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virtio_ring: unify direct/indirect code paths.
[linux-2.6/btrfs-unstable.git] / drivers / ata / ahci.c
bloba0cc0edafc78e27a9b1cee2031d1a74e523425d2
1 /*
2 * ahci.c - AHCI SATA support
3 *
4 * Maintained by: Tejun Heo <tj@kernel.org>
5 * Please ALWAYS copy linux-ide@vger.kernel.org
6 * on emails.
7 *
8 * Copyright 2004-2005 Red Hat, Inc.
9 *
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 *
26 * libata documentation is available via 'make {ps|pdf}docs',
27 * as Documentation/DocBook/libata.*
28 *
29 * AHCI hardware documentation:
30 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
31 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
32 *
33 */
34
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/pci.h>
38 #include <linux/blkdev.h>
39 #include <linux/delay.h>
40 #include <linux/interrupt.h>
41 #include <linux/dma-mapping.h>
42 #include <linux/device.h>
43 #include <linux/dmi.h>
44 #include <linux/gfp.h>
45 #include <scsi/scsi_host.h>
46 #include <scsi/scsi_cmnd.h>
47 #include <linux/libata.h>
48 #include "ahci.h"
49
50 #define DRV_NAME "ahci"
51 #define DRV_VERSION "3.0"
52
53 enum {
54 AHCI_PCI_BAR_STA2X11 = 0,
55 AHCI_PCI_BAR_ENMOTUS = 2,
56 AHCI_PCI_BAR_STANDARD = 5,
57 };
58
59 enum board_ids {
60 /* board IDs by feature in alphabetical order */
61 board_ahci,
62 board_ahci_ign_iferr,
63 board_ahci_noncq,
64 board_ahci_nosntf,
65 board_ahci_yes_fbs,
66
67 /* board IDs for specific chipsets in alphabetical order */
68 board_ahci_mcp65,
69 board_ahci_mcp77,
70 board_ahci_mcp89,
71 board_ahci_mv,
72 board_ahci_sb600,
73 board_ahci_sb700, /* for SB700 and SB800 */
74 board_ahci_vt8251,
75
76 /* aliases */
77 board_ahci_mcp_linux = board_ahci_mcp65,
78 board_ahci_mcp67 = board_ahci_mcp65,
79 board_ahci_mcp73 = board_ahci_mcp65,
80 board_ahci_mcp79 = board_ahci_mcp77,
81 };
82
83 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
84 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
85 unsigned long deadline);
86 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
87 static bool is_mcp89_apple(struct pci_dev *pdev);
88 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
89 unsigned long deadline);
90 #ifdef CONFIG_PM
91 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
92 static int ahci_pci_device_resume(struct pci_dev *pdev);
93 #endif
94
95 static struct scsi_host_template ahci_sht = {
96 AHCI_SHT("ahci"),
97 };
98
99 static struct ata_port_operations ahci_vt8251_ops = {
100 .inherits = &ahci_ops,
101 .hardreset = ahci_vt8251_hardreset,
102 };
103
104 static struct ata_port_operations ahci_p5wdh_ops = {
105 .inherits = &ahci_ops,
106 .hardreset = ahci_p5wdh_hardreset,
107 };
108
109 static const struct ata_port_info ahci_port_info[] = {
110 /* by features */
111 [board_ahci] = {
112 .flags = AHCI_FLAG_COMMON,
113 .pio_mask = ATA_PIO4,
114 .udma_mask = ATA_UDMA6,
115 .port_ops = &ahci_ops,
116 },
117 [board_ahci_ign_iferr] = {
118 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
119 .flags = AHCI_FLAG_COMMON,
120 .pio_mask = ATA_PIO4,
121 .udma_mask = ATA_UDMA6,
122 .port_ops = &ahci_ops,
123 },
124 [board_ahci_noncq] = {
125 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ),
126 .flags = AHCI_FLAG_COMMON,
127 .pio_mask = ATA_PIO4,
128 .udma_mask = ATA_UDMA6,
129 .port_ops = &ahci_ops,
130 },
131 [board_ahci_nosntf] = {
132 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
133 .flags = AHCI_FLAG_COMMON,
134 .pio_mask = ATA_PIO4,
135 .udma_mask = ATA_UDMA6,
136 .port_ops = &ahci_ops,
137 },
138 [board_ahci_yes_fbs] = {
139 AHCI_HFLAGS (AHCI_HFLAG_YES_FBS),
140 .flags = AHCI_FLAG_COMMON,
141 .pio_mask = ATA_PIO4,
142 .udma_mask = ATA_UDMA6,
143 .port_ops = &ahci_ops,
144 },
145 /* by chipsets */
146 [board_ahci_mcp65] = {
147 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
148 AHCI_HFLAG_YES_NCQ),
149 .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
150 .pio_mask = ATA_PIO4,
151 .udma_mask = ATA_UDMA6,
152 .port_ops = &ahci_ops,
153 },
154 [board_ahci_mcp77] = {
155 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
156 .flags = AHCI_FLAG_COMMON,
157 .pio_mask = ATA_PIO4,
158 .udma_mask = ATA_UDMA6,
159 .port_ops = &ahci_ops,
160 },
161 [board_ahci_mcp89] = {
162 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
163 .flags = AHCI_FLAG_COMMON,
164 .pio_mask = ATA_PIO4,
165 .udma_mask = ATA_UDMA6,
166 .port_ops = &ahci_ops,
167 },
168 [board_ahci_mv] = {
169 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
170 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
171 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
172 .pio_mask = ATA_PIO4,
173 .udma_mask = ATA_UDMA6,
174 .port_ops = &ahci_ops,
175 },
176 [board_ahci_sb600] = {
177 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
178 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
179 AHCI_HFLAG_32BIT_ONLY),
180 .flags = AHCI_FLAG_COMMON,
181 .pio_mask = ATA_PIO4,
182 .udma_mask = ATA_UDMA6,
183 .port_ops = &ahci_pmp_retry_srst_ops,
184 },
185 [board_ahci_sb700] = { /* for SB700 and SB800 */
186 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
187 .flags = AHCI_FLAG_COMMON,
188 .pio_mask = ATA_PIO4,
189 .udma_mask = ATA_UDMA6,
190 .port_ops = &ahci_pmp_retry_srst_ops,
191 },
192 [board_ahci_vt8251] = {
193 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
194 .flags = AHCI_FLAG_COMMON,
195 .pio_mask = ATA_PIO4,
196 .udma_mask = ATA_UDMA6,
197 .port_ops = &ahci_vt8251_ops,
198 },
199 };
200
201 static const struct pci_device_id ahci_pci_tbl[] = {
202 /* Intel */
203 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
204 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
205 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
206 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
207 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
208 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
209 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
210 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
211 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
212 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
213 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
214 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
215 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
216 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
217 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
218 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
219 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
220 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
221 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
222 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
223 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
224 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
225 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
226 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
227 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
228 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
229 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
230 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
231 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
232 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
233 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
234 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
235 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
236 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
237 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
238 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
239 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
240 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
241 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
242 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
243 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
244 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
245 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
246 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
247 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
248 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
249 { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
250 { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
251 { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
252 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
253 { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
254 { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
255 { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
256 { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
257 { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
258 { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
259 { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
260 { PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
261 { PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
262 { PCI_VDEVICE(INTEL, 0x8c03), board_ahci }, /* Lynx Point AHCI */
263 { PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
264 { PCI_VDEVICE(INTEL, 0x8c05), board_ahci }, /* Lynx Point RAID */
265 { PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
266 { PCI_VDEVICE(INTEL, 0x8c07), board_ahci }, /* Lynx Point RAID */
267 { PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
268 { PCI_VDEVICE(INTEL, 0x8c0f), board_ahci }, /* Lynx Point RAID */
269 { PCI_VDEVICE(INTEL, 0x9c02), board_ahci }, /* Lynx Point-LP AHCI */
270 { PCI_VDEVICE(INTEL, 0x9c03), board_ahci }, /* Lynx Point-LP AHCI */
271 { PCI_VDEVICE(INTEL, 0x9c04), board_ahci }, /* Lynx Point-LP RAID */
272 { PCI_VDEVICE(INTEL, 0x9c05), board_ahci }, /* Lynx Point-LP RAID */
273 { PCI_VDEVICE(INTEL, 0x9c06), board_ahci }, /* Lynx Point-LP RAID */
274 { PCI_VDEVICE(INTEL, 0x9c07), board_ahci }, /* Lynx Point-LP RAID */
275 { PCI_VDEVICE(INTEL, 0x9c0e), board_ahci }, /* Lynx Point-LP RAID */
276 { PCI_VDEVICE(INTEL, 0x9c0f), board_ahci }, /* Lynx Point-LP RAID */
277 { PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
278 { PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
279 { PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
280 { PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
281 { PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
282 { PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
283 { PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
284 { PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
285 { PCI_VDEVICE(INTEL, 0x1f32), board_ahci }, /* Avoton AHCI */
286 { PCI_VDEVICE(INTEL, 0x1f33), board_ahci }, /* Avoton AHCI */
287 { PCI_VDEVICE(INTEL, 0x1f34), board_ahci }, /* Avoton RAID */
288 { PCI_VDEVICE(INTEL, 0x1f35), board_ahci }, /* Avoton RAID */
289 { PCI_VDEVICE(INTEL, 0x1f36), board_ahci }, /* Avoton RAID */
290 { PCI_VDEVICE(INTEL, 0x1f37), board_ahci }, /* Avoton RAID */
291 { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci }, /* Avoton RAID */
292 { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci }, /* Avoton RAID */
293 { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
294 { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
295 { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
296 { PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
297 { PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
298 { PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
299 { PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
300 { PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
301 { PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
302 { PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
303 { PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
304 { PCI_VDEVICE(INTEL, 0x9c83), board_ahci }, /* Wildcat Point-LP AHCI */
305 { PCI_VDEVICE(INTEL, 0x9c85), board_ahci }, /* Wildcat Point-LP RAID */
306 { PCI_VDEVICE(INTEL, 0x9c87), board_ahci }, /* Wildcat Point-LP RAID */
307 { PCI_VDEVICE(INTEL, 0x9c8f), board_ahci }, /* Wildcat Point-LP RAID */
308 { PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
309 { PCI_VDEVICE(INTEL, 0x8c83), board_ahci }, /* 9 Series AHCI */
310 { PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
311 { PCI_VDEVICE(INTEL, 0x8c85), board_ahci }, /* 9 Series RAID */
312 { PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
313 { PCI_VDEVICE(INTEL, 0x8c87), board_ahci }, /* 9 Series RAID */
314 { PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
315 { PCI_VDEVICE(INTEL, 0x8c8f), board_ahci }, /* 9 Series RAID */
316
317 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
318 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
319 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
320 /* JMicron 362B and 362C have an AHCI function with IDE class code */
321 { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
322 { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
323
324 /* ATI */
325 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
326 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
327 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
328 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
329 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
330 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
331 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
332
333 /* AMD */
334 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
335 { PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
336 /* AMD is using RAID class only for ahci controllers */
337 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
338 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
339
340 /* VIA */
341 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
342 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
343
344 /* NVIDIA */
345 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
346 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
347 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
348 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
349 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
350 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
351 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
352 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
353 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
354 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
355 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
356 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
357 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
358 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
359 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
360 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
361 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
362 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
363 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
364 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
365 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
366 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
367 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
368 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
369 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
370 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
371 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
372 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
373 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
374 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
375 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
376 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
377 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
378 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
379 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
380 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
381 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
382 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
383 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
384 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
385 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
386 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
387 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
388 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
389 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
390 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
391 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
392 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
393 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
394 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
395 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
396 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
397 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
398 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
399 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
400 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
401 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
402 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
403 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
404 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
405 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
406 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
407 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
408 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
409 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
410 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
411 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
412 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
413 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
414 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
415 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
416 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
417 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
418 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
419 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
420 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
421 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
422 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
423 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
424 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
425 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
426 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
427 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
428 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
429
430 /* SiS */
431 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
432 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
433 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
434
435 /* ST Microelectronics */
436 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
437
438 /* Marvell */
439 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
440 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
441 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
442 .class = PCI_CLASS_STORAGE_SATA_AHCI,
443 .class_mask = 0xffffff,
444 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
445 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
446 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
447 { PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
448 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
449 .driver_data = board_ahci_yes_fbs }, /* 88se9170 */
450 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
451 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
452 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
453 .driver_data = board_ahci_yes_fbs }, /* 88se9182 */
454 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
455 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
456 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
457 .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
458 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
459 .driver_data = board_ahci_yes_fbs },
460 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
461 .driver_data = board_ahci_yes_fbs },
462 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
463 .driver_data = board_ahci_yes_fbs },
464 { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
465 .driver_data = board_ahci_yes_fbs },
466
467 /* Promise */
468 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
469 { PCI_VDEVICE(PROMISE, 0x3781), board_ahci }, /* FastTrak TX8660 ahci-mode */
470
471 /* Asmedia */
472 { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
473 { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
474 { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
475 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
476
477 /*
478 * Samsung SSDs found on some macbooks. NCQ times out.
479 * https://bugzilla.kernel.org/show_bug.cgi?id=60731
480 */
481 { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_noncq },
482
483 /* Enmotus */
484 { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
485
486 /* Generic, PCI class code for AHCI */
487 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
488 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
489
490 { } /* terminate list */
491 };
492
493
494 static struct pci_driver ahci_pci_driver = {
495 .name = DRV_NAME,
496 .id_table = ahci_pci_tbl,
497 .probe = ahci_init_one,
498 .remove = ata_pci_remove_one,
499 #ifdef CONFIG_PM
500 .suspend = ahci_pci_device_suspend,
501 .resume = ahci_pci_device_resume,
502 #endif
503 };
504
505 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
506 static int marvell_enable;
507 #else
508 static int marvell_enable = 1;
509 #endif
510 module_param(marvell_enable, int, 0644);
511 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
512
513
514 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
515 struct ahci_host_priv *hpriv)
516 {
517 unsigned int force_port_map = 0;
518 unsigned int mask_port_map = 0;
519
520 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
521 dev_info(&pdev->dev, "JMB361 has only one port\n");
522 force_port_map = 1;
523 }
524
525 /*
526 * Temporary Marvell 6145 hack: PATA port presence
527 * is asserted through the standard AHCI port
528 * presence register, as bit 4 (counting from 0)
529 */
530 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
531 if (pdev->device == 0x6121)
532 mask_port_map = 0x3;
533 else
534 mask_port_map = 0xf;
535 dev_info(&pdev->dev,
536 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
537 }
538
539 ahci_save_initial_config(&pdev->dev, hpriv);
540 }
541
542 static int ahci_pci_reset_controller(struct ata_host *host)
543 {
544 struct pci_dev *pdev = to_pci_dev(host->dev);
545
546 ahci_reset_controller(host);
547
548 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
549 struct ahci_host_priv *hpriv = host->private_data;
550 u16 tmp16;
551
552 /* configure PCS */
553 pci_read_config_word(pdev, 0x92, &tmp16);
554 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
555 tmp16 |= hpriv->port_map;
556 pci_write_config_word(pdev, 0x92, tmp16);
557 }
558 }
559
560 return 0;
561 }
562
563 static void ahci_pci_init_controller(struct ata_host *host)
564 {
565 struct ahci_host_priv *hpriv = host->private_data;
566 struct pci_dev *pdev = to_pci_dev(host->dev);
567 void __iomem *port_mmio;
568 u32 tmp;
569 int mv;
570
571 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
572 if (pdev->device == 0x6121)
573 mv = 2;
574 else
575 mv = 4;
576 port_mmio = __ahci_port_base(host, mv);
577
578 writel(0, port_mmio + PORT_IRQ_MASK);
579
580 /* clear port IRQ */
581 tmp = readl(port_mmio + PORT_IRQ_STAT);
582 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
583 if (tmp)
584 writel(tmp, port_mmio + PORT_IRQ_STAT);
585 }
586
587 ahci_init_controller(host);
588 }
589
590 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
591 unsigned long deadline)
592 {
593 struct ata_port *ap = link->ap;
594 struct ahci_host_priv *hpriv = ap->host->private_data;
595 bool online;
596 int rc;
597
598 DPRINTK("ENTER\n");
599
600 ahci_stop_engine(ap);
601
602 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
603 deadline, &online, NULL);
604
605 hpriv->start_engine(ap);
606
607 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
608
609 /* vt8251 doesn't clear BSY on signature FIS reception,
610 * request follow-up softreset.
611 */
612 return online ? -EAGAIN : rc;
613 }
614
615 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
616 unsigned long deadline)
617 {
618 struct ata_port *ap = link->ap;
619 struct ahci_port_priv *pp = ap->private_data;
620 struct ahci_host_priv *hpriv = ap->host->private_data;
621 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
622 struct ata_taskfile tf;
623 bool online;
624 int rc;
625
626 ahci_stop_engine(ap);
627
628 /* clear D2H reception area to properly wait for D2H FIS */
629 ata_tf_init(link->device, &tf);
630 tf.command = ATA_BUSY;
631 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
632
633 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
634 deadline, &online, NULL);
635
636 hpriv->start_engine(ap);
637
638 /* The pseudo configuration device on SIMG4726 attached to
639 * ASUS P5W-DH Deluxe doesn't send signature FIS after
640 * hardreset if no device is attached to the first downstream
641 * port && the pseudo device locks up on SRST w/ PMP==0. To
642 * work around this, wait for !BSY only briefly. If BSY isn't
643 * cleared, perform CLO and proceed to IDENTIFY (achieved by
644 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
645 *
646 * Wait for two seconds. Devices attached to downstream port
647 * which can't process the following IDENTIFY after this will
648 * have to be reset again. For most cases, this should
649 * suffice while making probing snappish enough.
650 */
651 if (online) {
652 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
653 ahci_check_ready);
654 if (rc)
655 ahci_kick_engine(ap);
656 }
657 return rc;
658 }
659
660 #ifdef CONFIG_PM
661 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
662 {
663 struct ata_host *host = pci_get_drvdata(pdev);
664 struct ahci_host_priv *hpriv = host->private_data;
665 void __iomem *mmio = hpriv->mmio;
666 u32 ctl;
667
668 if (mesg.event & PM_EVENT_SUSPEND &&
669 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
670 dev_err(&pdev->dev,
671 "BIOS update required for suspend/resume\n");
672 return -EIO;
673 }
674
675 if (mesg.event & PM_EVENT_SLEEP) {
676 /* AHCI spec rev1.1 section 8.3.3:
677 * Software must disable interrupts prior to requesting a
678 * transition of the HBA to D3 state.
679 */
680 ctl = readl(mmio + HOST_CTL);
681 ctl &= ~HOST_IRQ_EN;
682 writel(ctl, mmio + HOST_CTL);
683 readl(mmio + HOST_CTL); /* flush */
684 }
685
686 return ata_pci_device_suspend(pdev, mesg);
687 }
688
689 static int ahci_pci_device_resume(struct pci_dev *pdev)
690 {
691 struct ata_host *host = pci_get_drvdata(pdev);
692 int rc;
693
694 rc = ata_pci_device_do_resume(pdev);
695 if (rc)
696 return rc;
697
698 /* Apple BIOS helpfully mangles the registers on resume */
699 if (is_mcp89_apple(pdev))
700 ahci_mcp89_apple_enable(pdev);
701
702 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
703 rc = ahci_pci_reset_controller(host);
704 if (rc)
705 return rc;
706
707 ahci_pci_init_controller(host);
708 }
709
710 ata_host_resume(host);
711
712 return 0;
713 }
714 #endif
715
716 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
717 {
718 int rc;
719
720 /*
721 * If the device fixup already set the dma_mask to some non-standard
722 * value, don't extend it here. This happens on STA2X11, for example.
723 */
724 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
725 return 0;
726
727 if (using_dac &&
728 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
729 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
730 if (rc) {
731 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
732 if (rc) {
733 dev_err(&pdev->dev,
734 "64-bit DMA enable failed\n");
735 return rc;
736 }
737 }
738 } else {
739 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
740 if (rc) {
741 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
742 return rc;
743 }
744 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
745 if (rc) {
746 dev_err(&pdev->dev,
747 "32-bit consistent DMA enable failed\n");
748 return rc;
749 }
750 }
751 return 0;
752 }
753
754 static void ahci_pci_print_info(struct ata_host *host)
755 {
756 struct pci_dev *pdev = to_pci_dev(host->dev);
757 u16 cc;
758 const char *scc_s;
759
760 pci_read_config_word(pdev, 0x0a, &cc);
761 if (cc == PCI_CLASS_STORAGE_IDE)
762 scc_s = "IDE";
763 else if (cc == PCI_CLASS_STORAGE_SATA)
764 scc_s = "SATA";
765 else if (cc == PCI_CLASS_STORAGE_RAID)
766 scc_s = "RAID";
767 else
768 scc_s = "unknown";
769
770 ahci_print_info(host, scc_s);
771 }
772
773 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
774 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
775 * support PMP and the 4726 either directly exports the device
776 * attached to the first downstream port or acts as a hardware storage
777 * controller and emulate a single ATA device (can be RAID 0/1 or some
778 * other configuration).
779 *
780 * When there's no device attached to the first downstream port of the
781 * 4726, "Config Disk" appears, which is a pseudo ATA device to
782 * configure the 4726. However, ATA emulation of the device is very
783 * lame. It doesn't send signature D2H Reg FIS after the initial
784 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
785 *
786 * The following function works around the problem by always using
787 * hardreset on the port and not depending on receiving signature FIS
788 * afterward. If signature FIS isn't received soon, ATA class is
789 * assumed without follow-up softreset.
790 */
791 static void ahci_p5wdh_workaround(struct ata_host *host)
792 {
793 static struct dmi_system_id sysids[] = {
794 {
795 .ident = "P5W DH Deluxe",
796 .matches = {
797 DMI_MATCH(DMI_SYS_VENDOR,
798 "ASUSTEK COMPUTER INC"),
799 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
800 },
801 },
802 { }
803 };
804 struct pci_dev *pdev = to_pci_dev(host->dev);
805
806 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
807 dmi_check_system(sysids)) {
808 struct ata_port *ap = host->ports[1];
809
810 dev_info(&pdev->dev,
811 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
812
813 ap->ops = &ahci_p5wdh_ops;
814 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
815 }
816 }
817
818 /*
819 * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
820 * booting in BIOS compatibility mode. We restore the registers but not ID.
821 */
822 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
823 {
824 u32 val;
825
826 printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
827
828 pci_read_config_dword(pdev, 0xf8, &val);
829 val |= 1 << 0x1b;
830 /* the following changes the device ID, but appears not to affect function */
831 /* val = (val & ~0xf0000000) | 0x80000000; */
832 pci_write_config_dword(pdev, 0xf8, val);
833
834 pci_read_config_dword(pdev, 0x54c, &val);
835 val |= 1 << 0xc;
836 pci_write_config_dword(pdev, 0x54c, val);
837
838 pci_read_config_dword(pdev, 0x4a4, &val);
839 val &= 0xff;
840 val |= 0x01060100;
841 pci_write_config_dword(pdev, 0x4a4, val);
842
843 pci_read_config_dword(pdev, 0x54c, &val);
844 val &= ~(1 << 0xc);
845 pci_write_config_dword(pdev, 0x54c, val);
846
847 pci_read_config_dword(pdev, 0xf8, &val);
848 val &= ~(1 << 0x1b);
849 pci_write_config_dword(pdev, 0xf8, val);
850 }
851
852 static bool is_mcp89_apple(struct pci_dev *pdev)
853 {
854 return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
855 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
856 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
857 pdev->subsystem_device == 0xcb89;
858 }
859
860 /* only some SB600 ahci controllers can do 64bit DMA */
861 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
862 {
863 static const struct dmi_system_id sysids[] = {
864 /*
865 * The oldest version known to be broken is 0901 and
866 * working is 1501 which was released on 2007-10-26.
867 * Enable 64bit DMA on 1501 and anything newer.
868 *
869 * Please read bko#9412 for more info.
870 */
871 {
872 .ident = "ASUS M2A-VM",
873 .matches = {
874 DMI_MATCH(DMI_BOARD_VENDOR,
875 "ASUSTeK Computer INC."),
876 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
877 },
878 .driver_data = "20071026", /* yyyymmdd */
879 },
880 /*
881 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
882 * support 64bit DMA.
883 *
884 * BIOS versions earlier than 1.5 had the Manufacturer DMI
885 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
886 * This spelling mistake was fixed in BIOS version 1.5, so
887 * 1.5 and later have the Manufacturer as
888 * "MICRO-STAR INTERNATIONAL CO.,LTD".
889 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
890 *
891 * BIOS versions earlier than 1.9 had a Board Product Name
892 * DMI field of "MS-7376". This was changed to be
893 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
894 * match on DMI_BOARD_NAME of "MS-7376".
895 */
896 {
897 .ident = "MSI K9A2 Platinum",
898 .matches = {
899 DMI_MATCH(DMI_BOARD_VENDOR,
900 "MICRO-STAR INTER"),
901 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
902 },
903 },
904 /*
905 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
906 * 64bit DMA.
907 *
908 * This board also had the typo mentioned above in the
909 * Manufacturer DMI field (fixed in BIOS version 1.5), so
910 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
911 */
912 {
913 .ident = "MSI K9AGM2",
914 .matches = {
915 DMI_MATCH(DMI_BOARD_VENDOR,
916 "MICRO-STAR INTER"),
917 DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
918 },
919 },
920 /*
921 * All BIOS versions for the Asus M3A support 64bit DMA.
922 * (all release versions from 0301 to 1206 were tested)
923 */
924 {
925 .ident = "ASUS M3A",
926 .matches = {
927 DMI_MATCH(DMI_BOARD_VENDOR,
928 "ASUSTeK Computer INC."),
929 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
930 },
931 },
932 { }
933 };
934 const struct dmi_system_id *match;
935 int year, month, date;
936 char buf[9];
937
938 match = dmi_first_match(sysids);
939 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
940 !match)
941 return false;
942
943 if (!match->driver_data)
944 goto enable_64bit;
945
946 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
947 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
948
949 if (strcmp(buf, match->driver_data) >= 0)
950 goto enable_64bit;
951 else {
952 dev_warn(&pdev->dev,
953 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
954 match->ident);
955 return false;
956 }
957
958 enable_64bit:
959 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
960 return true;
961 }
962
963 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
964 {
965 static const struct dmi_system_id broken_systems[] = {
966 {
967 .ident = "HP Compaq nx6310",
968 .matches = {
969 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
970 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
971 },
972 /* PCI slot number of the controller */
973 .driver_data = (void *)0x1FUL,
974 },
975 {
976 .ident = "HP Compaq 6720s",
977 .matches = {
978 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
979 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
980 },
981 /* PCI slot number of the controller */
982 .driver_data = (void *)0x1FUL,
983 },
984
985 { } /* terminate list */
986 };
987 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
988
989 if (dmi) {
990 unsigned long slot = (unsigned long)dmi->driver_data;
991 /* apply the quirk only to on-board controllers */
992 return slot == PCI_SLOT(pdev->devfn);
993 }
994
995 return false;
996 }
997
998 static bool ahci_broken_suspend(struct pci_dev *pdev)
999 {
1000 static const struct dmi_system_id sysids[] = {
1001 /*
1002 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1003 * to the harddisk doesn't become online after
1004 * resuming from STR. Warn and fail suspend.
1005 *
1006 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1007 *
1008 * Use dates instead of versions to match as HP is
1009 * apparently recycling both product and version
1010 * strings.
1011 *
1012 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1013 */
1014 {
1015 .ident = "dv4",
1016 .matches = {
1017 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1018 DMI_MATCH(DMI_PRODUCT_NAME,
1019 "HP Pavilion dv4 Notebook PC"),
1020 },
1021 .driver_data = "20090105", /* F.30 */
1022 },
1023 {
1024 .ident = "dv5",
1025 .matches = {
1026 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1027 DMI_MATCH(DMI_PRODUCT_NAME,
1028 "HP Pavilion dv5 Notebook PC"),
1029 },
1030 .driver_data = "20090506", /* F.16 */
1031 },
1032 {
1033 .ident = "dv6",
1034 .matches = {
1035 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1036 DMI_MATCH(DMI_PRODUCT_NAME,
1037 "HP Pavilion dv6 Notebook PC"),
1038 },
1039 .driver_data = "20090423", /* F.21 */
1040 },
1041 {
1042 .ident = "HDX18",
1043 .matches = {
1044 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1045 DMI_MATCH(DMI_PRODUCT_NAME,
1046 "HP HDX18 Notebook PC"),
1047 },
1048 .driver_data = "20090430", /* F.23 */
1049 },
1050 /*
1051 * Acer eMachines G725 has the same problem. BIOS
1052 * V1.03 is known to be broken. V3.04 is known to
1053 * work. Between, there are V1.06, V2.06 and V3.03
1054 * that we don't have much idea about. For now,
1055 * blacklist anything older than V3.04.
1056 *
1057 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1058 */
1059 {
1060 .ident = "G725",
1061 .matches = {
1062 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1063 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1064 },
1065 .driver_data = "20091216", /* V3.04 */
1066 },
1067 { } /* terminate list */
1068 };
1069 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1070 int year, month, date;
1071 char buf[9];
1072
1073 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1074 return false;
1075
1076 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1077 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1078
1079 return strcmp(buf, dmi->driver_data) < 0;
1080 }
1081
1082 static bool ahci_broken_online(struct pci_dev *pdev)
1083 {
1084 #define ENCODE_BUSDEVFN(bus, slot, func) \
1085 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1086 static const struct dmi_system_id sysids[] = {
1087 /*
1088 * There are several gigabyte boards which use
1089 * SIMG5723s configured as hardware RAID. Certain
1090 * 5723 firmware revisions shipped there keep the link
1091 * online but fail to answer properly to SRST or
1092 * IDENTIFY when no device is attached downstream
1093 * causing libata to retry quite a few times leading
1094 * to excessive detection delay.
1095 *
1096 * As these firmwares respond to the second reset try
1097 * with invalid device signature, considering unknown
1098 * sig as offline works around the problem acceptably.
1099 */
1100 {
1101 .ident = "EP45-DQ6",
1102 .matches = {
1103 DMI_MATCH(DMI_BOARD_VENDOR,
1104 "Gigabyte Technology Co., Ltd."),
1105 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1106 },
1107 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1108 },
1109 {
1110 .ident = "EP45-DS5",
1111 .matches = {
1112 DMI_MATCH(DMI_BOARD_VENDOR,
1113 "Gigabyte Technology Co., Ltd."),
1114 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1115 },
1116 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1117 },
1118 { } /* terminate list */
1119 };
1120 #undef ENCODE_BUSDEVFN
1121 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1122 unsigned int val;
1123
1124 if (!dmi)
1125 return false;
1126
1127 val = (unsigned long)dmi->driver_data;
1128
1129 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1130 }
1131
1132 static bool ahci_broken_devslp(struct pci_dev *pdev)
1133 {
1134 /* device with broken DEVSLP but still showing SDS capability */
1135 static const struct pci_device_id ids[] = {
1136 { PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1137 {}
1138 };
1139
1140 return pci_match_id(ids, pdev);
1141 }
1142
1143 #ifdef CONFIG_ATA_ACPI
1144 static void ahci_gtf_filter_workaround(struct ata_host *host)
1145 {
1146 static const struct dmi_system_id sysids[] = {
1147 /*
1148 * Aspire 3810T issues a bunch of SATA enable commands
1149 * via _GTF including an invalid one and one which is
1150 * rejected by the device. Among the successful ones
1151 * is FPDMA non-zero offset enable which when enabled
1152 * only on the drive side leads to NCQ command
1153 * failures. Filter it out.
1154 */
1155 {
1156 .ident = "Aspire 3810T",
1157 .matches = {
1158 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1159 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1160 },
1161 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1162 },
1163 { }
1164 };
1165 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1166 unsigned int filter;
1167 int i;
1168
1169 if (!dmi)
1170 return;
1171
1172 filter = (unsigned long)dmi->driver_data;
1173 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1174 filter, dmi->ident);
1175
1176 for (i = 0; i < host->n_ports; i++) {
1177 struct ata_port *ap = host->ports[i];
1178 struct ata_link *link;
1179 struct ata_device *dev;
1180
1181 ata_for_each_link(link, ap, EDGE)
1182 ata_for_each_dev(dev, link, ALL)
1183 dev->gtf_filter |= filter;
1184 }
1185 }
1186 #else
1187 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1188 {}
1189 #endif
1190
1191 static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
1192 struct ahci_host_priv *hpriv)
1193 {
1194 int rc, nvec;
1195
1196 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1197 goto intx;
1198
1199 nvec = pci_msi_vec_count(pdev);
1200 if (nvec < 0)
1201 goto intx;
1202
1203 /*
1204 * If number of MSIs is less than number of ports then Sharing Last
1205 * Message mode could be enforced. In this case assume that advantage
1206 * of multipe MSIs is negated and use single MSI mode instead.
1207 */
1208 if (nvec < n_ports)
1209 goto single_msi;
1210
1211 rc = pci_enable_msi_exact(pdev, nvec);
1212 if (rc == -ENOSPC)
1213 goto single_msi;
1214 else if (rc < 0)
1215 goto intx;
1216
1217 /* fallback to single MSI mode if the controller enforced MRSM mode */
1218 if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
1219 pci_disable_msi(pdev);
1220 printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
1221 goto single_msi;
1222 }
1223
1224 return nvec;
1225
1226 single_msi:
1227 if (pci_enable_msi(pdev))
1228 goto intx;
1229 return 1;
1230
1231 intx:
1232 pci_intx(pdev, 1);
1233 return 0;
1234 }
1235
1236 /**
1237 * ahci_host_activate - start AHCI host, request IRQs and register it
1238 * @host: target ATA host
1239 * @irq: base IRQ number to request
1240 * @n_msis: number of MSIs allocated for this host
1241 * @irq_handler: irq_handler used when requesting IRQs
1242 * @irq_flags: irq_flags used when requesting IRQs
1243 *
1244 * Similar to ata_host_activate, but requests IRQs according to AHCI-1.1
1245 * when multiple MSIs were allocated. That is one MSI per port, starting
1246 * from @irq.
1247 *
1248 * LOCKING:
1249 * Inherited from calling layer (may sleep).
1250 *
1251 * RETURNS:
1252 * 0 on success, -errno otherwise.
1253 */
1254 int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis)
1255 {
1256 int i, rc;
1257
1258 /* Sharing Last Message among several ports is not supported */
1259 if (n_msis < host->n_ports)
1260 return -EINVAL;
1261
1262 rc = ata_host_start(host);
1263 if (rc)
1264 return rc;
1265
1266 for (i = 0; i < host->n_ports; i++) {
1267 struct ahci_port_priv *pp = host->ports[i]->private_data;
1268
1269 /* Do not receive interrupts sent by dummy ports */
1270 if (!pp) {
1271 disable_irq(irq + i);
1272 continue;
1273 }
1274
1275 rc = devm_request_threaded_irq(host->dev, irq + i,
1276 ahci_hw_interrupt,
1277 ahci_thread_fn, IRQF_SHARED,
1278 pp->irq_desc, host->ports[i]);
1279 if (rc)
1280 goto out_free_irqs;
1281 }
1282
1283 for (i = 0; i < host->n_ports; i++)
1284 ata_port_desc(host->ports[i], "irq %d", irq + i);
1285
1286 rc = ata_host_register(host, &ahci_sht);
1287 if (rc)
1288 goto out_free_all_irqs;
1289
1290 return 0;
1291
1292 out_free_all_irqs:
1293 i = host->n_ports;
1294 out_free_irqs:
1295 for (i--; i >= 0; i--)
1296 devm_free_irq(host->dev, irq + i, host->ports[i]);
1297
1298 return rc;
1299 }
1300
1301 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1302 {
1303 unsigned int board_id = ent->driver_data;
1304 struct ata_port_info pi = ahci_port_info[board_id];
1305 const struct ata_port_info *ppi[] = { &pi, NULL };
1306 struct device *dev = &pdev->dev;
1307 struct ahci_host_priv *hpriv;
1308 struct ata_host *host;
1309 int n_ports, n_msis, i, rc;
1310 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1311
1312 VPRINTK("ENTER\n");
1313
1314 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1315
1316 ata_print_version_once(&pdev->dev, DRV_VERSION);
1317
1318 /* The AHCI driver can only drive the SATA ports, the PATA driver
1319 can drive them all so if both drivers are selected make sure
1320 AHCI stays out of the way */
1321 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1322 return -ENODEV;
1323
1324 /* Apple BIOS on MCP89 prevents us using AHCI */
1325 if (is_mcp89_apple(pdev))
1326 ahci_mcp89_apple_enable(pdev);
1327
1328 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1329 * At the moment, we can only use the AHCI mode. Let the users know
1330 * that for SAS drives they're out of luck.
1331 */
1332 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1333 dev_info(&pdev->dev,
1334 "PDC42819 can only drive SATA devices with this driver\n");
1335
1336 /* Both Connext and Enmotus devices use non-standard BARs */
1337 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1338 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1339 else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1340 ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1341
1342 /*
1343 * The JMicron chip 361/363 contains one SATA controller and one
1344 * PATA controller,for powering on these both controllers, we must
1345 * follow the sequence one by one, otherwise one of them can not be
1346 * powered on successfully, so here we disable the async suspend
1347 * method for these chips.
1348 */
1349 if (pdev->vendor == PCI_VENDOR_ID_JMICRON &&
1350 (pdev->device == PCI_DEVICE_ID_JMICRON_JMB363 ||
1351 pdev->device == PCI_DEVICE_ID_JMICRON_JMB361))
1352 device_disable_async_suspend(&pdev->dev);
1353
1354 /* acquire resources */
1355 rc = pcim_enable_device(pdev);
1356 if (rc)
1357 return rc;
1358
1359 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1360 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1361 u8 map;
1362
1363 /* ICH6s share the same PCI ID for both piix and ahci
1364 * modes. Enabling ahci mode while MAP indicates
1365 * combined mode is a bad idea. Yield to ata_piix.
1366 */
1367 pci_read_config_byte(pdev, ICH_MAP, &map);
1368 if (map & 0x3) {
1369 dev_info(&pdev->dev,
1370 "controller is in combined mode, can't enable AHCI mode\n");
1371 return -ENODEV;
1372 }
1373 }
1374
1375 /* AHCI controllers often implement SFF compatible interface.
1376 * Grab all PCI BARs just in case.
1377 */
1378 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1379 if (rc == -EBUSY)
1380 pcim_pin_device(pdev);
1381 if (rc)
1382 return rc;
1383
1384 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1385 if (!hpriv)
1386 return -ENOMEM;
1387 hpriv->flags |= (unsigned long)pi.private_data;
1388
1389 /* MCP65 revision A1 and A2 can't do MSI */
1390 if (board_id == board_ahci_mcp65 &&
1391 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1392 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1393
1394 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1395 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1396 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1397
1398 /* only some SB600s can do 64bit DMA */
1399 if (ahci_sb600_enable_64bit(pdev))
1400 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1401
1402 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1403
1404 /* must set flag prior to save config in order to take effect */
1405 if (ahci_broken_devslp(pdev))
1406 hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1407
1408 /* save initial config */
1409 ahci_pci_save_initial_config(pdev, hpriv);
1410
1411 /* prepare host */
1412 if (hpriv->cap & HOST_CAP_NCQ) {
1413 pi.flags |= ATA_FLAG_NCQ;
1414 /*
1415 * Auto-activate optimization is supposed to be
1416 * supported on all AHCI controllers indicating NCQ
1417 * capability, but it seems to be broken on some
1418 * chipsets including NVIDIAs.
1419 */
1420 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1421 pi.flags |= ATA_FLAG_FPDMA_AA;
1422
1423 /*
1424 * All AHCI controllers should be forward-compatible
1425 * with the new auxiliary field. This code should be
1426 * conditionalized if any buggy AHCI controllers are
1427 * encountered.
1428 */
1429 pi.flags |= ATA_FLAG_FPDMA_AUX;
1430 }
1431
1432 if (hpriv->cap & HOST_CAP_PMP)
1433 pi.flags |= ATA_FLAG_PMP;
1434
1435 ahci_set_em_messages(hpriv, &pi);
1436
1437 if (ahci_broken_system_poweroff(pdev)) {
1438 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1439 dev_info(&pdev->dev,
1440 "quirky BIOS, skipping spindown on poweroff\n");
1441 }
1442
1443 if (ahci_broken_suspend(pdev)) {
1444 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1445 dev_warn(&pdev->dev,
1446 "BIOS update required for suspend/resume\n");
1447 }
1448
1449 if (ahci_broken_online(pdev)) {
1450 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1451 dev_info(&pdev->dev,
1452 "online status unreliable, applying workaround\n");
1453 }
1454
1455 /* CAP.NP sometimes indicate the index of the last enabled
1456 * port, at other times, that of the last possible port, so
1457 * determining the maximum port number requires looking at
1458 * both CAP.NP and port_map.
1459 */
1460 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1461
1462 n_msis = ahci_init_interrupts(pdev, n_ports, hpriv);
1463 if (n_msis > 1)
1464 hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1465
1466 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1467 if (!host)
1468 return -ENOMEM;
1469 host->private_data = hpriv;
1470
1471 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1472 host->flags |= ATA_HOST_PARALLEL_SCAN;
1473 else
1474 dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1475
1476 if (pi.flags & ATA_FLAG_EM)
1477 ahci_reset_em(host);
1478
1479 for (i = 0; i < host->n_ports; i++) {
1480 struct ata_port *ap = host->ports[i];
1481
1482 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1483 ata_port_pbar_desc(ap, ahci_pci_bar,
1484 0x100 + ap->port_no * 0x80, "port");
1485
1486 /* set enclosure management message type */
1487 if (ap->flags & ATA_FLAG_EM)
1488 ap->em_message_type = hpriv->em_msg_type;
1489
1490
1491 /* disabled/not-implemented port */
1492 if (!(hpriv->port_map & (1 << i)))
1493 ap->ops = &ata_dummy_port_ops;
1494 }
1495
1496 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1497 ahci_p5wdh_workaround(host);
1498
1499 /* apply gtf filter quirk */
1500 ahci_gtf_filter_workaround(host);
1501
1502 /* initialize adapter */
1503 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1504 if (rc)
1505 return rc;
1506
1507 rc = ahci_pci_reset_controller(host);
1508 if (rc)
1509 return rc;
1510
1511 ahci_pci_init_controller(host);
1512 ahci_pci_print_info(host);
1513
1514 pci_set_master(pdev);
1515
1516 if (hpriv->flags & AHCI_HFLAG_MULTI_MSI)
1517 return ahci_host_activate(host, pdev->irq, n_msis);
1518
1519 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1520 &ahci_sht);
1521 }
1522
1523 module_pci_driver(ahci_pci_driver);
1524
1525 MODULE_AUTHOR("Jeff Garzik");
1526 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1527 MODULE_LICENSE("GPL");
1528 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1529 MODULE_VERSION(DRV_VERSION);
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