2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * Copyright (c) 2009-2012 Alexander Motin <mav@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 /* ATA register defines */
33 #define ATA_DATA 0 /* (RW) data */
35 #define ATA_FEATURE 1 /* (W) feature */
36 #define ATA_F_DMA 0x01 /* enable DMA */
37 #define ATA_F_OVL 0x02 /* enable overlap */
39 #define ATA_COUNT 2 /* (W) sector count */
41 #define ATA_SECTOR 3 /* (RW) sector # */
42 #define ATA_CYL_LSB 4 /* (RW) cylinder# LSB */
43 #define ATA_CYL_MSB 5 /* (RW) cylinder# MSB */
44 #define ATA_DRIVE 6 /* (W) Sector/Drive/Head */
45 #define ATA_D_LBA 0x40 /* use LBA addressing */
46 #define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */
48 #define ATA_COMMAND 7 /* (W) command */
50 #define ATA_ERROR 8 /* (R) error */
51 #define ATA_E_ILI 0x01 /* illegal length */
52 #define ATA_E_NM 0x02 /* no media */
53 #define ATA_E_ABORT 0x04 /* command aborted */
54 #define ATA_E_MCR 0x08 /* media change request */
55 #define ATA_E_IDNF 0x10 /* ID not found */
56 #define ATA_E_MC 0x20 /* media changed */
57 #define ATA_E_UNC 0x40 /* uncorrectable data */
58 #define ATA_E_ICRC 0x80 /* UDMA crc error */
59 #define ATA_E_ATAPI_SENSE_MASK 0xf0 /* ATAPI sense key mask */
61 #define ATA_IREASON 9 /* (R) interrupt reason */
62 #define ATA_I_CMD 0x01 /* cmd (1) | data (0) */
63 #define ATA_I_IN 0x02 /* read (1) | write (0) */
64 #define ATA_I_RELEASE 0x04 /* released bus (1) */
65 #define ATA_I_TAGMASK 0xf8 /* tag mask */
67 #define ATA_STATUS 10 /* (R) status */
68 #define ATA_ALTSTAT 11 /* (R) alternate status */
69 #define ATA_S_ERROR 0x01 /* error */
70 #define ATA_S_INDEX 0x02 /* index */
71 #define ATA_S_CORR 0x04 /* data corrected */
72 #define ATA_S_DRQ 0x08 /* data request */
73 #define ATA_S_DSC 0x10 /* drive seek completed */
74 #define ATA_S_SERVICE 0x10 /* drive needs service */
75 #define ATA_S_DWF 0x20 /* drive write fault */
76 #define ATA_S_DMA 0x20 /* DMA ready */
77 #define ATA_S_READY 0x40 /* drive ready */
78 #define ATA_S_BUSY 0x80 /* busy */
80 #define ATA_CONTROL 12 /* (W) control */
81 #define ATA_A_IDS 0x02 /* disable interrupts */
82 #define ATA_A_RESET 0x04 /* RESET controller */
83 #define ATA_A_4BIT 0x08 /* 4 head bits */
84 #define ATA_A_HOB 0x80 /* High Order Byte enable */
86 /* SATA register defines */
87 #define ATA_SSTATUS 13
88 #define ATA_SS_DET_MASK 0x0000000f
89 #define ATA_SS_DET_NO_DEVICE 0x00000000
90 #define ATA_SS_DET_DEV_PRESENT 0x00000001
91 #define ATA_SS_DET_PHY_ONLINE 0x00000003
92 #define ATA_SS_DET_PHY_OFFLINE 0x00000004
94 #define ATA_SS_SPD_MASK 0x000000f0
95 #define ATA_SS_SPD_NO_SPEED 0x00000000
96 #define ATA_SS_SPD_GEN1 0x00000010
97 #define ATA_SS_SPD_GEN2 0x00000020
98 #define ATA_SS_SPD_GEN3 0x00000030
100 #define ATA_SS_IPM_MASK 0x00000f00
101 #define ATA_SS_IPM_NO_DEVICE 0x00000000
102 #define ATA_SS_IPM_ACTIVE 0x00000100
103 #define ATA_SS_IPM_PARTIAL 0x00000200
104 #define ATA_SS_IPM_SLUMBER 0x00000600
105 #define ATA_SS_IPM_DEVSLEEP 0x00000800
107 #define ATA_SERROR 14
108 #define ATA_SE_DATA_CORRECTED 0x00000001
109 #define ATA_SE_COMM_CORRECTED 0x00000002
110 #define ATA_SE_DATA_ERR 0x00000100
111 #define ATA_SE_COMM_ERR 0x00000200
112 #define ATA_SE_PROT_ERR 0x00000400
113 #define ATA_SE_HOST_ERR 0x00000800
114 #define ATA_SE_PHY_CHANGED 0x00010000
115 #define ATA_SE_PHY_IERROR 0x00020000
116 #define ATA_SE_COMM_WAKE 0x00040000
117 #define ATA_SE_DECODE_ERR 0x00080000
118 #define ATA_SE_PARITY_ERR 0x00100000
119 #define ATA_SE_CRC_ERR 0x00200000
120 #define ATA_SE_HANDSHAKE_ERR 0x00400000
121 #define ATA_SE_LINKSEQ_ERR 0x00800000
122 #define ATA_SE_TRANSPORT_ERR 0x01000000
123 #define ATA_SE_UNKNOWN_FIS 0x02000000
124 #define ATA_SE_EXCHANGED 0x04000000
126 #define ATA_SCONTROL 15
127 #define ATA_SC_DET_MASK 0x0000000f
128 #define ATA_SC_DET_IDLE 0x00000000
129 #define ATA_SC_DET_RESET 0x00000001
130 #define ATA_SC_DET_DISABLE 0x00000004
132 #define ATA_SC_SPD_MASK 0x000000f0
133 #define ATA_SC_SPD_NO_SPEED 0x00000000
134 #define ATA_SC_SPD_SPEED_GEN1 0x00000010
135 #define ATA_SC_SPD_SPEED_GEN2 0x00000020
136 #define ATA_SC_SPD_SPEED_GEN3 0x00000030
138 #define ATA_SC_IPM_MASK 0x00000f00
139 #define ATA_SC_IPM_NONE 0x00000000
140 #define ATA_SC_IPM_DIS_PARTIAL 0x00000100
141 #define ATA_SC_IPM_DIS_SLUMBER 0x00000200
142 #define ATA_SC_IPM_DIS_DEVSLEEP 0x00000400
144 #define ATA_SACTIVE 16
146 #define AHCI_MAX_PORTS 32
147 #define AHCI_MAX_SLOTS 32
148 #define AHCI_MAX_IRQS 16
150 /* SATA AHCI v1.0 register defines */
151 #define AHCI_CAP 0x00
152 #define AHCI_CAP_NPMASK 0x0000001f
153 #define AHCI_CAP_SXS 0x00000020
154 #define AHCI_CAP_EMS 0x00000040
155 #define AHCI_CAP_CCCS 0x00000080
156 #define AHCI_CAP_NCS 0x00001F00
157 #define AHCI_CAP_NCS_SHIFT 8
158 #define AHCI_CAP_PSC 0x00002000
159 #define AHCI_CAP_SSC 0x00004000
160 #define AHCI_CAP_PMD 0x00008000
161 #define AHCI_CAP_FBSS 0x00010000
162 #define AHCI_CAP_SPM 0x00020000
163 #define AHCI_CAP_SAM 0x00080000
164 #define AHCI_CAP_ISS 0x00F00000
165 #define AHCI_CAP_ISS_SHIFT 20
166 #define AHCI_CAP_SCLO 0x01000000
167 #define AHCI_CAP_SAL 0x02000000
168 #define AHCI_CAP_SALP 0x04000000
169 #define AHCI_CAP_SSS 0x08000000
170 #define AHCI_CAP_SMPS 0x10000000
171 #define AHCI_CAP_SSNTF 0x20000000
172 #define AHCI_CAP_SNCQ 0x40000000
173 #define AHCI_CAP_64BIT 0x80000000
175 #define AHCI_GHC 0x04
176 #define AHCI_GHC_AE 0x80000000
177 #define AHCI_GHC_MRSM 0x00000004
178 #define AHCI_GHC_IE 0x00000002
179 #define AHCI_GHC_HR 0x00000001
185 #define AHCI_CCCC 0x14
186 #define AHCI_CCCC_TV_MASK 0xffff0000
187 #define AHCI_CCCC_TV_SHIFT 16
188 #define AHCI_CCCC_CC_MASK 0x0000ff00
189 #define AHCI_CCCC_CC_SHIFT 8
190 #define AHCI_CCCC_INT_MASK 0x000000f8
191 #define AHCI_CCCC_INT_SHIFT 3
192 #define AHCI_CCCC_EN 0x00000001
193 #define AHCI_CCCP 0x18
195 #define AHCI_EM_LOC 0x1C
196 #define AHCI_EM_CTL 0x20
197 #define AHCI_EM_MR 0x00000001
198 #define AHCI_EM_TM 0x00000100
199 #define AHCI_EM_RST 0x00000200
200 #define AHCI_EM_LED 0x00010000
201 #define AHCI_EM_SAFTE 0x00020000
202 #define AHCI_EM_SES2 0x00040000
203 #define AHCI_EM_SGPIO 0x00080000
204 #define AHCI_EM_SMB 0x01000000
205 #define AHCI_EM_XMT 0x02000000
206 #define AHCI_EM_ALHD 0x04000000
207 #define AHCI_EM_PM 0x08000000
209 #define AHCI_CAP2 0x24
210 #define AHCI_CAP2_BOH 0x00000001
211 #define AHCI_CAP2_NVMP 0x00000002
212 #define AHCI_CAP2_APST 0x00000004
213 #define AHCI_CAP2_SDS 0x00000008
214 #define AHCI_CAP2_SADM 0x00000010
215 #define AHCI_CAP2_DESO 0x00000020
217 #define AHCI_VSCAP 0xa4
218 #define AHCI_OFFSET 0x100
219 #define AHCI_STEP 0x80
221 #define AHCI_P_CLB 0x00
222 #define AHCI_P_CLBU 0x04
223 #define AHCI_P_FB 0x08
224 #define AHCI_P_FBU 0x0c
225 #define AHCI_P_IS 0x10
226 #define AHCI_P_IE 0x14
227 #define AHCI_P_IX_DHR 0x00000001
228 #define AHCI_P_IX_PS 0x00000002
229 #define AHCI_P_IX_DS 0x00000004
230 #define AHCI_P_IX_SDB 0x00000008
231 #define AHCI_P_IX_UF 0x00000010
232 #define AHCI_P_IX_DP 0x00000020
233 #define AHCI_P_IX_PC 0x00000040
234 #define AHCI_P_IX_MP 0x00000080
236 #define AHCI_P_IX_PRC 0x00400000
237 #define AHCI_P_IX_IPM 0x00800000
238 #define AHCI_P_IX_OF 0x01000000
239 #define AHCI_P_IX_INF 0x04000000
240 #define AHCI_P_IX_IF 0x08000000
241 #define AHCI_P_IX_HBD 0x10000000
242 #define AHCI_P_IX_HBF 0x20000000
243 #define AHCI_P_IX_TFE 0x40000000
244 #define AHCI_P_IX_CPD 0x80000000
246 #define AHCI_P_CMD 0x18
247 #define AHCI_P_CMD_ST 0x00000001
248 #define AHCI_P_CMD_SUD 0x00000002
249 #define AHCI_P_CMD_POD 0x00000004
250 #define AHCI_P_CMD_CLO 0x00000008
251 #define AHCI_P_CMD_FRE 0x00000010
252 #define AHCI_P_CMD_CCS_MASK 0x00001f00
253 #define AHCI_P_CMD_CCS_SHIFT 8
254 #define AHCI_P_CMD_ISS 0x00002000
255 #define AHCI_P_CMD_FR 0x00004000
256 #define AHCI_P_CMD_CR 0x00008000
257 #define AHCI_P_CMD_CPS 0x00010000
258 #define AHCI_P_CMD_PMA 0x00020000
259 #define AHCI_P_CMD_HPCP 0x00040000
260 #define AHCI_P_CMD_MPSP 0x00080000
261 #define AHCI_P_CMD_CPD 0x00100000
262 #define AHCI_P_CMD_ESP 0x00200000
263 #define AHCI_P_CMD_FBSCP 0x00400000
264 #define AHCI_P_CMD_APSTE 0x00800000
265 #define AHCI_P_CMD_ATAPI 0x01000000
266 #define AHCI_P_CMD_DLAE 0x02000000
267 #define AHCI_P_CMD_ALPE 0x04000000
268 #define AHCI_P_CMD_ASP 0x08000000
269 #define AHCI_P_CMD_ICC_MASK 0xf0000000
270 #define AHCI_P_CMD_NOOP 0x00000000
271 #define AHCI_P_CMD_ACTIVE 0x10000000
272 #define AHCI_P_CMD_PARTIAL 0x20000000
273 #define AHCI_P_CMD_SLUMBER 0x60000000
274 #define AHCI_P_CMD_DEVSLEEP 0x80000000
276 #define AHCI_P_TFD 0x20
277 #define AHCI_P_SIG 0x24
278 #define AHCI_P_SSTS 0x28
279 #define AHCI_P_SCTL 0x2c
280 #define AHCI_P_SERR 0x30
281 #define AHCI_P_SACT 0x34
282 #define AHCI_P_CI 0x38
283 #define AHCI_P_SNTF 0x3C
284 #define AHCI_P_FBS 0x40
285 #define AHCI_P_FBS_EN 0x00000001
286 #define AHCI_P_FBS_DEC 0x00000002
287 #define AHCI_P_FBS_SDE 0x00000004
288 #define AHCI_P_FBS_DEV 0x00000f00
289 #define AHCI_P_FBS_DEV_SHIFT 8
290 #define AHCI_P_FBS_ADO 0x0000f000
291 #define AHCI_P_FBS_ADO_SHIFT 12
292 #define AHCI_P_FBS_DWE 0x000f0000
293 #define AHCI_P_FBS_DWE_SHIFT 16
294 #define AHCI_P_DEVSLP 0x44
295 #define AHCI_P_DEVSLP_ADSE 0x00000001
296 #define AHCI_P_DEVSLP_DSP 0x00000002
297 #define AHCI_P_DEVSLP_DETO 0x000003fc
298 #define AHCI_P_DEVSLP_DETO_SHIFT 2
299 #define AHCI_P_DEVSLP_MDAT 0x00007c00
300 #define AHCI_P_DEVSLP_MDAT_SHIFT 10
301 #define AHCI_P_DEVSLP_DITO 0x01ff8000
302 #define AHCI_P_DEVSLP_DITO_SHIFT 15
303 #define AHCI_P_DEVSLP_DM 0x0e000000
304 #define AHCI_P_DEVSLP_DM_SHIFT 25
306 /* Just to be sure, if building as module. */
307 #if MAXPHYS < 512 * 1024
309 #define MAXPHYS 512 * 1024
311 /* Pessimistic prognosis on number of required S/G entries */
312 #define AHCI_SG_ENTRIES (roundup(btoc(MAXPHYS) + 1, 8))
313 /* Command list. 32 commands. First, 1Kbyte aligned. */
314 #define AHCI_CL_OFFSET 0
315 #define AHCI_CL_SIZE 32
316 /* Command tables. Up to 32 commands, Each, 128byte aligned. */
317 #define AHCI_CT_OFFSET (AHCI_CL_OFFSET + AHCI_CL_SIZE * AHCI_MAX_SLOTS)
318 #define AHCI_CT_SIZE (128 + AHCI_SG_ENTRIES * 16)
319 /* Total main work area. */
320 #define AHCI_WORK_SIZE (AHCI_CT_OFFSET + AHCI_CT_SIZE * ch->numslots)
322 /* ivars value fields */
323 #define AHCI_REMAPPED_UNIT (1 << 31) /* NVMe remapped device. */
324 #define AHCI_EM_UNIT (1 << 30) /* Enclosure Mgmt device. */
325 #define AHCI_UNIT 0xff /* Channel number. */
327 struct ahci_dma_prd {
330 u_int32_t dbc; /* 0 based */
331 #define AHCI_PRD_MASK 0x003fffff /* max 4MB */
332 #define AHCI_PRD_MAX (AHCI_PRD_MASK + 1)
333 #define AHCI_PRD_IPC (1U << 31)
336 struct ahci_cmd_tab {
339 u_int8_t reserved[32];
340 struct ahci_dma_prd prd_tab[AHCI_SG_ENTRIES];
343 struct ahci_cmd_list {
345 #define AHCI_CMD_ATAPI 0x0020
346 #define AHCI_CMD_WRITE 0x0040
347 #define AHCI_CMD_PREFETCH 0x0080
348 #define AHCI_CMD_RESET 0x0100
349 #define AHCI_CMD_BIST 0x0200
350 #define AHCI_CMD_CLR_BUSY 0x0400
352 u_int16_t prd_length; /* PRD entries */
354 u_int64_t cmd_table_phys; /* 128byte aligned */
358 #define ATA_IRQ_RID 0
359 #define ATA_INTR_FLAGS (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY)
362 bus_dmamap_t data_map; /* data DMA map */
363 int nsegs; /* Number of segs loaded */
366 /* structure holding DMA related information */
368 bus_dma_tag_t work_tag; /* workspace DMA tag */
369 bus_dmamap_t work_map; /* workspace DMA map */
370 uint8_t *work; /* workspace */
371 bus_addr_t work_bus; /* bus address of work */
372 bus_dma_tag_t rfis_tag; /* RFIS list DMA tag */
373 bus_dmamap_t rfis_map; /* RFIS list DMA map */
374 uint8_t *rfis; /* FIS receive area */
375 bus_addr_t rfis_bus; /* bus address of rfis */
376 bus_dma_tag_t data_tag; /* data DMA tag */
379 enum ahci_slot_states {
387 struct ahci_channel *ch; /* Channel */
388 u_int8_t slot; /* Number of this slot */
389 enum ahci_slot_states state; /* Slot state */
390 union ccb *ccb; /* CCB occupying slot */
391 struct ata_dmaslot dma; /* DMA data of this slot */
392 struct callout timeout; /* Execution timeout */
405 device_t dev; /* Device handle */
407 uint8_t num; /* Number of this led */
408 uint8_t state; /* State of this led */
411 #define AHCI_NUM_LEDS 3
413 /* structure describing an ATA channel */
414 struct ahci_channel {
415 device_t dev; /* Device handle */
416 int unit; /* Physical channel */
417 struct resource *r_mem; /* Memory of this channel */
418 struct resource *r_irq; /* Interrupt of this channel */
419 void *ih; /* Interrupt handle */
420 struct ata_dma dma; /* DMA data */
422 struct cam_path *path;
423 uint32_t caps; /* Controller capabilities */
424 uint32_t caps2; /* Controller capabilities */
425 uint32_t chcaps; /* Channel capabilities */
426 uint32_t chscaps; /* Channel sleep capabilities */
427 uint16_t vendorid; /* Vendor ID from the bus */
428 uint16_t deviceid; /* Device ID from the bus */
429 uint16_t subvendorid; /* Subvendor ID from the bus */
430 uint16_t subdeviceid; /* Subdevice ID from the bus */
432 int numslots; /* Number of present slots */
433 int pm_level; /* power management level */
434 int devices; /* What is present */
435 int pm_present; /* PM presence reported */
436 int fbs_enabled; /* FIS-based switching enabled */
438 void (*start)(struct ahci_channel *);
440 union ccb *hold[AHCI_MAX_SLOTS];
441 struct ahci_slot slot[AHCI_MAX_SLOTS];
442 uint32_t oslots; /* Occupied slots */
443 uint32_t rslots; /* Running slots */
444 uint32_t aslots; /* Slots with atomic commands */
445 uint32_t eslots; /* Slots in error */
446 uint32_t toslots; /* Slots in timeout */
447 int lastslot; /* Last used slot */
448 int taggedtarget; /* Last tagged target */
449 int numrslots; /* Number of running slots */
450 int numrslotspd[16];/* Number of running slots per dev */
451 int numtslots; /* Number of tagged slots */
452 int numtslotspd[16];/* Number of tagged slots per dev */
453 int numhslots; /* Number of held slots */
454 int recoverycmd; /* Our READ LOG active */
455 int fatalerr; /* Fatal error happened */
456 int resetting; /* Hard-reset in progress. */
457 int resetpolldiv; /* Hard-reset poll divider. */
458 int listening; /* SUD bit is cleared. */
459 int wrongccs; /* CCS field in CMD was wrong */
460 union ccb *frozen; /* Frozen command */
461 struct callout pm_timer; /* Power management events */
462 struct callout reset_timer; /* Hard-reset timeout */
464 struct ahci_device user[16]; /* User-specified settings */
465 struct ahci_device curr[16]; /* Current settings */
467 struct mtx_padalign mtx; /* state lock */
468 STAILQ_HEAD(, ccb_hdr) doneq; /* queue of completed CCBs */
469 int batch; /* doneq is in use */
471 int disablephy; /* keep PHY disabled */
474 struct ahci_enclosure {
475 device_t dev; /* Device handle */
476 struct resource *r_memc; /* Control register */
477 struct resource *r_memt; /* Transmit buffer */
478 struct resource *r_memr; /* Receive buffer */
480 struct cam_path *path;
481 struct mtx mtx; /* state lock */
482 struct ahci_led leds[AHCI_MAX_PORTS * 3];
483 uint32_t capsem; /* Controller capabilities */
484 uint8_t status[AHCI_MAX_PORTS][4]; /* ArrayDev statuses */
490 /* structure describing a AHCI controller */
491 struct ahci_controller {
493 bus_dma_tag_t dma_tag;
497 uint16_t vendorid; /* Vendor ID from the bus */
498 uint16_t deviceid; /* Device ID from the bus */
499 uint16_t subvendorid; /* Subvendor ID from the bus */
500 uint16_t subdeviceid; /* Subdevice ID from the bus */
501 struct resource *r_mem;
502 struct resource *r_msix_table;
503 struct resource *r_msix_pba;
504 struct rman sc_iomem;
505 struct ahci_controller_irq {
506 struct ahci_controller *ctlr;
507 struct resource *r_irq;
511 #define AHCI_IRQ_MODE_ALL 0
512 #define AHCI_IRQ_MODE_AFTER 1
513 #define AHCI_IRQ_MODE_ONE 2
514 } irqs[AHCI_MAX_IRQS];
515 uint32_t caps; /* Controller capabilities */
516 uint32_t caps2; /* Controller capabilities */
517 uint32_t capsem; /* Controller capabilities */
518 uint32_t emloc; /* EM buffer location */
523 int ccc; /* CCC timeout */
524 int cccv; /* CCC vector */
525 int direct; /* Direct command completion */
526 int msi; /* MSI interupts */
527 int remapped_devices; /* Remapped NVMe devices */
528 uint32_t remap_offset;
531 void (*function)(void *);
533 } interrupt[AHCI_MAX_PORTS];
534 void (*ch_start)(struct ahci_channel *);
535 int dma_coherent; /* DMA is cache-coherent */
536 struct mtx ch_mtx; /* Lock for attached channels */
537 struct ahci_channel *ch[AHCI_MAX_PORTS]; /* Attached channels */
541 AHCI_ERR_NONE, /* No error */
542 AHCI_ERR_INVALID, /* Error detected by us before submitting. */
543 AHCI_ERR_INNOCENT, /* Innocent victim. */
544 AHCI_ERR_TFE, /* Task File Error. */
545 AHCI_ERR_SATA, /* SATA error. */
546 AHCI_ERR_TIMEOUT, /* Command execution timeout. */
547 AHCI_ERR_NCQ, /* NCQ command error. CCB should be put on hold
548 * until READ LOG executed to reveal error. */
551 /* macros to hide busspace uglyness */
552 #define ATA_INB(res, offset) \
553 bus_read_1((res), (offset))
554 #define ATA_INW(res, offset) \
555 bus_read_2((res), (offset))
556 #define ATA_INL(res, offset) \
557 bus_read_4((res), (offset))
558 #define ATA_INSW(res, offset, addr, count) \
559 bus_read_multi_2((res), (offset), (addr), (count))
560 #define ATA_INSW_STRM(res, offset, addr, count) \
561 bus_read_multi_stream_2((res), (offset), (addr), (count))
562 #define ATA_INSL(res, offset, addr, count) \
563 bus_read_multi_4((res), (offset), (addr), (count))
564 #define ATA_INSL_STRM(res, offset, addr, count) \
565 bus_read_multi_stream_4((res), (offset), (addr), (count))
566 #define ATA_OUTB(res, offset, value) \
567 bus_write_1((res), (offset), (value))
568 #define ATA_OUTW(res, offset, value) \
569 bus_write_2((res), (offset), (value))
570 #define ATA_OUTL(res, offset, value) \
571 bus_write_4((res), (offset), (value))
572 #define ATA_OUTSW(res, offset, addr, count) \
573 bus_write_multi_2((res), (offset), (addr), (count))
574 #define ATA_OUTSW_STRM(res, offset, addr, count) \
575 bus_write_multi_stream_2((res), (offset), (addr), (count))
576 #define ATA_OUTSL(res, offset, addr, count) \
577 bus_write_multi_4((res), (offset), (addr), (count))
578 #define ATA_OUTSL_STRM(res, offset, addr, count) \
579 bus_write_multi_stream_4((res), (offset), (addr), (count))
582 * On some platforms, we must ensure proper interdevice write ordering.
583 * The AHCI interrupt status register must be updated in HW before
584 * registers in interrupt controller.
585 * Unfortunately, only way how we can do it is readback.
587 * Currently, only ARM is known to have this issue.
590 #define ATA_RBL(res, offset) \
591 bus_read_4((res), (offset))
593 #define ATA_RBL(res, offset)
596 #define AHCI_Q_NOFORCE 0x00000001
597 #define AHCI_Q_NOPMP 0x00000002
598 #define AHCI_Q_NONCQ 0x00000004
599 #define AHCI_Q_1CH 0x00000008
600 #define AHCI_Q_2CH 0x00000010
601 #define AHCI_Q_4CH 0x00000020
602 #define AHCI_Q_EDGEIS 0x00000040
603 #define AHCI_Q_SATA2 0x00000080
604 #define AHCI_Q_NOBSYRES 0x00000100
605 #define AHCI_Q_NOAA 0x00000200
606 #define AHCI_Q_NOCOUNT 0x00000400
607 #define AHCI_Q_ALTSIG 0x00000800
608 #define AHCI_Q_NOMSI 0x00001000
609 #define AHCI_Q_ATI_PMP_BUG 0x00002000
610 #define AHCI_Q_MAXIO_64K 0x00004000
611 #define AHCI_Q_SATA1_UNIT0 0x00008000 /* need better method for this */
612 #define AHCI_Q_ABAR0 0x00010000
613 #define AHCI_Q_1MSI 0x00020000
614 #define AHCI_Q_FORCE_PI 0x00040000
615 #define AHCI_Q_RESTORE_CAP 0x00080000
616 #define AHCI_Q_NOMSIX 0x00100000
617 #define AHCI_Q_MRVL_SR_DEL 0x00200000
618 #define AHCI_Q_NOCCS 0x00400000
619 #define AHCI_Q_NOAUX 0x00800000
621 #define AHCI_Q_BIT_STRING \
648 int ahci_attach(device_t dev);
649 int ahci_detach(device_t dev);
650 int ahci_setup_interrupt(device_t dev);
651 int ahci_print_child(device_t dev, device_t child);
652 struct resource *ahci_alloc_resource(device_t dev, device_t child, int type, int *rid,
653 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags);
654 int ahci_release_resource(device_t dev, device_t child, int type, int rid,
656 int ahci_setup_intr(device_t dev, device_t child, struct resource *irq,
657 int flags, driver_filter_t *filter, driver_intr_t *function,
658 void *argument, void **cookiep);
659 int ahci_teardown_intr(device_t dev, device_t child, struct resource *irq,
661 int ahci_child_location_str(device_t dev, device_t child, char *buf,
663 bus_dma_tag_t ahci_get_dma_tag(device_t dev, device_t child);
664 int ahci_ctlr_reset(device_t dev);
665 int ahci_ctlr_setup(device_t dev);
666 void ahci_free_mem(device_t dev);
668 /* Functions to allow AHCI EM to access other channels. */
669 void ahci_attached(device_t dev, struct ahci_channel *ch);
670 void ahci_detached(device_t dev, struct ahci_channel *ch);
671 struct ahci_channel * ahci_getch(device_t dev, int n);
672 void ahci_putch(struct ahci_channel *ch);
674 extern devclass_t ahci_devclass;