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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / ata / ahci.c
blobddeb845099e4c4363907553e310b816f4a5ed17b
1 /*
2 * ahci.c - AHCI SATA support
3 *
4 * Maintained by: Jeff Garzik <jgarzik@pobox.com>
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/init.h>
39 #include <linux/blkdev.h>
40 #include <linux/delay.h>
41 #include <linux/interrupt.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/device.h>
44 #include <linux/dmi.h>
45 #include <linux/gfp.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_STANDARD = 5,
57 };
58
59 enum board_ids {
60 /* board IDs by feature in alphabetical order */
61 board_ahci,
62 board_ahci_ign_iferr,
63 board_ahci_nosntf,
64 board_ahci_yes_fbs,
65
66 /* board IDs for specific chipsets in alphabetical order */
67 board_ahci_mcp65,
68 board_ahci_mcp77,
69 board_ahci_mcp89,
70 board_ahci_mv,
71 board_ahci_sb600,
72 board_ahci_sb700, /* for SB700 and SB800 */
73 board_ahci_vt8251,
74
75 /* aliases */
76 board_ahci_mcp_linux = board_ahci_mcp65,
77 board_ahci_mcp67 = board_ahci_mcp65,
78 board_ahci_mcp73 = board_ahci_mcp65,
79 board_ahci_mcp79 = board_ahci_mcp77,
80 };
81
82 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
83 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
84 unsigned long deadline);
85 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
86 unsigned long deadline);
87 #ifdef CONFIG_PM
88 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
89 static int ahci_pci_device_resume(struct pci_dev *pdev);
90 #endif
91
92 static struct scsi_host_template ahci_sht = {
93 AHCI_SHT("ahci"),
94 };
95
96 static struct ata_port_operations ahci_vt8251_ops = {
97 .inherits = &ahci_ops,
98 .hardreset = ahci_vt8251_hardreset,
99 };
100
101 static struct ata_port_operations ahci_p5wdh_ops = {
102 .inherits = &ahci_ops,
103 .hardreset = ahci_p5wdh_hardreset,
104 };
105
106 static const struct ata_port_info ahci_port_info[] = {
107 /* by features */
108 [board_ahci] =
109 {
110 .flags = AHCI_FLAG_COMMON,
111 .pio_mask = ATA_PIO4,
112 .udma_mask = ATA_UDMA6,
113 .port_ops = &ahci_ops,
114 },
115 [board_ahci_ign_iferr] =
116 {
117 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
118 .flags = AHCI_FLAG_COMMON,
119 .pio_mask = ATA_PIO4,
120 .udma_mask = ATA_UDMA6,
121 .port_ops = &ahci_ops,
122 },
123 [board_ahci_nosntf] =
124 {
125 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
126 .flags = AHCI_FLAG_COMMON,
127 .pio_mask = ATA_PIO4,
128 .udma_mask = ATA_UDMA6,
129 .port_ops = &ahci_ops,
130 },
131 [board_ahci_yes_fbs] =
132 {
133 AHCI_HFLAGS (AHCI_HFLAG_YES_FBS),
134 .flags = AHCI_FLAG_COMMON,
135 .pio_mask = ATA_PIO4,
136 .udma_mask = ATA_UDMA6,
137 .port_ops = &ahci_ops,
138 },
139 /* by chipsets */
140 [board_ahci_mcp65] =
141 {
142 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
143 AHCI_HFLAG_YES_NCQ),
144 .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
145 .pio_mask = ATA_PIO4,
146 .udma_mask = ATA_UDMA6,
147 .port_ops = &ahci_ops,
148 },
149 [board_ahci_mcp77] =
150 {
151 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
152 .flags = AHCI_FLAG_COMMON,
153 .pio_mask = ATA_PIO4,
154 .udma_mask = ATA_UDMA6,
155 .port_ops = &ahci_ops,
156 },
157 [board_ahci_mcp89] =
158 {
159 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
160 .flags = AHCI_FLAG_COMMON,
161 .pio_mask = ATA_PIO4,
162 .udma_mask = ATA_UDMA6,
163 .port_ops = &ahci_ops,
164 },
165 [board_ahci_mv] =
166 {
167 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
168 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
169 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
170 .pio_mask = ATA_PIO4,
171 .udma_mask = ATA_UDMA6,
172 .port_ops = &ahci_ops,
173 },
174 [board_ahci_sb600] =
175 {
176 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
177 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
178 AHCI_HFLAG_32BIT_ONLY),
179 .flags = AHCI_FLAG_COMMON,
180 .pio_mask = ATA_PIO4,
181 .udma_mask = ATA_UDMA6,
182 .port_ops = &ahci_pmp_retry_srst_ops,
183 },
184 [board_ahci_sb700] = /* for SB700 and SB800 */
185 {
186 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
187 .flags = AHCI_FLAG_COMMON,
188 .pio_mask = ATA_PIO4,
189 .udma_mask = ATA_UDMA6,
190 .port_ops = &ahci_pmp_retry_srst_ops,
191 },
192 [board_ahci_vt8251] =
193 {
194 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
195 .flags = AHCI_FLAG_COMMON,
196 .pio_mask = ATA_PIO4,
197 .udma_mask = ATA_UDMA6,
198 .port_ops = &ahci_vt8251_ops,
199 },
200 };
201
202 static const struct pci_device_id ahci_pci_tbl[] = {
203 /* Intel */
204 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
205 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
206 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
207 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
208 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
209 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
210 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
211 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
212 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
213 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
214 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
215 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
216 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
217 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
218 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
219 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
220 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
221 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
222 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
223 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
224 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
225 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
226 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
227 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
228 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
229 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
230 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
231 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
232 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
233 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
234 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
235 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
236 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
237 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
238 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
239 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
240 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
241 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
242 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
243 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
244 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
245 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
246 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
247 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
248 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
249 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
250 { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
251 { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
252 { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
253 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
254 { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
255 { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
256 { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
257 { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
258 { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
259 { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
260 { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
261 { PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
262
263 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
264 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
265 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
266
267 /* ATI */
268 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
269 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
270 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
271 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
272 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
273 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
274 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
275
276 /* AMD */
277 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
278 /* AMD is using RAID class only for ahci controllers */
279 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
280 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
281
282 /* VIA */
283 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
284 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
285
286 /* NVIDIA */
287 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
288 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
289 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
290 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
291 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
292 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
293 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
294 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
295 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
296 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
297 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
298 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
299 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
300 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
301 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
302 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
303 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
304 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
305 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
306 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
307 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
308 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
309 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
310 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
311 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
312 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
313 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
314 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
315 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
316 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
317 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
318 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
319 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
320 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
321 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
322 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
323 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
324 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
325 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
326 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
327 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
328 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
329 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
330 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
331 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
332 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
333 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
334 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
335 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
336 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
337 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
338 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
339 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
340 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
341 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
342 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
343 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
344 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
345 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
346 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
347 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
348 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
349 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
350 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
351 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
352 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
353 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
354 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
355 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
356 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
357 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
358 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
359 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
360 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
361 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
362 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
363 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
364 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
365 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
366 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
367 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
368 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
369 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
370 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
371
372 /* SiS */
373 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
374 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
375 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
376
377 /* ST Microelectronics */
378 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
379
380 /* Marvell */
381 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
382 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
383 { PCI_DEVICE(0x1b4b, 0x9123),
384 .class = PCI_CLASS_STORAGE_SATA_AHCI,
385 .class_mask = 0xffffff,
386 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
387 { PCI_DEVICE(0x1b4b, 0x9125),
388 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
389 { PCI_DEVICE(0x1b4b, 0x91a3),
390 .driver_data = board_ahci_yes_fbs },
391
392 /* Promise */
393 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
394
395 /* Asmedia */
396 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1061 */
397
398 /* Generic, PCI class code for AHCI */
399 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
400 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
401
402 { } /* terminate list */
403 };
404
405
406 static struct pci_driver ahci_pci_driver = {
407 .name = DRV_NAME,
408 .id_table = ahci_pci_tbl,
409 .probe = ahci_init_one,
410 .remove = ata_pci_remove_one,
411 #ifdef CONFIG_PM
412 .suspend = ahci_pci_device_suspend,
413 .resume = ahci_pci_device_resume,
414 #endif
415 };
416
417 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
418 static int marvell_enable;
419 #else
420 static int marvell_enable = 1;
421 #endif
422 module_param(marvell_enable, int, 0644);
423 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
424
425
426 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
427 struct ahci_host_priv *hpriv)
428 {
429 unsigned int force_port_map = 0;
430 unsigned int mask_port_map = 0;
431
432 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
433 dev_info(&pdev->dev, "JMB361 has only one port\n");
434 force_port_map = 1;
435 }
436
437 /*
438 * Temporary Marvell 6145 hack: PATA port presence
439 * is asserted through the standard AHCI port
440 * presence register, as bit 4 (counting from 0)
441 */
442 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
443 if (pdev->device == 0x6121)
444 mask_port_map = 0x3;
445 else
446 mask_port_map = 0xf;
447 dev_info(&pdev->dev,
448 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
449 }
450
451 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
452 mask_port_map);
453 }
454
455 static int ahci_pci_reset_controller(struct ata_host *host)
456 {
457 struct pci_dev *pdev = to_pci_dev(host->dev);
458
459 ahci_reset_controller(host);
460
461 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
462 struct ahci_host_priv *hpriv = host->private_data;
463 u16 tmp16;
464
465 /* configure PCS */
466 pci_read_config_word(pdev, 0x92, &tmp16);
467 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
468 tmp16 |= hpriv->port_map;
469 pci_write_config_word(pdev, 0x92, tmp16);
470 }
471 }
472
473 return 0;
474 }
475
476 static void ahci_pci_init_controller(struct ata_host *host)
477 {
478 struct ahci_host_priv *hpriv = host->private_data;
479 struct pci_dev *pdev = to_pci_dev(host->dev);
480 void __iomem *port_mmio;
481 u32 tmp;
482 int mv;
483
484 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
485 if (pdev->device == 0x6121)
486 mv = 2;
487 else
488 mv = 4;
489 port_mmio = __ahci_port_base(host, mv);
490
491 writel(0, port_mmio + PORT_IRQ_MASK);
492
493 /* clear port IRQ */
494 tmp = readl(port_mmio + PORT_IRQ_STAT);
495 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
496 if (tmp)
497 writel(tmp, port_mmio + PORT_IRQ_STAT);
498 }
499
500 ahci_init_controller(host);
501 }
502
503 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
504 unsigned long deadline)
505 {
506 struct ata_port *ap = link->ap;
507 bool online;
508 int rc;
509
510 DPRINTK("ENTER\n");
511
512 ahci_stop_engine(ap);
513
514 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
515 deadline, &online, NULL);
516
517 ahci_start_engine(ap);
518
519 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
520
521 /* vt8251 doesn't clear BSY on signature FIS reception,
522 * request follow-up softreset.
523 */
524 return online ? -EAGAIN : rc;
525 }
526
527 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
528 unsigned long deadline)
529 {
530 struct ata_port *ap = link->ap;
531 struct ahci_port_priv *pp = ap->private_data;
532 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
533 struct ata_taskfile tf;
534 bool online;
535 int rc;
536
537 ahci_stop_engine(ap);
538
539 /* clear D2H reception area to properly wait for D2H FIS */
540 ata_tf_init(link->device, &tf);
541 tf.command = 0x80;
542 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
543
544 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
545 deadline, &online, NULL);
546
547 ahci_start_engine(ap);
548
549 /* The pseudo configuration device on SIMG4726 attached to
550 * ASUS P5W-DH Deluxe doesn't send signature FIS after
551 * hardreset if no device is attached to the first downstream
552 * port && the pseudo device locks up on SRST w/ PMP==0. To
553 * work around this, wait for !BSY only briefly. If BSY isn't
554 * cleared, perform CLO and proceed to IDENTIFY (achieved by
555 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
556 *
557 * Wait for two seconds. Devices attached to downstream port
558 * which can't process the following IDENTIFY after this will
559 * have to be reset again. For most cases, this should
560 * suffice while making probing snappish enough.
561 */
562 if (online) {
563 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
564 ahci_check_ready);
565 if (rc)
566 ahci_kick_engine(ap);
567 }
568 return rc;
569 }
570
571 #ifdef CONFIG_PM
572 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
573 {
574 struct ata_host *host = dev_get_drvdata(&pdev->dev);
575 struct ahci_host_priv *hpriv = host->private_data;
576 void __iomem *mmio = hpriv->mmio;
577 u32 ctl;
578
579 if (mesg.event & PM_EVENT_SUSPEND &&
580 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
581 dev_err(&pdev->dev,
582 "BIOS update required for suspend/resume\n");
583 return -EIO;
584 }
585
586 if (mesg.event & PM_EVENT_SLEEP) {
587 /* AHCI spec rev1.1 section 8.3.3:
588 * Software must disable interrupts prior to requesting a
589 * transition of the HBA to D3 state.
590 */
591 ctl = readl(mmio + HOST_CTL);
592 ctl &= ~HOST_IRQ_EN;
593 writel(ctl, mmio + HOST_CTL);
594 readl(mmio + HOST_CTL); /* flush */
595 }
596
597 return ata_pci_device_suspend(pdev, mesg);
598 }
599
600 static int ahci_pci_device_resume(struct pci_dev *pdev)
601 {
602 struct ata_host *host = dev_get_drvdata(&pdev->dev);
603 int rc;
604
605 rc = ata_pci_device_do_resume(pdev);
606 if (rc)
607 return rc;
608
609 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
610 rc = ahci_pci_reset_controller(host);
611 if (rc)
612 return rc;
613
614 ahci_pci_init_controller(host);
615 }
616
617 ata_host_resume(host);
618
619 return 0;
620 }
621 #endif
622
623 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
624 {
625 int rc;
626
627 /*
628 * If the device fixup already set the dma_mask to some non-standard
629 * value, don't extend it here. This happens on STA2X11, for example.
630 */
631 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
632 return 0;
633
634 if (using_dac &&
635 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
636 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
637 if (rc) {
638 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
639 if (rc) {
640 dev_err(&pdev->dev,
641 "64-bit DMA enable failed\n");
642 return rc;
643 }
644 }
645 } else {
646 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
647 if (rc) {
648 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
649 return rc;
650 }
651 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
652 if (rc) {
653 dev_err(&pdev->dev,
654 "32-bit consistent DMA enable failed\n");
655 return rc;
656 }
657 }
658 return 0;
659 }
660
661 static void ahci_pci_print_info(struct ata_host *host)
662 {
663 struct pci_dev *pdev = to_pci_dev(host->dev);
664 u16 cc;
665 const char *scc_s;
666
667 pci_read_config_word(pdev, 0x0a, &cc);
668 if (cc == PCI_CLASS_STORAGE_IDE)
669 scc_s = "IDE";
670 else if (cc == PCI_CLASS_STORAGE_SATA)
671 scc_s = "SATA";
672 else if (cc == PCI_CLASS_STORAGE_RAID)
673 scc_s = "RAID";
674 else
675 scc_s = "unknown";
676
677 ahci_print_info(host, scc_s);
678 }
679
680 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
681 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
682 * support PMP and the 4726 either directly exports the device
683 * attached to the first downstream port or acts as a hardware storage
684 * controller and emulate a single ATA device (can be RAID 0/1 or some
685 * other configuration).
686 *
687 * When there's no device attached to the first downstream port of the
688 * 4726, "Config Disk" appears, which is a pseudo ATA device to
689 * configure the 4726. However, ATA emulation of the device is very
690 * lame. It doesn't send signature D2H Reg FIS after the initial
691 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
692 *
693 * The following function works around the problem by always using
694 * hardreset on the port and not depending on receiving signature FIS
695 * afterward. If signature FIS isn't received soon, ATA class is
696 * assumed without follow-up softreset.
697 */
698 static void ahci_p5wdh_workaround(struct ata_host *host)
699 {
700 static struct dmi_system_id sysids[] = {
701 {
702 .ident = "P5W DH Deluxe",
703 .matches = {
704 DMI_MATCH(DMI_SYS_VENDOR,
705 "ASUSTEK COMPUTER INC"),
706 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
707 },
708 },
709 { }
710 };
711 struct pci_dev *pdev = to_pci_dev(host->dev);
712
713 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
714 dmi_check_system(sysids)) {
715 struct ata_port *ap = host->ports[1];
716
717 dev_info(&pdev->dev,
718 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
719
720 ap->ops = &ahci_p5wdh_ops;
721 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
722 }
723 }
724
725 /* only some SB600 ahci controllers can do 64bit DMA */
726 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
727 {
728 static const struct dmi_system_id sysids[] = {
729 /*
730 * The oldest version known to be broken is 0901 and
731 * working is 1501 which was released on 2007-10-26.
732 * Enable 64bit DMA on 1501 and anything newer.
733 *
734 * Please read bko#9412 for more info.
735 */
736 {
737 .ident = "ASUS M2A-VM",
738 .matches = {
739 DMI_MATCH(DMI_BOARD_VENDOR,
740 "ASUSTeK Computer INC."),
741 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
742 },
743 .driver_data = "20071026", /* yyyymmdd */
744 },
745 /*
746 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
747 * support 64bit DMA.
748 *
749 * BIOS versions earlier than 1.5 had the Manufacturer DMI
750 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
751 * This spelling mistake was fixed in BIOS version 1.5, so
752 * 1.5 and later have the Manufacturer as
753 * "MICRO-STAR INTERNATIONAL CO.,LTD".
754 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
755 *
756 * BIOS versions earlier than 1.9 had a Board Product Name
757 * DMI field of "MS-7376". This was changed to be
758 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
759 * match on DMI_BOARD_NAME of "MS-7376".
760 */
761 {
762 .ident = "MSI K9A2 Platinum",
763 .matches = {
764 DMI_MATCH(DMI_BOARD_VENDOR,
765 "MICRO-STAR INTER"),
766 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
767 },
768 },
769 /*
770 * All BIOS versions for the Asus M3A support 64bit DMA.
771 * (all release versions from 0301 to 1206 were tested)
772 */
773 {
774 .ident = "ASUS M3A",
775 .matches = {
776 DMI_MATCH(DMI_BOARD_VENDOR,
777 "ASUSTeK Computer INC."),
778 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
779 },
780 },
781 { }
782 };
783 const struct dmi_system_id *match;
784 int year, month, date;
785 char buf[9];
786
787 match = dmi_first_match(sysids);
788 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
789 !match)
790 return false;
791
792 if (!match->driver_data)
793 goto enable_64bit;
794
795 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
796 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
797
798 if (strcmp(buf, match->driver_data) >= 0)
799 goto enable_64bit;
800 else {
801 dev_warn(&pdev->dev,
802 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
803 match->ident);
804 return false;
805 }
806
807 enable_64bit:
808 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
809 return true;
810 }
811
812 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
813 {
814 static const struct dmi_system_id broken_systems[] = {
815 {
816 .ident = "HP Compaq nx6310",
817 .matches = {
818 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
819 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
820 },
821 /* PCI slot number of the controller */
822 .driver_data = (void *)0x1FUL,
823 },
824 {
825 .ident = "HP Compaq 6720s",
826 .matches = {
827 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
828 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
829 },
830 /* PCI slot number of the controller */
831 .driver_data = (void *)0x1FUL,
832 },
833
834 { } /* terminate list */
835 };
836 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
837
838 if (dmi) {
839 unsigned long slot = (unsigned long)dmi->driver_data;
840 /* apply the quirk only to on-board controllers */
841 return slot == PCI_SLOT(pdev->devfn);
842 }
843
844 return false;
845 }
846
847 static bool ahci_broken_suspend(struct pci_dev *pdev)
848 {
849 static const struct dmi_system_id sysids[] = {
850 /*
851 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
852 * to the harddisk doesn't become online after
853 * resuming from STR. Warn and fail suspend.
854 *
855 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
856 *
857 * Use dates instead of versions to match as HP is
858 * apparently recycling both product and version
859 * strings.
860 *
861 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
862 */
863 {
864 .ident = "dv4",
865 .matches = {
866 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
867 DMI_MATCH(DMI_PRODUCT_NAME,
868 "HP Pavilion dv4 Notebook PC"),
869 },
870 .driver_data = "20090105", /* F.30 */
871 },
872 {
873 .ident = "dv5",
874 .matches = {
875 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
876 DMI_MATCH(DMI_PRODUCT_NAME,
877 "HP Pavilion dv5 Notebook PC"),
878 },
879 .driver_data = "20090506", /* F.16 */
880 },
881 {
882 .ident = "dv6",
883 .matches = {
884 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
885 DMI_MATCH(DMI_PRODUCT_NAME,
886 "HP Pavilion dv6 Notebook PC"),
887 },
888 .driver_data = "20090423", /* F.21 */
889 },
890 {
891 .ident = "HDX18",
892 .matches = {
893 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
894 DMI_MATCH(DMI_PRODUCT_NAME,
895 "HP HDX18 Notebook PC"),
896 },
897 .driver_data = "20090430", /* F.23 */
898 },
899 /*
900 * Acer eMachines G725 has the same problem. BIOS
901 * V1.03 is known to be broken. V3.04 is known to
902 * work. Between, there are V1.06, V2.06 and V3.03
903 * that we don't have much idea about. For now,
904 * blacklist anything older than V3.04.
905 *
906 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
907 */
908 {
909 .ident = "G725",
910 .matches = {
911 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
912 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
913 },
914 .driver_data = "20091216", /* V3.04 */
915 },
916 { } /* terminate list */
917 };
918 const struct dmi_system_id *dmi = dmi_first_match(sysids);
919 int year, month, date;
920 char buf[9];
921
922 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
923 return false;
924
925 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
926 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
927
928 return strcmp(buf, dmi->driver_data) < 0;
929 }
930
931 static bool ahci_broken_online(struct pci_dev *pdev)
932 {
933 #define ENCODE_BUSDEVFN(bus, slot, func) \
934 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
935 static const struct dmi_system_id sysids[] = {
936 /*
937 * There are several gigabyte boards which use
938 * SIMG5723s configured as hardware RAID. Certain
939 * 5723 firmware revisions shipped there keep the link
940 * online but fail to answer properly to SRST or
941 * IDENTIFY when no device is attached downstream
942 * causing libata to retry quite a few times leading
943 * to excessive detection delay.
944 *
945 * As these firmwares respond to the second reset try
946 * with invalid device signature, considering unknown
947 * sig as offline works around the problem acceptably.
948 */
949 {
950 .ident = "EP45-DQ6",
951 .matches = {
952 DMI_MATCH(DMI_BOARD_VENDOR,
953 "Gigabyte Technology Co., Ltd."),
954 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
955 },
956 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
957 },
958 {
959 .ident = "EP45-DS5",
960 .matches = {
961 DMI_MATCH(DMI_BOARD_VENDOR,
962 "Gigabyte Technology Co., Ltd."),
963 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
964 },
965 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
966 },
967 { } /* terminate list */
968 };
969 #undef ENCODE_BUSDEVFN
970 const struct dmi_system_id *dmi = dmi_first_match(sysids);
971 unsigned int val;
972
973 if (!dmi)
974 return false;
975
976 val = (unsigned long)dmi->driver_data;
977
978 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
979 }
980
981 #ifdef CONFIG_ATA_ACPI
982 static void ahci_gtf_filter_workaround(struct ata_host *host)
983 {
984 static const struct dmi_system_id sysids[] = {
985 /*
986 * Aspire 3810T issues a bunch of SATA enable commands
987 * via _GTF including an invalid one and one which is
988 * rejected by the device. Among the successful ones
989 * is FPDMA non-zero offset enable which when enabled
990 * only on the drive side leads to NCQ command
991 * failures. Filter it out.
992 */
993 {
994 .ident = "Aspire 3810T",
995 .matches = {
996 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
997 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
998 },
999 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1000 },
1001 { }
1002 };
1003 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1004 unsigned int filter;
1005 int i;
1006
1007 if (!dmi)
1008 return;
1009
1010 filter = (unsigned long)dmi->driver_data;
1011 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1012 filter, dmi->ident);
1013
1014 for (i = 0; i < host->n_ports; i++) {
1015 struct ata_port *ap = host->ports[i];
1016 struct ata_link *link;
1017 struct ata_device *dev;
1018
1019 ata_for_each_link(link, ap, EDGE)
1020 ata_for_each_dev(dev, link, ALL)
1021 dev->gtf_filter |= filter;
1022 }
1023 }
1024 #else
1025 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1026 {}
1027 #endif
1028
1029 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1030 {
1031 unsigned int board_id = ent->driver_data;
1032 struct ata_port_info pi = ahci_port_info[board_id];
1033 const struct ata_port_info *ppi[] = { &pi, NULL };
1034 struct device *dev = &pdev->dev;
1035 struct ahci_host_priv *hpriv;
1036 struct ata_host *host;
1037 int n_ports, i, rc;
1038 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1039
1040 VPRINTK("ENTER\n");
1041
1042 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1043
1044 ata_print_version_once(&pdev->dev, DRV_VERSION);
1045
1046 /* The AHCI driver can only drive the SATA ports, the PATA driver
1047 can drive them all so if both drivers are selected make sure
1048 AHCI stays out of the way */
1049 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1050 return -ENODEV;
1051
1052 /*
1053 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1054 * ahci, use ata_generic instead.
1055 */
1056 if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1057 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1058 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1059 pdev->subsystem_device == 0xcb89)
1060 return -ENODEV;
1061
1062 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1063 * At the moment, we can only use the AHCI mode. Let the users know
1064 * that for SAS drives they're out of luck.
1065 */
1066 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1067 dev_info(&pdev->dev,
1068 "PDC42819 can only drive SATA devices with this driver\n");
1069
1070 /* The Connext uses non-standard BAR */
1071 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1072 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1073
1074 /* acquire resources */
1075 rc = pcim_enable_device(pdev);
1076 if (rc)
1077 return rc;
1078
1079 /* AHCI controllers often implement SFF compatible interface.
1080 * Grab all PCI BARs just in case.
1081 */
1082 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1083 if (rc == -EBUSY)
1084 pcim_pin_device(pdev);
1085 if (rc)
1086 return rc;
1087
1088 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1089 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1090 u8 map;
1091
1092 /* ICH6s share the same PCI ID for both piix and ahci
1093 * modes. Enabling ahci mode while MAP indicates
1094 * combined mode is a bad idea. Yield to ata_piix.
1095 */
1096 pci_read_config_byte(pdev, ICH_MAP, &map);
1097 if (map & 0x3) {
1098 dev_info(&pdev->dev,
1099 "controller is in combined mode, can't enable AHCI mode\n");
1100 return -ENODEV;
1101 }
1102 }
1103
1104 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1105 if (!hpriv)
1106 return -ENOMEM;
1107 hpriv->flags |= (unsigned long)pi.private_data;
1108
1109 /* MCP65 revision A1 and A2 can't do MSI */
1110 if (board_id == board_ahci_mcp65 &&
1111 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1112 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1113
1114 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1115 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1116 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1117
1118 /* only some SB600s can do 64bit DMA */
1119 if (ahci_sb600_enable_64bit(pdev))
1120 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1121
1122 if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
1123 pci_intx(pdev, 1);
1124
1125 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1126
1127 /* save initial config */
1128 ahci_pci_save_initial_config(pdev, hpriv);
1129
1130 /* prepare host */
1131 if (hpriv->cap & HOST_CAP_NCQ) {
1132 pi.flags |= ATA_FLAG_NCQ;
1133 /*
1134 * Auto-activate optimization is supposed to be
1135 * supported on all AHCI controllers indicating NCQ
1136 * capability, but it seems to be broken on some
1137 * chipsets including NVIDIAs.
1138 */
1139 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1140 pi.flags |= ATA_FLAG_FPDMA_AA;
1141 }
1142
1143 if (hpriv->cap & HOST_CAP_PMP)
1144 pi.flags |= ATA_FLAG_PMP;
1145
1146 ahci_set_em_messages(hpriv, &pi);
1147
1148 if (ahci_broken_system_poweroff(pdev)) {
1149 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1150 dev_info(&pdev->dev,
1151 "quirky BIOS, skipping spindown on poweroff\n");
1152 }
1153
1154 if (ahci_broken_suspend(pdev)) {
1155 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1156 dev_warn(&pdev->dev,
1157 "BIOS update required for suspend/resume\n");
1158 }
1159
1160 if (ahci_broken_online(pdev)) {
1161 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1162 dev_info(&pdev->dev,
1163 "online status unreliable, applying workaround\n");
1164 }
1165
1166 /* CAP.NP sometimes indicate the index of the last enabled
1167 * port, at other times, that of the last possible port, so
1168 * determining the maximum port number requires looking at
1169 * both CAP.NP and port_map.
1170 */
1171 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1172
1173 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1174 if (!host)
1175 return -ENOMEM;
1176 host->private_data = hpriv;
1177
1178 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1179 host->flags |= ATA_HOST_PARALLEL_SCAN;
1180 else
1181 printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
1182
1183 if (pi.flags & ATA_FLAG_EM)
1184 ahci_reset_em(host);
1185
1186 for (i = 0; i < host->n_ports; i++) {
1187 struct ata_port *ap = host->ports[i];
1188
1189 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1190 ata_port_pbar_desc(ap, ahci_pci_bar,
1191 0x100 + ap->port_no * 0x80, "port");
1192
1193 /* set enclosure management message type */
1194 if (ap->flags & ATA_FLAG_EM)
1195 ap->em_message_type = hpriv->em_msg_type;
1196
1197
1198 /* disabled/not-implemented port */
1199 if (!(hpriv->port_map & (1 << i)))
1200 ap->ops = &ata_dummy_port_ops;
1201 }
1202
1203 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1204 ahci_p5wdh_workaround(host);
1205
1206 /* apply gtf filter quirk */
1207 ahci_gtf_filter_workaround(host);
1208
1209 /* initialize adapter */
1210 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1211 if (rc)
1212 return rc;
1213
1214 rc = ahci_pci_reset_controller(host);
1215 if (rc)
1216 return rc;
1217
1218 ahci_pci_init_controller(host);
1219 ahci_pci_print_info(host);
1220
1221 pci_set_master(pdev);
1222 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1223 &ahci_sht);
1224 }
1225
1226 static int __init ahci_init(void)
1227 {
1228 return pci_register_driver(&ahci_pci_driver);
1229 }
1230
1231 static void __exit ahci_exit(void)
1232 {
1233 pci_unregister_driver(&ahci_pci_driver);
1234 }
1235
1236
1237 MODULE_AUTHOR("Jeff Garzik");
1238 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1239 MODULE_LICENSE("GPL");
1240 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1241 MODULE_VERSION(DRV_VERSION);
1242
1243 module_init(ahci_init);
1244 module_exit(ahci_exit);