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module: refactor load_module part 4
[deliverable/linux.git] / drivers / ata / ahci.c
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 = 5,
56 };
57
58 enum board_ids {
59 /* board IDs by feature in alphabetical order */
60 board_ahci,
61 board_ahci_ign_iferr,
62 board_ahci_nosntf,
63
64 /* board IDs for specific chipsets in alphabetical order */
65 board_ahci_mcp65,
66 board_ahci_mcp77,
67 board_ahci_mcp89,
68 board_ahci_mv,
69 board_ahci_sb600,
70 board_ahci_sb700, /* for SB700 and SB800 */
71 board_ahci_vt8251,
72
73 /* aliases */
74 board_ahci_mcp_linux = board_ahci_mcp65,
75 board_ahci_mcp67 = board_ahci_mcp65,
76 board_ahci_mcp73 = board_ahci_mcp65,
77 board_ahci_mcp79 = board_ahci_mcp77,
78 };
79
80 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
81 static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
82 unsigned long deadline);
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 ata_port_operations ahci_vt8251_ops = {
93 .inherits = &ahci_ops,
94 .hardreset = ahci_vt8251_hardreset,
95 };
96
97 static struct ata_port_operations ahci_p5wdh_ops = {
98 .inherits = &ahci_ops,
99 .hardreset = ahci_p5wdh_hardreset,
100 };
101
102 static struct ata_port_operations ahci_sb600_ops = {
103 .inherits = &ahci_ops,
104 .softreset = ahci_sb600_softreset,
105 .pmp_softreset = ahci_sb600_softreset,
106 };
107
108 #define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
109
110 static const struct ata_port_info ahci_port_info[] = {
111 /* by features */
112 [board_ahci] =
113 {
114 .flags = AHCI_FLAG_COMMON,
115 .pio_mask = ATA_PIO4,
116 .udma_mask = ATA_UDMA6,
117 .port_ops = &ahci_ops,
118 },
119 [board_ahci_ign_iferr] =
120 {
121 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
122 .flags = AHCI_FLAG_COMMON,
123 .pio_mask = ATA_PIO4,
124 .udma_mask = ATA_UDMA6,
125 .port_ops = &ahci_ops,
126 },
127 [board_ahci_nosntf] =
128 {
129 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
130 .flags = AHCI_FLAG_COMMON,
131 .pio_mask = ATA_PIO4,
132 .udma_mask = ATA_UDMA6,
133 .port_ops = &ahci_ops,
134 },
135 /* by chipsets */
136 [board_ahci_mcp65] =
137 {
138 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
139 AHCI_HFLAG_YES_NCQ),
140 .flags = AHCI_FLAG_COMMON,
141 .pio_mask = ATA_PIO4,
142 .udma_mask = ATA_UDMA6,
143 .port_ops = &ahci_ops,
144 },
145 [board_ahci_mcp77] =
146 {
147 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
148 .flags = AHCI_FLAG_COMMON,
149 .pio_mask = ATA_PIO4,
150 .udma_mask = ATA_UDMA6,
151 .port_ops = &ahci_ops,
152 },
153 [board_ahci_mcp89] =
154 {
155 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
156 .flags = AHCI_FLAG_COMMON,
157 .pio_mask = ATA_PIO4,
158 .udma_mask = ATA_UDMA6,
159 .port_ops = &ahci_ops,
160 },
161 [board_ahci_mv] =
162 {
163 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
164 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
165 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
166 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
167 .pio_mask = ATA_PIO4,
168 .udma_mask = ATA_UDMA6,
169 .port_ops = &ahci_ops,
170 },
171 [board_ahci_sb600] =
172 {
173 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
174 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
175 AHCI_HFLAG_32BIT_ONLY),
176 .flags = AHCI_FLAG_COMMON,
177 .pio_mask = ATA_PIO4,
178 .udma_mask = ATA_UDMA6,
179 .port_ops = &ahci_sb600_ops,
180 },
181 [board_ahci_sb700] = /* for SB700 and SB800 */
182 {
183 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
184 .flags = AHCI_FLAG_COMMON,
185 .pio_mask = ATA_PIO4,
186 .udma_mask = ATA_UDMA6,
187 .port_ops = &ahci_sb600_ops,
188 },
189 [board_ahci_vt8251] =
190 {
191 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
192 .flags = AHCI_FLAG_COMMON,
193 .pio_mask = ATA_PIO4,
194 .udma_mask = ATA_UDMA6,
195 .port_ops = &ahci_vt8251_ops,
196 },
197 };
198
199 static const struct pci_device_id ahci_pci_tbl[] = {
200 /* Intel */
201 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
202 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
203 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
204 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
205 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
206 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
207 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
208 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
209 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
210 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
211 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
212 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
213 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
214 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
215 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
216 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
217 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
218 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
219 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
220 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
221 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
222 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
223 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
224 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
225 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
226 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
227 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
228 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
229 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
230 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
231 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
232 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
233 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
234 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
235 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
236 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
237 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
238 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
239 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
240 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
241 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
242 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
243 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
244 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
245 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
246 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
247
248 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
249 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
250 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
251
252 /* ATI */
253 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
254 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
255 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
256 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
257 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
258 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
259 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
260
261 /* AMD */
262 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
263 /* AMD is using RAID class only for ahci controllers */
264 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
265 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
266
267 /* VIA */
268 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
269 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
270
271 /* NVIDIA */
272 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
273 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
274 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
275 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
276 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
277 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
278 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
279 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
280 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
281 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
282 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
283 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
284 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
285 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
286 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
287 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
288 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
289 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
290 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
291 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
292 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
293 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
294 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
295 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
296 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
297 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
298 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
299 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
300 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
301 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
302 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
303 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
304 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
305 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
306 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
307 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
308 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
309 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
310 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
311 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
312 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
313 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
314 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
315 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
316 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
317 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
318 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
319 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
320 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
321 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
322 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
323 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
324 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
325 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
326 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
327 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
328 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
329 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
330 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
331 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
332 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
333 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
334 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
335 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
336 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
337 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
338 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
339 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
340 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
341 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
342 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
343 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
344 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
345 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
346 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
347 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
348 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
349 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
350 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
351 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
352 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
353 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
354 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
355 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
356
357 /* SiS */
358 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
359 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
360 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
361
362 /* Marvell */
363 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
364 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
365
366 /* Promise */
367 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
368
369 /* Generic, PCI class code for AHCI */
370 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
371 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
372
373 { } /* terminate list */
374 };
375
376
377 static struct pci_driver ahci_pci_driver = {
378 .name = DRV_NAME,
379 .id_table = ahci_pci_tbl,
380 .probe = ahci_init_one,
381 .remove = ata_pci_remove_one,
382 #ifdef CONFIG_PM
383 .suspend = ahci_pci_device_suspend,
384 .resume = ahci_pci_device_resume,
385 #endif
386 };
387
388 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
389 static int marvell_enable;
390 #else
391 static int marvell_enable = 1;
392 #endif
393 module_param(marvell_enable, int, 0644);
394 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
395
396
397 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
398 struct ahci_host_priv *hpriv)
399 {
400 unsigned int force_port_map = 0;
401 unsigned int mask_port_map = 0;
402
403 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
404 dev_info(&pdev->dev, "JMB361 has only one port\n");
405 force_port_map = 1;
406 }
407
408 /*
409 * Temporary Marvell 6145 hack: PATA port presence
410 * is asserted through the standard AHCI port
411 * presence register, as bit 4 (counting from 0)
412 */
413 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
414 if (pdev->device == 0x6121)
415 mask_port_map = 0x3;
416 else
417 mask_port_map = 0xf;
418 dev_info(&pdev->dev,
419 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
420 }
421
422 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
423 mask_port_map);
424 }
425
426 static int ahci_pci_reset_controller(struct ata_host *host)
427 {
428 struct pci_dev *pdev = to_pci_dev(host->dev);
429
430 ahci_reset_controller(host);
431
432 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
433 struct ahci_host_priv *hpriv = host->private_data;
434 u16 tmp16;
435
436 /* configure PCS */
437 pci_read_config_word(pdev, 0x92, &tmp16);
438 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
439 tmp16 |= hpriv->port_map;
440 pci_write_config_word(pdev, 0x92, tmp16);
441 }
442 }
443
444 return 0;
445 }
446
447 static void ahci_pci_init_controller(struct ata_host *host)
448 {
449 struct ahci_host_priv *hpriv = host->private_data;
450 struct pci_dev *pdev = to_pci_dev(host->dev);
451 void __iomem *port_mmio;
452 u32 tmp;
453 int mv;
454
455 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
456 if (pdev->device == 0x6121)
457 mv = 2;
458 else
459 mv = 4;
460 port_mmio = __ahci_port_base(host, mv);
461
462 writel(0, port_mmio + PORT_IRQ_MASK);
463
464 /* clear port IRQ */
465 tmp = readl(port_mmio + PORT_IRQ_STAT);
466 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
467 if (tmp)
468 writel(tmp, port_mmio + PORT_IRQ_STAT);
469 }
470
471 ahci_init_controller(host);
472 }
473
474 static int ahci_sb600_check_ready(struct ata_link *link)
475 {
476 void __iomem *port_mmio = ahci_port_base(link->ap);
477 u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
478 u32 irq_status = readl(port_mmio + PORT_IRQ_STAT);
479
480 /*
481 * There is no need to check TFDATA if BAD PMP is found due to HW bug,
482 * which can save timeout delay.
483 */
484 if (irq_status & PORT_IRQ_BAD_PMP)
485 return -EIO;
486
487 return ata_check_ready(status);
488 }
489
490 static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
491 unsigned long deadline)
492 {
493 struct ata_port *ap = link->ap;
494 void __iomem *port_mmio = ahci_port_base(ap);
495 int pmp = sata_srst_pmp(link);
496 int rc;
497 u32 irq_sts;
498
499 DPRINTK("ENTER\n");
500
501 rc = ahci_do_softreset(link, class, pmp, deadline,
502 ahci_sb600_check_ready);
503
504 /*
505 * Soft reset fails on some ATI chips with IPMS set when PMP
506 * is enabled but SATA HDD/ODD is connected to SATA port,
507 * do soft reset again to port 0.
508 */
509 if (rc == -EIO) {
510 irq_sts = readl(port_mmio + PORT_IRQ_STAT);
511 if (irq_sts & PORT_IRQ_BAD_PMP) {
512 ata_link_printk(link, KERN_WARNING,
513 "applying SB600 PMP SRST workaround "
514 "and retrying\n");
515 rc = ahci_do_softreset(link, class, 0, deadline,
516 ahci_check_ready);
517 }
518 }
519
520 return rc;
521 }
522
523 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
524 unsigned long deadline)
525 {
526 struct ata_port *ap = link->ap;
527 bool online;
528 int rc;
529
530 DPRINTK("ENTER\n");
531
532 ahci_stop_engine(ap);
533
534 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
535 deadline, &online, NULL);
536
537 ahci_start_engine(ap);
538
539 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
540
541 /* vt8251 doesn't clear BSY on signature FIS reception,
542 * request follow-up softreset.
543 */
544 return online ? -EAGAIN : rc;
545 }
546
547 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
548 unsigned long deadline)
549 {
550 struct ata_port *ap = link->ap;
551 struct ahci_port_priv *pp = ap->private_data;
552 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
553 struct ata_taskfile tf;
554 bool online;
555 int rc;
556
557 ahci_stop_engine(ap);
558
559 /* clear D2H reception area to properly wait for D2H FIS */
560 ata_tf_init(link->device, &tf);
561 tf.command = 0x80;
562 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
563
564 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
565 deadline, &online, NULL);
566
567 ahci_start_engine(ap);
568
569 /* The pseudo configuration device on SIMG4726 attached to
570 * ASUS P5W-DH Deluxe doesn't send signature FIS after
571 * hardreset if no device is attached to the first downstream
572 * port && the pseudo device locks up on SRST w/ PMP==0. To
573 * work around this, wait for !BSY only briefly. If BSY isn't
574 * cleared, perform CLO and proceed to IDENTIFY (achieved by
575 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
576 *
577 * Wait for two seconds. Devices attached to downstream port
578 * which can't process the following IDENTIFY after this will
579 * have to be reset again. For most cases, this should
580 * suffice while making probing snappish enough.
581 */
582 if (online) {
583 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
584 ahci_check_ready);
585 if (rc)
586 ahci_kick_engine(ap);
587 }
588 return rc;
589 }
590
591 #ifdef CONFIG_PM
592 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
593 {
594 struct ata_host *host = dev_get_drvdata(&pdev->dev);
595 struct ahci_host_priv *hpriv = host->private_data;
596 void __iomem *mmio = hpriv->mmio;
597 u32 ctl;
598
599 if (mesg.event & PM_EVENT_SUSPEND &&
600 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
601 dev_printk(KERN_ERR, &pdev->dev,
602 "BIOS update required for suspend/resume\n");
603 return -EIO;
604 }
605
606 if (mesg.event & PM_EVENT_SLEEP) {
607 /* AHCI spec rev1.1 section 8.3.3:
608 * Software must disable interrupts prior to requesting a
609 * transition of the HBA to D3 state.
610 */
611 ctl = readl(mmio + HOST_CTL);
612 ctl &= ~HOST_IRQ_EN;
613 writel(ctl, mmio + HOST_CTL);
614 readl(mmio + HOST_CTL); /* flush */
615 }
616
617 return ata_pci_device_suspend(pdev, mesg);
618 }
619
620 static int ahci_pci_device_resume(struct pci_dev *pdev)
621 {
622 struct ata_host *host = dev_get_drvdata(&pdev->dev);
623 int rc;
624
625 rc = ata_pci_device_do_resume(pdev);
626 if (rc)
627 return rc;
628
629 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
630 rc = ahci_pci_reset_controller(host);
631 if (rc)
632 return rc;
633
634 ahci_pci_init_controller(host);
635 }
636
637 ata_host_resume(host);
638
639 return 0;
640 }
641 #endif
642
643 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
644 {
645 int rc;
646
647 if (using_dac &&
648 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
649 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
650 if (rc) {
651 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
652 if (rc) {
653 dev_printk(KERN_ERR, &pdev->dev,
654 "64-bit DMA enable failed\n");
655 return rc;
656 }
657 }
658 } else {
659 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
660 if (rc) {
661 dev_printk(KERN_ERR, &pdev->dev,
662 "32-bit DMA enable failed\n");
663 return rc;
664 }
665 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
666 if (rc) {
667 dev_printk(KERN_ERR, &pdev->dev,
668 "32-bit consistent DMA enable failed\n");
669 return rc;
670 }
671 }
672 return 0;
673 }
674
675 static void ahci_pci_print_info(struct ata_host *host)
676 {
677 struct pci_dev *pdev = to_pci_dev(host->dev);
678 u16 cc;
679 const char *scc_s;
680
681 pci_read_config_word(pdev, 0x0a, &cc);
682 if (cc == PCI_CLASS_STORAGE_IDE)
683 scc_s = "IDE";
684 else if (cc == PCI_CLASS_STORAGE_SATA)
685 scc_s = "SATA";
686 else if (cc == PCI_CLASS_STORAGE_RAID)
687 scc_s = "RAID";
688 else
689 scc_s = "unknown";
690
691 ahci_print_info(host, scc_s);
692 }
693
694 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
695 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
696 * support PMP and the 4726 either directly exports the device
697 * attached to the first downstream port or acts as a hardware storage
698 * controller and emulate a single ATA device (can be RAID 0/1 or some
699 * other configuration).
700 *
701 * When there's no device attached to the first downstream port of the
702 * 4726, "Config Disk" appears, which is a pseudo ATA device to
703 * configure the 4726. However, ATA emulation of the device is very
704 * lame. It doesn't send signature D2H Reg FIS after the initial
705 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
706 *
707 * The following function works around the problem by always using
708 * hardreset on the port and not depending on receiving signature FIS
709 * afterward. If signature FIS isn't received soon, ATA class is
710 * assumed without follow-up softreset.
711 */
712 static void ahci_p5wdh_workaround(struct ata_host *host)
713 {
714 static struct dmi_system_id sysids[] = {
715 {
716 .ident = "P5W DH Deluxe",
717 .matches = {
718 DMI_MATCH(DMI_SYS_VENDOR,
719 "ASUSTEK COMPUTER INC"),
720 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
721 },
722 },
723 { }
724 };
725 struct pci_dev *pdev = to_pci_dev(host->dev);
726
727 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
728 dmi_check_system(sysids)) {
729 struct ata_port *ap = host->ports[1];
730
731 dev_printk(KERN_INFO, &pdev->dev, "enabling ASUS P5W DH "
732 "Deluxe on-board SIMG4726 workaround\n");
733
734 ap->ops = &ahci_p5wdh_ops;
735 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
736 }
737 }
738
739 /* only some SB600 ahci controllers can do 64bit DMA */
740 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
741 {
742 static const struct dmi_system_id sysids[] = {
743 /*
744 * The oldest version known to be broken is 0901 and
745 * working is 1501 which was released on 2007-10-26.
746 * Enable 64bit DMA on 1501 and anything newer.
747 *
748 * Please read bko#9412 for more info.
749 */
750 {
751 .ident = "ASUS M2A-VM",
752 .matches = {
753 DMI_MATCH(DMI_BOARD_VENDOR,
754 "ASUSTeK Computer INC."),
755 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
756 },
757 .driver_data = "20071026", /* yyyymmdd */
758 },
759 /*
760 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
761 * support 64bit DMA.
762 *
763 * BIOS versions earlier than 1.5 had the Manufacturer DMI
764 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
765 * This spelling mistake was fixed in BIOS version 1.5, so
766 * 1.5 and later have the Manufacturer as
767 * "MICRO-STAR INTERNATIONAL CO.,LTD".
768 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
769 *
770 * BIOS versions earlier than 1.9 had a Board Product Name
771 * DMI field of "MS-7376". This was changed to be
772 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
773 * match on DMI_BOARD_NAME of "MS-7376".
774 */
775 {
776 .ident = "MSI K9A2 Platinum",
777 .matches = {
778 DMI_MATCH(DMI_BOARD_VENDOR,
779 "MICRO-STAR INTER"),
780 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
781 },
782 },
783 { }
784 };
785 const struct dmi_system_id *match;
786 int year, month, date;
787 char buf[9];
788
789 match = dmi_first_match(sysids);
790 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
791 !match)
792 return false;
793
794 if (!match->driver_data)
795 goto enable_64bit;
796
797 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
798 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
799
800 if (strcmp(buf, match->driver_data) >= 0)
801 goto enable_64bit;
802 else {
803 dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, "
804 "forcing 32bit DMA, update BIOS\n", match->ident);
805 return false;
806 }
807
808 enable_64bit:
809 dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
810 match->ident);
811 return true;
812 }
813
814 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
815 {
816 static const struct dmi_system_id broken_systems[] = {
817 {
818 .ident = "HP Compaq nx6310",
819 .matches = {
820 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
821 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
822 },
823 /* PCI slot number of the controller */
824 .driver_data = (void *)0x1FUL,
825 },
826 {
827 .ident = "HP Compaq 6720s",
828 .matches = {
829 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
830 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
831 },
832 /* PCI slot number of the controller */
833 .driver_data = (void *)0x1FUL,
834 },
835
836 { } /* terminate list */
837 };
838 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
839
840 if (dmi) {
841 unsigned long slot = (unsigned long)dmi->driver_data;
842 /* apply the quirk only to on-board controllers */
843 return slot == PCI_SLOT(pdev->devfn);
844 }
845
846 return false;
847 }
848
849 static bool ahci_broken_suspend(struct pci_dev *pdev)
850 {
851 static const struct dmi_system_id sysids[] = {
852 /*
853 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
854 * to the harddisk doesn't become online after
855 * resuming from STR. Warn and fail suspend.
856 *
857 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
858 *
859 * Use dates instead of versions to match as HP is
860 * apparently recycling both product and version
861 * strings.
862 *
863 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
864 */
865 {
866 .ident = "dv4",
867 .matches = {
868 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
869 DMI_MATCH(DMI_PRODUCT_NAME,
870 "HP Pavilion dv4 Notebook PC"),
871 },
872 .driver_data = "20090105", /* F.30 */
873 },
874 {
875 .ident = "dv5",
876 .matches = {
877 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
878 DMI_MATCH(DMI_PRODUCT_NAME,
879 "HP Pavilion dv5 Notebook PC"),
880 },
881 .driver_data = "20090506", /* F.16 */
882 },
883 {
884 .ident = "dv6",
885 .matches = {
886 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
887 DMI_MATCH(DMI_PRODUCT_NAME,
888 "HP Pavilion dv6 Notebook PC"),
889 },
890 .driver_data = "20090423", /* F.21 */
891 },
892 {
893 .ident = "HDX18",
894 .matches = {
895 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
896 DMI_MATCH(DMI_PRODUCT_NAME,
897 "HP HDX18 Notebook PC"),
898 },
899 .driver_data = "20090430", /* F.23 */
900 },
901 /*
902 * Acer eMachines G725 has the same problem. BIOS
903 * V1.03 is known to be broken. V3.04 is known to
904 * work. Inbetween, there are V1.06, V2.06 and V3.03
905 * that we don't have much idea about. For now,
906 * blacklist anything older than V3.04.
907 *
908 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
909 */
910 {
911 .ident = "G725",
912 .matches = {
913 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
914 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
915 },
916 .driver_data = "20091216", /* V3.04 */
917 },
918 { } /* terminate list */
919 };
920 const struct dmi_system_id *dmi = dmi_first_match(sysids);
921 int year, month, date;
922 char buf[9];
923
924 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
925 return false;
926
927 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
928 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
929
930 return strcmp(buf, dmi->driver_data) < 0;
931 }
932
933 static bool ahci_broken_online(struct pci_dev *pdev)
934 {
935 #define ENCODE_BUSDEVFN(bus, slot, func) \
936 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
937 static const struct dmi_system_id sysids[] = {
938 /*
939 * There are several gigabyte boards which use
940 * SIMG5723s configured as hardware RAID. Certain
941 * 5723 firmware revisions shipped there keep the link
942 * online but fail to answer properly to SRST or
943 * IDENTIFY when no device is attached downstream
944 * causing libata to retry quite a few times leading
945 * to excessive detection delay.
946 *
947 * As these firmwares respond to the second reset try
948 * with invalid device signature, considering unknown
949 * sig as offline works around the problem acceptably.
950 */
951 {
952 .ident = "EP45-DQ6",
953 .matches = {
954 DMI_MATCH(DMI_BOARD_VENDOR,
955 "Gigabyte Technology Co., Ltd."),
956 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
957 },
958 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
959 },
960 {
961 .ident = "EP45-DS5",
962 .matches = {
963 DMI_MATCH(DMI_BOARD_VENDOR,
964 "Gigabyte Technology Co., Ltd."),
965 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
966 },
967 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
968 },
969 { } /* terminate list */
970 };
971 #undef ENCODE_BUSDEVFN
972 const struct dmi_system_id *dmi = dmi_first_match(sysids);
973 unsigned int val;
974
975 if (!dmi)
976 return false;
977
978 val = (unsigned long)dmi->driver_data;
979
980 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
981 }
982
983 #ifdef CONFIG_ATA_ACPI
984 static void ahci_gtf_filter_workaround(struct ata_host *host)
985 {
986 static const struct dmi_system_id sysids[] = {
987 /*
988 * Aspire 3810T issues a bunch of SATA enable commands
989 * via _GTF including an invalid one and one which is
990 * rejected by the device. Among the successful ones
991 * is FPDMA non-zero offset enable which when enabled
992 * only on the drive side leads to NCQ command
993 * failures. Filter it out.
994 */
995 {
996 .ident = "Aspire 3810T",
997 .matches = {
998 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
999 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1000 },
1001 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1002 },
1003 { }
1004 };
1005 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1006 unsigned int filter;
1007 int i;
1008
1009 if (!dmi)
1010 return;
1011
1012 filter = (unsigned long)dmi->driver_data;
1013 dev_printk(KERN_INFO, host->dev,
1014 "applying extra ACPI _GTF filter 0x%x for %s\n",
1015 filter, dmi->ident);
1016
1017 for (i = 0; i < host->n_ports; i++) {
1018 struct ata_port *ap = host->ports[i];
1019 struct ata_link *link;
1020 struct ata_device *dev;
1021
1022 ata_for_each_link(link, ap, EDGE)
1023 ata_for_each_dev(dev, link, ALL)
1024 dev->gtf_filter |= filter;
1025 }
1026 }
1027 #else
1028 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1029 {}
1030 #endif
1031
1032 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1033 {
1034 static int printed_version;
1035 unsigned int board_id = ent->driver_data;
1036 struct ata_port_info pi = ahci_port_info[board_id];
1037 const struct ata_port_info *ppi[] = { &pi, NULL };
1038 struct device *dev = &pdev->dev;
1039 struct ahci_host_priv *hpriv;
1040 struct ata_host *host;
1041 int n_ports, i, rc;
1042
1043 VPRINTK("ENTER\n");
1044
1045 WARN_ON(ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1046
1047 if (!printed_version++)
1048 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
1049
1050 /* The AHCI driver can only drive the SATA ports, the PATA driver
1051 can drive them all so if both drivers are selected make sure
1052 AHCI stays out of the way */
1053 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1054 return -ENODEV;
1055
1056 /*
1057 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1058 * ahci, use ata_generic instead.
1059 */
1060 if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1061 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1062 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1063 pdev->subsystem_device == 0xcb89)
1064 return -ENODEV;
1065
1066 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1067 * At the moment, we can only use the AHCI mode. Let the users know
1068 * that for SAS drives they're out of luck.
1069 */
1070 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1071 dev_printk(KERN_INFO, &pdev->dev, "PDC42819 "
1072 "can only drive SATA devices with this driver\n");
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_printk(KERN_INFO, &pdev->dev, "controller is in "
1099 "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_printk(KERN_WARNING, &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 initial link pm policy */
1194 ap->pm_policy = NOT_AVAILABLE;
1195
1196 /* set enclosure management message type */
1197 if (ap->flags & ATA_FLAG_EM)
1198 ap->em_message_type = hpriv->em_msg_type;
1199
1200
1201 /* disabled/not-implemented port */
1202 if (!(hpriv->port_map & (1 << i)))
1203 ap->ops = &ata_dummy_port_ops;
1204 }
1205
1206 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1207 ahci_p5wdh_workaround(host);
1208
1209 /* apply gtf filter quirk */
1210 ahci_gtf_filter_workaround(host);
1211
1212 /* initialize adapter */
1213 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1214 if (rc)
1215 return rc;
1216
1217 rc = ahci_pci_reset_controller(host);
1218 if (rc)
1219 return rc;
1220
1221 ahci_pci_init_controller(host);
1222 ahci_pci_print_info(host);
1223
1224 pci_set_master(pdev);
1225 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1226 &ahci_sht);
1227 }
1228
1229 static int __init ahci_init(void)
1230 {
1231 return pci_register_driver(&ahci_pci_driver);
1232 }
1233
1234 static void __exit ahci_exit(void)
1235 {
1236 pci_unregister_driver(&ahci_pci_driver);
1237 }
1238
1239
1240 MODULE_AUTHOR("Jeff Garzik");
1241 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1242 MODULE_LICENSE("GPL");
1243 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1244 MODULE_VERSION(DRV_VERSION);
1245
1246 module_init(ahci_init);
1247 module_exit(ahci_exit);
Linux kernel - Deliverables
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