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Merge branch 'akpm' (patches from Andrew)
[linux-2.6/btrfs-unstable.git] / drivers / ata / ahci.c
blob594fcabd22cd16bfcc09626338a3da33481497cc
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, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
344 { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */
345 { PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
346 { PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
347 { PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */
348 { PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
349 { PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
350 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
351 { PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
352 { PCI_VDEVICE(INTEL, 0xa184), board_ahci }, /* Lewisburg RAID*/
353 { PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
354 { PCI_VDEVICE(INTEL, 0xa18e), board_ahci }, /* Lewisburg RAID*/
355 { PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
356 { PCI_VDEVICE(INTEL, 0xa204), board_ahci }, /* Lewisburg RAID*/
357 { PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
358 { PCI_VDEVICE(INTEL, 0xa20e), board_ahci }, /* Lewisburg RAID*/
359
360 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
361 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
362 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
363 /* JMicron 362B and 362C have an AHCI function with IDE class code */
364 { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
365 { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
366 /* May need to update quirk_jmicron_async_suspend() for additions */
367
368 /* ATI */
369 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
370 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
371 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
372 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
373 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
374 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
375 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
376
377 /* AMD */
378 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
379 { PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
380 /* AMD is using RAID class only for ahci controllers */
381 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
382 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
383
384 /* VIA */
385 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
386 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
387
388 /* NVIDIA */
389 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
390 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
391 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
392 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
393 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
394 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
395 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
396 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
397 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
398 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
399 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
400 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
401 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
402 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
403 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
404 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
405 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
406 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
407 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
408 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
409 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
410 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
411 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
412 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
413 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
414 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
415 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
416 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
417 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
418 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
419 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
420 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
421 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
422 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
423 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
424 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
425 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
426 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
427 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
428 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
429 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
430 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
431 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
432 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
433 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
434 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
435 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
436 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
437 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
438 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
439 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
440 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
441 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
442 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
443 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
444 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
445 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
446 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
447 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
448 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
449 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
450 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
451 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
452 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
453 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
454 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
455 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
456 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
457 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
458 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
459 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
460 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
461 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
462 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
463 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
464 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
465 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
466 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
467 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
468 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
469 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
470 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
471 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
472 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
473
474 /* SiS */
475 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
476 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
477 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
478
479 /* ST Microelectronics */
480 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
481
482 /* Marvell */
483 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
484 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
485 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
486 .class = PCI_CLASS_STORAGE_SATA_AHCI,
487 .class_mask = 0xffffff,
488 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
489 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
490 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
491 { PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
492 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
493 .driver_data = board_ahci_yes_fbs }, /* 88se9170 */
494 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
495 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
496 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
497 .driver_data = board_ahci_yes_fbs }, /* 88se9182 */
498 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
499 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
500 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
501 .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
502 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
503 .driver_data = board_ahci_yes_fbs },
504 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), /* 88se91a2 */
505 .driver_data = board_ahci_yes_fbs },
506 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
507 .driver_data = board_ahci_yes_fbs },
508 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
509 .driver_data = board_ahci_yes_fbs },
510 { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
511 .driver_data = board_ahci_yes_fbs },
512
513 /* Promise */
514 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
515 { PCI_VDEVICE(PROMISE, 0x3781), board_ahci }, /* FastTrak TX8660 ahci-mode */
516
517 /* Asmedia */
518 { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
519 { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
520 { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
521 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
522
523 /*
524 * Samsung SSDs found on some macbooks. NCQ times out if MSI is
525 * enabled. https://bugzilla.kernel.org/show_bug.cgi?id=60731
526 */
527 { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
528 { PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
529
530 /* Enmotus */
531 { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
532
533 /* Generic, PCI class code for AHCI */
534 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
535 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
536
537 { } /* terminate list */
538 };
539
540
541 static struct pci_driver ahci_pci_driver = {
542 .name = DRV_NAME,
543 .id_table = ahci_pci_tbl,
544 .probe = ahci_init_one,
545 .remove = ata_pci_remove_one,
546 #ifdef CONFIG_PM
547 .suspend = ahci_pci_device_suspend,
548 .resume = ahci_pci_device_resume,
549 #endif
550 };
551
552 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
553 static int marvell_enable;
554 #else
555 static int marvell_enable = 1;
556 #endif
557 module_param(marvell_enable, int, 0644);
558 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
559
560
561 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
562 struct ahci_host_priv *hpriv)
563 {
564 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
565 dev_info(&pdev->dev, "JMB361 has only one port\n");
566 hpriv->force_port_map = 1;
567 }
568
569 /*
570 * Temporary Marvell 6145 hack: PATA port presence
571 * is asserted through the standard AHCI port
572 * presence register, as bit 4 (counting from 0)
573 */
574 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
575 if (pdev->device == 0x6121)
576 hpriv->mask_port_map = 0x3;
577 else
578 hpriv->mask_port_map = 0xf;
579 dev_info(&pdev->dev,
580 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
581 }
582
583 ahci_save_initial_config(&pdev->dev, hpriv);
584 }
585
586 static int ahci_pci_reset_controller(struct ata_host *host)
587 {
588 struct pci_dev *pdev = to_pci_dev(host->dev);
589
590 ahci_reset_controller(host);
591
592 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
593 struct ahci_host_priv *hpriv = host->private_data;
594 u16 tmp16;
595
596 /* configure PCS */
597 pci_read_config_word(pdev, 0x92, &tmp16);
598 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
599 tmp16 |= hpriv->port_map;
600 pci_write_config_word(pdev, 0x92, tmp16);
601 }
602 }
603
604 return 0;
605 }
606
607 static void ahci_pci_init_controller(struct ata_host *host)
608 {
609 struct ahci_host_priv *hpriv = host->private_data;
610 struct pci_dev *pdev = to_pci_dev(host->dev);
611 void __iomem *port_mmio;
612 u32 tmp;
613 int mv;
614
615 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
616 if (pdev->device == 0x6121)
617 mv = 2;
618 else
619 mv = 4;
620 port_mmio = __ahci_port_base(host, mv);
621
622 writel(0, port_mmio + PORT_IRQ_MASK);
623
624 /* clear port IRQ */
625 tmp = readl(port_mmio + PORT_IRQ_STAT);
626 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
627 if (tmp)
628 writel(tmp, port_mmio + PORT_IRQ_STAT);
629 }
630
631 ahci_init_controller(host);
632 }
633
634 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
635 unsigned long deadline)
636 {
637 struct ata_port *ap = link->ap;
638 struct ahci_host_priv *hpriv = ap->host->private_data;
639 bool online;
640 int rc;
641
642 DPRINTK("ENTER\n");
643
644 ahci_stop_engine(ap);
645
646 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
647 deadline, &online, NULL);
648
649 hpriv->start_engine(ap);
650
651 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
652
653 /* vt8251 doesn't clear BSY on signature FIS reception,
654 * request follow-up softreset.
655 */
656 return online ? -EAGAIN : rc;
657 }
658
659 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
660 unsigned long deadline)
661 {
662 struct ata_port *ap = link->ap;
663 struct ahci_port_priv *pp = ap->private_data;
664 struct ahci_host_priv *hpriv = ap->host->private_data;
665 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
666 struct ata_taskfile tf;
667 bool online;
668 int rc;
669
670 ahci_stop_engine(ap);
671
672 /* clear D2H reception area to properly wait for D2H FIS */
673 ata_tf_init(link->device, &tf);
674 tf.command = ATA_BUSY;
675 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
676
677 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
678 deadline, &online, NULL);
679
680 hpriv->start_engine(ap);
681
682 /* The pseudo configuration device on SIMG4726 attached to
683 * ASUS P5W-DH Deluxe doesn't send signature FIS after
684 * hardreset if no device is attached to the first downstream
685 * port && the pseudo device locks up on SRST w/ PMP==0. To
686 * work around this, wait for !BSY only briefly. If BSY isn't
687 * cleared, perform CLO and proceed to IDENTIFY (achieved by
688 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
689 *
690 * Wait for two seconds. Devices attached to downstream port
691 * which can't process the following IDENTIFY after this will
692 * have to be reset again. For most cases, this should
693 * suffice while making probing snappish enough.
694 */
695 if (online) {
696 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
697 ahci_check_ready);
698 if (rc)
699 ahci_kick_engine(ap);
700 }
701 return rc;
702 }
703
704 /*
705 * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
706 *
707 * It has been observed with some SSDs that the timing of events in the
708 * link synchronization phase can leave the port in a state that can not
709 * be recovered by a SATA-hard-reset alone. The failing signature is
710 * SStatus.DET stuck at 1 ("Device presence detected but Phy
711 * communication not established"). It was found that unloading and
712 * reloading the driver when this problem occurs allows the drive
713 * connection to be recovered (DET advanced to 0x3). The critical
714 * component of reloading the driver is that the port state machines are
715 * reset by bouncing "port enable" in the AHCI PCS configuration
716 * register. So, reproduce that effect by bouncing a port whenever we
717 * see DET==1 after a reset.
718 */
719 static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
720 unsigned long deadline)
721 {
722 const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
723 struct ata_port *ap = link->ap;
724 struct ahci_port_priv *pp = ap->private_data;
725 struct ahci_host_priv *hpriv = ap->host->private_data;
726 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
727 unsigned long tmo = deadline - jiffies;
728 struct ata_taskfile tf;
729 bool online;
730 int rc, i;
731
732 DPRINTK("ENTER\n");
733
734 ahci_stop_engine(ap);
735
736 for (i = 0; i < 2; i++) {
737 u16 val;
738 u32 sstatus;
739 int port = ap->port_no;
740 struct ata_host *host = ap->host;
741 struct pci_dev *pdev = to_pci_dev(host->dev);
742
743 /* clear D2H reception area to properly wait for D2H FIS */
744 ata_tf_init(link->device, &tf);
745 tf.command = ATA_BUSY;
746 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
747
748 rc = sata_link_hardreset(link, timing, deadline, &online,
749 ahci_check_ready);
750
751 if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
752 (sstatus & 0xf) != 1)
753 break;
754
755 ata_link_printk(link, KERN_INFO, "avn bounce port%d\n",
756 port);
757
758 pci_read_config_word(pdev, 0x92, &val);
759 val &= ~(1 << port);
760 pci_write_config_word(pdev, 0x92, val);
761 ata_msleep(ap, 1000);
762 val |= 1 << port;
763 pci_write_config_word(pdev, 0x92, val);
764 deadline += tmo;
765 }
766
767 hpriv->start_engine(ap);
768
769 if (online)
770 *class = ahci_dev_classify(ap);
771
772 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
773 return rc;
774 }
775
776
777 #ifdef CONFIG_PM
778 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
779 {
780 struct ata_host *host = pci_get_drvdata(pdev);
781 struct ahci_host_priv *hpriv = host->private_data;
782 void __iomem *mmio = hpriv->mmio;
783 u32 ctl;
784
785 if (mesg.event & PM_EVENT_SUSPEND &&
786 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
787 dev_err(&pdev->dev,
788 "BIOS update required for suspend/resume\n");
789 return -EIO;
790 }
791
792 if (mesg.event & PM_EVENT_SLEEP) {
793 /* AHCI spec rev1.1 section 8.3.3:
794 * Software must disable interrupts prior to requesting a
795 * transition of the HBA to D3 state.
796 */
797 ctl = readl(mmio + HOST_CTL);
798 ctl &= ~HOST_IRQ_EN;
799 writel(ctl, mmio + HOST_CTL);
800 readl(mmio + HOST_CTL); /* flush */
801 }
802
803 return ata_pci_device_suspend(pdev, mesg);
804 }
805
806 static int ahci_pci_device_resume(struct pci_dev *pdev)
807 {
808 struct ata_host *host = pci_get_drvdata(pdev);
809 int rc;
810
811 rc = ata_pci_device_do_resume(pdev);
812 if (rc)
813 return rc;
814
815 /* Apple BIOS helpfully mangles the registers on resume */
816 if (is_mcp89_apple(pdev))
817 ahci_mcp89_apple_enable(pdev);
818
819 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
820 rc = ahci_pci_reset_controller(host);
821 if (rc)
822 return rc;
823
824 ahci_pci_init_controller(host);
825 }
826
827 ata_host_resume(host);
828
829 return 0;
830 }
831 #endif
832
833 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
834 {
835 int rc;
836
837 /*
838 * If the device fixup already set the dma_mask to some non-standard
839 * value, don't extend it here. This happens on STA2X11, for example.
840 */
841 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
842 return 0;
843
844 if (using_dac &&
845 !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
846 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
847 if (rc) {
848 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
849 if (rc) {
850 dev_err(&pdev->dev,
851 "64-bit DMA enable failed\n");
852 return rc;
853 }
854 }
855 } else {
856 rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
857 if (rc) {
858 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
859 return rc;
860 }
861 rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
862 if (rc) {
863 dev_err(&pdev->dev,
864 "32-bit consistent DMA enable failed\n");
865 return rc;
866 }
867 }
868 return 0;
869 }
870
871 static void ahci_pci_print_info(struct ata_host *host)
872 {
873 struct pci_dev *pdev = to_pci_dev(host->dev);
874 u16 cc;
875 const char *scc_s;
876
877 pci_read_config_word(pdev, 0x0a, &cc);
878 if (cc == PCI_CLASS_STORAGE_IDE)
879 scc_s = "IDE";
880 else if (cc == PCI_CLASS_STORAGE_SATA)
881 scc_s = "SATA";
882 else if (cc == PCI_CLASS_STORAGE_RAID)
883 scc_s = "RAID";
884 else
885 scc_s = "unknown";
886
887 ahci_print_info(host, scc_s);
888 }
889
890 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
891 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
892 * support PMP and the 4726 either directly exports the device
893 * attached to the first downstream port or acts as a hardware storage
894 * controller and emulate a single ATA device (can be RAID 0/1 or some
895 * other configuration).
896 *
897 * When there's no device attached to the first downstream port of the
898 * 4726, "Config Disk" appears, which is a pseudo ATA device to
899 * configure the 4726. However, ATA emulation of the device is very
900 * lame. It doesn't send signature D2H Reg FIS after the initial
901 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
902 *
903 * The following function works around the problem by always using
904 * hardreset on the port and not depending on receiving signature FIS
905 * afterward. If signature FIS isn't received soon, ATA class is
906 * assumed without follow-up softreset.
907 */
908 static void ahci_p5wdh_workaround(struct ata_host *host)
909 {
910 static const struct dmi_system_id sysids[] = {
911 {
912 .ident = "P5W DH Deluxe",
913 .matches = {
914 DMI_MATCH(DMI_SYS_VENDOR,
915 "ASUSTEK COMPUTER INC"),
916 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
917 },
918 },
919 { }
920 };
921 struct pci_dev *pdev = to_pci_dev(host->dev);
922
923 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
924 dmi_check_system(sysids)) {
925 struct ata_port *ap = host->ports[1];
926
927 dev_info(&pdev->dev,
928 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
929
930 ap->ops = &ahci_p5wdh_ops;
931 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
932 }
933 }
934
935 /*
936 * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
937 * booting in BIOS compatibility mode. We restore the registers but not ID.
938 */
939 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
940 {
941 u32 val;
942
943 printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
944
945 pci_read_config_dword(pdev, 0xf8, &val);
946 val |= 1 << 0x1b;
947 /* the following changes the device ID, but appears not to affect function */
948 /* val = (val & ~0xf0000000) | 0x80000000; */
949 pci_write_config_dword(pdev, 0xf8, val);
950
951 pci_read_config_dword(pdev, 0x54c, &val);
952 val |= 1 << 0xc;
953 pci_write_config_dword(pdev, 0x54c, val);
954
955 pci_read_config_dword(pdev, 0x4a4, &val);
956 val &= 0xff;
957 val |= 0x01060100;
958 pci_write_config_dword(pdev, 0x4a4, val);
959
960 pci_read_config_dword(pdev, 0x54c, &val);
961 val &= ~(1 << 0xc);
962 pci_write_config_dword(pdev, 0x54c, val);
963
964 pci_read_config_dword(pdev, 0xf8, &val);
965 val &= ~(1 << 0x1b);
966 pci_write_config_dword(pdev, 0xf8, val);
967 }
968
969 static bool is_mcp89_apple(struct pci_dev *pdev)
970 {
971 return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
972 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
973 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
974 pdev->subsystem_device == 0xcb89;
975 }
976
977 /* only some SB600 ahci controllers can do 64bit DMA */
978 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
979 {
980 static const struct dmi_system_id sysids[] = {
981 /*
982 * The oldest version known to be broken is 0901 and
983 * working is 1501 which was released on 2007-10-26.
984 * Enable 64bit DMA on 1501 and anything newer.
985 *
986 * Please read bko#9412 for more info.
987 */
988 {
989 .ident = "ASUS M2A-VM",
990 .matches = {
991 DMI_MATCH(DMI_BOARD_VENDOR,
992 "ASUSTeK Computer INC."),
993 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
994 },
995 .driver_data = "20071026", /* yyyymmdd */
996 },
997 /*
998 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
999 * support 64bit DMA.
1000 *
1001 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1002 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1003 * This spelling mistake was fixed in BIOS version 1.5, so
1004 * 1.5 and later have the Manufacturer as
1005 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1006 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1007 *
1008 * BIOS versions earlier than 1.9 had a Board Product Name
1009 * DMI field of "MS-7376". This was changed to be
1010 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1011 * match on DMI_BOARD_NAME of "MS-7376".
1012 */
1013 {
1014 .ident = "MSI K9A2 Platinum",
1015 .matches = {
1016 DMI_MATCH(DMI_BOARD_VENDOR,
1017 "MICRO-STAR INTER"),
1018 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1019 },
1020 },
1021 /*
1022 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1023 * 64bit DMA.
1024 *
1025 * This board also had the typo mentioned above in the
1026 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1027 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1028 */
1029 {
1030 .ident = "MSI K9AGM2",
1031 .matches = {
1032 DMI_MATCH(DMI_BOARD_VENDOR,
1033 "MICRO-STAR INTER"),
1034 DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1035 },
1036 },
1037 /*
1038 * All BIOS versions for the Asus M3A support 64bit DMA.
1039 * (all release versions from 0301 to 1206 were tested)
1040 */
1041 {
1042 .ident = "ASUS M3A",
1043 .matches = {
1044 DMI_MATCH(DMI_BOARD_VENDOR,
1045 "ASUSTeK Computer INC."),
1046 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1047 },
1048 },
1049 { }
1050 };
1051 const struct dmi_system_id *match;
1052 int year, month, date;
1053 char buf[9];
1054
1055 match = dmi_first_match(sysids);
1056 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1057 !match)
1058 return false;
1059
1060 if (!match->driver_data)
1061 goto enable_64bit;
1062
1063 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1064 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1065
1066 if (strcmp(buf, match->driver_data) >= 0)
1067 goto enable_64bit;
1068 else {
1069 dev_warn(&pdev->dev,
1070 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1071 match->ident);
1072 return false;
1073 }
1074
1075 enable_64bit:
1076 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1077 return true;
1078 }
1079
1080 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1081 {
1082 static const struct dmi_system_id broken_systems[] = {
1083 {
1084 .ident = "HP Compaq nx6310",
1085 .matches = {
1086 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1087 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1088 },
1089 /* PCI slot number of the controller */
1090 .driver_data = (void *)0x1FUL,
1091 },
1092 {
1093 .ident = "HP Compaq 6720s",
1094 .matches = {
1095 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1096 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1097 },
1098 /* PCI slot number of the controller */
1099 .driver_data = (void *)0x1FUL,
1100 },
1101
1102 { } /* terminate list */
1103 };
1104 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1105
1106 if (dmi) {
1107 unsigned long slot = (unsigned long)dmi->driver_data;
1108 /* apply the quirk only to on-board controllers */
1109 return slot == PCI_SLOT(pdev->devfn);
1110 }
1111
1112 return false;
1113 }
1114
1115 static bool ahci_broken_suspend(struct pci_dev *pdev)
1116 {
1117 static const struct dmi_system_id sysids[] = {
1118 /*
1119 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1120 * to the harddisk doesn't become online after
1121 * resuming from STR. Warn and fail suspend.
1122 *
1123 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1124 *
1125 * Use dates instead of versions to match as HP is
1126 * apparently recycling both product and version
1127 * strings.
1128 *
1129 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1130 */
1131 {
1132 .ident = "dv4",
1133 .matches = {
1134 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1135 DMI_MATCH(DMI_PRODUCT_NAME,
1136 "HP Pavilion dv4 Notebook PC"),
1137 },
1138 .driver_data = "20090105", /* F.30 */
1139 },
1140 {
1141 .ident = "dv5",
1142 .matches = {
1143 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1144 DMI_MATCH(DMI_PRODUCT_NAME,
1145 "HP Pavilion dv5 Notebook PC"),
1146 },
1147 .driver_data = "20090506", /* F.16 */
1148 },
1149 {
1150 .ident = "dv6",
1151 .matches = {
1152 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1153 DMI_MATCH(DMI_PRODUCT_NAME,
1154 "HP Pavilion dv6 Notebook PC"),
1155 },
1156 .driver_data = "20090423", /* F.21 */
1157 },
1158 {
1159 .ident = "HDX18",
1160 .matches = {
1161 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1162 DMI_MATCH(DMI_PRODUCT_NAME,
1163 "HP HDX18 Notebook PC"),
1164 },
1165 .driver_data = "20090430", /* F.23 */
1166 },
1167 /*
1168 * Acer eMachines G725 has the same problem. BIOS
1169 * V1.03 is known to be broken. V3.04 is known to
1170 * work. Between, there are V1.06, V2.06 and V3.03
1171 * that we don't have much idea about. For now,
1172 * blacklist anything older than V3.04.
1173 *
1174 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1175 */
1176 {
1177 .ident = "G725",
1178 .matches = {
1179 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1180 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1181 },
1182 .driver_data = "20091216", /* V3.04 */
1183 },
1184 { } /* terminate list */
1185 };
1186 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1187 int year, month, date;
1188 char buf[9];
1189
1190 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1191 return false;
1192
1193 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1194 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1195
1196 return strcmp(buf, dmi->driver_data) < 0;
1197 }
1198
1199 static bool ahci_broken_online(struct pci_dev *pdev)
1200 {
1201 #define ENCODE_BUSDEVFN(bus, slot, func) \
1202 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1203 static const struct dmi_system_id sysids[] = {
1204 /*
1205 * There are several gigabyte boards which use
1206 * SIMG5723s configured as hardware RAID. Certain
1207 * 5723 firmware revisions shipped there keep the link
1208 * online but fail to answer properly to SRST or
1209 * IDENTIFY when no device is attached downstream
1210 * causing libata to retry quite a few times leading
1211 * to excessive detection delay.
1212 *
1213 * As these firmwares respond to the second reset try
1214 * with invalid device signature, considering unknown
1215 * sig as offline works around the problem acceptably.
1216 */
1217 {
1218 .ident = "EP45-DQ6",
1219 .matches = {
1220 DMI_MATCH(DMI_BOARD_VENDOR,
1221 "Gigabyte Technology Co., Ltd."),
1222 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1223 },
1224 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1225 },
1226 {
1227 .ident = "EP45-DS5",
1228 .matches = {
1229 DMI_MATCH(DMI_BOARD_VENDOR,
1230 "Gigabyte Technology Co., Ltd."),
1231 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1232 },
1233 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1234 },
1235 { } /* terminate list */
1236 };
1237 #undef ENCODE_BUSDEVFN
1238 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1239 unsigned int val;
1240
1241 if (!dmi)
1242 return false;
1243
1244 val = (unsigned long)dmi->driver_data;
1245
1246 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1247 }
1248
1249 static bool ahci_broken_devslp(struct pci_dev *pdev)
1250 {
1251 /* device with broken DEVSLP but still showing SDS capability */
1252 static const struct pci_device_id ids[] = {
1253 { PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1254 {}
1255 };
1256
1257 return pci_match_id(ids, pdev);
1258 }
1259
1260 #ifdef CONFIG_ATA_ACPI
1261 static void ahci_gtf_filter_workaround(struct ata_host *host)
1262 {
1263 static const struct dmi_system_id sysids[] = {
1264 /*
1265 * Aspire 3810T issues a bunch of SATA enable commands
1266 * via _GTF including an invalid one and one which is
1267 * rejected by the device. Among the successful ones
1268 * is FPDMA non-zero offset enable which when enabled
1269 * only on the drive side leads to NCQ command
1270 * failures. Filter it out.
1271 */
1272 {
1273 .ident = "Aspire 3810T",
1274 .matches = {
1275 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1276 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1277 },
1278 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1279 },
1280 { }
1281 };
1282 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1283 unsigned int filter;
1284 int i;
1285
1286 if (!dmi)
1287 return;
1288
1289 filter = (unsigned long)dmi->driver_data;
1290 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1291 filter, dmi->ident);
1292
1293 for (i = 0; i < host->n_ports; i++) {
1294 struct ata_port *ap = host->ports[i];
1295 struct ata_link *link;
1296 struct ata_device *dev;
1297
1298 ata_for_each_link(link, ap, EDGE)
1299 ata_for_each_dev(dev, link, ALL)
1300 dev->gtf_filter |= filter;
1301 }
1302 }
1303 #else
1304 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1305 {}
1306 #endif
1307
1308 /*
1309 * ahci_init_msix() - optionally enable per-port MSI-X otherwise defer
1310 * to single msi.
1311 */
1312 static int ahci_init_msix(struct pci_dev *pdev, unsigned int n_ports,
1313 struct ahci_host_priv *hpriv, unsigned long flags)
1314 {
1315 int nvec, i, rc;
1316
1317 /* Do not init MSI-X if MSI is disabled for the device */
1318 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1319 return -ENODEV;
1320
1321 nvec = pci_msix_vec_count(pdev);
1322 if (nvec < 0)
1323 return nvec;
1324
1325 /*
1326 * Proper MSI-X implementations will have a vector per-port.
1327 * Barring that, we prefer single-MSI over single-MSIX. If this
1328 * check fails (not enough MSI-X vectors for all ports) we will
1329 * be called again with the flag clear iff ahci_init_msi()
1330 * fails.
1331 */
1332 if (flags & AHCI_HFLAG_MULTI_MSIX) {
1333 if (nvec < n_ports)
1334 return -ENODEV;
1335 nvec = n_ports;
1336 } else if (nvec) {
1337 nvec = 1;
1338 } else {
1339 /*
1340 * Emit dev_err() since this was the non-legacy irq
1341 * method of last resort.
1342 */
1343 rc = -ENODEV;
1344 goto fail;
1345 }
1346
1347 for (i = 0; i < nvec; i++)
1348 hpriv->msix[i].entry = i;
1349 rc = pci_enable_msix_exact(pdev, hpriv->msix, nvec);
1350 if (rc < 0)
1351 goto fail;
1352
1353 if (nvec > 1)
1354 hpriv->flags |= AHCI_HFLAG_MULTI_MSIX;
1355 hpriv->irq = hpriv->msix[0].vector; /* for single msi-x */
1356
1357 return nvec;
1358 fail:
1359 dev_err(&pdev->dev,
1360 "failed to enable MSI-X with error %d, # of vectors: %d\n",
1361 rc, nvec);
1362
1363 return rc;
1364 }
1365
1366 static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1367 struct ahci_host_priv *hpriv)
1368 {
1369 int rc, nvec;
1370
1371 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1372 return -ENODEV;
1373
1374 nvec = pci_msi_vec_count(pdev);
1375 if (nvec < 0)
1376 return nvec;
1377
1378 /*
1379 * If number of MSIs is less than number of ports then Sharing Last
1380 * Message mode could be enforced. In this case assume that advantage
1381 * of multipe MSIs is negated and use single MSI mode instead.
1382 */
1383 if (nvec < n_ports)
1384 goto single_msi;
1385
1386 rc = pci_enable_msi_exact(pdev, nvec);
1387 if (rc == -ENOSPC)
1388 goto single_msi;
1389 if (rc < 0)
1390 return rc;
1391
1392 /* fallback to single MSI mode if the controller enforced MRSM mode */
1393 if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
1394 pci_disable_msi(pdev);
1395 printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
1396 goto single_msi;
1397 }
1398
1399 if (nvec > 1)
1400 hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1401
1402 goto out;
1403
1404 single_msi:
1405 nvec = 1;
1406
1407 rc = pci_enable_msi(pdev);
1408 if (rc < 0)
1409 return rc;
1410 out:
1411 hpriv->irq = pdev->irq;
1412
1413 return nvec;
1414 }
1415
1416 static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
1417 struct ahci_host_priv *hpriv)
1418 {
1419 int nvec;
1420
1421 /*
1422 * Try to enable per-port MSI-X. If the host is not capable
1423 * fall back to single MSI before finally attempting single
1424 * MSI-X.
1425 */
1426 nvec = ahci_init_msix(pdev, n_ports, hpriv, AHCI_HFLAG_MULTI_MSIX);
1427 if (nvec >= 0)
1428 return nvec;
1429
1430 nvec = ahci_init_msi(pdev, n_ports, hpriv);
1431 if (nvec >= 0)
1432 return nvec;
1433
1434 /* try single-msix */
1435 nvec = ahci_init_msix(pdev, n_ports, hpriv, 0);
1436 if (nvec >= 0)
1437 return nvec;
1438
1439 /* legacy intx interrupts */
1440 pci_intx(pdev, 1);
1441 hpriv->irq = pdev->irq;
1442
1443 return 0;
1444 }
1445
1446 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1447 {
1448 unsigned int board_id = ent->driver_data;
1449 struct ata_port_info pi = ahci_port_info[board_id];
1450 const struct ata_port_info *ppi[] = { &pi, NULL };
1451 struct device *dev = &pdev->dev;
1452 struct ahci_host_priv *hpriv;
1453 struct ata_host *host;
1454 int n_ports, i, rc;
1455 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1456
1457 VPRINTK("ENTER\n");
1458
1459 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1460
1461 ata_print_version_once(&pdev->dev, DRV_VERSION);
1462
1463 /* The AHCI driver can only drive the SATA ports, the PATA driver
1464 can drive them all so if both drivers are selected make sure
1465 AHCI stays out of the way */
1466 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1467 return -ENODEV;
1468
1469 /* Apple BIOS on MCP89 prevents us using AHCI */
1470 if (is_mcp89_apple(pdev))
1471 ahci_mcp89_apple_enable(pdev);
1472
1473 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1474 * At the moment, we can only use the AHCI mode. Let the users know
1475 * that for SAS drives they're out of luck.
1476 */
1477 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1478 dev_info(&pdev->dev,
1479 "PDC42819 can only drive SATA devices with this driver\n");
1480
1481 /* Some devices use non-standard BARs */
1482 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1483 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1484 else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1485 ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1486 else if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1487 ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1488
1489 /* acquire resources */
1490 rc = pcim_enable_device(pdev);
1491 if (rc)
1492 return rc;
1493
1494 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1495 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1496 u8 map;
1497
1498 /* ICH6s share the same PCI ID for both piix and ahci
1499 * modes. Enabling ahci mode while MAP indicates
1500 * combined mode is a bad idea. Yield to ata_piix.
1501 */
1502 pci_read_config_byte(pdev, ICH_MAP, &map);
1503 if (map & 0x3) {
1504 dev_info(&pdev->dev,
1505 "controller is in combined mode, can't enable AHCI mode\n");
1506 return -ENODEV;
1507 }
1508 }
1509
1510 /* AHCI controllers often implement SFF compatible interface.
1511 * Grab all PCI BARs just in case.
1512 */
1513 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1514 if (rc == -EBUSY)
1515 pcim_pin_device(pdev);
1516 if (rc)
1517 return rc;
1518
1519 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1520 if (!hpriv)
1521 return -ENOMEM;
1522 hpriv->flags |= (unsigned long)pi.private_data;
1523
1524 /* MCP65 revision A1 and A2 can't do MSI */
1525 if (board_id == board_ahci_mcp65 &&
1526 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1527 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1528
1529 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1530 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1531 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1532
1533 /* only some SB600s can do 64bit DMA */
1534 if (ahci_sb600_enable_64bit(pdev))
1535 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1536
1537 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1538
1539 /* must set flag prior to save config in order to take effect */
1540 if (ahci_broken_devslp(pdev))
1541 hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1542
1543 /* save initial config */
1544 ahci_pci_save_initial_config(pdev, hpriv);
1545
1546 /* prepare host */
1547 if (hpriv->cap & HOST_CAP_NCQ) {
1548 pi.flags |= ATA_FLAG_NCQ;
1549 /*
1550 * Auto-activate optimization is supposed to be
1551 * supported on all AHCI controllers indicating NCQ
1552 * capability, but it seems to be broken on some
1553 * chipsets including NVIDIAs.
1554 */
1555 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1556 pi.flags |= ATA_FLAG_FPDMA_AA;
1557
1558 /*
1559 * All AHCI controllers should be forward-compatible
1560 * with the new auxiliary field. This code should be
1561 * conditionalized if any buggy AHCI controllers are
1562 * encountered.
1563 */
1564 pi.flags |= ATA_FLAG_FPDMA_AUX;
1565 }
1566
1567 if (hpriv->cap & HOST_CAP_PMP)
1568 pi.flags |= ATA_FLAG_PMP;
1569
1570 ahci_set_em_messages(hpriv, &pi);
1571
1572 if (ahci_broken_system_poweroff(pdev)) {
1573 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1574 dev_info(&pdev->dev,
1575 "quirky BIOS, skipping spindown on poweroff\n");
1576 }
1577
1578 if (ahci_broken_suspend(pdev)) {
1579 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1580 dev_warn(&pdev->dev,
1581 "BIOS update required for suspend/resume\n");
1582 }
1583
1584 if (ahci_broken_online(pdev)) {
1585 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1586 dev_info(&pdev->dev,
1587 "online status unreliable, applying workaround\n");
1588 }
1589
1590 /* CAP.NP sometimes indicate the index of the last enabled
1591 * port, at other times, that of the last possible port, so
1592 * determining the maximum port number requires looking at
1593 * both CAP.NP and port_map.
1594 */
1595 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1596
1597 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1598 if (!host)
1599 return -ENOMEM;
1600 host->private_data = hpriv;
1601 hpriv->msix = devm_kzalloc(&pdev->dev,
1602 sizeof(struct msix_entry) * n_ports, GFP_KERNEL);
1603 if (!hpriv->msix)
1604 return -ENOMEM;
1605 ahci_init_interrupts(pdev, n_ports, hpriv);
1606
1607 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1608 host->flags |= ATA_HOST_PARALLEL_SCAN;
1609 else
1610 dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1611
1612 if (pi.flags & ATA_FLAG_EM)
1613 ahci_reset_em(host);
1614
1615 for (i = 0; i < host->n_ports; i++) {
1616 struct ata_port *ap = host->ports[i];
1617
1618 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1619 ata_port_pbar_desc(ap, ahci_pci_bar,
1620 0x100 + ap->port_no * 0x80, "port");
1621
1622 /* set enclosure management message type */
1623 if (ap->flags & ATA_FLAG_EM)
1624 ap->em_message_type = hpriv->em_msg_type;
1625
1626
1627 /* disabled/not-implemented port */
1628 if (!(hpriv->port_map & (1 << i)))
1629 ap->ops = &ata_dummy_port_ops;
1630 }
1631
1632 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1633 ahci_p5wdh_workaround(host);
1634
1635 /* apply gtf filter quirk */
1636 ahci_gtf_filter_workaround(host);
1637
1638 /* initialize adapter */
1639 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1640 if (rc)
1641 return rc;
1642
1643 rc = ahci_pci_reset_controller(host);
1644 if (rc)
1645 return rc;
1646
1647 ahci_pci_init_controller(host);
1648 ahci_pci_print_info(host);
1649
1650 pci_set_master(pdev);
1651
1652 return ahci_host_activate(host, &ahci_sht);
1653 }
1654
1655 module_pci_driver(ahci_pci_driver);
1656
1657 MODULE_AUTHOR("Jeff Garzik");
1658 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1659 MODULE_LICENSE("GPL");
1660 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1661 MODULE_VERSION(DRV_VERSION);
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