xref: /linux/drivers/ata/ahci.c (revision fdd51b3e73e906aac056f2c337710185607d43d1)
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 void ahci_pci_save_initial_config(struct pci_dev *pdev,
670 					 struct ahci_host_priv *hpriv)
671 {
672 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
673 		dev_info(&pdev->dev, "JMB361 has only one port\n");
674 		hpriv->saved_port_map = 1;
675 	}
676 
677 	/*
678 	 * Temporary Marvell 6145 hack: PATA port presence
679 	 * is asserted through the standard AHCI port
680 	 * presence register, as bit 4 (counting from 0)
681 	 */
682 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
683 		if (pdev->device == 0x6121)
684 			hpriv->mask_port_map = 0x3;
685 		else
686 			hpriv->mask_port_map = 0xf;
687 		dev_info(&pdev->dev,
688 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
689 	}
690 
691 	ahci_save_initial_config(&pdev->dev, hpriv);
692 }
693 
694 static int ahci_pci_reset_controller(struct ata_host *host)
695 {
696 	struct pci_dev *pdev = to_pci_dev(host->dev);
697 	struct ahci_host_priv *hpriv = host->private_data;
698 	int rc;
699 
700 	rc = ahci_reset_controller(host);
701 	if (rc)
702 		return rc;
703 
704 	/*
705 	 * If platform firmware failed to enable ports, try to enable
706 	 * them here.
707 	 */
708 	ahci_intel_pcs_quirk(pdev, hpriv);
709 
710 	return 0;
711 }
712 
713 static void ahci_pci_init_controller(struct ata_host *host)
714 {
715 	struct ahci_host_priv *hpriv = host->private_data;
716 	struct pci_dev *pdev = to_pci_dev(host->dev);
717 	void __iomem *port_mmio;
718 	u32 tmp;
719 	int mv;
720 
721 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
722 		if (pdev->device == 0x6121)
723 			mv = 2;
724 		else
725 			mv = 4;
726 		port_mmio = __ahci_port_base(hpriv, mv);
727 
728 		writel(0, port_mmio + PORT_IRQ_MASK);
729 
730 		/* clear port IRQ */
731 		tmp = readl(port_mmio + PORT_IRQ_STAT);
732 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
733 		if (tmp)
734 			writel(tmp, port_mmio + PORT_IRQ_STAT);
735 	}
736 
737 	ahci_init_controller(host);
738 }
739 
740 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
741 				 unsigned long deadline)
742 {
743 	struct ata_port *ap = link->ap;
744 	struct ahci_host_priv *hpriv = ap->host->private_data;
745 	bool online;
746 	int rc;
747 
748 	hpriv->stop_engine(ap);
749 
750 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
751 				 deadline, &online, NULL);
752 
753 	hpriv->start_engine(ap);
754 
755 	/* vt8251 doesn't clear BSY on signature FIS reception,
756 	 * request follow-up softreset.
757 	 */
758 	return online ? -EAGAIN : rc;
759 }
760 
761 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
762 				unsigned long deadline)
763 {
764 	struct ata_port *ap = link->ap;
765 	struct ahci_port_priv *pp = ap->private_data;
766 	struct ahci_host_priv *hpriv = ap->host->private_data;
767 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
768 	struct ata_taskfile tf;
769 	bool online;
770 	int rc;
771 
772 	hpriv->stop_engine(ap);
773 
774 	/* clear D2H reception area to properly wait for D2H FIS */
775 	ata_tf_init(link->device, &tf);
776 	tf.status = ATA_BUSY;
777 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
778 
779 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
780 				 deadline, &online, NULL);
781 
782 	hpriv->start_engine(ap);
783 
784 	/* The pseudo configuration device on SIMG4726 attached to
785 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
786 	 * hardreset if no device is attached to the first downstream
787 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
788 	 * work around this, wait for !BSY only briefly.  If BSY isn't
789 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
790 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
791 	 *
792 	 * Wait for two seconds.  Devices attached to downstream port
793 	 * which can't process the following IDENTIFY after this will
794 	 * have to be reset again.  For most cases, this should
795 	 * suffice while making probing snappish enough.
796 	 */
797 	if (online) {
798 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
799 					  ahci_check_ready);
800 		if (rc)
801 			ahci_kick_engine(ap);
802 	}
803 	return rc;
804 }
805 
806 /*
807  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
808  *
809  * It has been observed with some SSDs that the timing of events in the
810  * link synchronization phase can leave the port in a state that can not
811  * be recovered by a SATA-hard-reset alone.  The failing signature is
812  * SStatus.DET stuck at 1 ("Device presence detected but Phy
813  * communication not established").  It was found that unloading and
814  * reloading the driver when this problem occurs allows the drive
815  * connection to be recovered (DET advanced to 0x3).  The critical
816  * component of reloading the driver is that the port state machines are
817  * reset by bouncing "port enable" in the AHCI PCS configuration
818  * register.  So, reproduce that effect by bouncing a port whenever we
819  * see DET==1 after a reset.
820  */
821 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
822 			      unsigned long deadline)
823 {
824 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
825 	struct ata_port *ap = link->ap;
826 	struct ahci_port_priv *pp = ap->private_data;
827 	struct ahci_host_priv *hpriv = ap->host->private_data;
828 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
829 	unsigned long tmo = deadline - jiffies;
830 	struct ata_taskfile tf;
831 	bool online;
832 	int rc, i;
833 
834 	hpriv->stop_engine(ap);
835 
836 	for (i = 0; i < 2; i++) {
837 		u16 val;
838 		u32 sstatus;
839 		int port = ap->port_no;
840 		struct ata_host *host = ap->host;
841 		struct pci_dev *pdev = to_pci_dev(host->dev);
842 
843 		/* clear D2H reception area to properly wait for D2H FIS */
844 		ata_tf_init(link->device, &tf);
845 		tf.status = ATA_BUSY;
846 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
847 
848 		rc = sata_link_hardreset(link, timing, deadline, &online,
849 				ahci_check_ready);
850 
851 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
852 				(sstatus & 0xf) != 1)
853 			break;
854 
855 		ata_link_info(link,  "avn bounce port%d\n", port);
856 
857 		pci_read_config_word(pdev, 0x92, &val);
858 		val &= ~(1 << port);
859 		pci_write_config_word(pdev, 0x92, val);
860 		ata_msleep(ap, 1000);
861 		val |= 1 << port;
862 		pci_write_config_word(pdev, 0x92, val);
863 		deadline += tmo;
864 	}
865 
866 	hpriv->start_engine(ap);
867 
868 	if (online)
869 		*class = ahci_dev_classify(ap);
870 
871 	return rc;
872 }
873 
874 
875 #ifdef CONFIG_PM
876 static void ahci_pci_disable_interrupts(struct ata_host *host)
877 {
878 	struct ahci_host_priv *hpriv = host->private_data;
879 	void __iomem *mmio = hpriv->mmio;
880 	u32 ctl;
881 
882 	/* AHCI spec rev1.1 section 8.3.3:
883 	 * Software must disable interrupts prior to requesting a
884 	 * transition of the HBA to D3 state.
885 	 */
886 	ctl = readl(mmio + HOST_CTL);
887 	ctl &= ~HOST_IRQ_EN;
888 	writel(ctl, mmio + HOST_CTL);
889 	readl(mmio + HOST_CTL); /* flush */
890 }
891 
892 static int ahci_pci_device_runtime_suspend(struct device *dev)
893 {
894 	struct pci_dev *pdev = to_pci_dev(dev);
895 	struct ata_host *host = pci_get_drvdata(pdev);
896 
897 	ahci_pci_disable_interrupts(host);
898 	return 0;
899 }
900 
901 static int ahci_pci_device_runtime_resume(struct device *dev)
902 {
903 	struct pci_dev *pdev = to_pci_dev(dev);
904 	struct ata_host *host = pci_get_drvdata(pdev);
905 	int rc;
906 
907 	rc = ahci_pci_reset_controller(host);
908 	if (rc)
909 		return rc;
910 	ahci_pci_init_controller(host);
911 	return 0;
912 }
913 
914 #ifdef CONFIG_PM_SLEEP
915 static int ahci_pci_device_suspend(struct device *dev)
916 {
917 	struct pci_dev *pdev = to_pci_dev(dev);
918 	struct ata_host *host = pci_get_drvdata(pdev);
919 	struct ahci_host_priv *hpriv = host->private_data;
920 
921 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
922 		dev_err(&pdev->dev,
923 			"BIOS update required for suspend/resume\n");
924 		return -EIO;
925 	}
926 
927 	ahci_pci_disable_interrupts(host);
928 	ata_host_suspend(host, PMSG_SUSPEND);
929 	return 0;
930 }
931 
932 static int ahci_pci_device_resume(struct device *dev)
933 {
934 	struct pci_dev *pdev = to_pci_dev(dev);
935 	struct ata_host *host = pci_get_drvdata(pdev);
936 	int rc;
937 
938 	/* Apple BIOS helpfully mangles the registers on resume */
939 	if (is_mcp89_apple(pdev))
940 		ahci_mcp89_apple_enable(pdev);
941 
942 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
943 		rc = ahci_pci_reset_controller(host);
944 		if (rc)
945 			return rc;
946 
947 		ahci_pci_init_controller(host);
948 	}
949 
950 	ata_host_resume(host);
951 
952 	return 0;
953 }
954 #endif
955 
956 #endif /* CONFIG_PM */
957 
958 static int ahci_configure_dma_masks(struct pci_dev *pdev,
959 				    struct ahci_host_priv *hpriv)
960 {
961 	int dma_bits;
962 	int rc;
963 
964 	if (hpriv->cap & HOST_CAP_64) {
965 		dma_bits = 64;
966 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
967 			dma_bits = 43;
968 	} else {
969 		dma_bits = 32;
970 	}
971 
972 	/*
973 	 * If the device fixup already set the dma_mask to some non-standard
974 	 * value, don't extend it here. This happens on STA2X11, for example.
975 	 *
976 	 * XXX: manipulating the DMA mask from platform code is completely
977 	 * bogus, platform code should use dev->bus_dma_limit instead..
978 	 */
979 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
980 		return 0;
981 
982 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
983 	if (rc)
984 		dev_err(&pdev->dev, "DMA enable failed\n");
985 	return rc;
986 }
987 
988 static void ahci_pci_print_info(struct ata_host *host)
989 {
990 	struct pci_dev *pdev = to_pci_dev(host->dev);
991 	u16 cc;
992 	const char *scc_s;
993 
994 	pci_read_config_word(pdev, 0x0a, &cc);
995 	if (cc == PCI_CLASS_STORAGE_IDE)
996 		scc_s = "IDE";
997 	else if (cc == PCI_CLASS_STORAGE_SATA)
998 		scc_s = "SATA";
999 	else if (cc == PCI_CLASS_STORAGE_RAID)
1000 		scc_s = "RAID";
1001 	else
1002 		scc_s = "unknown";
1003 
1004 	ahci_print_info(host, scc_s);
1005 }
1006 
1007 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1008  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1009  * support PMP and the 4726 either directly exports the device
1010  * attached to the first downstream port or acts as a hardware storage
1011  * controller and emulate a single ATA device (can be RAID 0/1 or some
1012  * other configuration).
1013  *
1014  * When there's no device attached to the first downstream port of the
1015  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1016  * configure the 4726.  However, ATA emulation of the device is very
1017  * lame.  It doesn't send signature D2H Reg FIS after the initial
1018  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1019  *
1020  * The following function works around the problem by always using
1021  * hardreset on the port and not depending on receiving signature FIS
1022  * afterward.  If signature FIS isn't received soon, ATA class is
1023  * assumed without follow-up softreset.
1024  */
1025 static void ahci_p5wdh_workaround(struct ata_host *host)
1026 {
1027 	static const struct dmi_system_id sysids[] = {
1028 		{
1029 			.ident = "P5W DH Deluxe",
1030 			.matches = {
1031 				DMI_MATCH(DMI_SYS_VENDOR,
1032 					  "ASUSTEK COMPUTER INC"),
1033 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1034 			},
1035 		},
1036 		{ }
1037 	};
1038 	struct pci_dev *pdev = to_pci_dev(host->dev);
1039 
1040 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1041 	    dmi_check_system(sysids)) {
1042 		struct ata_port *ap = host->ports[1];
1043 
1044 		dev_info(&pdev->dev,
1045 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1046 
1047 		ap->ops = &ahci_p5wdh_ops;
1048 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1049 	}
1050 }
1051 
1052 /*
1053  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1054  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1055  */
1056 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1057 {
1058 	u32 val;
1059 
1060 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1061 
1062 	pci_read_config_dword(pdev, 0xf8, &val);
1063 	val |= 1 << 0x1b;
1064 	/* the following changes the device ID, but appears not to affect function */
1065 	/* val = (val & ~0xf0000000) | 0x80000000; */
1066 	pci_write_config_dword(pdev, 0xf8, val);
1067 
1068 	pci_read_config_dword(pdev, 0x54c, &val);
1069 	val |= 1 << 0xc;
1070 	pci_write_config_dword(pdev, 0x54c, val);
1071 
1072 	pci_read_config_dword(pdev, 0x4a4, &val);
1073 	val &= 0xff;
1074 	val |= 0x01060100;
1075 	pci_write_config_dword(pdev, 0x4a4, val);
1076 
1077 	pci_read_config_dword(pdev, 0x54c, &val);
1078 	val &= ~(1 << 0xc);
1079 	pci_write_config_dword(pdev, 0x54c, val);
1080 
1081 	pci_read_config_dword(pdev, 0xf8, &val);
1082 	val &= ~(1 << 0x1b);
1083 	pci_write_config_dword(pdev, 0xf8, val);
1084 }
1085 
1086 static bool is_mcp89_apple(struct pci_dev *pdev)
1087 {
1088 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1089 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1090 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1091 		pdev->subsystem_device == 0xcb89;
1092 }
1093 
1094 /* only some SB600 ahci controllers can do 64bit DMA */
1095 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1096 {
1097 	static const struct dmi_system_id sysids[] = {
1098 		/*
1099 		 * The oldest version known to be broken is 0901 and
1100 		 * working is 1501 which was released on 2007-10-26.
1101 		 * Enable 64bit DMA on 1501 and anything newer.
1102 		 *
1103 		 * Please read bko#9412 for more info.
1104 		 */
1105 		{
1106 			.ident = "ASUS M2A-VM",
1107 			.matches = {
1108 				DMI_MATCH(DMI_BOARD_VENDOR,
1109 					  "ASUSTeK Computer INC."),
1110 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1111 			},
1112 			.driver_data = "20071026",	/* yyyymmdd */
1113 		},
1114 		/*
1115 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1116 		 * support 64bit DMA.
1117 		 *
1118 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1119 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1120 		 * This spelling mistake was fixed in BIOS version 1.5, so
1121 		 * 1.5 and later have the Manufacturer as
1122 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1123 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1124 		 *
1125 		 * BIOS versions earlier than 1.9 had a Board Product Name
1126 		 * DMI field of "MS-7376". This was changed to be
1127 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1128 		 * match on DMI_BOARD_NAME of "MS-7376".
1129 		 */
1130 		{
1131 			.ident = "MSI K9A2 Platinum",
1132 			.matches = {
1133 				DMI_MATCH(DMI_BOARD_VENDOR,
1134 					  "MICRO-STAR INTER"),
1135 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1136 			},
1137 		},
1138 		/*
1139 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1140 		 * 64bit DMA.
1141 		 *
1142 		 * This board also had the typo mentioned above in the
1143 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1144 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1145 		 */
1146 		{
1147 			.ident = "MSI K9AGM2",
1148 			.matches = {
1149 				DMI_MATCH(DMI_BOARD_VENDOR,
1150 					  "MICRO-STAR INTER"),
1151 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1152 			},
1153 		},
1154 		/*
1155 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1156 		 * (all release versions from 0301 to 1206 were tested)
1157 		 */
1158 		{
1159 			.ident = "ASUS M3A",
1160 			.matches = {
1161 				DMI_MATCH(DMI_BOARD_VENDOR,
1162 					  "ASUSTeK Computer INC."),
1163 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1164 			},
1165 		},
1166 		{ }
1167 	};
1168 	const struct dmi_system_id *match;
1169 	int year, month, date;
1170 	char buf[9];
1171 
1172 	match = dmi_first_match(sysids);
1173 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1174 	    !match)
1175 		return false;
1176 
1177 	if (!match->driver_data)
1178 		goto enable_64bit;
1179 
1180 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1181 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1182 
1183 	if (strcmp(buf, match->driver_data) >= 0)
1184 		goto enable_64bit;
1185 	else {
1186 		dev_warn(&pdev->dev,
1187 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1188 			 match->ident);
1189 		return false;
1190 	}
1191 
1192 enable_64bit:
1193 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1194 	return true;
1195 }
1196 
1197 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1198 {
1199 	static const struct dmi_system_id broken_systems[] = {
1200 		{
1201 			.ident = "HP Compaq nx6310",
1202 			.matches = {
1203 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1204 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1205 			},
1206 			/* PCI slot number of the controller */
1207 			.driver_data = (void *)0x1FUL,
1208 		},
1209 		{
1210 			.ident = "HP Compaq 6720s",
1211 			.matches = {
1212 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1213 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1214 			},
1215 			/* PCI slot number of the controller */
1216 			.driver_data = (void *)0x1FUL,
1217 		},
1218 
1219 		{ }	/* terminate list */
1220 	};
1221 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1222 
1223 	if (dmi) {
1224 		unsigned long slot = (unsigned long)dmi->driver_data;
1225 		/* apply the quirk only to on-board controllers */
1226 		return slot == PCI_SLOT(pdev->devfn);
1227 	}
1228 
1229 	return false;
1230 }
1231 
1232 static bool ahci_broken_suspend(struct pci_dev *pdev)
1233 {
1234 	static const struct dmi_system_id sysids[] = {
1235 		/*
1236 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1237 		 * to the harddisk doesn't become online after
1238 		 * resuming from STR.  Warn and fail suspend.
1239 		 *
1240 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1241 		 *
1242 		 * Use dates instead of versions to match as HP is
1243 		 * apparently recycling both product and version
1244 		 * strings.
1245 		 *
1246 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1247 		 */
1248 		{
1249 			.ident = "dv4",
1250 			.matches = {
1251 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1252 				DMI_MATCH(DMI_PRODUCT_NAME,
1253 					  "HP Pavilion dv4 Notebook PC"),
1254 			},
1255 			.driver_data = "20090105",	/* F.30 */
1256 		},
1257 		{
1258 			.ident = "dv5",
1259 			.matches = {
1260 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1261 				DMI_MATCH(DMI_PRODUCT_NAME,
1262 					  "HP Pavilion dv5 Notebook PC"),
1263 			},
1264 			.driver_data = "20090506",	/* F.16 */
1265 		},
1266 		{
1267 			.ident = "dv6",
1268 			.matches = {
1269 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1270 				DMI_MATCH(DMI_PRODUCT_NAME,
1271 					  "HP Pavilion dv6 Notebook PC"),
1272 			},
1273 			.driver_data = "20090423",	/* F.21 */
1274 		},
1275 		{
1276 			.ident = "HDX18",
1277 			.matches = {
1278 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1279 				DMI_MATCH(DMI_PRODUCT_NAME,
1280 					  "HP HDX18 Notebook PC"),
1281 			},
1282 			.driver_data = "20090430",	/* F.23 */
1283 		},
1284 		/*
1285 		 * Acer eMachines G725 has the same problem.  BIOS
1286 		 * V1.03 is known to be broken.  V3.04 is known to
1287 		 * work.  Between, there are V1.06, V2.06 and V3.03
1288 		 * that we don't have much idea about.  For now,
1289 		 * blacklist anything older than V3.04.
1290 		 *
1291 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1292 		 */
1293 		{
1294 			.ident = "G725",
1295 			.matches = {
1296 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1297 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1298 			},
1299 			.driver_data = "20091216",	/* V3.04 */
1300 		},
1301 		{ }	/* terminate list */
1302 	};
1303 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1304 	int year, month, date;
1305 	char buf[9];
1306 
1307 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1308 		return false;
1309 
1310 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1311 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1312 
1313 	return strcmp(buf, dmi->driver_data) < 0;
1314 }
1315 
1316 static bool ahci_broken_lpm(struct pci_dev *pdev)
1317 {
1318 	static const struct dmi_system_id sysids[] = {
1319 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1320 		{
1321 			.matches = {
1322 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1323 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1324 			},
1325 			.driver_data = "20180406", /* 1.31 */
1326 		},
1327 		{
1328 			.matches = {
1329 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1330 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1331 			},
1332 			.driver_data = "20180420", /* 1.28 */
1333 		},
1334 		{
1335 			.matches = {
1336 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1337 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1338 			},
1339 			.driver_data = "20180315", /* 1.33 */
1340 		},
1341 		{
1342 			.matches = {
1343 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1344 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1345 			},
1346 			/*
1347 			 * Note date based on release notes, 2.35 has been
1348 			 * reported to be good, but I've been unable to get
1349 			 * a hold of the reporter to get the DMI BIOS date.
1350 			 * TODO: fix this.
1351 			 */
1352 			.driver_data = "20180310", /* 2.35 */
1353 		},
1354 		{ }	/* terminate list */
1355 	};
1356 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1357 	int year, month, date;
1358 	char buf[9];
1359 
1360 	if (!dmi)
1361 		return false;
1362 
1363 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1364 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1365 
1366 	return strcmp(buf, dmi->driver_data) < 0;
1367 }
1368 
1369 static bool ahci_broken_online(struct pci_dev *pdev)
1370 {
1371 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1372 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1373 	static const struct dmi_system_id sysids[] = {
1374 		/*
1375 		 * There are several gigabyte boards which use
1376 		 * SIMG5723s configured as hardware RAID.  Certain
1377 		 * 5723 firmware revisions shipped there keep the link
1378 		 * online but fail to answer properly to SRST or
1379 		 * IDENTIFY when no device is attached downstream
1380 		 * causing libata to retry quite a few times leading
1381 		 * to excessive detection delay.
1382 		 *
1383 		 * As these firmwares respond to the second reset try
1384 		 * with invalid device signature, considering unknown
1385 		 * sig as offline works around the problem acceptably.
1386 		 */
1387 		{
1388 			.ident = "EP45-DQ6",
1389 			.matches = {
1390 				DMI_MATCH(DMI_BOARD_VENDOR,
1391 					  "Gigabyte Technology Co., Ltd."),
1392 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1393 			},
1394 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1395 		},
1396 		{
1397 			.ident = "EP45-DS5",
1398 			.matches = {
1399 				DMI_MATCH(DMI_BOARD_VENDOR,
1400 					  "Gigabyte Technology Co., Ltd."),
1401 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1402 			},
1403 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1404 		},
1405 		{ }	/* terminate list */
1406 	};
1407 #undef ENCODE_BUSDEVFN
1408 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1409 	unsigned int val;
1410 
1411 	if (!dmi)
1412 		return false;
1413 
1414 	val = (unsigned long)dmi->driver_data;
1415 
1416 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1417 }
1418 
1419 #ifdef CONFIG_ATA_ACPI
1420 static void ahci_gtf_filter_workaround(struct ata_host *host)
1421 {
1422 	static const struct dmi_system_id sysids[] = {
1423 		/*
1424 		 * Aspire 3810T issues a bunch of SATA enable commands
1425 		 * via _GTF including an invalid one and one which is
1426 		 * rejected by the device.  Among the successful ones
1427 		 * is FPDMA non-zero offset enable which when enabled
1428 		 * only on the drive side leads to NCQ command
1429 		 * failures.  Filter it out.
1430 		 */
1431 		{
1432 			.ident = "Aspire 3810T",
1433 			.matches = {
1434 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1435 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1436 			},
1437 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1438 		},
1439 		{ }
1440 	};
1441 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1442 	unsigned int filter;
1443 	int i;
1444 
1445 	if (!dmi)
1446 		return;
1447 
1448 	filter = (unsigned long)dmi->driver_data;
1449 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1450 		 filter, dmi->ident);
1451 
1452 	for (i = 0; i < host->n_ports; i++) {
1453 		struct ata_port *ap = host->ports[i];
1454 		struct ata_link *link;
1455 		struct ata_device *dev;
1456 
1457 		ata_for_each_link(link, ap, EDGE)
1458 			ata_for_each_dev(dev, link, ALL)
1459 				dev->gtf_filter |= filter;
1460 	}
1461 }
1462 #else
1463 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1464 {}
1465 #endif
1466 
1467 /*
1468  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1469  * as DUMMY, or detected but eventually get a "link down" and never get up
1470  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1471  * port_map may hold a value of 0x00.
1472  *
1473  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1474  * and can significantly reduce the occurrence of the problem.
1475  *
1476  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1477  */
1478 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1479 				    struct pci_dev *pdev)
1480 {
1481 	static const struct dmi_system_id sysids[] = {
1482 		{
1483 			.ident = "Acer Switch Alpha 12",
1484 			.matches = {
1485 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1486 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1487 			},
1488 		},
1489 		{ }
1490 	};
1491 
1492 	if (dmi_check_system(sysids)) {
1493 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1494 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1495 			hpriv->port_map = 0x7;
1496 			hpriv->cap = 0xC734FF02;
1497 		}
1498 	}
1499 }
1500 
1501 #ifdef CONFIG_ARM64
1502 /*
1503  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1504  * Workaround is to make sure all pending IRQs are served before leaving
1505  * handler.
1506  */
1507 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1508 {
1509 	struct ata_host *host = dev_instance;
1510 	struct ahci_host_priv *hpriv;
1511 	unsigned int rc = 0;
1512 	void __iomem *mmio;
1513 	u32 irq_stat, irq_masked;
1514 	unsigned int handled = 1;
1515 
1516 	hpriv = host->private_data;
1517 	mmio = hpriv->mmio;
1518 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1519 	if (!irq_stat)
1520 		return IRQ_NONE;
1521 
1522 	do {
1523 		irq_masked = irq_stat & hpriv->port_map;
1524 		spin_lock(&host->lock);
1525 		rc = ahci_handle_port_intr(host, irq_masked);
1526 		if (!rc)
1527 			handled = 0;
1528 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1529 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1530 		spin_unlock(&host->lock);
1531 	} while (irq_stat);
1532 
1533 	return IRQ_RETVAL(handled);
1534 }
1535 #endif
1536 
1537 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1538 		struct ahci_host_priv *hpriv)
1539 {
1540 	int i;
1541 	u32 cap;
1542 
1543 	/*
1544 	 * Check if this device might have remapped nvme devices.
1545 	 */
1546 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1547 	    pci_resource_len(pdev, bar) < SZ_512K ||
1548 	    bar != AHCI_PCI_BAR_STANDARD ||
1549 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1550 		return;
1551 
1552 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1553 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1554 		if ((cap & (1 << i)) == 0)
1555 			continue;
1556 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1557 				!= PCI_CLASS_STORAGE_EXPRESS)
1558 			continue;
1559 
1560 		/* We've found a remapped device */
1561 		hpriv->remapped_nvme++;
1562 	}
1563 
1564 	if (!hpriv->remapped_nvme)
1565 		return;
1566 
1567 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1568 		 hpriv->remapped_nvme);
1569 	dev_warn(&pdev->dev,
1570 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1571 
1572 	/*
1573 	 * Don't rely on the msi-x capability in the remap case,
1574 	 * share the legacy interrupt across ahci and remapped devices.
1575 	 */
1576 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1577 }
1578 
1579 static int ahci_get_irq_vector(struct ata_host *host, int port)
1580 {
1581 	return pci_irq_vector(to_pci_dev(host->dev), port);
1582 }
1583 
1584 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1585 			struct ahci_host_priv *hpriv)
1586 {
1587 	int nvec;
1588 
1589 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1590 		return -ENODEV;
1591 
1592 	/*
1593 	 * If number of MSIs is less than number of ports then Sharing Last
1594 	 * Message mode could be enforced. In this case assume that advantage
1595 	 * of multipe MSIs is negated and use single MSI mode instead.
1596 	 */
1597 	if (n_ports > 1) {
1598 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1599 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1600 		if (nvec > 0) {
1601 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1602 				hpriv->get_irq_vector = ahci_get_irq_vector;
1603 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1604 				return nvec;
1605 			}
1606 
1607 			/*
1608 			 * Fallback to single MSI mode if the controller
1609 			 * enforced MRSM mode.
1610 			 */
1611 			printk(KERN_INFO
1612 				"ahci: MRSM is on, fallback to single MSI\n");
1613 			pci_free_irq_vectors(pdev);
1614 		}
1615 	}
1616 
1617 	/*
1618 	 * If the host is not capable of supporting per-port vectors, fall
1619 	 * back to single MSI before finally attempting single MSI-X.
1620 	 */
1621 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1622 	if (nvec == 1)
1623 		return nvec;
1624 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1625 }
1626 
1627 static void ahci_mark_external_port(struct ata_port *ap)
1628 {
1629 	struct ahci_host_priv *hpriv = ap->host->private_data;
1630 	void __iomem *port_mmio = ahci_port_base(ap);
1631 	u32 tmp;
1632 
1633 	/* mark external ports (hotplug-capable, eSATA) */
1634 	tmp = readl(port_mmio + PORT_CMD);
1635 	if (((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) ||
1636 	    (tmp & PORT_CMD_HPCP))
1637 		ap->pflags |= ATA_PFLAG_EXTERNAL;
1638 }
1639 
1640 static void ahci_update_initial_lpm_policy(struct ata_port *ap)
1641 {
1642 	struct ahci_host_priv *hpriv = ap->host->private_data;
1643 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1644 
1645 	/*
1646 	 * AHCI contains a known incompatibility between LPM and hot-plug
1647 	 * removal events, see 7.3.1 Hot Plug Removal Detection and Power
1648 	 * Management Interaction in AHCI 1.3.1. Therefore, do not enable
1649 	 * LPM if the port advertises itself as an external port.
1650 	 */
1651 	if (ap->pflags & ATA_PFLAG_EXTERNAL)
1652 		return;
1653 
1654 	/* user modified policy via module param */
1655 	if (mobile_lpm_policy != -1) {
1656 		policy = mobile_lpm_policy;
1657 		goto update_policy;
1658 	}
1659 
1660 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1661 		if (hpriv->cap & HOST_CAP_PART)
1662 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1663 		else if (hpriv->cap & HOST_CAP_SSC)
1664 			policy = ATA_LPM_MIN_POWER;
1665 	}
1666 
1667 update_policy:
1668 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1669 		ap->target_lpm_policy = policy;
1670 }
1671 
1672 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1673 {
1674 	u16 tmp16;
1675 
1676 	if (!(hpriv->flags & AHCI_HFLAG_INTEL_PCS_QUIRK))
1677 		return;
1678 
1679 	/*
1680 	 * port_map is determined from PORTS_IMPL PCI register which is
1681 	 * implemented as write or write-once register.  If the register
1682 	 * isn't programmed, ahci automatically generates it from number
1683 	 * of ports, which is good enough for PCS programming. It is
1684 	 * otherwise expected that platform firmware enables the ports
1685 	 * before the OS boots.
1686 	 */
1687 	pci_read_config_word(pdev, PCS_6, &tmp16);
1688 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1689 		tmp16 |= hpriv->port_map;
1690 		pci_write_config_word(pdev, PCS_6, tmp16);
1691 	}
1692 }
1693 
1694 static ssize_t remapped_nvme_show(struct device *dev,
1695 				  struct device_attribute *attr,
1696 				  char *buf)
1697 {
1698 	struct ata_host *host = dev_get_drvdata(dev);
1699 	struct ahci_host_priv *hpriv = host->private_data;
1700 
1701 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1702 }
1703 
1704 static DEVICE_ATTR_RO(remapped_nvme);
1705 
1706 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1707 {
1708 	unsigned int board_id = ent->driver_data;
1709 	struct ata_port_info pi = ahci_port_info[board_id];
1710 	const struct ata_port_info *ppi[] = { &pi, NULL };
1711 	struct device *dev = &pdev->dev;
1712 	struct ahci_host_priv *hpriv;
1713 	struct ata_host *host;
1714 	int n_ports, i, rc;
1715 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1716 
1717 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1718 
1719 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1720 
1721 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1722 	   can drive them all so if both drivers are selected make sure
1723 	   AHCI stays out of the way */
1724 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1725 		return -ENODEV;
1726 
1727 	/* Apple BIOS on MCP89 prevents us using AHCI */
1728 	if (is_mcp89_apple(pdev))
1729 		ahci_mcp89_apple_enable(pdev);
1730 
1731 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1732 	 * At the moment, we can only use the AHCI mode. Let the users know
1733 	 * that for SAS drives they're out of luck.
1734 	 */
1735 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1736 		dev_info(&pdev->dev,
1737 			 "PDC42819 can only drive SATA devices with this driver\n");
1738 
1739 	/* Some devices use non-standard BARs */
1740 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1741 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1742 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1743 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1744 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1745 		if (pdev->device == 0xa01c)
1746 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1747 		if (pdev->device == 0xa084)
1748 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1749 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1750 		if (pdev->device == 0x7a08)
1751 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1752 	}
1753 
1754 	/* acquire resources */
1755 	rc = pcim_enable_device(pdev);
1756 	if (rc)
1757 		return rc;
1758 
1759 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1760 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1761 		u8 map;
1762 
1763 		/* ICH6s share the same PCI ID for both piix and ahci
1764 		 * modes.  Enabling ahci mode while MAP indicates
1765 		 * combined mode is a bad idea.  Yield to ata_piix.
1766 		 */
1767 		pci_read_config_byte(pdev, ICH_MAP, &map);
1768 		if (map & 0x3) {
1769 			dev_info(&pdev->dev,
1770 				 "controller is in combined mode, can't enable AHCI mode\n");
1771 			return -ENODEV;
1772 		}
1773 	}
1774 
1775 	/* AHCI controllers often implement SFF compatible interface.
1776 	 * Grab all PCI BARs just in case.
1777 	 */
1778 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1779 	if (rc == -EBUSY)
1780 		pcim_pin_device(pdev);
1781 	if (rc)
1782 		return rc;
1783 
1784 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1785 	if (!hpriv)
1786 		return -ENOMEM;
1787 	hpriv->flags |= (unsigned long)pi.private_data;
1788 
1789 	/* MCP65 revision A1 and A2 can't do MSI */
1790 	if (board_id == board_ahci_mcp65 &&
1791 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1792 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1793 
1794 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1795 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1796 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1797 
1798 	/* only some SB600s can do 64bit DMA */
1799 	if (ahci_sb600_enable_64bit(pdev))
1800 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1801 
1802 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1803 
1804 	/* detect remapped nvme devices */
1805 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1806 
1807 	sysfs_add_file_to_group(&pdev->dev.kobj,
1808 				&dev_attr_remapped_nvme.attr,
1809 				NULL);
1810 
1811 #ifdef CONFIG_ARM64
1812 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1813 	    pdev->device == 0xa235 &&
1814 	    pdev->revision < 0x30)
1815 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1816 
1817 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1818 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1819 #endif
1820 
1821 	/* save initial config */
1822 	ahci_pci_save_initial_config(pdev, hpriv);
1823 
1824 	/* prepare host */
1825 	if (hpriv->cap & HOST_CAP_NCQ) {
1826 		pi.flags |= ATA_FLAG_NCQ;
1827 		/*
1828 		 * Auto-activate optimization is supposed to be
1829 		 * supported on all AHCI controllers indicating NCQ
1830 		 * capability, but it seems to be broken on some
1831 		 * chipsets including NVIDIAs.
1832 		 */
1833 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1834 			pi.flags |= ATA_FLAG_FPDMA_AA;
1835 
1836 		/*
1837 		 * All AHCI controllers should be forward-compatible
1838 		 * with the new auxiliary field. This code should be
1839 		 * conditionalized if any buggy AHCI controllers are
1840 		 * encountered.
1841 		 */
1842 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1843 	}
1844 
1845 	if (hpriv->cap & HOST_CAP_PMP)
1846 		pi.flags |= ATA_FLAG_PMP;
1847 
1848 	ahci_set_em_messages(hpriv, &pi);
1849 
1850 	if (ahci_broken_system_poweroff(pdev)) {
1851 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1852 		dev_info(&pdev->dev,
1853 			"quirky BIOS, skipping spindown on poweroff\n");
1854 	}
1855 
1856 	if (ahci_broken_lpm(pdev)) {
1857 		pi.flags |= ATA_FLAG_NO_LPM;
1858 		dev_warn(&pdev->dev,
1859 			 "BIOS update required for Link Power Management support\n");
1860 	}
1861 
1862 	if (ahci_broken_suspend(pdev)) {
1863 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1864 		dev_warn(&pdev->dev,
1865 			 "BIOS update required for suspend/resume\n");
1866 	}
1867 
1868 	if (ahci_broken_online(pdev)) {
1869 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1870 		dev_info(&pdev->dev,
1871 			 "online status unreliable, applying workaround\n");
1872 	}
1873 
1874 
1875 	/* Acer SA5-271 workaround modifies private_data */
1876 	acer_sa5_271_workaround(hpriv, pdev);
1877 
1878 	/* CAP.NP sometimes indicate the index of the last enabled
1879 	 * port, at other times, that of the last possible port, so
1880 	 * determining the maximum port number requires looking at
1881 	 * both CAP.NP and port_map.
1882 	 */
1883 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1884 
1885 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1886 	if (!host)
1887 		return -ENOMEM;
1888 	host->private_data = hpriv;
1889 
1890 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1891 		/* legacy intx interrupts */
1892 		pci_intx(pdev, 1);
1893 	}
1894 	hpriv->irq = pci_irq_vector(pdev, 0);
1895 
1896 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1897 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1898 	else
1899 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1900 
1901 	if (!(hpriv->cap & HOST_CAP_PART))
1902 		host->flags |= ATA_HOST_NO_PART;
1903 
1904 	if (!(hpriv->cap & HOST_CAP_SSC))
1905 		host->flags |= ATA_HOST_NO_SSC;
1906 
1907 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
1908 		host->flags |= ATA_HOST_NO_DEVSLP;
1909 
1910 	if (pi.flags & ATA_FLAG_EM)
1911 		ahci_reset_em(host);
1912 
1913 	for (i = 0; i < host->n_ports; i++) {
1914 		struct ata_port *ap = host->ports[i];
1915 
1916 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1917 		ata_port_pbar_desc(ap, ahci_pci_bar,
1918 				   0x100 + ap->port_no * 0x80, "port");
1919 
1920 		/* set enclosure management message type */
1921 		if (ap->flags & ATA_FLAG_EM)
1922 			ap->em_message_type = hpriv->em_msg_type;
1923 
1924 		ahci_mark_external_port(ap);
1925 
1926 		ahci_update_initial_lpm_policy(ap);
1927 
1928 		/* disabled/not-implemented port */
1929 		if (!(hpriv->port_map & (1 << i)))
1930 			ap->ops = &ata_dummy_port_ops;
1931 	}
1932 
1933 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1934 	ahci_p5wdh_workaround(host);
1935 
1936 	/* apply gtf filter quirk */
1937 	ahci_gtf_filter_workaround(host);
1938 
1939 	/* initialize adapter */
1940 	rc = ahci_configure_dma_masks(pdev, hpriv);
1941 	if (rc)
1942 		return rc;
1943 
1944 	rc = ahci_pci_reset_controller(host);
1945 	if (rc)
1946 		return rc;
1947 
1948 	ahci_pci_init_controller(host);
1949 	ahci_pci_print_info(host);
1950 
1951 	pci_set_master(pdev);
1952 
1953 	rc = ahci_host_activate(host, &ahci_sht);
1954 	if (rc)
1955 		return rc;
1956 
1957 	pm_runtime_put_noidle(&pdev->dev);
1958 	return 0;
1959 }
1960 
1961 static void ahci_shutdown_one(struct pci_dev *pdev)
1962 {
1963 	ata_pci_shutdown_one(pdev);
1964 }
1965 
1966 static void ahci_remove_one(struct pci_dev *pdev)
1967 {
1968 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1969 				     &dev_attr_remapped_nvme.attr,
1970 				     NULL);
1971 	pm_runtime_get_noresume(&pdev->dev);
1972 	ata_pci_remove_one(pdev);
1973 }
1974 
1975 module_pci_driver(ahci_pci_driver);
1976 
1977 MODULE_AUTHOR("Jeff Garzik");
1978 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1979 MODULE_LICENSE("GPL");
1980 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1981 MODULE_VERSION(DRV_VERSION);
1982