xref: /openbmc/linux/drivers/ata/ahci.c (revision 9c122d02)
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 char *ahci_mask_port_map;
671 module_param_named(mask_port_map, ahci_mask_port_map, charp, 0444);
672 MODULE_PARM_DESC(mask_port_map,
673 		 "32-bits port map masks to ignore controllers ports. "
674 		 "Valid values are: "
675 		 "\"<mask>\" to apply the same mask to all AHCI controller "
676 		 "devices, and \"<pci_dev>=<mask>,<pci_dev>=<mask>,...\" to "
677 		 "specify different masks for the controllers specified, "
678 		 "where <pci_dev> is the PCI ID of an AHCI controller in the "
679 		 "form \"domain:bus:dev.func\"");
680 
ahci_apply_port_map_mask(struct device * dev,struct ahci_host_priv * hpriv,char * mask_s)681 static void ahci_apply_port_map_mask(struct device *dev,
682 				     struct ahci_host_priv *hpriv, char *mask_s)
683 {
684 	unsigned int mask;
685 
686 	if (kstrtouint(mask_s, 0, &mask)) {
687 		dev_err(dev, "Invalid port map mask\n");
688 		return;
689 	}
690 
691 	hpriv->mask_port_map = mask;
692 }
693 
ahci_get_port_map_mask(struct device * dev,struct ahci_host_priv * hpriv)694 static void ahci_get_port_map_mask(struct device *dev,
695 				   struct ahci_host_priv *hpriv)
696 {
697 	char *param, *end, *str, *mask_s;
698 	char *name;
699 
700 	if (!strlen(ahci_mask_port_map))
701 		return;
702 
703 	str = kstrdup(ahci_mask_port_map, GFP_KERNEL);
704 	if (!str)
705 		return;
706 
707 	/* Handle single mask case */
708 	if (!strchr(str, '=')) {
709 		ahci_apply_port_map_mask(dev, hpriv, str);
710 		goto free;
711 	}
712 
713 	/*
714 	 * Mask list case: parse the parameter to apply the mask only if
715 	 * the device name matches.
716 	 */
717 	param = str;
718 	end = param + strlen(param);
719 	while (param && param < end && *param) {
720 		name = param;
721 		param = strchr(name, '=');
722 		if (!param)
723 			break;
724 
725 		*param = '\0';
726 		param++;
727 		if (param >= end)
728 			break;
729 
730 		if (strcmp(dev_name(dev), name) != 0) {
731 			param = strchr(param, ',');
732 			if (param)
733 				param++;
734 			continue;
735 		}
736 
737 		mask_s = param;
738 		param = strchr(mask_s, ',');
739 		if (param) {
740 			*param = '\0';
741 			param++;
742 		}
743 
744 		ahci_apply_port_map_mask(dev, hpriv, mask_s);
745 	}
746 
747 free:
748 	kfree(str);
749 }
750 
ahci_pci_save_initial_config(struct pci_dev * pdev,struct ahci_host_priv * hpriv)751 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
752 					 struct ahci_host_priv *hpriv)
753 {
754 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
755 		dev_info(&pdev->dev, "JMB361 has only one port\n");
756 		hpriv->saved_port_map = 1;
757 	}
758 
759 	/*
760 	 * Temporary Marvell 6145 hack: PATA port presence
761 	 * is asserted through the standard AHCI port
762 	 * presence register, as bit 4 (counting from 0)
763 	 */
764 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
765 		if (pdev->device == 0x6121)
766 			hpriv->mask_port_map = 0x3;
767 		else
768 			hpriv->mask_port_map = 0xf;
769 		dev_info(&pdev->dev,
770 			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
771 	}
772 
773 	/* Handle port map masks passed as module parameter. */
774 	if (ahci_mask_port_map)
775 		ahci_get_port_map_mask(&pdev->dev, hpriv);
776 
777 	ahci_save_initial_config(&pdev->dev, hpriv);
778 }
779 
ahci_pci_reset_controller(struct ata_host * host)780 static int ahci_pci_reset_controller(struct ata_host *host)
781 {
782 	struct pci_dev *pdev = to_pci_dev(host->dev);
783 	struct ahci_host_priv *hpriv = host->private_data;
784 	int rc;
785 
786 	rc = ahci_reset_controller(host);
787 	if (rc)
788 		return rc;
789 
790 	/*
791 	 * If platform firmware failed to enable ports, try to enable
792 	 * them here.
793 	 */
794 	ahci_intel_pcs_quirk(pdev, hpriv);
795 
796 	return 0;
797 }
798 
ahci_pci_init_controller(struct ata_host * host)799 static void ahci_pci_init_controller(struct ata_host *host)
800 {
801 	struct ahci_host_priv *hpriv = host->private_data;
802 	struct pci_dev *pdev = to_pci_dev(host->dev);
803 	void __iomem *port_mmio;
804 	u32 tmp;
805 	int mv;
806 
807 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
808 		if (pdev->device == 0x6121)
809 			mv = 2;
810 		else
811 			mv = 4;
812 		port_mmio = __ahci_port_base(hpriv, mv);
813 
814 		writel(0, port_mmio + PORT_IRQ_MASK);
815 
816 		/* clear port IRQ */
817 		tmp = readl(port_mmio + PORT_IRQ_STAT);
818 		dev_dbg(&pdev->dev, "PORT_IRQ_STAT 0x%x\n", tmp);
819 		if (tmp)
820 			writel(tmp, port_mmio + PORT_IRQ_STAT);
821 	}
822 
823 	ahci_init_controller(host);
824 }
825 
ahci_vt8251_hardreset(struct ata_link * link,unsigned int * class,unsigned long deadline)826 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
827 				 unsigned long deadline)
828 {
829 	struct ata_port *ap = link->ap;
830 	struct ahci_host_priv *hpriv = ap->host->private_data;
831 	bool online;
832 	int rc;
833 
834 	hpriv->stop_engine(ap);
835 
836 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
837 				 deadline, &online, NULL);
838 
839 	hpriv->start_engine(ap);
840 
841 	/* vt8251 doesn't clear BSY on signature FIS reception,
842 	 * request follow-up softreset.
843 	 */
844 	return online ? -EAGAIN : rc;
845 }
846 
ahci_p5wdh_hardreset(struct ata_link * link,unsigned int * class,unsigned long deadline)847 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
848 				unsigned long deadline)
849 {
850 	struct ata_port *ap = link->ap;
851 	struct ahci_port_priv *pp = ap->private_data;
852 	struct ahci_host_priv *hpriv = ap->host->private_data;
853 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
854 	struct ata_taskfile tf;
855 	bool online;
856 	int rc;
857 
858 	hpriv->stop_engine(ap);
859 
860 	/* clear D2H reception area to properly wait for D2H FIS */
861 	ata_tf_init(link->device, &tf);
862 	tf.status = ATA_BUSY;
863 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
864 
865 	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
866 				 deadline, &online, NULL);
867 
868 	hpriv->start_engine(ap);
869 
870 	/* The pseudo configuration device on SIMG4726 attached to
871 	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
872 	 * hardreset if no device is attached to the first downstream
873 	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
874 	 * work around this, wait for !BSY only briefly.  If BSY isn't
875 	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
876 	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
877 	 *
878 	 * Wait for two seconds.  Devices attached to downstream port
879 	 * which can't process the following IDENTIFY after this will
880 	 * have to be reset again.  For most cases, this should
881 	 * suffice while making probing snappish enough.
882 	 */
883 	if (online) {
884 		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
885 					  ahci_check_ready);
886 		if (rc)
887 			ahci_kick_engine(ap);
888 	}
889 	return rc;
890 }
891 
892 /*
893  * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
894  *
895  * It has been observed with some SSDs that the timing of events in the
896  * link synchronization phase can leave the port in a state that can not
897  * be recovered by a SATA-hard-reset alone.  The failing signature is
898  * SStatus.DET stuck at 1 ("Device presence detected but Phy
899  * communication not established").  It was found that unloading and
900  * reloading the driver when this problem occurs allows the drive
901  * connection to be recovered (DET advanced to 0x3).  The critical
902  * component of reloading the driver is that the port state machines are
903  * reset by bouncing "port enable" in the AHCI PCS configuration
904  * register.  So, reproduce that effect by bouncing a port whenever we
905  * see DET==1 after a reset.
906  */
ahci_avn_hardreset(struct ata_link * link,unsigned int * class,unsigned long deadline)907 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
908 			      unsigned long deadline)
909 {
910 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);
911 	struct ata_port *ap = link->ap;
912 	struct ahci_port_priv *pp = ap->private_data;
913 	struct ahci_host_priv *hpriv = ap->host->private_data;
914 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
915 	unsigned long tmo = deadline - jiffies;
916 	struct ata_taskfile tf;
917 	bool online;
918 	int rc, i;
919 
920 	hpriv->stop_engine(ap);
921 
922 	for (i = 0; i < 2; i++) {
923 		u16 val;
924 		u32 sstatus;
925 		int port = ap->port_no;
926 		struct ata_host *host = ap->host;
927 		struct pci_dev *pdev = to_pci_dev(host->dev);
928 
929 		/* clear D2H reception area to properly wait for D2H FIS */
930 		ata_tf_init(link->device, &tf);
931 		tf.status = ATA_BUSY;
932 		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
933 
934 		rc = sata_link_hardreset(link, timing, deadline, &online,
935 				ahci_check_ready);
936 
937 		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
938 				(sstatus & 0xf) != 1)
939 			break;
940 
941 		ata_link_info(link,  "avn bounce port%d\n", port);
942 
943 		pci_read_config_word(pdev, 0x92, &val);
944 		val &= ~(1 << port);
945 		pci_write_config_word(pdev, 0x92, val);
946 		ata_msleep(ap, 1000);
947 		val |= 1 << port;
948 		pci_write_config_word(pdev, 0x92, val);
949 		deadline += tmo;
950 	}
951 
952 	hpriv->start_engine(ap);
953 
954 	if (online)
955 		*class = ahci_dev_classify(ap);
956 
957 	return rc;
958 }
959 
960 
961 #ifdef CONFIG_PM
ahci_pci_disable_interrupts(struct ata_host * host)962 static void ahci_pci_disable_interrupts(struct ata_host *host)
963 {
964 	struct ahci_host_priv *hpriv = host->private_data;
965 	void __iomem *mmio = hpriv->mmio;
966 	u32 ctl;
967 
968 	/* AHCI spec rev1.1 section 8.3.3:
969 	 * Software must disable interrupts prior to requesting a
970 	 * transition of the HBA to D3 state.
971 	 */
972 	ctl = readl(mmio + HOST_CTL);
973 	ctl &= ~HOST_IRQ_EN;
974 	writel(ctl, mmio + HOST_CTL);
975 	readl(mmio + HOST_CTL); /* flush */
976 }
977 
ahci_pci_device_runtime_suspend(struct device * dev)978 static int ahci_pci_device_runtime_suspend(struct device *dev)
979 {
980 	struct pci_dev *pdev = to_pci_dev(dev);
981 	struct ata_host *host = pci_get_drvdata(pdev);
982 
983 	ahci_pci_disable_interrupts(host);
984 	return 0;
985 }
986 
ahci_pci_device_runtime_resume(struct device * dev)987 static int ahci_pci_device_runtime_resume(struct device *dev)
988 {
989 	struct pci_dev *pdev = to_pci_dev(dev);
990 	struct ata_host *host = pci_get_drvdata(pdev);
991 	int rc;
992 
993 	rc = ahci_pci_reset_controller(host);
994 	if (rc)
995 		return rc;
996 	ahci_pci_init_controller(host);
997 	return 0;
998 }
999 
1000 #ifdef CONFIG_PM_SLEEP
ahci_pci_device_suspend(struct device * dev)1001 static int ahci_pci_device_suspend(struct device *dev)
1002 {
1003 	struct pci_dev *pdev = to_pci_dev(dev);
1004 	struct ata_host *host = pci_get_drvdata(pdev);
1005 	struct ahci_host_priv *hpriv = host->private_data;
1006 
1007 	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
1008 		dev_err(&pdev->dev,
1009 			"BIOS update required for suspend/resume\n");
1010 		return -EIO;
1011 	}
1012 
1013 	ahci_pci_disable_interrupts(host);
1014 	ata_host_suspend(host, PMSG_SUSPEND);
1015 	return 0;
1016 }
1017 
ahci_pci_device_resume(struct device * dev)1018 static int ahci_pci_device_resume(struct device *dev)
1019 {
1020 	struct pci_dev *pdev = to_pci_dev(dev);
1021 	struct ata_host *host = pci_get_drvdata(pdev);
1022 	int rc;
1023 
1024 	/* Apple BIOS helpfully mangles the registers on resume */
1025 	if (is_mcp89_apple(pdev))
1026 		ahci_mcp89_apple_enable(pdev);
1027 
1028 	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
1029 		rc = ahci_pci_reset_controller(host);
1030 		if (rc)
1031 			return rc;
1032 
1033 		ahci_pci_init_controller(host);
1034 	}
1035 
1036 	ata_host_resume(host);
1037 
1038 	return 0;
1039 }
1040 #endif
1041 
1042 #endif /* CONFIG_PM */
1043 
ahci_configure_dma_masks(struct pci_dev * pdev,struct ahci_host_priv * hpriv)1044 static int ahci_configure_dma_masks(struct pci_dev *pdev,
1045 				    struct ahci_host_priv *hpriv)
1046 {
1047 	int dma_bits;
1048 	int rc;
1049 
1050 	if (hpriv->cap & HOST_CAP_64) {
1051 		dma_bits = 64;
1052 		if (hpriv->flags & AHCI_HFLAG_43BIT_ONLY)
1053 			dma_bits = 43;
1054 	} else {
1055 		dma_bits = 32;
1056 	}
1057 
1058 	/*
1059 	 * If the device fixup already set the dma_mask to some non-standard
1060 	 * value, don't extend it here. This happens on STA2X11, for example.
1061 	 *
1062 	 * XXX: manipulating the DMA mask from platform code is completely
1063 	 * bogus, platform code should use dev->bus_dma_limit instead..
1064 	 */
1065 	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
1066 		return 0;
1067 
1068 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
1069 	if (rc)
1070 		dev_err(&pdev->dev, "DMA enable failed\n");
1071 	return rc;
1072 }
1073 
ahci_pci_print_info(struct ata_host * host)1074 static void ahci_pci_print_info(struct ata_host *host)
1075 {
1076 	struct pci_dev *pdev = to_pci_dev(host->dev);
1077 	u16 cc;
1078 	const char *scc_s;
1079 
1080 	pci_read_config_word(pdev, 0x0a, &cc);
1081 	if (cc == PCI_CLASS_STORAGE_IDE)
1082 		scc_s = "IDE";
1083 	else if (cc == PCI_CLASS_STORAGE_SATA)
1084 		scc_s = "SATA";
1085 	else if (cc == PCI_CLASS_STORAGE_RAID)
1086 		scc_s = "RAID";
1087 	else
1088 		scc_s = "unknown";
1089 
1090 	ahci_print_info(host, scc_s);
1091 }
1092 
1093 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
1094  * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
1095  * support PMP and the 4726 either directly exports the device
1096  * attached to the first downstream port or acts as a hardware storage
1097  * controller and emulate a single ATA device (can be RAID 0/1 or some
1098  * other configuration).
1099  *
1100  * When there's no device attached to the first downstream port of the
1101  * 4726, "Config Disk" appears, which is a pseudo ATA device to
1102  * configure the 4726.  However, ATA emulation of the device is very
1103  * lame.  It doesn't send signature D2H Reg FIS after the initial
1104  * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
1105  *
1106  * The following function works around the problem by always using
1107  * hardreset on the port and not depending on receiving signature FIS
1108  * afterward.  If signature FIS isn't received soon, ATA class is
1109  * assumed without follow-up softreset.
1110  */
ahci_p5wdh_workaround(struct ata_host * host)1111 static void ahci_p5wdh_workaround(struct ata_host *host)
1112 {
1113 	static const struct dmi_system_id sysids[] = {
1114 		{
1115 			.ident = "P5W DH Deluxe",
1116 			.matches = {
1117 				DMI_MATCH(DMI_SYS_VENDOR,
1118 					  "ASUSTEK COMPUTER INC"),
1119 				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
1120 			},
1121 		},
1122 		{ }
1123 	};
1124 	struct pci_dev *pdev = to_pci_dev(host->dev);
1125 
1126 	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
1127 	    dmi_check_system(sysids)) {
1128 		struct ata_port *ap = host->ports[1];
1129 
1130 		dev_info(&pdev->dev,
1131 			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1132 
1133 		ap->ops = &ahci_p5wdh_ops;
1134 		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1135 	}
1136 }
1137 
1138 /*
1139  * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1140  * booting in BIOS compatibility mode.  We restore the registers but not ID.
1141  */
ahci_mcp89_apple_enable(struct pci_dev * pdev)1142 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1143 {
1144 	u32 val;
1145 
1146 	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1147 
1148 	pci_read_config_dword(pdev, 0xf8, &val);
1149 	val |= 1 << 0x1b;
1150 	/* the following changes the device ID, but appears not to affect function */
1151 	/* val = (val & ~0xf0000000) | 0x80000000; */
1152 	pci_write_config_dword(pdev, 0xf8, val);
1153 
1154 	pci_read_config_dword(pdev, 0x54c, &val);
1155 	val |= 1 << 0xc;
1156 	pci_write_config_dword(pdev, 0x54c, val);
1157 
1158 	pci_read_config_dword(pdev, 0x4a4, &val);
1159 	val &= 0xff;
1160 	val |= 0x01060100;
1161 	pci_write_config_dword(pdev, 0x4a4, val);
1162 
1163 	pci_read_config_dword(pdev, 0x54c, &val);
1164 	val &= ~(1 << 0xc);
1165 	pci_write_config_dword(pdev, 0x54c, val);
1166 
1167 	pci_read_config_dword(pdev, 0xf8, &val);
1168 	val &= ~(1 << 0x1b);
1169 	pci_write_config_dword(pdev, 0xf8, val);
1170 }
1171 
is_mcp89_apple(struct pci_dev * pdev)1172 static bool is_mcp89_apple(struct pci_dev *pdev)
1173 {
1174 	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1175 		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1176 		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1177 		pdev->subsystem_device == 0xcb89;
1178 }
1179 
1180 /* only some SB600 ahci controllers can do 64bit DMA */
ahci_sb600_enable_64bit(struct pci_dev * pdev)1181 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1182 {
1183 	static const struct dmi_system_id sysids[] = {
1184 		/*
1185 		 * The oldest version known to be broken is 0901 and
1186 		 * working is 1501 which was released on 2007-10-26.
1187 		 * Enable 64bit DMA on 1501 and anything newer.
1188 		 *
1189 		 * Please read bko#9412 for more info.
1190 		 */
1191 		{
1192 			.ident = "ASUS M2A-VM",
1193 			.matches = {
1194 				DMI_MATCH(DMI_BOARD_VENDOR,
1195 					  "ASUSTeK Computer INC."),
1196 				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1197 			},
1198 			.driver_data = "20071026",	/* yyyymmdd */
1199 		},
1200 		/*
1201 		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1202 		 * support 64bit DMA.
1203 		 *
1204 		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1205 		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1206 		 * This spelling mistake was fixed in BIOS version 1.5, so
1207 		 * 1.5 and later have the Manufacturer as
1208 		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1209 		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1210 		 *
1211 		 * BIOS versions earlier than 1.9 had a Board Product Name
1212 		 * DMI field of "MS-7376". This was changed to be
1213 		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1214 		 * match on DMI_BOARD_NAME of "MS-7376".
1215 		 */
1216 		{
1217 			.ident = "MSI K9A2 Platinum",
1218 			.matches = {
1219 				DMI_MATCH(DMI_BOARD_VENDOR,
1220 					  "MICRO-STAR INTER"),
1221 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1222 			},
1223 		},
1224 		/*
1225 		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1226 		 * 64bit DMA.
1227 		 *
1228 		 * This board also had the typo mentioned above in the
1229 		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1230 		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1231 		 */
1232 		{
1233 			.ident = "MSI K9AGM2",
1234 			.matches = {
1235 				DMI_MATCH(DMI_BOARD_VENDOR,
1236 					  "MICRO-STAR INTER"),
1237 				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1238 			},
1239 		},
1240 		/*
1241 		 * All BIOS versions for the Asus M3A support 64bit DMA.
1242 		 * (all release versions from 0301 to 1206 were tested)
1243 		 */
1244 		{
1245 			.ident = "ASUS M3A",
1246 			.matches = {
1247 				DMI_MATCH(DMI_BOARD_VENDOR,
1248 					  "ASUSTeK Computer INC."),
1249 				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1250 			},
1251 		},
1252 		{ }
1253 	};
1254 	const struct dmi_system_id *match;
1255 	int year, month, date;
1256 	char buf[9];
1257 
1258 	match = dmi_first_match(sysids);
1259 	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1260 	    !match)
1261 		return false;
1262 
1263 	if (!match->driver_data)
1264 		goto enable_64bit;
1265 
1266 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1267 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1268 
1269 	if (strcmp(buf, match->driver_data) >= 0)
1270 		goto enable_64bit;
1271 	else {
1272 		dev_warn(&pdev->dev,
1273 			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1274 			 match->ident);
1275 		return false;
1276 	}
1277 
1278 enable_64bit:
1279 	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1280 	return true;
1281 }
1282 
ahci_broken_system_poweroff(struct pci_dev * pdev)1283 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1284 {
1285 	static const struct dmi_system_id broken_systems[] = {
1286 		{
1287 			.ident = "HP Compaq nx6310",
1288 			.matches = {
1289 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1290 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1291 			},
1292 			/* PCI slot number of the controller */
1293 			.driver_data = (void *)0x1FUL,
1294 		},
1295 		{
1296 			.ident = "HP Compaq 6720s",
1297 			.matches = {
1298 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1299 				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1300 			},
1301 			/* PCI slot number of the controller */
1302 			.driver_data = (void *)0x1FUL,
1303 		},
1304 
1305 		{ }	/* terminate list */
1306 	};
1307 	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1308 
1309 	if (dmi) {
1310 		unsigned long slot = (unsigned long)dmi->driver_data;
1311 		/* apply the quirk only to on-board controllers */
1312 		return slot == PCI_SLOT(pdev->devfn);
1313 	}
1314 
1315 	return false;
1316 }
1317 
ahci_broken_suspend(struct pci_dev * pdev)1318 static bool ahci_broken_suspend(struct pci_dev *pdev)
1319 {
1320 	static const struct dmi_system_id sysids[] = {
1321 		/*
1322 		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1323 		 * to the harddisk doesn't become online after
1324 		 * resuming from STR.  Warn and fail suspend.
1325 		 *
1326 		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1327 		 *
1328 		 * Use dates instead of versions to match as HP is
1329 		 * apparently recycling both product and version
1330 		 * strings.
1331 		 *
1332 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1333 		 */
1334 		{
1335 			.ident = "dv4",
1336 			.matches = {
1337 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1338 				DMI_MATCH(DMI_PRODUCT_NAME,
1339 					  "HP Pavilion dv4 Notebook PC"),
1340 			},
1341 			.driver_data = "20090105",	/* F.30 */
1342 		},
1343 		{
1344 			.ident = "dv5",
1345 			.matches = {
1346 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1347 				DMI_MATCH(DMI_PRODUCT_NAME,
1348 					  "HP Pavilion dv5 Notebook PC"),
1349 			},
1350 			.driver_data = "20090506",	/* F.16 */
1351 		},
1352 		{
1353 			.ident = "dv6",
1354 			.matches = {
1355 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1356 				DMI_MATCH(DMI_PRODUCT_NAME,
1357 					  "HP Pavilion dv6 Notebook PC"),
1358 			},
1359 			.driver_data = "20090423",	/* F.21 */
1360 		},
1361 		{
1362 			.ident = "HDX18",
1363 			.matches = {
1364 				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1365 				DMI_MATCH(DMI_PRODUCT_NAME,
1366 					  "HP HDX18 Notebook PC"),
1367 			},
1368 			.driver_data = "20090430",	/* F.23 */
1369 		},
1370 		/*
1371 		 * Acer eMachines G725 has the same problem.  BIOS
1372 		 * V1.03 is known to be broken.  V3.04 is known to
1373 		 * work.  Between, there are V1.06, V2.06 and V3.03
1374 		 * that we don't have much idea about.  For now,
1375 		 * blacklist anything older than V3.04.
1376 		 *
1377 		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1378 		 */
1379 		{
1380 			.ident = "G725",
1381 			.matches = {
1382 				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1383 				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1384 			},
1385 			.driver_data = "20091216",	/* V3.04 */
1386 		},
1387 		{ }	/* terminate list */
1388 	};
1389 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1390 	int year, month, date;
1391 	char buf[9];
1392 
1393 	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1394 		return false;
1395 
1396 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1397 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1398 
1399 	return strcmp(buf, dmi->driver_data) < 0;
1400 }
1401 
ahci_broken_lpm(struct pci_dev * pdev)1402 static bool ahci_broken_lpm(struct pci_dev *pdev)
1403 {
1404 	static const struct dmi_system_id sysids[] = {
1405 		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1406 		{
1407 			.matches = {
1408 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1409 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1410 			},
1411 			.driver_data = "20180406", /* 1.31 */
1412 		},
1413 		{
1414 			.matches = {
1415 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1416 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1417 			},
1418 			.driver_data = "20180420", /* 1.28 */
1419 		},
1420 		{
1421 			.matches = {
1422 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1423 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1424 			},
1425 			.driver_data = "20180315", /* 1.33 */
1426 		},
1427 		{
1428 			.matches = {
1429 				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1430 				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1431 			},
1432 			/*
1433 			 * Note date based on release notes, 2.35 has been
1434 			 * reported to be good, but I've been unable to get
1435 			 * a hold of the reporter to get the DMI BIOS date.
1436 			 * TODO: fix this.
1437 			 */
1438 			.driver_data = "20180310", /* 2.35 */
1439 		},
1440 		{ }	/* terminate list */
1441 	};
1442 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1443 	int year, month, date;
1444 	char buf[9];
1445 
1446 	if (!dmi)
1447 		return false;
1448 
1449 	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1450 	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1451 
1452 	return strcmp(buf, dmi->driver_data) < 0;
1453 }
1454 
ahci_broken_online(struct pci_dev * pdev)1455 static bool ahci_broken_online(struct pci_dev *pdev)
1456 {
1457 #define ENCODE_BUSDEVFN(bus, slot, func)			\
1458 	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1459 	static const struct dmi_system_id sysids[] = {
1460 		/*
1461 		 * There are several gigabyte boards which use
1462 		 * SIMG5723s configured as hardware RAID.  Certain
1463 		 * 5723 firmware revisions shipped there keep the link
1464 		 * online but fail to answer properly to SRST or
1465 		 * IDENTIFY when no device is attached downstream
1466 		 * causing libata to retry quite a few times leading
1467 		 * to excessive detection delay.
1468 		 *
1469 		 * As these firmwares respond to the second reset try
1470 		 * with invalid device signature, considering unknown
1471 		 * sig as offline works around the problem acceptably.
1472 		 */
1473 		{
1474 			.ident = "EP45-DQ6",
1475 			.matches = {
1476 				DMI_MATCH(DMI_BOARD_VENDOR,
1477 					  "Gigabyte Technology Co., Ltd."),
1478 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1479 			},
1480 			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1481 		},
1482 		{
1483 			.ident = "EP45-DS5",
1484 			.matches = {
1485 				DMI_MATCH(DMI_BOARD_VENDOR,
1486 					  "Gigabyte Technology Co., Ltd."),
1487 				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1488 			},
1489 			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1490 		},
1491 		{ }	/* terminate list */
1492 	};
1493 #undef ENCODE_BUSDEVFN
1494 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1495 	unsigned int val;
1496 
1497 	if (!dmi)
1498 		return false;
1499 
1500 	val = (unsigned long)dmi->driver_data;
1501 
1502 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1503 }
1504 
ahci_broken_devslp(struct pci_dev * pdev)1505 static bool ahci_broken_devslp(struct pci_dev *pdev)
1506 {
1507 	/* device with broken DEVSLP but still showing SDS capability */
1508 	static const struct pci_device_id ids[] = {
1509 		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1510 		{}
1511 	};
1512 
1513 	return pci_match_id(ids, pdev);
1514 }
1515 
1516 #ifdef CONFIG_ATA_ACPI
ahci_gtf_filter_workaround(struct ata_host * host)1517 static void ahci_gtf_filter_workaround(struct ata_host *host)
1518 {
1519 	static const struct dmi_system_id sysids[] = {
1520 		/*
1521 		 * Aspire 3810T issues a bunch of SATA enable commands
1522 		 * via _GTF including an invalid one and one which is
1523 		 * rejected by the device.  Among the successful ones
1524 		 * is FPDMA non-zero offset enable which when enabled
1525 		 * only on the drive side leads to NCQ command
1526 		 * failures.  Filter it out.
1527 		 */
1528 		{
1529 			.ident = "Aspire 3810T",
1530 			.matches = {
1531 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1532 				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1533 			},
1534 			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1535 		},
1536 		{ }
1537 	};
1538 	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1539 	unsigned int filter;
1540 	int i;
1541 
1542 	if (!dmi)
1543 		return;
1544 
1545 	filter = (unsigned long)dmi->driver_data;
1546 	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1547 		 filter, dmi->ident);
1548 
1549 	for (i = 0; i < host->n_ports; i++) {
1550 		struct ata_port *ap = host->ports[i];
1551 		struct ata_link *link;
1552 		struct ata_device *dev;
1553 
1554 		ata_for_each_link(link, ap, EDGE)
1555 			ata_for_each_dev(dev, link, ALL)
1556 				dev->gtf_filter |= filter;
1557 	}
1558 }
1559 #else
ahci_gtf_filter_workaround(struct ata_host * host)1560 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1561 {}
1562 #endif
1563 
1564 /*
1565  * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1566  * as DUMMY, or detected but eventually get a "link down" and never get up
1567  * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1568  * port_map may hold a value of 0x00.
1569  *
1570  * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1571  * and can significantly reduce the occurrence of the problem.
1572  *
1573  * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1574  */
acer_sa5_271_workaround(struct ahci_host_priv * hpriv,struct pci_dev * pdev)1575 static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1576 				    struct pci_dev *pdev)
1577 {
1578 	static const struct dmi_system_id sysids[] = {
1579 		{
1580 			.ident = "Acer Switch Alpha 12",
1581 			.matches = {
1582 				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1583 				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1584 			},
1585 		},
1586 		{ }
1587 	};
1588 
1589 	if (dmi_check_system(sysids)) {
1590 		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1591 		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1592 			hpriv->port_map = 0x7;
1593 			hpriv->cap = 0xC734FF02;
1594 		}
1595 	}
1596 }
1597 
1598 #ifdef CONFIG_ARM64
1599 /*
1600  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1601  * Workaround is to make sure all pending IRQs are served before leaving
1602  * handler.
1603  */
ahci_thunderx_irq_handler(int irq,void * dev_instance)1604 static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1605 {
1606 	struct ata_host *host = dev_instance;
1607 	struct ahci_host_priv *hpriv;
1608 	unsigned int rc = 0;
1609 	void __iomem *mmio;
1610 	u32 irq_stat, irq_masked;
1611 	unsigned int handled = 1;
1612 
1613 	hpriv = host->private_data;
1614 	mmio = hpriv->mmio;
1615 	irq_stat = readl(mmio + HOST_IRQ_STAT);
1616 	if (!irq_stat)
1617 		return IRQ_NONE;
1618 
1619 	do {
1620 		irq_masked = irq_stat & hpriv->port_map;
1621 		spin_lock(&host->lock);
1622 		rc = ahci_handle_port_intr(host, irq_masked);
1623 		if (!rc)
1624 			handled = 0;
1625 		writel(irq_stat, mmio + HOST_IRQ_STAT);
1626 		irq_stat = readl(mmio + HOST_IRQ_STAT);
1627 		spin_unlock(&host->lock);
1628 	} while (irq_stat);
1629 
1630 	return IRQ_RETVAL(handled);
1631 }
1632 #endif
1633 
ahci_remap_check(struct pci_dev * pdev,int bar,struct ahci_host_priv * hpriv)1634 static void ahci_remap_check(struct pci_dev *pdev, int bar,
1635 		struct ahci_host_priv *hpriv)
1636 {
1637 	int i;
1638 	u32 cap;
1639 
1640 	/*
1641 	 * Check if this device might have remapped nvme devices.
1642 	 */
1643 	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1644 	    pci_resource_len(pdev, bar) < SZ_512K ||
1645 	    bar != AHCI_PCI_BAR_STANDARD ||
1646 	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1647 		return;
1648 
1649 	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1650 	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1651 		if ((cap & (1 << i)) == 0)
1652 			continue;
1653 		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1654 				!= PCI_CLASS_STORAGE_EXPRESS)
1655 			continue;
1656 
1657 		/* We've found a remapped device */
1658 		hpriv->remapped_nvme++;
1659 	}
1660 
1661 	if (!hpriv->remapped_nvme)
1662 		return;
1663 
1664 	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1665 		 hpriv->remapped_nvme);
1666 	dev_warn(&pdev->dev,
1667 		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1668 
1669 	/*
1670 	 * Don't rely on the msi-x capability in the remap case,
1671 	 * share the legacy interrupt across ahci and remapped devices.
1672 	 */
1673 	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1674 }
1675 
ahci_get_irq_vector(struct ata_host * host,int port)1676 static int ahci_get_irq_vector(struct ata_host *host, int port)
1677 {
1678 	return pci_irq_vector(to_pci_dev(host->dev), port);
1679 }
1680 
ahci_init_msi(struct pci_dev * pdev,unsigned int n_ports,struct ahci_host_priv * hpriv)1681 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1682 			struct ahci_host_priv *hpriv)
1683 {
1684 	int nvec;
1685 
1686 	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1687 		return -ENODEV;
1688 
1689 	/*
1690 	 * If number of MSIs is less than number of ports then Sharing Last
1691 	 * Message mode could be enforced. In this case assume that advantage
1692 	 * of multipe MSIs is negated and use single MSI mode instead.
1693 	 */
1694 	if (n_ports > 1) {
1695 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1696 				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1697 		if (nvec > 0) {
1698 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1699 				hpriv->get_irq_vector = ahci_get_irq_vector;
1700 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1701 				return nvec;
1702 			}
1703 
1704 			/*
1705 			 * Fallback to single MSI mode if the controller
1706 			 * enforced MRSM mode.
1707 			 */
1708 			printk(KERN_INFO
1709 				"ahci: MRSM is on, fallback to single MSI\n");
1710 			pci_free_irq_vectors(pdev);
1711 		}
1712 	}
1713 
1714 	/*
1715 	 * If the host is not capable of supporting per-port vectors, fall
1716 	 * back to single MSI before finally attempting single MSI-X.
1717 	 */
1718 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1719 	if (nvec == 1)
1720 		return nvec;
1721 	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1722 }
1723 
ahci_update_initial_lpm_policy(struct ata_port * ap,struct ahci_host_priv * hpriv)1724 static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1725 					   struct ahci_host_priv *hpriv)
1726 {
1727 	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1728 
1729 
1730 	/* Ignore processing for chipsets that don't use policy */
1731 	if (!(hpriv->flags & AHCI_HFLAG_USE_LPM_POLICY))
1732 		return;
1733 
1734 	/* user modified policy via module param */
1735 	if (mobile_lpm_policy != -1) {
1736 		policy = mobile_lpm_policy;
1737 		goto update_policy;
1738 	}
1739 
1740 	if (policy > ATA_LPM_MED_POWER && pm_suspend_default_s2idle()) {
1741 		if (hpriv->cap & HOST_CAP_PART)
1742 			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1743 		else if (hpriv->cap & HOST_CAP_SSC)
1744 			policy = ATA_LPM_MIN_POWER;
1745 	}
1746 
1747 update_policy:
1748 	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1749 		ap->target_lpm_policy = policy;
1750 }
1751 
ahci_intel_pcs_quirk(struct pci_dev * pdev,struct ahci_host_priv * hpriv)1752 static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1753 {
1754 	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1755 	u16 tmp16;
1756 
1757 	/*
1758 	 * Only apply the 6-port PCS quirk for known legacy platforms.
1759 	 */
1760 	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1761 		return;
1762 
1763 	/* Skip applying the quirk on Denverton and beyond */
1764 	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1765 		return;
1766 
1767 	/*
1768 	 * port_map is determined from PORTS_IMPL PCI register which is
1769 	 * implemented as write or write-once register.  If the register
1770 	 * isn't programmed, ahci automatically generates it from number
1771 	 * of ports, which is good enough for PCS programming. It is
1772 	 * otherwise expected that platform firmware enables the ports
1773 	 * before the OS boots.
1774 	 */
1775 	pci_read_config_word(pdev, PCS_6, &tmp16);
1776 	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1777 		tmp16 |= hpriv->port_map;
1778 		pci_write_config_word(pdev, PCS_6, tmp16);
1779 	}
1780 }
1781 
remapped_nvme_show(struct device * dev,struct device_attribute * attr,char * buf)1782 static ssize_t remapped_nvme_show(struct device *dev,
1783 				  struct device_attribute *attr,
1784 				  char *buf)
1785 {
1786 	struct ata_host *host = dev_get_drvdata(dev);
1787 	struct ahci_host_priv *hpriv = host->private_data;
1788 
1789 	return sysfs_emit(buf, "%u\n", hpriv->remapped_nvme);
1790 }
1791 
1792 static DEVICE_ATTR_RO(remapped_nvme);
1793 
ahci_init_one(struct pci_dev * pdev,const struct pci_device_id * ent)1794 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1795 {
1796 	unsigned int board_id = ent->driver_data;
1797 	struct ata_port_info pi = ahci_port_info[board_id];
1798 	const struct ata_port_info *ppi[] = { &pi, NULL };
1799 	struct device *dev = &pdev->dev;
1800 	struct ahci_host_priv *hpriv;
1801 	struct ata_host *host;
1802 	int n_ports, i, rc;
1803 	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1804 
1805 	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1806 
1807 	ata_print_version_once(&pdev->dev, DRV_VERSION);
1808 
1809 	/* The AHCI driver can only drive the SATA ports, the PATA driver
1810 	   can drive them all so if both drivers are selected make sure
1811 	   AHCI stays out of the way */
1812 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1813 		return -ENODEV;
1814 
1815 	/* Apple BIOS on MCP89 prevents us using AHCI */
1816 	if (is_mcp89_apple(pdev))
1817 		ahci_mcp89_apple_enable(pdev);
1818 
1819 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1820 	 * At the moment, we can only use the AHCI mode. Let the users know
1821 	 * that for SAS drives they're out of luck.
1822 	 */
1823 	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1824 		dev_info(&pdev->dev,
1825 			 "PDC42819 can only drive SATA devices with this driver\n");
1826 
1827 	/* Some devices use non-standard BARs */
1828 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1829 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1830 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1831 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1832 	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1833 		if (pdev->device == 0xa01c)
1834 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1835 		if (pdev->device == 0xa084)
1836 			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1837 	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1838 		if (pdev->device == 0x7a08)
1839 			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1840 	}
1841 
1842 	/* acquire resources */
1843 	rc = pcim_enable_device(pdev);
1844 	if (rc)
1845 		return rc;
1846 
1847 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1848 	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1849 		u8 map;
1850 
1851 		/* ICH6s share the same PCI ID for both piix and ahci
1852 		 * modes.  Enabling ahci mode while MAP indicates
1853 		 * combined mode is a bad idea.  Yield to ata_piix.
1854 		 */
1855 		pci_read_config_byte(pdev, ICH_MAP, &map);
1856 		if (map & 0x3) {
1857 			dev_info(&pdev->dev,
1858 				 "controller is in combined mode, can't enable AHCI mode\n");
1859 			return -ENODEV;
1860 		}
1861 	}
1862 
1863 	/* AHCI controllers often implement SFF compatible interface.
1864 	 * Grab all PCI BARs just in case.
1865 	 */
1866 	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1867 	if (rc == -EBUSY)
1868 		pcim_pin_device(pdev);
1869 	if (rc)
1870 		return rc;
1871 
1872 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1873 	if (!hpriv)
1874 		return -ENOMEM;
1875 	hpriv->flags |= (unsigned long)pi.private_data;
1876 
1877 	/* MCP65 revision A1 and A2 can't do MSI */
1878 	if (board_id == board_ahci_mcp65 &&
1879 	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1880 		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1881 
1882 	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1883 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1884 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1885 
1886 	/* only some SB600s can do 64bit DMA */
1887 	if (ahci_sb600_enable_64bit(pdev))
1888 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1889 
1890 	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1891 
1892 	/* detect remapped nvme devices */
1893 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1894 
1895 	sysfs_add_file_to_group(&pdev->dev.kobj,
1896 				&dev_attr_remapped_nvme.attr,
1897 				NULL);
1898 
1899 	/* must set flag prior to save config in order to take effect */
1900 	if (ahci_broken_devslp(pdev))
1901 		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1902 
1903 #ifdef CONFIG_ARM64
1904 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1905 	    pdev->device == 0xa235 &&
1906 	    pdev->revision < 0x30)
1907 		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1908 
1909 	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1910 		hpriv->irq_handler = ahci_thunderx_irq_handler;
1911 #endif
1912 
1913 	/* save initial config */
1914 	ahci_pci_save_initial_config(pdev, hpriv);
1915 
1916 	/* prepare host */
1917 	if (hpriv->cap & HOST_CAP_NCQ) {
1918 		pi.flags |= ATA_FLAG_NCQ;
1919 		/*
1920 		 * Auto-activate optimization is supposed to be
1921 		 * supported on all AHCI controllers indicating NCQ
1922 		 * capability, but it seems to be broken on some
1923 		 * chipsets including NVIDIAs.
1924 		 */
1925 		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1926 			pi.flags |= ATA_FLAG_FPDMA_AA;
1927 
1928 		/*
1929 		 * All AHCI controllers should be forward-compatible
1930 		 * with the new auxiliary field. This code should be
1931 		 * conditionalized if any buggy AHCI controllers are
1932 		 * encountered.
1933 		 */
1934 		pi.flags |= ATA_FLAG_FPDMA_AUX;
1935 	}
1936 
1937 	if (hpriv->cap & HOST_CAP_PMP)
1938 		pi.flags |= ATA_FLAG_PMP;
1939 
1940 	ahci_set_em_messages(hpriv, &pi);
1941 
1942 	if (ahci_broken_system_poweroff(pdev)) {
1943 		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1944 		dev_info(&pdev->dev,
1945 			"quirky BIOS, skipping spindown on poweroff\n");
1946 	}
1947 
1948 	if (ahci_broken_lpm(pdev)) {
1949 		pi.flags |= ATA_FLAG_NO_LPM;
1950 		dev_warn(&pdev->dev,
1951 			 "BIOS update required for Link Power Management support\n");
1952 	}
1953 
1954 	if (ahci_broken_suspend(pdev)) {
1955 		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1956 		dev_warn(&pdev->dev,
1957 			 "BIOS update required for suspend/resume\n");
1958 	}
1959 
1960 	if (ahci_broken_online(pdev)) {
1961 		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1962 		dev_info(&pdev->dev,
1963 			 "online status unreliable, applying workaround\n");
1964 	}
1965 
1966 
1967 	/* Acer SA5-271 workaround modifies private_data */
1968 	acer_sa5_271_workaround(hpriv, pdev);
1969 
1970 	/* CAP.NP sometimes indicate the index of the last enabled
1971 	 * port, at other times, that of the last possible port, so
1972 	 * determining the maximum port number requires looking at
1973 	 * both CAP.NP and port_map.
1974 	 */
1975 	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1976 
1977 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1978 	if (!host) {
1979 		rc = -ENOMEM;
1980 		goto err_rm_sysfs_file;
1981 	}
1982 	host->private_data = hpriv;
1983 
1984 	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1985 		/* legacy intx interrupts */
1986 		pci_intx(pdev, 1);
1987 	}
1988 	hpriv->irq = pci_irq_vector(pdev, 0);
1989 
1990 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1991 		host->flags |= ATA_HOST_PARALLEL_SCAN;
1992 	else
1993 		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1994 
1995 	if (!(hpriv->cap & HOST_CAP_PART))
1996 		host->flags |= ATA_HOST_NO_PART;
1997 
1998 	if (!(hpriv->cap & HOST_CAP_SSC))
1999 		host->flags |= ATA_HOST_NO_SSC;
2000 
2001 	if (!(hpriv->cap2 & HOST_CAP2_SDS))
2002 		host->flags |= ATA_HOST_NO_DEVSLP;
2003 
2004 	if (pi.flags & ATA_FLAG_EM)
2005 		ahci_reset_em(host);
2006 
2007 	for (i = 0; i < host->n_ports; i++) {
2008 		struct ata_port *ap = host->ports[i];
2009 
2010 		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
2011 		ata_port_pbar_desc(ap, ahci_pci_bar,
2012 				   0x100 + ap->port_no * 0x80, "port");
2013 
2014 		/* set enclosure management message type */
2015 		if (ap->flags & ATA_FLAG_EM)
2016 			ap->em_message_type = hpriv->em_msg_type;
2017 
2018 		ahci_update_initial_lpm_policy(ap, hpriv);
2019 
2020 		/* disabled/not-implemented port */
2021 		if (!(hpriv->port_map & (1 << i)))
2022 			ap->ops = &ata_dummy_port_ops;
2023 	}
2024 
2025 	/* apply workaround for ASUS P5W DH Deluxe mainboard */
2026 	ahci_p5wdh_workaround(host);
2027 
2028 	/* apply gtf filter quirk */
2029 	ahci_gtf_filter_workaround(host);
2030 
2031 	/* initialize adapter */
2032 	rc = ahci_configure_dma_masks(pdev, hpriv);
2033 	if (rc)
2034 		goto err_rm_sysfs_file;
2035 
2036 	rc = ahci_pci_reset_controller(host);
2037 	if (rc)
2038 		goto err_rm_sysfs_file;
2039 
2040 	ahci_pci_init_controller(host);
2041 	ahci_pci_print_info(host);
2042 
2043 	pci_set_master(pdev);
2044 
2045 	rc = ahci_host_activate(host, &ahci_sht);
2046 	if (rc)
2047 		goto err_rm_sysfs_file;
2048 
2049 	pm_runtime_put_noidle(&pdev->dev);
2050 	return 0;
2051 
2052 err_rm_sysfs_file:
2053 	sysfs_remove_file_from_group(&pdev->dev.kobj,
2054 				     &dev_attr_remapped_nvme.attr, NULL);
2055 	return rc;
2056 }
2057 
ahci_shutdown_one(struct pci_dev * pdev)2058 static void ahci_shutdown_one(struct pci_dev *pdev)
2059 {
2060 	ata_pci_shutdown_one(pdev);
2061 }
2062 
ahci_remove_one(struct pci_dev * pdev)2063 static void ahci_remove_one(struct pci_dev *pdev)
2064 {
2065 	sysfs_remove_file_from_group(&pdev->dev.kobj,
2066 				     &dev_attr_remapped_nvme.attr,
2067 				     NULL);
2068 	pm_runtime_get_noresume(&pdev->dev);
2069 	ata_pci_remove_one(pdev);
2070 }
2071 
2072 module_pci_driver(ahci_pci_driver);
2073 
2074 MODULE_AUTHOR("Jeff Garzik");
2075 MODULE_DESCRIPTION("AHCI SATA low-level driver");
2076 MODULE_LICENSE("GPL");
2077 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
2078 MODULE_VERSION(DRV_VERSION);
2079