xref: /openbmc/linux/drivers/ata/ahci.c (revision d43e11d9)
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_low_power,
54 	board_ahci_no_debounce_delay,
55 	board_ahci_nomsi,
56 	board_ahci_noncq,
57 	board_ahci_nosntf,
58 	board_ahci_yes_fbs,
59 
60 	/* board IDs for specific chipsets in alphabetical order */
61 	board_ahci_al,
62 	board_ahci_avn,
63 	board_ahci_mcp65,
64 	board_ahci_mcp77,
65 	board_ahci_mcp89,
66 	board_ahci_mv,
67 	board_ahci_sb600,
68 	board_ahci_sb700,	/* for SB700 and SB800 */
69 	board_ahci_vt8251,
70 
71 	/*
72 	 * board IDs for Intel chipsets that support more than 6 ports
73 	 * *and* end up needing the PCS quirk.
74 	 */
75 	board_ahci_pcs7,
76 
77 	/* aliases */
78 	board_ahci_mcp_linux	= board_ahci_mcp65,
79 	board_ahci_mcp67	= board_ahci_mcp65,
80 	board_ahci_mcp73	= board_ahci_mcp65,
81 	board_ahci_mcp79	= board_ahci_mcp77,
82 };
83 
84 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
85 static void ahci_remove_one(struct pci_dev *dev);
86 static void ahci_shutdown_one(struct pci_dev *dev);
87 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv);
88 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
89 				 unsigned long deadline);
90 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
91 			      unsigned long deadline);
92 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
93 static bool is_mcp89_apple(struct pci_dev *pdev);
94 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
95 				unsigned long deadline);
96 #ifdef CONFIG_PM
97 static int ahci_pci_device_runtime_suspend(struct device *dev);
98 static int ahci_pci_device_runtime_resume(struct device *dev);
99 #ifdef CONFIG_PM_SLEEP
100 static int ahci_pci_device_suspend(struct device *dev);
101 static int ahci_pci_device_resume(struct device *dev);
102 #endif
103 #endif /* CONFIG_PM */
104 
105 static const struct scsi_host_template ahci_sht = {
106 	AHCI_SHT("ahci"),
107 };
108 
109 static struct ata_port_operations ahci_vt8251_ops = {
110 	.inherits		= &ahci_ops,
111 	.hardreset		= ahci_vt8251_hardreset,
112 };
113 
114 static struct ata_port_operations ahci_p5wdh_ops = {
115 	.inherits		= &ahci_ops,
116 	.hardreset		= ahci_p5wdh_hardreset,
117 };
118 
119 static struct ata_port_operations ahci_avn_ops = {
120 	.inherits		= &ahci_ops,
121 	.hardreset		= ahci_avn_hardreset,
122 };
123 
124 static const struct ata_port_info ahci_port_info[] = {
125 	/* by features */
126 	[board_ahci] = {
127 		.flags		= AHCI_FLAG_COMMON,
128 		.pio_mask	= ATA_PIO4,
129 		.udma_mask	= ATA_UDMA6,
130 		.port_ops	= &ahci_ops,
131 	},
132 	[board_ahci_43bit_dma] = {
133 		AHCI_HFLAGS	(AHCI_HFLAG_43BIT_ONLY),
134 		.flags		= AHCI_FLAG_COMMON,
135 		.pio_mask	= ATA_PIO4,
136 		.udma_mask	= ATA_UDMA6,
137 		.port_ops	= &ahci_ops,
138 	},
139 	[board_ahci_ign_iferr] = {
140 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
141 		.flags		= AHCI_FLAG_COMMON,
142 		.pio_mask	= ATA_PIO4,
143 		.udma_mask	= ATA_UDMA6,
144 		.port_ops	= &ahci_ops,
145 	},
146 	[board_ahci_low_power] = {
147 		AHCI_HFLAGS	(AHCI_HFLAG_USE_LPM_POLICY),
148 		.flags		= AHCI_FLAG_COMMON,
149 		.pio_mask	= ATA_PIO4,
150 		.udma_mask	= ATA_UDMA6,
151 		.port_ops	= &ahci_ops,
152 	},
153 	[board_ahci_no_debounce_delay] = {
154 		.flags		= AHCI_FLAG_COMMON,
155 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
156 		.pio_mask	= ATA_PIO4,
157 		.udma_mask	= ATA_UDMA6,
158 		.port_ops	= &ahci_ops,
159 	},
160 	[board_ahci_nomsi] = {
161 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
162 		.flags		= AHCI_FLAG_COMMON,
163 		.pio_mask	= ATA_PIO4,
164 		.udma_mask	= ATA_UDMA6,
165 		.port_ops	= &ahci_ops,
166 	},
167 	[board_ahci_noncq] = {
168 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
169 		.flags		= AHCI_FLAG_COMMON,
170 		.pio_mask	= ATA_PIO4,
171 		.udma_mask	= ATA_UDMA6,
172 		.port_ops	= &ahci_ops,
173 	},
174 	[board_ahci_nosntf] = {
175 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
176 		.flags		= AHCI_FLAG_COMMON,
177 		.pio_mask	= ATA_PIO4,
178 		.udma_mask	= ATA_UDMA6,
179 		.port_ops	= &ahci_ops,
180 	},
181 	[board_ahci_yes_fbs] = {
182 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
183 		.flags		= AHCI_FLAG_COMMON,
184 		.pio_mask	= ATA_PIO4,
185 		.udma_mask	= ATA_UDMA6,
186 		.port_ops	= &ahci_ops,
187 	},
188 	/* by chipsets */
189 	[board_ahci_al] = {
190 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
191 		.flags		= AHCI_FLAG_COMMON,
192 		.pio_mask	= ATA_PIO4,
193 		.udma_mask	= ATA_UDMA6,
194 		.port_ops	= &ahci_ops,
195 	},
196 	[board_ahci_avn] = {
197 		.flags		= AHCI_FLAG_COMMON,
198 		.pio_mask	= ATA_PIO4,
199 		.udma_mask	= ATA_UDMA6,
200 		.port_ops	= &ahci_avn_ops,
201 	},
202 	[board_ahci_mcp65] = {
203 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
204 				 AHCI_HFLAG_YES_NCQ),
205 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
206 		.pio_mask	= ATA_PIO4,
207 		.udma_mask	= ATA_UDMA6,
208 		.port_ops	= &ahci_ops,
209 	},
210 	[board_ahci_mcp77] = {
211 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
212 		.flags		= AHCI_FLAG_COMMON,
213 		.pio_mask	= ATA_PIO4,
214 		.udma_mask	= ATA_UDMA6,
215 		.port_ops	= &ahci_ops,
216 	},
217 	[board_ahci_mcp89] = {
218 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
219 		.flags		= AHCI_FLAG_COMMON,
220 		.pio_mask	= ATA_PIO4,
221 		.udma_mask	= ATA_UDMA6,
222 		.port_ops	= &ahci_ops,
223 	},
224 	[board_ahci_mv] = {
225 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
226 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
227 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
228 		.pio_mask	= ATA_PIO4,
229 		.udma_mask	= ATA_UDMA6,
230 		.port_ops	= &ahci_ops,
231 	},
232 	[board_ahci_sb600] = {
233 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
234 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
235 				 AHCI_HFLAG_32BIT_ONLY),
236 		.flags		= AHCI_FLAG_COMMON,
237 		.pio_mask	= ATA_PIO4,
238 		.udma_mask	= ATA_UDMA6,
239 		.port_ops	= &ahci_pmp_retry_srst_ops,
240 	},
241 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
242 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
243 		.flags		= AHCI_FLAG_COMMON,
244 		.pio_mask	= ATA_PIO4,
245 		.udma_mask	= ATA_UDMA6,
246 		.port_ops	= &ahci_pmp_retry_srst_ops,
247 	},
248 	[board_ahci_vt8251] = {
249 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
250 		.flags		= AHCI_FLAG_COMMON,
251 		.pio_mask	= ATA_PIO4,
252 		.udma_mask	= ATA_UDMA6,
253 		.port_ops	= &ahci_vt8251_ops,
254 	},
255 	[board_ahci_pcs7] = {
256 		.flags		= AHCI_FLAG_COMMON,
257 		.pio_mask	= ATA_PIO4,
258 		.udma_mask	= ATA_UDMA6,
259 		.port_ops	= &ahci_ops,
260 	},
261 };
262 
263 static const struct pci_device_id ahci_pci_tbl[] = {
264 	/* Intel */
265 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
266 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
267 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
268 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
269 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
270 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
271 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
272 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
273 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
274 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
275 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
276 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
277 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8/Lewisburg RAID*/
278 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
279 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
280 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
281 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
282 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
283 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
284 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
285 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
286 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_low_power }, /* ICH9M */
287 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_low_power }, /* ICH9M */
288 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_low_power }, /* ICH9M */
289 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_low_power }, /* ICH9M */
290 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_low_power }, /* ICH9M */
291 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
292 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_low_power }, /* ICH9M */
293 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
294 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
295 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
296 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
297 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
298 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
301 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
302 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_low_power }, /* PCH M AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
304 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_low_power }, /* PCH M RAID */
305 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
320 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
321 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
322 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
323 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
324 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
325 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
326 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
327 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_low_power }, /* CPT M AHCI */
328 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
329 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_low_power }, /* CPT M RAID */
330 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
331 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
333 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
334 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
335 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
336 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_low_power }, /* Panther M AHCI */
338 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
339 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
340 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
341 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_low_power }, /* Panther M RAID */
342 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
343 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
344 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_low_power }, /* Lynx M AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
346 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_low_power }, /* Lynx M RAID */
347 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
348 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_low_power }, /* Lynx M RAID */
349 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
350 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_low_power }, /* Lynx M RAID */
351 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_low_power }, /* Lynx LP AHCI */
352 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_low_power }, /* Lynx LP AHCI */
353 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_low_power }, /* Lynx LP RAID */
354 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_low_power }, /* Lynx LP RAID */
355 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_low_power }, /* Lynx LP RAID */
356 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_low_power }, /* Lynx LP RAID */
357 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_low_power }, /* Lynx LP RAID */
358 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_low_power }, /* Lynx LP RAID */
359 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_low_power }, /* Cannon Lake PCH-LP AHCI */
360 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
361 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
362 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
363 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
367 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
368 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
369 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
370 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
371 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
372 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
373 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
374 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
375 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
376 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
377 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* *burg SATA0 'RAID' */
378 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* *burg SATA1 'RAID' */
379 	{ PCI_VDEVICE(INTEL, 0x282f), board_ahci }, /* *burg SATA2 'RAID' */
380 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
381 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
382 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
383 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
384 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
386 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
387 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
388 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
389 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
390 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
391 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
392 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
393 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_low_power }, /* Wildcat LP AHCI */
394 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_low_power }, /* Wildcat LP RAID */
395 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_low_power }, /* Wildcat LP RAID */
396 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_low_power }, /* Wildcat LP RAID */
397 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
398 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_low_power }, /* 9 Series M AHCI */
399 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
400 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_low_power }, /* 9 Series M RAID */
401 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
402 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_low_power }, /* 9 Series M RAID */
403 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
404 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_low_power }, /* 9 Series M RAID */
405 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_low_power }, /* Sunrise LP AHCI */
406 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_low_power }, /* Sunrise LP RAID */
407 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_low_power }, /* Sunrise LP RAID */
408 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
409 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_low_power }, /* Sunrise M AHCI */
410 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
411 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
412 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_low_power }, /* Sunrise M RAID */
413 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
414 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
415 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
416 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
417 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
418 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
419 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
420 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
421 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
422 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
423 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
424 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
425 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_low_power }, /* Bay Trail AHCI */
426 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_low_power }, /* Bay Trail AHCI */
427 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_low_power }, /* Cherry Tr. AHCI */
428 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_low_power }, /* ApolloLake AHCI */
429 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_low_power }, /* Ice Lake LP AHCI */
430 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_low_power }, /* Comet Lake PCH-U AHCI */
431 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* Comet Lake PCH RAID */
432 	/* Elkhart Lake IDs 0x4b60 & 0x4b62 https://sata-io.org/product/8803 not tested yet */
433 	{ PCI_VDEVICE(INTEL, 0x4b63), board_ahci_low_power }, /* Elkhart Lake AHCI */
434 
435 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
436 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
437 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
438 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
439 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
440 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
441 	/* May need to update quirk_jmicron_async_suspend() for additions */
442 
443 	/* ATI */
444 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
445 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
446 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
447 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
448 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
449 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
450 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
451 
452 	/* Amazon's Annapurna Labs support */
453 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
454 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
455 		.class_mask = 0xffffff,
456 		board_ahci_al },
457 	/* AMD */
458 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
459 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
460 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
461 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_low_power }, /* AMD Green Sardine */
462 	/* AMD is using RAID class only for ahci controllers */
463 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
464 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
465 
466 	/* Dell S140/S150 */
467 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
468 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
469 
470 	/* VIA */
471 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
472 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
473 
474 	/* NVIDIA */
475 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
476 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
477 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
478 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
479 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
480 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
481 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
482 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
483 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
486 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
487 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
488 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
489 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
490 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
491 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
492 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
493 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
494 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
495 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
502 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
503 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
504 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
505 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
506 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
507 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
508 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
509 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
510 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
511 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
514 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
515 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
516 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
517 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
518 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
519 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
520 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
521 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
522 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
549 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
550 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
551 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
552 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
553 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
554 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
555 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
556 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
557 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
558 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
559 
560 	/* SiS */
561 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
562 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
563 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
564 
565 	/* ST Microelectronics */
566 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
567 
568 	/* Marvell */
569 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
570 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
571 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
572 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
573 	  .class_mask = 0xffffff,
574 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
575 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
576 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
577 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
578 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
579 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
580 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
581 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
582 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
583 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
584 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
585 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
586 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
587 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
588 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
589 	  .driver_data = board_ahci_yes_fbs },
590 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
591 	  .driver_data = board_ahci_yes_fbs },
592 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
593 	  .driver_data = board_ahci_yes_fbs },
594 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
595 	  .driver_data = board_ahci_yes_fbs },
596 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
597 	  .driver_data = board_ahci_no_debounce_delay },
598 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
599 	  .driver_data = board_ahci_yes_fbs },
600 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
601 	  .driver_data = board_ahci_yes_fbs },
602 
603 	/* Promise */
604 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
605 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
606 
607 	/* ASMedia */
608 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci_43bit_dma },	/* ASM1060 */
609 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci_43bit_dma },	/* ASM1060 */
610 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci_43bit_dma },	/* ASM1061 */
611 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci_43bit_dma },	/* ASM1061/1062 */
612 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci_43bit_dma },	/* ASM1061R */
613 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci_43bit_dma },	/* ASM1062R */
614 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci_43bit_dma },	/* ASM1062+JMB575 */
615 	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
616 	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
617 	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
618 	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
619 	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
620 
621 	/*
622 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
623 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
624 	 */
625 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
626 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
627 
628 	/* Enmotus */
629 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
630 
631 	/* Loongson */
632 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
633 
634 	/* Generic, PCI class code for AHCI */
635 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
636 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
637 
638 	{ }	/* terminate list */
639 };
640 
641 static const struct dev_pm_ops ahci_pci_pm_ops = {
642 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
643 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
644 			   ahci_pci_device_runtime_resume, NULL)
645 };
646 
647 static struct pci_driver ahci_pci_driver = {
648 	.name			= DRV_NAME,
649 	.id_table		= ahci_pci_tbl,
650 	.probe			= ahci_init_one,
651 	.remove			= ahci_remove_one,
652 	.shutdown		= ahci_shutdown_one,
653 	.driver = {
654 		.pm		= &ahci_pci_pm_ops,
655 	},
656 };
657 
658 #if IS_ENABLED(CONFIG_PATA_MARVELL)
659 static int marvell_enable;
660 #else
661 static int marvell_enable = 1;
662 #endif
663 module_param(marvell_enable, int, 0644);
664 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
665 
666 static int mobile_lpm_policy = -1;
667 module_param(mobile_lpm_policy, int, 0644);
668 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
669 
670 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
671 					 struct ahci_host_priv *hpriv)
672 {
673 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
674 		dev_info(&pdev->dev, "JMB361 has only one port\n");
675 		hpriv->saved_port_map = 1;
676 	}
677 
678 	/*
679 	 * Temporary Marvell 6145 hack: PATA port presence
680 	 * is asserted through the standard AHCI port
681 	 * presence register, as bit 4 (counting from 0)
682 	 */
683 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
684 		if (pdev->device == 0x6121)
685 			hpriv->mask_port_map = 0x3;
686 		else
687 			hpriv->mask_port_map = 0xf;
688 		dev_info(&pdev->dev,
689 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
690 	}
691 
692 	ahci_save_initial_config(&pdev->dev, hpriv);
693 }
694 
695 static int ahci_pci_reset_controller(struct ata_host *host)
696 {
697 	struct pci_dev *pdev = to_pci_dev(host->dev);
698 	struct ahci_host_priv *hpriv = host->private_data;
699 	int rc;
700 
701 	rc = ahci_reset_controller(host);
702 	if (rc)
703 		return rc;
704 
705 	/*
706 	 * If platform firmware failed to enable ports, try to enable
707 	 * them here.
708 	 */
709 	ahci_intel_pcs_quirk(pdev, hpriv);
710 
711 	return 0;
712 }
713 
714 static void ahci_pci_init_controller(struct ata_host *host)
715 {
716 	struct ahci_host_priv *hpriv = host->private_data;
717 	struct pci_dev *pdev = to_pci_dev(host->dev);
718 	void __iomem *port_mmio;
719 	u32 tmp;
720 	int mv;
721 
722 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
723 		if (pdev->device == 0x6121)
724 			mv = 2;
725 		else
726 			mv = 4;
727 		port_mmio = __ahci_port_base(hpriv, mv);
728 
729 		writel(0, port_mmio + PORT_IRQ_MASK);
730 
731 		/* clear port IRQ */
732 		tmp = readl(port_mmio + PORT_IRQ_STAT);
733 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
734 		if (tmp)
735 			writel(tmp, port_mmio + PORT_IRQ_STAT);
736 	}
737 
738 	ahci_init_controller(host);
739 }
740 
741 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
742 				 unsigned long deadline)
743 {
744 	struct ata_port *ap = link->ap;
745 	struct ahci_host_priv *hpriv = ap->host->private_data;
746 	bool online;
747 	int rc;
748 
749 	hpriv->stop_engine(ap);
750 
751 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
752 				 deadline, &online, NULL);
753 
754 	hpriv->start_engine(ap);
755 
756 	/* vt8251 doesn't clear BSY on signature FIS reception,
757 	 * request follow-up softreset.
758 	 */
759 	return online ? -EAGAIN : rc;
760 }
761 
762 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
763 				unsigned long deadline)
764 {
765 	struct ata_port *ap = link->ap;
766 	struct ahci_port_priv *pp = ap->private_data;
767 	struct ahci_host_priv *hpriv = ap->host->private_data;
768 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
769 	struct ata_taskfile tf;
770 	bool online;
771 	int rc;
772 
773 	hpriv->stop_engine(ap);
774 
775 	/* clear D2H reception area to properly wait for D2H FIS */
776 	ata_tf_init(link->device, &tf);
777 	tf.status = ATA_BUSY;
778 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
779 
780 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
781 				 deadline, &online, NULL);
782 
783 	hpriv->start_engine(ap);
784 
785 	/* The pseudo configuration device on SIMG4726 attached to
786 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
787 	 * hardreset if no device is attached to the first downstream
788 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
789 	 * work around this, wait for !BSY only briefly.  If BSY isn't
790 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
791 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
792 	 *
793 	 * Wait for two seconds.  Devices attached to downstream port
794 	 * which can't process the following IDENTIFY after this will
795 	 * have to be reset again.  For most cases, this should
796 	 * suffice while making probing snappish enough.
797 	 */
798 	if (online) {
799 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
800 					  ahci_check_ready);
801 		if (rc)
802 			ahci_kick_engine(ap);
803 	}
804 	return rc;
805 }
806 
807 /*
808  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
809  *
810  * It has been observed with some SSDs that the timing of events in the
811  * link synchronization phase can leave the port in a state that can not
812  * be recovered by a SATA-hard-reset alone.  The failing signature is
813  * SStatus.DET stuck at 1 ("Device presence detected but Phy
814  * communication not established").  It was found that unloading and
815  * reloading the driver when this problem occurs allows the drive
816  * connection to be recovered (DET advanced to 0x3).  The critical
817  * component of reloading the driver is that the port state machines are
818  * reset by bouncing "port enable" in the AHCI PCS configuration
819  * register.  So, reproduce that effect by bouncing a port whenever we
820  * see DET==1 after a reset.
821  */
822 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
823 			      unsigned long deadline)
824 {
825 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
826 	struct ata_port *ap = link->ap;
827 	struct ahci_port_priv *pp = ap->private_data;
828 	struct ahci_host_priv *hpriv = ap->host->private_data;
829 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
830 	unsigned long tmo = deadline - jiffies;
831 	struct ata_taskfile tf;
832 	bool online;
833 	int rc, i;
834 
835 	hpriv->stop_engine(ap);
836 
837 	for (i = 0; i < 2; i++) {
838 		u16 val;
839 		u32 sstatus;
840 		int port = ap->port_no;
841 		struct ata_host *host = ap->host;
842 		struct pci_dev *pdev = to_pci_dev(host->dev);
843 
844 		/* clear D2H reception area to properly wait for D2H FIS */
845 		ata_tf_init(link->device, &tf);
846 		tf.status = ATA_BUSY;
847 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
848 
849 		rc = sata_link_hardreset(link, timing, deadline, &online,
850 				ahci_check_ready);
851 
852 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
853 				(sstatus & 0xf) != 1)
854 			break;
855 
856 		ata_link_info(link,  "avn bounce port%d\n", port);
857 
858 		pci_read_config_word(pdev, 0x92, &val);
859 		val &= ~(1 << port);
860 		pci_write_config_word(pdev, 0x92, val);
861 		ata_msleep(ap, 1000);
862 		val |= 1 << port;
863 		pci_write_config_word(pdev, 0x92, val);
864 		deadline += tmo;
865 	}
866 
867 	hpriv->start_engine(ap);
868 
869 	if (online)
870 		*class = ahci_dev_classify(ap);
871 
872 	return rc;
873 }
874 
875 
876 #ifdef CONFIG_PM
877 static void ahci_pci_disable_interrupts(struct ata_host *host)
878 {
879 	struct ahci_host_priv *hpriv = host->private_data;
880 	void __iomem *mmio = hpriv->mmio;
881 	u32 ctl;
882 
883 	/* AHCI spec rev1.1 section 8.3.3:
884 	 * Software must disable interrupts prior to requesting a
885 	 * transition of the HBA to D3 state.
886 	 */
887 	ctl = readl(mmio + HOST_CTL);
888 	ctl &= ~HOST_IRQ_EN;
889 	writel(ctl, mmio + HOST_CTL);
890 	readl(mmio + HOST_CTL); /* flush */
891 }
892 
893 static int ahci_pci_device_runtime_suspend(struct device *dev)
894 {
895 	struct pci_dev *pdev = to_pci_dev(dev);
896 	struct ata_host *host = pci_get_drvdata(pdev);
897 
898 	ahci_pci_disable_interrupts(host);
899 	return 0;
900 }
901 
902 static int ahci_pci_device_runtime_resume(struct device *dev)
903 {
904 	struct pci_dev *pdev = to_pci_dev(dev);
905 	struct ata_host *host = pci_get_drvdata(pdev);
906 	int rc;
907 
908 	rc = ahci_pci_reset_controller(host);
909 	if (rc)
910 		return rc;
911 	ahci_pci_init_controller(host);
912 	return 0;
913 }
914 
915 #ifdef CONFIG_PM_SLEEP
916 static int ahci_pci_device_suspend(struct device *dev)
917 {
918 	struct pci_dev *pdev = to_pci_dev(dev);
919 	struct ata_host *host = pci_get_drvdata(pdev);
920 	struct ahci_host_priv *hpriv = host->private_data;
921 
922 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
923 		dev_err(&pdev->dev,
924 			"BIOS update required for suspend/resume\n");
925 		return -EIO;
926 	}
927 
928 	ahci_pci_disable_interrupts(host);
929 	ata_host_suspend(host, PMSG_SUSPEND);
930 	return 0;
931 }
932 
933 static int ahci_pci_device_resume(struct device *dev)
934 {
935 	struct pci_dev *pdev = to_pci_dev(dev);
936 	struct ata_host *host = pci_get_drvdata(pdev);
937 	int rc;
938 
939 	/* Apple BIOS helpfully mangles the registers on resume */
940 	if (is_mcp89_apple(pdev))
941 		ahci_mcp89_apple_enable(pdev);
942 
943 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
944 		rc = ahci_pci_reset_controller(host);
945 		if (rc)
946 			return rc;
947 
948 		ahci_pci_init_controller(host);
949 	}
950 
951 	ata_host_resume(host);
952 
953 	return 0;
954 }
955 #endif
956 
957 #endif /* CONFIG_PM */
958 
959 static int ahci_configure_dma_masks(struct pci_dev *pdev,
960 				    struct ahci_host_priv *hpriv)
961 {
962 	int dma_bits;
963 	int rc;
964 
965 	if (hpriv->cap & HOST_CAP_64) {
966 		dma_bits = 64;
967 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
968 			dma_bits = 43;
969 	} else {
970 		dma_bits = 32;
971 	}
972 
973 	/*
974 	 * If the device fixup already set the dma_mask to some non-standard
975 	 * value, don't extend it here. This happens on STA2X11, for example.
976 	 *
977 	 * XXX: manipulating the DMA mask from platform code is completely
978 	 * bogus, platform code should use dev->bus_dma_limit instead..
979 	 */
980 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
981 		return 0;
982 
983 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
984 	if (rc)
985 		dev_err(&pdev->dev, "DMA enable failed\n");
986 	return rc;
987 }
988 
989 static void ahci_pci_print_info(struct ata_host *host)
990 {
991 	struct pci_dev *pdev = to_pci_dev(host->dev);
992 	u16 cc;
993 	const char *scc_s;
994 
995 	pci_read_config_word(pdev, 0x0a, &cc);
996 	if (cc == PCI_CLASS_STORAGE_IDE)
997 		scc_s = "IDE";
998 	else if (cc == PCI_CLASS_STORAGE_SATA)
999 		scc_s = "SATA";
1000 	else if (cc == PCI_CLASS_STORAGE_RAID)
1001 		scc_s = "RAID";
1002 	else
1003 		scc_s = "unknown";
1004 
1005 	ahci_print_info(host, scc_s);
1006 }
1007 
1008 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1009  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1010  * support PMP and the 4726 either directly exports the device
1011  * attached to the first downstream port or acts as a hardware storage
1012  * controller and emulate a single ATA device (can be RAID 0/1 or some
1013  * other configuration).
1014  *
1015  * When there's no device attached to the first downstream port of the
1016  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1017  * configure the 4726.  However, ATA emulation of the device is very
1018  * lame.  It doesn't send signature D2H Reg FIS after the initial
1019  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1020  *
1021  * The following function works around the problem by always using
1022  * hardreset on the port and not depending on receiving signature FIS
1023  * afterward.  If signature FIS isn't received soon, ATA class is
1024  * assumed without follow-up softreset.
1025  */
1026 static void ahci_p5wdh_workaround(struct ata_host *host)
1027 {
1028 	static const struct dmi_system_id sysids[] = {
1029 		{
1030 			.ident = "P5W DH Deluxe",
1031 			.matches = {
1032 				DMI_MATCH(DMI_SYS_VENDOR,
1033 					  "ASUSTEK COMPUTER INC"),
1034 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1035 			},
1036 		},
1037 		{ }
1038 	};
1039 	struct pci_dev *pdev = to_pci_dev(host->dev);
1040 
1041 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1042 	    dmi_check_system(sysids)) {
1043 		struct ata_port *ap = host->ports[1];
1044 
1045 		dev_info(&pdev->dev,
1046 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1047 
1048 		ap->ops = &ahci_p5wdh_ops;
1049 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1050 	}
1051 }
1052 
1053 /*
1054  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1055  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1056  */
1057 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1058 {
1059 	u32 val;
1060 
1061 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1062 
1063 	pci_read_config_dword(pdev, 0xf8, &val);
1064 	val |= 1 << 0x1b;
1065 	/* the following changes the device ID, but appears not to affect function */
1066 	/* val = (val & ~0xf0000000) | 0x80000000; */
1067 	pci_write_config_dword(pdev, 0xf8, val);
1068 
1069 	pci_read_config_dword(pdev, 0x54c, &val);
1070 	val |= 1 << 0xc;
1071 	pci_write_config_dword(pdev, 0x54c, val);
1072 
1073 	pci_read_config_dword(pdev, 0x4a4, &val);
1074 	val &= 0xff;
1075 	val |= 0x01060100;
1076 	pci_write_config_dword(pdev, 0x4a4, val);
1077 
1078 	pci_read_config_dword(pdev, 0x54c, &val);
1079 	val &= ~(1 << 0xc);
1080 	pci_write_config_dword(pdev, 0x54c, val);
1081 
1082 	pci_read_config_dword(pdev, 0xf8, &val);
1083 	val &= ~(1 << 0x1b);
1084 	pci_write_config_dword(pdev, 0xf8, val);
1085 }
1086 
1087 static bool is_mcp89_apple(struct pci_dev *pdev)
1088 {
1089 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1090 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1091 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1092 		pdev->subsystem_device == 0xcb89;
1093 }
1094 
1095 /* only some SB600 ahci controllers can do 64bit DMA */
1096 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1097 {
1098 	static const struct dmi_system_id sysids[] = {
1099 		/*
1100 		 * The oldest version known to be broken is 0901 and
1101 		 * working is 1501 which was released on 2007-10-26.
1102 		 * Enable 64bit DMA on 1501 and anything newer.
1103 		 *
1104 		 * Please read bko#9412 for more info.
1105 		 */
1106 		{
1107 			.ident = "ASUS M2A-VM",
1108 			.matches = {
1109 				DMI_MATCH(DMI_BOARD_VENDOR,
1110 					  "ASUSTeK Computer INC."),
1111 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1112 			},
1113 			.driver_data = "20071026",	/* yyyymmdd */
1114 		},
1115 		/*
1116 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1117 		 * support 64bit DMA.
1118 		 *
1119 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1120 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1121 		 * This spelling mistake was fixed in BIOS version 1.5, so
1122 		 * 1.5 and later have the Manufacturer as
1123 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1124 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1125 		 *
1126 		 * BIOS versions earlier than 1.9 had a Board Product Name
1127 		 * DMI field of "MS-7376". This was changed to be
1128 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1129 		 * match on DMI_BOARD_NAME of "MS-7376".
1130 		 */
1131 		{
1132 			.ident = "MSI K9A2 Platinum",
1133 			.matches = {
1134 				DMI_MATCH(DMI_BOARD_VENDOR,
1135 					  "MICRO-STAR INTER"),
1136 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1137 			},
1138 		},
1139 		/*
1140 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1141 		 * 64bit DMA.
1142 		 *
1143 		 * This board also had the typo mentioned above in the
1144 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1145 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1146 		 */
1147 		{
1148 			.ident = "MSI K9AGM2",
1149 			.matches = {
1150 				DMI_MATCH(DMI_BOARD_VENDOR,
1151 					  "MICRO-STAR INTER"),
1152 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1153 			},
1154 		},
1155 		/*
1156 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1157 		 * (all release versions from 0301 to 1206 were tested)
1158 		 */
1159 		{
1160 			.ident = "ASUS M3A",
1161 			.matches = {
1162 				DMI_MATCH(DMI_BOARD_VENDOR,
1163 					  "ASUSTeK Computer INC."),
1164 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1165 			},
1166 		},
1167 		{ }
1168 	};
1169 	const struct dmi_system_id *match;
1170 	int year, month, date;
1171 	char buf[9];
1172 
1173 	match = dmi_first_match(sysids);
1174 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1175 	    !match)
1176 		return false;
1177 
1178 	if (!match->driver_data)
1179 		goto enable_64bit;
1180 
1181 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1182 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1183 
1184 	if (strcmp(buf, match->driver_data) >= 0)
1185 		goto enable_64bit;
1186 	else {
1187 		dev_warn(&pdev->dev,
1188 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1189 			 match->ident);
1190 		return false;
1191 	}
1192 
1193 enable_64bit:
1194 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1195 	return true;
1196 }
1197 
1198 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1199 {
1200 	static const struct dmi_system_id broken_systems[] = {
1201 		{
1202 			.ident = "HP Compaq nx6310",
1203 			.matches = {
1204 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1205 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1206 			},
1207 			/* PCI slot number of the controller */
1208 			.driver_data = (void *)0x1FUL,
1209 		},
1210 		{
1211 			.ident = "HP Compaq 6720s",
1212 			.matches = {
1213 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1214 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1215 			},
1216 			/* PCI slot number of the controller */
1217 			.driver_data = (void *)0x1FUL,
1218 		},
1219 
1220 		{ }	/* terminate list */
1221 	};
1222 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1223 
1224 	if (dmi) {
1225 		unsigned long slot = (unsigned long)dmi->driver_data;
1226 		/* apply the quirk only to on-board controllers */
1227 		return slot == PCI_SLOT(pdev->devfn);
1228 	}
1229 
1230 	return false;
1231 }
1232 
1233 static bool ahci_broken_suspend(struct pci_dev *pdev)
1234 {
1235 	static const struct dmi_system_id sysids[] = {
1236 		/*
1237 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1238 		 * to the harddisk doesn't become online after
1239 		 * resuming from STR.  Warn and fail suspend.
1240 		 *
1241 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1242 		 *
1243 		 * Use dates instead of versions to match as HP is
1244 		 * apparently recycling both product and version
1245 		 * strings.
1246 		 *
1247 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1248 		 */
1249 		{
1250 			.ident = "dv4",
1251 			.matches = {
1252 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1253 				DMI_MATCH(DMI_PRODUCT_NAME,
1254 					  "HP Pavilion dv4 Notebook PC"),
1255 			},
1256 			.driver_data = "20090105",	/* F.30 */
1257 		},
1258 		{
1259 			.ident = "dv5",
1260 			.matches = {
1261 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1262 				DMI_MATCH(DMI_PRODUCT_NAME,
1263 					  "HP Pavilion dv5 Notebook PC"),
1264 			},
1265 			.driver_data = "20090506",	/* F.16 */
1266 		},
1267 		{
1268 			.ident = "dv6",
1269 			.matches = {
1270 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1271 				DMI_MATCH(DMI_PRODUCT_NAME,
1272 					  "HP Pavilion dv6 Notebook PC"),
1273 			},
1274 			.driver_data = "20090423",	/* F.21 */
1275 		},
1276 		{
1277 			.ident = "HDX18",
1278 			.matches = {
1279 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1280 				DMI_MATCH(DMI_PRODUCT_NAME,
1281 					  "HP HDX18 Notebook PC"),
1282 			},
1283 			.driver_data = "20090430",	/* F.23 */
1284 		},
1285 		/*
1286 		 * Acer eMachines G725 has the same problem.  BIOS
1287 		 * V1.03 is known to be broken.  V3.04 is known to
1288 		 * work.  Between, there are V1.06, V2.06 and V3.03
1289 		 * that we don't have much idea about.  For now,
1290 		 * blacklist anything older than V3.04.
1291 		 *
1292 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1293 		 */
1294 		{
1295 			.ident = "G725",
1296 			.matches = {
1297 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1298 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1299 			},
1300 			.driver_data = "20091216",	/* V3.04 */
1301 		},
1302 		{ }	/* terminate list */
1303 	};
1304 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1305 	int year, month, date;
1306 	char buf[9];
1307 
1308 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1309 		return false;
1310 
1311 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1312 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1313 
1314 	return strcmp(buf, dmi->driver_data) < 0;
1315 }
1316 
1317 static bool ahci_broken_lpm(struct pci_dev *pdev)
1318 {
1319 	static const struct dmi_system_id sysids[] = {
1320 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1321 		{
1322 			.matches = {
1323 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1324 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1325 			},
1326 			.driver_data = "20180406", /* 1.31 */
1327 		},
1328 		{
1329 			.matches = {
1330 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1331 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1332 			},
1333 			.driver_data = "20180420", /* 1.28 */
1334 		},
1335 		{
1336 			.matches = {
1337 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1338 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1339 			},
1340 			.driver_data = "20180315", /* 1.33 */
1341 		},
1342 		{
1343 			.matches = {
1344 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1345 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1346 			},
1347 			/*
1348 			 * Note date based on release notes, 2.35 has been
1349 			 * reported to be good, but I've been unable to get
1350 			 * a hold of the reporter to get the DMI BIOS date.
1351 			 * TODO: fix this.
1352 			 */
1353 			.driver_data = "20180310", /* 2.35 */
1354 		},
1355 		{ }	/* terminate list */
1356 	};
1357 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1358 	int year, month, date;
1359 	char buf[9];
1360 
1361 	if (!dmi)
1362 		return false;
1363 
1364 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1365 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1366 
1367 	return strcmp(buf, dmi->driver_data) < 0;
1368 }
1369 
1370 static bool ahci_broken_online(struct pci_dev *pdev)
1371 {
1372 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1373 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1374 	static const struct dmi_system_id sysids[] = {
1375 		/*
1376 		 * There are several gigabyte boards which use
1377 		 * SIMG5723s configured as hardware RAID.  Certain
1378 		 * 5723 firmware revisions shipped there keep the link
1379 		 * online but fail to answer properly to SRST or
1380 		 * IDENTIFY when no device is attached downstream
1381 		 * causing libata to retry quite a few times leading
1382 		 * to excessive detection delay.
1383 		 *
1384 		 * As these firmwares respond to the second reset try
1385 		 * with invalid device signature, considering unknown
1386 		 * sig as offline works around the problem acceptably.
1387 		 */
1388 		{
1389 			.ident = "EP45-DQ6",
1390 			.matches = {
1391 				DMI_MATCH(DMI_BOARD_VENDOR,
1392 					  "Gigabyte Technology Co., Ltd."),
1393 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1394 			},
1395 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1396 		},
1397 		{
1398 			.ident = "EP45-DS5",
1399 			.matches = {
1400 				DMI_MATCH(DMI_BOARD_VENDOR,
1401 					  "Gigabyte Technology Co., Ltd."),
1402 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1403 			},
1404 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1405 		},
1406 		{ }	/* terminate list */
1407 	};
1408 #undef ENCODE_BUSDEVFN
1409 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1410 	unsigned int val;
1411 
1412 	if (!dmi)
1413 		return false;
1414 
1415 	val = (unsigned long)dmi->driver_data;
1416 
1417 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1418 }
1419 
1420 static bool ahci_broken_devslp(struct pci_dev *pdev)
1421 {
1422 	/* device with broken DEVSLP but still showing SDS capability */
1423 	static const struct pci_device_id ids[] = {
1424 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1425 		{}
1426 	};
1427 
1428 	return pci_match_id(ids, pdev);
1429 }
1430 
1431 #ifdef CONFIG_ATA_ACPI
1432 static void ahci_gtf_filter_workaround(struct ata_host *host)
1433 {
1434 	static const struct dmi_system_id sysids[] = {
1435 		/*
1436 		 * Aspire 3810T issues a bunch of SATA enable commands
1437 		 * via _GTF including an invalid one and one which is
1438 		 * rejected by the device.  Among the successful ones
1439 		 * is FPDMA non-zero offset enable which when enabled
1440 		 * only on the drive side leads to NCQ command
1441 		 * failures.  Filter it out.
1442 		 */
1443 		{
1444 			.ident = "Aspire 3810T",
1445 			.matches = {
1446 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1447 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1448 			},
1449 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1450 		},
1451 		{ }
1452 	};
1453 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1454 	unsigned int filter;
1455 	int i;
1456 
1457 	if (!dmi)
1458 		return;
1459 
1460 	filter = (unsigned long)dmi->driver_data;
1461 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1462 		 filter, dmi->ident);
1463 
1464 	for (i = 0; i < host->n_ports; i++) {
1465 		struct ata_port *ap = host->ports[i];
1466 		struct ata_link *link;
1467 		struct ata_device *dev;
1468 
1469 		ata_for_each_link(link, ap, EDGE)
1470 			ata_for_each_dev(dev, link, ALL)
1471 				dev->gtf_filter |= filter;
1472 	}
1473 }
1474 #else
1475 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1476 {}
1477 #endif
1478 
1479 /*
1480  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1481  * as DUMMY, or detected but eventually get a "link down" and never get up
1482  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1483  * port_map may hold a value of 0x00.
1484  *
1485  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1486  * and can significantly reduce the occurrence of the problem.
1487  *
1488  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1489  */
1490 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1491 				    struct pci_dev *pdev)
1492 {
1493 	static const struct dmi_system_id sysids[] = {
1494 		{
1495 			.ident = "Acer Switch Alpha 12",
1496 			.matches = {
1497 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1498 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1499 			},
1500 		},
1501 		{ }
1502 	};
1503 
1504 	if (dmi_check_system(sysids)) {
1505 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1506 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1507 			hpriv->port_map = 0x7;
1508 			hpriv->cap = 0xC734FF02;
1509 		}
1510 	}
1511 }
1512 
1513 #ifdef CONFIG_ARM64
1514 /*
1515  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1516  * Workaround is to make sure all pending IRQs are served before leaving
1517  * handler.
1518  */
1519 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1520 {
1521 	struct ata_host *host = dev_instance;
1522 	struct ahci_host_priv *hpriv;
1523 	unsigned int rc = 0;
1524 	void __iomem *mmio;
1525 	u32 irq_stat, irq_masked;
1526 	unsigned int handled = 1;
1527 
1528 	hpriv = host->private_data;
1529 	mmio = hpriv->mmio;
1530 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1531 	if (!irq_stat)
1532 		return IRQ_NONE;
1533 
1534 	do {
1535 		irq_masked = irq_stat & hpriv->port_map;
1536 		spin_lock(&host->lock);
1537 		rc = ahci_handle_port_intr(host, irq_masked);
1538 		if (!rc)
1539 			handled = 0;
1540 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1541 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1542 		spin_unlock(&host->lock);
1543 	} while (irq_stat);
1544 
1545 	return IRQ_RETVAL(handled);
1546 }
1547 #endif
1548 
1549 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1550 		struct ahci_host_priv *hpriv)
1551 {
1552 	int i;
1553 	u32 cap;
1554 
1555 	/*
1556 	 * Check if this device might have remapped nvme devices.
1557 	 */
1558 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1559 	    pci_resource_len(pdev, bar) < SZ_512K ||
1560 	    bar != AHCI_PCI_BAR_STANDARD ||
1561 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1562 		return;
1563 
1564 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1565 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1566 		if ((cap & (1 << i)) == 0)
1567 			continue;
1568 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1569 				!= PCI_CLASS_STORAGE_EXPRESS)
1570 			continue;
1571 
1572 		/* We've found a remapped device */
1573 		hpriv->remapped_nvme++;
1574 	}
1575 
1576 	if (!hpriv->remapped_nvme)
1577 		return;
1578 
1579 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1580 		 hpriv->remapped_nvme);
1581 	dev_warn(&pdev->dev,
1582 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1583 
1584 	/*
1585 	 * Don't rely on the msi-x capability in the remap case,
1586 	 * share the legacy interrupt across ahci and remapped devices.
1587 	 */
1588 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1589 }
1590 
1591 static int ahci_get_irq_vector(struct ata_host *host, int port)
1592 {
1593 	return pci_irq_vector(to_pci_dev(host->dev), port);
1594 }
1595 
1596 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1597 			struct ahci_host_priv *hpriv)
1598 {
1599 	int nvec;
1600 
1601 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1602 		return -ENODEV;
1603 
1604 	/*
1605 	 * If number of MSIs is less than number of ports then Sharing Last
1606 	 * Message mode could be enforced. In this case assume that advantage
1607 	 * of multipe MSIs is negated and use single MSI mode instead.
1608 	 */
1609 	if (n_ports > 1) {
1610 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1611 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1612 		if (nvec > 0) {
1613 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1614 				hpriv->get_irq_vector = ahci_get_irq_vector;
1615 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1616 				return nvec;
1617 			}
1618 
1619 			/*
1620 			 * Fallback to single MSI mode if the controller
1621 			 * enforced MRSM mode.
1622 			 */
1623 			printk(KERN_INFO
1624 				"ahci: MRSM is on, fallback to single MSI\n");
1625 			pci_free_irq_vectors(pdev);
1626 		}
1627 	}
1628 
1629 	/*
1630 	 * If the host is not capable of supporting per-port vectors, fall
1631 	 * back to single MSI before finally attempting single MSI-X.
1632 	 */
1633 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1634 	if (nvec == 1)
1635 		return nvec;
1636 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1637 }
1638 
1639 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1640 					   struct ahci_host_priv *hpriv)
1641 {
1642 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1643 
1644 
1645 	/* Ignore processing for chipsets that don't use policy */
1646 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1647 		return;
1648 
1649 	/* user modified policy via module param */
1650 	if (mobile_lpm_policy != -1) {
1651 		policy = mobile_lpm_policy;
1652 		goto update_policy;
1653 	}
1654 
1655 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1656 		if (hpriv->cap & HOST_CAP_PART)
1657 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1658 		else if (hpriv->cap & HOST_CAP_SSC)
1659 			policy = ATA_LPM_MIN_POWER;
1660 	}
1661 
1662 update_policy:
1663 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1664 		ap->target_lpm_policy = policy;
1665 }
1666 
1667 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1668 {
1669 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1670 	u16 tmp16;
1671 
1672 	/*
1673 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1674 	 */
1675 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1676 		return;
1677 
1678 	/* Skip applying the quirk on Denverton and beyond */
1679 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1680 		return;
1681 
1682 	/*
1683 	 * port_map is determined from PORTS_IMPL PCI register which is
1684 	 * implemented as write or write-once register.  If the register
1685 	 * isn't programmed, ahci automatically generates it from number
1686 	 * of ports, which is good enough for PCS programming. It is
1687 	 * otherwise expected that platform firmware enables the ports
1688 	 * before the OS boots.
1689 	 */
1690 	pci_read_config_word(pdev, PCS_6, &tmp16);
1691 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1692 		tmp16 |= hpriv->port_map;
1693 		pci_write_config_word(pdev, PCS_6, tmp16);
1694 	}
1695 }
1696 
1697 static ssize_t remapped_nvme_show(struct device *dev,
1698 				  struct device_attribute *attr,
1699 				  char *buf)
1700 {
1701 	struct ata_host *host = dev_get_drvdata(dev);
1702 	struct ahci_host_priv *hpriv = host->private_data;
1703 
1704 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1705 }
1706 
1707 static DEVICE_ATTR_RO(remapped_nvme);
1708 
1709 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1710 {
1711 	unsigned int board_id = ent->driver_data;
1712 	struct ata_port_info pi = ahci_port_info[board_id];
1713 	const struct ata_port_info *ppi[] = { &pi, NULL };
1714 	struct device *dev = &pdev->dev;
1715 	struct ahci_host_priv *hpriv;
1716 	struct ata_host *host;
1717 	int n_ports, i, rc;
1718 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1719 
1720 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1721 
1722 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1723 
1724 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1725 	   can drive them all so if both drivers are selected make sure
1726 	   AHCI stays out of the way */
1727 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1728 		return -ENODEV;
1729 
1730 	/* Apple BIOS on MCP89 prevents us using AHCI */
1731 	if (is_mcp89_apple(pdev))
1732 		ahci_mcp89_apple_enable(pdev);
1733 
1734 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1735 	 * At the moment, we can only use the AHCI mode. Let the users know
1736 	 * that for SAS drives they're out of luck.
1737 	 */
1738 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1739 		dev_info(&pdev->dev,
1740 			 "PDC42819 can only drive SATA devices with this driver\n");
1741 
1742 	/* Some devices use non-standard BARs */
1743 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1744 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1745 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1746 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1747 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1748 		if (pdev->device == 0xa01c)
1749 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1750 		if (pdev->device == 0xa084)
1751 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1752 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1753 		if (pdev->device == 0x7a08)
1754 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1755 	}
1756 
1757 	/* acquire resources */
1758 	rc = pcim_enable_device(pdev);
1759 	if (rc)
1760 		return rc;
1761 
1762 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1763 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1764 		u8 map;
1765 
1766 		/* ICH6s share the same PCI ID for both piix and ahci
1767 		 * modes.  Enabling ahci mode while MAP indicates
1768 		 * combined mode is a bad idea.  Yield to ata_piix.
1769 		 */
1770 		pci_read_config_byte(pdev, ICH_MAP, &map);
1771 		if (map & 0x3) {
1772 			dev_info(&pdev->dev,
1773 				 "controller is in combined mode, can't enable AHCI mode\n");
1774 			return -ENODEV;
1775 		}
1776 	}
1777 
1778 	/* AHCI controllers often implement SFF compatible interface.
1779 	 * Grab all PCI BARs just in case.
1780 	 */
1781 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1782 	if (rc == -EBUSY)
1783 		pcim_pin_device(pdev);
1784 	if (rc)
1785 		return rc;
1786 
1787 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1788 	if (!hpriv)
1789 		return -ENOMEM;
1790 	hpriv->flags |= (unsigned long)pi.private_data;
1791 
1792 	/* MCP65 revision A1 and A2 can't do MSI */
1793 	if (board_id == board_ahci_mcp65 &&
1794 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1795 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1796 
1797 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1798 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1799 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1800 
1801 	/* only some SB600s can do 64bit DMA */
1802 	if (ahci_sb600_enable_64bit(pdev))
1803 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1804 
1805 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1806 
1807 	/* detect remapped nvme devices */
1808 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1809 
1810 	sysfs_add_file_to_group(&pdev->dev.kobj,
1811 				&dev_attr_remapped_nvme.attr,
1812 				NULL);
1813 
1814 	/* must set flag prior to save config in order to take effect */
1815 	if (ahci_broken_devslp(pdev))
1816 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1817 
1818 #ifdef CONFIG_ARM64
1819 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1820 	    pdev->device == 0xa235 &&
1821 	    pdev->revision < 0x30)
1822 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1823 
1824 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1825 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1826 #endif
1827 
1828 	/* save initial config */
1829 	ahci_pci_save_initial_config(pdev, hpriv);
1830 
1831 	/* prepare host */
1832 	if (hpriv->cap & HOST_CAP_NCQ) {
1833 		pi.flags |= ATA_FLAG_NCQ;
1834 		/*
1835 		 * Auto-activate optimization is supposed to be
1836 		 * supported on all AHCI controllers indicating NCQ
1837 		 * capability, but it seems to be broken on some
1838 		 * chipsets including NVIDIAs.
1839 		 */
1840 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1841 			pi.flags |= ATA_FLAG_FPDMA_AA;
1842 
1843 		/*
1844 		 * All AHCI controllers should be forward-compatible
1845 		 * with the new auxiliary field. This code should be
1846 		 * conditionalized if any buggy AHCI controllers are
1847 		 * encountered.
1848 		 */
1849 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1850 	}
1851 
1852 	if (hpriv->cap & HOST_CAP_PMP)
1853 		pi.flags |= ATA_FLAG_PMP;
1854 
1855 	ahci_set_em_messages(hpriv, &pi);
1856 
1857 	if (ahci_broken_system_poweroff(pdev)) {
1858 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1859 		dev_info(&pdev->dev,
1860 			"quirky BIOS, skipping spindown on poweroff\n");
1861 	}
1862 
1863 	if (ahci_broken_lpm(pdev)) {
1864 		pi.flags |= ATA_FLAG_NO_LPM;
1865 		dev_warn(&pdev->dev,
1866 			 "BIOS update required for Link Power Management support\n");
1867 	}
1868 
1869 	if (ahci_broken_suspend(pdev)) {
1870 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1871 		dev_warn(&pdev->dev,
1872 			 "BIOS update required for suspend/resume\n");
1873 	}
1874 
1875 	if (ahci_broken_online(pdev)) {
1876 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1877 		dev_info(&pdev->dev,
1878 			 "online status unreliable, applying workaround\n");
1879 	}
1880 
1881 
1882 	/* Acer SA5-271 workaround modifies private_data */
1883 	acer_sa5_271_workaround(hpriv, pdev);
1884 
1885 	/* CAP.NP sometimes indicate the index of the last enabled
1886 	 * port, at other times, that of the last possible port, so
1887 	 * determining the maximum port number requires looking at
1888 	 * both CAP.NP and port_map.
1889 	 */
1890 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1891 
1892 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1893 	if (!host)
1894 		return -ENOMEM;
1895 	host->private_data = hpriv;
1896 
1897 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1898 		/* legacy intx interrupts */
1899 		pci_intx(pdev, 1);
1900 	}
1901 	hpriv->irq = pci_irq_vector(pdev, 0);
1902 
1903 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1904 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1905 	else
1906 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1907 
1908 	if (!(hpriv->cap & HOST_CAP_PART))
1909 		host->flags |= ATA_HOST_NO_PART;
1910 
1911 	if (!(hpriv->cap & HOST_CAP_SSC))
1912 		host->flags |= ATA_HOST_NO_SSC;
1913 
1914 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
1915 		host->flags |= ATA_HOST_NO_DEVSLP;
1916 
1917 	if (pi.flags & ATA_FLAG_EM)
1918 		ahci_reset_em(host);
1919 
1920 	for (i = 0; i < host->n_ports; i++) {
1921 		struct ata_port *ap = host->ports[i];
1922 
1923 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1924 		ata_port_pbar_desc(ap, ahci_pci_bar,
1925 				   0x100 + ap->port_no * 0x80, "port");
1926 
1927 		/* set enclosure management message type */
1928 		if (ap->flags & ATA_FLAG_EM)
1929 			ap->em_message_type = hpriv->em_msg_type;
1930 
1931 		ahci_update_initial_lpm_policy(ap, hpriv);
1932 
1933 		/* disabled/not-implemented port */
1934 		if (!(hpriv->port_map & (1 << i)))
1935 			ap->ops = &ata_dummy_port_ops;
1936 	}
1937 
1938 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1939 	ahci_p5wdh_workaround(host);
1940 
1941 	/* apply gtf filter quirk */
1942 	ahci_gtf_filter_workaround(host);
1943 
1944 	/* initialize adapter */
1945 	rc = ahci_configure_dma_masks(pdev, hpriv);
1946 	if (rc)
1947 		return rc;
1948 
1949 	rc = ahci_pci_reset_controller(host);
1950 	if (rc)
1951 		return rc;
1952 
1953 	ahci_pci_init_controller(host);
1954 	ahci_pci_print_info(host);
1955 
1956 	pci_set_master(pdev);
1957 
1958 	rc = ahci_host_activate(host, &ahci_sht);
1959 	if (rc)
1960 		return rc;
1961 
1962 	pm_runtime_put_noidle(&pdev->dev);
1963 	return 0;
1964 }
1965 
1966 static void ahci_shutdown_one(struct pci_dev *pdev)
1967 {
1968 	ata_pci_shutdown_one(pdev);
1969 }
1970 
1971 static void ahci_remove_one(struct pci_dev *pdev)
1972 {
1973 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1974 				     &dev_attr_remapped_nvme.attr,
1975 				     NULL);
1976 	pm_runtime_get_noresume(&pdev->dev);
1977 	ata_pci_remove_one(pdev);
1978 }
1979 
1980 module_pci_driver(ahci_pci_driver);
1981 
1982 MODULE_AUTHOR("Jeff Garzik");
1983 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1984 MODULE_LICENSE("GPL");
1985 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1986 MODULE_VERSION(DRV_VERSION);
1987