?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
drm: Refactor framebuffer creation to allow internal use (v2)
[linux-2.6/btrfs-unstable.git] / drivers / ata / ahci.c
blob60707814a84b19e2581d6309c2a17d4823d1e015
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
309 /* JMicron 360/1/3/5/6, match class to avoid IDE function */
310 { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
311 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
312 /* JMicron 362B and 362C have an AHCI function with IDE class code */
313 { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
314 { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
315
316 /* ATI */
317 { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
318 { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
319 { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
320 { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
321 { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
322 { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
323 { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
324
325 /* AMD */
326 { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
327 { PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
328 /* AMD is using RAID class only for ahci controllers */
329 { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
330 PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
331
332 /* VIA */
333 { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
334 { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
335
336 /* NVIDIA */
337 { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
338 { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
339 { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
340 { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
341 { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
342 { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
343 { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
344 { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
345 { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
346 { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
347 { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
348 { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
349 { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
350 { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
351 { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
352 { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
353 { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
354 { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
355 { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
356 { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
357 { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
358 { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
359 { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
360 { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
361 { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
362 { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
363 { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
364 { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
365 { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
366 { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
367 { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
368 { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
369 { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
370 { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
371 { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
372 { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
373 { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
374 { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
375 { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
376 { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
377 { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
378 { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
379 { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
380 { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
381 { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
382 { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
383 { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
384 { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
385 { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
386 { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
387 { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
388 { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
389 { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
390 { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
391 { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
392 { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
393 { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
394 { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
395 { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
396 { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
397 { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
398 { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
399 { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
400 { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
401 { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
402 { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
403 { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
404 { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
405 { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
406 { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
407 { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
408 { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
409 { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
410 { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
411 { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
412 { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
413 { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
414 { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
415 { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
416 { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
417 { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
418 { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
419 { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
420 { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
421
422 /* SiS */
423 { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
424 { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
425 { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
426
427 /* ST Microelectronics */
428 { PCI_VDEVICE(STMICRO, 0xCC06), board_ahci }, /* ST ConneXt */
429
430 /* Marvell */
431 { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
432 { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
433 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
434 .class = PCI_CLASS_STORAGE_SATA_AHCI,
435 .class_mask = 0xffffff,
436 .driver_data = board_ahci_yes_fbs }, /* 88se9128 */
437 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
438 .driver_data = board_ahci_yes_fbs }, /* 88se9125 */
439 { PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
440 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
441 .driver_data = board_ahci_yes_fbs }, /* 88se9170 */
442 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
443 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
444 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
445 .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
446 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
447 .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
448 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
449 .driver_data = board_ahci_yes_fbs },
450 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
451 .driver_data = board_ahci_yes_fbs },
452
453 /* Promise */
454 { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
455
456 /* Asmedia */
457 { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
458 { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
459 { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
460 { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
461
462 /*
463 * Samsung SSDs found on some macbooks. NCQ times out.
464 * https://bugzilla.kernel.org/show_bug.cgi?id=60731
465 */
466 { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_noncq },
467
468 /* Enmotus */
469 { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
470
471 /* Generic, PCI class code for AHCI */
472 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
473 PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
474
475 { } /* terminate list */
476 };
477
478
479 static struct pci_driver ahci_pci_driver = {
480 .name = DRV_NAME,
481 .id_table = ahci_pci_tbl,
482 .probe = ahci_init_one,
483 .remove = ata_pci_remove_one,
484 #ifdef CONFIG_PM
485 .suspend = ahci_pci_device_suspend,
486 .resume = ahci_pci_device_resume,
487 #endif
488 };
489
490 #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
491 static int marvell_enable;
492 #else
493 static int marvell_enable = 1;
494 #endif
495 module_param(marvell_enable, int, 0644);
496 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
497
498
499 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
500 struct ahci_host_priv *hpriv)
501 {
502 unsigned int force_port_map = 0;
503 unsigned int mask_port_map = 0;
504
505 if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
506 dev_info(&pdev->dev, "JMB361 has only one port\n");
507 force_port_map = 1;
508 }
509
510 /*
511 * Temporary Marvell 6145 hack: PATA port presence
512 * is asserted through the standard AHCI port
513 * presence register, as bit 4 (counting from 0)
514 */
515 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
516 if (pdev->device == 0x6121)
517 mask_port_map = 0x3;
518 else
519 mask_port_map = 0xf;
520 dev_info(&pdev->dev,
521 "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
522 }
523
524 ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
525 mask_port_map);
526 }
527
528 static int ahci_pci_reset_controller(struct ata_host *host)
529 {
530 struct pci_dev *pdev = to_pci_dev(host->dev);
531
532 ahci_reset_controller(host);
533
534 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
535 struct ahci_host_priv *hpriv = host->private_data;
536 u16 tmp16;
537
538 /* configure PCS */
539 pci_read_config_word(pdev, 0x92, &tmp16);
540 if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
541 tmp16 |= hpriv->port_map;
542 pci_write_config_word(pdev, 0x92, tmp16);
543 }
544 }
545
546 return 0;
547 }
548
549 static void ahci_pci_init_controller(struct ata_host *host)
550 {
551 struct ahci_host_priv *hpriv = host->private_data;
552 struct pci_dev *pdev = to_pci_dev(host->dev);
553 void __iomem *port_mmio;
554 u32 tmp;
555 int mv;
556
557 if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
558 if (pdev->device == 0x6121)
559 mv = 2;
560 else
561 mv = 4;
562 port_mmio = __ahci_port_base(host, mv);
563
564 writel(0, port_mmio + PORT_IRQ_MASK);
565
566 /* clear port IRQ */
567 tmp = readl(port_mmio + PORT_IRQ_STAT);
568 VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
569 if (tmp)
570 writel(tmp, port_mmio + PORT_IRQ_STAT);
571 }
572
573 ahci_init_controller(host);
574 }
575
576 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
577 unsigned long deadline)
578 {
579 struct ata_port *ap = link->ap;
580 struct ahci_host_priv *hpriv = ap->host->private_data;
581 bool online;
582 int rc;
583
584 DPRINTK("ENTER\n");
585
586 ahci_stop_engine(ap);
587
588 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
589 deadline, &online, NULL);
590
591 hpriv->start_engine(ap);
592
593 DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
594
595 /* vt8251 doesn't clear BSY on signature FIS reception,
596 * request follow-up softreset.
597 */
598 return online ? -EAGAIN : rc;
599 }
600
601 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
602 unsigned long deadline)
603 {
604 struct ata_port *ap = link->ap;
605 struct ahci_port_priv *pp = ap->private_data;
606 struct ahci_host_priv *hpriv = ap->host->private_data;
607 u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
608 struct ata_taskfile tf;
609 bool online;
610 int rc;
611
612 ahci_stop_engine(ap);
613
614 /* clear D2H reception area to properly wait for D2H FIS */
615 ata_tf_init(link->device, &tf);
616 tf.command = ATA_BUSY;
617 ata_tf_to_fis(&tf, 0, 0, d2h_fis);
618
619 rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
620 deadline, &online, NULL);
621
622 hpriv->start_engine(ap);
623
624 /* The pseudo configuration device on SIMG4726 attached to
625 * ASUS P5W-DH Deluxe doesn't send signature FIS after
626 * hardreset if no device is attached to the first downstream
627 * port && the pseudo device locks up on SRST w/ PMP==0. To
628 * work around this, wait for !BSY only briefly. If BSY isn't
629 * cleared, perform CLO and proceed to IDENTIFY (achieved by
630 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
631 *
632 * Wait for two seconds. Devices attached to downstream port
633 * which can't process the following IDENTIFY after this will
634 * have to be reset again. For most cases, this should
635 * suffice while making probing snappish enough.
636 */
637 if (online) {
638 rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
639 ahci_check_ready);
640 if (rc)
641 ahci_kick_engine(ap);
642 }
643 return rc;
644 }
645
646 #ifdef CONFIG_PM
647 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
648 {
649 struct ata_host *host = pci_get_drvdata(pdev);
650 struct ahci_host_priv *hpriv = host->private_data;
651 void __iomem *mmio = hpriv->mmio;
652 u32 ctl;
653
654 if (mesg.event & PM_EVENT_SUSPEND &&
655 hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
656 dev_err(&pdev->dev,
657 "BIOS update required for suspend/resume\n");
658 return -EIO;
659 }
660
661 if (mesg.event & PM_EVENT_SLEEP) {
662 /* AHCI spec rev1.1 section 8.3.3:
663 * Software must disable interrupts prior to requesting a
664 * transition of the HBA to D3 state.
665 */
666 ctl = readl(mmio + HOST_CTL);
667 ctl &= ~HOST_IRQ_EN;
668 writel(ctl, mmio + HOST_CTL);
669 readl(mmio + HOST_CTL); /* flush */
670 }
671
672 return ata_pci_device_suspend(pdev, mesg);
673 }
674
675 static int ahci_pci_device_resume(struct pci_dev *pdev)
676 {
677 struct ata_host *host = pci_get_drvdata(pdev);
678 int rc;
679
680 rc = ata_pci_device_do_resume(pdev);
681 if (rc)
682 return rc;
683
684 /* Apple BIOS helpfully mangles the registers on resume */
685 if (is_mcp89_apple(pdev))
686 ahci_mcp89_apple_enable(pdev);
687
688 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
689 rc = ahci_pci_reset_controller(host);
690 if (rc)
691 return rc;
692
693 ahci_pci_init_controller(host);
694 }
695
696 ata_host_resume(host);
697
698 return 0;
699 }
700 #endif
701
702 static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
703 {
704 int rc;
705
706 /*
707 * If the device fixup already set the dma_mask to some non-standard
708 * value, don't extend it here. This happens on STA2X11, for example.
709 */
710 if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
711 return 0;
712
713 if (using_dac &&
714 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
715 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
716 if (rc) {
717 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
718 if (rc) {
719 dev_err(&pdev->dev,
720 "64-bit DMA enable failed\n");
721 return rc;
722 }
723 }
724 } else {
725 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
726 if (rc) {
727 dev_err(&pdev->dev, "32-bit DMA enable failed\n");
728 return rc;
729 }
730 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
731 if (rc) {
732 dev_err(&pdev->dev,
733 "32-bit consistent DMA enable failed\n");
734 return rc;
735 }
736 }
737 return 0;
738 }
739
740 static void ahci_pci_print_info(struct ata_host *host)
741 {
742 struct pci_dev *pdev = to_pci_dev(host->dev);
743 u16 cc;
744 const char *scc_s;
745
746 pci_read_config_word(pdev, 0x0a, &cc);
747 if (cc == PCI_CLASS_STORAGE_IDE)
748 scc_s = "IDE";
749 else if (cc == PCI_CLASS_STORAGE_SATA)
750 scc_s = "SATA";
751 else if (cc == PCI_CLASS_STORAGE_RAID)
752 scc_s = "RAID";
753 else
754 scc_s = "unknown";
755
756 ahci_print_info(host, scc_s);
757 }
758
759 /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
760 * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
761 * support PMP and the 4726 either directly exports the device
762 * attached to the first downstream port or acts as a hardware storage
763 * controller and emulate a single ATA device (can be RAID 0/1 or some
764 * other configuration).
765 *
766 * When there's no device attached to the first downstream port of the
767 * 4726, "Config Disk" appears, which is a pseudo ATA device to
768 * configure the 4726. However, ATA emulation of the device is very
769 * lame. It doesn't send signature D2H Reg FIS after the initial
770 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
771 *
772 * The following function works around the problem by always using
773 * hardreset on the port and not depending on receiving signature FIS
774 * afterward. If signature FIS isn't received soon, ATA class is
775 * assumed without follow-up softreset.
776 */
777 static void ahci_p5wdh_workaround(struct ata_host *host)
778 {
779 static struct dmi_system_id sysids[] = {
780 {
781 .ident = "P5W DH Deluxe",
782 .matches = {
783 DMI_MATCH(DMI_SYS_VENDOR,
784 "ASUSTEK COMPUTER INC"),
785 DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
786 },
787 },
788 { }
789 };
790 struct pci_dev *pdev = to_pci_dev(host->dev);
791
792 if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
793 dmi_check_system(sysids)) {
794 struct ata_port *ap = host->ports[1];
795
796 dev_info(&pdev->dev,
797 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
798
799 ap->ops = &ahci_p5wdh_ops;
800 ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
801 }
802 }
803
804 /*
805 * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
806 * booting in BIOS compatibility mode. We restore the registers but not ID.
807 */
808 static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
809 {
810 u32 val;
811
812 printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
813
814 pci_read_config_dword(pdev, 0xf8, &val);
815 val |= 1 << 0x1b;
816 /* the following changes the device ID, but appears not to affect function */
817 /* val = (val & ~0xf0000000) | 0x80000000; */
818 pci_write_config_dword(pdev, 0xf8, val);
819
820 pci_read_config_dword(pdev, 0x54c, &val);
821 val |= 1 << 0xc;
822 pci_write_config_dword(pdev, 0x54c, val);
823
824 pci_read_config_dword(pdev, 0x4a4, &val);
825 val &= 0xff;
826 val |= 0x01060100;
827 pci_write_config_dword(pdev, 0x4a4, val);
828
829 pci_read_config_dword(pdev, 0x54c, &val);
830 val &= ~(1 << 0xc);
831 pci_write_config_dword(pdev, 0x54c, val);
832
833 pci_read_config_dword(pdev, 0xf8, &val);
834 val &= ~(1 << 0x1b);
835 pci_write_config_dword(pdev, 0xf8, val);
836 }
837
838 static bool is_mcp89_apple(struct pci_dev *pdev)
839 {
840 return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
841 pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
842 pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
843 pdev->subsystem_device == 0xcb89;
844 }
845
846 /* only some SB600 ahci controllers can do 64bit DMA */
847 static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
848 {
849 static const struct dmi_system_id sysids[] = {
850 /*
851 * The oldest version known to be broken is 0901 and
852 * working is 1501 which was released on 2007-10-26.
853 * Enable 64bit DMA on 1501 and anything newer.
854 *
855 * Please read bko#9412 for more info.
856 */
857 {
858 .ident = "ASUS M2A-VM",
859 .matches = {
860 DMI_MATCH(DMI_BOARD_VENDOR,
861 "ASUSTeK Computer INC."),
862 DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
863 },
864 .driver_data = "20071026", /* yyyymmdd */
865 },
866 /*
867 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
868 * support 64bit DMA.
869 *
870 * BIOS versions earlier than 1.5 had the Manufacturer DMI
871 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
872 * This spelling mistake was fixed in BIOS version 1.5, so
873 * 1.5 and later have the Manufacturer as
874 * "MICRO-STAR INTERNATIONAL CO.,LTD".
875 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
876 *
877 * BIOS versions earlier than 1.9 had a Board Product Name
878 * DMI field of "MS-7376". This was changed to be
879 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
880 * match on DMI_BOARD_NAME of "MS-7376".
881 */
882 {
883 .ident = "MSI K9A2 Platinum",
884 .matches = {
885 DMI_MATCH(DMI_BOARD_VENDOR,
886 "MICRO-STAR INTER"),
887 DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
888 },
889 },
890 /*
891 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
892 * 64bit DMA.
893 *
894 * This board also had the typo mentioned above in the
895 * Manufacturer DMI field (fixed in BIOS version 1.5), so
896 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
897 */
898 {
899 .ident = "MSI K9AGM2",
900 .matches = {
901 DMI_MATCH(DMI_BOARD_VENDOR,
902 "MICRO-STAR INTER"),
903 DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
904 },
905 },
906 /*
907 * All BIOS versions for the Asus M3A support 64bit DMA.
908 * (all release versions from 0301 to 1206 were tested)
909 */
910 {
911 .ident = "ASUS M3A",
912 .matches = {
913 DMI_MATCH(DMI_BOARD_VENDOR,
914 "ASUSTeK Computer INC."),
915 DMI_MATCH(DMI_BOARD_NAME, "M3A"),
916 },
917 },
918 { }
919 };
920 const struct dmi_system_id *match;
921 int year, month, date;
922 char buf[9];
923
924 match = dmi_first_match(sysids);
925 if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
926 !match)
927 return false;
928
929 if (!match->driver_data)
930 goto enable_64bit;
931
932 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
933 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
934
935 if (strcmp(buf, match->driver_data) >= 0)
936 goto enable_64bit;
937 else {
938 dev_warn(&pdev->dev,
939 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
940 match->ident);
941 return false;
942 }
943
944 enable_64bit:
945 dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
946 return true;
947 }
948
949 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
950 {
951 static const struct dmi_system_id broken_systems[] = {
952 {
953 .ident = "HP Compaq nx6310",
954 .matches = {
955 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
956 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
957 },
958 /* PCI slot number of the controller */
959 .driver_data = (void *)0x1FUL,
960 },
961 {
962 .ident = "HP Compaq 6720s",
963 .matches = {
964 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
965 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
966 },
967 /* PCI slot number of the controller */
968 .driver_data = (void *)0x1FUL,
969 },
970
971 { } /* terminate list */
972 };
973 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
974
975 if (dmi) {
976 unsigned long slot = (unsigned long)dmi->driver_data;
977 /* apply the quirk only to on-board controllers */
978 return slot == PCI_SLOT(pdev->devfn);
979 }
980
981 return false;
982 }
983
984 static bool ahci_broken_suspend(struct pci_dev *pdev)
985 {
986 static const struct dmi_system_id sysids[] = {
987 /*
988 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
989 * to the harddisk doesn't become online after
990 * resuming from STR. Warn and fail suspend.
991 *
992 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
993 *
994 * Use dates instead of versions to match as HP is
995 * apparently recycling both product and version
996 * strings.
997 *
998 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
999 */
1000 {
1001 .ident = "dv4",
1002 .matches = {
1003 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1004 DMI_MATCH(DMI_PRODUCT_NAME,
1005 "HP Pavilion dv4 Notebook PC"),
1006 },
1007 .driver_data = "20090105", /* F.30 */
1008 },
1009 {
1010 .ident = "dv5",
1011 .matches = {
1012 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1013 DMI_MATCH(DMI_PRODUCT_NAME,
1014 "HP Pavilion dv5 Notebook PC"),
1015 },
1016 .driver_data = "20090506", /* F.16 */
1017 },
1018 {
1019 .ident = "dv6",
1020 .matches = {
1021 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1022 DMI_MATCH(DMI_PRODUCT_NAME,
1023 "HP Pavilion dv6 Notebook PC"),
1024 },
1025 .driver_data = "20090423", /* F.21 */
1026 },
1027 {
1028 .ident = "HDX18",
1029 .matches = {
1030 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1031 DMI_MATCH(DMI_PRODUCT_NAME,
1032 "HP HDX18 Notebook PC"),
1033 },
1034 .driver_data = "20090430", /* F.23 */
1035 },
1036 /*
1037 * Acer eMachines G725 has the same problem. BIOS
1038 * V1.03 is known to be broken. V3.04 is known to
1039 * work. Between, there are V1.06, V2.06 and V3.03
1040 * that we don't have much idea about. For now,
1041 * blacklist anything older than V3.04.
1042 *
1043 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1044 */
1045 {
1046 .ident = "G725",
1047 .matches = {
1048 DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1049 DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1050 },
1051 .driver_data = "20091216", /* V3.04 */
1052 },
1053 { } /* terminate list */
1054 };
1055 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1056 int year, month, date;
1057 char buf[9];
1058
1059 if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1060 return false;
1061
1062 dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1063 snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1064
1065 return strcmp(buf, dmi->driver_data) < 0;
1066 }
1067
1068 static bool ahci_broken_online(struct pci_dev *pdev)
1069 {
1070 #define ENCODE_BUSDEVFN(bus, slot, func) \
1071 (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1072 static const struct dmi_system_id sysids[] = {
1073 /*
1074 * There are several gigabyte boards which use
1075 * SIMG5723s configured as hardware RAID. Certain
1076 * 5723 firmware revisions shipped there keep the link
1077 * online but fail to answer properly to SRST or
1078 * IDENTIFY when no device is attached downstream
1079 * causing libata to retry quite a few times leading
1080 * to excessive detection delay.
1081 *
1082 * As these firmwares respond to the second reset try
1083 * with invalid device signature, considering unknown
1084 * sig as offline works around the problem acceptably.
1085 */
1086 {
1087 .ident = "EP45-DQ6",
1088 .matches = {
1089 DMI_MATCH(DMI_BOARD_VENDOR,
1090 "Gigabyte Technology Co., Ltd."),
1091 DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1092 },
1093 .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1094 },
1095 {
1096 .ident = "EP45-DS5",
1097 .matches = {
1098 DMI_MATCH(DMI_BOARD_VENDOR,
1099 "Gigabyte Technology Co., Ltd."),
1100 DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1101 },
1102 .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1103 },
1104 { } /* terminate list */
1105 };
1106 #undef ENCODE_BUSDEVFN
1107 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1108 unsigned int val;
1109
1110 if (!dmi)
1111 return false;
1112
1113 val = (unsigned long)dmi->driver_data;
1114
1115 return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1116 }
1117
1118 static bool ahci_broken_devslp(struct pci_dev *pdev)
1119 {
1120 /* device with broken DEVSLP but still showing SDS capability */
1121 static const struct pci_device_id ids[] = {
1122 { PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1123 {}
1124 };
1125
1126 return pci_match_id(ids, pdev);
1127 }
1128
1129 #ifdef CONFIG_ATA_ACPI
1130 static void ahci_gtf_filter_workaround(struct ata_host *host)
1131 {
1132 static const struct dmi_system_id sysids[] = {
1133 /*
1134 * Aspire 3810T issues a bunch of SATA enable commands
1135 * via _GTF including an invalid one and one which is
1136 * rejected by the device. Among the successful ones
1137 * is FPDMA non-zero offset enable which when enabled
1138 * only on the drive side leads to NCQ command
1139 * failures. Filter it out.
1140 */
1141 {
1142 .ident = "Aspire 3810T",
1143 .matches = {
1144 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1145 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1146 },
1147 .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1148 },
1149 { }
1150 };
1151 const struct dmi_system_id *dmi = dmi_first_match(sysids);
1152 unsigned int filter;
1153 int i;
1154
1155 if (!dmi)
1156 return;
1157
1158 filter = (unsigned long)dmi->driver_data;
1159 dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1160 filter, dmi->ident);
1161
1162 for (i = 0; i < host->n_ports; i++) {
1163 struct ata_port *ap = host->ports[i];
1164 struct ata_link *link;
1165 struct ata_device *dev;
1166
1167 ata_for_each_link(link, ap, EDGE)
1168 ata_for_each_dev(dev, link, ALL)
1169 dev->gtf_filter |= filter;
1170 }
1171 }
1172 #else
1173 static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1174 {}
1175 #endif
1176
1177 static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
1178 struct ahci_host_priv *hpriv)
1179 {
1180 int rc, nvec;
1181
1182 if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1183 goto intx;
1184
1185 nvec = pci_msi_vec_count(pdev);
1186 if (nvec < 0)
1187 goto intx;
1188
1189 /*
1190 * If number of MSIs is less than number of ports then Sharing Last
1191 * Message mode could be enforced. In this case assume that advantage
1192 * of multipe MSIs is negated and use single MSI mode instead.
1193 */
1194 if (nvec < n_ports)
1195 goto single_msi;
1196
1197 rc = pci_enable_msi_exact(pdev, nvec);
1198 if (rc == -ENOSPC)
1199 goto single_msi;
1200 else if (rc < 0)
1201 goto intx;
1202
1203 /* fallback to single MSI mode if the controller enforced MRSM mode */
1204 if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
1205 pci_disable_msi(pdev);
1206 printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
1207 goto single_msi;
1208 }
1209
1210 return nvec;
1211
1212 single_msi:
1213 if (pci_enable_msi(pdev))
1214 goto intx;
1215 return 1;
1216
1217 intx:
1218 pci_intx(pdev, 1);
1219 return 0;
1220 }
1221
1222 /**
1223 * ahci_host_activate - start AHCI host, request IRQs and register it
1224 * @host: target ATA host
1225 * @irq: base IRQ number to request
1226 * @n_msis: number of MSIs allocated for this host
1227 * @irq_handler: irq_handler used when requesting IRQs
1228 * @irq_flags: irq_flags used when requesting IRQs
1229 *
1230 * Similar to ata_host_activate, but requests IRQs according to AHCI-1.1
1231 * when multiple MSIs were allocated. That is one MSI per port, starting
1232 * from @irq.
1233 *
1234 * LOCKING:
1235 * Inherited from calling layer (may sleep).
1236 *
1237 * RETURNS:
1238 * 0 on success, -errno otherwise.
1239 */
1240 int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis)
1241 {
1242 int i, rc;
1243
1244 /* Sharing Last Message among several ports is not supported */
1245 if (n_msis < host->n_ports)
1246 return -EINVAL;
1247
1248 rc = ata_host_start(host);
1249 if (rc)
1250 return rc;
1251
1252 for (i = 0; i < host->n_ports; i++) {
1253 struct ahci_port_priv *pp = host->ports[i]->private_data;
1254
1255 /* Do not receive interrupts sent by dummy ports */
1256 if (!pp) {
1257 disable_irq(irq + i);
1258 continue;
1259 }
1260
1261 rc = devm_request_threaded_irq(host->dev, irq + i,
1262 ahci_hw_interrupt,
1263 ahci_thread_fn, IRQF_SHARED,
1264 pp->irq_desc, host->ports[i]);
1265 if (rc)
1266 goto out_free_irqs;
1267 }
1268
1269 for (i = 0; i < host->n_ports; i++)
1270 ata_port_desc(host->ports[i], "irq %d", irq + i);
1271
1272 rc = ata_host_register(host, &ahci_sht);
1273 if (rc)
1274 goto out_free_all_irqs;
1275
1276 return 0;
1277
1278 out_free_all_irqs:
1279 i = host->n_ports;
1280 out_free_irqs:
1281 for (i--; i >= 0; i--)
1282 devm_free_irq(host->dev, irq + i, host->ports[i]);
1283
1284 return rc;
1285 }
1286
1287 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1288 {
1289 unsigned int board_id = ent->driver_data;
1290 struct ata_port_info pi = ahci_port_info[board_id];
1291 const struct ata_port_info *ppi[] = { &pi, NULL };
1292 struct device *dev = &pdev->dev;
1293 struct ahci_host_priv *hpriv;
1294 struct ata_host *host;
1295 int n_ports, n_msis, i, rc;
1296 int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1297
1298 VPRINTK("ENTER\n");
1299
1300 WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1301
1302 ata_print_version_once(&pdev->dev, DRV_VERSION);
1303
1304 /* The AHCI driver can only drive the SATA ports, the PATA driver
1305 can drive them all so if both drivers are selected make sure
1306 AHCI stays out of the way */
1307 if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1308 return -ENODEV;
1309
1310 /* Apple BIOS on MCP89 prevents us using AHCI */
1311 if (is_mcp89_apple(pdev))
1312 ahci_mcp89_apple_enable(pdev);
1313
1314 /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1315 * At the moment, we can only use the AHCI mode. Let the users know
1316 * that for SAS drives they're out of luck.
1317 */
1318 if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1319 dev_info(&pdev->dev,
1320 "PDC42819 can only drive SATA devices with this driver\n");
1321
1322 /* Both Connext and Enmotus devices use non-standard BARs */
1323 if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1324 ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1325 else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1326 ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1327
1328 /* acquire resources */
1329 rc = pcim_enable_device(pdev);
1330 if (rc)
1331 return rc;
1332
1333 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1334 (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1335 u8 map;
1336
1337 /* ICH6s share the same PCI ID for both piix and ahci
1338 * modes. Enabling ahci mode while MAP indicates
1339 * combined mode is a bad idea. Yield to ata_piix.
1340 */
1341 pci_read_config_byte(pdev, ICH_MAP, &map);
1342 if (map & 0x3) {
1343 dev_info(&pdev->dev,
1344 "controller is in combined mode, can't enable AHCI mode\n");
1345 return -ENODEV;
1346 }
1347 }
1348
1349 /* AHCI controllers often implement SFF compatible interface.
1350 * Grab all PCI BARs just in case.
1351 */
1352 rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1353 if (rc == -EBUSY)
1354 pcim_pin_device(pdev);
1355 if (rc)
1356 return rc;
1357
1358 hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1359 if (!hpriv)
1360 return -ENOMEM;
1361 hpriv->flags |= (unsigned long)pi.private_data;
1362
1363 /* MCP65 revision A1 and A2 can't do MSI */
1364 if (board_id == board_ahci_mcp65 &&
1365 (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1366 hpriv->flags |= AHCI_HFLAG_NO_MSI;
1367
1368 /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1369 if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1370 hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1371
1372 /* only some SB600s can do 64bit DMA */
1373 if (ahci_sb600_enable_64bit(pdev))
1374 hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1375
1376 hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1377
1378 /* must set flag prior to save config in order to take effect */
1379 if (ahci_broken_devslp(pdev))
1380 hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1381
1382 /* save initial config */
1383 ahci_pci_save_initial_config(pdev, hpriv);
1384
1385 /* prepare host */
1386 if (hpriv->cap & HOST_CAP_NCQ) {
1387 pi.flags |= ATA_FLAG_NCQ;
1388 /*
1389 * Auto-activate optimization is supposed to be
1390 * supported on all AHCI controllers indicating NCQ
1391 * capability, but it seems to be broken on some
1392 * chipsets including NVIDIAs.
1393 */
1394 if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1395 pi.flags |= ATA_FLAG_FPDMA_AA;
1396
1397 /*
1398 * All AHCI controllers should be forward-compatible
1399 * with the new auxiliary field. This code should be
1400 * conditionalized if any buggy AHCI controllers are
1401 * encountered.
1402 */
1403 pi.flags |= ATA_FLAG_FPDMA_AUX;
1404 }
1405
1406 if (hpriv->cap & HOST_CAP_PMP)
1407 pi.flags |= ATA_FLAG_PMP;
1408
1409 ahci_set_em_messages(hpriv, &pi);
1410
1411 if (ahci_broken_system_poweroff(pdev)) {
1412 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1413 dev_info(&pdev->dev,
1414 "quirky BIOS, skipping spindown on poweroff\n");
1415 }
1416
1417 if (ahci_broken_suspend(pdev)) {
1418 hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1419 dev_warn(&pdev->dev,
1420 "BIOS update required for suspend/resume\n");
1421 }
1422
1423 if (ahci_broken_online(pdev)) {
1424 hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1425 dev_info(&pdev->dev,
1426 "online status unreliable, applying workaround\n");
1427 }
1428
1429 /* CAP.NP sometimes indicate the index of the last enabled
1430 * port, at other times, that of the last possible port, so
1431 * determining the maximum port number requires looking at
1432 * both CAP.NP and port_map.
1433 */
1434 n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1435
1436 n_msis = ahci_init_interrupts(pdev, n_ports, hpriv);
1437 if (n_msis > 1)
1438 hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1439
1440 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1441 if (!host)
1442 return -ENOMEM;
1443 host->private_data = hpriv;
1444
1445 if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1446 host->flags |= ATA_HOST_PARALLEL_SCAN;
1447 else
1448 dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1449
1450 if (pi.flags & ATA_FLAG_EM)
1451 ahci_reset_em(host);
1452
1453 for (i = 0; i < host->n_ports; i++) {
1454 struct ata_port *ap = host->ports[i];
1455
1456 ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1457 ata_port_pbar_desc(ap, ahci_pci_bar,
1458 0x100 + ap->port_no * 0x80, "port");
1459
1460 /* set enclosure management message type */
1461 if (ap->flags & ATA_FLAG_EM)
1462 ap->em_message_type = hpriv->em_msg_type;
1463
1464
1465 /* disabled/not-implemented port */
1466 if (!(hpriv->port_map & (1 << i)))
1467 ap->ops = &ata_dummy_port_ops;
1468 }
1469
1470 /* apply workaround for ASUS P5W DH Deluxe mainboard */
1471 ahci_p5wdh_workaround(host);
1472
1473 /* apply gtf filter quirk */
1474 ahci_gtf_filter_workaround(host);
1475
1476 /* initialize adapter */
1477 rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1478 if (rc)
1479 return rc;
1480
1481 rc = ahci_pci_reset_controller(host);
1482 if (rc)
1483 return rc;
1484
1485 ahci_pci_init_controller(host);
1486 ahci_pci_print_info(host);
1487
1488 pci_set_master(pdev);
1489
1490 if (hpriv->flags & AHCI_HFLAG_MULTI_MSI)
1491 return ahci_host_activate(host, pdev->irq, n_msis);
1492
1493 return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1494 &ahci_sht);
1495 }
1496
1497 module_pci_driver(ahci_pci_driver);
1498
1499 MODULE_AUTHOR("Jeff Garzik");
1500 MODULE_DESCRIPTION("AHCI SATA low-level driver");
1501 MODULE_LICENSE("GPL");
1502 MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1503 MODULE_VERSION(DRV_VERSION);
(deprecated) Btrfs devel tree