5 * Copyright 1994, Drew Eckhardt
6 * Copyright 1997--1999 Martin Mares <mj@ucw.cz>
8 * For more information, please consult the following manuals (look at
9 * http://www.pcisig.com/ for how to get them):
11 * PCI BIOS Specification
12 * PCI Local Bus Specification
13 * PCI to PCI Bridge Specification
14 * PCI System Design Guide
16 * For HyperTransport information, please consult the following manuals
17 * from http://www.hypertransport.org
19 * The HyperTransport I/O Link Specification
22 #ifndef LINUX_PCI_REGS_H
23 #define LINUX_PCI_REGS_H
26 * Under PCI, each device has 256 bytes of configuration address space,
27 * of which the first 64 bytes are standardized as follows:
29 #define PCI_STD_HEADER_SIZEOF 64
30 #define PCI_VENDOR_ID 0x00 /* 16 bits */
31 #define PCI_DEVICE_ID 0x02 /* 16 bits */
32 #define PCI_COMMAND 0x04 /* 16 bits */
33 #define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
34 #define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
35 #define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
36 #define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
37 #define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
38 #define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
39 #define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
40 #define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */
41 #define PCI_COMMAND_SERR 0x100 /* Enable SERR */
42 #define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
43 #define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
45 #define PCI_STATUS 0x06 /* 16 bits */
46 #define PCI_STATUS_INTERRUPT 0x08 /* Interrupt status */
47 #define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
48 #define PCI_STATUS_66MHZ 0x20 /* Support 66 MHz PCI 2.1 bus */
49 #define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
50 #define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */
51 #define PCI_STATUS_PARITY 0x100 /* Detected parity error */
52 #define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */
53 #define PCI_STATUS_DEVSEL_FAST 0x000
54 #define PCI_STATUS_DEVSEL_MEDIUM 0x200
55 #define PCI_STATUS_DEVSEL_SLOW 0x400
56 #define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
57 #define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
58 #define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
59 #define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
60 #define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */
62 #define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 revision */
63 #define PCI_REVISION_ID 0x08 /* Revision ID */
64 #define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
65 #define PCI_CLASS_DEVICE 0x0a /* Device class */
67 #define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
68 #define PCI_LATENCY_TIMER 0x0d /* 8 bits */
69 #define PCI_HEADER_TYPE 0x0e /* 8 bits */
70 #define PCI_HEADER_TYPE_NORMAL 0
71 #define PCI_HEADER_TYPE_BRIDGE 1
72 #define PCI_HEADER_TYPE_CARDBUS 2
74 #define PCI_BIST 0x0f /* 8 bits */
75 #define PCI_BIST_CODE_MASK 0x0f /* Return result */
76 #define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */
77 #define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */
80 * Base addresses specify locations in memory or I/O space.
81 * Decoded size can be determined by writing a value of
82 * 0xffffffff to the register, and reading it back. Only
85 #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
86 #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */
87 #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */
88 #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
89 #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
90 #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
91 #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */
92 #define PCI_BASE_ADDRESS_SPACE_IO 0x01
93 #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
94 #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
95 #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
96 #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
97 #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
98 #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
99 #define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL)
100 #define PCI_BASE_ADDRESS_IO_MASK (~0x03UL)
101 /* bit 1 is reserved if address_space = 1 */
103 /* Header type 0 (normal devices) */
104 #define PCI_CARDBUS_CIS 0x28
105 #define PCI_SUBSYSTEM_VENDOR_ID 0x2c
106 #define PCI_SUBSYSTEM_ID 0x2e
107 #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
108 #define PCI_ROM_ADDRESS_ENABLE 0x01
109 #define PCI_ROM_ADDRESS_MASK (~0x7ffUL)
111 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
113 /* 0x35-0x3b are reserved */
114 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
115 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
116 #define PCI_MIN_GNT 0x3e /* 8 bits */
117 #define PCI_MAX_LAT 0x3f /* 8 bits */
119 /* Header type 1 (PCI-to-PCI bridges) */
120 #define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
121 #define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
122 #define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
123 #define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
124 #define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
125 #define PCI_IO_LIMIT 0x1d
126 #define PCI_IO_RANGE_TYPE_MASK 0x0fUL /* I/O bridging type */
127 #define PCI_IO_RANGE_TYPE_16 0x00
128 #define PCI_IO_RANGE_TYPE_32 0x01
129 #define PCI_IO_RANGE_MASK (~0x0fUL) /* Standard 4K I/O windows */
130 #define PCI_IO_1K_RANGE_MASK (~0x03UL) /* Intel 1K I/O windows */
131 #define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
132 #define PCI_MEMORY_BASE 0x20 /* Memory range behind */
133 #define PCI_MEMORY_LIMIT 0x22
134 #define PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL
135 #define PCI_MEMORY_RANGE_MASK (~0x0fUL)
136 #define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
137 #define PCI_PREF_MEMORY_LIMIT 0x26
138 #define PCI_PREF_RANGE_TYPE_MASK 0x0fUL
139 #define PCI_PREF_RANGE_TYPE_32 0x00
140 #define PCI_PREF_RANGE_TYPE_64 0x01
141 #define PCI_PREF_RANGE_MASK (~0x0fUL)
142 #define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
143 #define PCI_PREF_LIMIT_UPPER32 0x2c
144 #define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
145 #define PCI_IO_LIMIT_UPPER16 0x32
146 /* 0x34 same as for htype 0 */
147 /* 0x35-0x3b is reserved */
148 #define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
149 /* 0x3c-0x3d are same as for htype 0 */
150 #define PCI_BRIDGE_CONTROL 0x3e
151 #define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
152 #define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
153 #define PCI_BRIDGE_CTL_ISA 0x04 /* Enable ISA mode */
154 #define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
155 #define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
156 #define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
157 #define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
159 /* Header type 2 (CardBus bridges) */
160 #define PCI_CB_CAPABILITY_LIST 0x14
162 #define PCI_CB_SEC_STATUS 0x16 /* Secondary status */
163 #define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */
164 #define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */
165 #define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */
166 #define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */
167 #define PCI_CB_MEMORY_BASE_0 0x1c
168 #define PCI_CB_MEMORY_LIMIT_0 0x20
169 #define PCI_CB_MEMORY_BASE_1 0x24
170 #define PCI_CB_MEMORY_LIMIT_1 0x28
171 #define PCI_CB_IO_BASE_0 0x2c
172 #define PCI_CB_IO_BASE_0_HI 0x2e
173 #define PCI_CB_IO_LIMIT_0 0x30
174 #define PCI_CB_IO_LIMIT_0_HI 0x32
175 #define PCI_CB_IO_BASE_1 0x34
176 #define PCI_CB_IO_BASE_1_HI 0x36
177 #define PCI_CB_IO_LIMIT_1 0x38
178 #define PCI_CB_IO_LIMIT_1_HI 0x3a
179 #define PCI_CB_IO_RANGE_MASK (~0x03UL)
180 /* 0x3c-0x3d are same as for htype 0 */
181 #define PCI_CB_BRIDGE_CONTROL 0x3e
182 #define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */
183 #define PCI_CB_BRIDGE_CTL_SERR 0x02
184 #define PCI_CB_BRIDGE_CTL_ISA 0x04
185 #define PCI_CB_BRIDGE_CTL_VGA 0x08
186 #define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
187 #define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */
188 #define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */
189 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */
190 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
191 #define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400
192 #define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
193 #define PCI_CB_SUBSYSTEM_ID 0x42
194 #define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */
195 /* 0x48-0x7f reserved */
197 /* Capability lists */
199 #define PCI_CAP_LIST_ID 0 /* Capability ID */
200 #define PCI_CAP_ID_PM 0x01 /* Power Management */
201 #define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
202 #define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
203 #define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
204 #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
205 #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
206 #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */
207 #define PCI_CAP_ID_HT 0x08 /* HyperTransport */
208 #define PCI_CAP_ID_VNDR 0x09 /* Vendor-Specific */
209 #define PCI_CAP_ID_DBG 0x0A /* Debug port */
210 #define PCI_CAP_ID_CCRC 0x0B /* CompactPCI Central Resource Control */
211 #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */
212 #define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */
213 #define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */
214 #define PCI_CAP_ID_SECDEV 0x0F /* Secure Device */
215 #define PCI_CAP_ID_EXP 0x10 /* PCI Express */
216 #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */
217 #define PCI_CAP_ID_SATA 0x12 /* SATA Data/Index Conf. */
218 #define PCI_CAP_ID_AF 0x13 /* PCI Advanced Features */
219 #define PCI_CAP_ID_MAX PCI_CAP_ID_AF
220 #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
221 #define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
222 #define PCI_CAP_SIZEOF 4
224 /* Power Management Registers */
226 #define PCI_PM_PMC 2 /* PM Capabilities Register */
227 #define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
228 #define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
229 #define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */
230 #define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
231 #define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxiliary power support mask */
232 #define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
233 #define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
234 #define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
235 #define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */
236 #define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */
237 #define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */
238 #define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */
239 #define PCI_PM_CAP_PME_D3 0x4000 /* PME# from D3 (hot) */
240 #define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
241 #define PCI_PM_CAP_PME_SHIFT 11 /* Start of the PME Mask in PMC */
242 #define PCI_PM_CTRL 4 /* PM control and status register */
243 #define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
244 #define PCI_PM_CTRL_NO_SOFT_RESET 0x0008 /* No reset for D3hot->D0 */
245 #define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
246 #define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
247 #define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
248 #define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
249 #define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
250 #define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
251 #define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
252 #define PCI_PM_DATA_REGISTER 7 /* (??) */
253 #define PCI_PM_SIZEOF 8
257 #define PCI_AGP_VERSION 2 /* BCD version number */
258 #define PCI_AGP_RFU 3 /* Rest of capability flags */
259 #define PCI_AGP_STATUS 4 /* Status register */
260 #define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
261 #define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
262 #define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
263 #define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
264 #define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
265 #define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
266 #define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
267 #define PCI_AGP_COMMAND 8 /* Control register */
268 #define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
269 #define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
270 #define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
271 #define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
272 #define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
273 #define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
274 #define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */
275 #define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */
276 #define PCI_AGP_SIZEOF 12
278 /* Vital Product Data */
280 #define PCI_VPD_ADDR 2 /* Address to access (15 bits!) */
281 #define PCI_VPD_ADDR_MASK 0x7fff /* Address mask */
282 #define PCI_VPD_ADDR_F 0x8000 /* Write 0, 1 indicates completion */
283 #define PCI_VPD_DATA 4 /* 32-bits of data returned here */
284 #define PCI_CAP_VPD_SIZEOF 8
286 /* Slot Identification */
288 #define PCI_SID_ESR 2 /* Expansion Slot Register */
289 #define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
290 #define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
291 #define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
293 /* Message Signalled Interrupts registers */
295 #define PCI_MSI_FLAGS 2 /* Message Control */
296 #define PCI_MSI_FLAGS_ENABLE 0x0001 /* MSI feature enabled */
297 #define PCI_MSI_FLAGS_QMASK 0x000e /* Maximum queue size available */
298 #define PCI_MSI_FLAGS_QSIZE 0x0070 /* Message queue size configured */
299 #define PCI_MSI_FLAGS_64BIT 0x0080 /* 64-bit addresses allowed */
300 #define PCI_MSI_FLAGS_MASKBIT 0x0100 /* Per-vector masking capable */
301 #define PCI_MSI_RFU 3 /* Rest of capability flags */
302 #define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
303 #define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
304 #define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
305 #define PCI_MSI_MASK_32 12 /* Mask bits register for 32-bit devices */
306 #define PCI_MSI_PENDING_32 16 /* Pending intrs for 32-bit devices */
307 #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
308 #define PCI_MSI_MASK_64 16 /* Mask bits register for 64-bit devices */
309 #define PCI_MSI_PENDING_64 20 /* Pending intrs for 64-bit devices */
311 /* MSI-X registers */
312 #define PCI_MSIX_FLAGS 2 /* Message Control */
313 #define PCI_MSIX_FLAGS_QSIZE 0x07FF /* Table size */
314 #define PCI_MSIX_FLAGS_MASKALL 0x4000 /* Mask all vectors for this function */
315 #define PCI_MSIX_FLAGS_ENABLE 0x8000 /* MSI-X enable */
316 #define PCI_MSIX_TABLE 4 /* Table offset */
317 #define PCI_MSIX_TABLE_BIR 0x00000007 /* BAR index */
318 #define PCI_MSIX_TABLE_OFFSET 0xfffffff8 /* Offset into specified BAR */
319 #define PCI_MSIX_PBA 8 /* Pending Bit Array offset */
320 #define PCI_MSIX_PBA_BIR 0x00000007 /* BAR index */
321 #define PCI_MSIX_PBA_OFFSET 0xfffffff8 /* Offset into specified BAR */
322 #define PCI_CAP_MSIX_SIZEOF 12 /* size of MSIX registers */
324 /* MSI-X Table entry format */
325 #define PCI_MSIX_ENTRY_SIZE 16
326 #define PCI_MSIX_ENTRY_LOWER_ADDR 0
327 #define PCI_MSIX_ENTRY_UPPER_ADDR 4
328 #define PCI_MSIX_ENTRY_DATA 8
329 #define PCI_MSIX_ENTRY_VECTOR_CTRL 12
330 #define PCI_MSIX_ENTRY_CTRL_MASKBIT 1
332 /* CompactPCI Hotswap Register */
334 #define PCI_CHSWP_CSR 2 /* Control and Status Register */
335 #define PCI_CHSWP_DHA 0x01 /* Device Hiding Arm */
336 #define PCI_CHSWP_EIM 0x02 /* ENUM# Signal Mask */
337 #define PCI_CHSWP_PIE 0x04 /* Pending Insert or Extract */
338 #define PCI_CHSWP_LOO 0x08 /* LED On / Off */
339 #define PCI_CHSWP_PI 0x30 /* Programming Interface */
340 #define PCI_CHSWP_EXT 0x40 /* ENUM# status - extraction */
341 #define PCI_CHSWP_INS 0x80 /* ENUM# status - insertion */
343 /* PCI Advanced Feature registers */
345 #define PCI_AF_LENGTH 2
347 #define PCI_AF_CAP_TP 0x01
348 #define PCI_AF_CAP_FLR 0x02
349 #define PCI_AF_CTRL 4
350 #define PCI_AF_CTRL_FLR 0x01
351 #define PCI_AF_STATUS 5
352 #define PCI_AF_STATUS_TP 0x01
353 #define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */
355 /* PCI-X registers (Type 0 (non-bridge) devices) */
357 #define PCI_X_CMD 2 /* Modes & Features */
358 #define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */
359 #define PCI_X_CMD_ERO 0x0002 /* Enable Relaxed Ordering */
360 #define PCI_X_CMD_READ_512 0x0000 /* 512 byte maximum read byte count */
361 #define PCI_X_CMD_READ_1K 0x0004 /* 1Kbyte maximum read byte count */
362 #define PCI_X_CMD_READ_2K 0x0008 /* 2Kbyte maximum read byte count */
363 #define PCI_X_CMD_READ_4K 0x000c /* 4Kbyte maximum read byte count */
364 #define PCI_X_CMD_MAX_READ 0x000c /* Max Memory Read Byte Count */
365 /* Max # of outstanding split transactions */
366 #define PCI_X_CMD_SPLIT_1 0x0000 /* Max 1 */
367 #define PCI_X_CMD_SPLIT_2 0x0010 /* Max 2 */
368 #define PCI_X_CMD_SPLIT_3 0x0020 /* Max 3 */
369 #define PCI_X_CMD_SPLIT_4 0x0030 /* Max 4 */
370 #define PCI_X_CMD_SPLIT_8 0x0040 /* Max 8 */
371 #define PCI_X_CMD_SPLIT_12 0x0050 /* Max 12 */
372 #define PCI_X_CMD_SPLIT_16 0x0060 /* Max 16 */
373 #define PCI_X_CMD_SPLIT_32 0x0070 /* Max 32 */
374 #define PCI_X_CMD_MAX_SPLIT 0x0070 /* Max Outstanding Split Transactions */
375 #define PCI_X_CMD_VERSION(x) (((x) >> 12) & 3) /* Version */
376 #define PCI_X_STATUS 4 /* PCI-X capabilities */
377 #define PCI_X_STATUS_DEVFN 0x000000ff /* A copy of devfn */
378 #define PCI_X_STATUS_BUS 0x0000ff00 /* A copy of bus nr */
379 #define PCI_X_STATUS_64BIT 0x00010000 /* 64-bit device */
380 #define PCI_X_STATUS_133MHZ 0x00020000 /* 133 MHz capable */
381 #define PCI_X_STATUS_SPL_DISC 0x00040000 /* Split Completion Discarded */
382 #define PCI_X_STATUS_UNX_SPL 0x00080000 /* Unexpected Split Completion */
383 #define PCI_X_STATUS_COMPLEX 0x00100000 /* Device Complexity */
384 #define PCI_X_STATUS_MAX_READ 0x00600000 /* Designed Max Memory Read Count */
385 #define PCI_X_STATUS_MAX_SPLIT 0x03800000 /* Designed Max Outstanding Split Transactions */
386 #define PCI_X_STATUS_MAX_CUM 0x1c000000 /* Designed Max Cumulative Read Size */
387 #define PCI_X_STATUS_SPL_ERR 0x20000000 /* Rcvd Split Completion Error Msg */
388 #define PCI_X_STATUS_266MHZ 0x40000000 /* 266 MHz capable */
389 #define PCI_X_STATUS_533MHZ 0x80000000 /* 533 MHz capable */
390 #define PCI_X_ECC_CSR 8 /* ECC control and status */
391 #define PCI_CAP_PCIX_SIZEOF_V0 8 /* size of registers for Version 0 */
392 #define PCI_CAP_PCIX_SIZEOF_V1 24 /* size for Version 1 */
393 #define PCI_CAP_PCIX_SIZEOF_V2 PCI_CAP_PCIX_SIZEOF_V1 /* Same for v2 */
395 /* PCI-X registers (Type 1 (bridge) devices) */
397 #define PCI_X_BRIDGE_SSTATUS 2 /* Secondary Status */
398 #define PCI_X_SSTATUS_64BIT 0x0001 /* Secondary AD interface is 64 bits */
399 #define PCI_X_SSTATUS_133MHZ 0x0002 /* 133 MHz capable */
400 #define PCI_X_SSTATUS_FREQ 0x03c0 /* Secondary Bus Mode and Frequency */
401 #define PCI_X_SSTATUS_VERS 0x3000 /* PCI-X Capability Version */
402 #define PCI_X_SSTATUS_V1 0x1000 /* Mode 2, not Mode 1 */
403 #define PCI_X_SSTATUS_V2 0x2000 /* Mode 1 or Modes 1 and 2 */
404 #define PCI_X_SSTATUS_266MHZ 0x4000 /* 266 MHz capable */
405 #define PCI_X_SSTATUS_533MHZ 0x8000 /* 533 MHz capable */
406 #define PCI_X_BRIDGE_STATUS 4 /* Bridge Status */
408 /* PCI Bridge Subsystem ID registers */
410 #define PCI_SSVID_VENDOR_ID 4 /* PCI Bridge subsystem vendor ID */
411 #define PCI_SSVID_DEVICE_ID 6 /* PCI Bridge subsystem device ID */
413 /* PCI Express capability registers */
415 #define PCI_EXP_FLAGS 2 /* Capabilities register */
416 #define PCI_EXP_FLAGS_VERS 0x000f /* Capability version */
417 #define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */
418 #define PCI_EXP_TYPE_ENDPOINT 0x0 /* Express Endpoint */
419 #define PCI_EXP_TYPE_LEG_END 0x1 /* Legacy Endpoint */
420 #define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
421 #define PCI_EXP_TYPE_UPSTREAM 0x5 /* Upstream Port */
422 #define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
423 #define PCI_EXP_TYPE_PCI_BRIDGE 0x7 /* PCIe to PCI/PCI-X Bridge */
424 #define PCI_EXP_TYPE_PCIE_BRIDGE 0x8 /* PCI/PCI-X to PCIe Bridge */
425 #define PCI_EXP_TYPE_RC_END 0x9 /* Root Complex Integrated Endpoint */
426 #define PCI_EXP_TYPE_RC_EC 0xa /* Root Complex Event Collector */
427 #define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */
428 #define PCI_EXP_FLAGS_IRQ 0x3e00 /* Interrupt message number */
429 #define PCI_EXP_DEVCAP 4 /* Device capabilities */
430 #define PCI_EXP_DEVCAP_PAYLOAD 0x00000007 /* Max_Payload_Size */
431 #define PCI_EXP_DEVCAP_PHANTOM 0x00000018 /* Phantom functions */
432 #define PCI_EXP_DEVCAP_EXT_TAG 0x00000020 /* Extended tags */
433 #define PCI_EXP_DEVCAP_L0S 0x000001c0 /* L0s Acceptable Latency */
434 #define PCI_EXP_DEVCAP_L1 0x00000e00 /* L1 Acceptable Latency */
435 #define PCI_EXP_DEVCAP_ATN_BUT 0x00001000 /* Attention Button Present */
436 #define PCI_EXP_DEVCAP_ATN_IND 0x00002000 /* Attention Indicator Present */
437 #define PCI_EXP_DEVCAP_PWR_IND 0x00004000 /* Power Indicator Present */
438 #define PCI_EXP_DEVCAP_RBER 0x00008000 /* Role-Based Error Reporting */
439 #define PCI_EXP_DEVCAP_PWR_VAL 0x03fc0000 /* Slot Power Limit Value */
440 #define PCI_EXP_DEVCAP_PWR_SCL 0x0c000000 /* Slot Power Limit Scale */
441 #define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */
442 #define PCI_EXP_DEVCTL 8 /* Device Control */
443 #define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */
444 #define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */
445 #define PCI_EXP_DEVCTL_FERE 0x0004 /* Fatal Error Reporting Enable */
446 #define PCI_EXP_DEVCTL_URRE 0x0008 /* Unsupported Request Reporting En. */
447 #define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
448 #define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */
449 #define PCI_EXP_DEVCTL_EXT_TAG 0x0100 /* Extended Tag Field Enable */
450 #define PCI_EXP_DEVCTL_PHANTOM 0x0200 /* Phantom Functions Enable */
451 #define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */
452 #define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */
453 #define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */
454 #define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */
455 #define PCI_EXP_DEVSTA 10 /* Device Status */
456 #define PCI_EXP_DEVSTA_CED 0x0001 /* Correctable Error Detected */
457 #define PCI_EXP_DEVSTA_NFED 0x0002 /* Non-Fatal Error Detected */
458 #define PCI_EXP_DEVSTA_FED 0x0004 /* Fatal Error Detected */
459 #define PCI_EXP_DEVSTA_URD 0x0008 /* Unsupported Request Detected */
460 #define PCI_EXP_DEVSTA_AUXPD 0x0010 /* AUX Power Detected */
461 #define PCI_EXP_DEVSTA_TRPND 0x0020 /* Transactions Pending */
462 #define PCI_EXP_LNKCAP 12 /* Link Capabilities */
463 #define PCI_EXP_LNKCAP_SLS 0x0000000f /* Supported Link Speeds */
464 #define PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
465 #define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
466 #define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
467 #define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
468 #define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */
469 #define PCI_EXP_LNKCAP_L1EL 0x00038000 /* L1 Exit Latency */
470 #define PCI_EXP_LNKCAP_CLKPM 0x00040000 /* Clock Power Management */
471 #define PCI_EXP_LNKCAP_SDERC 0x00080000 /* Surprise Down Error Reporting Capable */
472 #define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */
473 #define PCI_EXP_LNKCAP_LBNC 0x00200000 /* Link Bandwidth Notification Capability */
474 #define PCI_EXP_LNKCAP_PN 0xff000000 /* Port Number */
475 #define PCI_EXP_LNKCTL 16 /* Link Control */
476 #define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */
477 #define PCI_EXP_LNKCTL_ASPM_L0S 0x0001 /* L0s Enable */
478 #define PCI_EXP_LNKCTL_ASPM_L1 0x0002 /* L1 Enable */
479 #define PCI_EXP_LNKCTL_RCB 0x0008 /* Read Completion Boundary */
480 #define PCI_EXP_LNKCTL_LD 0x0010 /* Link Disable */
481 #define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */
482 #define PCI_EXP_LNKCTL_CCC 0x0040 /* Common Clock Configuration */
483 #define PCI_EXP_LNKCTL_ES 0x0080 /* Extended Synch */
484 #define PCI_EXP_LNKCTL_CLKREQ_EN 0x0100 /* Enable clkreq */
485 #define PCI_EXP_LNKCTL_HAWD 0x0200 /* Hardware Autonomous Width Disable */
486 #define PCI_EXP_LNKCTL_LBMIE 0x0400 /* Link Bandwidth Management Interrupt Enable */
487 #define PCI_EXP_LNKCTL_LABIE 0x0800 /* Link Autonomous Bandwidth Interrupt Enable */
488 #define PCI_EXP_LNKSTA 18 /* Link Status */
489 #define PCI_EXP_LNKSTA_CLS 0x000f /* Current Link Speed */
490 #define PCI_EXP_LNKSTA_CLS_2_5GB 0x0001 /* Current Link Speed 2.5GT/s */
491 #define PCI_EXP_LNKSTA_CLS_5_0GB 0x0002 /* Current Link Speed 5.0GT/s */
492 #define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003 /* Current Link Speed 8.0GT/s */
493 #define PCI_EXP_LNKSTA_NLW 0x03f0 /* Negotiated Link Width */
494 #define PCI_EXP_LNKSTA_NLW_X1 0x0010 /* Current Link Width x1 */
495 #define PCI_EXP_LNKSTA_NLW_X2 0x0020 /* Current Link Width x2 */
496 #define PCI_EXP_LNKSTA_NLW_X4 0x0040 /* Current Link Width x4 */
497 #define PCI_EXP_LNKSTA_NLW_X8 0x0080 /* Current Link Width x8 */
498 #define PCI_EXP_LNKSTA_NLW_SHIFT 4 /* start of NLW mask in link status */
499 #define PCI_EXP_LNKSTA_LT 0x0800 /* Link Training */
500 #define PCI_EXP_LNKSTA_SLC 0x1000 /* Slot Clock Configuration */
501 #define PCI_EXP_LNKSTA_DLLLA 0x2000 /* Data Link Layer Link Active */
502 #define PCI_EXP_LNKSTA_LBMS 0x4000 /* Link Bandwidth Management Status */
503 #define PCI_EXP_LNKSTA_LABS 0x8000 /* Link Autonomous Bandwidth Status */
504 #define PCI_CAP_EXP_ENDPOINT_SIZEOF_V1 20 /* v1 endpoints end here */
505 #define PCI_EXP_SLTCAP 20 /* Slot Capabilities */
506 #define PCI_EXP_SLTCAP_ABP 0x00000001 /* Attention Button Present */
507 #define PCI_EXP_SLTCAP_PCP 0x00000002 /* Power Controller Present */
508 #define PCI_EXP_SLTCAP_MRLSP 0x00000004 /* MRL Sensor Present */
509 #define PCI_EXP_SLTCAP_AIP 0x00000008 /* Attention Indicator Present */
510 #define PCI_EXP_SLTCAP_PIP 0x00000010 /* Power Indicator Present */
511 #define PCI_EXP_SLTCAP_HPS 0x00000020 /* Hot-Plug Surprise */
512 #define PCI_EXP_SLTCAP_HPC 0x00000040 /* Hot-Plug Capable */
513 #define PCI_EXP_SLTCAP_SPLV 0x00007f80 /* Slot Power Limit Value */
514 #define PCI_EXP_SLTCAP_SPLS 0x00018000 /* Slot Power Limit Scale */
515 #define PCI_EXP_SLTCAP_EIP 0x00020000 /* Electromechanical Interlock Present */
516 #define PCI_EXP_SLTCAP_NCCS 0x00040000 /* No Command Completed Support */
517 #define PCI_EXP_SLTCAP_PSN 0xfff80000 /* Physical Slot Number */
518 #define PCI_EXP_SLTCTL 24 /* Slot Control */
519 #define PCI_EXP_SLTCTL_ABPE 0x0001 /* Attention Button Pressed Enable */
520 #define PCI_EXP_SLTCTL_PFDE 0x0002 /* Power Fault Detected Enable */
521 #define PCI_EXP_SLTCTL_MRLSCE 0x0004 /* MRL Sensor Changed Enable */
522 #define PCI_EXP_SLTCTL_PDCE 0x0008 /* Presence Detect Changed Enable */
523 #define PCI_EXP_SLTCTL_CCIE 0x0010 /* Command Completed Interrupt Enable */
524 #define PCI_EXP_SLTCTL_HPIE 0x0020 /* Hot-Plug Interrupt Enable */
525 #define PCI_EXP_SLTCTL_AIC 0x00c0 /* Attention Indicator Control */
526 #define PCI_EXP_SLTCTL_ATTN_IND_ON 0x0040 /* Attention Indicator on */
527 #define PCI_EXP_SLTCTL_ATTN_IND_BLINK 0x0080 /* Attention Indicator blinking */
528 #define PCI_EXP_SLTCTL_ATTN_IND_OFF 0x00c0 /* Attention Indicator off */
529 #define PCI_EXP_SLTCTL_PIC 0x0300 /* Power Indicator Control */
530 #define PCI_EXP_SLTCTL_PWR_IND_ON 0x0100 /* Power Indicator on */
531 #define PCI_EXP_SLTCTL_PWR_IND_BLINK 0x0200 /* Power Indicator blinking */
532 #define PCI_EXP_SLTCTL_PWR_IND_OFF 0x0300 /* Power Indicator off */
533 #define PCI_EXP_SLTCTL_PCC 0x0400 /* Power Controller Control */
534 #define PCI_EXP_SLTCTL_PWR_ON 0x0000 /* Power On */
535 #define PCI_EXP_SLTCTL_PWR_OFF 0x0400 /* Power Off */
536 #define PCI_EXP_SLTCTL_EIC 0x0800 /* Electromechanical Interlock Control */
537 #define PCI_EXP_SLTCTL_DLLSCE 0x1000 /* Data Link Layer State Changed Enable */
538 #define PCI_EXP_SLTSTA 26 /* Slot Status */
539 #define PCI_EXP_SLTSTA_ABP 0x0001 /* Attention Button Pressed */
540 #define PCI_EXP_SLTSTA_PFD 0x0002 /* Power Fault Detected */
541 #define PCI_EXP_SLTSTA_MRLSC 0x0004 /* MRL Sensor Changed */
542 #define PCI_EXP_SLTSTA_PDC 0x0008 /* Presence Detect Changed */
543 #define PCI_EXP_SLTSTA_CC 0x0010 /* Command Completed */
544 #define PCI_EXP_SLTSTA_MRLSS 0x0020 /* MRL Sensor State */
545 #define PCI_EXP_SLTSTA_PDS 0x0040 /* Presence Detect State */
546 #define PCI_EXP_SLTSTA_EIS 0x0080 /* Electromechanical Interlock Status */
547 #define PCI_EXP_SLTSTA_DLLSC 0x0100 /* Data Link Layer State Changed */
548 #define PCI_EXP_RTCTL 28 /* Root Control */
549 #define PCI_EXP_RTCTL_SECEE 0x0001 /* System Error on Correctable Error */
550 #define PCI_EXP_RTCTL_SENFEE 0x0002 /* System Error on Non-Fatal Error */
551 #define PCI_EXP_RTCTL_SEFEE 0x0004 /* System Error on Fatal Error */
552 #define PCI_EXP_RTCTL_PMEIE 0x0008 /* PME Interrupt Enable */
553 #define PCI_EXP_RTCTL_CRSSVE 0x0010 /* CRS Software Visibility Enable */
554 #define PCI_EXP_RTCAP 30 /* Root Capabilities */
555 #define PCI_EXP_RTSTA 32 /* Root Status */
556 #define PCI_EXP_RTSTA_PME 0x00010000 /* PME status */
557 #define PCI_EXP_RTSTA_PENDING 0x00020000 /* PME pending */
559 * The Device Capabilities 2, Device Status 2, Device Control 2,
560 * Link Capabilities 2, Link Status 2, Link Control 2,
561 * Slot Capabilities 2, Slot Status 2, and Slot Control 2 registers
562 * are only present on devices with PCIe Capability version 2.
563 * Use pcie_capability_read_word() and similar interfaces to use them
566 #define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */
567 #define PCI_EXP_DEVCAP2_ARI 0x00000020 /* Alternative Routing-ID */
568 #define PCI_EXP_DEVCAP2_LTR 0x00000800 /* Latency tolerance reporting */
569 #define PCI_EXP_DEVCAP2_OBFF_MASK 0x000c0000 /* OBFF support mechanism */
570 #define PCI_EXP_DEVCAP2_OBFF_MSG 0x00040000 /* New message signaling */
571 #define PCI_EXP_DEVCAP2_OBFF_WAKE 0x00080000 /* Re-use WAKE# for OBFF */
572 #define PCI_EXP_DEVCTL2 40 /* Device Control 2 */
573 #define PCI_EXP_DEVCTL2_COMP_TIMEOUT 0x000f /* Completion Timeout Value */
574 #define PCI_EXP_DEVCTL2_ARI 0x0020 /* Alternative Routing-ID */
575 #define PCI_EXP_DEVCTL2_IDO_REQ_EN 0x0100 /* Allow IDO for requests */
576 #define PCI_EXP_DEVCTL2_IDO_CMP_EN 0x0200 /* Allow IDO for completions */
577 #define PCI_EXP_DEVCTL2_LTR_EN 0x0400 /* Enable LTR mechanism */
578 #define PCI_EXP_DEVCTL2_OBFF_MSGA_EN 0x2000 /* Enable OBFF Message type A */
579 #define PCI_EXP_DEVCTL2_OBFF_MSGB_EN 0x4000 /* Enable OBFF Message type B */
580 #define PCI_EXP_DEVCTL2_OBFF_WAKE_EN 0x6000 /* OBFF using WAKE# signaling */
581 #define PCI_EXP_DEVSTA2 42 /* Device Status 2 */
582 #define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 44 /* v2 endpoints end here */
583 #define PCI_EXP_LNKCAP2 44 /* Link Capabilities 2 */
584 #define PCI_EXP_LNKCAP2_SLS_2_5GB 0x00000002 /* Supported Speed 2.5GT/s */
585 #define PCI_EXP_LNKCAP2_SLS_5_0GB 0x00000004 /* Supported Speed 5.0GT/s */
586 #define PCI_EXP_LNKCAP2_SLS_8_0GB 0x00000008 /* Supported Speed 8.0GT/s */
587 #define PCI_EXP_LNKCAP2_CROSSLINK 0x00000100 /* Crosslink supported */
588 #define PCI_EXP_LNKCTL2 48 /* Link Control 2 */
589 #define PCI_EXP_LNKSTA2 50 /* Link Status 2 */
590 #define PCI_EXP_SLTCAP2 52 /* Slot Capabilities 2 */
591 #define PCI_EXP_SLTCTL2 56 /* Slot Control 2 */
592 #define PCI_EXP_SLTSTA2 58 /* Slot Status 2 */
594 /* Extended Capabilities (PCI-X 2.0 and Express) */
595 #define PCI_EXT_CAP_ID(header) (header & 0x0000ffff)
596 #define PCI_EXT_CAP_VER(header) ((header >> 16) & 0xf)
597 #define PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc)
599 #define PCI_EXT_CAP_ID_ERR 0x01 /* Advanced Error Reporting */
600 #define PCI_EXT_CAP_ID_VC 0x02 /* Virtual Channel Capability */
601 #define PCI_EXT_CAP_ID_DSN 0x03 /* Device Serial Number */
602 #define PCI_EXT_CAP_ID_PWR 0x04 /* Power Budgeting */
603 #define PCI_EXT_CAP_ID_RCLD 0x05 /* Root Complex Link Declaration */
604 #define PCI_EXT_CAP_ID_RCILC 0x06 /* Root Complex Internal Link Control */
605 #define PCI_EXT_CAP_ID_RCEC 0x07 /* Root Complex Event Collector */
606 #define PCI_EXT_CAP_ID_MFVC 0x08 /* Multi-Function VC Capability */
607 #define PCI_EXT_CAP_ID_VC9 0x09 /* same as _VC */
608 #define PCI_EXT_CAP_ID_RCRB 0x0A /* Root Complex RB? */
609 #define PCI_EXT_CAP_ID_VNDR 0x0B /* Vendor-Specific */
610 #define PCI_EXT_CAP_ID_CAC 0x0C /* Config Access - obsolete */
611 #define PCI_EXT_CAP_ID_ACS 0x0D /* Access Control Services */
612 #define PCI_EXT_CAP_ID_ARI 0x0E /* Alternate Routing ID */
613 #define PCI_EXT_CAP_ID_ATS 0x0F /* Address Translation Services */
614 #define PCI_EXT_CAP_ID_SRIOV 0x10 /* Single Root I/O Virtualization */
615 #define PCI_EXT_CAP_ID_MRIOV 0x11 /* Multi Root I/O Virtualization */
616 #define PCI_EXT_CAP_ID_MCAST 0x12 /* Multicast */
617 #define PCI_EXT_CAP_ID_PRI 0x13 /* Page Request Interface */
618 #define PCI_EXT_CAP_ID_AMD_XXX 0x14 /* Reserved for AMD */
619 #define PCI_EXT_CAP_ID_REBAR 0x15 /* Resizable BAR */
620 #define PCI_EXT_CAP_ID_DPA 0x16 /* Dynamic Power Allocation */
621 #define PCI_EXT_CAP_ID_TPH 0x17 /* TPH Requester */
622 #define PCI_EXT_CAP_ID_LTR 0x18 /* Latency Tolerance Reporting */
623 #define PCI_EXT_CAP_ID_SECPCI 0x19 /* Secondary PCIe Capability */
624 #define PCI_EXT_CAP_ID_PMUX 0x1A /* Protocol Multiplexing */
625 #define PCI_EXT_CAP_ID_PASID 0x1B /* Process Address Space ID */
626 #define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PASID
628 #define PCI_EXT_CAP_DSN_SIZEOF 12
629 #define PCI_EXT_CAP_MCAST_ENDPOINT_SIZEOF 40
631 /* Advanced Error Reporting */
632 #define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */
633 #define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */
634 #define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
635 #define PCI_ERR_UNC_SURPDN 0x00000020 /* Surprise Down */
636 #define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
637 #define PCI_ERR_UNC_FCP 0x00002000 /* Flow Control Protocol */
638 #define PCI_ERR_UNC_COMP_TIME 0x00004000 /* Completion Timeout */
639 #define PCI_ERR_UNC_COMP_ABORT 0x00008000 /* Completer Abort */
640 #define PCI_ERR_UNC_UNX_COMP 0x00010000 /* Unexpected Completion */
641 #define PCI_ERR_UNC_RX_OVER 0x00020000 /* Receiver Overflow */
642 #define PCI_ERR_UNC_MALF_TLP 0x00040000 /* Malformed TLP */
643 #define PCI_ERR_UNC_ECRC 0x00080000 /* ECRC Error Status */
644 #define PCI_ERR_UNC_UNSUP 0x00100000 /* Unsupported Request */
645 #define PCI_ERR_UNC_ACSV 0x00200000 /* ACS Violation */
646 #define PCI_ERR_UNC_INTN 0x00400000 /* internal error */
647 #define PCI_ERR_UNC_MCBTLP 0x00800000 /* MC blocked TLP */
648 #define PCI_ERR_UNC_ATOMEG 0x01000000 /* Atomic egress blocked */
649 #define PCI_ERR_UNC_TLPPRE 0x02000000 /* TLP prefix blocked */
650 #define PCI_ERR_UNCOR_MASK 8 /* Uncorrectable Error Mask */
651 /* Same bits as above */
652 #define PCI_ERR_UNCOR_SEVER 12 /* Uncorrectable Error Severity */
653 /* Same bits as above */
654 #define PCI_ERR_COR_STATUS 16 /* Correctable Error Status */
655 #define PCI_ERR_COR_RCVR 0x00000001 /* Receiver Error Status */
656 #define PCI_ERR_COR_BAD_TLP 0x00000040 /* Bad TLP Status */
657 #define PCI_ERR_COR_BAD_DLLP 0x00000080 /* Bad DLLP Status */
658 #define PCI_ERR_COR_REP_ROLL 0x00000100 /* REPLAY_NUM Rollover */
659 #define PCI_ERR_COR_REP_TIMER 0x00001000 /* Replay Timer Timeout */
660 #define PCI_ERR_COR_ADV_NFAT 0x00002000 /* Advisory Non-Fatal */
661 #define PCI_ERR_COR_INTERNAL 0x00004000 /* Corrected Internal */
662 #define PCI_ERR_COR_LOG_OVER 0x00008000 /* Header Log Overflow */
663 #define PCI_ERR_COR_MASK 20 /* Correctable Error Mask */
664 /* Same bits as above */
665 #define PCI_ERR_CAP 24 /* Advanced Error Capabilities */
666 #define PCI_ERR_CAP_FEP(x) ((x) & 31) /* First Error Pointer */
667 #define PCI_ERR_CAP_ECRC_GENC 0x00000020 /* ECRC Generation Capable */
668 #define PCI_ERR_CAP_ECRC_GENE 0x00000040 /* ECRC Generation Enable */
669 #define PCI_ERR_CAP_ECRC_CHKC 0x00000080 /* ECRC Check Capable */
670 #define PCI_ERR_CAP_ECRC_CHKE 0x00000100 /* ECRC Check Enable */
671 #define PCI_ERR_HEADER_LOG 28 /* Header Log Register (16 bytes) */
672 #define PCI_ERR_ROOT_COMMAND 44 /* Root Error Command */
673 /* Correctable Err Reporting Enable */
674 #define PCI_ERR_ROOT_CMD_COR_EN 0x00000001
675 /* Non-fatal Err Reporting Enable */
676 #define PCI_ERR_ROOT_CMD_NONFATAL_EN 0x00000002
677 /* Fatal Err Reporting Enable */
678 #define PCI_ERR_ROOT_CMD_FATAL_EN 0x00000004
679 #define PCI_ERR_ROOT_STATUS 48
680 #define PCI_ERR_ROOT_COR_RCV 0x00000001 /* ERR_COR Received */
681 /* Multi ERR_COR Received */
682 #define PCI_ERR_ROOT_MULTI_COR_RCV 0x00000002
683 /* ERR_FATAL/NONFATAL Received */
684 #define PCI_ERR_ROOT_UNCOR_RCV 0x00000004
685 /* Multi ERR_FATAL/NONFATAL Received */
686 #define PCI_ERR_ROOT_MULTI_UNCOR_RCV 0x00000008
687 #define PCI_ERR_ROOT_FIRST_FATAL 0x00000010 /* First Fatal */
688 #define PCI_ERR_ROOT_NONFATAL_RCV 0x00000020 /* Non-Fatal Received */
689 #define PCI_ERR_ROOT_FATAL_RCV 0x00000040 /* Fatal Received */
690 #define PCI_ERR_ROOT_ERR_SRC 52 /* Error Source Identification */
692 /* Virtual Channel */
693 #define PCI_VC_PORT_CAP1 4
694 #define PCI_VC_CAP1_EVCC 0x00000007 /* extended VC count */
695 #define PCI_VC_CAP1_LPEVCC 0x00000070 /* low prio extended VC count */
696 #define PCI_VC_CAP1_ARB_SIZE 0x00000c00
697 #define PCI_VC_PORT_CAP2 8
698 #define PCI_VC_CAP2_32_PHASE 0x00000002
699 #define PCI_VC_CAP2_64_PHASE 0x00000004
700 #define PCI_VC_CAP2_128_PHASE 0x00000008
701 #define PCI_VC_CAP2_ARB_OFF 0xff000000
702 #define PCI_VC_PORT_CTRL 12
703 #define PCI_VC_PORT_CTRL_LOAD_TABLE 0x00000001
704 #define PCI_VC_PORT_STATUS 14
705 #define PCI_VC_PORT_STATUS_TABLE 0x00000001
706 #define PCI_VC_RES_CAP 16
707 #define PCI_VC_RES_CAP_32_PHASE 0x00000002
708 #define PCI_VC_RES_CAP_64_PHASE 0x00000004
709 #define PCI_VC_RES_CAP_128_PHASE 0x00000008
710 #define PCI_VC_RES_CAP_128_PHASE_TB 0x00000010
711 #define PCI_VC_RES_CAP_256_PHASE 0x00000020
712 #define PCI_VC_RES_CAP_ARB_OFF 0xff000000
713 #define PCI_VC_RES_CTRL 20
714 #define PCI_VC_RES_CTRL_LOAD_TABLE 0x00010000
715 #define PCI_VC_RES_CTRL_ARB_SELECT 0x000e0000
716 #define PCI_VC_RES_CTRL_ID 0x07000000
717 #define PCI_VC_RES_CTRL_ENABLE 0x80000000
718 #define PCI_VC_RES_STATUS 26
719 #define PCI_VC_RES_STATUS_TABLE 0x00000001
720 #define PCI_VC_RES_STATUS_NEGO 0x00000002
721 #define PCI_CAP_VC_BASE_SIZEOF 0x10
722 #define PCI_CAP_VC_PER_VC_SIZEOF 0x0C
724 /* Power Budgeting */
725 #define PCI_PWR_DSR 4 /* Data Select Register */
726 #define PCI_PWR_DATA 8 /* Data Register */
727 #define PCI_PWR_DATA_BASE(x) ((x) & 0xff) /* Base Power */
728 #define PCI_PWR_DATA_SCALE(x) (((x) >> 8) & 3) /* Data Scale */
729 #define PCI_PWR_DATA_PM_SUB(x) (((x) >> 10) & 7) /* PM Sub State */
730 #define PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */
731 #define PCI_PWR_DATA_TYPE(x) (((x) >> 15) & 7) /* Type */
732 #define PCI_PWR_DATA_RAIL(x) (((x) >> 18) & 7) /* Power Rail */
733 #define PCI_PWR_CAP 12 /* Capability */
734 #define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
735 #define PCI_EXT_CAP_PWR_SIZEOF 16
737 /* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */
738 #define PCI_VNDR_HEADER 4 /* Vendor-Specific Header */
739 #define PCI_VNDR_HEADER_ID(x) ((x) & 0xffff)
740 #define PCI_VNDR_HEADER_REV(x) (((x) >> 16) & 0xf)
741 #define PCI_VNDR_HEADER_LEN(x) (((x) >> 20) & 0xfff)
744 * HyperTransport sub capability types
746 * Unfortunately there are both 3 bit and 5 bit capability types defined
747 * in the HT spec, catering for that is a little messy. You probably don't
748 * want to use these directly, just use pci_find_ht_capability() and it
749 * will do the right thing for you.
751 #define HT_3BIT_CAP_MASK 0xE0
752 #define HT_CAPTYPE_SLAVE 0x00 /* Slave/Primary link configuration */
753 #define HT_CAPTYPE_HOST 0x20 /* Host/Secondary link configuration */
755 #define HT_5BIT_CAP_MASK 0xF8
756 #define HT_CAPTYPE_IRQ 0x80 /* IRQ Configuration */
757 #define HT_CAPTYPE_REMAPPING_40 0xA0 /* 40 bit address remapping */
758 #define HT_CAPTYPE_REMAPPING_64 0xA2 /* 64 bit address remapping */
759 #define HT_CAPTYPE_UNITID_CLUMP 0x90 /* Unit ID clumping */
760 #define HT_CAPTYPE_EXTCONF 0x98 /* Extended Configuration Space Access */
761 #define HT_CAPTYPE_MSI_MAPPING 0xA8 /* MSI Mapping Capability */
762 #define HT_MSI_FLAGS 0x02 /* Offset to flags */
763 #define HT_MSI_FLAGS_ENABLE 0x1 /* Mapping enable */
764 #define HT_MSI_FLAGS_FIXED 0x2 /* Fixed mapping only */
765 #define HT_MSI_FIXED_ADDR 0x00000000FEE00000ULL /* Fixed addr */
766 #define HT_MSI_ADDR_LO 0x04 /* Offset to low addr bits */
767 #define HT_MSI_ADDR_LO_MASK 0xFFF00000 /* Low address bit mask */
768 #define HT_MSI_ADDR_HI 0x08 /* Offset to high addr bits */
769 #define HT_CAPTYPE_DIRECT_ROUTE 0xB0 /* Direct routing configuration */
770 #define HT_CAPTYPE_VCSET 0xB8 /* Virtual Channel configuration */
771 #define HT_CAPTYPE_ERROR_RETRY 0xC0 /* Retry on error configuration */
772 #define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 HyperTransport configuration */
773 #define HT_CAPTYPE_PM 0xE0 /* HyperTransport power management configuration */
774 #define HT_CAP_SIZEOF_LONG 28 /* slave & primary */
775 #define HT_CAP_SIZEOF_SHORT 24 /* host & secondary */
777 /* Alternative Routing-ID Interpretation */
778 #define PCI_ARI_CAP 0x04 /* ARI Capability Register */
779 #define PCI_ARI_CAP_MFVC 0x0001 /* MFVC Function Groups Capability */
780 #define PCI_ARI_CAP_ACS 0x0002 /* ACS Function Groups Capability */
781 #define PCI_ARI_CAP_NFN(x) (((x) >> 8) & 0xff) /* Next Function Number */
782 #define PCI_ARI_CTRL 0x06 /* ARI Control Register */
783 #define PCI_ARI_CTRL_MFVC 0x0001 /* MFVC Function Groups Enable */
784 #define PCI_ARI_CTRL_ACS 0x0002 /* ACS Function Groups Enable */
785 #define PCI_ARI_CTRL_FG(x) (((x) >> 4) & 7) /* Function Group */
786 #define PCI_EXT_CAP_ARI_SIZEOF 8
788 /* Address Translation Service */
789 #define PCI_ATS_CAP 0x04 /* ATS Capability Register */
790 #define PCI_ATS_CAP_QDEP(x) ((x) & 0x1f) /* Invalidate Queue Depth */
791 #define PCI_ATS_MAX_QDEP 32 /* Max Invalidate Queue Depth */
792 #define PCI_ATS_CTRL 0x06 /* ATS Control Register */
793 #define PCI_ATS_CTRL_ENABLE 0x8000 /* ATS Enable */
794 #define PCI_ATS_CTRL_STU(x) ((x) & 0x1f) /* Smallest Translation Unit */
795 #define PCI_ATS_MIN_STU 12 /* shift of minimum STU block */
796 #define PCI_EXT_CAP_ATS_SIZEOF 8
798 /* Page Request Interface */
799 #define PCI_PRI_CTRL 0x04 /* PRI control register */
800 #define PCI_PRI_CTRL_ENABLE 0x01 /* Enable */
801 #define PCI_PRI_CTRL_RESET 0x02 /* Reset */
802 #define PCI_PRI_STATUS 0x06 /* PRI status register */
803 #define PCI_PRI_STATUS_RF 0x001 /* Response Failure */
804 #define PCI_PRI_STATUS_UPRGI 0x002 /* Unexpected PRG index */
805 #define PCI_PRI_STATUS_STOPPED 0x100 /* PRI Stopped */
806 #define PCI_PRI_MAX_REQ 0x08 /* PRI max reqs supported */
807 #define PCI_PRI_ALLOC_REQ 0x0c /* PRI max reqs allowed */
808 #define PCI_EXT_CAP_PRI_SIZEOF 16
810 /* Process Address Space ID */
811 #define PCI_PASID_CAP 0x04 /* PASID feature register */
812 #define PCI_PASID_CAP_EXEC 0x02 /* Exec permissions Supported */
813 #define PCI_PASID_CAP_PRIV 0x04 /* Privilege Mode Supported */
814 #define PCI_PASID_CTRL 0x06 /* PASID control register */
815 #define PCI_PASID_CTRL_ENABLE 0x01 /* Enable bit */
816 #define PCI_PASID_CTRL_EXEC 0x02 /* Exec permissions Enable */
817 #define PCI_PASID_CTRL_PRIV 0x04 /* Privilege Mode Enable */
818 #define PCI_EXT_CAP_PASID_SIZEOF 8
820 /* Single Root I/O Virtualization */
821 #define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */
822 #define PCI_SRIOV_CAP_VFM 0x01 /* VF Migration Capable */
823 #define PCI_SRIOV_CAP_INTR(x) ((x) >> 21) /* Interrupt Message Number */
824 #define PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */
825 #define PCI_SRIOV_CTRL_VFE 0x01 /* VF Enable */
826 #define PCI_SRIOV_CTRL_VFM 0x02 /* VF Migration Enable */
827 #define PCI_SRIOV_CTRL_INTR 0x04 /* VF Migration Interrupt Enable */
828 #define PCI_SRIOV_CTRL_MSE 0x08 /* VF Memory Space Enable */
829 #define PCI_SRIOV_CTRL_ARI 0x10 /* ARI Capable Hierarchy */
830 #define PCI_SRIOV_STATUS 0x0a /* SR-IOV Status */
831 #define PCI_SRIOV_STATUS_VFM 0x01 /* VF Migration Status */
832 #define PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */
833 #define PCI_SRIOV_TOTAL_VF 0x0e /* Total VFs */
834 #define PCI_SRIOV_NUM_VF 0x10 /* Number of VFs */
835 #define PCI_SRIOV_FUNC_LINK 0x12 /* Function Dependency Link */
836 #define PCI_SRIOV_VF_OFFSET 0x14 /* First VF Offset */
837 #define PCI_SRIOV_VF_STRIDE 0x16 /* Following VF Stride */
838 #define PCI_SRIOV_VF_DID 0x1a /* VF Device ID */
839 #define PCI_SRIOV_SUP_PGSIZE 0x1c /* Supported Page Sizes */
840 #define PCI_SRIOV_SYS_PGSIZE 0x20 /* System Page Size */
841 #define PCI_SRIOV_BAR 0x24 /* VF BAR0 */
842 #define PCI_SRIOV_NUM_BARS 6 /* Number of VF BARs */
843 #define PCI_SRIOV_VFM 0x3c /* VF Migration State Array Offset*/
844 #define PCI_SRIOV_VFM_BIR(x) ((x) & 7) /* State BIR */
845 #define PCI_SRIOV_VFM_OFFSET(x) ((x) & ~7) /* State Offset */
846 #define PCI_SRIOV_VFM_UA 0x0 /* Inactive.Unavailable */
847 #define PCI_SRIOV_VFM_MI 0x1 /* Dormant.MigrateIn */
848 #define PCI_SRIOV_VFM_MO 0x2 /* Active.MigrateOut */
849 #define PCI_SRIOV_VFM_AV 0x3 /* Active.Available */
850 #define PCI_EXT_CAP_SRIOV_SIZEOF 64
852 #define PCI_LTR_MAX_SNOOP_LAT 0x4
853 #define PCI_LTR_MAX_NOSNOOP_LAT 0x6
854 #define PCI_LTR_VALUE_MASK 0x000003ff
855 #define PCI_LTR_SCALE_MASK 0x00001c00
856 #define PCI_LTR_SCALE_SHIFT 10
857 #define PCI_EXT_CAP_LTR_SIZEOF 8
859 /* Access Control Service */
860 #define PCI_ACS_CAP 0x04 /* ACS Capability Register */
861 #define PCI_ACS_SV 0x01 /* Source Validation */
862 #define PCI_ACS_TB 0x02 /* Translation Blocking */
863 #define PCI_ACS_RR 0x04 /* P2P Request Redirect */
864 #define PCI_ACS_CR 0x08 /* P2P Completion Redirect */
865 #define PCI_ACS_UF 0x10 /* Upstream Forwarding */
866 #define PCI_ACS_EC 0x20 /* P2P Egress Control */
867 #define PCI_ACS_DT 0x40 /* Direct Translated P2P */
868 #define PCI_ACS_EGRESS_BITS 0x05 /* ACS Egress Control Vector Size */
869 #define PCI_ACS_CTRL 0x06 /* ACS Control Register */
870 #define PCI_ACS_EGRESS_CTL_V 0x08 /* ACS Egress Control Vector */
872 #define PCI_VSEC_HDR 4 /* extended cap - vendor-specific */
873 #define PCI_VSEC_HDR_LEN_SHIFT 20 /* shift for length field */
875 /* SATA capability */
876 #define PCI_SATA_REGS 4 /* SATA REGs specifier */
877 #define PCI_SATA_REGS_MASK 0xF /* location - BAR#/inline */
878 #define PCI_SATA_REGS_INLINE 0xF /* REGS in config space */
879 #define PCI_SATA_SIZEOF_SHORT 8
880 #define PCI_SATA_SIZEOF_LONG 16
883 #define PCI_REBAR_CTRL 8 /* control register */
884 #define PCI_REBAR_CTRL_NBAR_MASK (7 << 5) /* mask for # bars */
885 #define PCI_REBAR_CTRL_NBAR_SHIFT 5 /* shift for # bars */
887 /* Dynamic Power Allocation */
888 #define PCI_DPA_CAP 4 /* capability register */
889 #define PCI_DPA_CAP_SUBSTATE_MASK 0x1F /* # substates - 1 */
890 #define PCI_DPA_BASE_SIZEOF 16 /* size with 0 substates */
893 #define PCI_TPH_CAP 4 /* capability register */
894 #define PCI_TPH_CAP_LOC_MASK 0x600 /* location mask */
895 #define PCI_TPH_LOC_NONE 0x000 /* no location */
896 #define PCI_TPH_LOC_CAP 0x200 /* in capability */
897 #define PCI_TPH_LOC_MSIX 0x400 /* in MSI-X */
898 #define PCI_TPH_CAP_ST_MASK 0x07FF0000 /* st table mask */
899 #define PCI_TPH_CAP_ST_SHIFT 16 /* st table shift */
900 #define PCI_TPH_BASE_SIZEOF 12 /* size with no st table */
902 #endif /* LINUX_PCI_REGS_H */
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