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Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
[linux/fpc-iii.git] / drivers / ata / ahci.c
blob7e62751abfacce2aaca99c7b08834f2464b46498
1 /*
2 * ahci.c - AHCI SATA support
3 *
4 * Maintained by: Tejun Heo <tj@kernel.org>
5 * Please ALWAYS copy linux-ide@vger.kernel.org
6 * on emails.
7 *
8 * Copyright 2004-2005 Red Hat, Inc.
9 *
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 *
26 * libata documentation is available via 'make {ps|pdf}docs',
27 * as Documentation/DocBook/libata.*
28 *
29 * AHCI hardware documentation:
30 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
31 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
32 *
33 */
34
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/pci.h>
38 #include <linux/blkdev.h>
39 #include <linux/delay.h>
40 #include <linux/interrupt.h>
41 #include <linux/dma-mapping.h>
42 #include <linux/device.h>
43 #include <linux/dmi.h>
44 #include <linux/gfp.h>
45 #include <linux/msi.h>
46 #include <scsi/scsi_host.h>
47 #include <scsi/scsi_cmnd.h>
48 #include <linux/libata.h>
49 #include "ahci.h"
50
51 #define DRV_NAME "ahci"
52 #define DRV_VERSION "3.0"
53
54 enum {
55 AHCI_PCI_BAR_STA2X11 = 0,
56 AHCI_PCI_BAR_CAVIUM = 0,
57 AHCI_PCI_BAR_ENMOTUS = 2,
58 AHCI_PCI_BAR_STANDARD = 5,
59 };
60
61 enum board_ids {
62 /* board IDs by feature in alphabetical order */
63 board_ahci,
64 board_ahci_ign_iferr,
65 board_ahci_nomsi,
66 board_ahci_noncq,
67 board_ahci_nosntf,
68 board_ahci_yes_fbs,
69
70 /* board IDs for specific chipsets in alphabetical order */
71 board_ahci_avn,
72 board_ahci_mcp65,
73 board_ahci_mcp77,
74 board_ahci_mcp89,
75 board_ahci_mv,
76 board_ahci_sb600,
77 board_ahci_sb700, /* for SB700 and SB800 */
78 board_ahci_vt8251,
79
80 /* aliases */
81 board_ahci_mcp_linux = board_ahci_mcp65,
82 board_ahci_mcp67 = board_ahci_mcp65,
83 board_ahci_mcp73 = board_ahci_mcp65,
84 board_ahci_mcp79 = board_ahci_mcp77,
85 };
86
87 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
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_suspend(struct pci_dev *pdev, pm_message_t mesg);
98 static int ahci_pci_device_resume(struct pci_dev *pdev);
99 #endif
100
101 static struct scsi_host_template ahci_sht = {
102 AHCI_SHT("ahci"),
103 };
104
105 static struct ata_port_operations ahci_vt8251_ops = {
106 .inherits = &ahci_ops,
107 .hardreset = ahci_vt8251_hardreset,
108 };
109
110 static struct ata_port_operations ahci_p5wdh_ops = {
111 .inherits = &ahci_ops,
112 .hardreset = ahci_p5wdh_hardreset,
113 };
114
115 static struct ata_port_operations ahci_avn_ops = {
116 .inherits = &ahci_ops,
117 .hardreset = ahci_avn_hardreset,
118 };
119
120 static const struct ata_port_info ahci_port_info[] = {
121 /* by features */
122 [board_ahci] = {
123 .flags = AHCI_FLAG_COMMON,
124 .pio_mask = ATA_PIO4,
125 .udma_mask = ATA_UDMA6,
126 .port_ops = &ahci_ops,
127 },
128 [board_ahci_ign_iferr] = {
129 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
130 .flags = AHCI_FLAG_COMMON,
131 .pio_mask = ATA_PIO4,
132 .udma_mask = ATA_UDMA6,
133 .port_ops = &ahci_ops,
134 },
135 [board_ahci_nomsi] = {
136 AHCI_HFLAGS (AHCI_HFLAG_NO_MSI),
137 .flags = AHCI_FLAG_COMMON,
138 .pio_mask = ATA_PIO4,
139 .udma_mask = ATA_UDMA6,
140 .port_ops = &ahci_ops,
141 },
142 [board_ahci_noncq] = {
143 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ),
144 .flags = AHCI_FLAG_COMMON,
145 .pio_mask = ATA_PIO4,
146 .udma_mask = ATA_UDMA6,
147 .port_ops = &ahci_ops,
148 },
149 [board_ahci_nosntf] = {
150 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
151 .flags = AHCI_FLAG_COMMON,
152 .pio_mask = ATA_PIO4,
153 .udma_mask = ATA_UDMA6,
154 .port_ops = &ahci_ops,
155 },
156 [board_ahci_yes_fbs] = {
157 AHCI_HFLAGS (AHCI_HFLAG_YES_FBS),
158 .flags = AHCI_FLAG_COMMON,
159 .pio_mask = ATA_PIO4,
160 .udma_mask = ATA_UDMA6,
161 .port_ops = &ahci_ops,
162 },
163 /* by chipsets */
164 [board_ahci_avn] = {
165 .flags = AHCI_FLAG_COMMON,
166 .pio_mask = ATA_PIO4,
167 .udma_mask = ATA_UDMA6,
168 .port_ops = &ahci_avn_ops,
169 },
170 [board_ahci_mcp65] = {
171 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
172 AHCI_HFLAG_YES_NCQ),
173 .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
174 .pio_mask = ATA_PIO4,
175 .udma_mask = ATA_UDMA6,
176 .port_ops = &ahci_ops,
177 },
178 [board_ahci_mcp77] = {
179 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
180 .flags = AHCI_FLAG_COMMON,
181 .pio_mask = ATA_PIO4,
182 .udma_mask = ATA_UDMA6,
183 .port_ops = &ahci_ops,
184 },
185 [board_ahci_mcp89] = {
186 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
187 .flags = AHCI_FLAG_COMMON,
188 .pio_mask = ATA_PIO4,
189 .udma_mask = ATA_UDMA6,
190 .port_ops = &ahci_ops,
191 },
192 [board_ahci_mv] = {
193 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
194 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
195 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
196 .pio_mask = ATA_PIO4,
197 .udma_mask = ATA_UDMA6,
198 .port_ops = &ahci_ops,
199 },
200 [board_ahci_sb600] = {
201 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
202 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
203 AHCI_HFLAG_32BIT_ONLY),
204 .flags = AHCI_FLAG_COMMON,
205 .pio_mask = ATA_PIO4,
206 .udma_mask = ATA_UDMA6,
207 .port_ops = &ahci_pmp_retry_srst_ops,
208 },
209 [board_ahci_sb700] = { /* for SB700 and SB800 */
210 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
211 .flags = AHCI_FLAG_COMMON,
212 .pio_mask = ATA_PIO4,
213 .udma_mask = ATA_UDMA6,
214 .port_ops = &ahci_pmp_retry_srst_ops,
215 },
216 [board_ahci_vt8251] = {
217 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
218 .flags = AHCI_FLAG_COMMON,
219 .pio_mask = ATA_PIO4,
220 .udma_mask = ATA_UDMA6,
221 .port_ops = &ahci_vt8251_ops,
222 },
223 };
224
225 static const struct pci_device_id ahci_pci_tbl[] = {
226 /* Intel */
227 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
228 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
229 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
230 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
231 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
232 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
233 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
234 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
235 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
236 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
237 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
238 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
239 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
240 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
241 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
242 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
243 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
244 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
245 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
246 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
247 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
248 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
249 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
250 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
251 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
252 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
253 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
254 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
255 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
256 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
257 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
258 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
259 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
260 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
261 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
262 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
263 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
264 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
265 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
266 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
267 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
268 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
269 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
270 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
271 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
272 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
273 { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
274 { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
275 { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
276 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
277 { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
278 { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
279 { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
280 { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
281 { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
282 { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
283 { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
284 { PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
285 { PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
286 { PCI_VDEVICE(INTEL, 0x8c03), board_ahci }, /* Lynx Point AHCI */
287 { PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
288 { PCI_VDEVICE(INTEL, 0x8c05), board_ahci }, /* Lynx Point RAID */
289 { PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
290 { PCI_VDEVICE(INTEL, 0x8c07), board_ahci }, /* Lynx Point RAID */
291 { PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
292 { PCI_VDEVICE(INTEL, 0x8c0f), board_ahci }, /* Lynx Point RAID */
293 { PCI_VDEVICE(INTEL, 0x9c02), board_ahci }, /* Lynx Point-LP AHCI */
294 { PCI_VDEVICE(INTEL, 0x9c03), board_ahci }, /* Lynx Point-LP AHCI */
295 { PCI_VDEVICE(INTEL, 0x9c04), board_ahci }, /* Lynx Point-LP RAID */
296 { PCI_VDEVICE(INTEL, 0x9c05), board_ahci }, /* Lynx Point-LP RAID */
297 { PCI_VDEVICE(INTEL, 0x9c06), board_ahci }, /* Lynx Point-LP RAID */
298 { PCI_VDEVICE(INTEL, 0x9c07), board_ahci }, /* Lynx Point-LP RAID */
299 { PCI_VDEVICE(INTEL, 0x9c0e), board_ahci }, /* Lynx Point-LP RAID */
300 { PCI_VDEVICE(INTEL, 0x9c0f), board_ahci }, /* Lynx Point-LP RAID */
301 { PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
302 { PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
303 { PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
304 { PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
305 { PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
306 { PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
307 { PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
308 { PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
309 { PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
310 { PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
311 { PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
312 { PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
313 { PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
314 { PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
315 { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
316 { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
317 { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
318 { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
319 { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
320 { PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
321 { PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
322 { PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
323 { PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
324 { PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
325 { PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
326 { PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
327 { PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
328 { PCI_VDEVICE(INTEL, 0x9c83), board_ahci }, /* Wildcat Point-LP AHCI */
329 { PCI_VDEVICE(INTEL, 0x9c85), board_ahci }, /* Wildcat Point-LP RAID */
330 { PCI_VDEVICE(INTEL, 0x9c87), board_ahci }, /* Wildcat Point-LP RAID */
331 { PCI_VDEVICE(INTEL, 0x9c8f), board_ahci }, /* Wildcat Point-LP RAID */
332 { PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
333 { PCI_VDEVICE(INTEL, 0x8c83), board_ahci }, /* 9 Series AHCI */
334 { PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
335 { PCI_VDEVICE(INTEL, 0x8c85), board_ahci }, /* 9 Series RAID */
336 { PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
337 { PCI_VDEVICE(INTEL, 0x8c87), board_ahci }, /* 9 Series RAID */
338 { PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
339 { PCI_VDEVICE(INTEL, 0x8c8f), board_ahci }, /* 9 Series RAID */
340 { PCI_VDEVICE(INTEL, 0x9d03), board_ahci }, /* Sunrise Point-LP AHCI */
341 { PCI_VDEVICE(INTEL, 0x9d05), board_ahci }, /* Sunrise Point-LP RAID */
342 { PCI_VDEVICE(INTEL, 0x9d07), board_ahci }, /* Sunrise Point-LP RAID */
343 { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */
344 { PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
345 { PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */
346 { PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
347
348 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
349 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
350 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
351 /* JMicron 362B and 362C have an AHCI function with IDE class code */
352 { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
353 { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
354
355 /* ATI */
356 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
357 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
358 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
359 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
360 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
361 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
362 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
363
364 /* AMD */
365 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
366 { PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
367 /* AMD is using RAID class only for ahci controllers */
368 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
369 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
370
371 /* VIA */
372 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
373 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
374
375 /* NVIDIA */
376 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
377 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
378 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
379 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
380 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
381 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
382 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
383 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
384 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
385 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
386 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
387 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
388 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
389 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
390 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
391 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
392 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
393 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
394 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
395 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
396 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
397 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
398 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
399 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
400 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
401 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
402 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
403 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
404 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
405 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
406 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
407 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
408 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
409 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
410 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
411 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
412 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
413 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
414 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
415 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
416 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
417 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
418 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
419 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
420 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
421 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
422 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
423 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
424 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
425 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
426 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
427 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
428 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
429 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
430 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
431 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
432 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
433 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
434 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
435 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
436 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
437 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
438 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
439 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
440 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
441 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
442 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
443 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
444 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
445 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
446 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
447 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
448 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
449 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
450 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
451 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
452 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
453 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
454 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
455 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
456 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
457 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
458 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
459 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
460
461 /* SiS */
462 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
463 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
464 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
465
466 /* ST Microelectronics */
467 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
468
469 /* Marvell */
470 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
471 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
472 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
473 .class = PCI_CLASS_STORAGE_SATA_AHCI,
474 .class_mask = 0xffffff,
475 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
476 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
477 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
478 { PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
479 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
480 .driver_data = board_ahci_yes_fbs }, /* 88se9170 */
481 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
482 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
483 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
484 .driver_data = board_ahci_yes_fbs }, /* 88se9182 */
485 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
486 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
487 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
488 .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
489 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
490 .driver_data = board_ahci_yes_fbs },
491 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
492 .driver_data = board_ahci_yes_fbs },
493 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
494 .driver_data = board_ahci_yes_fbs },
495 { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
496 .driver_data = board_ahci_yes_fbs },
497
498 /* Promise */
499 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
500 { PCI_VDEVICE(PROMISE, 0x3781), board_ahci }, /* FastTrak TX8660 ahci-mode */
501
502 /* Asmedia */
503 { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
504 { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
505 { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
506 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
507
508 /*
509 * Samsung SSDs found on some macbooks. NCQ times out if MSI is
510 * enabled. https://bugzilla.kernel.org/show_bug.cgi?id=60731
511 */
512 { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
513 { PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
514
515 /* Enmotus */
516 { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
517
518 /* Generic, PCI class code for AHCI */
519 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
520 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
521
522 { } /* terminate list */
523 };
524
525
526 static struct pci_driver ahci_pci_driver = {
527 .name = DRV_NAME,
528 .id_table = ahci_pci_tbl,
529 .probe = ahci_init_one,
530 .remove = ata_pci_remove_one,
531 #ifdef CONFIG_PM
532 .suspend = ahci_pci_device_suspend,
533 .resume = ahci_pci_device_resume,
534 #endif
535 };
536
537 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
538 static int marvell_enable;
539 #else
540 static int marvell_enable = 1;
541 #endif
542 module_param(marvell_enable, int, 0644);
543 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
544
545
546 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
547 struct ahci_host_priv *hpriv)
548 {
549 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
550 dev_info(&pdev->dev, "JMB361 has only one port\n");
551 hpriv->force_port_map = 1;
552 }
553
554 /*
555 * Temporary Marvell 6145 hack: PATA port presence
556 * is asserted through the standard AHCI port
557 * presence register, as bit 4 (counting from 0)
558 */
559 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
560 if (pdev->device == 0x6121)
561 hpriv->mask_port_map = 0x3;
562 else
563 hpriv->mask_port_map = 0xf;
564 dev_info(&pdev->dev,
565 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
566 }
567
568 ahci_save_initial_config(&pdev->dev, hpriv);
569 }
570
571 static int ahci_pci_reset_controller(struct ata_host *host)
572 {
573 struct pci_dev *pdev = to_pci_dev(host->dev);
574
575 ahci_reset_controller(host);
576
577 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
578 struct ahci_host_priv *hpriv = host->private_data;
579 u16 tmp16;
580
581 /* configure PCS */
582 pci_read_config_word(pdev, 0x92, &tmp16);
583 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
584 tmp16 |= hpriv->port_map;
585 pci_write_config_word(pdev, 0x92, tmp16);
586 }
587 }
588
589 return 0;
590 }
591
592 static void ahci_pci_init_controller(struct ata_host *host)
593 {
594 struct ahci_host_priv *hpriv = host->private_data;
595 struct pci_dev *pdev = to_pci_dev(host->dev);
596 void __iomem *port_mmio;
597 u32 tmp;
598 int mv;
599
600 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
601 if (pdev->device == 0x6121)
602 mv = 2;
603 else
604 mv = 4;
605 port_mmio = __ahci_port_base(host, mv);
606
607 writel(0, port_mmio + PORT_IRQ_MASK);
608
609 /* clear port IRQ */
610 tmp = readl(port_mmio + PORT_IRQ_STAT);
611 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
612 if (tmp)
613 writel(tmp, port_mmio + PORT_IRQ_STAT);
614 }
615
616 ahci_init_controller(host);
617 }
618
619 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
620 unsigned long deadline)
621 {
622 struct ata_port *ap = link->ap;
623 struct ahci_host_priv *hpriv = ap->host->private_data;
624 bool online;
625 int rc;
626
627 DPRINTK("ENTER\n");
628
629 ahci_stop_engine(ap);
630
631 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
632 deadline, &online, NULL);
633
634 hpriv->start_engine(ap);
635
636 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
637
638 /* vt8251 doesn't clear BSY on signature FIS reception,
639 * request follow-up softreset.
640 */
641 return online ? -EAGAIN : rc;
642 }
643
644 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
645 unsigned long deadline)
646 {
647 struct ata_port *ap = link->ap;
648 struct ahci_port_priv *pp = ap->private_data;
649 struct ahci_host_priv *hpriv = ap->host->private_data;
650 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
651 struct ata_taskfile tf;
652 bool online;
653 int rc;
654
655 ahci_stop_engine(ap);
656
657 /* clear D2H reception area to properly wait for D2H FIS */
658 ata_tf_init(link->device, &tf);
659 tf.command = ATA_BUSY;
660 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
661
662 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
663 deadline, &online, NULL);
664
665 hpriv->start_engine(ap);
666
667 /* The pseudo configuration device on SIMG4726 attached to
668 * ASUS P5W-DH Deluxe doesn't send signature FIS after
669 * hardreset if no device is attached to the first downstream
670 * port && the pseudo device locks up on SRST w/ PMP==0. To
671 * work around this, wait for !BSY only briefly. If BSY isn't
672 * cleared, perform CLO and proceed to IDENTIFY (achieved by
673 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
674 *
675 * Wait for two seconds. Devices attached to downstream port
676 * which can't process the following IDENTIFY after this will
677 * have to be reset again. For most cases, this should
678 * suffice while making probing snappish enough.
679 */
680 if (online) {
681 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
682 ahci_check_ready);
683 if (rc)
684 ahci_kick_engine(ap);
685 }
686 return rc;
687 }
688
689 /*
690 * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
691 *
692 * It has been observed with some SSDs that the timing of events in the
693 * link synchronization phase can leave the port in a state that can not
694 * be recovered by a SATA-hard-reset alone. The failing signature is
695 * SStatus.DET stuck at 1 ("Device presence detected but Phy
696 * communication not established"). It was found that unloading and
697 * reloading the driver when this problem occurs allows the drive
698 * connection to be recovered (DET advanced to 0x3). The critical
699 * component of reloading the driver is that the port state machines are
700 * reset by bouncing "port enable" in the AHCI PCS configuration
701 * register. So, reproduce that effect by bouncing a port whenever we
702 * see DET==1 after a reset.
703 */
704 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
705 unsigned long deadline)
706 {
707 const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
708 struct ata_port *ap = link->ap;
709 struct ahci_port_priv *pp = ap->private_data;
710 struct ahci_host_priv *hpriv = ap->host->private_data;
711 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
712 unsigned long tmo = deadline - jiffies;
713 struct ata_taskfile tf;
714 bool online;
715 int rc, i;
716
717 DPRINTK("ENTER\n");
718
719 ahci_stop_engine(ap);
720
721 for (i = 0; i < 2; i++) {
722 u16 val;
723 u32 sstatus;
724 int port = ap->port_no;
725 struct ata_host *host = ap->host;
726 struct pci_dev *pdev = to_pci_dev(host->dev);
727
728 /* clear D2H reception area to properly wait for D2H FIS */
729 ata_tf_init(link->device, &tf);
730 tf.command = ATA_BUSY;
731 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
732
733 rc = sata_link_hardreset(link, timing, deadline, &online,
734 ahci_check_ready);
735
736 if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
737 (sstatus & 0xf) != 1)
738 break;
739
740 ata_link_printk(link, KERN_INFO, "avn bounce port%d\n",
741 port);
742
743 pci_read_config_word(pdev, 0x92, &val);
744 val &= ~(1 << port);
745 pci_write_config_word(pdev, 0x92, val);
746 ata_msleep(ap, 1000);
747 val |= 1 << port;
748 pci_write_config_word(pdev, 0x92, val);
749 deadline += tmo;
750 }
751
752 hpriv->start_engine(ap);
753
754 if (online)
755 *class = ahci_dev_classify(ap);
756
757 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
758 return rc;
759 }
760
761
762 #ifdef CONFIG_PM
763 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
764 {
765 struct ata_host *host = pci_get_drvdata(pdev);
766 struct ahci_host_priv *hpriv = host->private_data;
767 void __iomem *mmio = hpriv->mmio;
768 u32 ctl;
769
770 if (mesg.event & PM_EVENT_SUSPEND &&
771 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
772 dev_err(&pdev->dev,
773 "BIOS update required for suspend/resume\n");
774 return -EIO;
775 }
776
777 if (mesg.event & PM_EVENT_SLEEP) {
778 /* AHCI spec rev1.1 section 8.3.3:
779 * Software must disable interrupts prior to requesting a
780 * transition of the HBA to D3 state.
781 */
782 ctl = readl(mmio + HOST_CTL);
783 ctl &= ~HOST_IRQ_EN;
784 writel(ctl, mmio + HOST_CTL);
785 readl(mmio + HOST_CTL); /* flush */
786 }
787
788 return ata_pci_device_suspend(pdev, mesg);
789 }
790
791 static int ahci_pci_device_resume(struct pci_dev *pdev)
792 {
793 struct ata_host *host = pci_get_drvdata(pdev);
794 int rc;
795
796 rc = ata_pci_device_do_resume(pdev);
797 if (rc)
798 return rc;
799
800 /* Apple BIOS helpfully mangles the registers on resume */
801 if (is_mcp89_apple(pdev))
802 ahci_mcp89_apple_enable(pdev);
803
804 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
805 rc = ahci_pci_reset_controller(host);
806 if (rc)
807 return rc;
808
809 ahci_pci_init_controller(host);
810 }
811
812 ata_host_resume(host);
813
814 return 0;
815 }
816 #endif
817
818 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
819 {
820 int rc;
821
822 /*
823 * If the device fixup already set the dma_mask to some non-standard
824 * value, don't extend it here. This happens on STA2X11, for example.
825 */
826 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
827 return 0;
828
829 if (using_dac &&
830 !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
831 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
832 if (rc) {
833 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
834 if (rc) {
835 dev_err(&pdev->dev,
836 "64-bit DMA enable failed\n");
837 return rc;
838 }
839 }
840 } else {
841 rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
842 if (rc) {
843 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
844 return rc;
845 }
846 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
847 if (rc) {
848 dev_err(&pdev->dev,
849 "32-bit consistent DMA enable failed\n");
850 return rc;
851 }
852 }
853 return 0;
854 }
855
856 static void ahci_pci_print_info(struct ata_host *host)
857 {
858 struct pci_dev *pdev = to_pci_dev(host->dev);
859 u16 cc;
860 const char *scc_s;
861
862 pci_read_config_word(pdev, 0x0a, &cc);
863 if (cc == PCI_CLASS_STORAGE_IDE)
864 scc_s = "IDE";
865 else if (cc == PCI_CLASS_STORAGE_SATA)
866 scc_s = "SATA";
867 else if (cc == PCI_CLASS_STORAGE_RAID)
868 scc_s = "RAID";
869 else
870 scc_s = "unknown";
871
872 ahci_print_info(host, scc_s);
873 }
874
875 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
876 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
877 * support PMP and the 4726 either directly exports the device
878 * attached to the first downstream port or acts as a hardware storage
879 * controller and emulate a single ATA device (can be RAID 0/1 or some
880 * other configuration).
881 *
882 * When there's no device attached to the first downstream port of the
883 * 4726, "Config Disk" appears, which is a pseudo ATA device to
884 * configure the 4726. However, ATA emulation of the device is very
885 * lame. It doesn't send signature D2H Reg FIS after the initial
886 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
887 *
888 * The following function works around the problem by always using
889 * hardreset on the port and not depending on receiving signature FIS
890 * afterward. If signature FIS isn't received soon, ATA class is
891 * assumed without follow-up softreset.
892 */
893 static void ahci_p5wdh_workaround(struct ata_host *host)
894 {
895 static const struct dmi_system_id sysids[] = {
896 {
897 .ident = "P5W DH Deluxe",
898 .matches = {
899 DMI_MATCH(DMI_SYS_VENDOR,
900 "ASUSTEK COMPUTER INC"),
901 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
902 },
903 },
904 { }
905 };
906 struct pci_dev *pdev = to_pci_dev(host->dev);
907
908 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
909 dmi_check_system(sysids)) {
910 struct ata_port *ap = host->ports[1];
911
912 dev_info(&pdev->dev,
913 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
914
915 ap->ops = &ahci_p5wdh_ops;
916 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
917 }
918 }
919
920 /*
921 * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
922 * booting in BIOS compatibility mode. We restore the registers but not ID.
923 */
924 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
925 {
926 u32 val;
927
928 printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
929
930 pci_read_config_dword(pdev, 0xf8, &val);
931 val |= 1 << 0x1b;
932 /* the following changes the device ID, but appears not to affect function */
933 /* val = (val & ~0xf0000000) | 0x80000000; */
934 pci_write_config_dword(pdev, 0xf8, val);
935
936 pci_read_config_dword(pdev, 0x54c, &val);
937 val |= 1 << 0xc;
938 pci_write_config_dword(pdev, 0x54c, val);
939
940 pci_read_config_dword(pdev, 0x4a4, &val);
941 val &= 0xff;
942 val |= 0x01060100;
943 pci_write_config_dword(pdev, 0x4a4, val);
944
945 pci_read_config_dword(pdev, 0x54c, &val);
946 val &= ~(1 << 0xc);
947 pci_write_config_dword(pdev, 0x54c, val);
948
949 pci_read_config_dword(pdev, 0xf8, &val);
950 val &= ~(1 << 0x1b);
951 pci_write_config_dword(pdev, 0xf8, val);
952 }
953
954 static bool is_mcp89_apple(struct pci_dev *pdev)
955 {
956 return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
957 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
958 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
959 pdev->subsystem_device == 0xcb89;
960 }
961
962 /* only some SB600 ahci controllers can do 64bit DMA */
963 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
964 {
965 static const struct dmi_system_id sysids[] = {
966 /*
967 * The oldest version known to be broken is 0901 and
968 * working is 1501 which was released on 2007-10-26.
969 * Enable 64bit DMA on 1501 and anything newer.
970 *
971 * Please read bko#9412 for more info.
972 */
973 {
974 .ident = "ASUS M2A-VM",
975 .matches = {
976 DMI_MATCH(DMI_BOARD_VENDOR,
977 "ASUSTeK Computer INC."),
978 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
979 },
980 .driver_data = "20071026", /* yyyymmdd */
981 },
982 /*
983 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
984 * support 64bit DMA.
985 *
986 * BIOS versions earlier than 1.5 had the Manufacturer DMI
987 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
988 * This spelling mistake was fixed in BIOS version 1.5, so
989 * 1.5 and later have the Manufacturer as
990 * "MICRO-STAR INTERNATIONAL CO.,LTD".
991 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
992 *
993 * BIOS versions earlier than 1.9 had a Board Product Name
994 * DMI field of "MS-7376". This was changed to be
995 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
996 * match on DMI_BOARD_NAME of "MS-7376".
997 */
998 {
999 .ident = "MSI K9A2 Platinum",
1000 .matches = {
1001 DMI_MATCH(DMI_BOARD_VENDOR,
1002 "MICRO-STAR INTER"),
1003 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1004 },
1005 },
1006 /*
1007 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1008 * 64bit DMA.
1009 *
1010 * This board also had the typo mentioned above in the
1011 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1012 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1013 */
1014 {
1015 .ident = "MSI K9AGM2",
1016 .matches = {
1017 DMI_MATCH(DMI_BOARD_VENDOR,
1018 "MICRO-STAR INTER"),
1019 DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1020 },
1021 },
1022 /*
1023 * All BIOS versions for the Asus M3A support 64bit DMA.
1024 * (all release versions from 0301 to 1206 were tested)
1025 */
1026 {
1027 .ident = "ASUS M3A",
1028 .matches = {
1029 DMI_MATCH(DMI_BOARD_VENDOR,
1030 "ASUSTeK Computer INC."),
1031 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1032 },
1033 },
1034 { }
1035 };
1036 const struct dmi_system_id *match;
1037 int year, month, date;
1038 char buf[9];
1039
1040 match = dmi_first_match(sysids);
1041 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1042 !match)
1043 return false;
1044
1045 if (!match->driver_data)
1046 goto enable_64bit;
1047
1048 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1049 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1050
1051 if (strcmp(buf, match->driver_data) >= 0)
1052 goto enable_64bit;
1053 else {
1054 dev_warn(&pdev->dev,
1055 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1056 match->ident);
1057 return false;
1058 }
1059
1060 enable_64bit:
1061 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1062 return true;
1063 }
1064
1065 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1066 {
1067 static const struct dmi_system_id broken_systems[] = {
1068 {
1069 .ident = "HP Compaq nx6310",
1070 .matches = {
1071 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1072 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1073 },
1074 /* PCI slot number of the controller */
1075 .driver_data = (void *)0x1FUL,
1076 },
1077 {
1078 .ident = "HP Compaq 6720s",
1079 .matches = {
1080 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1081 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1082 },
1083 /* PCI slot number of the controller */
1084 .driver_data = (void *)0x1FUL,
1085 },
1086
1087 { } /* terminate list */
1088 };
1089 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1090
1091 if (dmi) {
1092 unsigned long slot = (unsigned long)dmi->driver_data;
1093 /* apply the quirk only to on-board controllers */
1094 return slot == PCI_SLOT(pdev->devfn);
1095 }
1096
1097 return false;
1098 }
1099
1100 static bool ahci_broken_suspend(struct pci_dev *pdev)
1101 {
1102 static const struct dmi_system_id sysids[] = {
1103 /*
1104 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1105 * to the harddisk doesn't become online after
1106 * resuming from STR. Warn and fail suspend.
1107 *
1108 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1109 *
1110 * Use dates instead of versions to match as HP is
1111 * apparently recycling both product and version
1112 * strings.
1113 *
1114 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1115 */
1116 {
1117 .ident = "dv4",
1118 .matches = {
1119 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1120 DMI_MATCH(DMI_PRODUCT_NAME,
1121 "HP Pavilion dv4 Notebook PC"),
1122 },
1123 .driver_data = "20090105", /* F.30 */
1124 },
1125 {
1126 .ident = "dv5",
1127 .matches = {
1128 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1129 DMI_MATCH(DMI_PRODUCT_NAME,
1130 "HP Pavilion dv5 Notebook PC"),
1131 },
1132 .driver_data = "20090506", /* F.16 */
1133 },
1134 {
1135 .ident = "dv6",
1136 .matches = {
1137 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1138 DMI_MATCH(DMI_PRODUCT_NAME,
1139 "HP Pavilion dv6 Notebook PC"),
1140 },
1141 .driver_data = "20090423", /* F.21 */
1142 },
1143 {
1144 .ident = "HDX18",
1145 .matches = {
1146 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1147 DMI_MATCH(DMI_PRODUCT_NAME,
1148 "HP HDX18 Notebook PC"),
1149 },
1150 .driver_data = "20090430", /* F.23 */
1151 },
1152 /*
1153 * Acer eMachines G725 has the same problem. BIOS
1154 * V1.03 is known to be broken. V3.04 is known to
1155 * work. Between, there are V1.06, V2.06 and V3.03
1156 * that we don't have much idea about. For now,
1157 * blacklist anything older than V3.04.
1158 *
1159 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1160 */
1161 {
1162 .ident = "G725",
1163 .matches = {
1164 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1165 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1166 },
1167 .driver_data = "20091216", /* V3.04 */
1168 },
1169 { } /* terminate list */
1170 };
1171 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1172 int year, month, date;
1173 char buf[9];
1174
1175 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1176 return false;
1177
1178 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1179 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1180
1181 return strcmp(buf, dmi->driver_data) < 0;
1182 }
1183
1184 static bool ahci_broken_online(struct pci_dev *pdev)
1185 {
1186 #define ENCODE_BUSDEVFN(bus, slot, func) \
1187 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1188 static const struct dmi_system_id sysids[] = {
1189 /*
1190 * There are several gigabyte boards which use
1191 * SIMG5723s configured as hardware RAID. Certain
1192 * 5723 firmware revisions shipped there keep the link
1193 * online but fail to answer properly to SRST or
1194 * IDENTIFY when no device is attached downstream
1195 * causing libata to retry quite a few times leading
1196 * to excessive detection delay.
1197 *
1198 * As these firmwares respond to the second reset try
1199 * with invalid device signature, considering unknown
1200 * sig as offline works around the problem acceptably.
1201 */
1202 {
1203 .ident = "EP45-DQ6",
1204 .matches = {
1205 DMI_MATCH(DMI_BOARD_VENDOR,
1206 "Gigabyte Technology Co., Ltd."),
1207 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1208 },
1209 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1210 },
1211 {
1212 .ident = "EP45-DS5",
1213 .matches = {
1214 DMI_MATCH(DMI_BOARD_VENDOR,
1215 "Gigabyte Technology Co., Ltd."),
1216 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1217 },
1218 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1219 },
1220 { } /* terminate list */
1221 };
1222 #undef ENCODE_BUSDEVFN
1223 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1224 unsigned int val;
1225
1226 if (!dmi)
1227 return false;
1228
1229 val = (unsigned long)dmi->driver_data;
1230
1231 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1232 }
1233
1234 static bool ahci_broken_devslp(struct pci_dev *pdev)
1235 {
1236 /* device with broken DEVSLP but still showing SDS capability */
1237 static const struct pci_device_id ids[] = {
1238 { PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1239 {}
1240 };
1241
1242 return pci_match_id(ids, pdev);
1243 }
1244
1245 #ifdef CONFIG_ATA_ACPI
1246 static void ahci_gtf_filter_workaround(struct ata_host *host)
1247 {
1248 static const struct dmi_system_id sysids[] = {
1249 /*
1250 * Aspire 3810T issues a bunch of SATA enable commands
1251 * via _GTF including an invalid one and one which is
1252 * rejected by the device. Among the successful ones
1253 * is FPDMA non-zero offset enable which when enabled
1254 * only on the drive side leads to NCQ command
1255 * failures. Filter it out.
1256 */
1257 {
1258 .ident = "Aspire 3810T",
1259 .matches = {
1260 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1261 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1262 },
1263 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1264 },
1265 { }
1266 };
1267 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1268 unsigned int filter;
1269 int i;
1270
1271 if (!dmi)
1272 return;
1273
1274 filter = (unsigned long)dmi->driver_data;
1275 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1276 filter, dmi->ident);
1277
1278 for (i = 0; i < host->n_ports; i++) {
1279 struct ata_port *ap = host->ports[i];
1280 struct ata_link *link;
1281 struct ata_device *dev;
1282
1283 ata_for_each_link(link, ap, EDGE)
1284 ata_for_each_dev(dev, link, ALL)
1285 dev->gtf_filter |= filter;
1286 }
1287 }
1288 #else
1289 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1290 {}
1291 #endif
1292
1293 /*
1294 * ahci_init_msix() only implements single MSI-X support, not multiple
1295 * MSI-X per-port interrupts. This is needed for host controllers that only
1296 * have MSI-X support implemented, but no MSI or intx.
1297 */
1298 static int ahci_init_msix(struct pci_dev *pdev, unsigned int n_ports,
1299 struct ahci_host_priv *hpriv)
1300 {
1301 int rc, nvec;
1302 struct msix_entry entry = {};
1303
1304 /* Do not init MSI-X if MSI is disabled for the device */
1305 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1306 return -ENODEV;
1307
1308 nvec = pci_msix_vec_count(pdev);
1309 if (nvec < 0)
1310 return nvec;
1311
1312 if (!nvec) {
1313 rc = -ENODEV;
1314 goto fail;
1315 }
1316
1317 /*
1318 * There can be more than one vector (e.g. for error detection or
1319 * hdd hotplug). Only the first vector (entry.entry = 0) is used.
1320 */
1321 rc = pci_enable_msix_exact(pdev, &entry, 1);
1322 if (rc < 0)
1323 goto fail;
1324
1325 hpriv->irq = entry.vector;
1326
1327 return 1;
1328 fail:
1329 dev_err(&pdev->dev,
1330 "failed to enable MSI-X with error %d, # of vectors: %d\n",
1331 rc, nvec);
1332
1333 return rc;
1334 }
1335
1336 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1337 struct ahci_host_priv *hpriv)
1338 {
1339 int rc, nvec;
1340
1341 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1342 return -ENODEV;
1343
1344 nvec = pci_msi_vec_count(pdev);
1345 if (nvec < 0)
1346 return nvec;
1347
1348 /*
1349 * If number of MSIs is less than number of ports then Sharing Last
1350 * Message mode could be enforced. In this case assume that advantage
1351 * of multipe MSIs is negated and use single MSI mode instead.
1352 */
1353 if (nvec < n_ports)
1354 goto single_msi;
1355
1356 rc = pci_enable_msi_exact(pdev, nvec);
1357 if (rc == -ENOSPC)
1358 goto single_msi;
1359 if (rc < 0)
1360 return rc;
1361
1362 /* fallback to single MSI mode if the controller enforced MRSM mode */
1363 if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
1364 pci_disable_msi(pdev);
1365 printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
1366 goto single_msi;
1367 }
1368
1369 if (nvec > 1)
1370 hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1371
1372 goto out;
1373
1374 single_msi:
1375 nvec = 1;
1376
1377 rc = pci_enable_msi(pdev);
1378 if (rc < 0)
1379 return rc;
1380 out:
1381 hpriv->irq = pdev->irq;
1382
1383 return nvec;
1384 }
1385
1386 static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
1387 struct ahci_host_priv *hpriv)
1388 {
1389 int nvec;
1390
1391 nvec = ahci_init_msi(pdev, n_ports, hpriv);
1392 if (nvec >= 0)
1393 return nvec;
1394
1395 /*
1396 * Currently, MSI-X support only implements single IRQ mode and
1397 * exists for controllers which can't do other types of IRQ. Only
1398 * set it up if MSI fails.
1399 */
1400 nvec = ahci_init_msix(pdev, n_ports, hpriv);
1401 if (nvec >= 0)
1402 return nvec;
1403
1404 /* lagacy intx interrupts */
1405 pci_intx(pdev, 1);
1406 hpriv->irq = pdev->irq;
1407
1408 return 0;
1409 }
1410
1411 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1412 {
1413 unsigned int board_id = ent->driver_data;
1414 struct ata_port_info pi = ahci_port_info[board_id];
1415 const struct ata_port_info *ppi[] = { &pi, NULL };
1416 struct device *dev = &pdev->dev;
1417 struct ahci_host_priv *hpriv;
1418 struct ata_host *host;
1419 int n_ports, i, rc;
1420 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1421
1422 VPRINTK("ENTER\n");
1423
1424 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1425
1426 ata_print_version_once(&pdev->dev, DRV_VERSION);
1427
1428 /* The AHCI driver can only drive the SATA ports, the PATA driver
1429 can drive them all so if both drivers are selected make sure
1430 AHCI stays out of the way */
1431 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1432 return -ENODEV;
1433
1434 /* Apple BIOS on MCP89 prevents us using AHCI */
1435 if (is_mcp89_apple(pdev))
1436 ahci_mcp89_apple_enable(pdev);
1437
1438 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1439 * At the moment, we can only use the AHCI mode. Let the users know
1440 * that for SAS drives they're out of luck.
1441 */
1442 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1443 dev_info(&pdev->dev,
1444 "PDC42819 can only drive SATA devices with this driver\n");
1445
1446 /* Some devices use non-standard BARs */
1447 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1448 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1449 else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1450 ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1451 else if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1452 ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1453
1454 /*
1455 * The JMicron chip 361/363 contains one SATA controller and one
1456 * PATA controller,for powering on these both controllers, we must
1457 * follow the sequence one by one, otherwise one of them can not be
1458 * powered on successfully, so here we disable the async suspend
1459 * method for these chips.
1460 */
1461 if (pdev->vendor == PCI_VENDOR_ID_JMICRON &&
1462 (pdev->device == PCI_DEVICE_ID_JMICRON_JMB363 ||
1463 pdev->device == PCI_DEVICE_ID_JMICRON_JMB361))
1464 device_disable_async_suspend(&pdev->dev);
1465
1466 /* acquire resources */
1467 rc = pcim_enable_device(pdev);
1468 if (rc)
1469 return rc;
1470
1471 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1472 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1473 u8 map;
1474
1475 /* ICH6s share the same PCI ID for both piix and ahci
1476 * modes. Enabling ahci mode while MAP indicates
1477 * combined mode is a bad idea. Yield to ata_piix.
1478 */
1479 pci_read_config_byte(pdev, ICH_MAP, &map);
1480 if (map & 0x3) {
1481 dev_info(&pdev->dev,
1482 "controller is in combined mode, can't enable AHCI mode\n");
1483 return -ENODEV;
1484 }
1485 }
1486
1487 /* AHCI controllers often implement SFF compatible interface.
1488 * Grab all PCI BARs just in case.
1489 */
1490 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1491 if (rc == -EBUSY)
1492 pcim_pin_device(pdev);
1493 if (rc)
1494 return rc;
1495
1496 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1497 if (!hpriv)
1498 return -ENOMEM;
1499 hpriv->flags |= (unsigned long)pi.private_data;
1500
1501 /* MCP65 revision A1 and A2 can't do MSI */
1502 if (board_id == board_ahci_mcp65 &&
1503 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1504 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1505
1506 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1507 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1508 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1509
1510 /* only some SB600s can do 64bit DMA */
1511 if (ahci_sb600_enable_64bit(pdev))
1512 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1513
1514 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1515
1516 /* must set flag prior to save config in order to take effect */
1517 if (ahci_broken_devslp(pdev))
1518 hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1519
1520 /* save initial config */
1521 ahci_pci_save_initial_config(pdev, hpriv);
1522
1523 /* prepare host */
1524 if (hpriv->cap & HOST_CAP_NCQ) {
1525 pi.flags |= ATA_FLAG_NCQ;
1526 /*
1527 * Auto-activate optimization is supposed to be
1528 * supported on all AHCI controllers indicating NCQ
1529 * capability, but it seems to be broken on some
1530 * chipsets including NVIDIAs.
1531 */
1532 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1533 pi.flags |= ATA_FLAG_FPDMA_AA;
1534
1535 /*
1536 * All AHCI controllers should be forward-compatible
1537 * with the new auxiliary field. This code should be
1538 * conditionalized if any buggy AHCI controllers are
1539 * encountered.
1540 */
1541 pi.flags |= ATA_FLAG_FPDMA_AUX;
1542 }
1543
1544 if (hpriv->cap & HOST_CAP_PMP)
1545 pi.flags |= ATA_FLAG_PMP;
1546
1547 ahci_set_em_messages(hpriv, &pi);
1548
1549 if (ahci_broken_system_poweroff(pdev)) {
1550 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1551 dev_info(&pdev->dev,
1552 "quirky BIOS, skipping spindown on poweroff\n");
1553 }
1554
1555 if (ahci_broken_suspend(pdev)) {
1556 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1557 dev_warn(&pdev->dev,
1558 "BIOS update required for suspend/resume\n");
1559 }
1560
1561 if (ahci_broken_online(pdev)) {
1562 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1563 dev_info(&pdev->dev,
1564 "online status unreliable, applying workaround\n");
1565 }
1566
1567 /* CAP.NP sometimes indicate the index of the last enabled
1568 * port, at other times, that of the last possible port, so
1569 * determining the maximum port number requires looking at
1570 * both CAP.NP and port_map.
1571 */
1572 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1573
1574 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1575 if (!host)
1576 return -ENOMEM;
1577 host->private_data = hpriv;
1578
1579 ahci_init_interrupts(pdev, n_ports, hpriv);
1580
1581 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1582 host->flags |= ATA_HOST_PARALLEL_SCAN;
1583 else
1584 dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1585
1586 if (pi.flags & ATA_FLAG_EM)
1587 ahci_reset_em(host);
1588
1589 for (i = 0; i < host->n_ports; i++) {
1590 struct ata_port *ap = host->ports[i];
1591
1592 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1593 ata_port_pbar_desc(ap, ahci_pci_bar,
1594 0x100 + ap->port_no * 0x80, "port");
1595
1596 /* set enclosure management message type */
1597 if (ap->flags & ATA_FLAG_EM)
1598 ap->em_message_type = hpriv->em_msg_type;
1599
1600
1601 /* disabled/not-implemented port */
1602 if (!(hpriv->port_map & (1 << i)))
1603 ap->ops = &ata_dummy_port_ops;
1604 }
1605
1606 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1607 ahci_p5wdh_workaround(host);
1608
1609 /* apply gtf filter quirk */
1610 ahci_gtf_filter_workaround(host);
1611
1612 /* initialize adapter */
1613 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1614 if (rc)
1615 return rc;
1616
1617 rc = ahci_pci_reset_controller(host);
1618 if (rc)
1619 return rc;
1620
1621 ahci_pci_init_controller(host);
1622 ahci_pci_print_info(host);
1623
1624 pci_set_master(pdev);
1625
1626 return ahci_host_activate(host, &ahci_sht);
1627 }
1628
1629 module_pci_driver(ahci_pci_driver);
1630
1631 MODULE_AUTHOR("Jeff Garzik");
1632 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1633 MODULE_LICENSE("GPL");
1634 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1635 MODULE_VERSION(DRV_VERSION);
Linux with added FPC-III support