);
2061 
2062 MODULE_AUTHOR("Jeff Garzik");
2063 MODULE_DESCRIPTION("AHCI SATA low-level driver");
2064 MODULE_LICENSE("GPL");
2065 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
2066 MODULE_VERSION(DRV_VERSION);
2067