xref: /openbmc/linux/drivers/ata/ahci.c (revision 2455f0e1)
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_ign_iferr,
52 	board_ahci_low_power,
53 	board_ahci_no_debounce_delay,
54 	board_ahci_nomsi,
55 	board_ahci_noncq,
56 	board_ahci_nosntf,
57 	board_ahci_yes_fbs,
58 
59 	/* board IDs for specific chipsets in alphabetical order */
60 	board_ahci_al,
61 	board_ahci_avn,
62 	board_ahci_mcp65,
63 	board_ahci_mcp77,
64 	board_ahci_mcp89,
65 	board_ahci_mv,
66 	board_ahci_sb600,
67 	board_ahci_sb700,	/* for SB700 and SB800 */
68 	board_ahci_vt8251,
69 
70 	/*
71 	 * board IDs for Intel chipsets that support more than 6 ports
72 	 * *and* end up needing the PCS quirk.
73 	 */
74 	board_ahci_pcs7,
75 
76 	/* aliases */
77 	board_ahci_mcp_linux	= board_ahci_mcp65,
78 	board_ahci_mcp67	= board_ahci_mcp65,
79 	board_ahci_mcp73	= board_ahci_mcp65,
80 	board_ahci_mcp79	= board_ahci_mcp77,
81 };
82 
83 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
84 static void ahci_remove_one(struct pci_dev *dev);
85 static void ahci_shutdown_one(struct pci_dev *dev);
86 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv);
87 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
88 				 unsigned long deadline);
89 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
90 			      unsigned long deadline);
91 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
92 static bool is_mcp89_apple(struct pci_dev *pdev);
93 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
94 				unsigned long deadline);
95 #ifdef CONFIG_PM
96 static int ahci_pci_device_runtime_suspend(struct device *dev);
97 static int ahci_pci_device_runtime_resume(struct device *dev);
98 #ifdef CONFIG_PM_SLEEP
99 static int ahci_pci_device_suspend(struct device *dev);
100 static int ahci_pci_device_resume(struct device *dev);
101 #endif
102 #endif /* CONFIG_PM */
103 
104 static struct scsi_host_template ahci_sht = {
105 	AHCI_SHT("ahci"),
106 };
107 
108 static struct ata_port_operations ahci_vt8251_ops = {
109 	.inherits		= &ahci_ops,
110 	.hardreset		= ahci_vt8251_hardreset,
111 };
112 
113 static struct ata_port_operations ahci_p5wdh_ops = {
114 	.inherits		= &ahci_ops,
115 	.hardreset		= ahci_p5wdh_hardreset,
116 };
117 
118 static struct ata_port_operations ahci_avn_ops = {
119 	.inherits		= &ahci_ops,
120 	.hardreset		= ahci_avn_hardreset,
121 };
122 
123 static const struct ata_port_info ahci_port_info[] = {
124 	/* by features */
125 	[board_ahci] = {
126 		.flags		= AHCI_FLAG_COMMON,
127 		.pio_mask	= ATA_PIO4,
128 		.udma_mask	= ATA_UDMA6,
129 		.port_ops	= &ahci_ops,
130 	},
131 	[board_ahci_ign_iferr] = {
132 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
133 		.flags		= AHCI_FLAG_COMMON,
134 		.pio_mask	= ATA_PIO4,
135 		.udma_mask	= ATA_UDMA6,
136 		.port_ops	= &ahci_ops,
137 	},
138 	[board_ahci_low_power] = {
139 		AHCI_HFLAGS	(AHCI_HFLAG_USE_LPM_POLICY),
140 		.flags		= AHCI_FLAG_COMMON,
141 		.pio_mask	= ATA_PIO4,
142 		.udma_mask	= ATA_UDMA6,
143 		.port_ops	= &ahci_ops,
144 	},
145 	[board_ahci_no_debounce_delay] = {
146 		.flags		= AHCI_FLAG_COMMON,
147 		.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
148 		.pio_mask	= ATA_PIO4,
149 		.udma_mask	= ATA_UDMA6,
150 		.port_ops	= &ahci_ops,
151 	},
152 	[board_ahci_nomsi] = {
153 		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
154 		.flags		= AHCI_FLAG_COMMON,
155 		.pio_mask	= ATA_PIO4,
156 		.udma_mask	= ATA_UDMA6,
157 		.port_ops	= &ahci_ops,
158 	},
159 	[board_ahci_noncq] = {
160 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
161 		.flags		= AHCI_FLAG_COMMON,
162 		.pio_mask	= ATA_PIO4,
163 		.udma_mask	= ATA_UDMA6,
164 		.port_ops	= &ahci_ops,
165 	},
166 	[board_ahci_nosntf] = {
167 		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
168 		.flags		= AHCI_FLAG_COMMON,
169 		.pio_mask	= ATA_PIO4,
170 		.udma_mask	= ATA_UDMA6,
171 		.port_ops	= &ahci_ops,
172 	},
173 	[board_ahci_yes_fbs] = {
174 		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
175 		.flags		= AHCI_FLAG_COMMON,
176 		.pio_mask	= ATA_PIO4,
177 		.udma_mask	= ATA_UDMA6,
178 		.port_ops	= &ahci_ops,
179 	},
180 	/* by chipsets */
181 	[board_ahci_al] = {
182 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
183 		.flags		= AHCI_FLAG_COMMON,
184 		.pio_mask	= ATA_PIO4,
185 		.udma_mask	= ATA_UDMA6,
186 		.port_ops	= &ahci_ops,
187 	},
188 	[board_ahci_avn] = {
189 		.flags		= AHCI_FLAG_COMMON,
190 		.pio_mask	= ATA_PIO4,
191 		.udma_mask	= ATA_UDMA6,
192 		.port_ops	= &ahci_avn_ops,
193 	},
194 	[board_ahci_mcp65] = {
195 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
196 				 AHCI_HFLAG_YES_NCQ),
197 		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
198 		.pio_mask	= ATA_PIO4,
199 		.udma_mask	= ATA_UDMA6,
200 		.port_ops	= &ahci_ops,
201 	},
202 	[board_ahci_mcp77] = {
203 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
204 		.flags		= AHCI_FLAG_COMMON,
205 		.pio_mask	= ATA_PIO4,
206 		.udma_mask	= ATA_UDMA6,
207 		.port_ops	= &ahci_ops,
208 	},
209 	[board_ahci_mcp89] = {
210 		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
211 		.flags		= AHCI_FLAG_COMMON,
212 		.pio_mask	= ATA_PIO4,
213 		.udma_mask	= ATA_UDMA6,
214 		.port_ops	= &ahci_ops,
215 	},
216 	[board_ahci_mv] = {
217 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
218 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
219 		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
220 		.pio_mask	= ATA_PIO4,
221 		.udma_mask	= ATA_UDMA6,
222 		.port_ops	= &ahci_ops,
223 	},
224 	[board_ahci_sb600] = {
225 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
226 				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
227 				 AHCI_HFLAG_32BIT_ONLY),
228 		.flags		= AHCI_FLAG_COMMON,
229 		.pio_mask	= ATA_PIO4,
230 		.udma_mask	= ATA_UDMA6,
231 		.port_ops	= &ahci_pmp_retry_srst_ops,
232 	},
233 	[board_ahci_sb700] = {	/* for SB700 and SB800 */
234 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
235 		.flags		= AHCI_FLAG_COMMON,
236 		.pio_mask	= ATA_PIO4,
237 		.udma_mask	= ATA_UDMA6,
238 		.port_ops	= &ahci_pmp_retry_srst_ops,
239 	},
240 	[board_ahci_vt8251] = {
241 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
242 		.flags		= AHCI_FLAG_COMMON,
243 		.pio_mask	= ATA_PIO4,
244 		.udma_mask	= ATA_UDMA6,
245 		.port_ops	= &ahci_vt8251_ops,
246 	},
247 	[board_ahci_pcs7] = {
248 		.flags		= AHCI_FLAG_COMMON,
249 		.pio_mask	= ATA_PIO4,
250 		.udma_mask	= ATA_UDMA6,
251 		.port_ops	= &ahci_ops,
252 	},
253 };
254 
255 static const struct pci_device_id ahci_pci_tbl[] = {
256 	/* Intel */
257 	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
258 	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
259 	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
260 	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
261 	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
262 	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
263 	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
264 	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
265 	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
266 	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
267 	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
268 	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
269 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8/Lewisburg RAID*/
270 	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
271 	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
272 	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
273 	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
274 	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
275 	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
276 	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
277 	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
278 	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_low_power }, /* ICH9M */
279 	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_low_power }, /* ICH9M */
280 	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_low_power }, /* ICH9M */
281 	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_low_power }, /* ICH9M */
282 	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_low_power }, /* ICH9M */
283 	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
284 	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_low_power }, /* ICH9M */
285 	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
286 	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
287 	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
288 	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
289 	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
290 	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
291 	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
292 	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
293 	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
294 	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_low_power }, /* PCH M AHCI */
295 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
296 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_low_power }, /* PCH M RAID */
297 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
298 	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
299 	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
300 	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
301 	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
302 	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
303 	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
304 	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
305 	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
306 	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
307 	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
308 	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
309 	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
310 	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
311 	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
312 	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
313 	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
314 	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
315 	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
316 	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
317 	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
318 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
319 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_low_power }, /* CPT M AHCI */
320 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
321 	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_low_power }, /* CPT M RAID */
322 	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
323 	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
324 	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
325 	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
326 	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
327 	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
328 	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
329 	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_low_power }, /* Panther M AHCI */
330 	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
331 	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
332 	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
333 	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_low_power }, /* Panther M RAID */
334 	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
335 	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
336 	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_low_power }, /* Lynx M AHCI */
337 	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
338 	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_low_power }, /* Lynx M RAID */
339 	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
340 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_low_power }, /* Lynx M RAID */
341 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
342 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_low_power }, /* Lynx M RAID */
343 	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_low_power }, /* Lynx LP AHCI */
344 	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_low_power }, /* Lynx LP AHCI */
345 	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_low_power }, /* Lynx LP RAID */
346 	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_low_power }, /* Lynx LP RAID */
347 	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_low_power }, /* Lynx LP RAID */
348 	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_low_power }, /* Lynx LP RAID */
349 	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_low_power }, /* Lynx LP RAID */
350 	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_low_power }, /* Lynx LP RAID */
351 	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_low_power }, /* Cannon Lake PCH-LP AHCI */
352 	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
353 	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
354 	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
355 	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
356 	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
357 	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
358 	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
359 	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
360 	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
361 	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
362 	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
363 	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
364 	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
365 	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
366 	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
367 	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
368 	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
369 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* *burg SATA0 'RAID' */
370 	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* *burg SATA1 'RAID' */
371 	{ PCI_VDEVICE(INTEL, 0x282f), board_ahci }, /* *burg SATA2 'RAID' */
372 	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
373 	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
374 	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
375 	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
376 	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
377 	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
378 	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
379 	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
380 	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
381 	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
382 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
383 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
384 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
385 	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_low_power }, /* Wildcat LP AHCI */
386 	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_low_power }, /* Wildcat LP RAID */
387 	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_low_power }, /* Wildcat LP RAID */
388 	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_low_power }, /* Wildcat LP RAID */
389 	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
390 	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_low_power }, /* 9 Series M AHCI */
391 	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
392 	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_low_power }, /* 9 Series M RAID */
393 	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
394 	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_low_power }, /* 9 Series M RAID */
395 	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
396 	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_low_power }, /* 9 Series M RAID */
397 	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_low_power }, /* Sunrise LP AHCI */
398 	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_low_power }, /* Sunrise LP RAID */
399 	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_low_power }, /* Sunrise LP RAID */
400 	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
401 	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_low_power }, /* Sunrise M AHCI */
402 	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
403 	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
404 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_low_power }, /* Sunrise M RAID */
405 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
406 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
407 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
408 	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
409 	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
410 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
411 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
412 	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
413 	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
414 	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
415 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
416 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
417 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_low_power }, /* Bay Trail AHCI */
418 	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_low_power }, /* Bay Trail AHCI */
419 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_low_power }, /* Cherry Tr. AHCI */
420 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_low_power }, /* ApolloLake AHCI */
421 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_low_power }, /* Ice Lake LP AHCI */
422 	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_low_power }, /* Comet Lake PCH-U AHCI */
423 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* Comet Lake PCH RAID */
424 
425 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
426 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
427 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
428 	/* JMicron 362B and 362C have an AHCI function with IDE class code */
429 	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
430 	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
431 	/* May need to update quirk_jmicron_async_suspend() for additions */
432 
433 	/* ATI */
434 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
435 	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
436 	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
437 	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
438 	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
439 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
440 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
441 
442 	/* Amazon's Annapurna Labs support */
443 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
444 		.class = PCI_CLASS_STORAGE_SATA_AHCI,
445 		.class_mask = 0xffffff,
446 		board_ahci_al },
447 	/* AMD */
448 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
449 	{ PCI_VDEVICE(AMD, 0x7801), board_ahci_no_debounce_delay }, /* AMD Hudson-2 (AHCI mode) */
450 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
451 	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_low_power }, /* AMD Green Sardine */
452 	/* AMD is using RAID class only for ahci controllers */
453 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
454 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
455 
456 	/* Dell S140/S150 */
457 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
458 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
459 
460 	/* VIA */
461 	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
462 	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
463 
464 	/* NVIDIA */
465 	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
466 	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
467 	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
468 	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
469 	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
470 	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
471 	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
472 	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
473 	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
474 	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
475 	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
476 	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
477 	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
478 	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
479 	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
480 	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
481 	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
482 	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
483 	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
484 	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
485 	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
486 	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
487 	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
488 	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
489 	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
490 	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
491 	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
492 	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
493 	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
494 	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
495 	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
496 	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
497 	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
498 	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
499 	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
500 	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
501 	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
502 	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
503 	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
504 	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
505 	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
506 	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
507 	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
508 	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
509 	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
510 	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
511 	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
512 	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
513 	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
514 	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
515 	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
516 	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
517 	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
518 	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
519 	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
520 	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
521 	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
522 	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
523 	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
524 	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
525 	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
526 	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
527 	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
528 	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
529 	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
530 	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
531 	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
532 	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
533 	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
534 	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
535 	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
536 	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
537 	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
538 	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
539 	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
540 	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
541 	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
542 	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
543 	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
544 	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
545 	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
546 	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
547 	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
548 	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
549 
550 	/* SiS */
551 	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
552 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
553 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
554 
555 	/* ST Microelectronics */
556 	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
557 
558 	/* Marvell */
559 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
560 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
561 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
562 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
563 	  .class_mask = 0xffffff,
564 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
565 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
566 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
567 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
568 			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
569 	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
570 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
571 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
572 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
573 	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
574 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
575 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
576 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
577 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
578 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
579 	  .driver_data = board_ahci_yes_fbs },
580 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
581 	  .driver_data = board_ahci_yes_fbs },
582 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
583 	  .driver_data = board_ahci_yes_fbs },
584 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
585 	  .driver_data = board_ahci_yes_fbs },
586 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
587 	  .driver_data = board_ahci_no_debounce_delay },
588 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
589 	  .driver_data = board_ahci_yes_fbs },
590 	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
591 	  .driver_data = board_ahci_yes_fbs },
592 
593 	/* Promise */
594 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
595 	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
596 
597 	/* Asmedia */
598 	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
599 	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
600 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
601 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
602 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
603 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
604 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci },   /* ASM1062+JMB575 */
605 
606 	/*
607 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
608 	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
609 	 */
610 	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
611 	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
612 
613 	/* Enmotus */
614 	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
615 
616 	/* Loongson */
617 	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
618 
619 	/* Generic, PCI class code for AHCI */
620 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
621 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
622 
623 	{ }	/* terminate list */
624 };
625 
626 static const struct dev_pm_ops ahci_pci_pm_ops = {
627 	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
628 	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
629 			   ahci_pci_device_runtime_resume, NULL)
630 };
631 
632 static struct pci_driver ahci_pci_driver = {
633 	.name			= DRV_NAME,
634 	.id_table		= ahci_pci_tbl,
635 	.probe			= ahci_init_one,
636 	.remove			= ahci_remove_one,
637 	.shutdown		= ahci_shutdown_one,
638 	.driver = {
639 		.pm		= &ahci_pci_pm_ops,
640 	},
641 };
642 
643 #if IS_ENABLED(CONFIG_PATA_MARVELL)
644 static int marvell_enable;
645 #else
646 static int marvell_enable = 1;
647 #endif
648 module_param(marvell_enable, int, 0644);
649 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
650 
651 static int mobile_lpm_policy = -1;
652 module_param(mobile_lpm_policy, int, 0644);
653 MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
654 
655 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
656 					 struct ahci_host_priv *hpriv)
657 {
658 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
659 		dev_info(&pdev->dev, "JMB361 has only one port\n");
660 		hpriv->saved_port_map = 1;
661 	}
662 
663 	/*
664 	 * Temporary Marvell 6145 hack: PATA port presence
665 	 * is asserted through the standard AHCI port
666 	 * presence register, as bit 4 (counting from 0)
667 	 */
668 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
669 		if (pdev->device == 0x6121)
670 			hpriv->mask_port_map = 0x3;
671 		else
672 			hpriv->mask_port_map = 0xf;
673 		dev_info(&pdev->dev,
674 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
675 	}
676 
677 	ahci_save_initial_config(&pdev->dev, hpriv);
678 }
679 
680 static int ahci_pci_reset_controller(struct ata_host *host)
681 {
682 	struct pci_dev *pdev = to_pci_dev(host->dev);
683 	struct ahci_host_priv *hpriv = host->private_data;
684 	int rc;
685 
686 	rc = ahci_reset_controller(host);
687 	if (rc)
688 		return rc;
689 
690 	/*
691 	 * If platform firmware failed to enable ports, try to enable
692 	 * them here.
693 	 */
694 	ahci_intel_pcs_quirk(pdev, hpriv);
695 
696 	return 0;
697 }
698 
699 static void ahci_pci_init_controller(struct ata_host *host)
700 {
701 	struct ahci_host_priv *hpriv = host->private_data;
702 	struct pci_dev *pdev = to_pci_dev(host->dev);
703 	void __iomem *port_mmio;
704 	u32 tmp;
705 	int mv;
706 
707 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
708 		if (pdev->device == 0x6121)
709 			mv = 2;
710 		else
711 			mv = 4;
712 		port_mmio = __ahci_port_base(hpriv, mv);
713 
714 		writel(0, port_mmio + PORT_IRQ_MASK);
715 
716 		/* clear port IRQ */
717 		tmp = readl(port_mmio + PORT_IRQ_STAT);
718 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
719 		if (tmp)
720 			writel(tmp, port_mmio + PORT_IRQ_STAT);
721 	}
722 
723 	ahci_init_controller(host);
724 }
725 
726 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
727 				 unsigned long deadline)
728 {
729 	struct ata_port *ap = link->ap;
730 	struct ahci_host_priv *hpriv = ap->host->private_data;
731 	bool online;
732 	int rc;
733 
734 	hpriv->stop_engine(ap);
735 
736 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
737 				 deadline, &online, NULL);
738 
739 	hpriv->start_engine(ap);
740 
741 	/* vt8251 doesn't clear BSY on signature FIS reception,
742 	 * request follow-up softreset.
743 	 */
744 	return online ? -EAGAIN : rc;
745 }
746 
747 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
748 				unsigned long deadline)
749 {
750 	struct ata_port *ap = link->ap;
751 	struct ahci_port_priv *pp = ap->private_data;
752 	struct ahci_host_priv *hpriv = ap->host->private_data;
753 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
754 	struct ata_taskfile tf;
755 	bool online;
756 	int rc;
757 
758 	hpriv->stop_engine(ap);
759 
760 	/* clear D2H reception area to properly wait for D2H FIS */
761 	ata_tf_init(link->device, &tf);
762 	tf.status = ATA_BUSY;
763 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
764 
765 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
766 				 deadline, &online, NULL);
767 
768 	hpriv->start_engine(ap);
769 
770 	/* The pseudo configuration device on SIMG4726 attached to
771 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
772 	 * hardreset if no device is attached to the first downstream
773 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
774 	 * work around this, wait for !BSY only briefly.  If BSY isn't
775 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
776 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
777 	 *
778 	 * Wait for two seconds.  Devices attached to downstream port
779 	 * which can't process the following IDENTIFY after this will
780 	 * have to be reset again.  For most cases, this should
781 	 * suffice while making probing snappish enough.
782 	 */
783 	if (online) {
784 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
785 					  ahci_check_ready);
786 		if (rc)
787 			ahci_kick_engine(ap);
788 	}
789 	return rc;
790 }
791 
792 /*
793  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
794  *
795  * It has been observed with some SSDs that the timing of events in the
796  * link synchronization phase can leave the port in a state that can not
797  * be recovered by a SATA-hard-reset alone.  The failing signature is
798  * SStatus.DET stuck at 1 ("Device presence detected but Phy
799  * communication not established").  It was found that unloading and
800  * reloading the driver when this problem occurs allows the drive
801  * connection to be recovered (DET advanced to 0x3).  The critical
802  * component of reloading the driver is that the port state machines are
803  * reset by bouncing "port enable" in the AHCI PCS configuration
804  * register.  So, reproduce that effect by bouncing a port whenever we
805  * see DET==1 after a reset.
806  */
807 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
808 			      unsigned long deadline)
809 {
810 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
811 	struct ata_port *ap = link->ap;
812 	struct ahci_port_priv *pp = ap->private_data;
813 	struct ahci_host_priv *hpriv = ap->host->private_data;
814 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
815 	unsigned long tmo = deadline - jiffies;
816 	struct ata_taskfile tf;
817 	bool online;
818 	int rc, i;
819 
820 	hpriv->stop_engine(ap);
821 
822 	for (i = 0; i < 2; i++) {
823 		u16 val;
824 		u32 sstatus;
825 		int port = ap->port_no;
826 		struct ata_host *host = ap->host;
827 		struct pci_dev *pdev = to_pci_dev(host->dev);
828 
829 		/* clear D2H reception area to properly wait for D2H FIS */
830 		ata_tf_init(link->device, &tf);
831 		tf.status = ATA_BUSY;
832 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
833 
834 		rc = sata_link_hardreset(link, timing, deadline, &online,
835 				ahci_check_ready);
836 
837 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
838 				(sstatus & 0xf) != 1)
839 			break;
840 
841 		ata_link_info(link,  "avn bounce port%d\n", port);
842 
843 		pci_read_config_word(pdev, 0x92, &val);
844 		val &= ~(1 << port);
845 		pci_write_config_word(pdev, 0x92, val);
846 		ata_msleep(ap, 1000);
847 		val |= 1 << port;
848 		pci_write_config_word(pdev, 0x92, val);
849 		deadline += tmo;
850 	}
851 
852 	hpriv->start_engine(ap);
853 
854 	if (online)
855 		*class = ahci_dev_classify(ap);
856 
857 	return rc;
858 }
859 
860 
861 #ifdef CONFIG_PM
862 static void ahci_pci_disable_interrupts(struct ata_host *host)
863 {
864 	struct ahci_host_priv *hpriv = host->private_data;
865 	void __iomem *mmio = hpriv->mmio;
866 	u32 ctl;
867 
868 	/* AHCI spec rev1.1 section 8.3.3:
869 	 * Software must disable interrupts prior to requesting a
870 	 * transition of the HBA to D3 state.
871 	 */
872 	ctl = readl(mmio + HOST_CTL);
873 	ctl &= ~HOST_IRQ_EN;
874 	writel(ctl, mmio + HOST_CTL);
875 	readl(mmio + HOST_CTL); /* flush */
876 }
877 
878 static int ahci_pci_device_runtime_suspend(struct device *dev)
879 {
880 	struct pci_dev *pdev = to_pci_dev(dev);
881 	struct ata_host *host = pci_get_drvdata(pdev);
882 
883 	ahci_pci_disable_interrupts(host);
884 	return 0;
885 }
886 
887 static int ahci_pci_device_runtime_resume(struct device *dev)
888 {
889 	struct pci_dev *pdev = to_pci_dev(dev);
890 	struct ata_host *host = pci_get_drvdata(pdev);
891 	int rc;
892 
893 	rc = ahci_pci_reset_controller(host);
894 	if (rc)
895 		return rc;
896 	ahci_pci_init_controller(host);
897 	return 0;
898 }
899 
900 #ifdef CONFIG_PM_SLEEP
901 static int ahci_pci_device_suspend(struct device *dev)
902 {
903 	struct pci_dev *pdev = to_pci_dev(dev);
904 	struct ata_host *host = pci_get_drvdata(pdev);
905 	struct ahci_host_priv *hpriv = host->private_data;
906 
907 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
908 		dev_err(&pdev->dev,
909 			"BIOS update required for suspend/resume\n");
910 		return -EIO;
911 	}
912 
913 	ahci_pci_disable_interrupts(host);
914 	ata_host_suspend(host, PMSG_SUSPEND);
915 	return 0;
916 }
917 
918 static int ahci_pci_device_resume(struct device *dev)
919 {
920 	struct pci_dev *pdev = to_pci_dev(dev);
921 	struct ata_host *host = pci_get_drvdata(pdev);
922 	int rc;
923 
924 	/* Apple BIOS helpfully mangles the registers on resume */
925 	if (is_mcp89_apple(pdev))
926 		ahci_mcp89_apple_enable(pdev);
927 
928 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
929 		rc = ahci_pci_reset_controller(host);
930 		if (rc)
931 			return rc;
932 
933 		ahci_pci_init_controller(host);
934 	}
935 
936 	ata_host_resume(host);
937 
938 	return 0;
939 }
940 #endif
941 
942 #endif /* CONFIG_PM */
943 
944 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
945 {
946 	const int dma_bits = using_dac ? 64 : 32;
947 	int rc;
948 
949 	/*
950 	 * If the device fixup already set the dma_mask to some non-standard
951 	 * value, don't extend it here. This happens on STA2X11, for example.
952 	 *
953 	 * XXX: manipulating the DMA mask from platform code is completely
954 	 * bogus, platform code should use dev->bus_dma_limit instead..
955 	 */
956 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
957 		return 0;
958 
959 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
960 	if (rc)
961 		dev_err(&pdev->dev, "DMA enable failed\n");
962 	return rc;
963 }
964 
965 static void ahci_pci_print_info(struct ata_host *host)
966 {
967 	struct pci_dev *pdev = to_pci_dev(host->dev);
968 	u16 cc;
969 	const char *scc_s;
970 
971 	pci_read_config_word(pdev, 0x0a, &cc);
972 	if (cc == PCI_CLASS_STORAGE_IDE)
973 		scc_s = "IDE";
974 	else if (cc == PCI_CLASS_STORAGE_SATA)
975 		scc_s = "SATA";
976 	else if (cc == PCI_CLASS_STORAGE_RAID)
977 		scc_s = "RAID";
978 	else
979 		scc_s = "unknown";
980 
981 	ahci_print_info(host, scc_s);
982 }
983 
984 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
985  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
986  * support PMP and the 4726 either directly exports the device
987  * attached to the first downstream port or acts as a hardware storage
988  * controller and emulate a single ATA device (can be RAID 0/1 or some
989  * other configuration).
990  *
991  * When there's no device attached to the first downstream port of the
992  * 4726, "Config Disk" appears, which is a pseudo ATA device to
993  * configure the 4726.  However, ATA emulation of the device is very
994  * lame.  It doesn't send signature D2H Reg FIS after the initial
995  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
996  *
997  * The following function works around the problem by always using
998  * hardreset on the port and not depending on receiving signature FIS
999  * afterward.  If signature FIS isn't received soon, ATA class is
1000  * assumed without follow-up softreset.
1001  */
1002 static void ahci_p5wdh_workaround(struct ata_host *host)
1003 {
1004 	static const struct dmi_system_id sysids[] = {
1005 		{
1006 			.ident = "P5W DH Deluxe",
1007 			.matches = {
1008 				DMI_MATCH(DMI_SYS_VENDOR,
1009 					  "ASUSTEK COMPUTER INC"),
1010 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1011 			},
1012 		},
1013 		{ }
1014 	};
1015 	struct pci_dev *pdev = to_pci_dev(host->dev);
1016 
1017 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1018 	    dmi_check_system(sysids)) {
1019 		struct ata_port *ap = host->ports[1];
1020 
1021 		dev_info(&pdev->dev,
1022 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1023 
1024 		ap->ops = &ahci_p5wdh_ops;
1025 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1026 	}
1027 }
1028 
1029 /*
1030  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1031  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1032  */
1033 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1034 {
1035 	u32 val;
1036 
1037 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1038 
1039 	pci_read_config_dword(pdev, 0xf8, &val);
1040 	val |= 1 << 0x1b;
1041 	/* the following changes the device ID, but appears not to affect function */
1042 	/* val = (val & ~0xf0000000) | 0x80000000; */
1043 	pci_write_config_dword(pdev, 0xf8, val);
1044 
1045 	pci_read_config_dword(pdev, 0x54c, &val);
1046 	val |= 1 << 0xc;
1047 	pci_write_config_dword(pdev, 0x54c, val);
1048 
1049 	pci_read_config_dword(pdev, 0x4a4, &val);
1050 	val &= 0xff;
1051 	val |= 0x01060100;
1052 	pci_write_config_dword(pdev, 0x4a4, val);
1053 
1054 	pci_read_config_dword(pdev, 0x54c, &val);
1055 	val &= ~(1 << 0xc);
1056 	pci_write_config_dword(pdev, 0x54c, val);
1057 
1058 	pci_read_config_dword(pdev, 0xf8, &val);
1059 	val &= ~(1 << 0x1b);
1060 	pci_write_config_dword(pdev, 0xf8, val);
1061 }
1062 
1063 static bool is_mcp89_apple(struct pci_dev *pdev)
1064 {
1065 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1066 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1067 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1068 		pdev->subsystem_device == 0xcb89;
1069 }
1070 
1071 /* only some SB600 ahci controllers can do 64bit DMA */
1072 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1073 {
1074 	static const struct dmi_system_id sysids[] = {
1075 		/*
1076 		 * The oldest version known to be broken is 0901 and
1077 		 * working is 1501 which was released on 2007-10-26.
1078 		 * Enable 64bit DMA on 1501 and anything newer.
1079 		 *
1080 		 * Please read bko#9412 for more info.
1081 		 */
1082 		{
1083 			.ident = "ASUS M2A-VM",
1084 			.matches = {
1085 				DMI_MATCH(DMI_BOARD_VENDOR,
1086 					  "ASUSTeK Computer INC."),
1087 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1088 			},
1089 			.driver_data = "20071026",	/* yyyymmdd */
1090 		},
1091 		/*
1092 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1093 		 * support 64bit DMA.
1094 		 *
1095 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1096 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1097 		 * This spelling mistake was fixed in BIOS version 1.5, so
1098 		 * 1.5 and later have the Manufacturer as
1099 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1100 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1101 		 *
1102 		 * BIOS versions earlier than 1.9 had a Board Product Name
1103 		 * DMI field of "MS-7376". This was changed to be
1104 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1105 		 * match on DMI_BOARD_NAME of "MS-7376".
1106 		 */
1107 		{
1108 			.ident = "MSI K9A2 Platinum",
1109 			.matches = {
1110 				DMI_MATCH(DMI_BOARD_VENDOR,
1111 					  "MICRO-STAR INTER"),
1112 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1113 			},
1114 		},
1115 		/*
1116 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1117 		 * 64bit DMA.
1118 		 *
1119 		 * This board also had the typo mentioned above in the
1120 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1121 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1122 		 */
1123 		{
1124 			.ident = "MSI K9AGM2",
1125 			.matches = {
1126 				DMI_MATCH(DMI_BOARD_VENDOR,
1127 					  "MICRO-STAR INTER"),
1128 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1129 			},
1130 		},
1131 		/*
1132 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1133 		 * (all release versions from 0301 to 1206 were tested)
1134 		 */
1135 		{
1136 			.ident = "ASUS M3A",
1137 			.matches = {
1138 				DMI_MATCH(DMI_BOARD_VENDOR,
1139 					  "ASUSTeK Computer INC."),
1140 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1141 			},
1142 		},
1143 		{ }
1144 	};
1145 	const struct dmi_system_id *match;
1146 	int year, month, date;
1147 	char buf[9];
1148 
1149 	match = dmi_first_match(sysids);
1150 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1151 	    !match)
1152 		return false;
1153 
1154 	if (!match->driver_data)
1155 		goto enable_64bit;
1156 
1157 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1158 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1159 
1160 	if (strcmp(buf, match->driver_data) >= 0)
1161 		goto enable_64bit;
1162 	else {
1163 		dev_warn(&pdev->dev,
1164 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1165 			 match->ident);
1166 		return false;
1167 	}
1168 
1169 enable_64bit:
1170 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1171 	return true;
1172 }
1173 
1174 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1175 {
1176 	static const struct dmi_system_id broken_systems[] = {
1177 		{
1178 			.ident = "HP Compaq nx6310",
1179 			.matches = {
1180 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1181 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1182 			},
1183 			/* PCI slot number of the controller */
1184 			.driver_data = (void *)0x1FUL,
1185 		},
1186 		{
1187 			.ident = "HP Compaq 6720s",
1188 			.matches = {
1189 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1190 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1191 			},
1192 			/* PCI slot number of the controller */
1193 			.driver_data = (void *)0x1FUL,
1194 		},
1195 
1196 		{ }	/* terminate list */
1197 	};
1198 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1199 
1200 	if (dmi) {
1201 		unsigned long slot = (unsigned long)dmi->driver_data;
1202 		/* apply the quirk only to on-board controllers */
1203 		return slot == PCI_SLOT(pdev->devfn);
1204 	}
1205 
1206 	return false;
1207 }
1208 
1209 static bool ahci_broken_suspend(struct pci_dev *pdev)
1210 {
1211 	static const struct dmi_system_id sysids[] = {
1212 		/*
1213 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1214 		 * to the harddisk doesn't become online after
1215 		 * resuming from STR.  Warn and fail suspend.
1216 		 *
1217 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1218 		 *
1219 		 * Use dates instead of versions to match as HP is
1220 		 * apparently recycling both product and version
1221 		 * strings.
1222 		 *
1223 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1224 		 */
1225 		{
1226 			.ident = "dv4",
1227 			.matches = {
1228 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1229 				DMI_MATCH(DMI_PRODUCT_NAME,
1230 					  "HP Pavilion dv4 Notebook PC"),
1231 			},
1232 			.driver_data = "20090105",	/* F.30 */
1233 		},
1234 		{
1235 			.ident = "dv5",
1236 			.matches = {
1237 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1238 				DMI_MATCH(DMI_PRODUCT_NAME,
1239 					  "HP Pavilion dv5 Notebook PC"),
1240 			},
1241 			.driver_data = "20090506",	/* F.16 */
1242 		},
1243 		{
1244 			.ident = "dv6",
1245 			.matches = {
1246 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1247 				DMI_MATCH(DMI_PRODUCT_NAME,
1248 					  "HP Pavilion dv6 Notebook PC"),
1249 			},
1250 			.driver_data = "20090423",	/* F.21 */
1251 		},
1252 		{
1253 			.ident = "HDX18",
1254 			.matches = {
1255 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1256 				DMI_MATCH(DMI_PRODUCT_NAME,
1257 					  "HP HDX18 Notebook PC"),
1258 			},
1259 			.driver_data = "20090430",	/* F.23 */
1260 		},
1261 		/*
1262 		 * Acer eMachines G725 has the same problem.  BIOS
1263 		 * V1.03 is known to be broken.  V3.04 is known to
1264 		 * work.  Between, there are V1.06, V2.06 and V3.03
1265 		 * that we don't have much idea about.  For now,
1266 		 * blacklist anything older than V3.04.
1267 		 *
1268 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1269 		 */
1270 		{
1271 			.ident = "G725",
1272 			.matches = {
1273 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1274 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1275 			},
1276 			.driver_data = "20091216",	/* V3.04 */
1277 		},
1278 		{ }	/* terminate list */
1279 	};
1280 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1281 	int year, month, date;
1282 	char buf[9];
1283 
1284 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1285 		return false;
1286 
1287 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1288 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1289 
1290 	return strcmp(buf, dmi->driver_data) < 0;
1291 }
1292 
1293 static bool ahci_broken_lpm(struct pci_dev *pdev)
1294 {
1295 	static const struct dmi_system_id sysids[] = {
1296 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1297 		{
1298 			.matches = {
1299 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1300 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1301 			},
1302 			.driver_data = "20180406", /* 1.31 */
1303 		},
1304 		{
1305 			.matches = {
1306 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1307 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1308 			},
1309 			.driver_data = "20180420", /* 1.28 */
1310 		},
1311 		{
1312 			.matches = {
1313 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1314 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1315 			},
1316 			.driver_data = "20180315", /* 1.33 */
1317 		},
1318 		{
1319 			.matches = {
1320 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1321 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1322 			},
1323 			/*
1324 			 * Note date based on release notes, 2.35 has been
1325 			 * reported to be good, but I've been unable to get
1326 			 * a hold of the reporter to get the DMI BIOS date.
1327 			 * TODO: fix this.
1328 			 */
1329 			.driver_data = "20180310", /* 2.35 */
1330 		},
1331 		{ }	/* terminate list */
1332 	};
1333 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1334 	int year, month, date;
1335 	char buf[9];
1336 
1337 	if (!dmi)
1338 		return false;
1339 
1340 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1341 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1342 
1343 	return strcmp(buf, dmi->driver_data) < 0;
1344 }
1345 
1346 static bool ahci_broken_online(struct pci_dev *pdev)
1347 {
1348 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1349 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1350 	static const struct dmi_system_id sysids[] = {
1351 		/*
1352 		 * There are several gigabyte boards which use
1353 		 * SIMG5723s configured as hardware RAID.  Certain
1354 		 * 5723 firmware revisions shipped there keep the link
1355 		 * online but fail to answer properly to SRST or
1356 		 * IDENTIFY when no device is attached downstream
1357 		 * causing libata to retry quite a few times leading
1358 		 * to excessive detection delay.
1359 		 *
1360 		 * As these firmwares respond to the second reset try
1361 		 * with invalid device signature, considering unknown
1362 		 * sig as offline works around the problem acceptably.
1363 		 */
1364 		{
1365 			.ident = "EP45-DQ6",
1366 			.matches = {
1367 				DMI_MATCH(DMI_BOARD_VENDOR,
1368 					  "Gigabyte Technology Co., Ltd."),
1369 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1370 			},
1371 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1372 		},
1373 		{
1374 			.ident = "EP45-DS5",
1375 			.matches = {
1376 				DMI_MATCH(DMI_BOARD_VENDOR,
1377 					  "Gigabyte Technology Co., Ltd."),
1378 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1379 			},
1380 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1381 		},
1382 		{ }	/* terminate list */
1383 	};
1384 #undef ENCODE_BUSDEVFN
1385 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1386 	unsigned int val;
1387 
1388 	if (!dmi)
1389 		return false;
1390 
1391 	val = (unsigned long)dmi->driver_data;
1392 
1393 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1394 }
1395 
1396 static bool ahci_broken_devslp(struct pci_dev *pdev)
1397 {
1398 	/* device with broken DEVSLP but still showing SDS capability */
1399 	static const struct pci_device_id ids[] = {
1400 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1401 		{}
1402 	};
1403 
1404 	return pci_match_id(ids, pdev);
1405 }
1406 
1407 #ifdef CONFIG_ATA_ACPI
1408 static void ahci_gtf_filter_workaround(struct ata_host *host)
1409 {
1410 	static const struct dmi_system_id sysids[] = {
1411 		/*
1412 		 * Aspire 3810T issues a bunch of SATA enable commands
1413 		 * via _GTF including an invalid one and one which is
1414 		 * rejected by the device.  Among the successful ones
1415 		 * is FPDMA non-zero offset enable which when enabled
1416 		 * only on the drive side leads to NCQ command
1417 		 * failures.  Filter it out.
1418 		 */
1419 		{
1420 			.ident = "Aspire 3810T",
1421 			.matches = {
1422 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1423 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1424 			},
1425 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1426 		},
1427 		{ }
1428 	};
1429 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1430 	unsigned int filter;
1431 	int i;
1432 
1433 	if (!dmi)
1434 		return;
1435 
1436 	filter = (unsigned long)dmi->driver_data;
1437 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1438 		 filter, dmi->ident);
1439 
1440 	for (i = 0; i < host->n_ports; i++) {
1441 		struct ata_port *ap = host->ports[i];
1442 		struct ata_link *link;
1443 		struct ata_device *dev;
1444 
1445 		ata_for_each_link(link, ap, EDGE)
1446 			ata_for_each_dev(dev, link, ALL)
1447 				dev->gtf_filter |= filter;
1448 	}
1449 }
1450 #else
1451 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1452 {}
1453 #endif
1454 
1455 /*
1456  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1457  * as DUMMY, or detected but eventually get a "link down" and never get up
1458  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1459  * port_map may hold a value of 0x00.
1460  *
1461  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1462  * and can significantly reduce the occurrence of the problem.
1463  *
1464  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1465  */
1466 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1467 				    struct pci_dev *pdev)
1468 {
1469 	static const struct dmi_system_id sysids[] = {
1470 		{
1471 			.ident = "Acer Switch Alpha 12",
1472 			.matches = {
1473 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1474 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1475 			},
1476 		},
1477 		{ }
1478 	};
1479 
1480 	if (dmi_check_system(sysids)) {
1481 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1482 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1483 			hpriv->port_map = 0x7;
1484 			hpriv->cap = 0xC734FF02;
1485 		}
1486 	}
1487 }
1488 
1489 #ifdef CONFIG_ARM64
1490 /*
1491  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1492  * Workaround is to make sure all pending IRQs are served before leaving
1493  * handler.
1494  */
1495 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1496 {
1497 	struct ata_host *host = dev_instance;
1498 	struct ahci_host_priv *hpriv;
1499 	unsigned int rc = 0;
1500 	void __iomem *mmio;
1501 	u32 irq_stat, irq_masked;
1502 	unsigned int handled = 1;
1503 
1504 	hpriv = host->private_data;
1505 	mmio = hpriv->mmio;
1506 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1507 	if (!irq_stat)
1508 		return IRQ_NONE;
1509 
1510 	do {
1511 		irq_masked = irq_stat & hpriv->port_map;
1512 		spin_lock(&host->lock);
1513 		rc = ahci_handle_port_intr(host, irq_masked);
1514 		if (!rc)
1515 			handled = 0;
1516 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1517 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1518 		spin_unlock(&host->lock);
1519 	} while (irq_stat);
1520 
1521 	return IRQ_RETVAL(handled);
1522 }
1523 #endif
1524 
1525 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1526 		struct ahci_host_priv *hpriv)
1527 {
1528 	int i;
1529 	u32 cap;
1530 
1531 	/*
1532 	 * Check if this device might have remapped nvme devices.
1533 	 */
1534 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1535 	    pci_resource_len(pdev, bar) < SZ_512K ||
1536 	    bar != AHCI_PCI_BAR_STANDARD ||
1537 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1538 		return;
1539 
1540 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1541 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1542 		if ((cap & (1 << i)) == 0)
1543 			continue;
1544 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1545 				!= PCI_CLASS_STORAGE_EXPRESS)
1546 			continue;
1547 
1548 		/* We've found a remapped device */
1549 		hpriv->remapped_nvme++;
1550 	}
1551 
1552 	if (!hpriv->remapped_nvme)
1553 		return;
1554 
1555 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1556 		 hpriv->remapped_nvme);
1557 	dev_warn(&pdev->dev,
1558 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1559 
1560 	/*
1561 	 * Don't rely on the msi-x capability in the remap case,
1562 	 * share the legacy interrupt across ahci and remapped devices.
1563 	 */
1564 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1565 }
1566 
1567 static int ahci_get_irq_vector(struct ata_host *host, int port)
1568 {
1569 	return pci_irq_vector(to_pci_dev(host->dev), port);
1570 }
1571 
1572 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1573 			struct ahci_host_priv *hpriv)
1574 {
1575 	int nvec;
1576 
1577 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1578 		return -ENODEV;
1579 
1580 	/*
1581 	 * If number of MSIs is less than number of ports then Sharing Last
1582 	 * Message mode could be enforced. In this case assume that advantage
1583 	 * of multipe MSIs is negated and use single MSI mode instead.
1584 	 */
1585 	if (n_ports > 1) {
1586 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1587 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1588 		if (nvec > 0) {
1589 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1590 				hpriv->get_irq_vector = ahci_get_irq_vector;
1591 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1592 				return nvec;
1593 			}
1594 
1595 			/*
1596 			 * Fallback to single MSI mode if the controller
1597 			 * enforced MRSM mode.
1598 			 */
1599 			printk(KERN_INFO
1600 				"ahci: MRSM is on, fallback to single MSI\n");
1601 			pci_free_irq_vectors(pdev);
1602 		}
1603 	}
1604 
1605 	/*
1606 	 * If the host is not capable of supporting per-port vectors, fall
1607 	 * back to single MSI before finally attempting single MSI-X.
1608 	 */
1609 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1610 	if (nvec == 1)
1611 		return nvec;
1612 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1613 }
1614 
1615 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1616 					   struct ahci_host_priv *hpriv)
1617 {
1618 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1619 
1620 
1621 	/* Ignore processing for chipsets that don't use policy */
1622 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1623 		return;
1624 
1625 	/* user modified policy via module param */
1626 	if (mobile_lpm_policy != -1) {
1627 		policy = mobile_lpm_policy;
1628 		goto update_policy;
1629 	}
1630 
1631 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1632 		if (hpriv->cap & HOST_CAP_PART)
1633 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1634 		else if (hpriv->cap & HOST_CAP_SSC)
1635 			policy = ATA_LPM_MIN_POWER;
1636 	}
1637 
1638 update_policy:
1639 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1640 		ap->target_lpm_policy = policy;
1641 }
1642 
1643 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1644 {
1645 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1646 	u16 tmp16;
1647 
1648 	/*
1649 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1650 	 */
1651 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1652 		return;
1653 
1654 	/* Skip applying the quirk on Denverton and beyond */
1655 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1656 		return;
1657 
1658 	/*
1659 	 * port_map is determined from PORTS_IMPL PCI register which is
1660 	 * implemented as write or write-once register.  If the register
1661 	 * isn't programmed, ahci automatically generates it from number
1662 	 * of ports, which is good enough for PCS programming. It is
1663 	 * otherwise expected that platform firmware enables the ports
1664 	 * before the OS boots.
1665 	 */
1666 	pci_read_config_word(pdev, PCS_6, &tmp16);
1667 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1668 		tmp16 |= hpriv->port_map;
1669 		pci_write_config_word(pdev, PCS_6, tmp16);
1670 	}
1671 }
1672 
1673 static ssize_t remapped_nvme_show(struct device *dev,
1674 				  struct device_attribute *attr,
1675 				  char *buf)
1676 {
1677 	struct ata_host *host = dev_get_drvdata(dev);
1678 	struct ahci_host_priv *hpriv = host->private_data;
1679 
1680 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1681 }
1682 
1683 static DEVICE_ATTR_RO(remapped_nvme);
1684 
1685 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1686 {
1687 	unsigned int board_id = ent->driver_data;
1688 	struct ata_port_info pi = ahci_port_info[board_id];
1689 	const struct ata_port_info *ppi[] = { &pi, NULL };
1690 	struct device *dev = &pdev->dev;
1691 	struct ahci_host_priv *hpriv;
1692 	struct ata_host *host;
1693 	int n_ports, i, rc;
1694 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1695 
1696 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1697 
1698 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1699 
1700 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1701 	   can drive them all so if both drivers are selected make sure
1702 	   AHCI stays out of the way */
1703 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1704 		return -ENODEV;
1705 
1706 	/* Apple BIOS on MCP89 prevents us using AHCI */
1707 	if (is_mcp89_apple(pdev))
1708 		ahci_mcp89_apple_enable(pdev);
1709 
1710 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1711 	 * At the moment, we can only use the AHCI mode. Let the users know
1712 	 * that for SAS drives they're out of luck.
1713 	 */
1714 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1715 		dev_info(&pdev->dev,
1716 			 "PDC42819 can only drive SATA devices with this driver\n");
1717 
1718 	/* Some devices use non-standard BARs */
1719 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1720 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1721 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1722 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1723 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1724 		if (pdev->device == 0xa01c)
1725 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1726 		if (pdev->device == 0xa084)
1727 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1728 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1729 		if (pdev->device == 0x7a08)
1730 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1731 	}
1732 
1733 	/* acquire resources */
1734 	rc = pcim_enable_device(pdev);
1735 	if (rc)
1736 		return rc;
1737 
1738 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1739 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1740 		u8 map;
1741 
1742 		/* ICH6s share the same PCI ID for both piix and ahci
1743 		 * modes.  Enabling ahci mode while MAP indicates
1744 		 * combined mode is a bad idea.  Yield to ata_piix.
1745 		 */
1746 		pci_read_config_byte(pdev, ICH_MAP, &map);
1747 		if (map & 0x3) {
1748 			dev_info(&pdev->dev,
1749 				 "controller is in combined mode, can't enable AHCI mode\n");
1750 			return -ENODEV;
1751 		}
1752 	}
1753 
1754 	/* AHCI controllers often implement SFF compatible interface.
1755 	 * Grab all PCI BARs just in case.
1756 	 */
1757 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1758 	if (rc == -EBUSY)
1759 		pcim_pin_device(pdev);
1760 	if (rc)
1761 		return rc;
1762 
1763 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1764 	if (!hpriv)
1765 		return -ENOMEM;
1766 	hpriv->flags |= (unsigned long)pi.private_data;
1767 
1768 	/* MCP65 revision A1 and A2 can't do MSI */
1769 	if (board_id == board_ahci_mcp65 &&
1770 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1771 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1772 
1773 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1774 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1775 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1776 
1777 	/* only some SB600s can do 64bit DMA */
1778 	if (ahci_sb600_enable_64bit(pdev))
1779 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1780 
1781 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1782 
1783 	/* detect remapped nvme devices */
1784 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1785 
1786 	sysfs_add_file_to_group(&pdev->dev.kobj,
1787 				&dev_attr_remapped_nvme.attr,
1788 				NULL);
1789 
1790 	/* must set flag prior to save config in order to take effect */
1791 	if (ahci_broken_devslp(pdev))
1792 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1793 
1794 #ifdef CONFIG_ARM64
1795 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1796 	    pdev->device == 0xa235 &&
1797 	    pdev->revision < 0x30)
1798 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1799 
1800 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1801 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1802 #endif
1803 
1804 	/* save initial config */
1805 	ahci_pci_save_initial_config(pdev, hpriv);
1806 
1807 	/* prepare host */
1808 	if (hpriv->cap & HOST_CAP_NCQ) {
1809 		pi.flags |= ATA_FLAG_NCQ;
1810 		/*
1811 		 * Auto-activate optimization is supposed to be
1812 		 * supported on all AHCI controllers indicating NCQ
1813 		 * capability, but it seems to be broken on some
1814 		 * chipsets including NVIDIAs.
1815 		 */
1816 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1817 			pi.flags |= ATA_FLAG_FPDMA_AA;
1818 
1819 		/*
1820 		 * All AHCI controllers should be forward-compatible
1821 		 * with the new auxiliary field. This code should be
1822 		 * conditionalized if any buggy AHCI controllers are
1823 		 * encountered.
1824 		 */
1825 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1826 	}
1827 
1828 	if (hpriv->cap & HOST_CAP_PMP)
1829 		pi.flags |= ATA_FLAG_PMP;
1830 
1831 	ahci_set_em_messages(hpriv, &pi);
1832 
1833 	if (ahci_broken_system_poweroff(pdev)) {
1834 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1835 		dev_info(&pdev->dev,
1836 			"quirky BIOS, skipping spindown on poweroff\n");
1837 	}
1838 
1839 	if (ahci_broken_lpm(pdev)) {
1840 		pi.flags |= ATA_FLAG_NO_LPM;
1841 		dev_warn(&pdev->dev,
1842 			 "BIOS update required for Link Power Management support\n");
1843 	}
1844 
1845 	if (ahci_broken_suspend(pdev)) {
1846 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1847 		dev_warn(&pdev->dev,
1848 			 "BIOS update required for suspend/resume\n");
1849 	}
1850 
1851 	if (ahci_broken_online(pdev)) {
1852 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1853 		dev_info(&pdev->dev,
1854 			 "online status unreliable, applying workaround\n");
1855 	}
1856 
1857 
1858 	/* Acer SA5-271 workaround modifies private_data */
1859 	acer_sa5_271_workaround(hpriv, pdev);
1860 
1861 	/* CAP.NP sometimes indicate the index of the last enabled
1862 	 * port, at other times, that of the last possible port, so
1863 	 * determining the maximum port number requires looking at
1864 	 * both CAP.NP and port_map.
1865 	 */
1866 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1867 
1868 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1869 	if (!host)
1870 		return -ENOMEM;
1871 	host->private_data = hpriv;
1872 
1873 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1874 		/* legacy intx interrupts */
1875 		pci_intx(pdev, 1);
1876 	}
1877 	hpriv->irq = pci_irq_vector(pdev, 0);
1878 
1879 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1880 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1881 	else
1882 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1883 
1884 	if (pi.flags & ATA_FLAG_EM)
1885 		ahci_reset_em(host);
1886 
1887 	for (i = 0; i < host->n_ports; i++) {
1888 		struct ata_port *ap = host->ports[i];
1889 
1890 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1891 		ata_port_pbar_desc(ap, ahci_pci_bar,
1892 				   0x100 + ap->port_no * 0x80, "port");
1893 
1894 		/* set enclosure management message type */
1895 		if (ap->flags & ATA_FLAG_EM)
1896 			ap->em_message_type = hpriv->em_msg_type;
1897 
1898 		ahci_update_initial_lpm_policy(ap, hpriv);
1899 
1900 		/* disabled/not-implemented port */
1901 		if (!(hpriv->port_map & (1 << i)))
1902 			ap->ops = &ata_dummy_port_ops;
1903 	}
1904 
1905 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1906 	ahci_p5wdh_workaround(host);
1907 
1908 	/* apply gtf filter quirk */
1909 	ahci_gtf_filter_workaround(host);
1910 
1911 	/* initialize adapter */
1912 	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1913 	if (rc)
1914 		return rc;
1915 
1916 	rc = ahci_pci_reset_controller(host);
1917 	if (rc)
1918 		return rc;
1919 
1920 	ahci_pci_init_controller(host);
1921 	ahci_pci_print_info(host);
1922 
1923 	pci_set_master(pdev);
1924 
1925 	rc = ahci_host_activate(host, &ahci_sht);
1926 	if (rc)
1927 		return rc;
1928 
1929 	pm_runtime_put_noidle(&pdev->dev);
1930 	return 0;
1931 }
1932 
1933 static void ahci_shutdown_one(struct pci_dev *pdev)
1934 {
1935 	ata_pci_shutdown_one(pdev);
1936 }
1937 
1938 static void ahci_remove_one(struct pci_dev *pdev)
1939 {
1940 	sysfs_remove_file_from_group(&pdev->dev.kobj,
1941 				     &dev_attr_remapped_nvme.attr,
1942 				     NULL);
1943 	pm_runtime_get_noresume(&pdev->dev);
1944 	ata_pci_remove_one(pdev);
1945 }
1946 
1947 module_pci_driver(ahci_pci_driver);
1948 
1949 MODULE_AUTHOR("Jeff Garzik");
1950 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1951 MODULE_LICENSE("GPL");
1952 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1953 MODULE_VERSION(DRV_VERSION);
1954