2 * ahci.c - AHCI SATA support
4 * Maintained by: Jeff Garzik <jgarzik@pobox.com>
5 * Please ALWAYS copy linux-ide@vger.kernel.org
8 * Copyright 2004-2005 Red Hat, Inc.
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)
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.
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.
26 * libata documentation is available via 'make {ps|pdf}docs',
27 * as Documentation/DocBook/libata.*
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
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>
51 #define DRV_NAME "ahci"
52 #define DRV_VERSION "3.0"
59 /* board IDs by feature in alphabetical order */
65 /* board IDs for specific chipsets in alphabetical order */
71 board_ahci_sb700, /* for SB700 and SB800 */
75 board_ahci_mcp_linux = board_ahci_mcp65,
76 board_ahci_mcp67 = board_ahci_mcp65,
77 board_ahci_mcp73 = board_ahci_mcp65,
78 board_ahci_mcp79 = board_ahci_mcp77,
81 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
82 static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
83 unsigned long deadline);
84 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
85 unsigned long deadline);
86 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
87 unsigned long deadline);
89 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
90 static int ahci_pci_device_resume(struct pci_dev *pdev);
93 static struct scsi_host_template ahci_sht = {
97 static struct ata_port_operations ahci_vt8251_ops = {
98 .inherits = &ahci_ops,
99 .hardreset = ahci_vt8251_hardreset,
102 static struct ata_port_operations ahci_p5wdh_ops = {
103 .inherits = &ahci_ops,
104 .hardreset = ahci_p5wdh_hardreset,
107 static struct ata_port_operations ahci_sb600_ops = {
108 .inherits = &ahci_ops,
109 .softreset = ahci_sb600_softreset,
110 .pmp_softreset = ahci_sb600_softreset,
113 #define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
115 static const struct ata_port_info ahci_port_info[] = {
119 .flags = AHCI_FLAG_COMMON,
120 .pio_mask = ATA_PIO4,
121 .udma_mask = ATA_UDMA6,
122 .port_ops = &ahci_ops,
124 [board_ahci_ign_iferr] =
126 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
127 .flags = AHCI_FLAG_COMMON,
128 .pio_mask = ATA_PIO4,
129 .udma_mask = ATA_UDMA6,
130 .port_ops = &ahci_ops,
132 [board_ahci_nosntf] =
134 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
135 .flags = AHCI_FLAG_COMMON,
136 .pio_mask = ATA_PIO4,
137 .udma_mask = ATA_UDMA6,
138 .port_ops = &ahci_ops,
140 [board_ahci_yes_fbs] =
142 AHCI_HFLAGS (AHCI_HFLAG_YES_FBS),
143 .flags = AHCI_FLAG_COMMON,
144 .pio_mask = ATA_PIO4,
145 .udma_mask = ATA_UDMA6,
146 .port_ops = &ahci_ops,
151 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
153 .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
154 .pio_mask = ATA_PIO4,
155 .udma_mask = ATA_UDMA6,
156 .port_ops = &ahci_ops,
160 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
161 .flags = AHCI_FLAG_COMMON,
162 .pio_mask = ATA_PIO4,
163 .udma_mask = ATA_UDMA6,
164 .port_ops = &ahci_ops,
168 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
169 .flags = AHCI_FLAG_COMMON,
170 .pio_mask = ATA_PIO4,
171 .udma_mask = ATA_UDMA6,
172 .port_ops = &ahci_ops,
176 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
177 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
178 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
179 .pio_mask = ATA_PIO4,
180 .udma_mask = ATA_UDMA6,
181 .port_ops = &ahci_ops,
185 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
186 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
187 AHCI_HFLAG_32BIT_ONLY),
188 .flags = AHCI_FLAG_COMMON,
189 .pio_mask = ATA_PIO4,
190 .udma_mask = ATA_UDMA6,
191 .port_ops = &ahci_sb600_ops,
193 [board_ahci_sb700] = /* for SB700 and SB800 */
195 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
196 .flags = AHCI_FLAG_COMMON,
197 .pio_mask = ATA_PIO4,
198 .udma_mask = ATA_UDMA6,
199 .port_ops = &ahci_sb600_ops,
201 [board_ahci_vt8251] =
203 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
204 .flags = AHCI_FLAG_COMMON,
205 .pio_mask = ATA_PIO4,
206 .udma_mask = ATA_UDMA6,
207 .port_ops = &ahci_vt8251_ops,
211 static const struct pci_device_id ahci_pci_tbl[] = {
213 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
214 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
215 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
216 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
217 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
218 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
219 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
220 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
221 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
222 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
223 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
224 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
225 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
226 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
227 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
228 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
229 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
230 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
231 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
232 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
233 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
234 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
235 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
236 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
237 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
238 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
239 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
240 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
241 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
242 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
243 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
244 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
245 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
246 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
247 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
248 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
249 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
250 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
251 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
252 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
253 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
254 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
255 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
256 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
257 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
258 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
259 { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
260 { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
261 { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
262 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
263 { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
264 { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
265 { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
266 { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
267 { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
268 { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
269 { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
271 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
272 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
273 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
276 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
277 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
278 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
279 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
280 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
281 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
282 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
285 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
286 /* AMD is using RAID class only for ahci controllers */
287 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
288 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
291 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
292 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
295 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
296 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
297 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
298 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
299 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
300 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
301 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
302 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
303 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
304 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
305 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
306 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
307 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
308 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
309 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
310 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
311 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
312 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
313 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
314 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
315 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
316 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
317 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
318 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
319 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
320 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
321 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
322 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
323 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
324 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
325 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
326 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
327 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
328 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
329 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
330 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
331 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
332 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
333 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
334 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
335 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
336 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
337 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
338 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
339 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
340 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
341 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
342 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
343 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
344 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
345 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
346 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
347 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
348 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
349 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
350 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
351 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
352 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
353 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
354 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
355 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
356 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
357 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
358 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
359 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
360 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
361 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
362 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
363 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
364 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
365 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
366 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
367 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
368 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
369 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
370 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
371 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
372 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
373 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
374 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
375 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
376 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
377 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
378 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
381 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
382 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
383 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
386 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
387 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
388 { PCI_DEVICE(0x1b4b, 0x9123),
389 .class = PCI_CLASS_STORAGE_SATA_AHCI,
390 .class_mask = 0xffffff,
391 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
392 { PCI_DEVICE(0x1b4b, 0x9125),
393 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
394 { PCI_DEVICE(0x1b4b, 0x91a3),
395 .driver_data = board_ahci_yes_fbs },
398 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
400 /* Generic, PCI class code for AHCI */
401 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
402 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
404 { } /* terminate list */
408 static struct pci_driver ahci_pci_driver = {
410 .id_table = ahci_pci_tbl,
411 .probe = ahci_init_one,
412 .remove = ata_pci_remove_one,
414 .suspend = ahci_pci_device_suspend,
415 .resume = ahci_pci_device_resume,
419 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
420 static int marvell_enable;
422 static int marvell_enable = 1;
424 module_param(marvell_enable, int, 0644);
425 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
428 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
429 struct ahci_host_priv *hpriv)
431 unsigned int force_port_map = 0;
432 unsigned int mask_port_map = 0;
434 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
435 dev_info(&pdev->dev, "JMB361 has only one port\n");
440 * Temporary Marvell 6145 hack: PATA port presence
441 * is asserted through the standard AHCI port
442 * presence register, as bit 4 (counting from 0)
444 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
445 if (pdev->device == 0x6121)
450 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
453 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
457 static int ahci_pci_reset_controller(struct ata_host *host)
459 struct pci_dev *pdev = to_pci_dev(host->dev);
461 ahci_reset_controller(host);
463 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
464 struct ahci_host_priv *hpriv = host->private_data;
468 pci_read_config_word(pdev, 0x92, &tmp16);
469 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
470 tmp16 |= hpriv->port_map;
471 pci_write_config_word(pdev, 0x92, tmp16);
478 static void ahci_pci_init_controller(struct ata_host *host)
480 struct ahci_host_priv *hpriv = host->private_data;
481 struct pci_dev *pdev = to_pci_dev(host->dev);
482 void __iomem *port_mmio;
486 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
487 if (pdev->device == 0x6121)
491 port_mmio = __ahci_port_base(host, mv);
493 writel(0, port_mmio + PORT_IRQ_MASK);
496 tmp = readl(port_mmio + PORT_IRQ_STAT);
497 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
499 writel(tmp, port_mmio + PORT_IRQ_STAT);
502 ahci_init_controller(host);
505 static int ahci_sb600_check_ready(struct ata_link *link)
507 void __iomem *port_mmio = ahci_port_base(link->ap);
508 u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
509 u32 irq_status = readl(port_mmio + PORT_IRQ_STAT);
512 * There is no need to check TFDATA if BAD PMP is found due to HW bug,
513 * which can save timeout delay.
515 if (irq_status & PORT_IRQ_BAD_PMP)
518 return ata_check_ready(status);
521 static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
522 unsigned long deadline)
524 struct ata_port *ap = link->ap;
525 void __iomem *port_mmio = ahci_port_base(ap);
526 int pmp = sata_srst_pmp(link);
532 rc = ahci_do_softreset(link, class, pmp, deadline,
533 ahci_sb600_check_ready);
536 * Soft reset fails on some ATI chips with IPMS set when PMP
537 * is enabled but SATA HDD/ODD is connected to SATA port,
538 * do soft reset again to port 0.
541 irq_sts = readl(port_mmio + PORT_IRQ_STAT);
542 if (irq_sts & PORT_IRQ_BAD_PMP) {
544 "applying SB600 PMP SRST workaround and retrying\n");
545 rc = ahci_do_softreset(link, class, 0, deadline,
553 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
554 unsigned long deadline)
556 struct ata_port *ap = link->ap;
562 ahci_stop_engine(ap);
564 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
565 deadline, &online, NULL);
567 ahci_start_engine(ap);
569 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
571 /* vt8251 doesn't clear BSY on signature FIS reception,
572 * request follow-up softreset.
574 return online ? -EAGAIN : rc;
577 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
578 unsigned long deadline)
580 struct ata_port *ap = link->ap;
581 struct ahci_port_priv *pp = ap->private_data;
582 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
583 struct ata_taskfile tf;
587 ahci_stop_engine(ap);
589 /* clear D2H reception area to properly wait for D2H FIS */
590 ata_tf_init(link->device, &tf);
592 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
594 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
595 deadline, &online, NULL);
597 ahci_start_engine(ap);
599 /* The pseudo configuration device on SIMG4726 attached to
600 * ASUS P5W-DH Deluxe doesn't send signature FIS after
601 * hardreset if no device is attached to the first downstream
602 * port && the pseudo device locks up on SRST w/ PMP==0. To
603 * work around this, wait for !BSY only briefly. If BSY isn't
604 * cleared, perform CLO and proceed to IDENTIFY (achieved by
605 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
607 * Wait for two seconds. Devices attached to downstream port
608 * which can't process the following IDENTIFY after this will
609 * have to be reset again. For most cases, this should
610 * suffice while making probing snappish enough.
613 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
616 ahci_kick_engine(ap);
622 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
624 struct ata_host *host = dev_get_drvdata(&pdev->dev);
625 struct ahci_host_priv *hpriv = host->private_data;
626 void __iomem *mmio = hpriv->mmio;
629 if (mesg.event & PM_EVENT_SUSPEND &&
630 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
632 "BIOS update required for suspend/resume\n");
636 if (mesg.event & PM_EVENT_SLEEP) {
637 /* AHCI spec rev1.1 section 8.3.3:
638 * Software must disable interrupts prior to requesting a
639 * transition of the HBA to D3 state.
641 ctl = readl(mmio + HOST_CTL);
643 writel(ctl, mmio + HOST_CTL);
644 readl(mmio + HOST_CTL); /* flush */
647 return ata_pci_device_suspend(pdev, mesg);
650 static int ahci_pci_device_resume(struct pci_dev *pdev)
652 struct ata_host *host = dev_get_drvdata(&pdev->dev);
655 rc = ata_pci_device_do_resume(pdev);
659 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
660 rc = ahci_pci_reset_controller(host);
664 ahci_pci_init_controller(host);
667 ata_host_resume(host);
673 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
678 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
679 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
681 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
684 "64-bit DMA enable failed\n");
689 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
691 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
694 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
697 "32-bit consistent DMA enable failed\n");
704 static void ahci_pci_print_info(struct ata_host *host)
706 struct pci_dev *pdev = to_pci_dev(host->dev);
710 pci_read_config_word(pdev, 0x0a, &cc);
711 if (cc == PCI_CLASS_STORAGE_IDE)
713 else if (cc == PCI_CLASS_STORAGE_SATA)
715 else if (cc == PCI_CLASS_STORAGE_RAID)
720 ahci_print_info(host, scc_s);
723 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
724 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
725 * support PMP and the 4726 either directly exports the device
726 * attached to the first downstream port or acts as a hardware storage
727 * controller and emulate a single ATA device (can be RAID 0/1 or some
728 * other configuration).
730 * When there's no device attached to the first downstream port of the
731 * 4726, "Config Disk" appears, which is a pseudo ATA device to
732 * configure the 4726. However, ATA emulation of the device is very
733 * lame. It doesn't send signature D2H Reg FIS after the initial
734 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
736 * The following function works around the problem by always using
737 * hardreset on the port and not depending on receiving signature FIS
738 * afterward. If signature FIS isn't received soon, ATA class is
739 * assumed without follow-up softreset.
741 static void ahci_p5wdh_workaround(struct ata_host *host)
743 static struct dmi_system_id sysids[] = {
745 .ident = "P5W DH Deluxe",
747 DMI_MATCH(DMI_SYS_VENDOR,
748 "ASUSTEK COMPUTER INC"),
749 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
754 struct pci_dev *pdev = to_pci_dev(host->dev);
756 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
757 dmi_check_system(sysids)) {
758 struct ata_port *ap = host->ports[1];
761 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
763 ap->ops = &ahci_p5wdh_ops;
764 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
768 /* only some SB600 ahci controllers can do 64bit DMA */
769 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
771 static const struct dmi_system_id sysids[] = {
773 * The oldest version known to be broken is 0901 and
774 * working is 1501 which was released on 2007-10-26.
775 * Enable 64bit DMA on 1501 and anything newer.
777 * Please read bko#9412 for more info.
780 .ident = "ASUS M2A-VM",
782 DMI_MATCH(DMI_BOARD_VENDOR,
783 "ASUSTeK Computer INC."),
784 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
786 .driver_data = "20071026", /* yyyymmdd */
789 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
792 * BIOS versions earlier than 1.5 had the Manufacturer DMI
793 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
794 * This spelling mistake was fixed in BIOS version 1.5, so
795 * 1.5 and later have the Manufacturer as
796 * "MICRO-STAR INTERNATIONAL CO.,LTD".
797 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
799 * BIOS versions earlier than 1.9 had a Board Product Name
800 * DMI field of "MS-7376". This was changed to be
801 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
802 * match on DMI_BOARD_NAME of "MS-7376".
805 .ident = "MSI K9A2 Platinum",
807 DMI_MATCH(DMI_BOARD_VENDOR,
809 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
814 const struct dmi_system_id *match;
815 int year, month, date;
818 match = dmi_first_match(sysids);
819 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
823 if (!match->driver_data)
826 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
827 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
829 if (strcmp(buf, match->driver_data) >= 0)
833 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
839 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
843 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
845 static const struct dmi_system_id broken_systems[] = {
847 .ident = "HP Compaq nx6310",
849 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
850 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
852 /* PCI slot number of the controller */
853 .driver_data = (void *)0x1FUL,
856 .ident = "HP Compaq 6720s",
858 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
859 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
861 /* PCI slot number of the controller */
862 .driver_data = (void *)0x1FUL,
865 { } /* terminate list */
867 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
870 unsigned long slot = (unsigned long)dmi->driver_data;
871 /* apply the quirk only to on-board controllers */
872 return slot == PCI_SLOT(pdev->devfn);
878 static bool ahci_broken_suspend(struct pci_dev *pdev)
880 static const struct dmi_system_id sysids[] = {
882 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
883 * to the harddisk doesn't become online after
884 * resuming from STR. Warn and fail suspend.
886 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
888 * Use dates instead of versions to match as HP is
889 * apparently recycling both product and version
892 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
897 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
898 DMI_MATCH(DMI_PRODUCT_NAME,
899 "HP Pavilion dv4 Notebook PC"),
901 .driver_data = "20090105", /* F.30 */
906 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
907 DMI_MATCH(DMI_PRODUCT_NAME,
908 "HP Pavilion dv5 Notebook PC"),
910 .driver_data = "20090506", /* F.16 */
915 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
916 DMI_MATCH(DMI_PRODUCT_NAME,
917 "HP Pavilion dv6 Notebook PC"),
919 .driver_data = "20090423", /* F.21 */
924 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
925 DMI_MATCH(DMI_PRODUCT_NAME,
926 "HP HDX18 Notebook PC"),
928 .driver_data = "20090430", /* F.23 */
931 * Acer eMachines G725 has the same problem. BIOS
932 * V1.03 is known to be broken. V3.04 is known to
933 * work. Between, there are V1.06, V2.06 and V3.03
934 * that we don't have much idea about. For now,
935 * blacklist anything older than V3.04.
937 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
942 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
943 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
945 .driver_data = "20091216", /* V3.04 */
947 { } /* terminate list */
949 const struct dmi_system_id *dmi = dmi_first_match(sysids);
950 int year, month, date;
953 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
956 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
957 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
959 return strcmp(buf, dmi->driver_data) < 0;
962 static bool ahci_broken_online(struct pci_dev *pdev)
964 #define ENCODE_BUSDEVFN(bus, slot, func) \
965 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
966 static const struct dmi_system_id sysids[] = {
968 * There are several gigabyte boards which use
969 * SIMG5723s configured as hardware RAID. Certain
970 * 5723 firmware revisions shipped there keep the link
971 * online but fail to answer properly to SRST or
972 * IDENTIFY when no device is attached downstream
973 * causing libata to retry quite a few times leading
974 * to excessive detection delay.
976 * As these firmwares respond to the second reset try
977 * with invalid device signature, considering unknown
978 * sig as offline works around the problem acceptably.
983 DMI_MATCH(DMI_BOARD_VENDOR,
984 "Gigabyte Technology Co., Ltd."),
985 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
987 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
992 DMI_MATCH(DMI_BOARD_VENDOR,
993 "Gigabyte Technology Co., Ltd."),
994 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
996 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
998 { } /* terminate list */
1000 #undef ENCODE_BUSDEVFN
1001 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1007 val = (unsigned long)dmi->driver_data;
1009 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1012 #ifdef CONFIG_ATA_ACPI
1013 static void ahci_gtf_filter_workaround(struct ata_host *host)
1015 static const struct dmi_system_id sysids[] = {
1017 * Aspire 3810T issues a bunch of SATA enable commands
1018 * via _GTF including an invalid one and one which is
1019 * rejected by the device. Among the successful ones
1020 * is FPDMA non-zero offset enable which when enabled
1021 * only on the drive side leads to NCQ command
1022 * failures. Filter it out.
1025 .ident = "Aspire 3810T",
1027 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1028 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1030 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1034 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1035 unsigned int filter;
1041 filter = (unsigned long)dmi->driver_data;
1042 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1043 filter, dmi->ident);
1045 for (i = 0; i < host->n_ports; i++) {
1046 struct ata_port *ap = host->ports[i];
1047 struct ata_link *link;
1048 struct ata_device *dev;
1050 ata_for_each_link(link, ap, EDGE)
1051 ata_for_each_dev(dev, link, ALL)
1052 dev->gtf_filter |= filter;
1056 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1060 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1062 unsigned int board_id = ent->driver_data;
1063 struct ata_port_info pi = ahci_port_info[board_id];
1064 const struct ata_port_info *ppi[] = { &pi, NULL };
1065 struct device *dev = &pdev->dev;
1066 struct ahci_host_priv *hpriv;
1067 struct ata_host *host;
1072 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1074 ata_print_version_once(&pdev->dev, DRV_VERSION);
1076 /* The AHCI driver can only drive the SATA ports, the PATA driver
1077 can drive them all so if both drivers are selected make sure
1078 AHCI stays out of the way */
1079 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1083 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1084 * ahci, use ata_generic instead.
1086 if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1087 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1088 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1089 pdev->subsystem_device == 0xcb89)
1092 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1093 * At the moment, we can only use the AHCI mode. Let the users know
1094 * that for SAS drives they're out of luck.
1096 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1097 dev_info(&pdev->dev,
1098 "PDC42819 can only drive SATA devices with this driver\n");
1100 /* acquire resources */
1101 rc = pcim_enable_device(pdev);
1105 /* AHCI controllers often implement SFF compatible interface.
1106 * Grab all PCI BARs just in case.
1108 rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
1110 pcim_pin_device(pdev);
1114 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1115 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1118 /* ICH6s share the same PCI ID for both piix and ahci
1119 * modes. Enabling ahci mode while MAP indicates
1120 * combined mode is a bad idea. Yield to ata_piix.
1122 pci_read_config_byte(pdev, ICH_MAP, &map);
1124 dev_info(&pdev->dev,
1125 "controller is in combined mode, can't enable AHCI mode\n");
1130 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1133 hpriv->flags |= (unsigned long)pi.private_data;
1135 /* MCP65 revision A1 and A2 can't do MSI */
1136 if (board_id == board_ahci_mcp65 &&
1137 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1138 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1140 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1141 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1142 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1144 /* only some SB600s can do 64bit DMA */
1145 if (ahci_sb600_enable_64bit(pdev))
1146 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1148 if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
1151 hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
1153 /* save initial config */
1154 ahci_pci_save_initial_config(pdev, hpriv);
1157 if (hpriv->cap & HOST_CAP_NCQ) {
1158 pi.flags |= ATA_FLAG_NCQ;
1160 * Auto-activate optimization is supposed to be
1161 * supported on all AHCI controllers indicating NCQ
1162 * capability, but it seems to be broken on some
1163 * chipsets including NVIDIAs.
1165 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1166 pi.flags |= ATA_FLAG_FPDMA_AA;
1169 if (hpriv->cap & HOST_CAP_PMP)
1170 pi.flags |= ATA_FLAG_PMP;
1172 ahci_set_em_messages(hpriv, &pi);
1174 if (ahci_broken_system_poweroff(pdev)) {
1175 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1176 dev_info(&pdev->dev,
1177 "quirky BIOS, skipping spindown on poweroff\n");
1180 if (ahci_broken_suspend(pdev)) {
1181 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1182 dev_warn(&pdev->dev,
1183 "BIOS update required for suspend/resume\n");
1186 if (ahci_broken_online(pdev)) {
1187 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1188 dev_info(&pdev->dev,
1189 "online status unreliable, applying workaround\n");
1192 /* CAP.NP sometimes indicate the index of the last enabled
1193 * port, at other times, that of the last possible port, so
1194 * determining the maximum port number requires looking at
1195 * both CAP.NP and port_map.
1197 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1199 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1202 host->private_data = hpriv;
1204 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1205 host->flags |= ATA_HOST_PARALLEL_SCAN;
1207 printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
1209 if (pi.flags & ATA_FLAG_EM)
1210 ahci_reset_em(host);
1212 for (i = 0; i < host->n_ports; i++) {
1213 struct ata_port *ap = host->ports[i];
1215 ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar");
1216 ata_port_pbar_desc(ap, AHCI_PCI_BAR,
1217 0x100 + ap->port_no * 0x80, "port");
1219 /* set enclosure management message type */
1220 if (ap->flags & ATA_FLAG_EM)
1221 ap->em_message_type = hpriv->em_msg_type;
1224 /* disabled/not-implemented port */
1225 if (!(hpriv->port_map & (1 << i)))
1226 ap->ops = &ata_dummy_port_ops;
1229 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1230 ahci_p5wdh_workaround(host);
1232 /* apply gtf filter quirk */
1233 ahci_gtf_filter_workaround(host);
1235 /* initialize adapter */
1236 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1240 rc = ahci_pci_reset_controller(host);
1244 ahci_pci_init_controller(host);
1245 ahci_pci_print_info(host);
1247 pci_set_master(pdev);
1248 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1252 static int __init ahci_init(void)
1254 return pci_register_driver(&ahci_pci_driver);
1257 static void __exit ahci_exit(void)
1259 pci_unregister_driver(&ahci_pci_driver);
1263 MODULE_AUTHOR("Jeff Garzik");
1264 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1265 MODULE_LICENSE("GPL");
1266 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1267 MODULE_VERSION(DRV_VERSION);
1269 module_init(ahci_init);
1270 module_exit(ahci_exit);