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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ahci.c - AHCI SATA support | |
3 | * | |
af36d7f0 JG |
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: | |
1da177e4 | 30 | * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf |
af36d7f0 | 31 | * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf |
1da177e4 LT |
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> | |
87507cfd | 42 | #include <linux/dma-mapping.h> |
a9524a76 | 43 | #include <linux/device.h> |
edc93052 | 44 | #include <linux/dmi.h> |
1da177e4 | 45 | #include <scsi/scsi_host.h> |
193515d5 | 46 | #include <scsi/scsi_cmnd.h> |
1da177e4 | 47 | #include <linux/libata.h> |
1da177e4 LT |
48 | |
49 | #define DRV_NAME "ahci" | |
7d50b60b | 50 | #define DRV_VERSION "3.0" |
1da177e4 | 51 | |
87943acf DM |
52 | /* Enclosure Management Control */ |
53 | #define EM_CTRL_MSG_TYPE 0x000f0000 | |
54 | ||
55 | /* Enclosure Management LED Message Type */ | |
56 | #define EM_MSG_LED_HBA_PORT 0x0000000f | |
57 | #define EM_MSG_LED_PMP_SLOT 0x0000ff00 | |
58 | #define EM_MSG_LED_VALUE 0xffff0000 | |
59 | #define EM_MSG_LED_VALUE_ACTIVITY 0x00070000 | |
60 | #define EM_MSG_LED_VALUE_OFF 0xfff80000 | |
61 | #define EM_MSG_LED_VALUE_ON 0x00010000 | |
62 | ||
a22e6444 | 63 | static int ahci_skip_host_reset; |
f3d7f23f AV |
64 | static int ahci_ignore_sss; |
65 | ||
a22e6444 TH |
66 | module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444); |
67 | MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)"); | |
68 | ||
f3d7f23f AV |
69 | module_param_named(ignore_sss, ahci_ignore_sss, int, 0444); |
70 | MODULE_PARM_DESC(ignore_sss, "Ignore staggered spinup flag (0=don't ignore, 1=ignore)"); | |
71 | ||
31556594 KCA |
72 | static int ahci_enable_alpm(struct ata_port *ap, |
73 | enum link_pm policy); | |
74 | static void ahci_disable_alpm(struct ata_port *ap); | |
18f7ba4c KCA |
75 | static ssize_t ahci_led_show(struct ata_port *ap, char *buf); |
76 | static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, | |
77 | size_t size); | |
78 | static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, | |
79 | ssize_t size); | |
1da177e4 LT |
80 | |
81 | enum { | |
82 | AHCI_PCI_BAR = 5, | |
648a88be | 83 | AHCI_MAX_PORTS = 32, |
1da177e4 LT |
84 | AHCI_MAX_SG = 168, /* hardware max is 64K */ |
85 | AHCI_DMA_BOUNDARY = 0xffffffff, | |
12fad3f9 | 86 | AHCI_MAX_CMDS = 32, |
dd410ff1 | 87 | AHCI_CMD_SZ = 32, |
12fad3f9 | 88 | AHCI_CMD_SLOT_SZ = AHCI_MAX_CMDS * AHCI_CMD_SZ, |
1da177e4 | 89 | AHCI_RX_FIS_SZ = 256, |
a0ea7328 | 90 | AHCI_CMD_TBL_CDB = 0x40, |
dd410ff1 TH |
91 | AHCI_CMD_TBL_HDR_SZ = 0x80, |
92 | AHCI_CMD_TBL_SZ = AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16), | |
93 | AHCI_CMD_TBL_AR_SZ = AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS, | |
94 | AHCI_PORT_PRIV_DMA_SZ = AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ + | |
1da177e4 | 95 | AHCI_RX_FIS_SZ, |
d6ef3153 SH |
96 | AHCI_PORT_PRIV_FBS_DMA_SZ = AHCI_CMD_SLOT_SZ + |
97 | AHCI_CMD_TBL_AR_SZ + | |
98 | (AHCI_RX_FIS_SZ * 16), | |
1da177e4 LT |
99 | AHCI_IRQ_ON_SG = (1 << 31), |
100 | AHCI_CMD_ATAPI = (1 << 5), | |
101 | AHCI_CMD_WRITE = (1 << 6), | |
4b10e559 | 102 | AHCI_CMD_PREFETCH = (1 << 7), |
22b49985 TH |
103 | AHCI_CMD_RESET = (1 << 8), |
104 | AHCI_CMD_CLR_BUSY = (1 << 10), | |
1da177e4 LT |
105 | |
106 | RX_FIS_D2H_REG = 0x40, /* offset of D2H Register FIS data */ | |
0291f95f | 107 | RX_FIS_SDB = 0x58, /* offset of SDB FIS data */ |
78cd52d0 | 108 | RX_FIS_UNK = 0x60, /* offset of Unknown FIS data */ |
1da177e4 LT |
109 | |
110 | board_ahci = 0, | |
7a234aff TH |
111 | board_ahci_vt8251 = 1, |
112 | board_ahci_ign_iferr = 2, | |
113 | board_ahci_sb600 = 3, | |
114 | board_ahci_mv = 4, | |
e427fe04 | 115 | board_ahci_sb700 = 5, /* for SB700 and SB800 */ |
e297d99e | 116 | board_ahci_mcp65 = 6, |
9a3b103c | 117 | board_ahci_nopmp = 7, |
aa431dd3 | 118 | board_ahci_yesncq = 8, |
1b677afd | 119 | board_ahci_nosntf = 9, |
1da177e4 LT |
120 | |
121 | /* global controller registers */ | |
122 | HOST_CAP = 0x00, /* host capabilities */ | |
123 | HOST_CTL = 0x04, /* global host control */ | |
124 | HOST_IRQ_STAT = 0x08, /* interrupt status */ | |
125 | HOST_PORTS_IMPL = 0x0c, /* bitmap of implemented ports */ | |
126 | HOST_VERSION = 0x10, /* AHCI spec. version compliancy */ | |
18f7ba4c KCA |
127 | HOST_EM_LOC = 0x1c, /* Enclosure Management location */ |
128 | HOST_EM_CTL = 0x20, /* Enclosure Management Control */ | |
4c521c8e | 129 | HOST_CAP2 = 0x24, /* host capabilities, extended */ |
1da177e4 LT |
130 | |
131 | /* HOST_CTL bits */ | |
132 | HOST_RESET = (1 << 0), /* reset controller; self-clear */ | |
133 | HOST_IRQ_EN = (1 << 1), /* global IRQ enable */ | |
134 | HOST_AHCI_EN = (1 << 31), /* AHCI enabled */ | |
135 | ||
136 | /* HOST_CAP bits */ | |
4c521c8e | 137 | HOST_CAP_SXS = (1 << 5), /* Supports External SATA */ |
18f7ba4c | 138 | HOST_CAP_EMS = (1 << 6), /* Enclosure Management support */ |
4c521c8e RH |
139 | HOST_CAP_CCC = (1 << 7), /* Command Completion Coalescing */ |
140 | HOST_CAP_PART = (1 << 13), /* Partial state capable */ | |
141 | HOST_CAP_SSC = (1 << 14), /* Slumber state capable */ | |
142 | HOST_CAP_PIO_MULTI = (1 << 15), /* PIO multiple DRQ support */ | |
143 | HOST_CAP_FBS = (1 << 16), /* FIS-based switching support */ | |
7d50b60b | 144 | HOST_CAP_PMP = (1 << 17), /* Port Multiplier support */ |
4c521c8e | 145 | HOST_CAP_ONLY = (1 << 18), /* Supports AHCI mode only */ |
22b49985 | 146 | HOST_CAP_CLO = (1 << 24), /* Command List Override support */ |
4c521c8e | 147 | HOST_CAP_LED = (1 << 25), /* Supports activity LED */ |
31556594 | 148 | HOST_CAP_ALPM = (1 << 26), /* Aggressive Link PM support */ |
0be0aa98 | 149 | HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */ |
4c521c8e | 150 | HOST_CAP_MPS = (1 << 28), /* Mechanical presence switch */ |
203ef6c4 | 151 | HOST_CAP_SNTF = (1 << 29), /* SNotification register */ |
979db803 | 152 | HOST_CAP_NCQ = (1 << 30), /* Native Command Queueing */ |
dd410ff1 | 153 | HOST_CAP_64 = (1 << 31), /* PCI DAC (64-bit DMA) support */ |
1da177e4 | 154 | |
4c521c8e RH |
155 | /* HOST_CAP2 bits */ |
156 | HOST_CAP2_BOH = (1 << 0), /* BIOS/OS handoff supported */ | |
157 | HOST_CAP2_NVMHCI = (1 << 1), /* NVMHCI supported */ | |
158 | HOST_CAP2_APST = (1 << 2), /* Automatic partial to slumber */ | |
159 | ||
1da177e4 LT |
160 | /* registers for each SATA port */ |
161 | PORT_LST_ADDR = 0x00, /* command list DMA addr */ | |
162 | PORT_LST_ADDR_HI = 0x04, /* command list DMA addr hi */ | |
163 | PORT_FIS_ADDR = 0x08, /* FIS rx buf addr */ | |
164 | PORT_FIS_ADDR_HI = 0x0c, /* FIS rx buf addr hi */ | |
165 | PORT_IRQ_STAT = 0x10, /* interrupt status */ | |
166 | PORT_IRQ_MASK = 0x14, /* interrupt enable/disable mask */ | |
167 | PORT_CMD = 0x18, /* port command */ | |
168 | PORT_TFDATA = 0x20, /* taskfile data */ | |
169 | PORT_SIG = 0x24, /* device TF signature */ | |
170 | PORT_CMD_ISSUE = 0x38, /* command issue */ | |
1da177e4 LT |
171 | PORT_SCR_STAT = 0x28, /* SATA phy register: SStatus */ |
172 | PORT_SCR_CTL = 0x2c, /* SATA phy register: SControl */ | |
173 | PORT_SCR_ERR = 0x30, /* SATA phy register: SError */ | |
174 | PORT_SCR_ACT = 0x34, /* SATA phy register: SActive */ | |
203ef6c4 | 175 | PORT_SCR_NTF = 0x3c, /* SATA phy register: SNotification */ |
d6ef3153 | 176 | PORT_FBS = 0x40, /* FIS-based Switching */ |
1da177e4 LT |
177 | |
178 | /* PORT_IRQ_{STAT,MASK} bits */ | |
179 | PORT_IRQ_COLD_PRES = (1 << 31), /* cold presence detect */ | |
180 | PORT_IRQ_TF_ERR = (1 << 30), /* task file error */ | |
181 | PORT_IRQ_HBUS_ERR = (1 << 29), /* host bus fatal error */ | |
182 | PORT_IRQ_HBUS_DATA_ERR = (1 << 28), /* host bus data error */ | |
183 | PORT_IRQ_IF_ERR = (1 << 27), /* interface fatal error */ | |
184 | PORT_IRQ_IF_NONFATAL = (1 << 26), /* interface non-fatal error */ | |
185 | PORT_IRQ_OVERFLOW = (1 << 24), /* xfer exhausted available S/G */ | |
186 | PORT_IRQ_BAD_PMP = (1 << 23), /* incorrect port multiplier */ | |
187 | ||
188 | PORT_IRQ_PHYRDY = (1 << 22), /* PhyRdy changed */ | |
189 | PORT_IRQ_DEV_ILCK = (1 << 7), /* device interlock */ | |
190 | PORT_IRQ_CONNECT = (1 << 6), /* port connect change status */ | |
191 | PORT_IRQ_SG_DONE = (1 << 5), /* descriptor processed */ | |
192 | PORT_IRQ_UNK_FIS = (1 << 4), /* unknown FIS rx'd */ | |
193 | PORT_IRQ_SDB_FIS = (1 << 3), /* Set Device Bits FIS rx'd */ | |
194 | PORT_IRQ_DMAS_FIS = (1 << 2), /* DMA Setup FIS rx'd */ | |
195 | PORT_IRQ_PIOS_FIS = (1 << 1), /* PIO Setup FIS rx'd */ | |
196 | PORT_IRQ_D2H_REG_FIS = (1 << 0), /* D2H Register FIS rx'd */ | |
197 | ||
78cd52d0 TH |
198 | PORT_IRQ_FREEZE = PORT_IRQ_HBUS_ERR | |
199 | PORT_IRQ_IF_ERR | | |
200 | PORT_IRQ_CONNECT | | |
4296971d | 201 | PORT_IRQ_PHYRDY | |
7d50b60b TH |
202 | PORT_IRQ_UNK_FIS | |
203 | PORT_IRQ_BAD_PMP, | |
78cd52d0 TH |
204 | PORT_IRQ_ERROR = PORT_IRQ_FREEZE | |
205 | PORT_IRQ_TF_ERR | | |
206 | PORT_IRQ_HBUS_DATA_ERR, | |
207 | DEF_PORT_IRQ = PORT_IRQ_ERROR | PORT_IRQ_SG_DONE | | |
208 | PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS | | |
209 | PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS, | |
1da177e4 LT |
210 | |
211 | /* PORT_CMD bits */ | |
31556594 KCA |
212 | PORT_CMD_ASP = (1 << 27), /* Aggressive Slumber/Partial */ |
213 | PORT_CMD_ALPE = (1 << 26), /* Aggressive Link PM enable */ | |
02eaa666 | 214 | PORT_CMD_ATAPI = (1 << 24), /* Device is ATAPI */ |
d6ef3153 | 215 | PORT_CMD_FBSCP = (1 << 22), /* FBS Capable Port */ |
7d50b60b | 216 | PORT_CMD_PMP = (1 << 17), /* PMP attached */ |
1da177e4 LT |
217 | PORT_CMD_LIST_ON = (1 << 15), /* cmd list DMA engine running */ |
218 | PORT_CMD_FIS_ON = (1 << 14), /* FIS DMA engine running */ | |
219 | PORT_CMD_FIS_RX = (1 << 4), /* Enable FIS receive DMA engine */ | |
22b49985 | 220 | PORT_CMD_CLO = (1 << 3), /* Command list override */ |
1da177e4 LT |
221 | PORT_CMD_POWER_ON = (1 << 2), /* Power up device */ |
222 | PORT_CMD_SPIN_UP = (1 << 1), /* Spin up device */ | |
223 | PORT_CMD_START = (1 << 0), /* Enable port DMA engine */ | |
224 | ||
0be0aa98 | 225 | PORT_CMD_ICC_MASK = (0xf << 28), /* i/f ICC state mask */ |
1da177e4 LT |
226 | PORT_CMD_ICC_ACTIVE = (0x1 << 28), /* Put i/f in active state */ |
227 | PORT_CMD_ICC_PARTIAL = (0x2 << 28), /* Put i/f in partial state */ | |
228 | PORT_CMD_ICC_SLUMBER = (0x6 << 28), /* Put i/f in slumber state */ | |
4b0060f4 | 229 | |
d6ef3153 SH |
230 | PORT_FBS_DWE_OFFSET = 16, /* FBS device with error offset */ |
231 | PORT_FBS_ADO_OFFSET = 12, /* FBS active dev optimization offset */ | |
232 | PORT_FBS_DEV_OFFSET = 8, /* FBS device to issue offset */ | |
233 | PORT_FBS_DEV_MASK = (0xf << PORT_FBS_DEV_OFFSET), /* FBS.DEV */ | |
234 | PORT_FBS_SDE = (1 << 2), /* FBS single device error */ | |
235 | PORT_FBS_DEC = (1 << 1), /* FBS device error clear */ | |
236 | PORT_FBS_EN = (1 << 0), /* Enable FBS */ | |
237 | ||
417a1a6d TH |
238 | /* hpriv->flags bits */ |
239 | AHCI_HFLAG_NO_NCQ = (1 << 0), | |
240 | AHCI_HFLAG_IGN_IRQ_IF_ERR = (1 << 1), /* ignore IRQ_IF_ERR */ | |
241 | AHCI_HFLAG_IGN_SERR_INTERNAL = (1 << 2), /* ignore SERR_INTERNAL */ | |
242 | AHCI_HFLAG_32BIT_ONLY = (1 << 3), /* force 32bit */ | |
243 | AHCI_HFLAG_MV_PATA = (1 << 4), /* PATA port */ | |
244 | AHCI_HFLAG_NO_MSI = (1 << 5), /* no PCI MSI */ | |
6949b914 | 245 | AHCI_HFLAG_NO_PMP = (1 << 6), /* no PMP */ |
31556594 | 246 | AHCI_HFLAG_NO_HOTPLUG = (1 << 7), /* ignore PxSERR.DIAG.N */ |
a878539e | 247 | AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */ |
e297d99e | 248 | AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */ |
9b10ae86 | 249 | AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */ |
5594639a TH |
250 | AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as |
251 | link offline */ | |
1b677afd | 252 | AHCI_HFLAG_NO_SNTF = (1 << 12), /* no sntf */ |
417a1a6d | 253 | |
bf2af2a2 | 254 | /* ap->flags bits */ |
1188c0d8 TH |
255 | |
256 | AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | | |
257 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | | |
31556594 KCA |
258 | ATA_FLAG_ACPI_SATA | ATA_FLAG_AN | |
259 | ATA_FLAG_IPM, | |
c4f7792c TH |
260 | |
261 | ICH_MAP = 0x90, /* ICH MAP register */ | |
18f7ba4c | 262 | |
d50ce07d TH |
263 | /* em constants */ |
264 | EM_MAX_SLOTS = 8, | |
265 | EM_MAX_RETRY = 5, | |
266 | ||
18f7ba4c KCA |
267 | /* em_ctl bits */ |
268 | EM_CTL_RST = (1 << 9), /* Reset */ | |
269 | EM_CTL_TM = (1 << 8), /* Transmit Message */ | |
270 | EM_CTL_ALHD = (1 << 26), /* Activity LED */ | |
1da177e4 LT |
271 | }; |
272 | ||
273 | struct ahci_cmd_hdr { | |
4ca4e439 AV |
274 | __le32 opts; |
275 | __le32 status; | |
276 | __le32 tbl_addr; | |
277 | __le32 tbl_addr_hi; | |
278 | __le32 reserved[4]; | |
1da177e4 LT |
279 | }; |
280 | ||
281 | struct ahci_sg { | |
4ca4e439 AV |
282 | __le32 addr; |
283 | __le32 addr_hi; | |
284 | __le32 reserved; | |
285 | __le32 flags_size; | |
1da177e4 LT |
286 | }; |
287 | ||
18f7ba4c KCA |
288 | struct ahci_em_priv { |
289 | enum sw_activity blink_policy; | |
290 | struct timer_list timer; | |
291 | unsigned long saved_activity; | |
292 | unsigned long activity; | |
293 | unsigned long led_state; | |
294 | }; | |
295 | ||
1da177e4 | 296 | struct ahci_host_priv { |
417a1a6d | 297 | unsigned int flags; /* AHCI_HFLAG_* */ |
d447df14 | 298 | u32 cap; /* cap to use */ |
4c521c8e | 299 | u32 cap2; /* cap2 to use */ |
d447df14 TH |
300 | u32 port_map; /* port map to use */ |
301 | u32 saved_cap; /* saved initial cap */ | |
4c521c8e | 302 | u32 saved_cap2; /* saved initial cap2 */ |
d447df14 | 303 | u32 saved_port_map; /* saved initial port_map */ |
18f7ba4c | 304 | u32 em_loc; /* enclosure management location */ |
1da177e4 LT |
305 | }; |
306 | ||
307 | struct ahci_port_priv { | |
7d50b60b | 308 | struct ata_link *active_link; |
1da177e4 LT |
309 | struct ahci_cmd_hdr *cmd_slot; |
310 | dma_addr_t cmd_slot_dma; | |
311 | void *cmd_tbl; | |
312 | dma_addr_t cmd_tbl_dma; | |
1da177e4 LT |
313 | void *rx_fis; |
314 | dma_addr_t rx_fis_dma; | |
0291f95f | 315 | /* for NCQ spurious interrupt analysis */ |
0291f95f TH |
316 | unsigned int ncq_saw_d2h:1; |
317 | unsigned int ncq_saw_dmas:1; | |
afb2d552 | 318 | unsigned int ncq_saw_sdb:1; |
a7384925 | 319 | u32 intr_mask; /* interrupts to enable */ |
d6ef3153 SH |
320 | bool fbs_supported; /* set iff FBS is supported */ |
321 | bool fbs_enabled; /* set iff FBS is enabled */ | |
322 | int fbs_last_dev; /* save FBS.DEV of last FIS */ | |
d50ce07d TH |
323 | /* enclosure management info per PM slot */ |
324 | struct ahci_em_priv em_priv[EM_MAX_SLOTS]; | |
1da177e4 LT |
325 | }; |
326 | ||
82ef04fb TH |
327 | static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); |
328 | static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); | |
2dcb407e | 329 | static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
9a3d9eb0 | 330 | static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc); |
4c9bf4e7 | 331 | static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc); |
1da177e4 LT |
332 | static int ahci_port_start(struct ata_port *ap); |
333 | static void ahci_port_stop(struct ata_port *ap); | |
d6ef3153 | 334 | static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc); |
1da177e4 | 335 | static void ahci_qc_prep(struct ata_queued_cmd *qc); |
78cd52d0 TH |
336 | static void ahci_freeze(struct ata_port *ap); |
337 | static void ahci_thaw(struct ata_port *ap); | |
d6ef3153 SH |
338 | static void ahci_enable_fbs(struct ata_port *ap); |
339 | static void ahci_disable_fbs(struct ata_port *ap); | |
7d50b60b TH |
340 | static void ahci_pmp_attach(struct ata_port *ap); |
341 | static void ahci_pmp_detach(struct ata_port *ap); | |
a1efdaba TH |
342 | static int ahci_softreset(struct ata_link *link, unsigned int *class, |
343 | unsigned long deadline); | |
bd17243a SH |
344 | static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class, |
345 | unsigned long deadline); | |
a1efdaba TH |
346 | static int ahci_hardreset(struct ata_link *link, unsigned int *class, |
347 | unsigned long deadline); | |
348 | static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class, | |
349 | unsigned long deadline); | |
350 | static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, | |
351 | unsigned long deadline); | |
352 | static void ahci_postreset(struct ata_link *link, unsigned int *class); | |
78cd52d0 TH |
353 | static void ahci_error_handler(struct ata_port *ap); |
354 | static void ahci_post_internal_cmd(struct ata_queued_cmd *qc); | |
df69c9c5 | 355 | static int ahci_port_resume(struct ata_port *ap); |
a878539e | 356 | static void ahci_dev_config(struct ata_device *dev); |
dab632e8 JG |
357 | static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag, |
358 | u32 opts); | |
438ac6d5 | 359 | #ifdef CONFIG_PM |
c1332875 | 360 | static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg); |
c1332875 TH |
361 | static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); |
362 | static int ahci_pci_device_resume(struct pci_dev *pdev); | |
438ac6d5 | 363 | #endif |
18f7ba4c KCA |
364 | static ssize_t ahci_activity_show(struct ata_device *dev, char *buf); |
365 | static ssize_t ahci_activity_store(struct ata_device *dev, | |
366 | enum sw_activity val); | |
367 | static void ahci_init_sw_activity(struct ata_link *link); | |
1da177e4 | 368 | |
77cdec1a MG |
369 | static ssize_t ahci_show_host_caps(struct device *dev, |
370 | struct device_attribute *attr, char *buf); | |
4c521c8e RH |
371 | static ssize_t ahci_show_host_cap2(struct device *dev, |
372 | struct device_attribute *attr, char *buf); | |
77cdec1a MG |
373 | static ssize_t ahci_show_host_version(struct device *dev, |
374 | struct device_attribute *attr, char *buf); | |
375 | static ssize_t ahci_show_port_cmd(struct device *dev, | |
376 | struct device_attribute *attr, char *buf); | |
377 | ||
378 | DEVICE_ATTR(ahci_host_caps, S_IRUGO, ahci_show_host_caps, NULL); | |
4c521c8e | 379 | DEVICE_ATTR(ahci_host_cap2, S_IRUGO, ahci_show_host_cap2, NULL); |
77cdec1a MG |
380 | DEVICE_ATTR(ahci_host_version, S_IRUGO, ahci_show_host_version, NULL); |
381 | DEVICE_ATTR(ahci_port_cmd, S_IRUGO, ahci_show_port_cmd, NULL); | |
382 | ||
ee959b00 TJ |
383 | static struct device_attribute *ahci_shost_attrs[] = { |
384 | &dev_attr_link_power_management_policy, | |
18f7ba4c KCA |
385 | &dev_attr_em_message_type, |
386 | &dev_attr_em_message, | |
77cdec1a | 387 | &dev_attr_ahci_host_caps, |
4c521c8e | 388 | &dev_attr_ahci_host_cap2, |
77cdec1a MG |
389 | &dev_attr_ahci_host_version, |
390 | &dev_attr_ahci_port_cmd, | |
18f7ba4c KCA |
391 | NULL |
392 | }; | |
393 | ||
394 | static struct device_attribute *ahci_sdev_attrs[] = { | |
395 | &dev_attr_sw_activity, | |
45fabbb7 | 396 | &dev_attr_unload_heads, |
31556594 KCA |
397 | NULL |
398 | }; | |
399 | ||
193515d5 | 400 | static struct scsi_host_template ahci_sht = { |
68d1d07b | 401 | ATA_NCQ_SHT(DRV_NAME), |
12fad3f9 | 402 | .can_queue = AHCI_MAX_CMDS - 1, |
1da177e4 | 403 | .sg_tablesize = AHCI_MAX_SG, |
1da177e4 | 404 | .dma_boundary = AHCI_DMA_BOUNDARY, |
31556594 | 405 | .shost_attrs = ahci_shost_attrs, |
18f7ba4c | 406 | .sdev_attrs = ahci_sdev_attrs, |
1da177e4 LT |
407 | }; |
408 | ||
029cfd6b TH |
409 | static struct ata_port_operations ahci_ops = { |
410 | .inherits = &sata_pmp_port_ops, | |
411 | ||
d6ef3153 | 412 | .qc_defer = ahci_pmp_qc_defer, |
1da177e4 LT |
413 | .qc_prep = ahci_qc_prep, |
414 | .qc_issue = ahci_qc_issue, | |
4c9bf4e7 | 415 | .qc_fill_rtf = ahci_qc_fill_rtf, |
1da177e4 | 416 | |
78cd52d0 TH |
417 | .freeze = ahci_freeze, |
418 | .thaw = ahci_thaw, | |
a1efdaba TH |
419 | .softreset = ahci_softreset, |
420 | .hardreset = ahci_hardreset, | |
421 | .postreset = ahci_postreset, | |
071f44b1 | 422 | .pmp_softreset = ahci_softreset, |
78cd52d0 TH |
423 | .error_handler = ahci_error_handler, |
424 | .post_internal_cmd = ahci_post_internal_cmd, | |
6bd99b4e TH |
425 | .dev_config = ahci_dev_config, |
426 | ||
ad616ffb TH |
427 | .scr_read = ahci_scr_read, |
428 | .scr_write = ahci_scr_write, | |
7d50b60b TH |
429 | .pmp_attach = ahci_pmp_attach, |
430 | .pmp_detach = ahci_pmp_detach, | |
7d50b60b | 431 | |
029cfd6b TH |
432 | .enable_pm = ahci_enable_alpm, |
433 | .disable_pm = ahci_disable_alpm, | |
18f7ba4c KCA |
434 | .em_show = ahci_led_show, |
435 | .em_store = ahci_led_store, | |
436 | .sw_activity_show = ahci_activity_show, | |
437 | .sw_activity_store = ahci_activity_store, | |
438ac6d5 | 438 | #ifdef CONFIG_PM |
ad616ffb TH |
439 | .port_suspend = ahci_port_suspend, |
440 | .port_resume = ahci_port_resume, | |
438ac6d5 | 441 | #endif |
ad616ffb TH |
442 | .port_start = ahci_port_start, |
443 | .port_stop = ahci_port_stop, | |
444 | }; | |
445 | ||
029cfd6b TH |
446 | static struct ata_port_operations ahci_vt8251_ops = { |
447 | .inherits = &ahci_ops, | |
a1efdaba | 448 | .hardreset = ahci_vt8251_hardreset, |
029cfd6b | 449 | }; |
edc93052 | 450 | |
029cfd6b TH |
451 | static struct ata_port_operations ahci_p5wdh_ops = { |
452 | .inherits = &ahci_ops, | |
a1efdaba | 453 | .hardreset = ahci_p5wdh_hardreset, |
edc93052 TH |
454 | }; |
455 | ||
bd17243a SH |
456 | static struct ata_port_operations ahci_sb600_ops = { |
457 | .inherits = &ahci_ops, | |
458 | .softreset = ahci_sb600_softreset, | |
459 | .pmp_softreset = ahci_sb600_softreset, | |
460 | }; | |
461 | ||
417a1a6d TH |
462 | #define AHCI_HFLAGS(flags) .private_data = (void *)(flags) |
463 | ||
98ac62de | 464 | static const struct ata_port_info ahci_port_info[] = { |
4da646b7 | 465 | [board_ahci] = |
1da177e4 | 466 | { |
1188c0d8 | 467 | .flags = AHCI_FLAG_COMMON, |
14bdef98 | 468 | .pio_mask = ATA_PIO4, |
469248ab | 469 | .udma_mask = ATA_UDMA6, |
1da177e4 LT |
470 | .port_ops = &ahci_ops, |
471 | }, | |
4da646b7 | 472 | [board_ahci_vt8251] = |
bf2af2a2 | 473 | { |
6949b914 | 474 | AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP), |
417a1a6d | 475 | .flags = AHCI_FLAG_COMMON, |
14bdef98 | 476 | .pio_mask = ATA_PIO4, |
469248ab | 477 | .udma_mask = ATA_UDMA6, |
ad616ffb | 478 | .port_ops = &ahci_vt8251_ops, |
bf2af2a2 | 479 | }, |
4da646b7 | 480 | [board_ahci_ign_iferr] = |
41669553 | 481 | { |
417a1a6d TH |
482 | AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR), |
483 | .flags = AHCI_FLAG_COMMON, | |
14bdef98 | 484 | .pio_mask = ATA_PIO4, |
469248ab | 485 | .udma_mask = ATA_UDMA6, |
41669553 TH |
486 | .port_ops = &ahci_ops, |
487 | }, | |
4da646b7 | 488 | [board_ahci_sb600] = |
55a61604 | 489 | { |
417a1a6d | 490 | AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | |
2fcad9d2 TH |
491 | AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 | |
492 | AHCI_HFLAG_32BIT_ONLY), | |
417a1a6d | 493 | .flags = AHCI_FLAG_COMMON, |
14bdef98 | 494 | .pio_mask = ATA_PIO4, |
469248ab | 495 | .udma_mask = ATA_UDMA6, |
bd17243a | 496 | .port_ops = &ahci_sb600_ops, |
55a61604 | 497 | }, |
4da646b7 | 498 | [board_ahci_mv] = |
cd70c266 | 499 | { |
417a1a6d | 500 | AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI | |
17248461 | 501 | AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP), |
cd70c266 | 502 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
417a1a6d | 503 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, |
14bdef98 | 504 | .pio_mask = ATA_PIO4, |
cd70c266 JG |
505 | .udma_mask = ATA_UDMA6, |
506 | .port_ops = &ahci_ops, | |
507 | }, | |
4da646b7 | 508 | [board_ahci_sb700] = /* for SB700 and SB800 */ |
e39fc8c9 | 509 | { |
bd17243a | 510 | AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL), |
e39fc8c9 | 511 | .flags = AHCI_FLAG_COMMON, |
14bdef98 | 512 | .pio_mask = ATA_PIO4, |
e39fc8c9 | 513 | .udma_mask = ATA_UDMA6, |
bd17243a | 514 | .port_ops = &ahci_sb600_ops, |
e39fc8c9 | 515 | }, |
4da646b7 | 516 | [board_ahci_mcp65] = |
e297d99e TH |
517 | { |
518 | AHCI_HFLAGS (AHCI_HFLAG_YES_NCQ), | |
519 | .flags = AHCI_FLAG_COMMON, | |
14bdef98 | 520 | .pio_mask = ATA_PIO4, |
e297d99e TH |
521 | .udma_mask = ATA_UDMA6, |
522 | .port_ops = &ahci_ops, | |
523 | }, | |
4da646b7 | 524 | [board_ahci_nopmp] = |
9a3b103c TH |
525 | { |
526 | AHCI_HFLAGS (AHCI_HFLAG_NO_PMP), | |
527 | .flags = AHCI_FLAG_COMMON, | |
14bdef98 | 528 | .pio_mask = ATA_PIO4, |
9a3b103c TH |
529 | .udma_mask = ATA_UDMA6, |
530 | .port_ops = &ahci_ops, | |
531 | }, | |
1b677afd | 532 | [board_ahci_yesncq] = |
aa431dd3 TH |
533 | { |
534 | AHCI_HFLAGS (AHCI_HFLAG_YES_NCQ), | |
535 | .flags = AHCI_FLAG_COMMON, | |
536 | .pio_mask = ATA_PIO4, | |
537 | .udma_mask = ATA_UDMA6, | |
538 | .port_ops = &ahci_ops, | |
539 | }, | |
1b677afd SL |
540 | [board_ahci_nosntf] = |
541 | { | |
542 | AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF), | |
543 | .flags = AHCI_FLAG_COMMON, | |
544 | .pio_mask = ATA_PIO4, | |
545 | .udma_mask = ATA_UDMA6, | |
546 | .port_ops = &ahci_ops, | |
547 | }, | |
1da177e4 LT |
548 | }; |
549 | ||
3b7d697d | 550 | static const struct pci_device_id ahci_pci_tbl[] = { |
fe7fa31a | 551 | /* Intel */ |
54bb3a94 JG |
552 | { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */ |
553 | { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */ | |
554 | { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */ | |
555 | { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */ | |
556 | { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */ | |
82490c09 | 557 | { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */ |
54bb3a94 JG |
558 | { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */ |
559 | { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */ | |
560 | { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */ | |
561 | { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */ | |
7a234aff | 562 | { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */ |
1b677afd | 563 | { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */ |
7a234aff TH |
564 | { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */ |
565 | { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */ | |
566 | { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */ | |
567 | { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */ | |
568 | { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */ | |
569 | { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */ | |
570 | { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */ | |
571 | { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */ | |
572 | { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */ | |
573 | { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */ | |
574 | { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */ | |
575 | { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */ | |
576 | { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */ | |
577 | { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */ | |
578 | { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */ | |
d4155e6f JG |
579 | { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */ |
580 | { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */ | |
16ad1ad9 | 581 | { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */ |
b2dde6af | 582 | { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */ |
16ad1ad9 | 583 | { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */ |
c1f57d9b DM |
584 | { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */ |
585 | { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */ | |
adcb5308 | 586 | { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */ |
8e48b6b3 | 587 | { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */ |
c1f57d9b | 588 | { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */ |
adcb5308 | 589 | { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */ |
8e48b6b3 | 590 | { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */ |
c1f57d9b | 591 | { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */ |
fe7fa31a | 592 | |
e34bb370 TH |
593 | /* JMicron 360/1/3/5/6, match class to avoid IDE function */ |
594 | { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, | |
595 | PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr }, | |
fe7fa31a JG |
596 | |
597 | /* ATI */ | |
c65ec1c2 | 598 | { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */ |
e39fc8c9 SH |
599 | { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */ |
600 | { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */ | |
601 | { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */ | |
602 | { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */ | |
603 | { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */ | |
604 | { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */ | |
fe7fa31a | 605 | |
e2dd90b1 | 606 | /* AMD */ |
5deab536 | 607 | { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */ |
e2dd90b1 SH |
608 | /* AMD is using RAID class only for ahci controllers */ |
609 | { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, | |
610 | PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci }, | |
611 | ||
fe7fa31a | 612 | /* VIA */ |
54bb3a94 | 613 | { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */ |
bf335542 | 614 | { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */ |
fe7fa31a JG |
615 | |
616 | /* NVIDIA */ | |
e297d99e TH |
617 | { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */ |
618 | { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */ | |
619 | { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */ | |
620 | { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */ | |
621 | { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */ | |
622 | { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */ | |
623 | { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */ | |
624 | { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */ | |
aa431dd3 TH |
625 | { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_yesncq }, /* MCP67 */ |
626 | { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_yesncq }, /* MCP67 */ | |
627 | { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_yesncq }, /* MCP67 */ | |
628 | { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_yesncq }, /* MCP67 */ | |
629 | { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_yesncq }, /* MCP67 */ | |
630 | { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_yesncq }, /* MCP67 */ | |
631 | { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_yesncq }, /* MCP67 */ | |
632 | { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_yesncq }, /* MCP67 */ | |
633 | { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_yesncq }, /* MCP67 */ | |
634 | { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_yesncq }, /* MCP67 */ | |
635 | { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_yesncq }, /* MCP67 */ | |
636 | { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_yesncq }, /* MCP67 */ | |
726206f8 | 637 | { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_yesncq }, /* Linux ID */ |
aa431dd3 TH |
638 | { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_yesncq }, /* MCP73 */ |
639 | { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_yesncq }, /* MCP73 */ | |
640 | { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_yesncq }, /* MCP73 */ | |
641 | { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_yesncq }, /* MCP73 */ | |
642 | { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_yesncq }, /* MCP73 */ | |
643 | { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_yesncq }, /* MCP73 */ | |
644 | { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_yesncq }, /* MCP73 */ | |
645 | { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_yesncq }, /* MCP73 */ | |
646 | { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_yesncq }, /* MCP73 */ | |
647 | { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_yesncq }, /* MCP73 */ | |
648 | { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_yesncq }, /* MCP73 */ | |
649 | { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_yesncq }, /* MCP73 */ | |
0522b286 PC |
650 | { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci }, /* MCP77 */ |
651 | { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci }, /* MCP77 */ | |
652 | { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci }, /* MCP77 */ | |
653 | { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci }, /* MCP77 */ | |
654 | { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci }, /* MCP77 */ | |
655 | { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci }, /* MCP77 */ | |
656 | { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci }, /* MCP77 */ | |
657 | { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci }, /* MCP77 */ | |
658 | { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci }, /* MCP77 */ | |
659 | { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci }, /* MCP77 */ | |
660 | { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci }, /* MCP77 */ | |
661 | { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci }, /* MCP77 */ | |
6ba86958 | 662 | { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci }, /* MCP79 */ |
663 | { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci }, /* MCP79 */ | |
664 | { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci }, /* MCP79 */ | |
665 | { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci }, /* MCP79 */ | |
7100819f PC |
666 | { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci }, /* MCP79 */ |
667 | { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci }, /* MCP79 */ | |
668 | { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci }, /* MCP79 */ | |
669 | { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci }, /* MCP79 */ | |
670 | { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci }, /* MCP79 */ | |
671 | { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci }, /* MCP79 */ | |
672 | { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci }, /* MCP79 */ | |
673 | { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci }, /* MCP79 */ | |
7adbe46b | 674 | { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci }, /* MCP89 */ |
675 | { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci }, /* MCP89 */ | |
676 | { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci }, /* MCP89 */ | |
677 | { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci }, /* MCP89 */ | |
678 | { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci }, /* MCP89 */ | |
679 | { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci }, /* MCP89 */ | |
680 | { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci }, /* MCP89 */ | |
681 | { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci }, /* MCP89 */ | |
682 | { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci }, /* MCP89 */ | |
683 | { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci }, /* MCP89 */ | |
684 | { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci }, /* MCP89 */ | |
685 | { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci }, /* MCP89 */ | |
fe7fa31a | 686 | |
95916edd | 687 | /* SiS */ |
20e2de4a TH |
688 | { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ |
689 | { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */ | |
690 | { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */ | |
95916edd | 691 | |
cd70c266 JG |
692 | /* Marvell */ |
693 | { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */ | |
c40e7cb8 | 694 | { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */ |
cd70c266 | 695 | |
c77a036b MN |
696 | /* Promise */ |
697 | { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */ | |
698 | ||
415ae2b5 JG |
699 | /* Generic, PCI class code for AHCI */ |
700 | { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, | |
c9f89475 | 701 | PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, |
415ae2b5 | 702 | |
1da177e4 LT |
703 | { } /* terminate list */ |
704 | }; | |
705 | ||
706 | ||
707 | static struct pci_driver ahci_pci_driver = { | |
708 | .name = DRV_NAME, | |
709 | .id_table = ahci_pci_tbl, | |
710 | .probe = ahci_init_one, | |
24dc5f33 | 711 | .remove = ata_pci_remove_one, |
438ac6d5 | 712 | #ifdef CONFIG_PM |
c1332875 TH |
713 | .suspend = ahci_pci_device_suspend, |
714 | .resume = ahci_pci_device_resume, | |
438ac6d5 | 715 | #endif |
1da177e4 LT |
716 | }; |
717 | ||
18f7ba4c KCA |
718 | static int ahci_em_messages = 1; |
719 | module_param(ahci_em_messages, int, 0444); | |
720 | /* add other LED protocol types when they become supported */ | |
721 | MODULE_PARM_DESC(ahci_em_messages, | |
722 | "Set AHCI Enclosure Management Message type (0 = disabled, 1 = LED"); | |
1da177e4 | 723 | |
5b66c829 AC |
724 | #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE) |
725 | static int marvell_enable; | |
726 | #else | |
727 | static int marvell_enable = 1; | |
728 | #endif | |
729 | module_param(marvell_enable, int, 0644); | |
730 | MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)"); | |
731 | ||
732 | ||
98fa4b60 TH |
733 | static inline int ahci_nr_ports(u32 cap) |
734 | { | |
735 | return (cap & 0x1f) + 1; | |
736 | } | |
737 | ||
dab632e8 JG |
738 | static inline void __iomem *__ahci_port_base(struct ata_host *host, |
739 | unsigned int port_no) | |
1da177e4 | 740 | { |
dab632e8 | 741 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; |
4447d351 | 742 | |
dab632e8 JG |
743 | return mmio + 0x100 + (port_no * 0x80); |
744 | } | |
745 | ||
746 | static inline void __iomem *ahci_port_base(struct ata_port *ap) | |
747 | { | |
748 | return __ahci_port_base(ap->host, ap->port_no); | |
1da177e4 LT |
749 | } |
750 | ||
b710a1f4 TH |
751 | static void ahci_enable_ahci(void __iomem *mmio) |
752 | { | |
15fe982e | 753 | int i; |
b710a1f4 TH |
754 | u32 tmp; |
755 | ||
756 | /* turn on AHCI_EN */ | |
757 | tmp = readl(mmio + HOST_CTL); | |
15fe982e TH |
758 | if (tmp & HOST_AHCI_EN) |
759 | return; | |
760 | ||
761 | /* Some controllers need AHCI_EN to be written multiple times. | |
762 | * Try a few times before giving up. | |
763 | */ | |
764 | for (i = 0; i < 5; i++) { | |
b710a1f4 TH |
765 | tmp |= HOST_AHCI_EN; |
766 | writel(tmp, mmio + HOST_CTL); | |
767 | tmp = readl(mmio + HOST_CTL); /* flush && sanity check */ | |
15fe982e TH |
768 | if (tmp & HOST_AHCI_EN) |
769 | return; | |
770 | msleep(10); | |
b710a1f4 | 771 | } |
15fe982e TH |
772 | |
773 | WARN_ON(1); | |
b710a1f4 TH |
774 | } |
775 | ||
77cdec1a MG |
776 | static ssize_t ahci_show_host_caps(struct device *dev, |
777 | struct device_attribute *attr, char *buf) | |
778 | { | |
779 | struct Scsi_Host *shost = class_to_shost(dev); | |
780 | struct ata_port *ap = ata_shost_to_port(shost); | |
781 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
782 | ||
783 | return sprintf(buf, "%x\n", hpriv->cap); | |
784 | } | |
785 | ||
4c521c8e RH |
786 | static ssize_t ahci_show_host_cap2(struct device *dev, |
787 | struct device_attribute *attr, char *buf) | |
788 | { | |
789 | struct Scsi_Host *shost = class_to_shost(dev); | |
790 | struct ata_port *ap = ata_shost_to_port(shost); | |
791 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
792 | ||
793 | return sprintf(buf, "%x\n", hpriv->cap2); | |
794 | } | |
795 | ||
77cdec1a MG |
796 | static ssize_t ahci_show_host_version(struct device *dev, |
797 | struct device_attribute *attr, char *buf) | |
798 | { | |
799 | struct Scsi_Host *shost = class_to_shost(dev); | |
800 | struct ata_port *ap = ata_shost_to_port(shost); | |
801 | void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; | |
802 | ||
803 | return sprintf(buf, "%x\n", readl(mmio + HOST_VERSION)); | |
804 | } | |
805 | ||
806 | static ssize_t ahci_show_port_cmd(struct device *dev, | |
807 | struct device_attribute *attr, char *buf) | |
808 | { | |
809 | struct Scsi_Host *shost = class_to_shost(dev); | |
810 | struct ata_port *ap = ata_shost_to_port(shost); | |
811 | void __iomem *port_mmio = ahci_port_base(ap); | |
812 | ||
813 | return sprintf(buf, "%x\n", readl(port_mmio + PORT_CMD)); | |
814 | } | |
815 | ||
d447df14 TH |
816 | /** |
817 | * ahci_save_initial_config - Save and fixup initial config values | |
4447d351 | 818 | * @pdev: target PCI device |
4447d351 | 819 | * @hpriv: host private area to store config values |
d447df14 TH |
820 | * |
821 | * Some registers containing configuration info might be setup by | |
822 | * BIOS and might be cleared on reset. This function saves the | |
823 | * initial values of those registers into @hpriv such that they | |
824 | * can be restored after controller reset. | |
825 | * | |
826 | * If inconsistent, config values are fixed up by this function. | |
827 | * | |
828 | * LOCKING: | |
829 | * None. | |
830 | */ | |
4447d351 | 831 | static void ahci_save_initial_config(struct pci_dev *pdev, |
4447d351 | 832 | struct ahci_host_priv *hpriv) |
d447df14 | 833 | { |
4447d351 | 834 | void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; |
4c521c8e | 835 | u32 cap, cap2, vers, port_map; |
17199b18 | 836 | int i; |
c40e7cb8 | 837 | int mv; |
d447df14 | 838 | |
b710a1f4 TH |
839 | /* make sure AHCI mode is enabled before accessing CAP */ |
840 | ahci_enable_ahci(mmio); | |
841 | ||
d447df14 TH |
842 | /* Values prefixed with saved_ are written back to host after |
843 | * reset. Values without are used for driver operation. | |
844 | */ | |
845 | hpriv->saved_cap = cap = readl(mmio + HOST_CAP); | |
846 | hpriv->saved_port_map = port_map = readl(mmio + HOST_PORTS_IMPL); | |
847 | ||
4c521c8e RH |
848 | /* CAP2 register is only defined for AHCI 1.2 and later */ |
849 | vers = readl(mmio + HOST_VERSION); | |
850 | if ((vers >> 16) > 1 || | |
851 | ((vers >> 16) == 1 && (vers & 0xFFFF) >= 0x200)) | |
852 | hpriv->saved_cap2 = cap2 = readl(mmio + HOST_CAP2); | |
853 | else | |
854 | hpriv->saved_cap2 = cap2 = 0; | |
855 | ||
274c1fde | 856 | /* some chips have errata preventing 64bit use */ |
417a1a6d | 857 | if ((cap & HOST_CAP_64) && (hpriv->flags & AHCI_HFLAG_32BIT_ONLY)) { |
c7a42156 TH |
858 | dev_printk(KERN_INFO, &pdev->dev, |
859 | "controller can't do 64bit DMA, forcing 32bit\n"); | |
860 | cap &= ~HOST_CAP_64; | |
861 | } | |
862 | ||
417a1a6d | 863 | if ((cap & HOST_CAP_NCQ) && (hpriv->flags & AHCI_HFLAG_NO_NCQ)) { |
274c1fde TH |
864 | dev_printk(KERN_INFO, &pdev->dev, |
865 | "controller can't do NCQ, turning off CAP_NCQ\n"); | |
866 | cap &= ~HOST_CAP_NCQ; | |
867 | } | |
868 | ||
e297d99e TH |
869 | if (!(cap & HOST_CAP_NCQ) && (hpriv->flags & AHCI_HFLAG_YES_NCQ)) { |
870 | dev_printk(KERN_INFO, &pdev->dev, | |
871 | "controller can do NCQ, turning on CAP_NCQ\n"); | |
872 | cap |= HOST_CAP_NCQ; | |
873 | } | |
874 | ||
258cd846 | 875 | if ((cap & HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) { |
6949b914 TH |
876 | dev_printk(KERN_INFO, &pdev->dev, |
877 | "controller can't do PMP, turning off CAP_PMP\n"); | |
878 | cap &= ~HOST_CAP_PMP; | |
879 | } | |
880 | ||
1b677afd SL |
881 | if ((cap & HOST_CAP_SNTF) && (hpriv->flags & AHCI_HFLAG_NO_SNTF)) { |
882 | dev_printk(KERN_INFO, &pdev->dev, | |
883 | "controller can't do SNTF, turning off CAP_SNTF\n"); | |
884 | cap &= ~HOST_CAP_SNTF; | |
885 | } | |
886 | ||
d799e083 TH |
887 | if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361 && |
888 | port_map != 1) { | |
889 | dev_printk(KERN_INFO, &pdev->dev, | |
890 | "JMB361 has only one port, port_map 0x%x -> 0x%x\n", | |
891 | port_map, 1); | |
892 | port_map = 1; | |
893 | } | |
894 | ||
cd70c266 JG |
895 | /* |
896 | * Temporary Marvell 6145 hack: PATA port presence | |
897 | * is asserted through the standard AHCI port | |
898 | * presence register, as bit 4 (counting from 0) | |
899 | */ | |
417a1a6d | 900 | if (hpriv->flags & AHCI_HFLAG_MV_PATA) { |
c40e7cb8 JAR |
901 | if (pdev->device == 0x6121) |
902 | mv = 0x3; | |
903 | else | |
904 | mv = 0xf; | |
cd70c266 JG |
905 | dev_printk(KERN_ERR, &pdev->dev, |
906 | "MV_AHCI HACK: port_map %x -> %x\n", | |
c40e7cb8 JAR |
907 | port_map, |
908 | port_map & mv); | |
5b66c829 AC |
909 | dev_printk(KERN_ERR, &pdev->dev, |
910 | "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n"); | |
cd70c266 | 911 | |
c40e7cb8 | 912 | port_map &= mv; |
cd70c266 JG |
913 | } |
914 | ||
17199b18 | 915 | /* cross check port_map and cap.n_ports */ |
7a234aff | 916 | if (port_map) { |
837f5f8f | 917 | int map_ports = 0; |
17199b18 | 918 | |
837f5f8f TH |
919 | for (i = 0; i < AHCI_MAX_PORTS; i++) |
920 | if (port_map & (1 << i)) | |
921 | map_ports++; | |
17199b18 | 922 | |
837f5f8f TH |
923 | /* If PI has more ports than n_ports, whine, clear |
924 | * port_map and let it be generated from n_ports. | |
17199b18 | 925 | */ |
837f5f8f | 926 | if (map_ports > ahci_nr_ports(cap)) { |
4447d351 | 927 | dev_printk(KERN_WARNING, &pdev->dev, |
837f5f8f TH |
928 | "implemented port map (0x%x) contains more " |
929 | "ports than nr_ports (%u), using nr_ports\n", | |
930 | port_map, ahci_nr_ports(cap)); | |
7a234aff TH |
931 | port_map = 0; |
932 | } | |
933 | } | |
934 | ||
935 | /* fabricate port_map from cap.nr_ports */ | |
936 | if (!port_map) { | |
17199b18 | 937 | port_map = (1 << ahci_nr_ports(cap)) - 1; |
7a234aff TH |
938 | dev_printk(KERN_WARNING, &pdev->dev, |
939 | "forcing PORTS_IMPL to 0x%x\n", port_map); | |
940 | ||
941 | /* write the fixed up value to the PI register */ | |
942 | hpriv->saved_port_map = port_map; | |
17199b18 TH |
943 | } |
944 | ||
d447df14 TH |
945 | /* record values to use during operation */ |
946 | hpriv->cap = cap; | |
4c521c8e | 947 | hpriv->cap2 = cap2; |
d447df14 TH |
948 | hpriv->port_map = port_map; |
949 | } | |
950 | ||
951 | /** | |
952 | * ahci_restore_initial_config - Restore initial config | |
4447d351 | 953 | * @host: target ATA host |
d447df14 TH |
954 | * |
955 | * Restore initial config stored by ahci_save_initial_config(). | |
956 | * | |
957 | * LOCKING: | |
958 | * None. | |
959 | */ | |
4447d351 | 960 | static void ahci_restore_initial_config(struct ata_host *host) |
d447df14 | 961 | { |
4447d351 TH |
962 | struct ahci_host_priv *hpriv = host->private_data; |
963 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; | |
964 | ||
d447df14 | 965 | writel(hpriv->saved_cap, mmio + HOST_CAP); |
4c521c8e RH |
966 | if (hpriv->saved_cap2) |
967 | writel(hpriv->saved_cap2, mmio + HOST_CAP2); | |
d447df14 TH |
968 | writel(hpriv->saved_port_map, mmio + HOST_PORTS_IMPL); |
969 | (void) readl(mmio + HOST_PORTS_IMPL); /* flush */ | |
970 | } | |
971 | ||
203ef6c4 | 972 | static unsigned ahci_scr_offset(struct ata_port *ap, unsigned int sc_reg) |
1da177e4 | 973 | { |
203ef6c4 TH |
974 | static const int offset[] = { |
975 | [SCR_STATUS] = PORT_SCR_STAT, | |
976 | [SCR_CONTROL] = PORT_SCR_CTL, | |
977 | [SCR_ERROR] = PORT_SCR_ERR, | |
978 | [SCR_ACTIVE] = PORT_SCR_ACT, | |
979 | [SCR_NOTIFICATION] = PORT_SCR_NTF, | |
980 | }; | |
981 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
1da177e4 | 982 | |
203ef6c4 TH |
983 | if (sc_reg < ARRAY_SIZE(offset) && |
984 | (sc_reg != SCR_NOTIFICATION || (hpriv->cap & HOST_CAP_SNTF))) | |
985 | return offset[sc_reg]; | |
da3dbb17 | 986 | return 0; |
1da177e4 LT |
987 | } |
988 | ||
82ef04fb | 989 | static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) |
1da177e4 | 990 | { |
82ef04fb TH |
991 | void __iomem *port_mmio = ahci_port_base(link->ap); |
992 | int offset = ahci_scr_offset(link->ap, sc_reg); | |
203ef6c4 TH |
993 | |
994 | if (offset) { | |
995 | *val = readl(port_mmio + offset); | |
996 | return 0; | |
1da177e4 | 997 | } |
203ef6c4 TH |
998 | return -EINVAL; |
999 | } | |
1da177e4 | 1000 | |
82ef04fb | 1001 | static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) |
203ef6c4 | 1002 | { |
82ef04fb TH |
1003 | void __iomem *port_mmio = ahci_port_base(link->ap); |
1004 | int offset = ahci_scr_offset(link->ap, sc_reg); | |
203ef6c4 TH |
1005 | |
1006 | if (offset) { | |
1007 | writel(val, port_mmio + offset); | |
1008 | return 0; | |
1009 | } | |
1010 | return -EINVAL; | |
1da177e4 LT |
1011 | } |
1012 | ||
4447d351 | 1013 | static void ahci_start_engine(struct ata_port *ap) |
7c76d1e8 | 1014 | { |
4447d351 | 1015 | void __iomem *port_mmio = ahci_port_base(ap); |
7c76d1e8 TH |
1016 | u32 tmp; |
1017 | ||
d8fcd116 | 1018 | /* start DMA */ |
9f592056 | 1019 | tmp = readl(port_mmio + PORT_CMD); |
7c76d1e8 TH |
1020 | tmp |= PORT_CMD_START; |
1021 | writel(tmp, port_mmio + PORT_CMD); | |
1022 | readl(port_mmio + PORT_CMD); /* flush */ | |
1023 | } | |
1024 | ||
4447d351 | 1025 | static int ahci_stop_engine(struct ata_port *ap) |
254950cd | 1026 | { |
4447d351 | 1027 | void __iomem *port_mmio = ahci_port_base(ap); |
254950cd TH |
1028 | u32 tmp; |
1029 | ||
1030 | tmp = readl(port_mmio + PORT_CMD); | |
1031 | ||
d8fcd116 | 1032 | /* check if the HBA is idle */ |
254950cd TH |
1033 | if ((tmp & (PORT_CMD_START | PORT_CMD_LIST_ON)) == 0) |
1034 | return 0; | |
1035 | ||
d8fcd116 | 1036 | /* setting HBA to idle */ |
254950cd TH |
1037 | tmp &= ~PORT_CMD_START; |
1038 | writel(tmp, port_mmio + PORT_CMD); | |
1039 | ||
d8fcd116 | 1040 | /* wait for engine to stop. This could be as long as 500 msec */ |
254950cd | 1041 | tmp = ata_wait_register(port_mmio + PORT_CMD, |
2dcb407e | 1042 | PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500); |
d8fcd116 | 1043 | if (tmp & PORT_CMD_LIST_ON) |
254950cd TH |
1044 | return -EIO; |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
4447d351 | 1049 | static void ahci_start_fis_rx(struct ata_port *ap) |
0be0aa98 | 1050 | { |
4447d351 TH |
1051 | void __iomem *port_mmio = ahci_port_base(ap); |
1052 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
1053 | struct ahci_port_priv *pp = ap->private_data; | |
0be0aa98 TH |
1054 | u32 tmp; |
1055 | ||
1056 | /* set FIS registers */ | |
4447d351 TH |
1057 | if (hpriv->cap & HOST_CAP_64) |
1058 | writel((pp->cmd_slot_dma >> 16) >> 16, | |
1059 | port_mmio + PORT_LST_ADDR_HI); | |
1060 | writel(pp->cmd_slot_dma & 0xffffffff, port_mmio + PORT_LST_ADDR); | |
0be0aa98 | 1061 | |
4447d351 TH |
1062 | if (hpriv->cap & HOST_CAP_64) |
1063 | writel((pp->rx_fis_dma >> 16) >> 16, | |
1064 | port_mmio + PORT_FIS_ADDR_HI); | |
1065 | writel(pp->rx_fis_dma & 0xffffffff, port_mmio + PORT_FIS_ADDR); | |
0be0aa98 TH |
1066 | |
1067 | /* enable FIS reception */ | |
1068 | tmp = readl(port_mmio + PORT_CMD); | |
1069 | tmp |= PORT_CMD_FIS_RX; | |
1070 | writel(tmp, port_mmio + PORT_CMD); | |
1071 | ||
1072 | /* flush */ | |
1073 | readl(port_mmio + PORT_CMD); | |
1074 | } | |
1075 | ||
4447d351 | 1076 | static int ahci_stop_fis_rx(struct ata_port *ap) |
0be0aa98 | 1077 | { |
4447d351 | 1078 | void __iomem *port_mmio = ahci_port_base(ap); |
0be0aa98 TH |
1079 | u32 tmp; |
1080 | ||
1081 | /* disable FIS reception */ | |
1082 | tmp = readl(port_mmio + PORT_CMD); | |
1083 | tmp &= ~PORT_CMD_FIS_RX; | |
1084 | writel(tmp, port_mmio + PORT_CMD); | |
1085 | ||
1086 | /* wait for completion, spec says 500ms, give it 1000 */ | |
1087 | tmp = ata_wait_register(port_mmio + PORT_CMD, PORT_CMD_FIS_ON, | |
1088 | PORT_CMD_FIS_ON, 10, 1000); | |
1089 | if (tmp & PORT_CMD_FIS_ON) | |
1090 | return -EBUSY; | |
1091 | ||
1092 | return 0; | |
1093 | } | |
1094 | ||
4447d351 | 1095 | static void ahci_power_up(struct ata_port *ap) |
0be0aa98 | 1096 | { |
4447d351 TH |
1097 | struct ahci_host_priv *hpriv = ap->host->private_data; |
1098 | void __iomem *port_mmio = ahci_port_base(ap); | |
0be0aa98 TH |
1099 | u32 cmd; |
1100 | ||
1101 | cmd = readl(port_mmio + PORT_CMD) & ~PORT_CMD_ICC_MASK; | |
1102 | ||
1103 | /* spin up device */ | |
4447d351 | 1104 | if (hpriv->cap & HOST_CAP_SSS) { |
0be0aa98 TH |
1105 | cmd |= PORT_CMD_SPIN_UP; |
1106 | writel(cmd, port_mmio + PORT_CMD); | |
1107 | } | |
1108 | ||
1109 | /* wake up link */ | |
1110 | writel(cmd | PORT_CMD_ICC_ACTIVE, port_mmio + PORT_CMD); | |
1111 | } | |
1112 | ||
31556594 KCA |
1113 | static void ahci_disable_alpm(struct ata_port *ap) |
1114 | { | |
1115 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
1116 | void __iomem *port_mmio = ahci_port_base(ap); | |
1117 | u32 cmd; | |
1118 | struct ahci_port_priv *pp = ap->private_data; | |
1119 | ||
1120 | /* IPM bits should be disabled by libata-core */ | |
1121 | /* get the existing command bits */ | |
1122 | cmd = readl(port_mmio + PORT_CMD); | |
1123 | ||
1124 | /* disable ALPM and ASP */ | |
1125 | cmd &= ~PORT_CMD_ASP; | |
1126 | cmd &= ~PORT_CMD_ALPE; | |
1127 | ||
1128 | /* force the interface back to active */ | |
1129 | cmd |= PORT_CMD_ICC_ACTIVE; | |
1130 | ||
1131 | /* write out new cmd value */ | |
1132 | writel(cmd, port_mmio + PORT_CMD); | |
1133 | cmd = readl(port_mmio + PORT_CMD); | |
1134 | ||
1135 | /* wait 10ms to be sure we've come out of any low power state */ | |
1136 | msleep(10); | |
1137 | ||
1138 | /* clear out any PhyRdy stuff from interrupt status */ | |
1139 | writel(PORT_IRQ_PHYRDY, port_mmio + PORT_IRQ_STAT); | |
1140 | ||
1141 | /* go ahead and clean out PhyRdy Change from Serror too */ | |
82ef04fb | 1142 | ahci_scr_write(&ap->link, SCR_ERROR, ((1 << 16) | (1 << 18))); |
31556594 KCA |
1143 | |
1144 | /* | |
1145 | * Clear flag to indicate that we should ignore all PhyRdy | |
1146 | * state changes | |
1147 | */ | |
1148 | hpriv->flags &= ~AHCI_HFLAG_NO_HOTPLUG; | |
1149 | ||
1150 | /* | |
1151 | * Enable interrupts on Phy Ready. | |
1152 | */ | |
1153 | pp->intr_mask |= PORT_IRQ_PHYRDY; | |
1154 | writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); | |
1155 | ||
1156 | /* | |
1157 | * don't change the link pm policy - we can be called | |
1158 | * just to turn of link pm temporarily | |
1159 | */ | |
1160 | } | |
1161 | ||
1162 | static int ahci_enable_alpm(struct ata_port *ap, | |
1163 | enum link_pm policy) | |
1164 | { | |
1165 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
1166 | void __iomem *port_mmio = ahci_port_base(ap); | |
1167 | u32 cmd; | |
1168 | struct ahci_port_priv *pp = ap->private_data; | |
1169 | u32 asp; | |
1170 | ||
1171 | /* Make sure the host is capable of link power management */ | |
1172 | if (!(hpriv->cap & HOST_CAP_ALPM)) | |
1173 | return -EINVAL; | |
1174 | ||
1175 | switch (policy) { | |
1176 | case MAX_PERFORMANCE: | |
1177 | case NOT_AVAILABLE: | |
1178 | /* | |
1179 | * if we came here with NOT_AVAILABLE, | |
1180 | * it just means this is the first time we | |
1181 | * have tried to enable - default to max performance, | |
1182 | * and let the user go to lower power modes on request. | |
1183 | */ | |
1184 | ahci_disable_alpm(ap); | |
1185 | return 0; | |
1186 | case MIN_POWER: | |
1187 | /* configure HBA to enter SLUMBER */ | |
1188 | asp = PORT_CMD_ASP; | |
1189 | break; | |
1190 | case MEDIUM_POWER: | |
1191 | /* configure HBA to enter PARTIAL */ | |
1192 | asp = 0; | |
1193 | break; | |
1194 | default: | |
1195 | return -EINVAL; | |
1196 | } | |
1197 | ||
1198 | /* | |
1199 | * Disable interrupts on Phy Ready. This keeps us from | |
1200 | * getting woken up due to spurious phy ready interrupts | |
1201 | * TBD - Hot plug should be done via polling now, is | |
1202 | * that even supported? | |
1203 | */ | |
1204 | pp->intr_mask &= ~PORT_IRQ_PHYRDY; | |
1205 | writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); | |
1206 | ||
1207 | /* | |
1208 | * Set a flag to indicate that we should ignore all PhyRdy | |
1209 | * state changes since these can happen now whenever we | |
1210 | * change link state | |
1211 | */ | |
1212 | hpriv->flags |= AHCI_HFLAG_NO_HOTPLUG; | |
1213 | ||
1214 | /* get the existing command bits */ | |
1215 | cmd = readl(port_mmio + PORT_CMD); | |
1216 | ||
1217 | /* | |
1218 | * Set ASP based on Policy | |
1219 | */ | |
1220 | cmd |= asp; | |
1221 | ||
1222 | /* | |
1223 | * Setting this bit will instruct the HBA to aggressively | |
1224 | * enter a lower power link state when it's appropriate and | |
1225 | * based on the value set above for ASP | |
1226 | */ | |
1227 | cmd |= PORT_CMD_ALPE; | |
1228 | ||
1229 | /* write out new cmd value */ | |
1230 | writel(cmd, port_mmio + PORT_CMD); | |
1231 | cmd = readl(port_mmio + PORT_CMD); | |
1232 | ||
1233 | /* IPM bits should be set by libata-core */ | |
1234 | return 0; | |
1235 | } | |
1236 | ||
438ac6d5 | 1237 | #ifdef CONFIG_PM |
4447d351 | 1238 | static void ahci_power_down(struct ata_port *ap) |
0be0aa98 | 1239 | { |
4447d351 TH |
1240 | struct ahci_host_priv *hpriv = ap->host->private_data; |
1241 | void __iomem *port_mmio = ahci_port_base(ap); | |
0be0aa98 TH |
1242 | u32 cmd, scontrol; |
1243 | ||
4447d351 | 1244 | if (!(hpriv->cap & HOST_CAP_SSS)) |
07c53dac | 1245 | return; |
0be0aa98 | 1246 | |
07c53dac TH |
1247 | /* put device into listen mode, first set PxSCTL.DET to 0 */ |
1248 | scontrol = readl(port_mmio + PORT_SCR_CTL); | |
1249 | scontrol &= ~0xf; | |
1250 | writel(scontrol, port_mmio + PORT_SCR_CTL); | |
0be0aa98 | 1251 | |
07c53dac TH |
1252 | /* then set PxCMD.SUD to 0 */ |
1253 | cmd = readl(port_mmio + PORT_CMD) & ~PORT_CMD_ICC_MASK; | |
1254 | cmd &= ~PORT_CMD_SPIN_UP; | |
1255 | writel(cmd, port_mmio + PORT_CMD); | |
0be0aa98 | 1256 | } |
438ac6d5 | 1257 | #endif |
0be0aa98 | 1258 | |
df69c9c5 | 1259 | static void ahci_start_port(struct ata_port *ap) |
0be0aa98 | 1260 | { |
18f7ba4c KCA |
1261 | struct ahci_port_priv *pp = ap->private_data; |
1262 | struct ata_link *link; | |
1263 | struct ahci_em_priv *emp; | |
4c1e9aa4 DM |
1264 | ssize_t rc; |
1265 | int i; | |
18f7ba4c | 1266 | |
0be0aa98 | 1267 | /* enable FIS reception */ |
4447d351 | 1268 | ahci_start_fis_rx(ap); |
0be0aa98 TH |
1269 | |
1270 | /* enable DMA */ | |
4447d351 | 1271 | ahci_start_engine(ap); |
18f7ba4c KCA |
1272 | |
1273 | /* turn on LEDs */ | |
1274 | if (ap->flags & ATA_FLAG_EM) { | |
1eca4365 | 1275 | ata_for_each_link(link, ap, EDGE) { |
18f7ba4c | 1276 | emp = &pp->em_priv[link->pmp]; |
4c1e9aa4 DM |
1277 | |
1278 | /* EM Transmit bit maybe busy during init */ | |
d50ce07d | 1279 | for (i = 0; i < EM_MAX_RETRY; i++) { |
4c1e9aa4 DM |
1280 | rc = ahci_transmit_led_message(ap, |
1281 | emp->led_state, | |
1282 | 4); | |
1283 | if (rc == -EBUSY) | |
d50ce07d | 1284 | msleep(1); |
4c1e9aa4 DM |
1285 | else |
1286 | break; | |
1287 | } | |
18f7ba4c KCA |
1288 | } |
1289 | } | |
1290 | ||
1291 | if (ap->flags & ATA_FLAG_SW_ACTIVITY) | |
1eca4365 | 1292 | ata_for_each_link(link, ap, EDGE) |
18f7ba4c KCA |
1293 | ahci_init_sw_activity(link); |
1294 | ||
0be0aa98 TH |
1295 | } |
1296 | ||
4447d351 | 1297 | static int ahci_deinit_port(struct ata_port *ap, const char **emsg) |
0be0aa98 TH |
1298 | { |
1299 | int rc; | |
1300 | ||
1301 | /* disable DMA */ | |
4447d351 | 1302 | rc = ahci_stop_engine(ap); |
0be0aa98 TH |
1303 | if (rc) { |
1304 | *emsg = "failed to stop engine"; | |
1305 | return rc; | |
1306 | } | |
1307 | ||
1308 | /* disable FIS reception */ | |
4447d351 | 1309 | rc = ahci_stop_fis_rx(ap); |
0be0aa98 TH |
1310 | if (rc) { |
1311 | *emsg = "failed stop FIS RX"; | |
1312 | return rc; | |
1313 | } | |
1314 | ||
0be0aa98 TH |
1315 | return 0; |
1316 | } | |
1317 | ||
4447d351 | 1318 | static int ahci_reset_controller(struct ata_host *host) |
d91542c1 | 1319 | { |
4447d351 | 1320 | struct pci_dev *pdev = to_pci_dev(host->dev); |
49f29090 | 1321 | struct ahci_host_priv *hpriv = host->private_data; |
4447d351 | 1322 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; |
d447df14 | 1323 | u32 tmp; |
d91542c1 | 1324 | |
3cc3eb11 JG |
1325 | /* we must be in AHCI mode, before using anything |
1326 | * AHCI-specific, such as HOST_RESET. | |
1327 | */ | |
b710a1f4 | 1328 | ahci_enable_ahci(mmio); |
3cc3eb11 JG |
1329 | |
1330 | /* global controller reset */ | |
a22e6444 TH |
1331 | if (!ahci_skip_host_reset) { |
1332 | tmp = readl(mmio + HOST_CTL); | |
1333 | if ((tmp & HOST_RESET) == 0) { | |
1334 | writel(tmp | HOST_RESET, mmio + HOST_CTL); | |
1335 | readl(mmio + HOST_CTL); /* flush */ | |
1336 | } | |
d91542c1 | 1337 | |
24920c8a ZR |
1338 | /* |
1339 | * to perform host reset, OS should set HOST_RESET | |
1340 | * and poll until this bit is read to be "0". | |
1341 | * reset must complete within 1 second, or | |
a22e6444 TH |
1342 | * the hardware should be considered fried. |
1343 | */ | |
24920c8a ZR |
1344 | tmp = ata_wait_register(mmio + HOST_CTL, HOST_RESET, |
1345 | HOST_RESET, 10, 1000); | |
d91542c1 | 1346 | |
a22e6444 TH |
1347 | if (tmp & HOST_RESET) { |
1348 | dev_printk(KERN_ERR, host->dev, | |
1349 | "controller reset failed (0x%x)\n", tmp); | |
1350 | return -EIO; | |
1351 | } | |
d91542c1 | 1352 | |
a22e6444 TH |
1353 | /* turn on AHCI mode */ |
1354 | ahci_enable_ahci(mmio); | |
98fa4b60 | 1355 | |
a22e6444 TH |
1356 | /* Some registers might be cleared on reset. Restore |
1357 | * initial values. | |
1358 | */ | |
1359 | ahci_restore_initial_config(host); | |
1360 | } else | |
1361 | dev_printk(KERN_INFO, host->dev, | |
1362 | "skipping global host reset\n"); | |
d91542c1 TH |
1363 | |
1364 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
1365 | u16 tmp16; | |
1366 | ||
1367 | /* configure PCS */ | |
1368 | pci_read_config_word(pdev, 0x92, &tmp16); | |
49f29090 TH |
1369 | if ((tmp16 & hpriv->port_map) != hpriv->port_map) { |
1370 | tmp16 |= hpriv->port_map; | |
1371 | pci_write_config_word(pdev, 0x92, tmp16); | |
1372 | } | |
d91542c1 TH |
1373 | } |
1374 | ||
1375 | return 0; | |
1376 | } | |
1377 | ||
18f7ba4c KCA |
1378 | static void ahci_sw_activity(struct ata_link *link) |
1379 | { | |
1380 | struct ata_port *ap = link->ap; | |
1381 | struct ahci_port_priv *pp = ap->private_data; | |
1382 | struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; | |
1383 | ||
1384 | if (!(link->flags & ATA_LFLAG_SW_ACTIVITY)) | |
1385 | return; | |
1386 | ||
1387 | emp->activity++; | |
1388 | if (!timer_pending(&emp->timer)) | |
1389 | mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10)); | |
1390 | } | |
1391 | ||
1392 | static void ahci_sw_activity_blink(unsigned long arg) | |
1393 | { | |
1394 | struct ata_link *link = (struct ata_link *)arg; | |
1395 | struct ata_port *ap = link->ap; | |
1396 | struct ahci_port_priv *pp = ap->private_data; | |
1397 | struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; | |
1398 | unsigned long led_message = emp->led_state; | |
1399 | u32 activity_led_state; | |
eb40963c | 1400 | unsigned long flags; |
18f7ba4c | 1401 | |
87943acf | 1402 | led_message &= EM_MSG_LED_VALUE; |
18f7ba4c KCA |
1403 | led_message |= ap->port_no | (link->pmp << 8); |
1404 | ||
1405 | /* check to see if we've had activity. If so, | |
1406 | * toggle state of LED and reset timer. If not, | |
1407 | * turn LED to desired idle state. | |
1408 | */ | |
eb40963c | 1409 | spin_lock_irqsave(ap->lock, flags); |
18f7ba4c KCA |
1410 | if (emp->saved_activity != emp->activity) { |
1411 | emp->saved_activity = emp->activity; | |
1412 | /* get the current LED state */ | |
87943acf | 1413 | activity_led_state = led_message & EM_MSG_LED_VALUE_ON; |
18f7ba4c KCA |
1414 | |
1415 | if (activity_led_state) | |
1416 | activity_led_state = 0; | |
1417 | else | |
1418 | activity_led_state = 1; | |
1419 | ||
1420 | /* clear old state */ | |
87943acf | 1421 | led_message &= ~EM_MSG_LED_VALUE_ACTIVITY; |
18f7ba4c KCA |
1422 | |
1423 | /* toggle state */ | |
1424 | led_message |= (activity_led_state << 16); | |
1425 | mod_timer(&emp->timer, jiffies + msecs_to_jiffies(100)); | |
1426 | } else { | |
1427 | /* switch to idle */ | |
87943acf | 1428 | led_message &= ~EM_MSG_LED_VALUE_ACTIVITY; |
18f7ba4c KCA |
1429 | if (emp->blink_policy == BLINK_OFF) |
1430 | led_message |= (1 << 16); | |
1431 | } | |
eb40963c | 1432 | spin_unlock_irqrestore(ap->lock, flags); |
18f7ba4c KCA |
1433 | ahci_transmit_led_message(ap, led_message, 4); |
1434 | } | |
1435 | ||
1436 | static void ahci_init_sw_activity(struct ata_link *link) | |
1437 | { | |
1438 | struct ata_port *ap = link->ap; | |
1439 | struct ahci_port_priv *pp = ap->private_data; | |
1440 | struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; | |
1441 | ||
1442 | /* init activity stats, setup timer */ | |
1443 | emp->saved_activity = emp->activity = 0; | |
1444 | setup_timer(&emp->timer, ahci_sw_activity_blink, (unsigned long)link); | |
1445 | ||
1446 | /* check our blink policy and set flag for link if it's enabled */ | |
1447 | if (emp->blink_policy) | |
1448 | link->flags |= ATA_LFLAG_SW_ACTIVITY; | |
1449 | } | |
1450 | ||
1451 | static int ahci_reset_em(struct ata_host *host) | |
1452 | { | |
1453 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; | |
1454 | u32 em_ctl; | |
1455 | ||
1456 | em_ctl = readl(mmio + HOST_EM_CTL); | |
1457 | if ((em_ctl & EM_CTL_TM) || (em_ctl & EM_CTL_RST)) | |
1458 | return -EINVAL; | |
1459 | ||
1460 | writel(em_ctl | EM_CTL_RST, mmio + HOST_EM_CTL); | |
1461 | return 0; | |
1462 | } | |
1463 | ||
1464 | static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, | |
1465 | ssize_t size) | |
1466 | { | |
1467 | struct ahci_host_priv *hpriv = ap->host->private_data; | |
1468 | struct ahci_port_priv *pp = ap->private_data; | |
1469 | void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; | |
1470 | u32 em_ctl; | |
1471 | u32 message[] = {0, 0}; | |
93082f0b | 1472 | unsigned long flags; |
18f7ba4c KCA |
1473 | int pmp; |
1474 | struct ahci_em_priv *emp; | |
1475 | ||
1476 | /* get the slot number from the message */ | |
87943acf | 1477 | pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; |
d50ce07d | 1478 | if (pmp < EM_MAX_SLOTS) |
18f7ba4c KCA |
1479 | emp = &pp->em_priv[pmp]; |
1480 | else | |
1481 | return -EINVAL; | |
1482 | ||
1483 | spin_lock_irqsave(ap->lock, flags); | |
1484 | ||
1485 | /* | |
1486 | * if we are still busy transmitting a previous message, | |
1487 | * do not allow | |
1488 | */ | |
1489 | em_ctl = readl(mmio + HOST_EM_CTL); | |
1490 | if (em_ctl & EM_CTL_TM) { | |
1491 | spin_unlock_irqrestore(ap->lock, flags); | |
4c1e9aa4 | 1492 | return -EBUSY; |
18f7ba4c KCA |
1493 | } |
1494 | ||
1495 | /* | |
1496 | * create message header - this is all zero except for | |
1497 | * the message size, which is 4 bytes. | |
1498 | */ | |
1499 | message[0] |= (4 << 8); | |
1500 | ||
1501 | /* ignore 0:4 of byte zero, fill in port info yourself */ | |
87943acf | 1502 | message[1] = ((state & ~EM_MSG_LED_HBA_PORT) | ap->port_no); |
18f7ba4c KCA |
1503 | |
1504 | /* write message to EM_LOC */ | |
1505 | writel(message[0], mmio + hpriv->em_loc); | |
1506 | writel(message[1], mmio + hpriv->em_loc+4); | |
1507 | ||
1508 | /* save off new led state for port/slot */ | |
208f2a88 | 1509 | emp->led_state = state; |
18f7ba4c KCA |
1510 | |
1511 | /* | |
1512 | * tell hardware to transmit the message | |
1513 | */ | |
1514 | writel(em_ctl | EM_CTL_TM, mmio + HOST_EM_CTL); | |
1515 | ||
1516 | spin_unlock_irqrestore(ap->lock, flags); | |
1517 | return size; | |
1518 | } | |
1519 | ||
1520 | static ssize_t ahci_led_show(struct ata_port *ap, char *buf) | |
1521 | { | |
1522 | struct ahci_port_priv *pp = ap->private_data; | |
1523 | struct ata_link *link; | |
1524 | struct ahci_em_priv *emp; | |
1525 | int rc = 0; | |
1526 | ||
1eca4365 | 1527 | ata_for_each_link(link, ap, EDGE) { |
18f7ba4c KCA |
1528 | emp = &pp->em_priv[link->pmp]; |
1529 | rc += sprintf(buf, "%lx\n", emp->led_state); | |
1530 | } | |
1531 | return rc; | |
1532 | } | |
1533 | ||
1534 | static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, | |
1535 | size_t size) | |
1536 | { | |
1537 | int state; | |
1538 | int pmp; | |
1539 | struct ahci_port_priv *pp = ap->private_data; | |
1540 | struct ahci_em_priv *emp; | |
1541 | ||
1542 | state = simple_strtoul(buf, NULL, 0); | |
1543 | ||
1544 | /* get the slot number from the message */ | |
87943acf | 1545 | pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; |
d50ce07d | 1546 | if (pmp < EM_MAX_SLOTS) |
18f7ba4c KCA |
1547 | emp = &pp->em_priv[pmp]; |
1548 | else | |
1549 | return -EINVAL; | |
1550 | ||
1551 | /* mask off the activity bits if we are in sw_activity | |
1552 | * mode, user should turn off sw_activity before setting | |
1553 | * activity led through em_message | |
1554 | */ | |
1555 | if (emp->blink_policy) | |
87943acf | 1556 | state &= ~EM_MSG_LED_VALUE_ACTIVITY; |
18f7ba4c KCA |
1557 | |
1558 | return ahci_transmit_led_message(ap, state, size); | |
1559 | } | |
1560 | ||
1561 | static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val) | |
1562 | { | |
1563 | struct ata_link *link = dev->link; | |
1564 | struct ata_port *ap = link->ap; | |
1565 | struct ahci_port_priv *pp = ap->private_data; | |
1566 | struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; | |
1567 | u32 port_led_state = emp->led_state; | |
1568 | ||
1569 | /* save the desired Activity LED behavior */ | |
1570 | if (val == OFF) { | |
1571 | /* clear LFLAG */ | |
1572 | link->flags &= ~(ATA_LFLAG_SW_ACTIVITY); | |
1573 | ||
1574 | /* set the LED to OFF */ | |
87943acf | 1575 | port_led_state &= EM_MSG_LED_VALUE_OFF; |
18f7ba4c KCA |
1576 | port_led_state |= (ap->port_no | (link->pmp << 8)); |
1577 | ahci_transmit_led_message(ap, port_led_state, 4); | |
1578 | } else { | |
1579 | link->flags |= ATA_LFLAG_SW_ACTIVITY; | |
1580 | if (val == BLINK_OFF) { | |
1581 | /* set LED to ON for idle */ | |
87943acf | 1582 | port_led_state &= EM_MSG_LED_VALUE_OFF; |
18f7ba4c | 1583 | port_led_state |= (ap->port_no | (link->pmp << 8)); |
87943acf | 1584 | port_led_state |= EM_MSG_LED_VALUE_ON; /* check this */ |
18f7ba4c KCA |
1585 | ahci_transmit_led_message(ap, port_led_state, 4); |
1586 | } | |
1587 | } | |
1588 | emp->blink_policy = val; | |
1589 | return 0; | |
1590 | } | |
1591 | ||
1592 | static ssize_t ahci_activity_show(struct ata_device *dev, char *buf) | |
1593 | { | |
1594 | struct ata_link *link = dev->link; | |
1595 | struct ata_port *ap = link->ap; | |
1596 | struct ahci_port_priv *pp = ap->private_data; | |
1597 | struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; | |
1598 | ||
1599 | /* display the saved value of activity behavior for this | |
1600 | * disk. | |
1601 | */ | |
1602 | return sprintf(buf, "%d\n", emp->blink_policy); | |
1603 | } | |
1604 | ||
2bcd866b JG |
1605 | static void ahci_port_init(struct pci_dev *pdev, struct ata_port *ap, |
1606 | int port_no, void __iomem *mmio, | |
1607 | void __iomem *port_mmio) | |
1608 | { | |
1609 | const char *emsg = NULL; | |
1610 | int rc; | |
1611 | u32 tmp; | |
1612 | ||
1613 | /* make sure port is not active */ | |
1614 | rc = ahci_deinit_port(ap, &emsg); | |
1615 | if (rc) | |
1616 | dev_printk(KERN_WARNING, &pdev->dev, | |
1617 | "%s (%d)\n", emsg, rc); | |
1618 | ||
1619 | /* clear SError */ | |
1620 | tmp = readl(port_mmio + PORT_SCR_ERR); | |
1621 | VPRINTK("PORT_SCR_ERR 0x%x\n", tmp); | |
1622 | writel(tmp, port_mmio + PORT_SCR_ERR); | |
1623 | ||
1624 | /* clear port IRQ */ | |
1625 | tmp = readl(port_mmio + PORT_IRQ_STAT); | |
1626 | VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp); | |
1627 | if (tmp) | |
1628 | writel(tmp, port_mmio + PORT_IRQ_STAT); | |
1629 | ||
1630 | writel(1 << port_no, mmio + HOST_IRQ_STAT); | |
1631 | } | |
1632 | ||
4447d351 | 1633 | static void ahci_init_controller(struct ata_host *host) |
d91542c1 | 1634 | { |
417a1a6d | 1635 | struct ahci_host_priv *hpriv = host->private_data; |
4447d351 TH |
1636 | struct pci_dev *pdev = to_pci_dev(host->dev); |
1637 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; | |
2bcd866b | 1638 | int i; |
cd70c266 | 1639 | void __iomem *port_mmio; |
d91542c1 | 1640 | u32 tmp; |
c40e7cb8 | 1641 | int mv; |
d91542c1 | 1642 | |
417a1a6d | 1643 | if (hpriv->flags & AHCI_HFLAG_MV_PATA) { |
c40e7cb8 JAR |
1644 | if (pdev->device == 0x6121) |
1645 | mv = 2; | |
1646 | else | |
1647 | mv = 4; | |
1648 | port_mmio = __ahci_port_base(host, mv); | |
cd70c266 JG |
1649 | |
1650 | writel(0, port_mmio + PORT_IRQ_MASK); | |
1651 | ||
1652 | /* clear port IRQ */ | |
1653 | tmp = readl(port_mmio + PORT_IRQ_STAT); | |
1654 | VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp); | |
1655 | if (tmp) | |
1656 | writel(tmp, port_mmio + PORT_IRQ_STAT); | |
1657 | } | |
1658 | ||
4447d351 TH |
1659 | for (i = 0; i < host->n_ports; i++) { |
1660 | struct ata_port *ap = host->ports[i]; | |
d91542c1 | 1661 | |
cd70c266 | 1662 | port_mmio = ahci_port_base(ap); |
4447d351 | 1663 | if (ata_port_is_dummy(ap)) |
d91542c1 | 1664 | continue; |
d91542c1 | 1665 | |
2bcd866b | 1666 | ahci_port_init(pdev, ap, i, mmio, port_mmio); |
d91542c1 TH |
1667 | } |
1668 | ||
1669 | tmp = readl(mmio + HOST_CTL); | |
1670 | VPRINTK("HOST_CTL 0x%x\n", tmp); | |
1671 | writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL); | |
1672 | tmp = readl(mmio + HOST_CTL); | |
1673 | VPRINTK("HOST_CTL 0x%x\n", tmp); | |
1674 | } | |
1675 | ||
a878539e JG |
1676 | static void ahci_dev_config(struct ata_device *dev) |
1677 | { | |
1678 | struct ahci_host_priv *hpriv = dev->link->ap->host->private_data; | |
1679 | ||
4cde32fc | 1680 | if (hpriv->flags & AHCI_HFLAG_SECT255) { |
a878539e | 1681 | dev->max_sectors = 255; |
4cde32fc JG |
1682 | ata_dev_printk(dev, KERN_INFO, |
1683 | "SB600 AHCI: limiting to 255 sectors per cmd\n"); | |
1684 | } | |
a878539e JG |
1685 | } |
1686 | ||
422b7595 | 1687 | static unsigned int ahci_dev_classify(struct ata_port *ap) |
1da177e4 | 1688 | { |
4447d351 | 1689 | void __iomem *port_mmio = ahci_port_base(ap); |
1da177e4 | 1690 | struct ata_taskfile tf; |
422b7595 TH |
1691 | u32 tmp; |
1692 | ||
1693 | tmp = readl(port_mmio + PORT_SIG); | |
1694 | tf.lbah = (tmp >> 24) & 0xff; | |
1695 | tf.lbam = (tmp >> 16) & 0xff; | |
1696 | tf.lbal = (tmp >> 8) & 0xff; | |
1697 | tf.nsect = (tmp) & 0xff; | |
1698 | ||
1699 | return ata_dev_classify(&tf); | |
1700 | } | |
1701 | ||
12fad3f9 TH |
1702 | static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag, |
1703 | u32 opts) | |
cc9278ed | 1704 | { |
12fad3f9 TH |
1705 | dma_addr_t cmd_tbl_dma; |
1706 | ||
1707 | cmd_tbl_dma = pp->cmd_tbl_dma + tag * AHCI_CMD_TBL_SZ; | |
1708 | ||
1709 | pp->cmd_slot[tag].opts = cpu_to_le32(opts); | |
1710 | pp->cmd_slot[tag].status = 0; | |
1711 | pp->cmd_slot[tag].tbl_addr = cpu_to_le32(cmd_tbl_dma & 0xffffffff); | |
1712 | pp->cmd_slot[tag].tbl_addr_hi = cpu_to_le32((cmd_tbl_dma >> 16) >> 16); | |
cc9278ed TH |
1713 | } |
1714 | ||
78d5ae39 | 1715 | static int ahci_kick_engine(struct ata_port *ap) |
4658f79b | 1716 | { |
350756f6 | 1717 | void __iomem *port_mmio = ahci_port_base(ap); |
cca3974e | 1718 | struct ahci_host_priv *hpriv = ap->host->private_data; |
520d06f9 | 1719 | u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF; |
bf2af2a2 | 1720 | u32 tmp; |
d2e75dff | 1721 | int busy, rc; |
bf2af2a2 | 1722 | |
d2e75dff TH |
1723 | /* stop engine */ |
1724 | rc = ahci_stop_engine(ap); | |
1725 | if (rc) | |
1726 | goto out_restart; | |
1727 | ||
78d5ae39 SH |
1728 | /* need to do CLO? |
1729 | * always do CLO if PMP is attached (AHCI-1.3 9.2) | |
1730 | */ | |
1731 | busy = status & (ATA_BUSY | ATA_DRQ); | |
1732 | if (!busy && !sata_pmp_attached(ap)) { | |
d2e75dff TH |
1733 | rc = 0; |
1734 | goto out_restart; | |
1735 | } | |
1736 | ||
1737 | if (!(hpriv->cap & HOST_CAP_CLO)) { | |
1738 | rc = -EOPNOTSUPP; | |
1739 | goto out_restart; | |
1740 | } | |
bf2af2a2 | 1741 | |
d2e75dff | 1742 | /* perform CLO */ |
bf2af2a2 BJ |
1743 | tmp = readl(port_mmio + PORT_CMD); |
1744 | tmp |= PORT_CMD_CLO; | |
1745 | writel(tmp, port_mmio + PORT_CMD); | |
1746 | ||
d2e75dff | 1747 | rc = 0; |
bf2af2a2 BJ |
1748 | tmp = ata_wait_register(port_mmio + PORT_CMD, |
1749 | PORT_CMD_CLO, PORT_CMD_CLO, 1, 500); | |
1750 | if (tmp & PORT_CMD_CLO) | |
d2e75dff | 1751 | rc = -EIO; |
bf2af2a2 | 1752 | |
d2e75dff TH |
1753 | /* restart engine */ |
1754 | out_restart: | |
1755 | ahci_start_engine(ap); | |
1756 | return rc; | |
bf2af2a2 BJ |
1757 | } |
1758 | ||
91c4a2e0 TH |
1759 | static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp, |
1760 | struct ata_taskfile *tf, int is_cmd, u16 flags, | |
1761 | unsigned long timeout_msec) | |
bf2af2a2 | 1762 | { |
91c4a2e0 | 1763 | const u32 cmd_fis_len = 5; /* five dwords */ |
4658f79b | 1764 | struct ahci_port_priv *pp = ap->private_data; |
4447d351 | 1765 | void __iomem *port_mmio = ahci_port_base(ap); |
91c4a2e0 TH |
1766 | u8 *fis = pp->cmd_tbl; |
1767 | u32 tmp; | |
1768 | ||
1769 | /* prep the command */ | |
1770 | ata_tf_to_fis(tf, pmp, is_cmd, fis); | |
1771 | ahci_fill_cmd_slot(pp, 0, cmd_fis_len | flags | (pmp << 12)); | |
1772 | ||
1773 | /* issue & wait */ | |
1774 | writel(1, port_mmio + PORT_CMD_ISSUE); | |
1775 | ||
1776 | if (timeout_msec) { | |
1777 | tmp = ata_wait_register(port_mmio + PORT_CMD_ISSUE, 0x1, 0x1, | |
1778 | 1, timeout_msec); | |
1779 | if (tmp & 0x1) { | |
78d5ae39 | 1780 | ahci_kick_engine(ap); |
91c4a2e0 TH |
1781 | return -EBUSY; |
1782 | } | |
1783 | } else | |
1784 | readl(port_mmio + PORT_CMD_ISSUE); /* flush */ | |
1785 | ||
1786 | return 0; | |
1787 | } | |
1788 | ||
bd17243a SH |
1789 | static int ahci_do_softreset(struct ata_link *link, unsigned int *class, |
1790 | int pmp, unsigned long deadline, | |
1791 | int (*check_ready)(struct ata_link *link)) | |
91c4a2e0 | 1792 | { |
cc0680a5 | 1793 | struct ata_port *ap = link->ap; |
5594639a | 1794 | struct ahci_host_priv *hpriv = ap->host->private_data; |
4658f79b | 1795 | const char *reason = NULL; |
2cbb79eb | 1796 | unsigned long now, msecs; |
4658f79b | 1797 | struct ata_taskfile tf; |
4658f79b TH |
1798 | int rc; |
1799 | ||
1800 | DPRINTK("ENTER\n"); | |
1801 | ||
1802 | /* prepare for SRST (AHCI-1.1 10.4.1) */ | |
78d5ae39 | 1803 | rc = ahci_kick_engine(ap); |
994056d7 | 1804 | if (rc && rc != -EOPNOTSUPP) |
cc0680a5 | 1805 | ata_link_printk(link, KERN_WARNING, |
994056d7 | 1806 | "failed to reset engine (errno=%d)\n", rc); |
4658f79b | 1807 | |
cc0680a5 | 1808 | ata_tf_init(link->device, &tf); |
4658f79b TH |
1809 | |
1810 | /* issue the first D2H Register FIS */ | |
2cbb79eb TH |
1811 | msecs = 0; |
1812 | now = jiffies; | |
1813 | if (time_after(now, deadline)) | |
1814 | msecs = jiffies_to_msecs(deadline - now); | |
1815 | ||
4658f79b | 1816 | tf.ctl |= ATA_SRST; |
a9cf5e85 | 1817 | if (ahci_exec_polled_cmd(ap, pmp, &tf, 0, |
91c4a2e0 | 1818 | AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY, msecs)) { |
4658f79b TH |
1819 | rc = -EIO; |
1820 | reason = "1st FIS failed"; | |
1821 | goto fail; | |
1822 | } | |
1823 | ||
1824 | /* spec says at least 5us, but be generous and sleep for 1ms */ | |
1825 | msleep(1); | |
1826 | ||
1827 | /* issue the second D2H Register FIS */ | |
4658f79b | 1828 | tf.ctl &= ~ATA_SRST; |
a9cf5e85 | 1829 | ahci_exec_polled_cmd(ap, pmp, &tf, 0, 0, 0); |
4658f79b | 1830 | |
705e76be | 1831 | /* wait for link to become ready */ |
bd17243a | 1832 | rc = ata_wait_after_reset(link, deadline, check_ready); |
5594639a TH |
1833 | if (rc == -EBUSY && hpriv->flags & AHCI_HFLAG_SRST_TOUT_IS_OFFLINE) { |
1834 | /* | |
1835 | * Workaround for cases where link online status can't | |
1836 | * be trusted. Treat device readiness timeout as link | |
1837 | * offline. | |
1838 | */ | |
1839 | ata_link_printk(link, KERN_INFO, | |
1840 | "device not ready, treating as offline\n"); | |
1841 | *class = ATA_DEV_NONE; | |
1842 | } else if (rc) { | |
1843 | /* link occupied, -ENODEV too is an error */ | |
9b89391c TH |
1844 | reason = "device not ready"; |
1845 | goto fail; | |
5594639a TH |
1846 | } else |
1847 | *class = ahci_dev_classify(ap); | |
4658f79b TH |
1848 | |
1849 | DPRINTK("EXIT, class=%u\n", *class); | |
1850 | return 0; | |
1851 | ||
4658f79b | 1852 | fail: |
cc0680a5 | 1853 | ata_link_printk(link, KERN_ERR, "softreset failed (%s)\n", reason); |
4658f79b TH |
1854 | return rc; |
1855 | } | |
1856 | ||
bd17243a SH |
1857 | static int ahci_check_ready(struct ata_link *link) |
1858 | { | |
1859 | void __iomem *port_mmio = ahci_port_base(link->ap); | |
1860 | u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF; | |
1861 | ||
1862 | return ata_check_ready(status); | |
1863 | } | |
1864 | ||
1865 | static int ahci_softreset(struct ata_link *link, unsigned int *class, | |
1866 | unsigned long deadline) | |
1867 | { | |
1868 | int pmp = sata_srst_pmp(link); | |
1869 | ||
1870 | DPRINTK("ENTER\n"); | |
1871 | ||
1872 | return ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready); | |
1873 | } | |
1874 | ||
1875 | static int ahci_sb600_check_ready(struct ata_link *link) | |
1876 | { | |
1877 | void __iomem *port_mmio = ahci_port_base(link->ap); | |
1878 | u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF; | |
1879 | u32 irq_status = readl(port_mmio + PORT_IRQ_STAT); | |
1880 | ||
1881 | /* | |
1882 | * There is no need to check TFDATA if BAD PMP is found due to HW bug, | |
1883 | * which can save timeout delay. | |
1884 | */ | |
1885 | if (irq_status & PORT_IRQ_BAD_PMP) | |
1886 | return -EIO; | |
1887 | ||
1888 | return ata_check_ready(status); | |
1889 | } | |
1890 | ||
1891 | static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class, | |
1892 | unsigned long deadline) | |
1893 | { | |
1894 | struct ata_port *ap = link->ap; | |
1895 | void __iomem *port_mmio = ahci_port_base(ap); | |
1896 | int pmp = sata_srst_pmp(link); | |
1897 | int rc; | |
1898 | u32 irq_sts; | |
1899 | ||
1900 | DPRINTK("ENTER\n"); | |
1901 | ||
1902 | rc = ahci_do_softreset(link, class, pmp, deadline, | |
1903 | ahci_sb600_check_ready); | |
1904 | ||
1905 | /* | |
1906 | * Soft reset fails on some ATI chips with IPMS set when PMP | |
1907 | * is enabled but SATA HDD/ODD is connected to SATA port, | |
1908 | * do soft reset again to port 0. | |
1909 | */ | |
1910 | if (rc == -EIO) { | |
1911 | irq_sts = readl(port_mmio + PORT_IRQ_STAT); | |
1912 | if (irq_sts & PORT_IRQ_BAD_PMP) { | |
1913 | ata_link_printk(link, KERN_WARNING, | |
b6931c1f SH |
1914 | "applying SB600 PMP SRST workaround " |
1915 | "and retrying\n"); | |
bd17243a SH |
1916 | rc = ahci_do_softreset(link, class, 0, deadline, |
1917 | ahci_check_ready); | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | return rc; | |
1922 | } | |
1923 | ||
cc0680a5 | 1924 | static int ahci_hardreset(struct ata_link *link, unsigned int *class, |
d4b2bab4 | 1925 | unsigned long deadline) |
422b7595 | 1926 | { |
9dadd45b | 1927 | const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context); |
cc0680a5 | 1928 | struct ata_port *ap = link->ap; |
4296971d TH |
1929 | struct ahci_port_priv *pp = ap->private_data; |
1930 | u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; | |
1931 | struct ata_taskfile tf; | |
9dadd45b | 1932 | bool online; |
4bd00f6a TH |
1933 | int rc; |
1934 | ||
1935 | DPRINTK("ENTER\n"); | |
1da177e4 | 1936 | |
4447d351 | 1937 | ahci_stop_engine(ap); |
4296971d TH |
1938 | |
1939 | /* clear D2H reception area to properly wait for D2H FIS */ | |
cc0680a5 | 1940 | ata_tf_init(link->device, &tf); |
dfd7a3db | 1941 | tf.command = 0x80; |
9977126c | 1942 | ata_tf_to_fis(&tf, 0, 0, d2h_fis); |
4296971d | 1943 | |
9dadd45b TH |
1944 | rc = sata_link_hardreset(link, timing, deadline, &online, |
1945 | ahci_check_ready); | |
4296971d | 1946 | |
4447d351 | 1947 | ahci_start_engine(ap); |
1da177e4 | 1948 | |
9dadd45b | 1949 | if (online) |
4bd00f6a | 1950 | *class = ahci_dev_classify(ap); |
1da177e4 | 1951 | |
4bd00f6a TH |
1952 | DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); |
1953 | return rc; | |
1954 | } | |
1955 | ||
cc0680a5 | 1956 | static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class, |
d4b2bab4 | 1957 | unsigned long deadline) |
ad616ffb | 1958 | { |
cc0680a5 | 1959 | struct ata_port *ap = link->ap; |
9dadd45b | 1960 | bool online; |
ad616ffb TH |
1961 | int rc; |
1962 | ||
1963 | DPRINTK("ENTER\n"); | |
1964 | ||
4447d351 | 1965 | ahci_stop_engine(ap); |
ad616ffb | 1966 | |
cc0680a5 | 1967 | rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context), |
9dadd45b | 1968 | deadline, &online, NULL); |
ad616ffb | 1969 | |
4447d351 | 1970 | ahci_start_engine(ap); |
ad616ffb TH |
1971 | |
1972 | DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); | |
1973 | ||
1974 | /* vt8251 doesn't clear BSY on signature FIS reception, | |
1975 | * request follow-up softreset. | |
1976 | */ | |
9dadd45b | 1977 | return online ? -EAGAIN : rc; |
ad616ffb TH |
1978 | } |
1979 | ||
edc93052 TH |
1980 | static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, |
1981 | unsigned long deadline) | |
1982 | { | |
1983 | struct ata_port *ap = link->ap; | |
1984 | struct ahci_port_priv *pp = ap->private_data; | |
1985 | u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; | |
1986 | struct ata_taskfile tf; | |
9dadd45b | 1987 | bool online; |
edc93052 TH |
1988 | int rc; |
1989 | ||
1990 | ahci_stop_engine(ap); | |
1991 | ||
1992 | /* clear D2H reception area to properly wait for D2H FIS */ | |
1993 | ata_tf_init(link->device, &tf); | |
1994 | tf.command = 0x80; | |
1995 | ata_tf_to_fis(&tf, 0, 0, d2h_fis); | |
1996 | ||
1997 | rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context), | |
9dadd45b | 1998 | deadline, &online, NULL); |
edc93052 TH |
1999 | |
2000 | ahci_start_engine(ap); | |
2001 | ||
edc93052 TH |
2002 | /* The pseudo configuration device on SIMG4726 attached to |
2003 | * ASUS P5W-DH Deluxe doesn't send signature FIS after | |
2004 | * hardreset if no device is attached to the first downstream | |
2005 | * port && the pseudo device locks up on SRST w/ PMP==0. To | |
2006 | * work around this, wait for !BSY only briefly. If BSY isn't | |
2007 | * cleared, perform CLO and proceed to IDENTIFY (achieved by | |
2008 | * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA). | |
2009 | * | |
2010 | * Wait for two seconds. Devices attached to downstream port | |
2011 | * which can't process the following IDENTIFY after this will | |
2012 | * have to be reset again. For most cases, this should | |
2013 | * suffice while making probing snappish enough. | |
2014 | */ | |
9dadd45b TH |
2015 | if (online) { |
2016 | rc = ata_wait_after_reset(link, jiffies + 2 * HZ, | |
2017 | ahci_check_ready); | |
2018 | if (rc) | |
78d5ae39 | 2019 | ahci_kick_engine(ap); |
9dadd45b | 2020 | } |
9dadd45b | 2021 | return rc; |
edc93052 TH |
2022 | } |
2023 | ||
cc0680a5 | 2024 | static void ahci_postreset(struct ata_link *link, unsigned int *class) |
4bd00f6a | 2025 | { |
cc0680a5 | 2026 | struct ata_port *ap = link->ap; |
4447d351 | 2027 | void __iomem *port_mmio = ahci_port_base(ap); |
4bd00f6a TH |
2028 | u32 new_tmp, tmp; |
2029 | ||
203c75b8 | 2030 | ata_std_postreset(link, class); |
02eaa666 JG |
2031 | |
2032 | /* Make sure port's ATAPI bit is set appropriately */ | |
2033 | new_tmp = tmp = readl(port_mmio + PORT_CMD); | |
4bd00f6a | 2034 | if (*class == ATA_DEV_ATAPI) |
02eaa666 JG |
2035 | new_tmp |= PORT_CMD_ATAPI; |
2036 | else | |
2037 | new_tmp &= ~PORT_CMD_ATAPI; | |
2038 | if (new_tmp != tmp) { | |
2039 | writel(new_tmp, port_mmio + PORT_CMD); | |
2040 | readl(port_mmio + PORT_CMD); /* flush */ | |
2041 | } | |
1da177e4 LT |
2042 | } |
2043 | ||
12fad3f9 | 2044 | static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl) |
1da177e4 | 2045 | { |
cedc9a47 | 2046 | struct scatterlist *sg; |
ff2aeb1e TH |
2047 | struct ahci_sg *ahci_sg = cmd_tbl + AHCI_CMD_TBL_HDR_SZ; |
2048 | unsigned int si; | |
1da177e4 LT |
2049 | |
2050 | VPRINTK("ENTER\n"); | |
2051 | ||
2052 | /* | |
2053 | * Next, the S/G list. | |
2054 | */ | |
ff2aeb1e | 2055 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
cedc9a47 JG |
2056 | dma_addr_t addr = sg_dma_address(sg); |
2057 | u32 sg_len = sg_dma_len(sg); | |
2058 | ||
ff2aeb1e TH |
2059 | ahci_sg[si].addr = cpu_to_le32(addr & 0xffffffff); |
2060 | ahci_sg[si].addr_hi = cpu_to_le32((addr >> 16) >> 16); | |
2061 | ahci_sg[si].flags_size = cpu_to_le32(sg_len - 1); | |
1da177e4 | 2062 | } |
828d09de | 2063 | |
ff2aeb1e | 2064 | return si; |
1da177e4 LT |
2065 | } |
2066 | ||
d6ef3153 SH |
2067 | static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc) |
2068 | { | |
2069 | struct ata_port *ap = qc->ap; | |
2070 | struct ahci_port_priv *pp = ap->private_data; | |
2071 | ||
2072 | if (!sata_pmp_attached(ap) || pp->fbs_enabled) | |
2073 | return ata_std_qc_defer(qc); | |
2074 | else | |
2075 | return sata_pmp_qc_defer_cmd_switch(qc); | |
2076 | } | |
2077 | ||
1da177e4 LT |
2078 | static void ahci_qc_prep(struct ata_queued_cmd *qc) |
2079 | { | |
a0ea7328 JG |
2080 | struct ata_port *ap = qc->ap; |
2081 | struct ahci_port_priv *pp = ap->private_data; | |
405e66b3 | 2082 | int is_atapi = ata_is_atapi(qc->tf.protocol); |
12fad3f9 | 2083 | void *cmd_tbl; |
1da177e4 LT |
2084 | u32 opts; |
2085 | const u32 cmd_fis_len = 5; /* five dwords */ | |
828d09de | 2086 | unsigned int n_elem; |
1da177e4 | 2087 | |
1da177e4 LT |
2088 | /* |
2089 | * Fill in command table information. First, the header, | |
2090 | * a SATA Register - Host to Device command FIS. | |
2091 | */ | |
12fad3f9 TH |
2092 | cmd_tbl = pp->cmd_tbl + qc->tag * AHCI_CMD_TBL_SZ; |
2093 | ||
7d50b60b | 2094 | ata_tf_to_fis(&qc->tf, qc->dev->link->pmp, 1, cmd_tbl); |
cc9278ed | 2095 | if (is_atapi) { |
12fad3f9 TH |
2096 | memset(cmd_tbl + AHCI_CMD_TBL_CDB, 0, 32); |
2097 | memcpy(cmd_tbl + AHCI_CMD_TBL_CDB, qc->cdb, qc->dev->cdb_len); | |
a0ea7328 | 2098 | } |
1da177e4 | 2099 | |
cc9278ed TH |
2100 | n_elem = 0; |
2101 | if (qc->flags & ATA_QCFLAG_DMAMAP) | |
12fad3f9 | 2102 | n_elem = ahci_fill_sg(qc, cmd_tbl); |
1da177e4 | 2103 | |
cc9278ed TH |
2104 | /* |
2105 | * Fill in command slot information. | |
2106 | */ | |
7d50b60b | 2107 | opts = cmd_fis_len | n_elem << 16 | (qc->dev->link->pmp << 12); |
cc9278ed TH |
2108 | if (qc->tf.flags & ATA_TFLAG_WRITE) |
2109 | opts |= AHCI_CMD_WRITE; | |
2110 | if (is_atapi) | |
4b10e559 | 2111 | opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH; |
828d09de | 2112 | |
12fad3f9 | 2113 | ahci_fill_cmd_slot(pp, qc->tag, opts); |
1da177e4 LT |
2114 | } |
2115 | ||
d6ef3153 SH |
2116 | static void ahci_fbs_dec_intr(struct ata_port *ap) |
2117 | { | |
2118 | struct ahci_port_priv *pp = ap->private_data; | |
2119 | void __iomem *port_mmio = ahci_port_base(ap); | |
2120 | u32 fbs = readl(port_mmio + PORT_FBS); | |
2121 | int retries = 3; | |
2122 | ||
2123 | DPRINTK("ENTER\n"); | |
2124 | BUG_ON(!pp->fbs_enabled); | |
2125 | ||
2126 | /* time to wait for DEC is not specified by AHCI spec, | |
2127 | * add a retry loop for safety. | |
2128 | */ | |
2129 | writel(fbs | PORT_FBS_DEC, port_mmio + PORT_FBS); | |
2130 | fbs = readl(port_mmio + PORT_FBS); | |
2131 | while ((fbs & PORT_FBS_DEC) && retries--) { | |
2132 | udelay(1); | |
2133 | fbs = readl(port_mmio + PORT_FBS); | |
2134 | } | |
2135 | ||
2136 | if (fbs & PORT_FBS_DEC) | |
2137 | dev_printk(KERN_ERR, ap->host->dev, | |
2138 | "failed to clear device error\n"); | |
2139 | } | |
2140 | ||
78cd52d0 | 2141 | static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) |
1da177e4 | 2142 | { |
417a1a6d | 2143 | struct ahci_host_priv *hpriv = ap->host->private_data; |
78cd52d0 | 2144 | struct ahci_port_priv *pp = ap->private_data; |
7d50b60b TH |
2145 | struct ata_eh_info *host_ehi = &ap->link.eh_info; |
2146 | struct ata_link *link = NULL; | |
2147 | struct ata_queued_cmd *active_qc; | |
2148 | struct ata_eh_info *active_ehi; | |
d6ef3153 | 2149 | bool fbs_need_dec = false; |
78cd52d0 | 2150 | u32 serror; |
1da177e4 | 2151 | |
d6ef3153 SH |
2152 | /* determine active link with error */ |
2153 | if (pp->fbs_enabled) { | |
2154 | void __iomem *port_mmio = ahci_port_base(ap); | |
2155 | u32 fbs = readl(port_mmio + PORT_FBS); | |
2156 | int pmp = fbs >> PORT_FBS_DWE_OFFSET; | |
2157 | ||
2158 | if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links) && | |
2159 | ata_link_online(&ap->pmp_link[pmp])) { | |
2160 | link = &ap->pmp_link[pmp]; | |
2161 | fbs_need_dec = true; | |
2162 | } | |
2163 | ||
2164 | } else | |
2165 | ata_for_each_link(link, ap, EDGE) | |
2166 | if (ata_link_active(link)) | |
2167 | break; | |
2168 | ||
7d50b60b TH |
2169 | if (!link) |
2170 | link = &ap->link; | |
2171 | ||
2172 | active_qc = ata_qc_from_tag(ap, link->active_tag); | |
2173 | active_ehi = &link->eh_info; | |
2174 | ||
2175 | /* record irq stat */ | |
2176 | ata_ehi_clear_desc(host_ehi); | |
2177 | ata_ehi_push_desc(host_ehi, "irq_stat 0x%08x", irq_stat); | |
1da177e4 | 2178 | |
78cd52d0 | 2179 | /* AHCI needs SError cleared; otherwise, it might lock up */ |
82ef04fb TH |
2180 | ahci_scr_read(&ap->link, SCR_ERROR, &serror); |
2181 | ahci_scr_write(&ap->link, SCR_ERROR, serror); | |
7d50b60b | 2182 | host_ehi->serror |= serror; |
78cd52d0 | 2183 | |
41669553 | 2184 | /* some controllers set IRQ_IF_ERR on device errors, ignore it */ |
417a1a6d | 2185 | if (hpriv->flags & AHCI_HFLAG_IGN_IRQ_IF_ERR) |
41669553 TH |
2186 | irq_stat &= ~PORT_IRQ_IF_ERR; |
2187 | ||
55a61604 | 2188 | if (irq_stat & PORT_IRQ_TF_ERR) { |
7d50b60b TH |
2189 | /* If qc is active, charge it; otherwise, the active |
2190 | * link. There's no active qc on NCQ errors. It will | |
2191 | * be determined by EH by reading log page 10h. | |
2192 | */ | |
2193 | if (active_qc) | |
2194 | active_qc->err_mask |= AC_ERR_DEV; | |
2195 | else | |
2196 | active_ehi->err_mask |= AC_ERR_DEV; | |
2197 | ||
417a1a6d | 2198 | if (hpriv->flags & AHCI_HFLAG_IGN_SERR_INTERNAL) |
7d50b60b TH |
2199 | host_ehi->serror &= ~SERR_INTERNAL; |
2200 | } | |
2201 | ||
2202 | if (irq_stat & PORT_IRQ_UNK_FIS) { | |
2203 | u32 *unk = (u32 *)(pp->rx_fis + RX_FIS_UNK); | |
2204 | ||
2205 | active_ehi->err_mask |= AC_ERR_HSM; | |
cf480626 | 2206 | active_ehi->action |= ATA_EH_RESET; |
7d50b60b TH |
2207 | ata_ehi_push_desc(active_ehi, |
2208 | "unknown FIS %08x %08x %08x %08x" , | |
2209 | unk[0], unk[1], unk[2], unk[3]); | |
2210 | } | |
2211 | ||
071f44b1 | 2212 | if (sata_pmp_attached(ap) && (irq_stat & PORT_IRQ_BAD_PMP)) { |
7d50b60b | 2213 | active_ehi->err_mask |= AC_ERR_HSM; |
cf480626 | 2214 | active_ehi->action |= ATA_EH_RESET; |
7d50b60b | 2215 | ata_ehi_push_desc(active_ehi, "incorrect PMP"); |
55a61604 | 2216 | } |
78cd52d0 TH |
2217 | |
2218 | if (irq_stat & (PORT_IRQ_HBUS_ERR | PORT_IRQ_HBUS_DATA_ERR)) { | |
7d50b60b | 2219 | host_ehi->err_mask |= AC_ERR_HOST_BUS; |
cf480626 | 2220 | host_ehi->action |= ATA_EH_RESET; |
7d50b60b | 2221 | ata_ehi_push_desc(host_ehi, "host bus error"); |
1da177e4 LT |
2222 | } |
2223 | ||
78cd52d0 | 2224 | if (irq_stat & PORT_IRQ_IF_ERR) { |
d6ef3153 SH |
2225 | if (fbs_need_dec) |
2226 | active_ehi->err_mask |= AC_ERR_DEV; | |
2227 | else { | |
2228 | host_ehi->err_mask |= AC_ERR_ATA_BUS; | |
2229 | host_ehi->action |= ATA_EH_RESET; | |
2230 | } | |
2231 | ||
7d50b60b | 2232 | ata_ehi_push_desc(host_ehi, "interface fatal error"); |
78cd52d0 | 2233 | } |
1da177e4 | 2234 | |
78cd52d0 | 2235 | if (irq_stat & (PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY)) { |
7d50b60b TH |
2236 | ata_ehi_hotplugged(host_ehi); |
2237 | ata_ehi_push_desc(host_ehi, "%s", | |
2238 | irq_stat & PORT_IRQ_CONNECT ? | |
78cd52d0 TH |
2239 | "connection status changed" : "PHY RDY changed"); |
2240 | } | |
2241 | ||
78cd52d0 | 2242 | /* okay, let's hand over to EH */ |
a72ec4ce | 2243 | |
78cd52d0 TH |
2244 | if (irq_stat & PORT_IRQ_FREEZE) |
2245 | ata_port_freeze(ap); | |
d6ef3153 SH |
2246 | else if (fbs_need_dec) { |
2247 | ata_link_abort(link); | |
2248 | ahci_fbs_dec_intr(ap); | |
2249 | } else | |
78cd52d0 | 2250 | ata_port_abort(ap); |
1da177e4 LT |
2251 | } |
2252 | ||
df69c9c5 | 2253 | static void ahci_port_intr(struct ata_port *ap) |
1da177e4 | 2254 | { |
350756f6 | 2255 | void __iomem *port_mmio = ahci_port_base(ap); |
9af5c9c9 | 2256 | struct ata_eh_info *ehi = &ap->link.eh_info; |
0291f95f | 2257 | struct ahci_port_priv *pp = ap->private_data; |
5f226c6b | 2258 | struct ahci_host_priv *hpriv = ap->host->private_data; |
b06ce3e5 | 2259 | int resetting = !!(ap->pflags & ATA_PFLAG_RESETTING); |
12fad3f9 | 2260 | u32 status, qc_active; |
459ad688 | 2261 | int rc; |
1da177e4 LT |
2262 | |
2263 | status = readl(port_mmio + PORT_IRQ_STAT); | |
2264 | writel(status, port_mmio + PORT_IRQ_STAT); | |
2265 | ||
b06ce3e5 TH |
2266 | /* ignore BAD_PMP while resetting */ |
2267 | if (unlikely(resetting)) | |
2268 | status &= ~PORT_IRQ_BAD_PMP; | |
2269 | ||
31556594 KCA |
2270 | /* If we are getting PhyRdy, this is |
2271 | * just a power state change, we should | |
2272 | * clear out this, plus the PhyRdy/Comm | |
2273 | * Wake bits from Serror | |
2274 | */ | |
2275 | if ((hpriv->flags & AHCI_HFLAG_NO_HOTPLUG) && | |
2276 | (status & PORT_IRQ_PHYRDY)) { | |
2277 | status &= ~PORT_IRQ_PHYRDY; | |
82ef04fb | 2278 | ahci_scr_write(&ap->link, SCR_ERROR, ((1 << 16) | (1 << 18))); |
31556594 KCA |
2279 | } |
2280 | ||
78cd52d0 TH |
2281 | if (unlikely(status & PORT_IRQ_ERROR)) { |
2282 | ahci_error_intr(ap, status); | |
2283 | return; | |
1da177e4 LT |
2284 | } |
2285 | ||
2f294968 | 2286 | if (status & PORT_IRQ_SDB_FIS) { |
5f226c6b TH |
2287 | /* If SNotification is available, leave notification |
2288 | * handling to sata_async_notification(). If not, | |
2289 | * emulate it by snooping SDB FIS RX area. | |
2290 | * | |
2291 | * Snooping FIS RX area is probably cheaper than | |
2292 | * poking SNotification but some constrollers which | |
2293 | * implement SNotification, ICH9 for example, don't | |
2294 | * store AN SDB FIS into receive area. | |
2f294968 | 2295 | */ |
5f226c6b | 2296 | if (hpriv->cap & HOST_CAP_SNTF) |
7d77b247 | 2297 | sata_async_notification(ap); |
5f226c6b TH |
2298 | else { |
2299 | /* If the 'N' bit in word 0 of the FIS is set, | |
2300 | * we just received asynchronous notification. | |
2301 | * Tell libata about it. | |
d6ef3153 SH |
2302 | * |
2303 | * Lack of SNotification should not appear in | |
2304 | * ahci 1.2, so the workaround is unnecessary | |
2305 | * when FBS is enabled. | |
5f226c6b | 2306 | */ |
d6ef3153 SH |
2307 | if (pp->fbs_enabled) |
2308 | WARN_ON_ONCE(1); | |
2309 | else { | |
2310 | const __le32 *f = pp->rx_fis + RX_FIS_SDB; | |
2311 | u32 f0 = le32_to_cpu(f[0]); | |
2312 | if (f0 & (1 << 15)) | |
2313 | sata_async_notification(ap); | |
2314 | } | |
5f226c6b | 2315 | } |
2f294968 KCA |
2316 | } |
2317 | ||
7d50b60b TH |
2318 | /* pp->active_link is valid iff any command is in flight */ |
2319 | if (ap->qc_active && pp->active_link->sactive) | |
12fad3f9 TH |
2320 | qc_active = readl(port_mmio + PORT_SCR_ACT); |
2321 | else | |
2322 | qc_active = readl(port_mmio + PORT_CMD_ISSUE); | |
2323 | ||
79f97dad | 2324 | rc = ata_qc_complete_multiple(ap, qc_active); |
b06ce3e5 | 2325 | |
459ad688 TH |
2326 | /* while resetting, invalid completions are expected */ |
2327 | if (unlikely(rc < 0 && !resetting)) { | |
12fad3f9 | 2328 | ehi->err_mask |= AC_ERR_HSM; |
cf480626 | 2329 | ehi->action |= ATA_EH_RESET; |
12fad3f9 | 2330 | ata_port_freeze(ap); |
1da177e4 | 2331 | } |
1da177e4 LT |
2332 | } |
2333 | ||
7d12e780 | 2334 | static irqreturn_t ahci_interrupt(int irq, void *dev_instance) |
1da177e4 | 2335 | { |
cca3974e | 2336 | struct ata_host *host = dev_instance; |
1da177e4 LT |
2337 | struct ahci_host_priv *hpriv; |
2338 | unsigned int i, handled = 0; | |
ea6ba10b | 2339 | void __iomem *mmio; |
d28f87aa | 2340 | u32 irq_stat, irq_masked; |
1da177e4 LT |
2341 | |
2342 | VPRINTK("ENTER\n"); | |
2343 | ||
cca3974e | 2344 | hpriv = host->private_data; |
0d5ff566 | 2345 | mmio = host->iomap[AHCI_PCI_BAR]; |
1da177e4 LT |
2346 | |
2347 | /* sigh. 0xffffffff is a valid return from h/w */ | |
2348 | irq_stat = readl(mmio + HOST_IRQ_STAT); | |
1da177e4 LT |
2349 | if (!irq_stat) |
2350 | return IRQ_NONE; | |
2351 | ||
d28f87aa TH |
2352 | irq_masked = irq_stat & hpriv->port_map; |
2353 | ||
2dcb407e | 2354 | spin_lock(&host->lock); |
1da177e4 | 2355 | |
2dcb407e | 2356 | for (i = 0; i < host->n_ports; i++) { |
1da177e4 | 2357 | struct ata_port *ap; |
1da177e4 | 2358 | |
d28f87aa | 2359 | if (!(irq_masked & (1 << i))) |
67846b30 JG |
2360 | continue; |
2361 | ||
cca3974e | 2362 | ap = host->ports[i]; |
67846b30 | 2363 | if (ap) { |
df69c9c5 | 2364 | ahci_port_intr(ap); |
67846b30 JG |
2365 | VPRINTK("port %u\n", i); |
2366 | } else { | |
2367 | VPRINTK("port %u (no irq)\n", i); | |
6971ed1f | 2368 | if (ata_ratelimit()) |
cca3974e | 2369 | dev_printk(KERN_WARNING, host->dev, |
a9524a76 | 2370 | "interrupt on disabled port %u\n", i); |
1da177e4 | 2371 | } |
67846b30 | 2372 | |
1da177e4 LT |
2373 | handled = 1; |
2374 | } | |
2375 | ||
d28f87aa TH |
2376 | /* HOST_IRQ_STAT behaves as level triggered latch meaning that |
2377 | * it should be cleared after all the port events are cleared; | |
2378 | * otherwise, it will raise a spurious interrupt after each | |
2379 | * valid one. Please read section 10.6.2 of ahci 1.1 for more | |
2380 | * information. | |
2381 | * | |
2382 | * Also, use the unmasked value to clear interrupt as spurious | |
2383 | * pending event on a dummy port might cause screaming IRQ. | |
2384 | */ | |
ea0c62f7 TH |
2385 | writel(irq_stat, mmio + HOST_IRQ_STAT); |
2386 | ||
cca3974e | 2387 | spin_unlock(&host->lock); |
1da177e4 LT |
2388 | |
2389 | VPRINTK("EXIT\n"); | |
2390 | ||
2391 | return IRQ_RETVAL(handled); | |
2392 | } | |
2393 | ||
9a3d9eb0 | 2394 | static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc) |
1da177e4 LT |
2395 | { |
2396 | struct ata_port *ap = qc->ap; | |
4447d351 | 2397 | void __iomem *port_mmio = ahci_port_base(ap); |
7d50b60b TH |
2398 | struct ahci_port_priv *pp = ap->private_data; |
2399 | ||
2400 | /* Keep track of the currently active link. It will be used | |
2401 | * in completion path to determine whether NCQ phase is in | |
2402 | * progress. | |
2403 | */ | |
2404 | pp->active_link = qc->dev->link; | |
1da177e4 | 2405 | |
12fad3f9 TH |
2406 | if (qc->tf.protocol == ATA_PROT_NCQ) |
2407 | writel(1 << qc->tag, port_mmio + PORT_SCR_ACT); | |
d6ef3153 SH |
2408 | |
2409 | if (pp->fbs_enabled && pp->fbs_last_dev != qc->dev->link->pmp) { | |
2410 | u32 fbs = readl(port_mmio + PORT_FBS); | |
2411 | fbs &= ~(PORT_FBS_DEV_MASK | PORT_FBS_DEC); | |
2412 | fbs |= qc->dev->link->pmp << PORT_FBS_DEV_OFFSET; | |
2413 | writel(fbs, port_mmio + PORT_FBS); | |
2414 | pp->fbs_last_dev = qc->dev->link->pmp; | |
2415 | } | |
2416 | ||
12fad3f9 | 2417 | writel(1 << qc->tag, port_mmio + PORT_CMD_ISSUE); |
1da177e4 | 2418 | |
18f7ba4c KCA |
2419 | ahci_sw_activity(qc->dev->link); |
2420 | ||
1da177e4 LT |
2421 | return 0; |
2422 | } | |
2423 | ||
4c9bf4e7 TH |
2424 | static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc) |
2425 | { | |
2426 | struct ahci_port_priv *pp = qc->ap->private_data; | |
2427 | u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; | |
2428 | ||
d6ef3153 SH |
2429 | if (pp->fbs_enabled) |
2430 | d2h_fis += qc->dev->link->pmp * AHCI_RX_FIS_SZ; | |
2431 | ||
4c9bf4e7 TH |
2432 | ata_tf_from_fis(d2h_fis, &qc->result_tf); |
2433 | return true; | |
2434 | } | |
2435 | ||
78cd52d0 TH |
2436 | static void ahci_freeze(struct ata_port *ap) |
2437 | { | |
4447d351 | 2438 | void __iomem *port_mmio = ahci_port_base(ap); |
78cd52d0 TH |
2439 | |
2440 | /* turn IRQ off */ | |
2441 | writel(0, port_mmio + PORT_IRQ_MASK); | |
2442 | } | |
2443 | ||
2444 | static void ahci_thaw(struct ata_port *ap) | |
2445 | { | |
0d5ff566 | 2446 | void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; |
4447d351 | 2447 | void __iomem *port_mmio = ahci_port_base(ap); |
78cd52d0 | 2448 | u32 tmp; |
a7384925 | 2449 | struct ahci_port_priv *pp = ap->private_data; |
78cd52d0 TH |
2450 | |
2451 | /* clear IRQ */ | |
2452 | tmp = readl(port_mmio + PORT_IRQ_STAT); | |
2453 | writel(tmp, port_mmio + PORT_IRQ_STAT); | |
a718728f | 2454 | writel(1 << ap->port_no, mmio + HOST_IRQ_STAT); |
78cd52d0 | 2455 | |
1c954a4d TH |
2456 | /* turn IRQ back on */ |
2457 | writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); | |
78cd52d0 TH |
2458 | } |
2459 | ||
2460 | static void ahci_error_handler(struct ata_port *ap) | |
2461 | { | |
b51e9e5d | 2462 | if (!(ap->pflags & ATA_PFLAG_FROZEN)) { |
78cd52d0 | 2463 | /* restart engine */ |
4447d351 TH |
2464 | ahci_stop_engine(ap); |
2465 | ahci_start_engine(ap); | |
78cd52d0 TH |
2466 | } |
2467 | ||
a1efdaba | 2468 | sata_pmp_error_handler(ap); |
edc93052 TH |
2469 | } |
2470 | ||
78cd52d0 TH |
2471 | static void ahci_post_internal_cmd(struct ata_queued_cmd *qc) |
2472 | { | |
2473 | struct ata_port *ap = qc->ap; | |
2474 | ||
d2e75dff TH |
2475 | /* make DMA engine forget about the failed command */ |
2476 | if (qc->flags & ATA_QCFLAG_FAILED) | |
78d5ae39 | 2477 | ahci_kick_engine(ap); |
78cd52d0 TH |
2478 | } |
2479 | ||
d6ef3153 SH |
2480 | static void ahci_enable_fbs(struct ata_port *ap) |
2481 | { | |
2482 | struct ahci_port_priv *pp = ap->private_data; | |
2483 | void __iomem *port_mmio = ahci_port_base(ap); | |
2484 | u32 fbs; | |
2485 | int rc; | |
2486 | ||
2487 | if (!pp->fbs_supported) | |
2488 | return; | |
2489 | ||
2490 | fbs = readl(port_mmio + PORT_FBS); | |
2491 | if (fbs & PORT_FBS_EN) { | |
2492 | pp->fbs_enabled = true; | |
2493 | pp->fbs_last_dev = -1; /* initialization */ | |
2494 | return; | |
2495 | } | |
2496 | ||
2497 | rc = ahci_stop_engine(ap); | |
2498 | if (rc) | |
2499 | return; | |
2500 | ||
2501 | writel(fbs | PORT_FBS_EN, port_mmio + PORT_FBS); | |
2502 | fbs = readl(port_mmio + PORT_FBS); | |
2503 | if (fbs & PORT_FBS_EN) { | |
2504 | dev_printk(KERN_INFO, ap->host->dev, "FBS is enabled.\n"); | |
2505 | pp->fbs_enabled = true; | |
2506 | pp->fbs_last_dev = -1; /* initialization */ | |
2507 | } else | |
2508 | dev_printk(KERN_ERR, ap->host->dev, "Failed to enable FBS\n"); | |
2509 | ||
2510 | ahci_start_engine(ap); | |
2511 | } | |
2512 | ||
2513 | static void ahci_disable_fbs(struct ata_port *ap) | |
2514 | { | |
2515 | struct ahci_port_priv *pp = ap->private_data; | |
2516 | void __iomem *port_mmio = ahci_port_base(ap); | |
2517 | u32 fbs; | |
2518 | int rc; | |
2519 | ||
2520 | if (!pp->fbs_supported) | |
2521 | return; | |
2522 | ||
2523 | fbs = readl(port_mmio + PORT_FBS); | |
2524 | if ((fbs & PORT_FBS_EN) == 0) { | |
2525 | pp->fbs_enabled = false; | |
2526 | return; | |
2527 | } | |
2528 | ||
2529 | rc = ahci_stop_engine(ap); | |
2530 | if (rc) | |
2531 | return; | |
2532 | ||
2533 | writel(fbs & ~PORT_FBS_EN, port_mmio + PORT_FBS); | |
2534 | fbs = readl(port_mmio + PORT_FBS); | |
2535 | if (fbs & PORT_FBS_EN) | |
2536 | dev_printk(KERN_ERR, ap->host->dev, "Failed to disable FBS\n"); | |
2537 | else { | |
2538 | dev_printk(KERN_INFO, ap->host->dev, "FBS is disabled.\n"); | |
2539 | pp->fbs_enabled = false; | |
2540 | } | |
2541 | ||
2542 | ahci_start_engine(ap); | |
2543 | } | |
2544 | ||
7d50b60b TH |
2545 | static void ahci_pmp_attach(struct ata_port *ap) |
2546 | { | |
2547 | void __iomem *port_mmio = ahci_port_base(ap); | |
1c954a4d | 2548 | struct ahci_port_priv *pp = ap->private_data; |
7d50b60b TH |
2549 | u32 cmd; |
2550 | ||
2551 | cmd = readl(port_mmio + PORT_CMD); | |
2552 | cmd |= PORT_CMD_PMP; | |
2553 | writel(cmd, port_mmio + PORT_CMD); | |
1c954a4d | 2554 | |
d6ef3153 SH |
2555 | ahci_enable_fbs(ap); |
2556 | ||
1c954a4d TH |
2557 | pp->intr_mask |= PORT_IRQ_BAD_PMP; |
2558 | writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); | |
7d50b60b TH |
2559 | } |
2560 | ||
2561 | static void ahci_pmp_detach(struct ata_port *ap) | |
2562 | { | |
2563 | void __iomem *port_mmio = ahci_port_base(ap); | |
1c954a4d | 2564 | struct ahci_port_priv *pp = ap->private_data; |
7d50b60b TH |
2565 | u32 cmd; |
2566 | ||
d6ef3153 SH |
2567 | ahci_disable_fbs(ap); |
2568 | ||
7d50b60b TH |
2569 | cmd = readl(port_mmio + PORT_CMD); |
2570 | cmd &= ~PORT_CMD_PMP; | |
2571 | writel(cmd, port_mmio + PORT_CMD); | |
1c954a4d TH |
2572 | |
2573 | pp->intr_mask &= ~PORT_IRQ_BAD_PMP; | |
2574 | writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); | |
7d50b60b TH |
2575 | } |
2576 | ||
028a2596 AD |
2577 | static int ahci_port_resume(struct ata_port *ap) |
2578 | { | |
2579 | ahci_power_up(ap); | |
2580 | ahci_start_port(ap); | |
2581 | ||
071f44b1 | 2582 | if (sata_pmp_attached(ap)) |
7d50b60b TH |
2583 | ahci_pmp_attach(ap); |
2584 | else | |
2585 | ahci_pmp_detach(ap); | |
2586 | ||
028a2596 AD |
2587 | return 0; |
2588 | } | |
2589 | ||
438ac6d5 | 2590 | #ifdef CONFIG_PM |
c1332875 TH |
2591 | static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg) |
2592 | { | |
c1332875 TH |
2593 | const char *emsg = NULL; |
2594 | int rc; | |
2595 | ||
4447d351 | 2596 | rc = ahci_deinit_port(ap, &emsg); |
8e16f941 | 2597 | if (rc == 0) |
4447d351 | 2598 | ahci_power_down(ap); |
8e16f941 | 2599 | else { |
c1332875 | 2600 | ata_port_printk(ap, KERN_ERR, "%s (%d)\n", emsg, rc); |
df69c9c5 | 2601 | ahci_start_port(ap); |
c1332875 TH |
2602 | } |
2603 | ||
2604 | return rc; | |
2605 | } | |
2606 | ||
c1332875 TH |
2607 | static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) |
2608 | { | |
cca3974e | 2609 | struct ata_host *host = dev_get_drvdata(&pdev->dev); |
9b10ae86 | 2610 | struct ahci_host_priv *hpriv = host->private_data; |
0d5ff566 | 2611 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; |
c1332875 TH |
2612 | u32 ctl; |
2613 | ||
9b10ae86 TH |
2614 | if (mesg.event & PM_EVENT_SUSPEND && |
2615 | hpriv->flags & AHCI_HFLAG_NO_SUSPEND) { | |
2616 | dev_printk(KERN_ERR, &pdev->dev, | |
2617 | "BIOS update required for suspend/resume\n"); | |
2618 | return -EIO; | |
2619 | } | |
2620 | ||
3a2d5b70 | 2621 | if (mesg.event & PM_EVENT_SLEEP) { |
c1332875 TH |
2622 | /* AHCI spec rev1.1 section 8.3.3: |
2623 | * Software must disable interrupts prior to requesting a | |
2624 | * transition of the HBA to D3 state. | |
2625 | */ | |
2626 | ctl = readl(mmio + HOST_CTL); | |
2627 | ctl &= ~HOST_IRQ_EN; | |
2628 | writel(ctl, mmio + HOST_CTL); | |
2629 | readl(mmio + HOST_CTL); /* flush */ | |
2630 | } | |
2631 | ||
2632 | return ata_pci_device_suspend(pdev, mesg); | |
2633 | } | |
2634 | ||
2635 | static int ahci_pci_device_resume(struct pci_dev *pdev) | |
2636 | { | |
cca3974e | 2637 | struct ata_host *host = dev_get_drvdata(&pdev->dev); |
c1332875 TH |
2638 | int rc; |
2639 | ||
553c4aa6 TH |
2640 | rc = ata_pci_device_do_resume(pdev); |
2641 | if (rc) | |
2642 | return rc; | |
c1332875 TH |
2643 | |
2644 | if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { | |
4447d351 | 2645 | rc = ahci_reset_controller(host); |
c1332875 TH |
2646 | if (rc) |
2647 | return rc; | |
2648 | ||
4447d351 | 2649 | ahci_init_controller(host); |
c1332875 TH |
2650 | } |
2651 | ||
cca3974e | 2652 | ata_host_resume(host); |
c1332875 TH |
2653 | |
2654 | return 0; | |
2655 | } | |
438ac6d5 | 2656 | #endif |
c1332875 | 2657 | |
254950cd TH |
2658 | static int ahci_port_start(struct ata_port *ap) |
2659 | { | |
d6ef3153 | 2660 | struct ahci_host_priv *hpriv = ap->host->private_data; |
cca3974e | 2661 | struct device *dev = ap->host->dev; |
254950cd | 2662 | struct ahci_port_priv *pp; |
254950cd TH |
2663 | void *mem; |
2664 | dma_addr_t mem_dma; | |
d6ef3153 | 2665 | size_t dma_sz, rx_fis_sz; |
254950cd | 2666 | |
24dc5f33 | 2667 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
254950cd TH |
2668 | if (!pp) |
2669 | return -ENOMEM; | |
254950cd | 2670 | |
d6ef3153 SH |
2671 | /* check FBS capability */ |
2672 | if ((hpriv->cap & HOST_CAP_FBS) && sata_pmp_supported(ap)) { | |
2673 | void __iomem *port_mmio = ahci_port_base(ap); | |
2674 | u32 cmd = readl(port_mmio + PORT_CMD); | |
2675 | if (cmd & PORT_CMD_FBSCP) | |
2676 | pp->fbs_supported = true; | |
2677 | else | |
2678 | dev_printk(KERN_WARNING, dev, | |
2679 | "The port is not capable of FBS\n"); | |
2680 | } | |
2681 | ||
2682 | if (pp->fbs_supported) { | |
2683 | dma_sz = AHCI_PORT_PRIV_FBS_DMA_SZ; | |
2684 | rx_fis_sz = AHCI_RX_FIS_SZ * 16; | |
2685 | } else { | |
2686 | dma_sz = AHCI_PORT_PRIV_DMA_SZ; | |
2687 | rx_fis_sz = AHCI_RX_FIS_SZ; | |
2688 | } | |
2689 | ||
2690 | mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL); | |
24dc5f33 | 2691 | if (!mem) |
254950cd | 2692 | return -ENOMEM; |
d6ef3153 | 2693 | memset(mem, 0, dma_sz); |
254950cd TH |
2694 | |
2695 | /* | |
2696 | * First item in chunk of DMA memory: 32-slot command table, | |
2697 | * 32 bytes each in size | |
2698 | */ | |
2699 | pp->cmd_slot = mem; | |
2700 | pp->cmd_slot_dma = mem_dma; | |
2701 | ||
2702 | mem += AHCI_CMD_SLOT_SZ; | |
2703 | mem_dma += AHCI_CMD_SLOT_SZ; | |
2704 | ||
2705 | /* | |
2706 | * Second item: Received-FIS area | |
2707 | */ | |
2708 | pp->rx_fis = mem; | |
2709 | pp->rx_fis_dma = mem_dma; | |
2710 | ||
d6ef3153 SH |
2711 | mem += rx_fis_sz; |
2712 | mem_dma += rx_fis_sz; | |
254950cd TH |
2713 | |
2714 | /* | |
2715 | * Third item: data area for storing a single command | |
2716 | * and its scatter-gather table | |
2717 | */ | |
2718 | pp->cmd_tbl = mem; | |
2719 | pp->cmd_tbl_dma = mem_dma; | |
2720 | ||
a7384925 | 2721 | /* |
2dcb407e JG |
2722 | * Save off initial list of interrupts to be enabled. |
2723 | * This could be changed later | |
2724 | */ | |
a7384925 KCA |
2725 | pp->intr_mask = DEF_PORT_IRQ; |
2726 | ||
254950cd TH |
2727 | ap->private_data = pp; |
2728 | ||
df69c9c5 JG |
2729 | /* engage engines, captain */ |
2730 | return ahci_port_resume(ap); | |
254950cd TH |
2731 | } |
2732 | ||
2733 | static void ahci_port_stop(struct ata_port *ap) | |
2734 | { | |
0be0aa98 TH |
2735 | const char *emsg = NULL; |
2736 | int rc; | |
254950cd | 2737 | |
0be0aa98 | 2738 | /* de-initialize port */ |
4447d351 | 2739 | rc = ahci_deinit_port(ap, &emsg); |
0be0aa98 TH |
2740 | if (rc) |
2741 | ata_port_printk(ap, KERN_WARNING, "%s (%d)\n", emsg, rc); | |
254950cd TH |
2742 | } |
2743 | ||
4447d351 | 2744 | static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac) |
1da177e4 | 2745 | { |
1da177e4 | 2746 | int rc; |
1da177e4 | 2747 | |
1da177e4 | 2748 | if (using_dac && |
6a35528a YH |
2749 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
2750 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
1da177e4 | 2751 | if (rc) { |
284901a9 | 2752 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 | 2753 | if (rc) { |
a9524a76 JG |
2754 | dev_printk(KERN_ERR, &pdev->dev, |
2755 | "64-bit DMA enable failed\n"); | |
1da177e4 LT |
2756 | return rc; |
2757 | } | |
2758 | } | |
1da177e4 | 2759 | } else { |
284901a9 | 2760 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 | 2761 | if (rc) { |
a9524a76 JG |
2762 | dev_printk(KERN_ERR, &pdev->dev, |
2763 | "32-bit DMA enable failed\n"); | |
1da177e4 LT |
2764 | return rc; |
2765 | } | |
284901a9 | 2766 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 | 2767 | if (rc) { |
a9524a76 JG |
2768 | dev_printk(KERN_ERR, &pdev->dev, |
2769 | "32-bit consistent DMA enable failed\n"); | |
1da177e4 LT |
2770 | return rc; |
2771 | } | |
2772 | } | |
1da177e4 LT |
2773 | return 0; |
2774 | } | |
2775 | ||
4447d351 | 2776 | static void ahci_print_info(struct ata_host *host) |
1da177e4 | 2777 | { |
4447d351 TH |
2778 | struct ahci_host_priv *hpriv = host->private_data; |
2779 | struct pci_dev *pdev = to_pci_dev(host->dev); | |
2780 | void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; | |
4c521c8e | 2781 | u32 vers, cap, cap2, impl, speed; |
1da177e4 LT |
2782 | const char *speed_s; |
2783 | u16 cc; | |
2784 | const char *scc_s; | |
2785 | ||
2786 | vers = readl(mmio + HOST_VERSION); | |
2787 | cap = hpriv->cap; | |
4c521c8e | 2788 | cap2 = hpriv->cap2; |
1da177e4 LT |
2789 | impl = hpriv->port_map; |
2790 | ||
2791 | speed = (cap >> 20) & 0xf; | |
2792 | if (speed == 1) | |
2793 | speed_s = "1.5"; | |
2794 | else if (speed == 2) | |
2795 | speed_s = "3"; | |
8522ee25 SH |
2796 | else if (speed == 3) |
2797 | speed_s = "6"; | |
1da177e4 LT |
2798 | else |
2799 | speed_s = "?"; | |
2800 | ||
2801 | pci_read_config_word(pdev, 0x0a, &cc); | |
c9f89475 | 2802 | if (cc == PCI_CLASS_STORAGE_IDE) |
1da177e4 | 2803 | scc_s = "IDE"; |
c9f89475 | 2804 | else if (cc == PCI_CLASS_STORAGE_SATA) |
1da177e4 | 2805 | scc_s = "SATA"; |
c9f89475 | 2806 | else if (cc == PCI_CLASS_STORAGE_RAID) |
1da177e4 LT |
2807 | scc_s = "RAID"; |
2808 | else | |
2809 | scc_s = "unknown"; | |
2810 | ||
a9524a76 JG |
2811 | dev_printk(KERN_INFO, &pdev->dev, |
2812 | "AHCI %02x%02x.%02x%02x " | |
1da177e4 | 2813 | "%u slots %u ports %s Gbps 0x%x impl %s mode\n" |
2dcb407e | 2814 | , |
1da177e4 | 2815 | |
2dcb407e JG |
2816 | (vers >> 24) & 0xff, |
2817 | (vers >> 16) & 0xff, | |
2818 | (vers >> 8) & 0xff, | |
2819 | vers & 0xff, | |
1da177e4 LT |
2820 | |
2821 | ((cap >> 8) & 0x1f) + 1, | |
2822 | (cap & 0x1f) + 1, | |
2823 | speed_s, | |
2824 | impl, | |
2825 | scc_s); | |
2826 | ||
a9524a76 JG |
2827 | dev_printk(KERN_INFO, &pdev->dev, |
2828 | "flags: " | |
203ef6c4 | 2829 | "%s%s%s%s%s%s%s" |
18f7ba4c | 2830 | "%s%s%s%s%s%s%s" |
4c521c8e | 2831 | "%s%s%s%s%s%s\n" |
2dcb407e | 2832 | , |
1da177e4 | 2833 | |
4c521c8e RH |
2834 | cap & HOST_CAP_64 ? "64bit " : "", |
2835 | cap & HOST_CAP_NCQ ? "ncq " : "", | |
2836 | cap & HOST_CAP_SNTF ? "sntf " : "", | |
2837 | cap & HOST_CAP_MPS ? "ilck " : "", | |
2838 | cap & HOST_CAP_SSS ? "stag " : "", | |
2839 | cap & HOST_CAP_ALPM ? "pm " : "", | |
2840 | cap & HOST_CAP_LED ? "led " : "", | |
2841 | cap & HOST_CAP_CLO ? "clo " : "", | |
2842 | cap & HOST_CAP_ONLY ? "only " : "", | |
2843 | cap & HOST_CAP_PMP ? "pmp " : "", | |
2844 | cap & HOST_CAP_FBS ? "fbs " : "", | |
2845 | cap & HOST_CAP_PIO_MULTI ? "pio " : "", | |
2846 | cap & HOST_CAP_SSC ? "slum " : "", | |
2847 | cap & HOST_CAP_PART ? "part " : "", | |
2848 | cap & HOST_CAP_CCC ? "ccc " : "", | |
2849 | cap & HOST_CAP_EMS ? "ems " : "", | |
2850 | cap & HOST_CAP_SXS ? "sxs " : "", | |
2851 | cap2 & HOST_CAP2_APST ? "apst " : "", | |
2852 | cap2 & HOST_CAP2_NVMHCI ? "nvmp " : "", | |
2853 | cap2 & HOST_CAP2_BOH ? "boh " : "" | |
1da177e4 LT |
2854 | ); |
2855 | } | |
2856 | ||
edc93052 TH |
2857 | /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is |
2858 | * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't | |
2859 | * support PMP and the 4726 either directly exports the device | |
2860 | * attached to the first downstream port or acts as a hardware storage | |
2861 | * controller and emulate a single ATA device (can be RAID 0/1 or some | |
2862 | * other configuration). | |
2863 | * | |
2864 | * When there's no device attached to the first downstream port of the | |
2865 | * 4726, "Config Disk" appears, which is a pseudo ATA device to | |
2866 | * configure the 4726. However, ATA emulation of the device is very | |
2867 | * lame. It doesn't send signature D2H Reg FIS after the initial | |
2868 | * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues. | |
2869 | * | |
2870 | * The following function works around the problem by always using | |
2871 | * hardreset on the port and not depending on receiving signature FIS | |
2872 | * afterward. If signature FIS isn't received soon, ATA class is | |
2873 | * assumed without follow-up softreset. | |
2874 | */ | |
2875 | static void ahci_p5wdh_workaround(struct ata_host *host) | |
2876 | { | |
2877 | static struct dmi_system_id sysids[] = { | |
2878 | { | |
2879 | .ident = "P5W DH Deluxe", | |
2880 | .matches = { | |
2881 | DMI_MATCH(DMI_SYS_VENDOR, | |
2882 | "ASUSTEK COMPUTER INC"), | |
2883 | DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"), | |
2884 | }, | |
2885 | }, | |
2886 | { } | |
2887 | }; | |
2888 | struct pci_dev *pdev = to_pci_dev(host->dev); | |
2889 | ||
2890 | if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) && | |
2891 | dmi_check_system(sysids)) { | |
2892 | struct ata_port *ap = host->ports[1]; | |
2893 | ||
2894 | dev_printk(KERN_INFO, &pdev->dev, "enabling ASUS P5W DH " | |
2895 | "Deluxe on-board SIMG4726 workaround\n"); | |
2896 | ||
2897 | ap->ops = &ahci_p5wdh_ops; | |
2898 | ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA; | |
2899 | } | |
2900 | } | |
2901 | ||
2fcad9d2 TH |
2902 | /* only some SB600 ahci controllers can do 64bit DMA */ |
2903 | static bool ahci_sb600_enable_64bit(struct pci_dev *pdev) | |
58a09b38 SH |
2904 | { |
2905 | static const struct dmi_system_id sysids[] = { | |
03d783bf TH |
2906 | /* |
2907 | * The oldest version known to be broken is 0901 and | |
2908 | * working is 1501 which was released on 2007-10-26. | |
2fcad9d2 TH |
2909 | * Enable 64bit DMA on 1501 and anything newer. |
2910 | * | |
03d783bf TH |
2911 | * Please read bko#9412 for more info. |
2912 | */ | |
58a09b38 SH |
2913 | { |
2914 | .ident = "ASUS M2A-VM", | |
2915 | .matches = { | |
2916 | DMI_MATCH(DMI_BOARD_VENDOR, | |
2917 | "ASUSTeK Computer INC."), | |
2918 | DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"), | |
2919 | }, | |
03d783bf | 2920 | .driver_data = "20071026", /* yyyymmdd */ |
58a09b38 | 2921 | }, |
e65cc194 MN |
2922 | /* |
2923 | * All BIOS versions for the MSI K9A2 Platinum (MS-7376) | |
2924 | * support 64bit DMA. | |
2925 | * | |
2926 | * BIOS versions earlier than 1.5 had the Manufacturer DMI | |
2927 | * fields as "MICRO-STAR INTERANTIONAL CO.,LTD". | |
2928 | * This spelling mistake was fixed in BIOS version 1.5, so | |
2929 | * 1.5 and later have the Manufacturer as | |
2930 | * "MICRO-STAR INTERNATIONAL CO.,LTD". | |
2931 | * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER". | |
2932 | * | |
2933 | * BIOS versions earlier than 1.9 had a Board Product Name | |
2934 | * DMI field of "MS-7376". This was changed to be | |
2935 | * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still | |
2936 | * match on DMI_BOARD_NAME of "MS-7376". | |
2937 | */ | |
2938 | { | |
2939 | .ident = "MSI K9A2 Platinum", | |
2940 | .matches = { | |
2941 | DMI_MATCH(DMI_BOARD_VENDOR, | |
2942 | "MICRO-STAR INTER"), | |
2943 | DMI_MATCH(DMI_BOARD_NAME, "MS-7376"), | |
2944 | }, | |
2945 | }, | |
58a09b38 SH |
2946 | { } |
2947 | }; | |
03d783bf | 2948 | const struct dmi_system_id *match; |
2fcad9d2 TH |
2949 | int year, month, date; |
2950 | char buf[9]; | |
58a09b38 | 2951 | |
03d783bf | 2952 | match = dmi_first_match(sysids); |
58a09b38 | 2953 | if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) || |
03d783bf | 2954 | !match) |
58a09b38 SH |
2955 | return false; |
2956 | ||
e65cc194 MN |
2957 | if (!match->driver_data) |
2958 | goto enable_64bit; | |
2959 | ||
2fcad9d2 TH |
2960 | dmi_get_date(DMI_BIOS_DATE, &year, &month, &date); |
2961 | snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date); | |
03d783bf | 2962 | |
e65cc194 MN |
2963 | if (strcmp(buf, match->driver_data) >= 0) |
2964 | goto enable_64bit; | |
2965 | else { | |
03d783bf TH |
2966 | dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, " |
2967 | "forcing 32bit DMA, update BIOS\n", match->ident); | |
2fcad9d2 TH |
2968 | return false; |
2969 | } | |
e65cc194 MN |
2970 | |
2971 | enable_64bit: | |
2972 | dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n", | |
2973 | match->ident); | |
2974 | return true; | |
58a09b38 SH |
2975 | } |
2976 | ||
1fd68434 RW |
2977 | static bool ahci_broken_system_poweroff(struct pci_dev *pdev) |
2978 | { | |
2979 | static const struct dmi_system_id broken_systems[] = { | |
2980 | { | |
2981 | .ident = "HP Compaq nx6310", | |
2982 | .matches = { | |
2983 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
2984 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"), | |
2985 | }, | |
2986 | /* PCI slot number of the controller */ | |
2987 | .driver_data = (void *)0x1FUL, | |
2988 | }, | |
d2f9c061 MR |
2989 | { |
2990 | .ident = "HP Compaq 6720s", | |
2991 | .matches = { | |
2992 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
2993 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"), | |
2994 | }, | |
2995 | /* PCI slot number of the controller */ | |
2996 | .driver_data = (void *)0x1FUL, | |
2997 | }, | |
1fd68434 RW |
2998 | |
2999 | { } /* terminate list */ | |
3000 | }; | |
3001 | const struct dmi_system_id *dmi = dmi_first_match(broken_systems); | |
3002 | ||
3003 | if (dmi) { | |
3004 | unsigned long slot = (unsigned long)dmi->driver_data; | |
3005 | /* apply the quirk only to on-board controllers */ | |
3006 | return slot == PCI_SLOT(pdev->devfn); | |
3007 | } | |
3008 | ||
3009 | return false; | |
3010 | } | |
3011 | ||
9b10ae86 TH |
3012 | static bool ahci_broken_suspend(struct pci_dev *pdev) |
3013 | { | |
3014 | static const struct dmi_system_id sysids[] = { | |
3015 | /* | |
3016 | * On HP dv[4-6] and HDX18 with earlier BIOSen, link | |
3017 | * to the harddisk doesn't become online after | |
3018 | * resuming from STR. Warn and fail suspend. | |
3019 | */ | |
3020 | { | |
3021 | .ident = "dv4", | |
3022 | .matches = { | |
3023 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
3024 | DMI_MATCH(DMI_PRODUCT_NAME, | |
3025 | "HP Pavilion dv4 Notebook PC"), | |
3026 | }, | |
3027 | .driver_data = "F.30", /* cutoff BIOS version */ | |
3028 | }, | |
3029 | { | |
3030 | .ident = "dv5", | |
3031 | .matches = { | |
3032 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
3033 | DMI_MATCH(DMI_PRODUCT_NAME, | |
3034 | "HP Pavilion dv5 Notebook PC"), | |
3035 | }, | |
3036 | .driver_data = "F.16", /* cutoff BIOS version */ | |
3037 | }, | |
3038 | { | |
3039 | .ident = "dv6", | |
3040 | .matches = { | |
3041 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
3042 | DMI_MATCH(DMI_PRODUCT_NAME, | |
3043 | "HP Pavilion dv6 Notebook PC"), | |
3044 | }, | |
3045 | .driver_data = "F.21", /* cutoff BIOS version */ | |
3046 | }, | |
3047 | { | |
3048 | .ident = "HDX18", | |
3049 | .matches = { | |
3050 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
3051 | DMI_MATCH(DMI_PRODUCT_NAME, | |
3052 | "HP HDX18 Notebook PC"), | |
3053 | }, | |
3054 | .driver_data = "F.23", /* cutoff BIOS version */ | |
3055 | }, | |
cedc9bf9 TH |
3056 | /* |
3057 | * Acer eMachines G725 has the same problem. BIOS | |
3058 | * V1.03 is known to be broken. V3.04 is known to | |
3059 | * work. Inbetween, there are V1.06, V2.06 and V3.03 | |
3060 | * that we don't have much idea about. For now, | |
3061 | * blacklist anything older than V3.04. | |
3062 | */ | |
3063 | { | |
3064 | .ident = "G725", | |
3065 | .matches = { | |
3066 | DMI_MATCH(DMI_SYS_VENDOR, "eMachines"), | |
3067 | DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"), | |
3068 | }, | |
3069 | .driver_data = "V3.04", /* cutoff BIOS version */ | |
3070 | }, | |
9b10ae86 TH |
3071 | { } /* terminate list */ |
3072 | }; | |
3073 | const struct dmi_system_id *dmi = dmi_first_match(sysids); | |
3074 | const char *ver; | |
3075 | ||
3076 | if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2)) | |
3077 | return false; | |
3078 | ||
3079 | ver = dmi_get_system_info(DMI_BIOS_VERSION); | |
3080 | ||
3081 | return !ver || strcmp(ver, dmi->driver_data) < 0; | |
3082 | } | |
3083 | ||
5594639a TH |
3084 | static bool ahci_broken_online(struct pci_dev *pdev) |
3085 | { | |
3086 | #define ENCODE_BUSDEVFN(bus, slot, func) \ | |
3087 | (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func))) | |
3088 | static const struct dmi_system_id sysids[] = { | |
3089 | /* | |
3090 | * There are several gigabyte boards which use | |
3091 | * SIMG5723s configured as hardware RAID. Certain | |
3092 | * 5723 firmware revisions shipped there keep the link | |
3093 | * online but fail to answer properly to SRST or | |
3094 | * IDENTIFY when no device is attached downstream | |
3095 | * causing libata to retry quite a few times leading | |
3096 | * to excessive detection delay. | |
3097 | * | |
3098 | * As these firmwares respond to the second reset try | |
3099 | * with invalid device signature, considering unknown | |
3100 | * sig as offline works around the problem acceptably. | |
3101 | */ | |
3102 | { | |
3103 | .ident = "EP45-DQ6", | |
3104 | .matches = { | |
3105 | DMI_MATCH(DMI_BOARD_VENDOR, | |
3106 | "Gigabyte Technology Co., Ltd."), | |
3107 | DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"), | |
3108 | }, | |
3109 | .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0), | |
3110 | }, | |
3111 | { | |
3112 | .ident = "EP45-DS5", | |
3113 | .matches = { | |
3114 | DMI_MATCH(DMI_BOARD_VENDOR, | |
3115 | "Gigabyte Technology Co., Ltd."), | |
3116 | DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"), | |
3117 | }, | |
3118 | .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0), | |
3119 | }, | |
3120 | { } /* terminate list */ | |
3121 | }; | |
3122 | #undef ENCODE_BUSDEVFN | |
3123 | const struct dmi_system_id *dmi = dmi_first_match(sysids); | |
3124 | unsigned int val; | |
3125 | ||
3126 | if (!dmi) | |
3127 | return false; | |
3128 | ||
3129 | val = (unsigned long)dmi->driver_data; | |
3130 | ||
3131 | return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff); | |
3132 | } | |
3133 | ||
8e513217 | 3134 | #ifdef CONFIG_ATA_ACPI |
f80ae7e4 TH |
3135 | static void ahci_gtf_filter_workaround(struct ata_host *host) |
3136 | { | |
3137 | static const struct dmi_system_id sysids[] = { | |
3138 | /* | |
3139 | * Aspire 3810T issues a bunch of SATA enable commands | |
3140 | * via _GTF including an invalid one and one which is | |
3141 | * rejected by the device. Among the successful ones | |
3142 | * is FPDMA non-zero offset enable which when enabled | |
3143 | * only on the drive side leads to NCQ command | |
3144 | * failures. Filter it out. | |
3145 | */ | |
3146 | { | |
3147 | .ident = "Aspire 3810T", | |
3148 | .matches = { | |
3149 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
3150 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"), | |
3151 | }, | |
3152 | .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET, | |
3153 | }, | |
3154 | { } | |
3155 | }; | |
3156 | const struct dmi_system_id *dmi = dmi_first_match(sysids); | |
3157 | unsigned int filter; | |
3158 | int i; | |
3159 | ||
3160 | if (!dmi) | |
3161 | return; | |
3162 | ||
3163 | filter = (unsigned long)dmi->driver_data; | |
3164 | dev_printk(KERN_INFO, host->dev, | |
3165 | "applying extra ACPI _GTF filter 0x%x for %s\n", | |
3166 | filter, dmi->ident); | |
3167 | ||
3168 | for (i = 0; i < host->n_ports; i++) { | |
3169 | struct ata_port *ap = host->ports[i]; | |
3170 | struct ata_link *link; | |
3171 | struct ata_device *dev; | |
3172 | ||
3173 | ata_for_each_link(link, ap, EDGE) | |
3174 | ata_for_each_dev(dev, link, ALL) | |
3175 | dev->gtf_filter |= filter; | |
3176 | } | |
3177 | } | |
8e513217 MT |
3178 | #else |
3179 | static inline void ahci_gtf_filter_workaround(struct ata_host *host) | |
3180 | {} | |
3181 | #endif | |
f80ae7e4 | 3182 | |
24dc5f33 | 3183 | static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 LT |
3184 | { |
3185 | static int printed_version; | |
e297d99e TH |
3186 | unsigned int board_id = ent->driver_data; |
3187 | struct ata_port_info pi = ahci_port_info[board_id]; | |
4447d351 | 3188 | const struct ata_port_info *ppi[] = { &pi, NULL }; |
24dc5f33 | 3189 | struct device *dev = &pdev->dev; |
1da177e4 | 3190 | struct ahci_host_priv *hpriv; |
4447d351 | 3191 | struct ata_host *host; |
837f5f8f | 3192 | int n_ports, i, rc; |
1da177e4 LT |
3193 | |
3194 | VPRINTK("ENTER\n"); | |
3195 | ||
12fad3f9 TH |
3196 | WARN_ON(ATA_MAX_QUEUE > AHCI_MAX_CMDS); |
3197 | ||
1da177e4 | 3198 | if (!printed_version++) |
a9524a76 | 3199 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
1da177e4 | 3200 | |
5b66c829 AC |
3201 | /* The AHCI driver can only drive the SATA ports, the PATA driver |
3202 | can drive them all so if both drivers are selected make sure | |
3203 | AHCI stays out of the way */ | |
3204 | if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) | |
3205 | return -ENODEV; | |
3206 | ||
7a02267e MN |
3207 | /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode. |
3208 | * At the moment, we can only use the AHCI mode. Let the users know | |
3209 | * that for SAS drives they're out of luck. | |
3210 | */ | |
3211 | if (pdev->vendor == PCI_VENDOR_ID_PROMISE) | |
3212 | dev_printk(KERN_INFO, &pdev->dev, "PDC42819 " | |
3213 | "can only drive SATA devices with this driver\n"); | |
3214 | ||
4447d351 | 3215 | /* acquire resources */ |
24dc5f33 | 3216 | rc = pcim_enable_device(pdev); |
1da177e4 LT |
3217 | if (rc) |
3218 | return rc; | |
3219 | ||
dea55137 TH |
3220 | /* AHCI controllers often implement SFF compatible interface. |
3221 | * Grab all PCI BARs just in case. | |
3222 | */ | |
3223 | rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); | |
0d5ff566 | 3224 | if (rc == -EBUSY) |
24dc5f33 | 3225 | pcim_pin_device(pdev); |
0d5ff566 | 3226 | if (rc) |
24dc5f33 | 3227 | return rc; |
1da177e4 | 3228 | |
c4f7792c TH |
3229 | if (pdev->vendor == PCI_VENDOR_ID_INTEL && |
3230 | (pdev->device == 0x2652 || pdev->device == 0x2653)) { | |
3231 | u8 map; | |
3232 | ||
3233 | /* ICH6s share the same PCI ID for both piix and ahci | |
3234 | * modes. Enabling ahci mode while MAP indicates | |
3235 | * combined mode is a bad idea. Yield to ata_piix. | |
3236 | */ | |
3237 | pci_read_config_byte(pdev, ICH_MAP, &map); | |
3238 | if (map & 0x3) { | |
3239 | dev_printk(KERN_INFO, &pdev->dev, "controller is in " | |
3240 | "combined mode, can't enable AHCI mode\n"); | |
3241 | return -ENODEV; | |
3242 | } | |
3243 | } | |
3244 | ||
24dc5f33 TH |
3245 | hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); |
3246 | if (!hpriv) | |
3247 | return -ENOMEM; | |
417a1a6d TH |
3248 | hpriv->flags |= (unsigned long)pi.private_data; |
3249 | ||
e297d99e TH |
3250 | /* MCP65 revision A1 and A2 can't do MSI */ |
3251 | if (board_id == board_ahci_mcp65 && | |
3252 | (pdev->revision == 0xa1 || pdev->revision == 0xa2)) | |
3253 | hpriv->flags |= AHCI_HFLAG_NO_MSI; | |
3254 | ||
e427fe04 SH |
3255 | /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */ |
3256 | if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) | |
3257 | hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; | |
3258 | ||
2fcad9d2 TH |
3259 | /* only some SB600s can do 64bit DMA */ |
3260 | if (ahci_sb600_enable_64bit(pdev)) | |
3261 | hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY; | |
58a09b38 | 3262 | |
31b239ad TH |
3263 | if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev)) |
3264 | pci_intx(pdev, 1); | |
1da177e4 | 3265 | |
4447d351 | 3266 | /* save initial config */ |
417a1a6d | 3267 | ahci_save_initial_config(pdev, hpriv); |
1da177e4 | 3268 | |
4447d351 | 3269 | /* prepare host */ |
453d3131 RH |
3270 | if (hpriv->cap & HOST_CAP_NCQ) { |
3271 | pi.flags |= ATA_FLAG_NCQ; | |
3272 | /* Auto-activate optimization is supposed to be supported on | |
3273 | all AHCI controllers indicating NCQ support, but it seems | |
3274 | to be broken at least on some NVIDIA MCP79 chipsets. | |
3275 | Until we get info on which NVIDIA chipsets don't have this | |
3276 | issue, if any, disable AA on all NVIDIA AHCIs. */ | |
3277 | if (pdev->vendor != PCI_VENDOR_ID_NVIDIA) | |
3278 | pi.flags |= ATA_FLAG_FPDMA_AA; | |
3279 | } | |
1da177e4 | 3280 | |
7d50b60b TH |
3281 | if (hpriv->cap & HOST_CAP_PMP) |
3282 | pi.flags |= ATA_FLAG_PMP; | |
3283 | ||
18f7ba4c KCA |
3284 | if (ahci_em_messages && (hpriv->cap & HOST_CAP_EMS)) { |
3285 | u8 messages; | |
3286 | void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; | |
3287 | u32 em_loc = readl(mmio + HOST_EM_LOC); | |
3288 | u32 em_ctl = readl(mmio + HOST_EM_CTL); | |
3289 | ||
87943acf | 3290 | messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16; |
18f7ba4c KCA |
3291 | |
3292 | /* we only support LED message type right now */ | |
3293 | if ((messages & 0x01) && (ahci_em_messages == 1)) { | |
3294 | /* store em_loc */ | |
3295 | hpriv->em_loc = ((em_loc >> 16) * 4); | |
3296 | pi.flags |= ATA_FLAG_EM; | |
3297 | if (!(em_ctl & EM_CTL_ALHD)) | |
3298 | pi.flags |= ATA_FLAG_SW_ACTIVITY; | |
3299 | } | |
3300 | } | |
3301 | ||
1fd68434 RW |
3302 | if (ahci_broken_system_poweroff(pdev)) { |
3303 | pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN; | |
3304 | dev_info(&pdev->dev, | |
3305 | "quirky BIOS, skipping spindown on poweroff\n"); | |
3306 | } | |
3307 | ||
9b10ae86 TH |
3308 | if (ahci_broken_suspend(pdev)) { |
3309 | hpriv->flags |= AHCI_HFLAG_NO_SUSPEND; | |
3310 | dev_printk(KERN_WARNING, &pdev->dev, | |
3311 | "BIOS update required for suspend/resume\n"); | |
3312 | } | |
3313 | ||
5594639a TH |
3314 | if (ahci_broken_online(pdev)) { |
3315 | hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE; | |
3316 | dev_info(&pdev->dev, | |
3317 | "online status unreliable, applying workaround\n"); | |
3318 | } | |
3319 | ||
837f5f8f TH |
3320 | /* CAP.NP sometimes indicate the index of the last enabled |
3321 | * port, at other times, that of the last possible port, so | |
3322 | * determining the maximum port number requires looking at | |
3323 | * both CAP.NP and port_map. | |
3324 | */ | |
3325 | n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map)); | |
3326 | ||
3327 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); | |
4447d351 TH |
3328 | if (!host) |
3329 | return -ENOMEM; | |
3330 | host->iomap = pcim_iomap_table(pdev); | |
3331 | host->private_data = hpriv; | |
3332 | ||
f3d7f23f | 3333 | if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss) |
886ad09f | 3334 | host->flags |= ATA_HOST_PARALLEL_SCAN; |
f3d7f23f AV |
3335 | else |
3336 | printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n"); | |
886ad09f | 3337 | |
18f7ba4c KCA |
3338 | if (pi.flags & ATA_FLAG_EM) |
3339 | ahci_reset_em(host); | |
3340 | ||
4447d351 | 3341 | for (i = 0; i < host->n_ports; i++) { |
dab632e8 | 3342 | struct ata_port *ap = host->ports[i]; |
4447d351 | 3343 | |
cbcdd875 TH |
3344 | ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar"); |
3345 | ata_port_pbar_desc(ap, AHCI_PCI_BAR, | |
3346 | 0x100 + ap->port_no * 0x80, "port"); | |
3347 | ||
31556594 KCA |
3348 | /* set initial link pm policy */ |
3349 | ap->pm_policy = NOT_AVAILABLE; | |
3350 | ||
18f7ba4c KCA |
3351 | /* set enclosure management message type */ |
3352 | if (ap->flags & ATA_FLAG_EM) | |
3353 | ap->em_message_type = ahci_em_messages; | |
3354 | ||
3355 | ||
dab632e8 | 3356 | /* disabled/not-implemented port */ |
350756f6 | 3357 | if (!(hpriv->port_map & (1 << i))) |
dab632e8 | 3358 | ap->ops = &ata_dummy_port_ops; |
4447d351 | 3359 | } |
d447df14 | 3360 | |
edc93052 TH |
3361 | /* apply workaround for ASUS P5W DH Deluxe mainboard */ |
3362 | ahci_p5wdh_workaround(host); | |
3363 | ||
f80ae7e4 TH |
3364 | /* apply gtf filter quirk */ |
3365 | ahci_gtf_filter_workaround(host); | |
3366 | ||
4447d351 TH |
3367 | /* initialize adapter */ |
3368 | rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64); | |
1da177e4 | 3369 | if (rc) |
24dc5f33 | 3370 | return rc; |
1da177e4 | 3371 | |
4447d351 TH |
3372 | rc = ahci_reset_controller(host); |
3373 | if (rc) | |
3374 | return rc; | |
1da177e4 | 3375 | |
4447d351 TH |
3376 | ahci_init_controller(host); |
3377 | ahci_print_info(host); | |
1da177e4 | 3378 | |
4447d351 TH |
3379 | pci_set_master(pdev); |
3380 | return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED, | |
3381 | &ahci_sht); | |
907f4678 | 3382 | } |
1da177e4 LT |
3383 | |
3384 | static int __init ahci_init(void) | |
3385 | { | |
b7887196 | 3386 | return pci_register_driver(&ahci_pci_driver); |
1da177e4 LT |
3387 | } |
3388 | ||
1da177e4 LT |
3389 | static void __exit ahci_exit(void) |
3390 | { | |
3391 | pci_unregister_driver(&ahci_pci_driver); | |
3392 | } | |
3393 | ||
3394 | ||
3395 | MODULE_AUTHOR("Jeff Garzik"); | |
3396 | MODULE_DESCRIPTION("AHCI SATA low-level driver"); | |
3397 | MODULE_LICENSE("GPL"); | |
3398 | MODULE_DEVICE_TABLE(pci, ahci_pci_tbl); | |
6885433c | 3399 | MODULE_VERSION(DRV_VERSION); |
1da177e4 LT |
3400 | |
3401 | module_init(ahci_init); | |
3402 | module_exit(ahci_exit); |