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 */
64 /* board IDs for specific chipsets in alphabetical order */
70 board_ahci_sb700, /* for SB700 and SB800 */
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,
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);
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);
92 static struct ata_port_operations ahci_vt8251_ops = {
93 .inherits = &ahci_ops,
94 .hardreset = ahci_vt8251_hardreset,
97 static struct ata_port_operations ahci_p5wdh_ops = {
98 .inherits = &ahci_ops,
99 .hardreset = ahci_p5wdh_hardreset,
102 static struct ata_port_operations ahci_sb600_ops = {
103 .inherits = &ahci_ops,
104 .softreset = ahci_sb600_softreset,
105 .pmp_softreset = ahci_sb600_softreset,
108 #define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
110 static const struct ata_port_info ahci_port_info[] = {
114 .flags = AHCI_FLAG_COMMON,
115 .pio_mask = ATA_PIO4,
116 .udma_mask = ATA_UDMA6,
117 .port_ops = &ahci_ops,
119 [board_ahci_ign_iferr] =
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,
127 [board_ahci_nosntf] =
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,
138 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
140 .flags = AHCI_FLAG_COMMON,
141 .pio_mask = ATA_PIO4,
142 .udma_mask = ATA_UDMA6,
143 .port_ops = &ahci_ops,
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,
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,
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,
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,
181 [board_ahci_sb700] = /* for SB700 and SB800 */
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,
189 [board_ahci_vt8251] =
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,
199 static const struct pci_device_id ahci_pci_tbl[] = {
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 */
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 },
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 */
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 },
268 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
269 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
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 */
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 */
363 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
364 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
367 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
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 },
373 { } /* terminate list */
377 static struct pci_driver ahci_pci_driver = {
379 .id_table = ahci_pci_tbl,
380 .probe = ahci_init_one,
381 .remove = ata_pci_remove_one,
383 .suspend = ahci_pci_device_suspend,
384 .resume = ahci_pci_device_resume,
388 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
389 static int marvell_enable;
391 static int marvell_enable = 1;
393 module_param(marvell_enable, int, 0644);
394 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
397 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
398 struct ahci_host_priv *hpriv)
400 unsigned int force_port_map = 0;
401 unsigned int mask_port_map = 0;
403 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
404 dev_info(&pdev->dev, "JMB361 has only one port\n");
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)
413 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
414 if (pdev->device == 0x6121)
419 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
422 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
426 static int ahci_pci_reset_controller(struct ata_host *host)
428 struct pci_dev *pdev = to_pci_dev(host->dev);
430 ahci_reset_controller(host);
432 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
433 struct ahci_host_priv *hpriv = host->private_data;
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);
447 static void ahci_pci_init_controller(struct ata_host *host)
449 struct ahci_host_priv *hpriv = host->private_data;
450 struct pci_dev *pdev = to_pci_dev(host->dev);
451 void __iomem *port_mmio;
455 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
456 if (pdev->device == 0x6121)
460 port_mmio = __ahci_port_base(host, mv);
462 writel(0, port_mmio + PORT_IRQ_MASK);
465 tmp = readl(port_mmio + PORT_IRQ_STAT);
466 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
468 writel(tmp, port_mmio + PORT_IRQ_STAT);
471 ahci_init_controller(host);
474 static int ahci_sb600_check_ready(struct ata_link *link)
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);
481 * There is no need to check TFDATA if BAD PMP is found due to HW bug,
482 * which can save timeout delay.
484 if (irq_status & PORT_IRQ_BAD_PMP)
487 return ata_check_ready(status);
490 static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
491 unsigned long deadline)
493 struct ata_port *ap = link->ap;
494 void __iomem *port_mmio = ahci_port_base(ap);
495 int pmp = sata_srst_pmp(link);
501 rc = ahci_do_softreset(link, class, pmp, deadline,
502 ahci_sb600_check_ready);
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.
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 "
515 rc = ahci_do_softreset(link, class, 0, deadline,
523 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
524 unsigned long deadline)
526 struct ata_port *ap = link->ap;
532 ahci_stop_engine(ap);
534 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
535 deadline, &online, NULL);
537 ahci_start_engine(ap);
539 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
541 /* vt8251 doesn't clear BSY on signature FIS reception,
542 * request follow-up softreset.
544 return online ? -EAGAIN : rc;
547 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
548 unsigned long deadline)
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;
557 ahci_stop_engine(ap);
559 /* clear D2H reception area to properly wait for D2H FIS */
560 ata_tf_init(link->device, &tf);
562 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
564 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
565 deadline, &online, NULL);
567 ahci_start_engine(ap);
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).
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.
583 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
586 ahci_kick_engine(ap);
592 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
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;
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");
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.
611 ctl = readl(mmio + HOST_CTL);
613 writel(ctl, mmio + HOST_CTL);
614 readl(mmio + HOST_CTL); /* flush */
617 return ata_pci_device_suspend(pdev, mesg);
620 static int ahci_pci_device_resume(struct pci_dev *pdev)
622 struct ata_host *host = dev_get_drvdata(&pdev->dev);
625 rc = ata_pci_device_do_resume(pdev);
629 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
630 rc = ahci_pci_reset_controller(host);
634 ahci_pci_init_controller(host);
637 ata_host_resume(host);
643 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
648 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
649 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
651 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
653 dev_printk(KERN_ERR, &pdev->dev,
654 "64-bit DMA enable failed\n");
659 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
661 dev_printk(KERN_ERR, &pdev->dev,
662 "32-bit DMA enable failed\n");
665 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
667 dev_printk(KERN_ERR, &pdev->dev,
668 "32-bit consistent DMA enable failed\n");
675 static void ahci_pci_print_info(struct ata_host *host)
677 struct pci_dev *pdev = to_pci_dev(host->dev);
681 pci_read_config_word(pdev, 0x0a, &cc);
682 if (cc == PCI_CLASS_STORAGE_IDE)
684 else if (cc == PCI_CLASS_STORAGE_SATA)
686 else if (cc == PCI_CLASS_STORAGE_RAID)
691 ahci_print_info(host, scc_s);
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).
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.
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.
712 static void ahci_p5wdh_workaround(struct ata_host *host)
714 static struct dmi_system_id sysids[] = {
716 .ident = "P5W DH Deluxe",
718 DMI_MATCH(DMI_SYS_VENDOR,
719 "ASUSTEK COMPUTER INC"),
720 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
725 struct pci_dev *pdev = to_pci_dev(host->dev);
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];
731 dev_printk(KERN_INFO, &pdev->dev, "enabling ASUS P5W DH "
732 "Deluxe on-board SIMG4726 workaround\n");
734 ap->ops = &ahci_p5wdh_ops;
735 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
739 /* only some SB600 ahci controllers can do 64bit DMA */
740 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
742 static const struct dmi_system_id sysids[] = {
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.
748 * Please read bko#9412 for more info.
751 .ident = "ASUS M2A-VM",
753 DMI_MATCH(DMI_BOARD_VENDOR,
754 "ASUSTeK Computer INC."),
755 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
757 .driver_data = "20071026", /* yyyymmdd */
760 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
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".
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".
776 .ident = "MSI K9A2 Platinum",
778 DMI_MATCH(DMI_BOARD_VENDOR,
780 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
785 const struct dmi_system_id *match;
786 int year, month, date;
789 match = dmi_first_match(sysids);
790 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
794 if (!match->driver_data)
797 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
798 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
800 if (strcmp(buf, match->driver_data) >= 0)
803 dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, "
804 "forcing 32bit DMA, update BIOS\n", match->ident);
809 dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
814 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
816 static const struct dmi_system_id broken_systems[] = {
818 .ident = "HP Compaq nx6310",
820 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
821 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
823 /* PCI slot number of the controller */
824 .driver_data = (void *)0x1FUL,
827 .ident = "HP Compaq 6720s",
829 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
830 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
832 /* PCI slot number of the controller */
833 .driver_data = (void *)0x1FUL,
836 { } /* terminate list */
838 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
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);
849 static bool ahci_broken_suspend(struct pci_dev *pdev)
851 static const struct dmi_system_id sysids[] = {
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.
857 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
859 * Use dates instead of versions to match as HP is
860 * apparently recycling both product and version
863 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
868 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
869 DMI_MATCH(DMI_PRODUCT_NAME,
870 "HP Pavilion dv4 Notebook PC"),
872 .driver_data = "20090105", /* F.30 */
877 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
878 DMI_MATCH(DMI_PRODUCT_NAME,
879 "HP Pavilion dv5 Notebook PC"),
881 .driver_data = "20090506", /* F.16 */
886 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
887 DMI_MATCH(DMI_PRODUCT_NAME,
888 "HP Pavilion dv6 Notebook PC"),
890 .driver_data = "20090423", /* F.21 */
895 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
896 DMI_MATCH(DMI_PRODUCT_NAME,
897 "HP HDX18 Notebook PC"),
899 .driver_data = "20090430", /* F.23 */
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.
908 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
913 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
914 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
916 .driver_data = "20091216", /* V3.04 */
918 { } /* terminate list */
920 const struct dmi_system_id *dmi = dmi_first_match(sysids);
921 int year, month, date;
924 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
927 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
928 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
930 return strcmp(buf, dmi->driver_data) < 0;
933 static bool ahci_broken_online(struct pci_dev *pdev)
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[] = {
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.
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.
954 DMI_MATCH(DMI_BOARD_VENDOR,
955 "Gigabyte Technology Co., Ltd."),
956 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
958 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
963 DMI_MATCH(DMI_BOARD_VENDOR,
964 "Gigabyte Technology Co., Ltd."),
965 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
967 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
969 { } /* terminate list */
971 #undef ENCODE_BUSDEVFN
972 const struct dmi_system_id *dmi = dmi_first_match(sysids);
978 val = (unsigned long)dmi->driver_data;
980 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
983 #ifdef CONFIG_ATA_ACPI
984 static void ahci_gtf_filter_workaround(struct ata_host *host)
986 static const struct dmi_system_id sysids[] = {
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.
996 .ident = "Aspire 3810T",
998 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
999 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1001 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1005 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1006 unsigned int filter;
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);
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;
1022 ata_for_each_link(link, ap, EDGE)
1023 ata_for_each_dev(dev, link, ALL)
1024 dev->gtf_filter |= filter;
1028 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1032 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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;
1045 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1047 if (!printed_version++)
1048 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
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)
1057 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1058 * ahci, use ata_generic instead.
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)
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.
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");
1074 /* acquire resources */
1075 rc = pcim_enable_device(pdev);
1079 /* AHCI controllers often implement SFF compatible interface.
1080 * Grab all PCI BARs just in case.
1082 rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
1084 pcim_pin_device(pdev);
1088 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1089 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
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.
1096 pci_read_config_byte(pdev, ICH_MAP, &map);
1098 dev_printk(KERN_INFO, &pdev->dev, "controller is in "
1099 "combined mode, can't enable AHCI mode\n");
1104 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1107 hpriv->flags |= (unsigned long)pi.private_data;
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;
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;
1118 /* only some SB600s can do 64bit DMA */
1119 if (ahci_sb600_enable_64bit(pdev))
1120 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1122 if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
1125 hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
1127 /* save initial config */
1128 ahci_pci_save_initial_config(pdev, hpriv);
1131 if (hpriv->cap & HOST_CAP_NCQ) {
1132 pi.flags |= ATA_FLAG_NCQ;
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.
1139 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1140 pi.flags |= ATA_FLAG_FPDMA_AA;
1143 if (hpriv->cap & HOST_CAP_PMP)
1144 pi.flags |= ATA_FLAG_PMP;
1146 ahci_set_em_messages(hpriv, &pi);
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");
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");
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");
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.
1171 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1173 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1176 host->private_data = hpriv;
1178 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1179 host->flags |= ATA_HOST_PARALLEL_SCAN;
1181 printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
1183 if (pi.flags & ATA_FLAG_EM)
1184 ahci_reset_em(host);
1186 for (i = 0; i < host->n_ports; i++) {
1187 struct ata_port *ap = host->ports[i];
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");
1193 /* set initial link pm policy */
1194 ap->pm_policy = NOT_AVAILABLE;
1196 /* set enclosure management message type */
1197 if (ap->flags & ATA_FLAG_EM)
1198 ap->em_message_type = hpriv->em_msg_type;
1201 /* disabled/not-implemented port */
1202 if (!(hpriv->port_map & (1 << i)))
1203 ap->ops = &ata_dummy_port_ops;
1206 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1207 ahci_p5wdh_workaround(host);
1209 /* apply gtf filter quirk */
1210 ahci_gtf_filter_workaround(host);
1212 /* initialize adapter */
1213 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1217 rc = ahci_pci_reset_controller(host);
1221 ahci_pci_init_controller(host);
1222 ahci_pci_print_info(host);
1224 pci_set_master(pdev);
1225 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1229 static int __init ahci_init(void)
1231 return pci_register_driver(&ahci_pci_driver);
1234 static void __exit ahci_exit(void)
1236 pci_unregister_driver(&ahci_pci_driver);
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);
1246 module_init(ahci_init);
1247 module_exit(ahci_exit);