1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
4 * Copyright 1994, Drew Eckhardt
5 * Copyright 1997--1999 Martin Mares <mj@ucw.cz>
7 * For more information, please consult the following manuals (look at
8 * http://www.pcisig.com/ for how to get them):
10 * PCI BIOS Specification
11 * PCI Local Bus Specification
12 * PCI to PCI Bridge Specification
13 * PCI System Design Guide
15 * For HyperTransport information, please consult the following manuals
16 * from http://www.hypertransport.org :
18 * The HyperTransport I/O Link Specification
21 #ifndef LINUX_PCI_REGS_H
22 #define LINUX_PCI_REGS_H
25 * Conventional PCI and PCI-X Mode 1 devices have 256 bytes of
26 * configuration space. PCI-X Mode 2 and PCIe devices have 4096 bytes of
27 * configuration space.
29 #define PCI_CFG_SPACE_SIZE 256
30 #define PCI_CFG_SPACE_EXP_SIZE 4096
33 * Under PCI, each device has 256 bytes of configuration address space,
34 * of which the first 64 bytes are standardized as follows:
36 #define PCI_STD_HEADER_SIZEOF 64
37 #define PCI_STD_NUM_BARS 6 /* Number of standard BARs */
38 #define PCI_VENDOR_ID 0x00 /* 16 bits */
39 #define PCI_DEVICE_ID 0x02 /* 16 bits */
40 #define PCI_COMMAND 0x04 /* 16 bits */
41 #define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
42 #define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
43 #define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
44 #define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
45 #define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
46 #define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
47 #define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
48 #define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */
49 #define PCI_COMMAND_SERR 0x100 /* Enable SERR */
50 #define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
51 #define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
53 #define PCI_STATUS 0x06 /* 16 bits */
54 #define PCI_STATUS_IMM_READY 0x01 /* Immediate Readiness */
55 #define PCI_STATUS_INTERRUPT 0x08 /* Interrupt status */
56 #define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
57 #define PCI_STATUS_66MHZ 0x20 /* Support 66 MHz PCI 2.1 bus */
58 #define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
59 #define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */
60 #define PCI_STATUS_PARITY 0x100 /* Detected parity error */
61 #define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */
62 #define PCI_STATUS_DEVSEL_FAST 0x000
63 #define PCI_STATUS_DEVSEL_MEDIUM 0x200
64 #define PCI_STATUS_DEVSEL_SLOW 0x400
65 #define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
66 #define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
67 #define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
68 #define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
69 #define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */
71 #define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 revision */
72 #define PCI_REVISION_ID 0x08 /* Revision ID */
73 #define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
74 #define PCI_CLASS_DEVICE 0x0a /* Device class */
76 #define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
77 #define PCI_LATENCY_TIMER 0x0d /* 8 bits */
78 #define PCI_HEADER_TYPE 0x0e /* 8 bits */
79 #define PCI_HEADER_TYPE_MASK 0x7f
80 #define PCI_HEADER_TYPE_NORMAL 0
81 #define PCI_HEADER_TYPE_BRIDGE 1
82 #define PCI_HEADER_TYPE_CARDBUS 2
84 #define PCI_BIST 0x0f /* 8 bits */
85 #define PCI_BIST_CODE_MASK 0x0f /* Return result */
86 #define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */
87 #define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */
90 * Base addresses specify locations in memory or I/O space.
91 * Decoded size can be determined by writing a value of
92 * 0xffffffff to the register, and reading it back. Only
95 #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
96 #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */
97 #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */
98 #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
99 #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
100 #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
101 #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */
102 #define PCI_BASE_ADDRESS_SPACE_IO 0x01
103 #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
104 #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
105 #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
106 #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
107 #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
108 #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
109 #define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL)
110 #define PCI_BASE_ADDRESS_IO_MASK (~0x03UL)
111 /* bit 1 is reserved if address_space = 1 */
113 /* Header type 0 (normal devices) */
114 #define PCI_CARDBUS_CIS 0x28
115 #define PCI_SUBSYSTEM_VENDOR_ID 0x2c
116 #define PCI_SUBSYSTEM_ID 0x2e
117 #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
118 #define PCI_ROM_ADDRESS_ENABLE 0x01
119 #define PCI_ROM_ADDRESS_MASK (~0x7ffU)
121 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
123 /* 0x35-0x3b are reserved */
124 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
125 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
126 #define PCI_MIN_GNT 0x3e /* 8 bits */
127 #define PCI_MAX_LAT 0x3f /* 8 bits */
129 /* Header type 1 (PCI-to-PCI bridges) */
130 #define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
131 #define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
132 #define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
133 #define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
134 #define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
135 #define PCI_IO_LIMIT 0x1d
136 #define PCI_IO_RANGE_TYPE_MASK 0x0fUL /* I/O bridging type */
137 #define PCI_IO_RANGE_TYPE_16 0x00
138 #define PCI_IO_RANGE_TYPE_32 0x01
139 #define PCI_IO_RANGE_MASK (~0x0fUL) /* Standard 4K I/O windows */
140 #define PCI_IO_1K_RANGE_MASK (~0x03UL) /* Intel 1K I/O windows */
141 #define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
142 #define PCI_MEMORY_BASE 0x20 /* Memory range behind */
143 #define PCI_MEMORY_LIMIT 0x22
144 #define PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL
145 #define PCI_MEMORY_RANGE_MASK (~0x0fUL)
146 #define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
147 #define PCI_PREF_MEMORY_LIMIT 0x26
148 #define PCI_PREF_RANGE_TYPE_MASK 0x0fUL
149 #define PCI_PREF_RANGE_TYPE_32 0x00
150 #define PCI_PREF_RANGE_TYPE_64 0x01
151 #define PCI_PREF_RANGE_MASK (~0x0fUL)
152 #define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
153 #define PCI_PREF_LIMIT_UPPER32 0x2c
154 #define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
155 #define PCI_IO_LIMIT_UPPER16 0x32
156 /* 0x34 same as for htype 0 */
157 /* 0x35-0x3b is reserved */
158 #define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
159 /* 0x3c-0x3d are same as for htype 0 */
160 #define PCI_BRIDGE_CONTROL 0x3e
161 #define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
162 #define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
163 #define PCI_BRIDGE_CTL_ISA 0x04 /* Enable ISA mode */
164 #define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
165 #define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
166 #define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
167 #define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
169 /* Header type 2 (CardBus bridges) */
170 #define PCI_CB_CAPABILITY_LIST 0x14
172 #define PCI_CB_SEC_STATUS 0x16 /* Secondary status */
173 #define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */
174 #define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */
175 #define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */
176 #define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */
177 #define PCI_CB_MEMORY_BASE_0 0x1c
178 #define PCI_CB_MEMORY_LIMIT_0 0x20
179 #define PCI_CB_MEMORY_BASE_1 0x24
180 #define PCI_CB_MEMORY_LIMIT_1 0x28
181 #define PCI_CB_IO_BASE_0 0x2c
182 #define PCI_CB_IO_BASE_0_HI 0x2e
183 #define PCI_CB_IO_LIMIT_0 0x30
184 #define PCI_CB_IO_LIMIT_0_HI 0x32
185 #define PCI_CB_IO_BASE_1 0x34
186 #define PCI_CB_IO_BASE_1_HI 0x36
187 #define PCI_CB_IO_LIMIT_1 0x38
188 #define PCI_CB_IO_LIMIT_1_HI 0x3a
189 #define PCI_CB_IO_RANGE_MASK (~0x03UL)
190 /* 0x3c-0x3d are same as for htype 0 */
191 #define PCI_CB_BRIDGE_CONTROL 0x3e
192 #define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */
193 #define PCI_CB_BRIDGE_CTL_SERR 0x02
194 #define PCI_CB_BRIDGE_CTL_ISA 0x04
195 #define PCI_CB_BRIDGE_CTL_VGA 0x08
196 #define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
197 #define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */
198 #define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */
199 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */
200 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
201 #define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400
202 #define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
203 #define PCI_CB_SUBSYSTEM_ID 0x42
204 #define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */
205 /* 0x48-0x7f reserved */
207 /* Capability lists */
209 #define PCI_CAP_LIST_ID 0 /* Capability ID */
210 #define PCI_CAP_ID_PM 0x01 /* Power Management */
211 #define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
212 #define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
213 #define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
214 #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
215 #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
216 #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */
217 #define PCI_CAP_ID_HT 0x08 /* HyperTransport */
218 #define PCI_CAP_ID_VNDR 0x09 /* Vendor-Specific */
219 #define PCI_CAP_ID_DBG 0x0A /* Debug port */
220 #define PCI_CAP_ID_CCRC 0x0B /* CompactPCI Central Resource Control */
221 #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */
222 #define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */
223 #define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */
224 #define PCI_CAP_ID_SECDEV 0x0F /* Secure Device */
225 #define PCI_CAP_ID_EXP 0x10 /* PCI Express */
226 #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */
227 #define PCI_CAP_ID_SATA 0x12 /* SATA Data/Index Conf. */
228 #define PCI_CAP_ID_AF 0x13 /* PCI Advanced Features */
229 #define PCI_CAP_ID_EA 0x14 /* PCI Enhanced Allocation */
230 #define PCI_CAP_ID_MAX PCI_CAP_ID_EA
231 #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
232 #define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
233 #define PCI_CAP_SIZEOF 4
235 /* Power Management Registers */
237 #define PCI_PM_PMC 2 /* PM Capabilities Register */
238 #define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
239 #define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
240 #define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */
241 #define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
242 #define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxiliary power support mask */
243 #define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
244 #define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
245 #define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
246 #define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */
247 #define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */
248 #define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */
249 #define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */
250 #define PCI_PM_CAP_PME_D3hot 0x4000 /* PME# from D3 (hot) */
251 #define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
252 #define PCI_PM_CAP_PME_SHIFT 11 /* Start of the PME Mask in PMC */
253 #define PCI_PM_CTRL 4 /* PM control and status register */
254 #define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
255 #define PCI_PM_CTRL_NO_SOFT_RESET 0x0008 /* No reset for D3hot->D0 */
256 #define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
257 #define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
258 #define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
259 #define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
260 #define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
261 #define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
262 #define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
263 #define PCI_PM_DATA_REGISTER 7 /* (??) */
264 #define PCI_PM_SIZEOF 8
268 #define PCI_AGP_VERSION 2 /* BCD version number */
269 #define PCI_AGP_RFU 3 /* Rest of capability flags */
270 #define PCI_AGP_STATUS 4 /* Status register */
271 #define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
272 #define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
273 #define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
274 #define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
275 #define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
276 #define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
277 #define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
278 #define PCI_AGP_COMMAND 8 /* Control register */
279 #define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
280 #define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
281 #define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
282 #define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
283 #define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
284 #define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
285 #define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */
286 #define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */
287 #define PCI_AGP_SIZEOF 12
289 /* Vital Product Data */
291 #define PCI_VPD_ADDR 2 /* Address to access (15 bits!) */
292 #define PCI_VPD_ADDR_MASK 0x7fff /* Address mask */
293 #define PCI_VPD_ADDR_F 0x8000 /* Write 0, 1 indicates completion */
294 #define PCI_VPD_DATA 4 /* 32-bits of data returned here */
295 #define PCI_CAP_VPD_SIZEOF 8
297 /* Slot Identification */
299 #define PCI_SID_ESR 2 /* Expansion Slot Register */
300 #define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
301 #define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
302 #define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
304 /* Message Signaled Interrupt registers */
306 #define PCI_MSI_FLAGS 0x02 /* Message Control */
307 #define PCI_MSI_FLAGS_ENABLE 0x0001 /* MSI feature enabled */
308 #define PCI_MSI_FLAGS_QMASK 0x000e /* Maximum queue size available */
309 #define PCI_MSI_FLAGS_QSIZE 0x0070 /* Message queue size configured */
310 #define PCI_MSI_FLAGS_64BIT 0x0080 /* 64-bit addresses allowed */
311 #define PCI_MSI_FLAGS_MASKBIT 0x0100 /* Per-vector masking capable */
312 #define PCI_MSI_RFU 3 /* Rest of capability flags */
313 #define PCI_MSI_ADDRESS_LO 0x04 /* Lower 32 bits */
314 #define PCI_MSI_ADDRESS_HI 0x08 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
315 #define PCI_MSI_DATA_32 0x08 /* 16 bits of data for 32-bit devices */
316 #define PCI_MSI_MASK_32 0x0c /* Mask bits register for 32-bit devices */
317 #define PCI_MSI_PENDING_32 0x10 /* Pending intrs for 32-bit devices */
318 #define PCI_MSI_DATA_64 0x0c /* 16 bits of data for 64-bit devices */
319 #define PCI_MSI_MASK_64 0x10 /* Mask bits register for 64-bit devices */
320 #define PCI_MSI_PENDING_64 0x14 /* Pending intrs for 64-bit devices */
322 /* MSI-X registers (in MSI-X capability) */
323 #define PCI_MSIX_FLAGS 2 /* Message Control */
324 #define PCI_MSIX_FLAGS_QSIZE 0x07FF /* Table size */
325 #define PCI_MSIX_FLAGS_MASKALL 0x4000 /* Mask all vectors for this function */
326 #define PCI_MSIX_FLAGS_ENABLE 0x8000 /* MSI-X enable */
327 #define PCI_MSIX_TABLE 4 /* Table offset */
328 #define PCI_MSIX_TABLE_BIR 0x00000007 /* BAR index */
329 #define PCI_MSIX_TABLE_OFFSET 0xfffffff8 /* Offset into specified BAR */
330 #define PCI_MSIX_PBA 8 /* Pending Bit Array offset */
331 #define PCI_MSIX_PBA_BIR 0x00000007 /* BAR index */
332 #define PCI_MSIX_PBA_OFFSET 0xfffffff8 /* Offset into specified BAR */
333 #define PCI_MSIX_FLAGS_BIRMASK PCI_MSIX_PBA_BIR /* deprecated */
334 #define PCI_CAP_MSIX_SIZEOF 12 /* size of MSIX registers */
336 /* MSI-X Table entry format (in memory mapped by a BAR) */
337 #define PCI_MSIX_ENTRY_SIZE 16
338 #define PCI_MSIX_ENTRY_LOWER_ADDR 0x0 /* Message Address */
339 #define PCI_MSIX_ENTRY_UPPER_ADDR 0x4 /* Message Upper Address */
340 #define PCI_MSIX_ENTRY_DATA 0x8 /* Message Data */
341 #define PCI_MSIX_ENTRY_VECTOR_CTRL 0xc /* Vector Control */
342 #define PCI_MSIX_ENTRY_CTRL_MASKBIT 0x00000001
344 /* CompactPCI Hotswap Register */
346 #define PCI_CHSWP_CSR 2 /* Control and Status Register */
347 #define PCI_CHSWP_DHA 0x01 /* Device Hiding Arm */
348 #define PCI_CHSWP_EIM 0x02 /* ENUM# Signal Mask */
349 #define PCI_CHSWP_PIE 0x04 /* Pending Insert or Extract */
350 #define PCI_CHSWP_LOO 0x08 /* LED On / Off */
351 #define PCI_CHSWP_PI 0x30 /* Programming Interface */
352 #define PCI_CHSWP_EXT 0x40 /* ENUM# status - extraction */
353 #define PCI_CHSWP_INS 0x80 /* ENUM# status - insertion */
355 /* PCI Advanced Feature registers */
357 #define PCI_AF_LENGTH 2
359 #define PCI_AF_CAP_TP 0x01
360 #define PCI_AF_CAP_FLR 0x02
361 #define PCI_AF_CTRL 4
362 #define PCI_AF_CTRL_FLR 0x01
363 #define PCI_AF_STATUS 5
364 #define PCI_AF_STATUS_TP 0x01
365 #define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */
367 /* PCI Enhanced Allocation registers */
369 #define PCI_EA_NUM_ENT 2 /* Number of Capability Entries */
370 #define PCI_EA_NUM_ENT_MASK 0x3f /* Num Entries Mask */
371 #define PCI_EA_FIRST_ENT 4 /* First EA Entry in List */
372 #define PCI_EA_FIRST_ENT_BRIDGE 8 /* First EA Entry for Bridges */
373 #define PCI_EA_ES 0x00000007 /* Entry Size */
374 #define PCI_EA_BEI 0x000000f0 /* BAR Equivalent Indicator */
376 /* EA fixed Secondary and Subordinate bus numbers for Bridge */
377 #define PCI_EA_SEC_BUS_MASK 0xff
378 #define PCI_EA_SUB_BUS_MASK 0xff00
379 #define PCI_EA_SUB_BUS_SHIFT 8
381 /* 0-5 map to BARs 0-5 respectively */
382 #define PCI_EA_BEI_BAR0 0
383 #define PCI_EA_BEI_BAR5 5
384 #define PCI_EA_BEI_BRIDGE 6 /* Resource behind bridge */
385 #define PCI_EA_BEI_ENI 7 /* Equivalent Not Indicated */
386 #define PCI_EA_BEI_ROM 8 /* Expansion ROM */
387 /* 9-14 map to VF BARs 0-5 respectively */
388 #define PCI_EA_BEI_VF_BAR0 9
389 #define PCI_EA_BEI_VF_BAR5 14
390 #define PCI_EA_BEI_RESERVED 15 /* Reserved - Treat like ENI */
391 #define PCI_EA_PP 0x0000ff00 /* Primary Properties */
392 #define PCI_EA_SP 0x00ff0000 /* Secondary Properties */
393 #define PCI_EA_P_MEM 0x00 /* Non-Prefetch Memory */
394 #define PCI_EA_P_MEM_PREFETCH 0x01 /* Prefetchable Memory */
395 #define PCI_EA_P_IO 0x02 /* I/O Space */
396 #define PCI_EA_P_VF_MEM_PREFETCH 0x03 /* VF Prefetchable Memory */
397 #define PCI_EA_P_VF_MEM 0x04 /* VF Non-Prefetch Memory */
398 #define PCI_EA_P_BRIDGE_MEM 0x05 /* Bridge Non-Prefetch Memory */
399 #define PCI_EA_P_BRIDGE_MEM_PREFETCH 0x06 /* Bridge Prefetchable Memory */
400 #define PCI_EA_P_BRIDGE_IO 0x07 /* Bridge I/O Space */
401 /* 0x08-0xfc reserved */
402 #define PCI_EA_P_MEM_RESERVED 0xfd /* Reserved Memory */
403 #define PCI_EA_P_IO_RESERVED 0xfe /* Reserved I/O Space */
404 #define PCI_EA_P_UNAVAILABLE 0xff /* Entry Unavailable */
405 #define PCI_EA_WRITABLE 0x40000000 /* Writable: 1 = RW, 0 = HwInit */
406 #define PCI_EA_ENABLE 0x80000000 /* Enable for this entry */
407 #define PCI_EA_BASE 4 /* Base Address Offset */
408 #define PCI_EA_MAX_OFFSET 8 /* MaxOffset (resource length) */
409 /* bit 0 is reserved */
410 #define PCI_EA_IS_64 0x00000002 /* 64-bit field flag */
411 #define PCI_EA_FIELD_MASK 0xfffffffc /* For Base & Max Offset */
413 /* PCI-X registers (Type 0 (non-bridge) devices) */
415 #define PCI_X_CMD 2 /* Modes & Features */
416 #define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */
417 #define PCI_X_CMD_ERO 0x0002 /* Enable Relaxed Ordering */
418 #define PCI_X_CMD_READ_512 0x0000 /* 512 byte maximum read byte count */
419 #define PCI_X_CMD_READ_1K 0x0004 /* 1Kbyte maximum read byte count */
420 #define PCI_X_CMD_READ_2K 0x0008 /* 2Kbyte maximum read byte count */
421 #define PCI_X_CMD_READ_4K 0x000c /* 4Kbyte maximum read byte count */
422 #define PCI_X_CMD_MAX_READ 0x000c /* Max Memory Read Byte Count */
423 /* Max # of outstanding split transactions */
424 #define PCI_X_CMD_SPLIT_1 0x0000 /* Max 1 */
425 #define PCI_X_CMD_SPLIT_2 0x0010 /* Max 2 */
426 #define PCI_X_CMD_SPLIT_3 0x0020 /* Max 3 */
427 #define PCI_X_CMD_SPLIT_4 0x0030 /* Max 4 */
428 #define PCI_X_CMD_SPLIT_8 0x0040 /* Max 8 */
429 #define PCI_X_CMD_SPLIT_12 0x0050 /* Max 12 */
430 #define PCI_X_CMD_SPLIT_16 0x0060 /* Max 16 */
431 #define PCI_X_CMD_SPLIT_32 0x0070 /* Max 32 */
432 #define PCI_X_CMD_MAX_SPLIT 0x0070 /* Max Outstanding Split Transactions */
433 #define PCI_X_CMD_VERSION(x) (((x) >> 12) & 3) /* Version */
434 #define PCI_X_STATUS 4 /* PCI-X capabilities */
435 #define PCI_X_STATUS_DEVFN 0x000000ff /* A copy of devfn */
436 #define PCI_X_STATUS_BUS 0x0000ff00 /* A copy of bus nr */
437 #define PCI_X_STATUS_64BIT 0x00010000 /* 64-bit device */
438 #define PCI_X_STATUS_133MHZ 0x00020000 /* 133 MHz capable */
439 #define PCI_X_STATUS_SPL_DISC 0x00040000 /* Split Completion Discarded */
440 #define PCI_X_STATUS_UNX_SPL 0x00080000 /* Unexpected Split Completion */
441 #define PCI_X_STATUS_COMPLEX 0x00100000 /* Device Complexity */
442 #define PCI_X_STATUS_MAX_READ 0x00600000 /* Designed Max Memory Read Count */
443 #define PCI_X_STATUS_MAX_SPLIT 0x03800000 /* Designed Max Outstanding Split Transactions */
444 #define PCI_X_STATUS_MAX_CUM 0x1c000000 /* Designed Max Cumulative Read Size */
445 #define PCI_X_STATUS_SPL_ERR 0x20000000 /* Rcvd Split Completion Error Msg */
446 #define PCI_X_STATUS_266MHZ 0x40000000 /* 266 MHz capable */
447 #define PCI_X_STATUS_533MHZ 0x80000000 /* 533 MHz capable */
448 #define PCI_X_ECC_CSR 8 /* ECC control and status */
449 #define PCI_CAP_PCIX_SIZEOF_V0 8 /* size of registers for Version 0 */
450 #define PCI_CAP_PCIX_SIZEOF_V1 24 /* size for Version 1 */
451 #define PCI_CAP_PCIX_SIZEOF_V2 PCI_CAP_PCIX_SIZEOF_V1 /* Same for v2 */
453 /* PCI-X registers (Type 1 (bridge) devices) */
455 #define PCI_X_BRIDGE_SSTATUS 2 /* Secondary Status */
456 #define PCI_X_SSTATUS_64BIT 0x0001 /* Secondary AD interface is 64 bits */
457 #define PCI_X_SSTATUS_133MHZ 0x0002 /* 133 MHz capable */
458 #define PCI_X_SSTATUS_FREQ 0x03c0 /* Secondary Bus Mode and Frequency */
459 #define PCI_X_SSTATUS_VERS 0x3000 /* PCI-X Capability Version */
460 #define PCI_X_SSTATUS_V1 0x1000 /* Mode 2, not Mode 1 */
461 #define PCI_X_SSTATUS_V2 0x2000 /* Mode 1 or Modes 1 and 2 */
462 #define PCI_X_SSTATUS_266MHZ 0x4000 /* 266 MHz capable */
463 #define PCI_X_SSTATUS_533MHZ 0x8000 /* 533 MHz capable */
464 #define PCI_X_BRIDGE_STATUS 4 /* Bridge Status */
466 /* PCI Bridge Subsystem ID registers */
468 #define PCI_SSVID_VENDOR_ID 4 /* PCI Bridge subsystem vendor ID */
469 #define PCI_SSVID_DEVICE_ID 6 /* PCI Bridge subsystem device ID */
471 /* PCI Express capability registers */
473 #define PCI_EXP_FLAGS 0x02 /* Capabilities register */
474 #define PCI_EXP_FLAGS_VERS 0x000f /* Capability version */
475 #define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */
476 #define PCI_EXP_TYPE_ENDPOINT 0x0 /* Express Endpoint */
477 #define PCI_EXP_TYPE_LEG_END 0x1 /* Legacy Endpoint */
478 #define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
479 #define PCI_EXP_TYPE_UPSTREAM 0x5 /* Upstream Port */
480 #define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
481 #define PCI_EXP_TYPE_PCI_BRIDGE 0x7 /* PCIe to PCI/PCI-X Bridge */
482 #define PCI_EXP_TYPE_PCIE_BRIDGE 0x8 /* PCI/PCI-X to PCIe Bridge */
483 #define PCI_EXP_TYPE_RC_END 0x9 /* Root Complex Integrated Endpoint */
484 #define PCI_EXP_TYPE_RC_EC 0xa /* Root Complex Event Collector */
485 #define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */
486 #define PCI_EXP_FLAGS_IRQ 0x3e00 /* Interrupt message number */
487 #define PCI_EXP_DEVCAP 0x04 /* Device capabilities */
488 #define PCI_EXP_DEVCAP_PAYLOAD 0x00000007 /* Max_Payload_Size */
489 #define PCI_EXP_DEVCAP_PHANTOM 0x00000018 /* Phantom functions */
490 #define PCI_EXP_DEVCAP_EXT_TAG 0x00000020 /* Extended tags */
491 #define PCI_EXP_DEVCAP_L0S 0x000001c0 /* L0s Acceptable Latency */
492 #define PCI_EXP_DEVCAP_L1 0x00000e00 /* L1 Acceptable Latency */
493 #define PCI_EXP_DEVCAP_ATN_BUT 0x00001000 /* Attention Button Present */
494 #define PCI_EXP_DEVCAP_ATN_IND 0x00002000 /* Attention Indicator Present */
495 #define PCI_EXP_DEVCAP_PWR_IND 0x00004000 /* Power Indicator Present */
496 #define PCI_EXP_DEVCAP_RBER 0x00008000 /* Role-Based Error Reporting */
497 #define PCI_EXP_DEVCAP_PWR_VAL 0x03fc0000 /* Slot Power Limit Value */
498 #define PCI_EXP_DEVCAP_PWR_SCL 0x0c000000 /* Slot Power Limit Scale */
499 #define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */
500 #define PCI_EXP_DEVCTL 0x08 /* Device Control */
501 #define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */
502 #define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */
503 #define PCI_EXP_DEVCTL_FERE 0x0004 /* Fatal Error Reporting Enable */
504 #define PCI_EXP_DEVCTL_URRE 0x0008 /* Unsupported Request Reporting En. */
505 #define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
506 #define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */
507 #define PCI_EXP_DEVCTL_PAYLOAD_128B 0x0000 /* 128 Bytes */
508 #define PCI_EXP_DEVCTL_PAYLOAD_256B 0x0020 /* 256 Bytes */
509 #define PCI_EXP_DEVCTL_PAYLOAD_512B 0x0040 /* 512 Bytes */
510 #define PCI_EXP_DEVCTL_PAYLOAD_1024B 0x0060 /* 1024 Bytes */
511 #define PCI_EXP_DEVCTL_PAYLOAD_2048B 0x0080 /* 2048 Bytes */
512 #define PCI_EXP_DEVCTL_PAYLOAD_4096B 0x00a0 /* 4096 Bytes */
513 #define PCI_EXP_DEVCTL_EXT_TAG 0x0100 /* Extended Tag Field Enable */
514 #define PCI_EXP_DEVCTL_PHANTOM 0x0200 /* Phantom Functions Enable */
515 #define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */
516 #define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */
517 #define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */
518 #define PCI_EXP_DEVCTL_READRQ_128B 0x0000 /* 128 Bytes */
519 #define PCI_EXP_DEVCTL_READRQ_256B 0x1000 /* 256 Bytes */
520 #define PCI_EXP_DEVCTL_READRQ_512B 0x2000 /* 512 Bytes */
521 #define PCI_EXP_DEVCTL_READRQ_1024B 0x3000 /* 1024 Bytes */
522 #define PCI_EXP_DEVCTL_READRQ_2048B 0x4000 /* 2048 Bytes */
523 #define PCI_EXP_DEVCTL_READRQ_4096B 0x5000 /* 4096 Bytes */
524 #define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */
525 #define PCI_EXP_DEVSTA 0x0a /* Device Status */
526 #define PCI_EXP_DEVSTA_CED 0x0001 /* Correctable Error Detected */
527 #define PCI_EXP_DEVSTA_NFED 0x0002 /* Non-Fatal Error Detected */
528 #define PCI_EXP_DEVSTA_FED 0x0004 /* Fatal Error Detected */
529 #define PCI_EXP_DEVSTA_URD 0x0008 /* Unsupported Request Detected */
530 #define PCI_EXP_DEVSTA_AUXPD 0x0010 /* AUX Power Detected */
531 #define PCI_EXP_DEVSTA_TRPND 0x0020 /* Transactions Pending */
532 #define PCI_CAP_EXP_RC_ENDPOINT_SIZEOF_V1 12 /* v1 endpoints without link end here */
533 #define PCI_EXP_LNKCAP 0x0c /* Link Capabilities */
534 #define PCI_EXP_LNKCAP_SLS 0x0000000f /* Supported Link Speeds */
535 #define PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
536 #define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
537 #define PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
538 #define PCI_EXP_LNKCAP_SLS_16_0GB 0x00000004 /* LNKCAP2 SLS Vector bit 3 */
539 #define PCI_EXP_LNKCAP_SLS_32_0GB 0x00000005 /* LNKCAP2 SLS Vector bit 4 */
540 #define PCI_EXP_LNKCAP_SLS_64_0GB 0x00000006 /* LNKCAP2 SLS Vector bit 5 */
541 #define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
542 #define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
543 #define PCI_EXP_LNKCAP_ASPM_L0S 0x00000400 /* ASPM L0s Support */
544 #define PCI_EXP_LNKCAP_ASPM_L1 0x00000800 /* ASPM L1 Support */
545 #define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */
546 #define PCI_EXP_LNKCAP_L1EL 0x00038000 /* L1 Exit Latency */
547 #define PCI_EXP_LNKCAP_CLKPM 0x00040000 /* Clock Power Management */
548 #define PCI_EXP_LNKCAP_SDERC 0x00080000 /* Surprise Down Error Reporting Capable */
549 #define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */
550 #define PCI_EXP_LNKCAP_LBNC 0x00200000 /* Link Bandwidth Notification Capability */
551 #define PCI_EXP_LNKCAP_PN 0xff000000 /* Port Number */
552 #define PCI_EXP_LNKCTL 0x10 /* Link Control */
553 #define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */
554 #define PCI_EXP_LNKCTL_ASPM_L0S 0x0001 /* L0s Enable */
555 #define PCI_EXP_LNKCTL_ASPM_L1 0x0002 /* L1 Enable */
556 #define PCI_EXP_LNKCTL_RCB 0x0008 /* Read Completion Boundary */
557 #define PCI_EXP_LNKCTL_LD 0x0010 /* Link Disable */
558 #define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */
559 #define PCI_EXP_LNKCTL_CCC 0x0040 /* Common Clock Configuration */
560 #define PCI_EXP_LNKCTL_ES 0x0080 /* Extended Synch */
561 #define PCI_EXP_LNKCTL_CLKREQ_EN 0x0100 /* Enable clkreq */
562 #define PCI_EXP_LNKCTL_HAWD 0x0200 /* Hardware Autonomous Width Disable */
563 #define PCI_EXP_LNKCTL_LBMIE 0x0400 /* Link Bandwidth Management Interrupt Enable */
564 #define PCI_EXP_LNKCTL_LABIE 0x0800 /* Link Autonomous Bandwidth Interrupt Enable */
565 #define PCI_EXP_LNKSTA 0x12 /* Link Status */
566 #define PCI_EXP_LNKSTA_CLS 0x000f /* Current Link Speed */
567 #define PCI_EXP_LNKSTA_CLS_2_5GB 0x0001 /* Current Link Speed 2.5GT/s */
568 #define PCI_EXP_LNKSTA_CLS_5_0GB 0x0002 /* Current Link Speed 5.0GT/s */
569 #define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003 /* Current Link Speed 8.0GT/s */
570 #define PCI_EXP_LNKSTA_CLS_16_0GB 0x0004 /* Current Link Speed 16.0GT/s */
571 #define PCI_EXP_LNKSTA_CLS_32_0GB 0x0005 /* Current Link Speed 32.0GT/s */
572 #define PCI_EXP_LNKSTA_CLS_64_0GB 0x0006 /* Current Link Speed 64.0GT/s */
573 #define PCI_EXP_LNKSTA_NLW 0x03f0 /* Negotiated Link Width */
574 #define PCI_EXP_LNKSTA_NLW_X1 0x0010 /* Current Link Width x1 */
575 #define PCI_EXP_LNKSTA_NLW_X2 0x0020 /* Current Link Width x2 */
576 #define PCI_EXP_LNKSTA_NLW_X4 0x0040 /* Current Link Width x4 */
577 #define PCI_EXP_LNKSTA_NLW_X8 0x0080 /* Current Link Width x8 */
578 #define PCI_EXP_LNKSTA_NLW_SHIFT 4 /* start of NLW mask in link status */
579 #define PCI_EXP_LNKSTA_LT 0x0800 /* Link Training */
580 #define PCI_EXP_LNKSTA_SLC 0x1000 /* Slot Clock Configuration */
581 #define PCI_EXP_LNKSTA_DLLLA 0x2000 /* Data Link Layer Link Active */
582 #define PCI_EXP_LNKSTA_LBMS 0x4000 /* Link Bandwidth Management Status */
583 #define PCI_EXP_LNKSTA_LABS 0x8000 /* Link Autonomous Bandwidth Status */
584 #define PCI_CAP_EXP_ENDPOINT_SIZEOF_V1 20 /* v1 endpoints with link end here */
585 #define PCI_EXP_SLTCAP 0x14 /* Slot Capabilities */
586 #define PCI_EXP_SLTCAP_ABP 0x00000001 /* Attention Button Present */
587 #define PCI_EXP_SLTCAP_PCP 0x00000002 /* Power Controller Present */
588 #define PCI_EXP_SLTCAP_MRLSP 0x00000004 /* MRL Sensor Present */
589 #define PCI_EXP_SLTCAP_AIP 0x00000008 /* Attention Indicator Present */
590 #define PCI_EXP_SLTCAP_PIP 0x00000010 /* Power Indicator Present */
591 #define PCI_EXP_SLTCAP_HPS 0x00000020 /* Hot-Plug Surprise */
592 #define PCI_EXP_SLTCAP_HPC 0x00000040 /* Hot-Plug Capable */
593 #define PCI_EXP_SLTCAP_SPLV 0x00007f80 /* Slot Power Limit Value */
594 #define PCI_EXP_SLTCAP_SPLS 0x00018000 /* Slot Power Limit Scale */
595 #define PCI_EXP_SLTCAP_EIP 0x00020000 /* Electromechanical Interlock Present */
596 #define PCI_EXP_SLTCAP_NCCS 0x00040000 /* No Command Completed Support */
597 #define PCI_EXP_SLTCAP_PSN 0xfff80000 /* Physical Slot Number */
598 #define PCI_EXP_SLTCTL 0x18 /* Slot Control */
599 #define PCI_EXP_SLTCTL_ABPE 0x0001 /* Attention Button Pressed Enable */
600 #define PCI_EXP_SLTCTL_PFDE 0x0002 /* Power Fault Detected Enable */
601 #define PCI_EXP_SLTCTL_MRLSCE 0x0004 /* MRL Sensor Changed Enable */
602 #define PCI_EXP_SLTCTL_PDCE 0x0008 /* Presence Detect Changed Enable */
603 #define PCI_EXP_SLTCTL_CCIE 0x0010 /* Command Completed Interrupt Enable */
604 #define PCI_EXP_SLTCTL_HPIE 0x0020 /* Hot-Plug Interrupt Enable */
605 #define PCI_EXP_SLTCTL_AIC 0x00c0 /* Attention Indicator Control */
606 #define PCI_EXP_SLTCTL_ATTN_IND_SHIFT 6 /* Attention Indicator shift */
607 #define PCI_EXP_SLTCTL_ATTN_IND_ON 0x0040 /* Attention Indicator on */
608 #define PCI_EXP_SLTCTL_ATTN_IND_BLINK 0x0080 /* Attention Indicator blinking */
609 #define PCI_EXP_SLTCTL_ATTN_IND_OFF 0x00c0 /* Attention Indicator off */
610 #define PCI_EXP_SLTCTL_PIC 0x0300 /* Power Indicator Control */
611 #define PCI_EXP_SLTCTL_PWR_IND_ON 0x0100 /* Power Indicator on */
612 #define PCI_EXP_SLTCTL_PWR_IND_BLINK 0x0200 /* Power Indicator blinking */
613 #define PCI_EXP_SLTCTL_PWR_IND_OFF 0x0300 /* Power Indicator off */
614 #define PCI_EXP_SLTCTL_PCC 0x0400 /* Power Controller Control */
615 #define PCI_EXP_SLTCTL_PWR_ON 0x0000 /* Power On */
616 #define PCI_EXP_SLTCTL_PWR_OFF 0x0400 /* Power Off */
617 #define PCI_EXP_SLTCTL_EIC 0x0800 /* Electromechanical Interlock Control */
618 #define PCI_EXP_SLTCTL_DLLSCE 0x1000 /* Data Link Layer State Changed Enable */
619 #define PCI_EXP_SLTCTL_ASPL_DISABLE 0x2000 /* Auto Slot Power Limit Disable */
620 #define PCI_EXP_SLTCTL_IBPD_DISABLE 0x4000 /* In-band PD disable */
621 #define PCI_EXP_SLTSTA 0x1a /* Slot Status */
622 #define PCI_EXP_SLTSTA_ABP 0x0001 /* Attention Button Pressed */
623 #define PCI_EXP_SLTSTA_PFD 0x0002 /* Power Fault Detected */
624 #define PCI_EXP_SLTSTA_MRLSC 0x0004 /* MRL Sensor Changed */
625 #define PCI_EXP_SLTSTA_PDC 0x0008 /* Presence Detect Changed */
626 #define PCI_EXP_SLTSTA_CC 0x0010 /* Command Completed */
627 #define PCI_EXP_SLTSTA_MRLSS 0x0020 /* MRL Sensor State */
628 #define PCI_EXP_SLTSTA_PDS 0x0040 /* Presence Detect State */
629 #define PCI_EXP_SLTSTA_EIS 0x0080 /* Electromechanical Interlock Status */
630 #define PCI_EXP_SLTSTA_DLLSC 0x0100 /* Data Link Layer State Changed */
631 #define PCI_EXP_RTCTL 0x1c /* Root Control */
632 #define PCI_EXP_RTCTL_SECEE 0x0001 /* System Error on Correctable Error */
633 #define PCI_EXP_RTCTL_SENFEE 0x0002 /* System Error on Non-Fatal Error */
634 #define PCI_EXP_RTCTL_SEFEE 0x0004 /* System Error on Fatal Error */
635 #define PCI_EXP_RTCTL_PMEIE 0x0008 /* PME Interrupt Enable */
636 #define PCI_EXP_RTCTL_CRSSVE 0x0010 /* CRS Software Visibility Enable */
637 #define PCI_EXP_RTCAP 0x1e /* Root Capabilities */
638 #define PCI_EXP_RTCAP_CRSVIS 0x0001 /* CRS Software Visibility capability */
639 #define PCI_EXP_RTSTA 0x20 /* Root Status */
640 #define PCI_EXP_RTSTA_PME 0x00010000 /* PME status */
641 #define PCI_EXP_RTSTA_PENDING 0x00020000 /* PME pending */
643 * The Device Capabilities 2, Device Status 2, Device Control 2,
644 * Link Capabilities 2, Link Status 2, Link Control 2,
645 * Slot Capabilities 2, Slot Status 2, and Slot Control 2 registers
646 * are only present on devices with PCIe Capability version 2.
647 * Use pcie_capability_read_word() and similar interfaces to use them
650 #define PCI_EXP_DEVCAP2 0x24 /* Device Capabilities 2 */
651 #define PCI_EXP_DEVCAP2_COMP_TMOUT_DIS 0x00000010 /* Completion Timeout Disable supported */
652 #define PCI_EXP_DEVCAP2_ARI 0x00000020 /* Alternative Routing-ID */
653 #define PCI_EXP_DEVCAP2_ATOMIC_ROUTE 0x00000040 /* Atomic Op routing */
654 #define PCI_EXP_DEVCAP2_ATOMIC_COMP32 0x00000080 /* 32b AtomicOp completion */
655 #define PCI_EXP_DEVCAP2_ATOMIC_COMP64 0x00000100 /* 64b AtomicOp completion */
656 #define PCI_EXP_DEVCAP2_ATOMIC_COMP128 0x00000200 /* 128b AtomicOp completion */
657 #define PCI_EXP_DEVCAP2_LTR 0x00000800 /* Latency tolerance reporting */
658 #define PCI_EXP_DEVCAP2_OBFF_MASK 0x000c0000 /* OBFF support mechanism */
659 #define PCI_EXP_DEVCAP2_OBFF_MSG 0x00040000 /* New message signaling */
660 #define PCI_EXP_DEVCAP2_OBFF_WAKE 0x00080000 /* Re-use WAKE# for OBFF */
661 #define PCI_EXP_DEVCAP2_EE_PREFIX 0x00200000 /* End-End TLP Prefix */
662 #define PCI_EXP_DEVCTL2 0x28 /* Device Control 2 */
663 #define PCI_EXP_DEVCTL2_COMP_TIMEOUT 0x000f /* Completion Timeout Value */
664 #define PCI_EXP_DEVCTL2_COMP_TMOUT_DIS 0x0010 /* Completion Timeout Disable */
665 #define PCI_EXP_DEVCTL2_ARI 0x0020 /* Alternative Routing-ID */
666 #define PCI_EXP_DEVCTL2_ATOMIC_REQ 0x0040 /* Set Atomic requests */
667 #define PCI_EXP_DEVCTL2_ATOMIC_EGRESS_BLOCK 0x0080 /* Block atomic egress */
668 #define PCI_EXP_DEVCTL2_IDO_REQ_EN 0x0100 /* Allow IDO for requests */
669 #define PCI_EXP_DEVCTL2_IDO_CMP_EN 0x0200 /* Allow IDO for completions */
670 #define PCI_EXP_DEVCTL2_LTR_EN 0x0400 /* Enable LTR mechanism */
671 #define PCI_EXP_DEVCTL2_OBFF_MSGA_EN 0x2000 /* Enable OBFF Message type A */
672 #define PCI_EXP_DEVCTL2_OBFF_MSGB_EN 0x4000 /* Enable OBFF Message type B */
673 #define PCI_EXP_DEVCTL2_OBFF_WAKE_EN 0x6000 /* OBFF using WAKE# signaling */
674 #define PCI_EXP_DEVSTA2 0x2a /* Device Status 2 */
675 #define PCI_CAP_EXP_RC_ENDPOINT_SIZEOF_V2 0x2c /* end of v2 EPs w/o link */
676 #define PCI_EXP_LNKCAP2 0x2c /* Link Capabilities 2 */
677 #define PCI_EXP_LNKCAP2_SLS_2_5GB 0x00000002 /* Supported Speed 2.5GT/s */
678 #define PCI_EXP_LNKCAP2_SLS_5_0GB 0x00000004 /* Supported Speed 5GT/s */
679 #define PCI_EXP_LNKCAP2_SLS_8_0GB 0x00000008 /* Supported Speed 8GT/s */
680 #define PCI_EXP_LNKCAP2_SLS_16_0GB 0x00000010 /* Supported Speed 16GT/s */
681 #define PCI_EXP_LNKCAP2_SLS_32_0GB 0x00000020 /* Supported Speed 32GT/s */
682 #define PCI_EXP_LNKCAP2_SLS_64_0GB 0x00000040 /* Supported Speed 64GT/s */
683 #define PCI_EXP_LNKCAP2_CROSSLINK 0x00000100 /* Crosslink supported */
684 #define PCI_EXP_LNKCTL2 0x30 /* Link Control 2 */
685 #define PCI_EXP_LNKCTL2_TLS 0x000f
686 #define PCI_EXP_LNKCTL2_TLS_2_5GT 0x0001 /* Supported Speed 2.5GT/s */
687 #define PCI_EXP_LNKCTL2_TLS_5_0GT 0x0002 /* Supported Speed 5GT/s */
688 #define PCI_EXP_LNKCTL2_TLS_8_0GT 0x0003 /* Supported Speed 8GT/s */
689 #define PCI_EXP_LNKCTL2_TLS_16_0GT 0x0004 /* Supported Speed 16GT/s */
690 #define PCI_EXP_LNKCTL2_TLS_32_0GT 0x0005 /* Supported Speed 32GT/s */
691 #define PCI_EXP_LNKCTL2_TLS_64_0GT 0x0006 /* Supported Speed 64GT/s */
692 #define PCI_EXP_LNKCTL2_ENTER_COMP 0x0010 /* Enter Compliance */
693 #define PCI_EXP_LNKCTL2_TX_MARGIN 0x0380 /* Transmit Margin */
694 #define PCI_EXP_LNKCTL2_HASD 0x0020 /* HW Autonomous Speed Disable */
695 #define PCI_EXP_LNKSTA2 0x32 /* Link Status 2 */
696 #define PCI_EXP_LNKSTA2_FLIT 0x0400 /* Flit Mode Status */
697 #define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32 /* end of v2 EPs w/ link */
698 #define PCI_EXP_SLTCAP2 0x34 /* Slot Capabilities 2 */
699 #define PCI_EXP_SLTCAP2_IBPD 0x00000001 /* In-band PD Disable Supported */
700 #define PCI_EXP_SLTCTL2 0x38 /* Slot Control 2 */
701 #define PCI_EXP_SLTSTA2 0x3a /* Slot Status 2 */
703 /* Extended Capabilities (PCI-X 2.0 and Express) */
704 #define PCI_EXT_CAP_ID(header) (header & 0x0000ffff)
705 #define PCI_EXT_CAP_VER(header) ((header >> 16) & 0xf)
706 #define PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc)
708 #define PCI_EXT_CAP_ID_ERR 0x01 /* Advanced Error Reporting */
709 #define PCI_EXT_CAP_ID_VC 0x02 /* Virtual Channel Capability */
710 #define PCI_EXT_CAP_ID_DSN 0x03 /* Device Serial Number */
711 #define PCI_EXT_CAP_ID_PWR 0x04 /* Power Budgeting */
712 #define PCI_EXT_CAP_ID_RCLD 0x05 /* Root Complex Link Declaration */
713 #define PCI_EXT_CAP_ID_RCILC 0x06 /* Root Complex Internal Link Control */
714 #define PCI_EXT_CAP_ID_RCEC 0x07 /* Root Complex Event Collector */
715 #define PCI_EXT_CAP_ID_MFVC 0x08 /* Multi-Function VC Capability */
716 #define PCI_EXT_CAP_ID_VC9 0x09 /* same as _VC */
717 #define PCI_EXT_CAP_ID_RCRB 0x0A /* Root Complex RB? */
718 #define PCI_EXT_CAP_ID_VNDR 0x0B /* Vendor-Specific */
719 #define PCI_EXT_CAP_ID_CAC 0x0C /* Config Access - obsolete */
720 #define PCI_EXT_CAP_ID_ACS 0x0D /* Access Control Services */
721 #define PCI_EXT_CAP_ID_ARI 0x0E /* Alternate Routing ID */
722 #define PCI_EXT_CAP_ID_ATS 0x0F /* Address Translation Services */
723 #define PCI_EXT_CAP_ID_SRIOV 0x10 /* Single Root I/O Virtualization */
724 #define PCI_EXT_CAP_ID_MRIOV 0x11 /* Multi Root I/O Virtualization */
725 #define PCI_EXT_CAP_ID_MCAST 0x12 /* Multicast */
726 #define PCI_EXT_CAP_ID_PRI 0x13 /* Page Request Interface */
727 #define PCI_EXT_CAP_ID_AMD_XXX 0x14 /* Reserved for AMD */
728 #define PCI_EXT_CAP_ID_REBAR 0x15 /* Resizable BAR */
729 #define PCI_EXT_CAP_ID_DPA 0x16 /* Dynamic Power Allocation */
730 #define PCI_EXT_CAP_ID_TPH 0x17 /* TPH Requester */
731 #define PCI_EXT_CAP_ID_LTR 0x18 /* Latency Tolerance Reporting */
732 #define PCI_EXT_CAP_ID_SECPCI 0x19 /* Secondary PCIe Capability */
733 #define PCI_EXT_CAP_ID_PMUX 0x1A /* Protocol Multiplexing */
734 #define PCI_EXT_CAP_ID_PASID 0x1B /* Process Address Space ID */
735 #define PCI_EXT_CAP_ID_DPC 0x1D /* Downstream Port Containment */
736 #define PCI_EXT_CAP_ID_L1SS 0x1E /* L1 PM Substates */
737 #define PCI_EXT_CAP_ID_PTM 0x1F /* Precision Time Measurement */
738 #define PCI_EXT_CAP_ID_DVSEC 0x23 /* Designated Vendor-Specific */
739 #define PCI_EXT_CAP_ID_DLF 0x25 /* Data Link Feature */
740 #define PCI_EXT_CAP_ID_PL_16GT 0x26 /* Physical Layer 16.0 GT/s */
741 #define PCI_EXT_CAP_ID_DOE 0x2E /* Data Object Exchange */
742 #define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_DOE
744 #define PCI_EXT_CAP_DSN_SIZEOF 12
745 #define PCI_EXT_CAP_MCAST_ENDPOINT_SIZEOF 40
747 /* Advanced Error Reporting */
748 #define PCI_ERR_UNCOR_STATUS 0x04 /* Uncorrectable Error Status */
749 #define PCI_ERR_UNC_UND 0x00000001 /* Undefined */
750 #define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
751 #define PCI_ERR_UNC_SURPDN 0x00000020 /* Surprise Down */
752 #define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
753 #define PCI_ERR_UNC_FCP 0x00002000 /* Flow Control Protocol */
754 #define PCI_ERR_UNC_COMP_TIME 0x00004000 /* Completion Timeout */
755 #define PCI_ERR_UNC_COMP_ABORT 0x00008000 /* Completer Abort */
756 #define PCI_ERR_UNC_UNX_COMP 0x00010000 /* Unexpected Completion */
757 #define PCI_ERR_UNC_RX_OVER 0x00020000 /* Receiver Overflow */
758 #define PCI_ERR_UNC_MALF_TLP 0x00040000 /* Malformed TLP */
759 #define PCI_ERR_UNC_ECRC 0x00080000 /* ECRC Error Status */
760 #define PCI_ERR_UNC_UNSUP 0x00100000 /* Unsupported Request */
761 #define PCI_ERR_UNC_ACSV 0x00200000 /* ACS Violation */
762 #define PCI_ERR_UNC_INTN 0x00400000 /* internal error */
763 #define PCI_ERR_UNC_MCBTLP 0x00800000 /* MC blocked TLP */
764 #define PCI_ERR_UNC_ATOMEG 0x01000000 /* Atomic egress blocked */
765 #define PCI_ERR_UNC_TLPPRE 0x02000000 /* TLP prefix blocked */
766 #define PCI_ERR_UNCOR_MASK 0x08 /* Uncorrectable Error Mask */
767 /* Same bits as above */
768 #define PCI_ERR_UNCOR_SEVER 0x0c /* Uncorrectable Error Severity */
769 /* Same bits as above */
770 #define PCI_ERR_COR_STATUS 0x10 /* Correctable Error Status */
771 #define PCI_ERR_COR_RCVR 0x00000001 /* Receiver Error Status */
772 #define PCI_ERR_COR_BAD_TLP 0x00000040 /* Bad TLP Status */
773 #define PCI_ERR_COR_BAD_DLLP 0x00000080 /* Bad DLLP Status */
774 #define PCI_ERR_COR_REP_ROLL 0x00000100 /* REPLAY_NUM Rollover */
775 #define PCI_ERR_COR_REP_TIMER 0x00001000 /* Replay Timer Timeout */
776 #define PCI_ERR_COR_ADV_NFAT 0x00002000 /* Advisory Non-Fatal */
777 #define PCI_ERR_COR_INTERNAL 0x00004000 /* Corrected Internal */
778 #define PCI_ERR_COR_LOG_OVER 0x00008000 /* Header Log Overflow */
779 #define PCI_ERR_COR_MASK 0x14 /* Correctable Error Mask */
780 /* Same bits as above */
781 #define PCI_ERR_CAP 0x18 /* Advanced Error Capabilities & Ctrl*/
782 #define PCI_ERR_CAP_FEP(x) ((x) & 0x1f) /* First Error Pointer */
783 #define PCI_ERR_CAP_ECRC_GENC 0x00000020 /* ECRC Generation Capable */
784 #define PCI_ERR_CAP_ECRC_GENE 0x00000040 /* ECRC Generation Enable */
785 #define PCI_ERR_CAP_ECRC_CHKC 0x00000080 /* ECRC Check Capable */
786 #define PCI_ERR_CAP_ECRC_CHKE 0x00000100 /* ECRC Check Enable */
787 #define PCI_ERR_HEADER_LOG 0x1c /* Header Log Register (16 bytes) */
788 #define PCI_ERR_ROOT_COMMAND 0x2c /* Root Error Command */
789 #define PCI_ERR_ROOT_CMD_COR_EN 0x00000001 /* Correctable Err Reporting Enable */
790 #define PCI_ERR_ROOT_CMD_NONFATAL_EN 0x00000002 /* Non-Fatal Err Reporting Enable */
791 #define PCI_ERR_ROOT_CMD_FATAL_EN 0x00000004 /* Fatal Err Reporting Enable */
792 #define PCI_ERR_ROOT_STATUS 0x30
793 #define PCI_ERR_ROOT_COR_RCV 0x00000001 /* ERR_COR Received */
794 #define PCI_ERR_ROOT_MULTI_COR_RCV 0x00000002 /* Multiple ERR_COR */
795 #define PCI_ERR_ROOT_UNCOR_RCV 0x00000004 /* ERR_FATAL/NONFATAL */
796 #define PCI_ERR_ROOT_MULTI_UNCOR_RCV 0x00000008 /* Multiple FATAL/NONFATAL */
797 #define PCI_ERR_ROOT_FIRST_FATAL 0x00000010 /* First UNC is Fatal */
798 #define PCI_ERR_ROOT_NONFATAL_RCV 0x00000020 /* Non-Fatal Received */
799 #define PCI_ERR_ROOT_FATAL_RCV 0x00000040 /* Fatal Received */
800 #define PCI_ERR_ROOT_AER_IRQ 0xf8000000 /* Advanced Error Interrupt Message Number */
801 #define PCI_ERR_ROOT_ERR_SRC 0x34 /* Error Source Identification */
803 /* Virtual Channel */
804 #define PCI_VC_PORT_CAP1 0x04
805 #define PCI_VC_CAP1_EVCC 0x00000007 /* extended VC count */
806 #define PCI_VC_CAP1_LPEVCC 0x00000070 /* low prio extended VC count */
807 #define PCI_VC_CAP1_ARB_SIZE 0x00000c00
808 #define PCI_VC_PORT_CAP2 0x08
809 #define PCI_VC_CAP2_32_PHASE 0x00000002
810 #define PCI_VC_CAP2_64_PHASE 0x00000004
811 #define PCI_VC_CAP2_128_PHASE 0x00000008
812 #define PCI_VC_CAP2_ARB_OFF 0xff000000
813 #define PCI_VC_PORT_CTRL 0x0c
814 #define PCI_VC_PORT_CTRL_LOAD_TABLE 0x00000001
815 #define PCI_VC_PORT_STATUS 0x0e
816 #define PCI_VC_PORT_STATUS_TABLE 0x00000001
817 #define PCI_VC_RES_CAP 0x10
818 #define PCI_VC_RES_CAP_32_PHASE 0x00000002
819 #define PCI_VC_RES_CAP_64_PHASE 0x00000004
820 #define PCI_VC_RES_CAP_128_PHASE 0x00000008
821 #define PCI_VC_RES_CAP_128_PHASE_TB 0x00000010
822 #define PCI_VC_RES_CAP_256_PHASE 0x00000020
823 #define PCI_VC_RES_CAP_ARB_OFF 0xff000000
824 #define PCI_VC_RES_CTRL 0x14
825 #define PCI_VC_RES_CTRL_LOAD_TABLE 0x00010000
826 #define PCI_VC_RES_CTRL_ARB_SELECT 0x000e0000
827 #define PCI_VC_RES_CTRL_ID 0x07000000
828 #define PCI_VC_RES_CTRL_ENABLE 0x80000000
829 #define PCI_VC_RES_STATUS 0x1a
830 #define PCI_VC_RES_STATUS_TABLE 0x00000001
831 #define PCI_VC_RES_STATUS_NEGO 0x00000002
832 #define PCI_CAP_VC_BASE_SIZEOF 0x10
833 #define PCI_CAP_VC_PER_VC_SIZEOF 0x0c
835 /* Power Budgeting */
836 #define PCI_PWR_DSR 0x04 /* Data Select Register */
837 #define PCI_PWR_DATA 0x08 /* Data Register */
838 #define PCI_PWR_DATA_BASE(x) ((x) & 0xff) /* Base Power */
839 #define PCI_PWR_DATA_SCALE(x) (((x) >> 8) & 3) /* Data Scale */
840 #define PCI_PWR_DATA_PM_SUB(x) (((x) >> 10) & 7) /* PM Sub State */
841 #define PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */
842 #define PCI_PWR_DATA_TYPE(x) (((x) >> 15) & 7) /* Type */
843 #define PCI_PWR_DATA_RAIL(x) (((x) >> 18) & 7) /* Power Rail */
844 #define PCI_PWR_CAP 0x0c /* Capability */
845 #define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
846 #define PCI_EXT_CAP_PWR_SIZEOF 0x10
848 /* Root Complex Event Collector Endpoint Association */
849 #define PCI_RCEC_RCIEP_BITMAP 4 /* Associated Bitmap for RCiEPs */
850 #define PCI_RCEC_BUSN 8 /* RCEC Associated Bus Numbers */
851 #define PCI_RCEC_BUSN_REG_VER 0x02 /* Least version with BUSN present */
852 #define PCI_RCEC_BUSN_NEXT(x) (((x) >> 8) & 0xff)
853 #define PCI_RCEC_BUSN_LAST(x) (((x) >> 16) & 0xff)
855 /* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */
856 #define PCI_VNDR_HEADER 4 /* Vendor-Specific Header */
857 #define PCI_VNDR_HEADER_ID(x) ((x) & 0xffff)
858 #define PCI_VNDR_HEADER_REV(x) (((x) >> 16) & 0xf)
859 #define PCI_VNDR_HEADER_LEN(x) (((x) >> 20) & 0xfff)
862 * HyperTransport sub capability types
864 * Unfortunately there are both 3 bit and 5 bit capability types defined
865 * in the HT spec, catering for that is a little messy. You probably don't
866 * want to use these directly, just use pci_find_ht_capability() and it
867 * will do the right thing for you.
869 #define HT_3BIT_CAP_MASK 0xE0
870 #define HT_CAPTYPE_SLAVE 0x00 /* Slave/Primary link configuration */
871 #define HT_CAPTYPE_HOST 0x20 /* Host/Secondary link configuration */
873 #define HT_5BIT_CAP_MASK 0xF8
874 #define HT_CAPTYPE_IRQ 0x80 /* IRQ Configuration */
875 #define HT_CAPTYPE_REMAPPING_40 0xA0 /* 40 bit address remapping */
876 #define HT_CAPTYPE_REMAPPING_64 0xA2 /* 64 bit address remapping */
877 #define HT_CAPTYPE_UNITID_CLUMP 0x90 /* Unit ID clumping */
878 #define HT_CAPTYPE_EXTCONF 0x98 /* Extended Configuration Space Access */
879 #define HT_CAPTYPE_MSI_MAPPING 0xA8 /* MSI Mapping Capability */
880 #define HT_MSI_FLAGS 0x02 /* Offset to flags */
881 #define HT_MSI_FLAGS_ENABLE 0x1 /* Mapping enable */
882 #define HT_MSI_FLAGS_FIXED 0x2 /* Fixed mapping only */
883 #define HT_MSI_FIXED_ADDR 0x00000000FEE00000ULL /* Fixed addr */
884 #define HT_MSI_ADDR_LO 0x04 /* Offset to low addr bits */
885 #define HT_MSI_ADDR_LO_MASK 0xFFF00000 /* Low address bit mask */
886 #define HT_MSI_ADDR_HI 0x08 /* Offset to high addr bits */
887 #define HT_CAPTYPE_DIRECT_ROUTE 0xB0 /* Direct routing configuration */
888 #define HT_CAPTYPE_VCSET 0xB8 /* Virtual Channel configuration */
889 #define HT_CAPTYPE_ERROR_RETRY 0xC0 /* Retry on error configuration */
890 #define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 HyperTransport configuration */
891 #define HT_CAPTYPE_PM 0xE0 /* HyperTransport power management configuration */
892 #define HT_CAP_SIZEOF_LONG 28 /* slave & primary */
893 #define HT_CAP_SIZEOF_SHORT 24 /* host & secondary */
895 /* Alternative Routing-ID Interpretation */
896 #define PCI_ARI_CAP 0x04 /* ARI Capability Register */
897 #define PCI_ARI_CAP_MFVC 0x0001 /* MFVC Function Groups Capability */
898 #define PCI_ARI_CAP_ACS 0x0002 /* ACS Function Groups Capability */
899 #define PCI_ARI_CAP_NFN(x) (((x) >> 8) & 0xff) /* Next Function Number */
900 #define PCI_ARI_CTRL 0x06 /* ARI Control Register */
901 #define PCI_ARI_CTRL_MFVC 0x0001 /* MFVC Function Groups Enable */
902 #define PCI_ARI_CTRL_ACS 0x0002 /* ACS Function Groups Enable */
903 #define PCI_ARI_CTRL_FG(x) (((x) >> 4) & 7) /* Function Group */
904 #define PCI_EXT_CAP_ARI_SIZEOF 8
906 /* Address Translation Service */
907 #define PCI_ATS_CAP 0x04 /* ATS Capability Register */
908 #define PCI_ATS_CAP_QDEP(x) ((x) & 0x1f) /* Invalidate Queue Depth */
909 #define PCI_ATS_MAX_QDEP 32 /* Max Invalidate Queue Depth */
910 #define PCI_ATS_CAP_PAGE_ALIGNED 0x0020 /* Page Aligned Request */
911 #define PCI_ATS_CTRL 0x06 /* ATS Control Register */
912 #define PCI_ATS_CTRL_ENABLE 0x8000 /* ATS Enable */
913 #define PCI_ATS_CTRL_STU(x) ((x) & 0x1f) /* Smallest Translation Unit */
914 #define PCI_ATS_MIN_STU 12 /* shift of minimum STU block */
915 #define PCI_EXT_CAP_ATS_SIZEOF 8
917 /* Page Request Interface */
918 #define PCI_PRI_CTRL 0x04 /* PRI control register */
919 #define PCI_PRI_CTRL_ENABLE 0x0001 /* Enable */
920 #define PCI_PRI_CTRL_RESET 0x0002 /* Reset */
921 #define PCI_PRI_STATUS 0x06 /* PRI status register */
922 #define PCI_PRI_STATUS_RF 0x0001 /* Response Failure */
923 #define PCI_PRI_STATUS_UPRGI 0x0002 /* Unexpected PRG index */
924 #define PCI_PRI_STATUS_STOPPED 0x0100 /* PRI Stopped */
925 #define PCI_PRI_STATUS_PASID 0x8000 /* PRG Response PASID Required */
926 #define PCI_PRI_MAX_REQ 0x08 /* PRI max reqs supported */
927 #define PCI_PRI_ALLOC_REQ 0x0c /* PRI max reqs allowed */
928 #define PCI_EXT_CAP_PRI_SIZEOF 16
930 /* Process Address Space ID */
931 #define PCI_PASID_CAP 0x04 /* PASID feature register */
932 #define PCI_PASID_CAP_EXEC 0x02 /* Exec permissions Supported */
933 #define PCI_PASID_CAP_PRIV 0x04 /* Privilege Mode Supported */
934 #define PCI_PASID_CTRL 0x06 /* PASID control register */
935 #define PCI_PASID_CTRL_ENABLE 0x01 /* Enable bit */
936 #define PCI_PASID_CTRL_EXEC 0x02 /* Exec permissions Enable */
937 #define PCI_PASID_CTRL_PRIV 0x04 /* Privilege Mode Enable */
938 #define PCI_EXT_CAP_PASID_SIZEOF 8
940 /* Single Root I/O Virtualization */
941 #define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */
942 #define PCI_SRIOV_CAP_VFM 0x00000001 /* VF Migration Capable */
943 #define PCI_SRIOV_CAP_INTR(x) ((x) >> 21) /* Interrupt Message Number */
944 #define PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */
945 #define PCI_SRIOV_CTRL_VFE 0x0001 /* VF Enable */
946 #define PCI_SRIOV_CTRL_VFM 0x0002 /* VF Migration Enable */
947 #define PCI_SRIOV_CTRL_INTR 0x0004 /* VF Migration Interrupt Enable */
948 #define PCI_SRIOV_CTRL_MSE 0x0008 /* VF Memory Space Enable */
949 #define PCI_SRIOV_CTRL_ARI 0x0010 /* ARI Capable Hierarchy */
950 #define PCI_SRIOV_STATUS 0x0a /* SR-IOV Status */
951 #define PCI_SRIOV_STATUS_VFM 0x0001 /* VF Migration Status */
952 #define PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */
953 #define PCI_SRIOV_TOTAL_VF 0x0e /* Total VFs */
954 #define PCI_SRIOV_NUM_VF 0x10 /* Number of VFs */
955 #define PCI_SRIOV_FUNC_LINK 0x12 /* Function Dependency Link */
956 #define PCI_SRIOV_VF_OFFSET 0x14 /* First VF Offset */
957 #define PCI_SRIOV_VF_STRIDE 0x16 /* Following VF Stride */
958 #define PCI_SRIOV_VF_DID 0x1a /* VF Device ID */
959 #define PCI_SRIOV_SUP_PGSIZE 0x1c /* Supported Page Sizes */
960 #define PCI_SRIOV_SYS_PGSIZE 0x20 /* System Page Size */
961 #define PCI_SRIOV_BAR 0x24 /* VF BAR0 */
962 #define PCI_SRIOV_NUM_BARS 6 /* Number of VF BARs */
963 #define PCI_SRIOV_VFM 0x3c /* VF Migration State Array Offset*/
964 #define PCI_SRIOV_VFM_BIR(x) ((x) & 7) /* State BIR */
965 #define PCI_SRIOV_VFM_OFFSET(x) ((x) & ~7) /* State Offset */
966 #define PCI_SRIOV_VFM_UA 0x0 /* Inactive.Unavailable */
967 #define PCI_SRIOV_VFM_MI 0x1 /* Dormant.MigrateIn */
968 #define PCI_SRIOV_VFM_MO 0x2 /* Active.MigrateOut */
969 #define PCI_SRIOV_VFM_AV 0x3 /* Active.Available */
970 #define PCI_EXT_CAP_SRIOV_SIZEOF 0x40
972 #define PCI_LTR_MAX_SNOOP_LAT 0x4
973 #define PCI_LTR_MAX_NOSNOOP_LAT 0x6
974 #define PCI_LTR_VALUE_MASK 0x000003ff
975 #define PCI_LTR_SCALE_MASK 0x00001c00
976 #define PCI_LTR_SCALE_SHIFT 10
977 #define PCI_EXT_CAP_LTR_SIZEOF 8
979 /* Access Control Service */
980 #define PCI_ACS_CAP 0x04 /* ACS Capability Register */
981 #define PCI_ACS_SV 0x0001 /* Source Validation */
982 #define PCI_ACS_TB 0x0002 /* Translation Blocking */
983 #define PCI_ACS_RR 0x0004 /* P2P Request Redirect */
984 #define PCI_ACS_CR 0x0008 /* P2P Completion Redirect */
985 #define PCI_ACS_UF 0x0010 /* Upstream Forwarding */
986 #define PCI_ACS_EC 0x0020 /* P2P Egress Control */
987 #define PCI_ACS_DT 0x0040 /* Direct Translated P2P */
988 #define PCI_ACS_EGRESS_BITS 0x05 /* ACS Egress Control Vector Size */
989 #define PCI_ACS_CTRL 0x06 /* ACS Control Register */
990 #define PCI_ACS_EGRESS_CTL_V 0x08 /* ACS Egress Control Vector */
992 #define PCI_VSEC_HDR 4 /* extended cap - vendor-specific */
993 #define PCI_VSEC_HDR_LEN_SHIFT 20 /* shift for length field */
995 /* SATA capability */
996 #define PCI_SATA_REGS 4 /* SATA REGs specifier */
997 #define PCI_SATA_REGS_MASK 0xF /* location - BAR#/inline */
998 #define PCI_SATA_REGS_INLINE 0xF /* REGS in config space */
999 #define PCI_SATA_SIZEOF_SHORT 8
1000 #define PCI_SATA_SIZEOF_LONG 16
1002 /* Resizable BARs */
1003 #define PCI_REBAR_CAP 4 /* capability register */
1004 #define PCI_REBAR_CAP_SIZES 0x00FFFFF0 /* supported BAR sizes */
1005 #define PCI_REBAR_CTRL 8 /* control register */
1006 #define PCI_REBAR_CTRL_BAR_IDX 0x00000007 /* BAR index */
1007 #define PCI_REBAR_CTRL_NBAR_MASK 0x000000E0 /* # of resizable BARs */
1008 #define PCI_REBAR_CTRL_NBAR_SHIFT 5 /* shift for # of BARs */
1009 #define PCI_REBAR_CTRL_BAR_SIZE 0x00001F00 /* BAR size */
1010 #define PCI_REBAR_CTRL_BAR_SHIFT 8 /* shift for BAR size */
1012 /* Dynamic Power Allocation */
1013 #define PCI_DPA_CAP 4 /* capability register */
1014 #define PCI_DPA_CAP_SUBSTATE_MASK 0x1F /* # substates - 1 */
1015 #define PCI_DPA_BASE_SIZEOF 16 /* size with 0 substates */
1018 #define PCI_TPH_CAP 4 /* capability register */
1019 #define PCI_TPH_CAP_LOC_MASK 0x600 /* location mask */
1020 #define PCI_TPH_LOC_NONE 0x000 /* no location */
1021 #define PCI_TPH_LOC_CAP 0x200 /* in capability */
1022 #define PCI_TPH_LOC_MSIX 0x400 /* in MSI-X */
1023 #define PCI_TPH_CAP_ST_MASK 0x07FF0000 /* ST table mask */
1024 #define PCI_TPH_CAP_ST_SHIFT 16 /* ST table shift */
1025 #define PCI_TPH_BASE_SIZEOF 0xc /* size with no ST table */
1027 /* Downstream Port Containment */
1028 #define PCI_EXP_DPC_CAP 0x04 /* DPC Capability */
1029 #define PCI_EXP_DPC_IRQ 0x001F /* Interrupt Message Number */
1030 #define PCI_EXP_DPC_CAP_RP_EXT 0x0020 /* Root Port Extensions */
1031 #define PCI_EXP_DPC_CAP_POISONED_TLP 0x0040 /* Poisoned TLP Egress Blocking Supported */
1032 #define PCI_EXP_DPC_CAP_SW_TRIGGER 0x0080 /* Software Triggering Supported */
1033 #define PCI_EXP_DPC_RP_PIO_LOG_SIZE 0x0F00 /* RP PIO Log Size */
1034 #define PCI_EXP_DPC_CAP_DL_ACTIVE 0x1000 /* ERR_COR signal on DL_Active supported */
1036 #define PCI_EXP_DPC_CTL 0x06 /* DPC control */
1037 #define PCI_EXP_DPC_CTL_EN_FATAL 0x0001 /* Enable trigger on ERR_FATAL message */
1038 #define PCI_EXP_DPC_CTL_EN_NONFATAL 0x0002 /* Enable trigger on ERR_NONFATAL message */
1039 #define PCI_EXP_DPC_CTL_INT_EN 0x0008 /* DPC Interrupt Enable */
1041 #define PCI_EXP_DPC_STATUS 0x08 /* DPC Status */
1042 #define PCI_EXP_DPC_STATUS_TRIGGER 0x0001 /* Trigger Status */
1043 #define PCI_EXP_DPC_STATUS_TRIGGER_RSN 0x0006 /* Trigger Reason */
1044 #define PCI_EXP_DPC_STATUS_INTERRUPT 0x0008 /* Interrupt Status */
1045 #define PCI_EXP_DPC_RP_BUSY 0x0010 /* Root Port Busy */
1046 #define PCI_EXP_DPC_STATUS_TRIGGER_RSN_EXT 0x0060 /* Trig Reason Extension */
1048 #define PCI_EXP_DPC_SOURCE_ID 0x0A /* DPC Source Identifier */
1050 #define PCI_EXP_DPC_RP_PIO_STATUS 0x0C /* RP PIO Status */
1051 #define PCI_EXP_DPC_RP_PIO_MASK 0x10 /* RP PIO Mask */
1052 #define PCI_EXP_DPC_RP_PIO_SEVERITY 0x14 /* RP PIO Severity */
1053 #define PCI_EXP_DPC_RP_PIO_SYSERROR 0x18 /* RP PIO SysError */
1054 #define PCI_EXP_DPC_RP_PIO_EXCEPTION 0x1C /* RP PIO Exception */
1055 #define PCI_EXP_DPC_RP_PIO_HEADER_LOG 0x20 /* RP PIO Header Log */
1056 #define PCI_EXP_DPC_RP_PIO_IMPSPEC_LOG 0x30 /* RP PIO ImpSpec Log */
1057 #define PCI_EXP_DPC_RP_PIO_TLPPREFIX_LOG 0x34 /* RP PIO TLP Prefix Log */
1059 /* Precision Time Measurement */
1060 #define PCI_PTM_CAP 0x04 /* PTM Capability */
1061 #define PCI_PTM_CAP_REQ 0x00000001 /* Requester capable */
1062 #define PCI_PTM_CAP_RES 0x00000002 /* Responder capable */
1063 #define PCI_PTM_CAP_ROOT 0x00000004 /* Root capable */
1064 #define PCI_PTM_GRANULARITY_MASK 0x0000FF00 /* Clock granularity */
1065 #define PCI_PTM_CTRL 0x08 /* PTM Control */
1066 #define PCI_PTM_CTRL_ENABLE 0x00000001 /* PTM enable */
1067 #define PCI_PTM_CTRL_ROOT 0x00000002 /* Root select */
1069 /* ASPM L1 PM Substates */
1070 #define PCI_L1SS_CAP 0x04 /* Capabilities Register */
1071 #define PCI_L1SS_CAP_PCIPM_L1_2 0x00000001 /* PCI-PM L1.2 Supported */
1072 #define PCI_L1SS_CAP_PCIPM_L1_1 0x00000002 /* PCI-PM L1.1 Supported */
1073 #define PCI_L1SS_CAP_ASPM_L1_2 0x00000004 /* ASPM L1.2 Supported */
1074 #define PCI_L1SS_CAP_ASPM_L1_1 0x00000008 /* ASPM L1.1 Supported */
1075 #define PCI_L1SS_CAP_L1_PM_SS 0x00000010 /* L1 PM Substates Supported */
1076 #define PCI_L1SS_CAP_CM_RESTORE_TIME 0x0000ff00 /* Port Common_Mode_Restore_Time */
1077 #define PCI_L1SS_CAP_P_PWR_ON_SCALE 0x00030000 /* Port T_POWER_ON scale */
1078 #define PCI_L1SS_CAP_P_PWR_ON_VALUE 0x00f80000 /* Port T_POWER_ON value */
1079 #define PCI_L1SS_CTL1 0x08 /* Control 1 Register */
1080 #define PCI_L1SS_CTL1_PCIPM_L1_2 0x00000001 /* PCI-PM L1.2 Enable */
1081 #define PCI_L1SS_CTL1_PCIPM_L1_1 0x00000002 /* PCI-PM L1.1 Enable */
1082 #define PCI_L1SS_CTL1_ASPM_L1_2 0x00000004 /* ASPM L1.2 Enable */
1083 #define PCI_L1SS_CTL1_ASPM_L1_1 0x00000008 /* ASPM L1.1 Enable */
1084 #define PCI_L1SS_CTL1_L1_2_MASK 0x00000005
1085 #define PCI_L1SS_CTL1_L1SS_MASK 0x0000000f
1086 #define PCI_L1SS_CTL1_CM_RESTORE_TIME 0x0000ff00 /* Common_Mode_Restore_Time */
1087 #define PCI_L1SS_CTL1_LTR_L12_TH_VALUE 0x03ff0000 /* LTR_L1.2_THRESHOLD_Value */
1088 #define PCI_L1SS_CTL1_LTR_L12_TH_SCALE 0xe0000000 /* LTR_L1.2_THRESHOLD_Scale */
1089 #define PCI_L1SS_CTL2 0x0c /* Control 2 Register */
1091 /* Designated Vendor-Specific (DVSEC, PCI_EXT_CAP_ID_DVSEC) */
1092 #define PCI_DVSEC_HEADER1 0x4 /* Designated Vendor-Specific Header1 */
1093 #define PCI_DVSEC_HEADER1_VID(x) ((x) & 0xffff)
1094 #define PCI_DVSEC_HEADER1_REV(x) (((x) >> 16) & 0xf)
1095 #define PCI_DVSEC_HEADER1_LEN(x) (((x) >> 20) & 0xfff)
1096 #define PCI_DVSEC_HEADER2 0x8 /* Designated Vendor-Specific Header2 */
1097 #define PCI_DVSEC_HEADER2_ID(x) ((x) & 0xffff)
1099 /* Data Link Feature */
1100 #define PCI_DLF_CAP 0x04 /* Capabilities Register */
1101 #define PCI_DLF_EXCHANGE_ENABLE 0x80000000 /* Data Link Feature Exchange Enable */
1103 /* Physical Layer 16.0 GT/s */
1104 #define PCI_PL_16GT_LE_CTRL 0x20 /* Lane Equalization Control Register */
1105 #define PCI_PL_16GT_LE_CTRL_DSP_TX_PRESET_MASK 0x0000000F
1106 #define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_MASK 0x000000F0
1107 #define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_SHIFT 4
1109 /* Data Object Exchange */
1110 #define PCI_DOE_CAP 0x04 /* DOE Capabilities Register */
1111 #define PCI_DOE_CAP_INT_SUP 0x00000001 /* Interrupt Support */
1112 #define PCI_DOE_CAP_INT_MSG_NUM 0x00000ffe /* Interrupt Message Number */
1113 #define PCI_DOE_CTRL 0x08 /* DOE Control Register */
1114 #define PCI_DOE_CTRL_ABORT 0x00000001 /* DOE Abort */
1115 #define PCI_DOE_CTRL_INT_EN 0x00000002 /* DOE Interrupt Enable */
1116 #define PCI_DOE_CTRL_GO 0x80000000 /* DOE Go */
1117 #define PCI_DOE_STATUS 0x0c /* DOE Status Register */
1118 #define PCI_DOE_STATUS_BUSY 0x00000001 /* DOE Busy */
1119 #define PCI_DOE_STATUS_INT_STATUS 0x00000002 /* DOE Interrupt Status */
1120 #define PCI_DOE_STATUS_ERROR 0x00000004 /* DOE Error */
1121 #define PCI_DOE_STATUS_DATA_OBJECT_READY 0x80000000 /* Data Object Ready */
1122 #define PCI_DOE_WRITE 0x10 /* DOE Write Data Mailbox Register */
1123 #define PCI_DOE_READ 0x14 /* DOE Read Data Mailbox Register */
1124 #define PCI_DOE_CAP_SIZEOF 0x18 /* Size of DOE register block */
1126 /* DOE Data Object - note not actually registers */
1127 #define PCI_DOE_DATA_OBJECT_HEADER_1_VID 0x0000ffff
1128 #define PCI_DOE_DATA_OBJECT_HEADER_1_TYPE 0x00ff0000
1129 #define PCI_DOE_DATA_OBJECT_HEADER_2_LENGTH 0x0003ffff
1131 #define PCI_DOE_DATA_OBJECT_DISC_REQ_3_INDEX 0x000000ff
1132 #define PCI_DOE_DATA_OBJECT_DISC_RSP_3_VID 0x0000ffff
1133 #define PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL 0x00ff0000
1134 #define PCI_DOE_DATA_OBJECT_DISC_RSP_3_NEXT_INDEX 0xff000000
1136 #endif /* LINUX_PCI_REGS_H */
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