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workqueue: protect wq->saved_max_active with wq->mutex
[linux-2.6/btrfs-unstable.git] / drivers / ata / ahci.c
bloba99112cfd8b1e8524558ce659754d5c501e7c0fe
1 /*
2 * ahci.c - AHCI SATA support
3 *
4 * Maintained by: Jeff Garzik <jgarzik@pobox.com>
5 * Please ALWAYS copy linux-ide@vger.kernel.org
6 * on emails.
7 *
8 * Copyright 2004-2005 Red Hat, Inc.
9 *
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 *
26 * libata documentation is available via 'make {ps|pdf}docs',
27 * as Documentation/DocBook/libata.*
28 *
29 * AHCI hardware documentation:
30 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
31 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
32 *
33 */
34
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/pci.h>
38 #include <linux/init.h>
39 #include <linux/blkdev.h>
40 #include <linux/delay.h>
41 #include <linux/interrupt.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/device.h>
44 #include <linux/dmi.h>
45 #include <linux/gfp.h>
46 #include <scsi/scsi_host.h>
47 #include <scsi/scsi_cmnd.h>
48 #include <linux/libata.h>
49 #include "ahci.h"
50
51 #define DRV_NAME "ahci"
52 #define DRV_VERSION "3.0"
53
54 enum {
55 AHCI_PCI_BAR_STA2X11 = 0,
56 AHCI_PCI_BAR_ENMOTUS = 2,
57 AHCI_PCI_BAR_STANDARD = 5,
58 };
59
60 enum board_ids {
61 /* board IDs by feature in alphabetical order */
62 board_ahci,
63 board_ahci_ign_iferr,
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 int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
87 unsigned long deadline);
88 #ifdef CONFIG_PM
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);
91 #endif
92
93 static struct scsi_host_template ahci_sht = {
94 AHCI_SHT("ahci"),
95 };
96
97 static struct ata_port_operations ahci_vt8251_ops = {
98 .inherits = &ahci_ops,
99 .hardreset = ahci_vt8251_hardreset,
100 };
101
102 static struct ata_port_operations ahci_p5wdh_ops = {
103 .inherits = &ahci_ops,
104 .hardreset = ahci_p5wdh_hardreset,
105 };
106
107 static const struct ata_port_info ahci_port_info[] = {
108 /* by features */
109 [board_ahci] = {
110 .flags = AHCI_FLAG_COMMON,
111 .pio_mask = ATA_PIO4,
112 .udma_mask = ATA_UDMA6,
113 .port_ops = &ahci_ops,
114 },
115 [board_ahci_ign_iferr] = {
116 AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
117 .flags = AHCI_FLAG_COMMON,
118 .pio_mask = ATA_PIO4,
119 .udma_mask = ATA_UDMA6,
120 .port_ops = &ahci_ops,
121 },
122 [board_ahci_nosntf] = {
123 AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
124 .flags = AHCI_FLAG_COMMON,
125 .pio_mask = ATA_PIO4,
126 .udma_mask = ATA_UDMA6,
127 .port_ops = &ahci_ops,
128 },
129 [board_ahci_yes_fbs] = {
130 AHCI_HFLAGS (AHCI_HFLAG_YES_FBS),
131 .flags = AHCI_FLAG_COMMON,
132 .pio_mask = ATA_PIO4,
133 .udma_mask = ATA_UDMA6,
134 .port_ops = &ahci_ops,
135 },
136 /* by chipsets */
137 [board_ahci_mcp65] = {
138 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
139 AHCI_HFLAG_YES_NCQ),
140 .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
141 .pio_mask = ATA_PIO4,
142 .udma_mask = ATA_UDMA6,
143 .port_ops = &ahci_ops,
144 },
145 [board_ahci_mcp77] = {
146 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
147 .flags = AHCI_FLAG_COMMON,
148 .pio_mask = ATA_PIO4,
149 .udma_mask = ATA_UDMA6,
150 .port_ops = &ahci_ops,
151 },
152 [board_ahci_mcp89] = {
153 AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
154 .flags = AHCI_FLAG_COMMON,
155 .pio_mask = ATA_PIO4,
156 .udma_mask = ATA_UDMA6,
157 .port_ops = &ahci_ops,
158 },
159 [board_ahci_mv] = {
160 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
161 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
162 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
163 .pio_mask = ATA_PIO4,
164 .udma_mask = ATA_UDMA6,
165 .port_ops = &ahci_ops,
166 },
167 [board_ahci_sb600] = {
168 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
169 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
170 AHCI_HFLAG_32BIT_ONLY),
171 .flags = AHCI_FLAG_COMMON,
172 .pio_mask = ATA_PIO4,
173 .udma_mask = ATA_UDMA6,
174 .port_ops = &ahci_pmp_retry_srst_ops,
175 },
176 [board_ahci_sb700] = { /* for SB700 and SB800 */
177 AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
178 .flags = AHCI_FLAG_COMMON,
179 .pio_mask = ATA_PIO4,
180 .udma_mask = ATA_UDMA6,
181 .port_ops = &ahci_pmp_retry_srst_ops,
182 },
183 [board_ahci_vt8251] = {
184 AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
185 .flags = AHCI_FLAG_COMMON,
186 .pio_mask = ATA_PIO4,
187 .udma_mask = ATA_UDMA6,
188 .port_ops = &ahci_vt8251_ops,
189 },
190 };
191
192 static const struct pci_device_id ahci_pci_tbl[] = {
193 /* Intel */
194 { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
195 { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
196 { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
197 { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
198 { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
199 { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
200 { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
201 { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
202 { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
203 { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
204 { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
205 { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
206 { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
207 { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
208 { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
209 { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
210 { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
211 { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
212 { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
213 { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
214 { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
215 { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
216 { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
217 { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
218 { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
219 { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
220 { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
221 { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
222 { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
223 { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
224 { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
225 { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
226 { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
227 { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
228 { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
229 { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
230 { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
231 { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
232 { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
233 { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
234 { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
235 { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
236 { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
237 { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
238 { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
239 { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
240 { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
241 { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
242 { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
243 { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
244 { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
245 { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
246 { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
247 { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
248 { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
249 { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
250 { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
251 { PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
252 { PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
253 { PCI_VDEVICE(INTEL, 0x8c03), board_ahci }, /* Lynx Point AHCI */
254 { PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
255 { PCI_VDEVICE(INTEL, 0x8c05), board_ahci }, /* Lynx Point RAID */
256 { PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
257 { PCI_VDEVICE(INTEL, 0x8c07), board_ahci }, /* Lynx Point RAID */
258 { PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
259 { PCI_VDEVICE(INTEL, 0x8c0f), board_ahci }, /* Lynx Point RAID */
260 { PCI_VDEVICE(INTEL, 0x9c02), board_ahci }, /* Lynx Point-LP AHCI */
261 { PCI_VDEVICE(INTEL, 0x9c03), board_ahci }, /* Lynx Point-LP AHCI */
262 { PCI_VDEVICE(INTEL, 0x9c04), board_ahci }, /* Lynx Point-LP RAID */
263 { PCI_VDEVICE(INTEL, 0x9c05), board_ahci }, /* Lynx Point-LP RAID */
264 { PCI_VDEVICE(INTEL, 0x9c06), board_ahci }, /* Lynx Point-LP RAID */
265 { PCI_VDEVICE(INTEL, 0x9c07), board_ahci }, /* Lynx Point-LP RAID */
266 { PCI_VDEVICE(INTEL, 0x9c0e), board_ahci }, /* Lynx Point-LP RAID */
267 { PCI_VDEVICE(INTEL, 0x9c0f), board_ahci }, /* Lynx Point-LP RAID */
268 { PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
269 { PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
270 { PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
271 { PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
272 { PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
273 { PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
274 { PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
275 { PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
276 { PCI_VDEVICE(INTEL, 0x1f32), board_ahci }, /* Avoton AHCI */
277 { PCI_VDEVICE(INTEL, 0x1f33), board_ahci }, /* Avoton AHCI */
278 { PCI_VDEVICE(INTEL, 0x1f34), board_ahci }, /* Avoton RAID */
279 { PCI_VDEVICE(INTEL, 0x1f35), board_ahci }, /* Avoton RAID */
280 { PCI_VDEVICE(INTEL, 0x1f36), board_ahci }, /* Avoton RAID */
281 { PCI_VDEVICE(INTEL, 0x1f37), board_ahci }, /* Avoton RAID */
282 { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci }, /* Avoton RAID */
283 { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci }, /* Avoton RAID */
284 { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
285 { PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
286 { PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
287 { PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
288 { PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
289 { PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
290 { PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
291 { PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
292
293 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
294 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
295 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
296 /* JMicron 362B and 362C have an AHCI function with IDE class code */
297 { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
298 { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
299
300 /* ATI */
301 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
302 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
303 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
304 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
305 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
306 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
307 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
308
309 /* AMD */
310 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
311 /* AMD is using RAID class only for ahci controllers */
312 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
313 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
314
315 /* VIA */
316 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
317 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
318
319 /* NVIDIA */
320 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
321 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
322 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
323 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
324 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
325 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
326 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
327 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
328 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
329 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
330 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
331 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
332 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
333 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
334 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
335 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
336 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
337 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
338 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
339 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
340 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
341 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
342 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
343 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
344 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
345 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
346 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
347 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
348 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
349 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
350 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
351 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
352 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
353 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
354 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
355 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
356 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
357 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
358 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
359 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
360 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
361 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
362 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
363 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
364 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
365 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
366 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
367 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
368 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
369 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
370 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
371 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
372 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
373 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
374 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
375 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
376 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
377 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
378 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
379 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
380 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
381 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
382 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
383 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
384 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
385 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
386 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
387 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
388 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
389 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
390 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
391 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
392 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
393 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
394 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
395 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
396 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
397 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
398 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
399 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
400 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
401 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
402 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
403 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
404
405 /* SiS */
406 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
407 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
408 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
409
410 /* ST Microelectronics */
411 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
412
413 /* Marvell */
414 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
415 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
416 { PCI_DEVICE(0x1b4b, 0x9123),
417 .class = PCI_CLASS_STORAGE_SATA_AHCI,
418 .class_mask = 0xffffff,
419 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
420 { PCI_DEVICE(0x1b4b, 0x9125),
421 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
422 { PCI_DEVICE(0x1b4b, 0x917a),
423 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
424 { PCI_DEVICE(0x1b4b, 0x9192),
425 .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
426 { PCI_DEVICE(0x1b4b, 0x91a3),
427 .driver_data = board_ahci_yes_fbs },
428
429 /* Promise */
430 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
431
432 /* Asmedia */
433 { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
434 { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
435 { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
436 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
437
438 /* Enmotus */
439 { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
440
441 /* Generic, PCI class code for AHCI */
442 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
443 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
444
445 { } /* terminate list */
446 };
447
448
449 static struct pci_driver ahci_pci_driver = {
450 .name = DRV_NAME,
451 .id_table = ahci_pci_tbl,
452 .probe = ahci_init_one,
453 .remove = ata_pci_remove_one,
454 #ifdef CONFIG_PM
455 .suspend = ahci_pci_device_suspend,
456 .resume = ahci_pci_device_resume,
457 #endif
458 };
459
460 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
461 static int marvell_enable;
462 #else
463 static int marvell_enable = 1;
464 #endif
465 module_param(marvell_enable, int, 0644);
466 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
467
468
469 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
470 struct ahci_host_priv *hpriv)
471 {
472 unsigned int force_port_map = 0;
473 unsigned int mask_port_map = 0;
474
475 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
476 dev_info(&pdev->dev, "JMB361 has only one port\n");
477 force_port_map = 1;
478 }
479
480 /*
481 * Temporary Marvell 6145 hack: PATA port presence
482 * is asserted through the standard AHCI port
483 * presence register, as bit 4 (counting from 0)
484 */
485 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
486 if (pdev->device == 0x6121)
487 mask_port_map = 0x3;
488 else
489 mask_port_map = 0xf;
490 dev_info(&pdev->dev,
491 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
492 }
493
494 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
495 mask_port_map);
496 }
497
498 static int ahci_pci_reset_controller(struct ata_host *host)
499 {
500 struct pci_dev *pdev = to_pci_dev(host->dev);
501
502 ahci_reset_controller(host);
503
504 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
505 struct ahci_host_priv *hpriv = host->private_data;
506 u16 tmp16;
507
508 /* configure PCS */
509 pci_read_config_word(pdev, 0x92, &tmp16);
510 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
511 tmp16 |= hpriv->port_map;
512 pci_write_config_word(pdev, 0x92, tmp16);
513 }
514 }
515
516 return 0;
517 }
518
519 static void ahci_pci_init_controller(struct ata_host *host)
520 {
521 struct ahci_host_priv *hpriv = host->private_data;
522 struct pci_dev *pdev = to_pci_dev(host->dev);
523 void __iomem *port_mmio;
524 u32 tmp;
525 int mv;
526
527 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
528 if (pdev->device == 0x6121)
529 mv = 2;
530 else
531 mv = 4;
532 port_mmio = __ahci_port_base(host, mv);
533
534 writel(0, port_mmio + PORT_IRQ_MASK);
535
536 /* clear port IRQ */
537 tmp = readl(port_mmio + PORT_IRQ_STAT);
538 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
539 if (tmp)
540 writel(tmp, port_mmio + PORT_IRQ_STAT);
541 }
542
543 ahci_init_controller(host);
544 }
545
546 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
547 unsigned long deadline)
548 {
549 struct ata_port *ap = link->ap;
550 bool online;
551 int rc;
552
553 DPRINTK("ENTER\n");
554
555 ahci_stop_engine(ap);
556
557 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
558 deadline, &online, NULL);
559
560 ahci_start_engine(ap);
561
562 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
563
564 /* vt8251 doesn't clear BSY on signature FIS reception,
565 * request follow-up softreset.
566 */
567 return online ? -EAGAIN : rc;
568 }
569
570 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
571 unsigned long deadline)
572 {
573 struct ata_port *ap = link->ap;
574 struct ahci_port_priv *pp = ap->private_data;
575 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
576 struct ata_taskfile tf;
577 bool online;
578 int rc;
579
580 ahci_stop_engine(ap);
581
582 /* clear D2H reception area to properly wait for D2H FIS */
583 ata_tf_init(link->device, &tf);
584 tf.command = 0x80;
585 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
586
587 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
588 deadline, &online, NULL);
589
590 ahci_start_engine(ap);
591
592 /* The pseudo configuration device on SIMG4726 attached to
593 * ASUS P5W-DH Deluxe doesn't send signature FIS after
594 * hardreset if no device is attached to the first downstream
595 * port && the pseudo device locks up on SRST w/ PMP==0. To
596 * work around this, wait for !BSY only briefly. If BSY isn't
597 * cleared, perform CLO and proceed to IDENTIFY (achieved by
598 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
599 *
600 * Wait for two seconds. Devices attached to downstream port
601 * which can't process the following IDENTIFY after this will
602 * have to be reset again. For most cases, this should
603 * suffice while making probing snappish enough.
604 */
605 if (online) {
606 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
607 ahci_check_ready);
608 if (rc)
609 ahci_kick_engine(ap);
610 }
611 return rc;
612 }
613
614 #ifdef CONFIG_PM
615 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
616 {
617 struct ata_host *host = dev_get_drvdata(&pdev->dev);
618 struct ahci_host_priv *hpriv = host->private_data;
619 void __iomem *mmio = hpriv->mmio;
620 u32 ctl;
621
622 if (mesg.event & PM_EVENT_SUSPEND &&
623 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
624 dev_err(&pdev->dev,
625 "BIOS update required for suspend/resume\n");
626 return -EIO;
627 }
628
629 if (mesg.event & PM_EVENT_SLEEP) {
630 /* AHCI spec rev1.1 section 8.3.3:
631 * Software must disable interrupts prior to requesting a
632 * transition of the HBA to D3 state.
633 */
634 ctl = readl(mmio + HOST_CTL);
635 ctl &= ~HOST_IRQ_EN;
636 writel(ctl, mmio + HOST_CTL);
637 readl(mmio + HOST_CTL); /* flush */
638 }
639
640 return ata_pci_device_suspend(pdev, mesg);
641 }
642
643 static int ahci_pci_device_resume(struct pci_dev *pdev)
644 {
645 struct ata_host *host = dev_get_drvdata(&pdev->dev);
646 int rc;
647
648 rc = ata_pci_device_do_resume(pdev);
649 if (rc)
650 return rc;
651
652 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
653 rc = ahci_pci_reset_controller(host);
654 if (rc)
655 return rc;
656
657 ahci_pci_init_controller(host);
658 }
659
660 ata_host_resume(host);
661
662 return 0;
663 }
664 #endif
665
666 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
667 {
668 int rc;
669
670 /*
671 * If the device fixup already set the dma_mask to some non-standard
672 * value, don't extend it here. This happens on STA2X11, for example.
673 */
674 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
675 return 0;
676
677 if (using_dac &&
678 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
679 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
680 if (rc) {
681 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
682 if (rc) {
683 dev_err(&pdev->dev,
684 "64-bit DMA enable failed\n");
685 return rc;
686 }
687 }
688 } else {
689 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
690 if (rc) {
691 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
692 return rc;
693 }
694 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
695 if (rc) {
696 dev_err(&pdev->dev,
697 "32-bit consistent DMA enable failed\n");
698 return rc;
699 }
700 }
701 return 0;
702 }
703
704 static void ahci_pci_print_info(struct ata_host *host)
705 {
706 struct pci_dev *pdev = to_pci_dev(host->dev);
707 u16 cc;
708 const char *scc_s;
709
710 pci_read_config_word(pdev, 0x0a, &cc);
711 if (cc == PCI_CLASS_STORAGE_IDE)
712 scc_s = "IDE";
713 else if (cc == PCI_CLASS_STORAGE_SATA)
714 scc_s = "SATA";
715 else if (cc == PCI_CLASS_STORAGE_RAID)
716 scc_s = "RAID";
717 else
718 scc_s = "unknown";
719
720 ahci_print_info(host, scc_s);
721 }
722
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).
729 *
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.
735 *
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.
740 */
741 static void ahci_p5wdh_workaround(struct ata_host *host)
742 {
743 static struct dmi_system_id sysids[] = {
744 {
745 .ident = "P5W DH Deluxe",
746 .matches = {
747 DMI_MATCH(DMI_SYS_VENDOR,
748 "ASUSTEK COMPUTER INC"),
749 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
750 },
751 },
752 { }
753 };
754 struct pci_dev *pdev = to_pci_dev(host->dev);
755
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];
759
760 dev_info(&pdev->dev,
761 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
762
763 ap->ops = &ahci_p5wdh_ops;
764 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
765 }
766 }
767
768 /* only some SB600 ahci controllers can do 64bit DMA */
769 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
770 {
771 static const struct dmi_system_id sysids[] = {
772 /*
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.
776 *
777 * Please read bko#9412 for more info.
778 */
779 {
780 .ident = "ASUS M2A-VM",
781 .matches = {
782 DMI_MATCH(DMI_BOARD_VENDOR,
783 "ASUSTeK Computer INC."),
784 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
785 },
786 .driver_data = "20071026", /* yyyymmdd */
787 },
788 /*
789 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
790 * support 64bit DMA.
791 *
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".
798 *
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".
803 */
804 {
805 .ident = "MSI K9A2 Platinum",
806 .matches = {
807 DMI_MATCH(DMI_BOARD_VENDOR,
808 "MICRO-STAR INTER"),
809 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
810 },
811 },
812 /*
813 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
814 * 64bit DMA.
815 *
816 * This board also had the typo mentioned above in the
817 * Manufacturer DMI field (fixed in BIOS version 1.5), so
818 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
819 */
820 {
821 .ident = "MSI K9AGM2",
822 .matches = {
823 DMI_MATCH(DMI_BOARD_VENDOR,
824 "MICRO-STAR INTER"),
825 DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
826 },
827 },
828 /*
829 * All BIOS versions for the Asus M3A support 64bit DMA.
830 * (all release versions from 0301 to 1206 were tested)
831 */
832 {
833 .ident = "ASUS M3A",
834 .matches = {
835 DMI_MATCH(DMI_BOARD_VENDOR,
836 "ASUSTeK Computer INC."),
837 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
838 },
839 },
840 { }
841 };
842 const struct dmi_system_id *match;
843 int year, month, date;
844 char buf[9];
845
846 match = dmi_first_match(sysids);
847 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
848 !match)
849 return false;
850
851 if (!match->driver_data)
852 goto enable_64bit;
853
854 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
855 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
856
857 if (strcmp(buf, match->driver_data) >= 0)
858 goto enable_64bit;
859 else {
860 dev_warn(&pdev->dev,
861 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
862 match->ident);
863 return false;
864 }
865
866 enable_64bit:
867 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
868 return true;
869 }
870
871 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
872 {
873 static const struct dmi_system_id broken_systems[] = {
874 {
875 .ident = "HP Compaq nx6310",
876 .matches = {
877 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
878 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
879 },
880 /* PCI slot number of the controller */
881 .driver_data = (void *)0x1FUL,
882 },
883 {
884 .ident = "HP Compaq 6720s",
885 .matches = {
886 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
887 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
888 },
889 /* PCI slot number of the controller */
890 .driver_data = (void *)0x1FUL,
891 },
892
893 { } /* terminate list */
894 };
895 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
896
897 if (dmi) {
898 unsigned long slot = (unsigned long)dmi->driver_data;
899 /* apply the quirk only to on-board controllers */
900 return slot == PCI_SLOT(pdev->devfn);
901 }
902
903 return false;
904 }
905
906 static bool ahci_broken_suspend(struct pci_dev *pdev)
907 {
908 static const struct dmi_system_id sysids[] = {
909 /*
910 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
911 * to the harddisk doesn't become online after
912 * resuming from STR. Warn and fail suspend.
913 *
914 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
915 *
916 * Use dates instead of versions to match as HP is
917 * apparently recycling both product and version
918 * strings.
919 *
920 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
921 */
922 {
923 .ident = "dv4",
924 .matches = {
925 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
926 DMI_MATCH(DMI_PRODUCT_NAME,
927 "HP Pavilion dv4 Notebook PC"),
928 },
929 .driver_data = "20090105", /* F.30 */
930 },
931 {
932 .ident = "dv5",
933 .matches = {
934 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
935 DMI_MATCH(DMI_PRODUCT_NAME,
936 "HP Pavilion dv5 Notebook PC"),
937 },
938 .driver_data = "20090506", /* F.16 */
939 },
940 {
941 .ident = "dv6",
942 .matches = {
943 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
944 DMI_MATCH(DMI_PRODUCT_NAME,
945 "HP Pavilion dv6 Notebook PC"),
946 },
947 .driver_data = "20090423", /* F.21 */
948 },
949 {
950 .ident = "HDX18",
951 .matches = {
952 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
953 DMI_MATCH(DMI_PRODUCT_NAME,
954 "HP HDX18 Notebook PC"),
955 },
956 .driver_data = "20090430", /* F.23 */
957 },
958 /*
959 * Acer eMachines G725 has the same problem. BIOS
960 * V1.03 is known to be broken. V3.04 is known to
961 * work. Between, there are V1.06, V2.06 and V3.03
962 * that we don't have much idea about. For now,
963 * blacklist anything older than V3.04.
964 *
965 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
966 */
967 {
968 .ident = "G725",
969 .matches = {
970 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
971 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
972 },
973 .driver_data = "20091216", /* V3.04 */
974 },
975 { } /* terminate list */
976 };
977 const struct dmi_system_id *dmi = dmi_first_match(sysids);
978 int year, month, date;
979 char buf[9];
980
981 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
982 return false;
983
984 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
985 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
986
987 return strcmp(buf, dmi->driver_data) < 0;
988 }
989
990 static bool ahci_broken_online(struct pci_dev *pdev)
991 {
992 #define ENCODE_BUSDEVFN(bus, slot, func) \
993 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
994 static const struct dmi_system_id sysids[] = {
995 /*
996 * There are several gigabyte boards which use
997 * SIMG5723s configured as hardware RAID. Certain
998 * 5723 firmware revisions shipped there keep the link
999 * online but fail to answer properly to SRST or
1000 * IDENTIFY when no device is attached downstream
1001 * causing libata to retry quite a few times leading
1002 * to excessive detection delay.
1003 *
1004 * As these firmwares respond to the second reset try
1005 * with invalid device signature, considering unknown
1006 * sig as offline works around the problem acceptably.
1007 */
1008 {
1009 .ident = "EP45-DQ6",
1010 .matches = {
1011 DMI_MATCH(DMI_BOARD_VENDOR,
1012 "Gigabyte Technology Co., Ltd."),
1013 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1014 },
1015 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1016 },
1017 {
1018 .ident = "EP45-DS5",
1019 .matches = {
1020 DMI_MATCH(DMI_BOARD_VENDOR,
1021 "Gigabyte Technology Co., Ltd."),
1022 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1023 },
1024 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1025 },
1026 { } /* terminate list */
1027 };
1028 #undef ENCODE_BUSDEVFN
1029 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1030 unsigned int val;
1031
1032 if (!dmi)
1033 return false;
1034
1035 val = (unsigned long)dmi->driver_data;
1036
1037 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1038 }
1039
1040 #ifdef CONFIG_ATA_ACPI
1041 static void ahci_gtf_filter_workaround(struct ata_host *host)
1042 {
1043 static const struct dmi_system_id sysids[] = {
1044 /*
1045 * Aspire 3810T issues a bunch of SATA enable commands
1046 * via _GTF including an invalid one and one which is
1047 * rejected by the device. Among the successful ones
1048 * is FPDMA non-zero offset enable which when enabled
1049 * only on the drive side leads to NCQ command
1050 * failures. Filter it out.
1051 */
1052 {
1053 .ident = "Aspire 3810T",
1054 .matches = {
1055 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1056 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1057 },
1058 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1059 },
1060 { }
1061 };
1062 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1063 unsigned int filter;
1064 int i;
1065
1066 if (!dmi)
1067 return;
1068
1069 filter = (unsigned long)dmi->driver_data;
1070 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1071 filter, dmi->ident);
1072
1073 for (i = 0; i < host->n_ports; i++) {
1074 struct ata_port *ap = host->ports[i];
1075 struct ata_link *link;
1076 struct ata_device *dev;
1077
1078 ata_for_each_link(link, ap, EDGE)
1079 ata_for_each_dev(dev, link, ALL)
1080 dev->gtf_filter |= filter;
1081 }
1082 }
1083 #else
1084 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1085 {}
1086 #endif
1087
1088 int ahci_init_interrupts(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1089 {
1090 int rc;
1091 unsigned int maxvec;
1092
1093 if (!(hpriv->flags & AHCI_HFLAG_NO_MSI)) {
1094 rc = pci_enable_msi_block_auto(pdev, &maxvec);
1095 if (rc > 0) {
1096 if ((rc == maxvec) || (rc == 1))
1097 return rc;
1098 /*
1099 * Assume that advantage of multipe MSIs is negated,
1100 * so fallback to single MSI mode to save resources
1101 */
1102 pci_disable_msi(pdev);
1103 if (!pci_enable_msi(pdev))
1104 return 1;
1105 }
1106 }
1107
1108 pci_intx(pdev, 1);
1109 return 0;
1110 }
1111
1112 /**
1113 * ahci_host_activate - start AHCI host, request IRQs and register it
1114 * @host: target ATA host
1115 * @irq: base IRQ number to request
1116 * @n_msis: number of MSIs allocated for this host
1117 * @irq_handler: irq_handler used when requesting IRQs
1118 * @irq_flags: irq_flags used when requesting IRQs
1119 *
1120 * Similar to ata_host_activate, but requests IRQs according to AHCI-1.1
1121 * when multiple MSIs were allocated. That is one MSI per port, starting
1122 * from @irq.
1123 *
1124 * LOCKING:
1125 * Inherited from calling layer (may sleep).
1126 *
1127 * RETURNS:
1128 * 0 on success, -errno otherwise.
1129 */
1130 int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis)
1131 {
1132 int i, rc;
1133
1134 /* Sharing Last Message among several ports is not supported */
1135 if (n_msis < host->n_ports)
1136 return -EINVAL;
1137
1138 rc = ata_host_start(host);
1139 if (rc)
1140 return rc;
1141
1142 for (i = 0; i < host->n_ports; i++) {
1143 rc = devm_request_threaded_irq(host->dev,
1144 irq + i, ahci_hw_interrupt, ahci_thread_fn, IRQF_SHARED,
1145 dev_driver_string(host->dev), host->ports[i]);
1146 if (rc)
1147 goto out_free_irqs;
1148 }
1149
1150 for (i = 0; i < host->n_ports; i++)
1151 ata_port_desc(host->ports[i], "irq %d", irq + i);
1152
1153 rc = ata_host_register(host, &ahci_sht);
1154 if (rc)
1155 goto out_free_all_irqs;
1156
1157 return 0;
1158
1159 out_free_all_irqs:
1160 i = host->n_ports;
1161 out_free_irqs:
1162 for (i--; i >= 0; i--)
1163 devm_free_irq(host->dev, irq + i, host->ports[i]);
1164
1165 return rc;
1166 }
1167
1168 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1169 {
1170 unsigned int board_id = ent->driver_data;
1171 struct ata_port_info pi = ahci_port_info[board_id];
1172 const struct ata_port_info *ppi[] = { &pi, NULL };
1173 struct device *dev = &pdev->dev;
1174 struct ahci_host_priv *hpriv;
1175 struct ata_host *host;
1176 int n_ports, n_msis, i, rc;
1177 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1178
1179 VPRINTK("ENTER\n");
1180
1181 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1182
1183 ata_print_version_once(&pdev->dev, DRV_VERSION);
1184
1185 /* The AHCI driver can only drive the SATA ports, the PATA driver
1186 can drive them all so if both drivers are selected make sure
1187 AHCI stays out of the way */
1188 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1189 return -ENODEV;
1190
1191 /*
1192 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1193 * ahci, use ata_generic instead.
1194 */
1195 if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1196 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1197 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1198 pdev->subsystem_device == 0xcb89)
1199 return -ENODEV;
1200
1201 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1202 * At the moment, we can only use the AHCI mode. Let the users know
1203 * that for SAS drives they're out of luck.
1204 */
1205 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1206 dev_info(&pdev->dev,
1207 "PDC42819 can only drive SATA devices with this driver\n");
1208
1209 /* Both Connext and Enmotus devices use non-standard BARs */
1210 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1211 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1212 else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1213 ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1214
1215 /* acquire resources */
1216 rc = pcim_enable_device(pdev);
1217 if (rc)
1218 return rc;
1219
1220 /* AHCI controllers often implement SFF compatible interface.
1221 * Grab all PCI BARs just in case.
1222 */
1223 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1224 if (rc == -EBUSY)
1225 pcim_pin_device(pdev);
1226 if (rc)
1227 return rc;
1228
1229 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1230 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1231 u8 map;
1232
1233 /* ICH6s share the same PCI ID for both piix and ahci
1234 * modes. Enabling ahci mode while MAP indicates
1235 * combined mode is a bad idea. Yield to ata_piix.
1236 */
1237 pci_read_config_byte(pdev, ICH_MAP, &map);
1238 if (map & 0x3) {
1239 dev_info(&pdev->dev,
1240 "controller is in combined mode, can't enable AHCI mode\n");
1241 return -ENODEV;
1242 }
1243 }
1244
1245 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1246 if (!hpriv)
1247 return -ENOMEM;
1248 hpriv->flags |= (unsigned long)pi.private_data;
1249
1250 /* MCP65 revision A1 and A2 can't do MSI */
1251 if (board_id == board_ahci_mcp65 &&
1252 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1253 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1254
1255 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1256 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1257 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1258
1259 /* only some SB600s can do 64bit DMA */
1260 if (ahci_sb600_enable_64bit(pdev))
1261 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1262
1263 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1264
1265 n_msis = ahci_init_interrupts(pdev, hpriv);
1266 if (n_msis > 1)
1267 hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1268
1269 /* save initial config */
1270 ahci_pci_save_initial_config(pdev, hpriv);
1271
1272 /* prepare host */
1273 if (hpriv->cap & HOST_CAP_NCQ) {
1274 pi.flags |= ATA_FLAG_NCQ;
1275 /*
1276 * Auto-activate optimization is supposed to be
1277 * supported on all AHCI controllers indicating NCQ
1278 * capability, but it seems to be broken on some
1279 * chipsets including NVIDIAs.
1280 */
1281 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1282 pi.flags |= ATA_FLAG_FPDMA_AA;
1283 }
1284
1285 if (hpriv->cap & HOST_CAP_PMP)
1286 pi.flags |= ATA_FLAG_PMP;
1287
1288 ahci_set_em_messages(hpriv, &pi);
1289
1290 if (ahci_broken_system_poweroff(pdev)) {
1291 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1292 dev_info(&pdev->dev,
1293 "quirky BIOS, skipping spindown on poweroff\n");
1294 }
1295
1296 if (ahci_broken_suspend(pdev)) {
1297 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1298 dev_warn(&pdev->dev,
1299 "BIOS update required for suspend/resume\n");
1300 }
1301
1302 if (ahci_broken_online(pdev)) {
1303 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1304 dev_info(&pdev->dev,
1305 "online status unreliable, applying workaround\n");
1306 }
1307
1308 /* CAP.NP sometimes indicate the index of the last enabled
1309 * port, at other times, that of the last possible port, so
1310 * determining the maximum port number requires looking at
1311 * both CAP.NP and port_map.
1312 */
1313 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1314
1315 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1316 if (!host)
1317 return -ENOMEM;
1318 host->private_data = hpriv;
1319
1320 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1321 host->flags |= ATA_HOST_PARALLEL_SCAN;
1322 else
1323 printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
1324
1325 if (pi.flags & ATA_FLAG_EM)
1326 ahci_reset_em(host);
1327
1328 for (i = 0; i < host->n_ports; i++) {
1329 struct ata_port *ap = host->ports[i];
1330
1331 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1332 ata_port_pbar_desc(ap, ahci_pci_bar,
1333 0x100 + ap->port_no * 0x80, "port");
1334
1335 /* set enclosure management message type */
1336 if (ap->flags & ATA_FLAG_EM)
1337 ap->em_message_type = hpriv->em_msg_type;
1338
1339
1340 /* disabled/not-implemented port */
1341 if (!(hpriv->port_map & (1 << i)))
1342 ap->ops = &ata_dummy_port_ops;
1343 }
1344
1345 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1346 ahci_p5wdh_workaround(host);
1347
1348 /* apply gtf filter quirk */
1349 ahci_gtf_filter_workaround(host);
1350
1351 /* initialize adapter */
1352 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1353 if (rc)
1354 return rc;
1355
1356 rc = ahci_pci_reset_controller(host);
1357 if (rc)
1358 return rc;
1359
1360 ahci_pci_init_controller(host);
1361 ahci_pci_print_info(host);
1362
1363 pci_set_master(pdev);
1364
1365 if (hpriv->flags & AHCI_HFLAG_MULTI_MSI)
1366 return ahci_host_activate(host, pdev->irq, n_msis);
1367
1368 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1369 &ahci_sht);
1370 }
1371
1372 module_pci_driver(ahci_pci_driver);
1373
1374 MODULE_AUTHOR("Jeff Garzik");
1375 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1376 MODULE_LICENSE("GPL");
1377 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1378 MODULE_VERSION(DRV_VERSION);
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