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1628 serge 1
/*
2
 *	pci_regs.h
3
 *
4
 *	PCI standard defines
5
 *	Copyright 1994, Drew Eckhardt
6
 *	Copyright 1997--1999 Martin Mares 
7
 *
8
 *	For more information, please consult the following manuals (look at
9
 *	http://www.pcisig.com/ for how to get them):
10
 *
11
 *	PCI BIOS Specification
12
 *	PCI Local Bus Specification
13
 *	PCI to PCI Bridge Specification
14
 *	PCI System Design Guide
15
 *
16
 * 	For hypertransport information, please consult the following manuals
17
 * 	from http://www.hypertransport.org
18
 *
19
 *	The Hypertransport I/O Link Specification
20
 */
21
 
22
#ifndef LINUX_PCI_REGS_H
23
#define LINUX_PCI_REGS_H
24
 
25
/*
26
 * Under PCI, each device has 256 bytes of configuration address space,
27
 * of which the first 64 bytes are standardized as follows:
28
 */
29
#define PCI_VENDOR_ID		0x00	/* 16 bits */
30
#define PCI_DEVICE_ID		0x02	/* 16 bits */
31
#define PCI_COMMAND		0x04	/* 16 bits */
32
#define  PCI_COMMAND_IO		0x1	/* Enable response in I/O space */
33
#define  PCI_COMMAND_MEMORY	0x2	/* Enable response in Memory space */
34
#define  PCI_COMMAND_MASTER	0x4	/* Enable bus mastering */
35
#define  PCI_COMMAND_SPECIAL	0x8	/* Enable response to special cycles */
36
#define  PCI_COMMAND_INVALIDATE	0x10	/* Use memory write and invalidate */
37
#define  PCI_COMMAND_VGA_PALETTE 0x20	/* Enable palette snooping */
38
#define  PCI_COMMAND_PARITY	0x40	/* Enable parity checking */
39
#define  PCI_COMMAND_WAIT 	0x80	/* Enable address/data stepping */
40
#define  PCI_COMMAND_SERR	0x100	/* Enable SERR */
41
#define  PCI_COMMAND_FAST_BACK	0x200	/* Enable back-to-back writes */
42
#define  PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
43
 
44
#define PCI_STATUS		0x06	/* 16 bits */
45
#define  PCI_STATUS_INTERRUPT	0x08	/* Interrupt status */
46
#define  PCI_STATUS_CAP_LIST	0x10	/* Support Capability List */
47
#define  PCI_STATUS_66MHZ	0x20	/* Support 66 Mhz PCI 2.1 bus */
48
#define  PCI_STATUS_UDF		0x40	/* Support User Definable Features [obsolete] */
49
#define  PCI_STATUS_FAST_BACK	0x80	/* Accept fast-back to back */
50
#define  PCI_STATUS_PARITY	0x100	/* Detected parity error */
51
#define  PCI_STATUS_DEVSEL_MASK	0x600	/* DEVSEL timing */
52
#define  PCI_STATUS_DEVSEL_FAST		0x000
53
#define  PCI_STATUS_DEVSEL_MEDIUM	0x200
54
#define  PCI_STATUS_DEVSEL_SLOW		0x400
55
#define  PCI_STATUS_SIG_TARGET_ABORT	0x800 /* Set on target abort */
56
#define  PCI_STATUS_REC_TARGET_ABORT	0x1000 /* Master ack of " */
57
#define  PCI_STATUS_REC_MASTER_ABORT	0x2000 /* Set on master abort */
58
#define  PCI_STATUS_SIG_SYSTEM_ERROR	0x4000 /* Set when we drive SERR */
59
#define  PCI_STATUS_DETECTED_PARITY	0x8000 /* Set on parity error */
60
 
61
#define PCI_CLASS_REVISION	0x08	/* High 24 bits are class, low 8 revision */
62
#define PCI_REVISION_ID		0x08	/* Revision ID */
63
#define PCI_CLASS_PROG		0x09	/* Reg. Level Programming Interface */
64
#define PCI_CLASS_DEVICE	0x0a	/* Device class */
65
 
66
#define PCI_CACHE_LINE_SIZE	0x0c	/* 8 bits */
67
#define PCI_LATENCY_TIMER	0x0d	/* 8 bits */
68
#define PCI_HEADER_TYPE		0x0e	/* 8 bits */
69
#define  PCI_HEADER_TYPE_NORMAL		0
70
#define  PCI_HEADER_TYPE_BRIDGE		1
71
#define  PCI_HEADER_TYPE_CARDBUS	2
72
 
73
#define PCI_BIST		0x0f	/* 8 bits */
74
#define  PCI_BIST_CODE_MASK	0x0f	/* Return result */
75
#define  PCI_BIST_START		0x40	/* 1 to start BIST, 2 secs or less */
76
#define  PCI_BIST_CAPABLE	0x80	/* 1 if BIST capable */
77
 
78
/*
79
 * Base addresses specify locations in memory or I/O space.
80
 * Decoded size can be determined by writing a value of
81
 * 0xffffffff to the register, and reading it back.  Only
82
 * 1 bits are decoded.
83
 */
84
#define PCI_BASE_ADDRESS_0	0x10	/* 32 bits */
85
#define PCI_BASE_ADDRESS_1	0x14	/* 32 bits [htype 0,1 only] */
86
#define PCI_BASE_ADDRESS_2	0x18	/* 32 bits [htype 0 only] */
87
#define PCI_BASE_ADDRESS_3	0x1c	/* 32 bits */
88
#define PCI_BASE_ADDRESS_4	0x20	/* 32 bits */
89
#define PCI_BASE_ADDRESS_5	0x24	/* 32 bits */
90
#define  PCI_BASE_ADDRESS_SPACE		0x01	/* 0 = memory, 1 = I/O */
91
#define  PCI_BASE_ADDRESS_SPACE_IO	0x01
92
#define  PCI_BASE_ADDRESS_SPACE_MEMORY	0x00
93
#define  PCI_BASE_ADDRESS_MEM_TYPE_MASK	0x06
94
#define  PCI_BASE_ADDRESS_MEM_TYPE_32	0x00	/* 32 bit address */
95
#define  PCI_BASE_ADDRESS_MEM_TYPE_1M	0x02	/* Below 1M [obsolete] */
96
#define  PCI_BASE_ADDRESS_MEM_TYPE_64	0x04	/* 64 bit address */
97
#define  PCI_BASE_ADDRESS_MEM_PREFETCH	0x08	/* prefetchable? */
98
#define  PCI_BASE_ADDRESS_MEM_MASK	(~0x0fUL)
99
#define  PCI_BASE_ADDRESS_IO_MASK	(~0x03UL)
100
/* bit 1 is reserved if address_space = 1 */
101
 
102
/* Header type 0 (normal devices) */
103
#define PCI_CARDBUS_CIS		0x28
104
#define PCI_SUBSYSTEM_VENDOR_ID	0x2c
105
#define PCI_SUBSYSTEM_ID	0x2e
106
#define PCI_ROM_ADDRESS		0x30	/* Bits 31..11 are address, 10..1 reserved */
107
#define  PCI_ROM_ADDRESS_ENABLE	0x01
108
#define PCI_ROM_ADDRESS_MASK	(~0x7ffUL)
109
 
110
#define PCI_CAPABILITY_LIST	0x34	/* Offset of first capability list entry */
111
 
112
/* 0x35-0x3b are reserved */
113
#define PCI_INTERRUPT_LINE	0x3c	/* 8 bits */
114
#define PCI_INTERRUPT_PIN	0x3d	/* 8 bits */
115
#define PCI_MIN_GNT		0x3e	/* 8 bits */
116
#define PCI_MAX_LAT		0x3f	/* 8 bits */
117
 
118
/* Header type 1 (PCI-to-PCI bridges) */
119
#define PCI_PRIMARY_BUS		0x18	/* Primary bus number */
120
#define PCI_SECONDARY_BUS	0x19	/* Secondary bus number */
121
#define PCI_SUBORDINATE_BUS	0x1a	/* Highest bus number behind the bridge */
122
#define PCI_SEC_LATENCY_TIMER	0x1b	/* Latency timer for secondary interface */
123
#define PCI_IO_BASE		0x1c	/* I/O range behind the bridge */
124
#define PCI_IO_LIMIT		0x1d
125
#define  PCI_IO_RANGE_TYPE_MASK	0x0fUL	/* I/O bridging type */
126
#define  PCI_IO_RANGE_TYPE_16	0x00
127
#define  PCI_IO_RANGE_TYPE_32	0x01
128
#define  PCI_IO_RANGE_MASK	(~0x0fUL)
129
#define PCI_SEC_STATUS		0x1e	/* Secondary status register, only bit 14 used */
130
#define PCI_MEMORY_BASE		0x20	/* Memory range behind */
131
#define PCI_MEMORY_LIMIT	0x22
132
#define  PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL
133
#define  PCI_MEMORY_RANGE_MASK	(~0x0fUL)
134
#define PCI_PREF_MEMORY_BASE	0x24	/* Prefetchable memory range behind */
135
#define PCI_PREF_MEMORY_LIMIT	0x26
136
#define  PCI_PREF_RANGE_TYPE_MASK 0x0fUL
137
#define  PCI_PREF_RANGE_TYPE_32	0x00
138
#define  PCI_PREF_RANGE_TYPE_64	0x01
139
#define  PCI_PREF_RANGE_MASK	(~0x0fUL)
140
#define PCI_PREF_BASE_UPPER32	0x28	/* Upper half of prefetchable memory range */
141
#define PCI_PREF_LIMIT_UPPER32	0x2c
142
#define PCI_IO_BASE_UPPER16	0x30	/* Upper half of I/O addresses */
143
#define PCI_IO_LIMIT_UPPER16	0x32
144
/* 0x34 same as for htype 0 */
145
/* 0x35-0x3b is reserved */
146
#define PCI_ROM_ADDRESS1	0x38	/* Same as PCI_ROM_ADDRESS, but for htype 1 */
147
/* 0x3c-0x3d are same as for htype 0 */
148
#define PCI_BRIDGE_CONTROL	0x3e
149
#define  PCI_BRIDGE_CTL_PARITY	0x01	/* Enable parity detection on secondary interface */
150
#define  PCI_BRIDGE_CTL_SERR	0x02	/* The same for SERR forwarding */
151
#define  PCI_BRIDGE_CTL_ISA	0x04	/* Enable ISA mode */
152
#define  PCI_BRIDGE_CTL_VGA	0x08	/* Forward VGA addresses */
153
#define  PCI_BRIDGE_CTL_MASTER_ABORT	0x20  /* Report master aborts */
154
#define  PCI_BRIDGE_CTL_BUS_RESET	0x40	/* Secondary bus reset */
155
#define  PCI_BRIDGE_CTL_FAST_BACK	0x80	/* Fast Back2Back enabled on secondary interface */
156
 
157
/* Header type 2 (CardBus bridges) */
158
#define PCI_CB_CAPABILITY_LIST	0x14
159
/* 0x15 reserved */
160
#define PCI_CB_SEC_STATUS	0x16	/* Secondary status */
161
#define PCI_CB_PRIMARY_BUS	0x18	/* PCI bus number */
162
#define PCI_CB_CARD_BUS		0x19	/* CardBus bus number */
163
#define PCI_CB_SUBORDINATE_BUS	0x1a	/* Subordinate bus number */
164
#define PCI_CB_LATENCY_TIMER	0x1b	/* CardBus latency timer */
165
#define PCI_CB_MEMORY_BASE_0	0x1c
166
#define PCI_CB_MEMORY_LIMIT_0	0x20
167
#define PCI_CB_MEMORY_BASE_1	0x24
168
#define PCI_CB_MEMORY_LIMIT_1	0x28
169
#define PCI_CB_IO_BASE_0	0x2c
170
#define PCI_CB_IO_BASE_0_HI	0x2e
171
#define PCI_CB_IO_LIMIT_0	0x30
172
#define PCI_CB_IO_LIMIT_0_HI	0x32
173
#define PCI_CB_IO_BASE_1	0x34
174
#define PCI_CB_IO_BASE_1_HI	0x36
175
#define PCI_CB_IO_LIMIT_1	0x38
176
#define PCI_CB_IO_LIMIT_1_HI	0x3a
177
#define  PCI_CB_IO_RANGE_MASK	(~0x03UL)
178
/* 0x3c-0x3d are same as for htype 0 */
179
#define PCI_CB_BRIDGE_CONTROL	0x3e
180
#define  PCI_CB_BRIDGE_CTL_PARITY	0x01	/* Similar to standard bridge control register */
181
#define  PCI_CB_BRIDGE_CTL_SERR		0x02
182
#define  PCI_CB_BRIDGE_CTL_ISA		0x04
183
#define  PCI_CB_BRIDGE_CTL_VGA		0x08
184
#define  PCI_CB_BRIDGE_CTL_MASTER_ABORT	0x20
185
#define  PCI_CB_BRIDGE_CTL_CB_RESET	0x40	/* CardBus reset */
186
#define  PCI_CB_BRIDGE_CTL_16BIT_INT	0x80	/* Enable interrupt for 16-bit cards */
187
#define  PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100	/* Prefetch enable for both memory regions */
188
#define  PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
189
#define  PCI_CB_BRIDGE_CTL_POST_WRITES	0x400
190
#define PCI_CB_SUBSYSTEM_VENDOR_ID	0x40
191
#define PCI_CB_SUBSYSTEM_ID		0x42
192
#define PCI_CB_LEGACY_MODE_BASE		0x44	/* 16-bit PC Card legacy mode base address (ExCa) */
193
/* 0x48-0x7f reserved */
194
 
195
/* Capability lists */
196
 
197
#define PCI_CAP_LIST_ID		0	/* Capability ID */
198
#define  PCI_CAP_ID_PM		0x01	/* Power Management */
199
#define  PCI_CAP_ID_AGP		0x02	/* Accelerated Graphics Port */
200
#define  PCI_CAP_ID_VPD		0x03	/* Vital Product Data */
201
#define  PCI_CAP_ID_SLOTID	0x04	/* Slot Identification */
202
#define  PCI_CAP_ID_MSI		0x05	/* Message Signalled Interrupts */
203
#define  PCI_CAP_ID_CHSWP	0x06	/* CompactPCI HotSwap */
204
#define  PCI_CAP_ID_PCIX	0x07	/* PCI-X */
205
#define  PCI_CAP_ID_HT		0x08	/* HyperTransport */
206
#define  PCI_CAP_ID_VNDR	0x09	/* Vendor specific */
207
#define  PCI_CAP_ID_DBG		0x0A	/* Debug port */
208
#define  PCI_CAP_ID_CCRC	0x0B	/* CompactPCI Central Resource Control */
209
#define  PCI_CAP_ID_SHPC 	0x0C	/* PCI Standard Hot-Plug Controller */
210
#define  PCI_CAP_ID_SSVID	0x0D	/* Bridge subsystem vendor/device ID */
211
#define  PCI_CAP_ID_AGP3	0x0E	/* AGP Target PCI-PCI bridge */
212
#define  PCI_CAP_ID_EXP 	0x10	/* PCI Express */
213
#define  PCI_CAP_ID_MSIX	0x11	/* MSI-X */
214
#define  PCI_CAP_ID_AF		0x13	/* PCI Advanced Features */
215
#define PCI_CAP_LIST_NEXT	1	/* Next capability in the list */
216
#define PCI_CAP_FLAGS		2	/* Capability defined flags (16 bits) */
217
#define PCI_CAP_SIZEOF		4
218
 
219
/* Power Management Registers */
220
 
221
#define PCI_PM_PMC		2	/* PM Capabilities Register */
222
#define  PCI_PM_CAP_VER_MASK	0x0007	/* Version */
223
#define  PCI_PM_CAP_PME_CLOCK	0x0008	/* PME clock required */
224
#define  PCI_PM_CAP_RESERVED    0x0010  /* Reserved field */
225
#define  PCI_PM_CAP_DSI		0x0020	/* Device specific initialization */
1970 serge 226
#define  PCI_PM_CAP_AUX_POWER	0x01C0	/* Auxiliary power support mask */
1628 serge 227
#define  PCI_PM_CAP_D1		0x0200	/* D1 power state support */
228
#define  PCI_PM_CAP_D2		0x0400	/* D2 power state support */
229
#define  PCI_PM_CAP_PME		0x0800	/* PME pin supported */
230
#define  PCI_PM_CAP_PME_MASK	0xF800	/* PME Mask of all supported states */
231
#define  PCI_PM_CAP_PME_D0	0x0800	/* PME# from D0 */
232
#define  PCI_PM_CAP_PME_D1	0x1000	/* PME# from D1 */
233
#define  PCI_PM_CAP_PME_D2	0x2000	/* PME# from D2 */
234
#define  PCI_PM_CAP_PME_D3	0x4000	/* PME# from D3 (hot) */
235
#define  PCI_PM_CAP_PME_D3cold	0x8000	/* PME# from D3 (cold) */
236
#define  PCI_PM_CAP_PME_SHIFT	11	/* Start of the PME Mask in PMC */
237
#define PCI_PM_CTRL		4	/* PM control and status register */
238
#define  PCI_PM_CTRL_STATE_MASK	0x0003	/* Current power state (D0 to D3) */
239
#define  PCI_PM_CTRL_NO_SOFT_RESET	0x0008	/* No reset for D3hot->D0 */
240
#define  PCI_PM_CTRL_PME_ENABLE	0x0100	/* PME pin enable */
241
#define  PCI_PM_CTRL_DATA_SEL_MASK	0x1e00	/* Data select (??) */
242
#define  PCI_PM_CTRL_DATA_SCALE_MASK	0x6000	/* Data scale (??) */
243
#define  PCI_PM_CTRL_PME_STATUS	0x8000	/* PME pin status */
244
#define PCI_PM_PPB_EXTENSIONS	6	/* PPB support extensions (??) */
245
#define  PCI_PM_PPB_B2_B3	0x40	/* Stop clock when in D3hot (??) */
246
#define  PCI_PM_BPCC_ENABLE	0x80	/* Bus power/clock control enable (??) */
247
#define PCI_PM_DATA_REGISTER	7	/* (??) */
248
#define PCI_PM_SIZEOF		8
249
 
250
/* AGP registers */
251
 
252
#define PCI_AGP_VERSION		2	/* BCD version number */
253
#define PCI_AGP_RFU		3	/* Rest of capability flags */
254
#define PCI_AGP_STATUS		4	/* Status register */
255
#define  PCI_AGP_STATUS_RQ_MASK	0xff000000	/* Maximum number of requests - 1 */
256
#define  PCI_AGP_STATUS_SBA	0x0200	/* Sideband addressing supported */
257
#define  PCI_AGP_STATUS_64BIT	0x0020	/* 64-bit addressing supported */
258
#define  PCI_AGP_STATUS_FW	0x0010	/* FW transfers supported */
259
#define  PCI_AGP_STATUS_RATE4	0x0004	/* 4x transfer rate supported */
260
#define  PCI_AGP_STATUS_RATE2	0x0002	/* 2x transfer rate supported */
261
#define  PCI_AGP_STATUS_RATE1	0x0001	/* 1x transfer rate supported */
262
#define PCI_AGP_COMMAND		8	/* Control register */
263
#define  PCI_AGP_COMMAND_RQ_MASK 0xff000000  /* Master: Maximum number of requests */
264
#define  PCI_AGP_COMMAND_SBA	0x0200	/* Sideband addressing enabled */
265
#define  PCI_AGP_COMMAND_AGP	0x0100	/* Allow processing of AGP transactions */
266
#define  PCI_AGP_COMMAND_64BIT	0x0020 	/* Allow processing of 64-bit addresses */
267
#define  PCI_AGP_COMMAND_FW	0x0010 	/* Force FW transfers */
268
#define  PCI_AGP_COMMAND_RATE4	0x0004	/* Use 4x rate */
269
#define  PCI_AGP_COMMAND_RATE2	0x0002	/* Use 2x rate */
270
#define  PCI_AGP_COMMAND_RATE1	0x0001	/* Use 1x rate */
271
#define PCI_AGP_SIZEOF		12
272
 
273
/* Vital Product Data */
274
 
275
#define PCI_VPD_ADDR		2	/* Address to access (15 bits!) */
276
#define  PCI_VPD_ADDR_MASK	0x7fff	/* Address mask */
277
#define  PCI_VPD_ADDR_F		0x8000	/* Write 0, 1 indicates completion */
278
#define PCI_VPD_DATA		4	/* 32-bits of data returned here */
279
 
280
/* Slot Identification */
281
 
282
#define PCI_SID_ESR		2	/* Expansion Slot Register */
283
#define  PCI_SID_ESR_NSLOTS	0x1f	/* Number of expansion slots available */
284
#define  PCI_SID_ESR_FIC	0x20	/* First In Chassis Flag */
285
#define PCI_SID_CHASSIS_NR	3	/* Chassis Number */
286
 
287
/* Message Signalled Interrupts registers */
288
 
289
#define PCI_MSI_FLAGS		2	/* Various flags */
290
#define  PCI_MSI_FLAGS_64BIT	0x80	/* 64-bit addresses allowed */
291
#define  PCI_MSI_FLAGS_QSIZE	0x70	/* Message queue size configured */
292
#define  PCI_MSI_FLAGS_QMASK	0x0e	/* Maximum queue size available */
293
#define  PCI_MSI_FLAGS_ENABLE	0x01	/* MSI feature enabled */
294
#define  PCI_MSI_FLAGS_MASKBIT	0x100	/* 64-bit mask bits allowed */
295
#define PCI_MSI_RFU		3	/* Rest of capability flags */
296
#define PCI_MSI_ADDRESS_LO	4	/* Lower 32 bits */
297
#define PCI_MSI_ADDRESS_HI	8	/* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
298
#define PCI_MSI_DATA_32		8	/* 16 bits of data for 32-bit devices */
299
#define PCI_MSI_MASK_32		12	/* Mask bits register for 32-bit devices */
300
#define PCI_MSI_DATA_64		12	/* 16 bits of data for 64-bit devices */
301
#define PCI_MSI_MASK_64		16	/* Mask bits register for 64-bit devices */
302
 
1970 serge 303
/* MSI-X registers */
1628 serge 304
#define PCI_MSIX_FLAGS		2
305
#define  PCI_MSIX_FLAGS_QSIZE	0x7FF
306
#define  PCI_MSIX_FLAGS_ENABLE	(1 << 15)
307
#define  PCI_MSIX_FLAGS_MASKALL	(1 << 14)
1970 serge 308
#define PCI_MSIX_TABLE		4
309
#define PCI_MSIX_PBA		8
1628 serge 310
#define PCI_MSIX_FLAGS_BIRMASK	(7 << 0)
311
 
1970 serge 312
/* MSI-X entry's format */
313
#define PCI_MSIX_ENTRY_SIZE		16
314
#define  PCI_MSIX_ENTRY_LOWER_ADDR	0
315
#define  PCI_MSIX_ENTRY_UPPER_ADDR	4
316
#define  PCI_MSIX_ENTRY_DATA		8
317
#define  PCI_MSIX_ENTRY_VECTOR_CTRL	12
318
#define   PCI_MSIX_ENTRY_CTRL_MASKBIT	1
319
 
1628 serge 320
/* CompactPCI Hotswap Register */
321
 
322
#define PCI_CHSWP_CSR		2	/* Control and Status Register */
323
#define  PCI_CHSWP_DHA		0x01	/* Device Hiding Arm */
324
#define  PCI_CHSWP_EIM		0x02	/* ENUM# Signal Mask */
325
#define  PCI_CHSWP_PIE		0x04	/* Pending Insert or Extract */
326
#define  PCI_CHSWP_LOO		0x08	/* LED On / Off */
327
#define  PCI_CHSWP_PI		0x30	/* Programming Interface */
328
#define  PCI_CHSWP_EXT		0x40	/* ENUM# status - extraction */
329
#define  PCI_CHSWP_INS		0x80	/* ENUM# status - insertion */
330
 
331
/* PCI Advanced Feature registers */
332
 
333
#define PCI_AF_LENGTH		2
334
#define PCI_AF_CAP		3
335
#define  PCI_AF_CAP_TP		0x01
336
#define  PCI_AF_CAP_FLR		0x02
337
#define PCI_AF_CTRL		4
338
#define  PCI_AF_CTRL_FLR	0x01
339
#define PCI_AF_STATUS		5
340
#define  PCI_AF_STATUS_TP	0x01
341
 
342
/* PCI-X registers */
343
 
344
#define PCI_X_CMD		2	/* Modes & Features */
345
#define  PCI_X_CMD_DPERR_E	0x0001	/* Data Parity Error Recovery Enable */
346
#define  PCI_X_CMD_ERO		0x0002	/* Enable Relaxed Ordering */
347
#define  PCI_X_CMD_READ_512	0x0000	/* 512 byte maximum read byte count */
348
#define  PCI_X_CMD_READ_1K	0x0004	/* 1Kbyte maximum read byte count */
349
#define  PCI_X_CMD_READ_2K	0x0008	/* 2Kbyte maximum read byte count */
350
#define  PCI_X_CMD_READ_4K	0x000c	/* 4Kbyte maximum read byte count */
351
#define  PCI_X_CMD_MAX_READ	0x000c	/* Max Memory Read Byte Count */
352
				/* Max # of outstanding split transactions */
353
#define  PCI_X_CMD_SPLIT_1	0x0000	/* Max 1 */
354
#define  PCI_X_CMD_SPLIT_2	0x0010	/* Max 2 */
355
#define  PCI_X_CMD_SPLIT_3	0x0020	/* Max 3 */
356
#define  PCI_X_CMD_SPLIT_4	0x0030	/* Max 4 */
357
#define  PCI_X_CMD_SPLIT_8	0x0040	/* Max 8 */
358
#define  PCI_X_CMD_SPLIT_12	0x0050	/* Max 12 */
359
#define  PCI_X_CMD_SPLIT_16	0x0060	/* Max 16 */
360
#define  PCI_X_CMD_SPLIT_32	0x0070	/* Max 32 */
361
#define  PCI_X_CMD_MAX_SPLIT	0x0070	/* Max Outstanding Split Transactions */
362
#define  PCI_X_CMD_VERSION(x) 	(((x) >> 12) & 3) /* Version */
363
#define PCI_X_STATUS		4	/* PCI-X capabilities */
364
#define  PCI_X_STATUS_DEVFN	0x000000ff	/* A copy of devfn */
365
#define  PCI_X_STATUS_BUS	0x0000ff00	/* A copy of bus nr */
366
#define  PCI_X_STATUS_64BIT	0x00010000	/* 64-bit device */
367
#define  PCI_X_STATUS_133MHZ	0x00020000	/* 133 MHz capable */
368
#define  PCI_X_STATUS_SPL_DISC	0x00040000	/* Split Completion Discarded */
369
#define  PCI_X_STATUS_UNX_SPL	0x00080000	/* Unexpected Split Completion */
370
#define  PCI_X_STATUS_COMPLEX	0x00100000	/* Device Complexity */
371
#define  PCI_X_STATUS_MAX_READ	0x00600000	/* Designed Max Memory Read Count */
372
#define  PCI_X_STATUS_MAX_SPLIT	0x03800000	/* Designed Max Outstanding Split Transactions */
373
#define  PCI_X_STATUS_MAX_CUM	0x1c000000	/* Designed Max Cumulative Read Size */
374
#define  PCI_X_STATUS_SPL_ERR	0x20000000	/* Rcvd Split Completion Error Msg */
375
#define  PCI_X_STATUS_266MHZ	0x40000000	/* 266 MHz capable */
376
#define  PCI_X_STATUS_533MHZ	0x80000000	/* 533 MHz capable */
377
 
378
/* PCI Bridge Subsystem ID registers */
379
 
380
#define PCI_SSVID_VENDOR_ID     4	/* PCI-Bridge subsystem vendor id register */
381
#define PCI_SSVID_DEVICE_ID     6	/* PCI-Bridge subsystem device id register */
382
 
383
/* PCI Express capability registers */
384
 
385
#define PCI_EXP_FLAGS		2	/* Capabilities register */
386
#define PCI_EXP_FLAGS_VERS	0x000f	/* Capability version */
387
#define PCI_EXP_FLAGS_TYPE	0x00f0	/* Device/Port type */
388
#define  PCI_EXP_TYPE_ENDPOINT	0x0	/* Express Endpoint */
389
#define  PCI_EXP_TYPE_LEG_END	0x1	/* Legacy Endpoint */
390
#define  PCI_EXP_TYPE_ROOT_PORT 0x4	/* Root Port */
391
#define  PCI_EXP_TYPE_UPSTREAM	0x5	/* Upstream Port */
392
#define  PCI_EXP_TYPE_DOWNSTREAM 0x6	/* Downstream Port */
393
#define  PCI_EXP_TYPE_PCI_BRIDGE 0x7	/* PCI/PCI-X Bridge */
394
#define  PCI_EXP_TYPE_RC_END	0x9	/* Root Complex Integrated Endpoint */
395
#define  PCI_EXP_TYPE_RC_EC	0x10	/* Root Complex Event Collector */
396
#define PCI_EXP_FLAGS_SLOT	0x0100	/* Slot implemented */
397
#define PCI_EXP_FLAGS_IRQ	0x3e00	/* Interrupt message number */
398
#define PCI_EXP_DEVCAP		4	/* Device capabilities */
399
#define  PCI_EXP_DEVCAP_PAYLOAD	0x07	/* Max_Payload_Size */
400
#define  PCI_EXP_DEVCAP_PHANTOM	0x18	/* Phantom functions */
401
#define  PCI_EXP_DEVCAP_EXT_TAG	0x20	/* Extended tags */
402
#define  PCI_EXP_DEVCAP_L0S	0x1c0	/* L0s Acceptable Latency */
403
#define  PCI_EXP_DEVCAP_L1	0xe00	/* L1 Acceptable Latency */
404
#define  PCI_EXP_DEVCAP_ATN_BUT	0x1000	/* Attention Button Present */
405
#define  PCI_EXP_DEVCAP_ATN_IND	0x2000	/* Attention Indicator Present */
406
#define  PCI_EXP_DEVCAP_PWR_IND	0x4000	/* Power Indicator Present */
407
#define  PCI_EXP_DEVCAP_RBER	0x8000	/* Role-Based Error Reporting */
408
#define  PCI_EXP_DEVCAP_PWR_VAL	0x3fc0000 /* Slot Power Limit Value */
409
#define  PCI_EXP_DEVCAP_PWR_SCL	0xc000000 /* Slot Power Limit Scale */
410
#define  PCI_EXP_DEVCAP_FLR     0x10000000 /* Function Level Reset */
411
#define PCI_EXP_DEVCTL		8	/* Device Control */
412
#define  PCI_EXP_DEVCTL_CERE	0x0001	/* Correctable Error Reporting En. */
413
#define  PCI_EXP_DEVCTL_NFERE	0x0002	/* Non-Fatal Error Reporting Enable */
414
#define  PCI_EXP_DEVCTL_FERE	0x0004	/* Fatal Error Reporting Enable */
415
#define  PCI_EXP_DEVCTL_URRE	0x0008	/* Unsupported Request Reporting En. */
416
#define  PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
417
#define  PCI_EXP_DEVCTL_PAYLOAD	0x00e0	/* Max_Payload_Size */
418
#define  PCI_EXP_DEVCTL_EXT_TAG	0x0100	/* Extended Tag Field Enable */
419
#define  PCI_EXP_DEVCTL_PHANTOM	0x0200	/* Phantom Functions Enable */
420
#define  PCI_EXP_DEVCTL_AUX_PME	0x0400	/* Auxiliary Power PM Enable */
421
#define  PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800  /* Enable No Snoop */
422
#define  PCI_EXP_DEVCTL_READRQ	0x7000	/* Max_Read_Request_Size */
423
#define  PCI_EXP_DEVCTL_BCR_FLR 0x8000  /* Bridge Configuration Retry / FLR */
424
#define PCI_EXP_DEVSTA		10	/* Device Status */
425
#define  PCI_EXP_DEVSTA_CED	0x01	/* Correctable Error Detected */
426
#define  PCI_EXP_DEVSTA_NFED	0x02	/* Non-Fatal Error Detected */
427
#define  PCI_EXP_DEVSTA_FED	0x04	/* Fatal Error Detected */
428
#define  PCI_EXP_DEVSTA_URD	0x08	/* Unsupported Request Detected */
429
#define  PCI_EXP_DEVSTA_AUXPD	0x10	/* AUX Power Detected */
430
#define  PCI_EXP_DEVSTA_TRPND	0x20	/* Transactions Pending */
431
#define PCI_EXP_LNKCAP		12	/* Link Capabilities */
432
#define  PCI_EXP_LNKCAP_SLS	0x0000000f /* Supported Link Speeds */
433
#define  PCI_EXP_LNKCAP_MLW	0x000003f0 /* Maximum Link Width */
434
#define  PCI_EXP_LNKCAP_ASPMS	0x00000c00 /* ASPM Support */
435
#define  PCI_EXP_LNKCAP_L0SEL	0x00007000 /* L0s Exit Latency */
436
#define  PCI_EXP_LNKCAP_L1EL	0x00038000 /* L1 Exit Latency */
437
#define  PCI_EXP_LNKCAP_CLKPM	0x00040000 /* L1 Clock Power Management */
1970 serge 438
#define  PCI_EXP_LNKCAP_SDERC	0x00080000 /* Surprise Down Error Reporting Capable */
1628 serge 439
#define  PCI_EXP_LNKCAP_DLLLARC	0x00100000 /* Data Link Layer Link Active Reporting Capable */
440
#define  PCI_EXP_LNKCAP_LBNC	0x00200000 /* Link Bandwidth Notification Capability */
441
#define  PCI_EXP_LNKCAP_PN	0xff000000 /* Port Number */
442
#define PCI_EXP_LNKCTL		16	/* Link Control */
443
#define  PCI_EXP_LNKCTL_ASPMC	0x0003	/* ASPM Control */
444
#define  PCI_EXP_LNKCTL_RCB	0x0008	/* Read Completion Boundary */
445
#define  PCI_EXP_LNKCTL_LD	0x0010	/* Link Disable */
446
#define  PCI_EXP_LNKCTL_RL	0x0020	/* Retrain Link */
447
#define  PCI_EXP_LNKCTL_CCC	0x0040	/* Common Clock Configuration */
448
#define  PCI_EXP_LNKCTL_ES	0x0080	/* Extended Synch */
449
#define  PCI_EXP_LNKCTL_CLKREQ_EN 0x100	/* Enable clkreq */
450
#define  PCI_EXP_LNKCTL_HAWD	0x0200	/* Hardware Autonomous Width Disable */
451
#define  PCI_EXP_LNKCTL_LBMIE	0x0400	/* Link Bandwidth Management Interrupt Enable */
452
#define  PCI_EXP_LNKCTL_LABIE	0x0800	/* Lnk Autonomous Bandwidth Interrupt Enable */
453
#define PCI_EXP_LNKSTA		18	/* Link Status */
454
#define  PCI_EXP_LNKSTA_CLS	0x000f	/* Current Link Speed */
455
#define  PCI_EXP_LNKSTA_CLS_2_5GB 0x01	/* Current Link Speed 2.5GT/s */
456
#define  PCI_EXP_LNKSTA_CLS_5_0GB 0x02	/* Current Link Speed 5.0GT/s */
457
#define  PCI_EXP_LNKSTA_NLW	0x03f0	/* Nogotiated Link Width */
458
#define  PCI_EXP_LNKSTA_NLW_SHIFT 4	/* start of NLW mask in link status */
459
#define  PCI_EXP_LNKSTA_LT	0x0800	/* Link Training */
460
#define  PCI_EXP_LNKSTA_SLC	0x1000	/* Slot Clock Configuration */
461
#define  PCI_EXP_LNKSTA_DLLLA	0x2000	/* Data Link Layer Link Active */
462
#define  PCI_EXP_LNKSTA_LBMS	0x4000	/* Link Bandwidth Management Status */
463
#define  PCI_EXP_LNKSTA_LABS	0x8000	/* Link Autonomous Bandwidth Status */
464
#define PCI_EXP_SLTCAP		20	/* Slot Capabilities */
465
#define  PCI_EXP_SLTCAP_ABP	0x00000001 /* Attention Button Present */
466
#define  PCI_EXP_SLTCAP_PCP	0x00000002 /* Power Controller Present */
467
#define  PCI_EXP_SLTCAP_MRLSP	0x00000004 /* MRL Sensor Present */
468
#define  PCI_EXP_SLTCAP_AIP	0x00000008 /* Attention Indicator Present */
469
#define  PCI_EXP_SLTCAP_PIP	0x00000010 /* Power Indicator Present */
470
#define  PCI_EXP_SLTCAP_HPS	0x00000020 /* Hot-Plug Surprise */
471
#define  PCI_EXP_SLTCAP_HPC	0x00000040 /* Hot-Plug Capable */
472
#define  PCI_EXP_SLTCAP_SPLV	0x00007f80 /* Slot Power Limit Value */
473
#define  PCI_EXP_SLTCAP_SPLS	0x00018000 /* Slot Power Limit Scale */
474
#define  PCI_EXP_SLTCAP_EIP	0x00020000 /* Electromechanical Interlock Present */
475
#define  PCI_EXP_SLTCAP_NCCS	0x00040000 /* No Command Completed Support */
476
#define  PCI_EXP_SLTCAP_PSN	0xfff80000 /* Physical Slot Number */
477
#define PCI_EXP_SLTCTL		24	/* Slot Control */
478
#define  PCI_EXP_SLTCTL_ABPE	0x0001	/* Attention Button Pressed Enable */
479
#define  PCI_EXP_SLTCTL_PFDE	0x0002	/* Power Fault Detected Enable */
480
#define  PCI_EXP_SLTCTL_MRLSCE	0x0004	/* MRL Sensor Changed Enable */
481
#define  PCI_EXP_SLTCTL_PDCE	0x0008	/* Presence Detect Changed Enable */
482
#define  PCI_EXP_SLTCTL_CCIE	0x0010	/* Command Completed Interrupt Enable */
483
#define  PCI_EXP_SLTCTL_HPIE	0x0020	/* Hot-Plug Interrupt Enable */
484
#define  PCI_EXP_SLTCTL_AIC	0x00c0	/* Attention Indicator Control */
485
#define  PCI_EXP_SLTCTL_PIC	0x0300	/* Power Indicator Control */
486
#define  PCI_EXP_SLTCTL_PCC	0x0400	/* Power Controller Control */
487
#define  PCI_EXP_SLTCTL_EIC	0x0800	/* Electromechanical Interlock Control */
488
#define  PCI_EXP_SLTCTL_DLLSCE	0x1000	/* Data Link Layer State Changed Enable */
489
#define PCI_EXP_SLTSTA		26	/* Slot Status */
490
#define  PCI_EXP_SLTSTA_ABP	0x0001	/* Attention Button Pressed */
491
#define  PCI_EXP_SLTSTA_PFD	0x0002	/* Power Fault Detected */
492
#define  PCI_EXP_SLTSTA_MRLSC	0x0004	/* MRL Sensor Changed */
493
#define  PCI_EXP_SLTSTA_PDC	0x0008	/* Presence Detect Changed */
494
#define  PCI_EXP_SLTSTA_CC	0x0010	/* Command Completed */
495
#define  PCI_EXP_SLTSTA_MRLSS	0x0020	/* MRL Sensor State */
496
#define  PCI_EXP_SLTSTA_PDS	0x0040	/* Presence Detect State */
497
#define  PCI_EXP_SLTSTA_EIS	0x0080	/* Electromechanical Interlock Status */
498
#define  PCI_EXP_SLTSTA_DLLSC	0x0100	/* Data Link Layer State Changed */
499
#define PCI_EXP_RTCTL		28	/* Root Control */
500
#define  PCI_EXP_RTCTL_SECEE	0x01	/* System Error on Correctable Error */
501
#define  PCI_EXP_RTCTL_SENFEE	0x02	/* System Error on Non-Fatal Error */
502
#define  PCI_EXP_RTCTL_SEFEE	0x04	/* System Error on Fatal Error */
503
#define  PCI_EXP_RTCTL_PMEIE	0x08	/* PME Interrupt Enable */
504
#define  PCI_EXP_RTCTL_CRSSVE	0x10	/* CRS Software Visibility Enable */
505
#define PCI_EXP_RTCAP		30	/* Root Capabilities */
506
#define PCI_EXP_RTSTA		32	/* Root Status */
1970 serge 507
#define PCI_EXP_RTSTA_PME	0x10000 /* PME status */
508
#define PCI_EXP_RTSTA_PENDING	0x20000 /* PME pending */
1628 serge 509
#define PCI_EXP_DEVCAP2		36	/* Device Capabilities 2 */
510
#define  PCI_EXP_DEVCAP2_ARI	0x20	/* Alternative Routing-ID */
1970 serge 511
#define  PCI_EXP_DEVCAP2_LTR	0x800	/* Latency tolerance reporting */
512
#define  PCI_EXP_OBFF_MASK	0xc0000 /* OBFF support mechanism */
513
#define  PCI_EXP_OBFF_MSG	0x40000 /* New message signaling */
514
#define  PCI_EXP_OBFF_WAKE	0x80000 /* Re-use WAKE# for OBFF */
1628 serge 515
#define PCI_EXP_DEVCTL2		40	/* Device Control 2 */
516
#define  PCI_EXP_DEVCTL2_ARI	0x20	/* Alternative Routing-ID */
1970 serge 517
#define  PCI_EXP_IDO_REQ_EN	0x100	/* ID-based ordering request enable */
518
#define  PCI_EXP_IDO_CMP_EN	0x200	/* ID-based ordering completion enable */
519
#define  PCI_EXP_LTR_EN		0x400	/* Latency tolerance reporting */
520
#define  PCI_EXP_OBFF_MSGA_EN	0x2000	/* OBFF enable with Message type A */
521
#define  PCI_EXP_OBFF_MSGB_EN	0x4000	/* OBFF enable with Message type B */
522
#define  PCI_EXP_OBFF_WAKE_EN	0x6000	/* OBFF using WAKE# signaling */
1628 serge 523
#define PCI_EXP_LNKCTL2		48	/* Link Control 2 */
524
#define PCI_EXP_SLTCTL2		56	/* Slot Control 2 */
525
 
526
/* Extended Capabilities (PCI-X 2.0 and Express) */
527
#define PCI_EXT_CAP_ID(header)		(header & 0x0000ffff)
528
#define PCI_EXT_CAP_VER(header)		((header >> 16) & 0xf)
529
#define PCI_EXT_CAP_NEXT(header)	((header >> 20) & 0xffc)
530
 
531
#define PCI_EXT_CAP_ID_ERR	1
532
#define PCI_EXT_CAP_ID_VC	2
533
#define PCI_EXT_CAP_ID_DSN	3
534
#define PCI_EXT_CAP_ID_PWR	4
535
#define PCI_EXT_CAP_ID_VNDR	11
536
#define PCI_EXT_CAP_ID_ACS	13
537
#define PCI_EXT_CAP_ID_ARI	14
538
#define PCI_EXT_CAP_ID_ATS	15
539
#define PCI_EXT_CAP_ID_SRIOV	16
1970 serge 540
#define PCI_EXT_CAP_ID_LTR	24
1628 serge 541
 
542
/* Advanced Error Reporting */
543
#define PCI_ERR_UNCOR_STATUS	4	/* Uncorrectable Error Status */
544
#define  PCI_ERR_UNC_TRAIN	0x00000001	/* Training */
545
#define  PCI_ERR_UNC_DLP	0x00000010	/* Data Link Protocol */
546
#define  PCI_ERR_UNC_POISON_TLP	0x00001000	/* Poisoned TLP */
547
#define  PCI_ERR_UNC_FCP	0x00002000	/* Flow Control Protocol */
548
#define  PCI_ERR_UNC_COMP_TIME	0x00004000	/* Completion Timeout */
549
#define  PCI_ERR_UNC_COMP_ABORT	0x00008000	/* Completer Abort */
550
#define  PCI_ERR_UNC_UNX_COMP	0x00010000	/* Unexpected Completion */
551
#define  PCI_ERR_UNC_RX_OVER	0x00020000	/* Receiver Overflow */
552
#define  PCI_ERR_UNC_MALF_TLP	0x00040000	/* Malformed TLP */
553
#define  PCI_ERR_UNC_ECRC	0x00080000	/* ECRC Error Status */
554
#define  PCI_ERR_UNC_UNSUP	0x00100000	/* Unsupported Request */
555
#define PCI_ERR_UNCOR_MASK	8	/* Uncorrectable Error Mask */
556
	/* Same bits as above */
557
#define PCI_ERR_UNCOR_SEVER	12	/* Uncorrectable Error Severity */
558
	/* Same bits as above */
559
#define PCI_ERR_COR_STATUS	16	/* Correctable Error Status */
560
#define  PCI_ERR_COR_RCVR	0x00000001	/* Receiver Error Status */
561
#define  PCI_ERR_COR_BAD_TLP	0x00000040	/* Bad TLP Status */
562
#define  PCI_ERR_COR_BAD_DLLP	0x00000080	/* Bad DLLP Status */
563
#define  PCI_ERR_COR_REP_ROLL	0x00000100	/* REPLAY_NUM Rollover */
564
#define  PCI_ERR_COR_REP_TIMER	0x00001000	/* Replay Timer Timeout */
565
#define PCI_ERR_COR_MASK	20	/* Correctable Error Mask */
566
	/* Same bits as above */
567
#define PCI_ERR_CAP		24	/* Advanced Error Capabilities */
568
#define  PCI_ERR_CAP_FEP(x)	((x) & 31)	/* First Error Pointer */
569
#define  PCI_ERR_CAP_ECRC_GENC	0x00000020	/* ECRC Generation Capable */
570
#define  PCI_ERR_CAP_ECRC_GENE	0x00000040	/* ECRC Generation Enable */
571
#define  PCI_ERR_CAP_ECRC_CHKC	0x00000080	/* ECRC Check Capable */
572
#define  PCI_ERR_CAP_ECRC_CHKE	0x00000100	/* ECRC Check Enable */
573
#define PCI_ERR_HEADER_LOG	28	/* Header Log Register (16 bytes) */
574
#define PCI_ERR_ROOT_COMMAND	44	/* Root Error Command */
575
/* Correctable Err Reporting Enable */
576
#define PCI_ERR_ROOT_CMD_COR_EN		0x00000001
577
/* Non-fatal Err Reporting Enable */
578
#define PCI_ERR_ROOT_CMD_NONFATAL_EN	0x00000002
579
/* Fatal Err Reporting Enable */
580
#define PCI_ERR_ROOT_CMD_FATAL_EN	0x00000004
581
#define PCI_ERR_ROOT_STATUS	48
582
#define PCI_ERR_ROOT_COR_RCV		0x00000001	/* ERR_COR Received */
583
/* Multi ERR_COR Received */
584
#define PCI_ERR_ROOT_MULTI_COR_RCV	0x00000002
585
/* ERR_FATAL/NONFATAL Recevied */
586
#define PCI_ERR_ROOT_UNCOR_RCV		0x00000004
587
/* Multi ERR_FATAL/NONFATAL Recevied */
588
#define PCI_ERR_ROOT_MULTI_UNCOR_RCV	0x00000008
589
#define PCI_ERR_ROOT_FIRST_FATAL	0x00000010	/* First Fatal */
590
#define PCI_ERR_ROOT_NONFATAL_RCV	0x00000020	/* Non-Fatal Received */
591
#define PCI_ERR_ROOT_FATAL_RCV		0x00000040	/* Fatal Received */
592
#define PCI_ERR_ROOT_ERR_SRC	52	/* Error Source Identification */
593
 
594
/* Virtual Channel */
595
#define PCI_VC_PORT_REG1	4
596
#define PCI_VC_PORT_REG2	8
597
#define PCI_VC_PORT_CTRL	12
598
#define PCI_VC_PORT_STATUS	14
599
#define PCI_VC_RES_CAP		16
600
#define PCI_VC_RES_CTRL		20
601
#define PCI_VC_RES_STATUS	26
602
 
603
/* Power Budgeting */
604
#define PCI_PWR_DSR		4	/* Data Select Register */
605
#define PCI_PWR_DATA		8	/* Data Register */
606
#define  PCI_PWR_DATA_BASE(x)	((x) & 0xff)	    /* Base Power */
607
#define  PCI_PWR_DATA_SCALE(x)	(((x) >> 8) & 3)    /* Data Scale */
608
#define  PCI_PWR_DATA_PM_SUB(x)	(((x) >> 10) & 7)   /* PM Sub State */
609
#define  PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */
610
#define  PCI_PWR_DATA_TYPE(x)	(((x) >> 15) & 7)   /* Type */
611
#define  PCI_PWR_DATA_RAIL(x)	(((x) >> 18) & 7)   /* Power Rail */
612
#define PCI_PWR_CAP		12	/* Capability */
613
#define  PCI_PWR_CAP_BUDGET(x)	((x) & 1)	/* Included in system budget */
614
 
615
/*
616
 * Hypertransport sub capability types
617
 *
618
 * Unfortunately there are both 3 bit and 5 bit capability types defined
619
 * in the HT spec, catering for that is a little messy. You probably don't
620
 * want to use these directly, just use pci_find_ht_capability() and it
621
 * will do the right thing for you.
622
 */
623
#define HT_3BIT_CAP_MASK	0xE0
624
#define HT_CAPTYPE_SLAVE	0x00	/* Slave/Primary link configuration */
625
#define HT_CAPTYPE_HOST		0x20	/* Host/Secondary link configuration */
626
 
627
#define HT_5BIT_CAP_MASK	0xF8
628
#define HT_CAPTYPE_IRQ		0x80	/* IRQ Configuration */
629
#define HT_CAPTYPE_REMAPPING_40	0xA0	/* 40 bit address remapping */
630
#define HT_CAPTYPE_REMAPPING_64 0xA2	/* 64 bit address remapping */
631
#define HT_CAPTYPE_UNITID_CLUMP	0x90	/* Unit ID clumping */
632
#define HT_CAPTYPE_EXTCONF	0x98	/* Extended Configuration Space Access */
633
#define HT_CAPTYPE_MSI_MAPPING	0xA8	/* MSI Mapping Capability */
634
#define  HT_MSI_FLAGS		0x02		/* Offset to flags */
635
#define  HT_MSI_FLAGS_ENABLE	0x1		/* Mapping enable */
636
#define  HT_MSI_FLAGS_FIXED	0x2		/* Fixed mapping only */
637
#define  HT_MSI_FIXED_ADDR	0x00000000FEE00000ULL	/* Fixed addr */
638
#define  HT_MSI_ADDR_LO		0x04		/* Offset to low addr bits */
639
#define  HT_MSI_ADDR_LO_MASK	0xFFF00000	/* Low address bit mask */
640
#define  HT_MSI_ADDR_HI		0x08		/* Offset to high addr bits */
641
#define HT_CAPTYPE_DIRECT_ROUTE	0xB0	/* Direct routing configuration */
642
#define HT_CAPTYPE_VCSET	0xB8	/* Virtual Channel configuration */
643
#define HT_CAPTYPE_ERROR_RETRY	0xC0	/* Retry on error configuration */
644
#define HT_CAPTYPE_GEN3		0xD0	/* Generation 3 hypertransport configuration */
645
#define HT_CAPTYPE_PM		0xE0	/* Hypertransport powermanagement configuration */
646
 
647
/* Alternative Routing-ID Interpretation */
648
#define PCI_ARI_CAP		0x04	/* ARI Capability Register */
649
#define  PCI_ARI_CAP_MFVC	0x0001	/* MFVC Function Groups Capability */
650
#define  PCI_ARI_CAP_ACS	0x0002	/* ACS Function Groups Capability */
651
#define  PCI_ARI_CAP_NFN(x)	(((x) >> 8) & 0xff) /* Next Function Number */
652
#define PCI_ARI_CTRL		0x06	/* ARI Control Register */
653
#define  PCI_ARI_CTRL_MFVC	0x0001	/* MFVC Function Groups Enable */
654
#define  PCI_ARI_CTRL_ACS	0x0002	/* ACS Function Groups Enable */
655
#define  PCI_ARI_CTRL_FG(x)	(((x) >> 4) & 7) /* Function Group */
656
 
657
/* Address Translation Service */
658
#define PCI_ATS_CAP		0x04	/* ATS Capability Register */
659
#define  PCI_ATS_CAP_QDEP(x)	((x) & 0x1f)	/* Invalidate Queue Depth */
660
#define  PCI_ATS_MAX_QDEP	32	/* Max Invalidate Queue Depth */
661
#define PCI_ATS_CTRL		0x06	/* ATS Control Register */
662
#define  PCI_ATS_CTRL_ENABLE	0x8000	/* ATS Enable */
663
#define  PCI_ATS_CTRL_STU(x)	((x) & 0x1f)	/* Smallest Translation Unit */
664
#define  PCI_ATS_MIN_STU	12	/* shift of minimum STU block */
665
 
2967 Serge 666
/* Page Request Interface */
667
#define PCI_PRI_CAP		0x13    /* PRI capability ID */
668
#define PCI_PRI_CONTROL_OFF	0x04	/* Offset of control register */
669
#define PCI_PRI_STATUS_OFF	0x06	/* Offset of status register */
670
#define PCI_PRI_ENABLE		0x0001	/* Enable mask */
671
#define PCI_PRI_RESET		0x0002	/* Reset bit mask */
672
#define PCI_PRI_STATUS_RF	0x0001  /* Request Failure */
673
#define PCI_PRI_STATUS_UPRGI	0x0002  /* Unexpected PRG index */
674
#define PCI_PRI_STATUS_STOPPED	0x0100  /* PRI Stopped */
675
#define PCI_PRI_MAX_REQ_OFF	0x08	/* Cap offset for max reqs supported */
676
#define PCI_PRI_ALLOC_REQ_OFF	0x0c	/* Cap offset for max reqs allowed */
677
 
678
/* PASID capability */
679
#define PCI_PASID_CAP		0x1b    /* PASID capability ID */
680
#define PCI_PASID_CAP_OFF	0x04    /* PASID feature register */
681
#define PCI_PASID_CONTROL_OFF   0x06    /* PASID control register */
682
#define PCI_PASID_ENABLE	0x01	/* Enable/Supported bit */
683
#define PCI_PASID_EXEC		0x02	/* Exec permissions Enable/Supported */
684
#define PCI_PASID_PRIV		0x04	/* Priviledge Mode Enable/Support */
685
 
1628 serge 686
/* Single Root I/O Virtualization */
687
#define PCI_SRIOV_CAP		0x04	/* SR-IOV Capabilities */
688
#define  PCI_SRIOV_CAP_VFM	0x01	/* VF Migration Capable */
689
#define  PCI_SRIOV_CAP_INTR(x)	((x) >> 21) /* Interrupt Message Number */
690
#define PCI_SRIOV_CTRL		0x08	/* SR-IOV Control */
691
#define  PCI_SRIOV_CTRL_VFE	0x01	/* VF Enable */
692
#define  PCI_SRIOV_CTRL_VFM	0x02	/* VF Migration Enable */
693
#define  PCI_SRIOV_CTRL_INTR	0x04	/* VF Migration Interrupt Enable */
694
#define  PCI_SRIOV_CTRL_MSE	0x08	/* VF Memory Space Enable */
695
#define  PCI_SRIOV_CTRL_ARI	0x10	/* ARI Capable Hierarchy */
696
#define PCI_SRIOV_STATUS	0x0a	/* SR-IOV Status */
697
#define  PCI_SRIOV_STATUS_VFM	0x01	/* VF Migration Status */
698
#define PCI_SRIOV_INITIAL_VF	0x0c	/* Initial VFs */
699
#define PCI_SRIOV_TOTAL_VF	0x0e	/* Total VFs */
700
#define PCI_SRIOV_NUM_VF	0x10	/* Number of VFs */
701
#define PCI_SRIOV_FUNC_LINK	0x12	/* Function Dependency Link */
702
#define PCI_SRIOV_VF_OFFSET	0x14	/* First VF Offset */
703
#define PCI_SRIOV_VF_STRIDE	0x16	/* Following VF Stride */
704
#define PCI_SRIOV_VF_DID	0x1a	/* VF Device ID */
705
#define PCI_SRIOV_SUP_PGSIZE	0x1c	/* Supported Page Sizes */
706
#define PCI_SRIOV_SYS_PGSIZE	0x20	/* System Page Size */
707
#define PCI_SRIOV_BAR		0x24	/* VF BAR0 */
708
#define  PCI_SRIOV_NUM_BARS	6	/* Number of VF BARs */
709
#define PCI_SRIOV_VFM		0x3c	/* VF Migration State Array Offset*/
710
#define  PCI_SRIOV_VFM_BIR(x)	((x) & 7)	/* State BIR */
711
#define  PCI_SRIOV_VFM_OFFSET(x) ((x) & ~7)	/* State Offset */
712
#define  PCI_SRIOV_VFM_UA	0x0	/* Inactive.Unavailable */
713
#define  PCI_SRIOV_VFM_MI	0x1	/* Dormant.MigrateIn */
714
#define  PCI_SRIOV_VFM_MO	0x2	/* Active.MigrateOut */
715
#define  PCI_SRIOV_VFM_AV	0x3	/* Active.Available */
716
 
1970 serge 717
#define PCI_LTR_MAX_SNOOP_LAT	0x4
718
#define PCI_LTR_MAX_NOSNOOP_LAT	0x6
719
#define  PCI_LTR_VALUE_MASK	0x000003ff
720
#define  PCI_LTR_SCALE_MASK	0x00001c00
721
#define  PCI_LTR_SCALE_SHIFT	10
722
 
1628 serge 723
/* Access Control Service */
724
#define PCI_ACS_CAP		0x04	/* ACS Capability Register */
725
#define  PCI_ACS_SV		0x01	/* Source Validation */
726
#define  PCI_ACS_TB		0x02	/* Translation Blocking */
727
#define  PCI_ACS_RR		0x04	/* P2P Request Redirect */
728
#define  PCI_ACS_CR		0x08	/* P2P Completion Redirect */
729
#define  PCI_ACS_UF		0x10	/* Upstream Forwarding */
730
#define  PCI_ACS_EC		0x20	/* P2P Egress Control */
731
#define  PCI_ACS_DT		0x40	/* Direct Translated P2P */
732
#define PCI_ACS_CTRL		0x06	/* ACS Control Register */
733
#define PCI_ACS_EGRESS_CTL_V	0x08	/* ACS Egress Control Vector */
734
 
735
#endif /* LINUX_PCI_REGS_H */