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bridge.h
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1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License. See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * bridge.h - bridge chip header file, derived from IRIX <sys/PCI/bridge.h>,
7  * revision 1.76.
8  *
9  * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
10  * Copyright (C) 1999 Ralf Baechle ([email protected])
11  */
12 #ifndef _ASM_PCI_BRIDGE_H
13 #define _ASM_PCI_BRIDGE_H
14 
15 #include <linux/types.h>
16 #include <linux/pci.h>
17 #include <asm/xtalk/xwidget.h> /* generic widget header */
18 #include <asm/sn/types.h>
19 
20 /* I/O page size */
21 
22 #define IOPFNSHIFT 12 /* 4K per mapped page */
23 
24 #define IOPGSIZE (1 << IOPFNSHIFT)
25 #define IOPG(x) ((x) >> IOPFNSHIFT)
26 #define IOPGOFF(x) ((x) & (IOPGSIZE-1))
27 
28 /* Bridge RAM sizes */
29 
30 #define BRIDGE_ATE_RAM_SIZE 0x00000400 /* 1kB ATE RAM */
31 
32 #define BRIDGE_CONFIG_BASE 0x20000
33 #define BRIDGE_CONFIG1_BASE 0x28000
34 #define BRIDGE_CONFIG_END 0x30000
35 #define BRIDGE_CONFIG_SLOT_SIZE 0x1000
36 
37 #define BRIDGE_SSRAM_512K 0x00080000 /* 512kB */
38 #define BRIDGE_SSRAM_128K 0x00020000 /* 128kB */
39 #define BRIDGE_SSRAM_64K 0x00010000 /* 64kB */
40 #define BRIDGE_SSRAM_0K 0x00000000 /* 0kB */
41 
42 /* ========================================================================
43  * Bridge address map
44  */
45 
46 #ifndef __ASSEMBLY__
47 
48 /*
49  * All accesses to bridge hardware registers must be done
50  * using 32-bit loads and stores.
51  */
52 typedef u32 bridgereg_t;
53 
54 typedef u64 bridge_ate_t;
55 
56 /* pointers to bridge ATEs
57  * are always "pointer to volatile"
58  */
59 typedef volatile bridge_ate_t *bridge_ate_p;
60 
61 /*
62  * It is generally preferred that hardware registers on the bridge
63  * are located from C code via this structure.
64  *
65  * Generated from Bridge spec dated 04oct95
66  */
67 
68 typedef volatile struct bridge_s {
69  /* Local Registers 0x000000-0x00FFFF */
70 
71  /* standard widget configuration 0x000000-0x000057 */
72  widget_cfg_t b_widget; /* 0x000000 */
73 
74  /* helper fieldnames for accessing bridge widget */
75 
76 #define b_wid_id b_widget.w_id
77 #define b_wid_stat b_widget.w_status
78 #define b_wid_err_upper b_widget.w_err_upper_addr
79 #define b_wid_err_lower b_widget.w_err_lower_addr
80 #define b_wid_control b_widget.w_control
81 #define b_wid_req_timeout b_widget.w_req_timeout
82 #define b_wid_int_upper b_widget.w_intdest_upper_addr
83 #define b_wid_int_lower b_widget.w_intdest_lower_addr
84 #define b_wid_err_cmdword b_widget.w_err_cmd_word
85 #define b_wid_llp b_widget.w_llp_cfg
86 #define b_wid_tflush b_widget.w_tflush
87 
88  /* bridge-specific widget configuration 0x000058-0x00007F */
89  bridgereg_t _pad_000058;
90  bridgereg_t b_wid_aux_err; /* 0x00005C */
91  bridgereg_t _pad_000060;
92  bridgereg_t b_wid_resp_upper; /* 0x000064 */
93  bridgereg_t _pad_000068;
94  bridgereg_t b_wid_resp_lower; /* 0x00006C */
95  bridgereg_t _pad_000070;
96  bridgereg_t b_wid_tst_pin_ctrl; /* 0x000074 */
97  bridgereg_t _pad_000078[2];
98 
99  /* PMU & Map 0x000080-0x00008F */
100  bridgereg_t _pad_000080;
101  bridgereg_t b_dir_map; /* 0x000084 */
102  bridgereg_t _pad_000088[2];
103 
104  /* SSRAM 0x000090-0x00009F */
105  bridgereg_t _pad_000090;
106  bridgereg_t b_ram_perr; /* 0x000094 */
107  bridgereg_t _pad_000098[2];
108 
109  /* Arbitration 0x0000A0-0x0000AF */
110  bridgereg_t _pad_0000A0;
111  bridgereg_t b_arb; /* 0x0000A4 */
112  bridgereg_t _pad_0000A8[2];
113 
114  /* Number In A Can 0x0000B0-0x0000BF */
115  bridgereg_t _pad_0000B0;
116  bridgereg_t b_nic; /* 0x0000B4 */
117  bridgereg_t _pad_0000B8[2];
118 
119  /* PCI/GIO 0x0000C0-0x0000FF */
120  bridgereg_t _pad_0000C0;
121  bridgereg_t b_bus_timeout; /* 0x0000C4 */
122 #define b_pci_bus_timeout b_bus_timeout
123 
124  bridgereg_t _pad_0000C8;
125  bridgereg_t b_pci_cfg; /* 0x0000CC */
126  bridgereg_t _pad_0000D0;
127  bridgereg_t b_pci_err_upper; /* 0x0000D4 */
128  bridgereg_t _pad_0000D8;
129  bridgereg_t b_pci_err_lower; /* 0x0000DC */
130  bridgereg_t _pad_0000E0[8];
131 #define b_gio_err_lower b_pci_err_lower
132 #define b_gio_err_upper b_pci_err_upper
133 
134  /* Interrupt 0x000100-0x0001FF */
135  bridgereg_t _pad_000100;
136  bridgereg_t b_int_status; /* 0x000104 */
137  bridgereg_t _pad_000108;
138  bridgereg_t b_int_enable; /* 0x00010C */
139  bridgereg_t _pad_000110;
140  bridgereg_t b_int_rst_stat; /* 0x000114 */
141  bridgereg_t _pad_000118;
142  bridgereg_t b_int_mode; /* 0x00011C */
143  bridgereg_t _pad_000120;
144  bridgereg_t b_int_device; /* 0x000124 */
145  bridgereg_t _pad_000128;
146  bridgereg_t b_int_host_err; /* 0x00012C */
147 
148  struct {
149  bridgereg_t __pad; /* 0x0001{30,,,68} */
150  bridgereg_t addr; /* 0x0001{34,,,6C} */
151  } b_int_addr[8]; /* 0x000130 */
152 
153  bridgereg_t _pad_000170[36];
154 
155  /* Device 0x000200-0x0003FF */
156  struct {
157  bridgereg_t __pad; /* 0x0002{00,,,38} */
158  bridgereg_t reg; /* 0x0002{04,,,3C} */
159  } b_device[8]; /* 0x000200 */
160 
161  struct {
162  bridgereg_t __pad; /* 0x0002{40,,,78} */
163  bridgereg_t reg; /* 0x0002{44,,,7C} */
164  } b_wr_req_buf[8]; /* 0x000240 */
165 
166  struct {
167  bridgereg_t __pad; /* 0x0002{80,,,88} */
168  bridgereg_t reg; /* 0x0002{84,,,8C} */
169  } b_rrb_map[2]; /* 0x000280 */
170 #define b_even_resp b_rrb_map[0].reg /* 0x000284 */
171 #define b_odd_resp b_rrb_map[1].reg /* 0x00028C */
172 
173  bridgereg_t _pad_000290;
174  bridgereg_t b_resp_status; /* 0x000294 */
175  bridgereg_t _pad_000298;
176  bridgereg_t b_resp_clear; /* 0x00029C */
177 
178  bridgereg_t _pad_0002A0[24];
179 
180  char _pad_000300[0x10000 - 0x000300];
181 
182  /* Internal Address Translation Entry RAM 0x010000-0x0103FF */
183  union {
184  bridge_ate_t wr; /* write-only */
185  struct {
186  bridgereg_t _p_pad;
187  bridgereg_t rd; /* read-only */
188  } hi;
189  } b_int_ate_ram[128];
190 
191  char _pad_010400[0x11000 - 0x010400];
192 
193  /* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */
194  struct {
195  bridgereg_t _p_pad;
196  bridgereg_t rd; /* read-only */
197  } b_int_ate_ram_lo[128];
198 
199  char _pad_011400[0x20000 - 0x011400];
200 
201  /* PCI Device Configuration Spaces 0x020000-0x027FFF */
202  union { /* make all access sizes available. */
203  u8 c[0x1000 / 1];
204  u16 s[0x1000 / 2];
205  u32 l[0x1000 / 4];
206  u64 d[0x1000 / 8];
207  union {
208  u8 c[0x100 / 1];
209  u16 s[0x100 / 2];
210  u32 l[0x100 / 4];
211  u64 d[0x100 / 8];
212  } f[8];
213  } b_type0_cfg_dev[8]; /* 0x020000 */
214 
215  /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
216  union { /* make all access sizes available. */
217  u8 c[0x1000 / 1];
218  u16 s[0x1000 / 2];
219  u32 l[0x1000 / 4];
220  u64 d[0x1000 / 8];
221  } b_type1_cfg; /* 0x028000-0x029000 */
222 
223  char _pad_029000[0x007000]; /* 0x029000-0x030000 */
224 
225  /* PCI Interrupt Acknowledge Cycle 0x030000 */
226  union {
227  u8 c[8 / 1];
228  u16 s[8 / 2];
229  u32 l[8 / 4];
230  u64 d[8 / 8];
231  } b_pci_iack; /* 0x030000 */
232 
233  u8 _pad_030007[0x04fff8]; /* 0x030008-0x07FFFF */
234 
235  /* External Address Translation Entry RAM 0x080000-0x0FFFFF */
236  bridge_ate_t b_ext_ate_ram[0x10000];
237 
238  /* Reserved 0x100000-0x1FFFFF */
239  char _pad_100000[0x200000-0x100000];
240 
241  /* PCI/GIO Device Spaces 0x200000-0xBFFFFF */
242  union { /* make all access sizes available. */
243  u8 c[0x100000 / 1];
244  u16 s[0x100000 / 2];
245  u32 l[0x100000 / 4];
246  u64 d[0x100000 / 8];
247  } b_devio_raw[10]; /* 0x200000 */
248 
249  /* b_devio macro is a bit strange; it reflects the
250  * fact that the Bridge ASIC provides 2M for the
251  * first two DevIO windows and 1M for the other six.
252  */
253 #define b_devio(n) b_devio_raw[((n)<2)?(n*2):(n+2)]
254 
255  /* External Flash Proms 1,0 0xC00000-0xFFFFFF */
256  union { /* make all access sizes available. */
257  u8 c[0x400000 / 1]; /* read-only */
258  u16 s[0x400000 / 2]; /* read-write */
259  u32 l[0x400000 / 4]; /* read-only */
260  u64 d[0x400000 / 8]; /* read-only */
261  } b_external_flash; /* 0xC00000 */
262 } bridge_t;
263 
264 /*
265  * Field formats for Error Command Word and Auxiliary Error Command Word
266  * of bridge.
267  */
268 typedef struct bridge_err_cmdword_s {
269  union {
270  u32 cmd_word;
271  struct {
272  u32 didn:4, /* Destination ID */
273  sidn:4, /* Source ID */
274  pactyp:4, /* Packet type */
275  tnum:5, /* Trans Number */
276  coh:1, /* Coh Transacti */
277  ds:2, /* Data size */
278  gbr:1, /* GBR enable */
279  vbpm:1, /* VBPM message */
280  error:1, /* Error occurred */
281  barr:1, /* Barrier op */
282  rsvd:8;
283  } berr_st;
284  } berr_un;
285 } bridge_err_cmdword_t;
286 
287 #define berr_field berr_un.berr_st
288 #endif /* !__ASSEMBLY__ */
289 
290 /*
291  * The values of these macros can and should be crosschecked
292  * regularly against the offsets of the like-named fields
293  * within the "bridge_t" structure above.
294  */
295 
296 /* Byte offset macros for Bridge internal registers */
297 
298 #define BRIDGE_WID_ID WIDGET_ID
299 #define BRIDGE_WID_STAT WIDGET_STATUS
300 #define BRIDGE_WID_ERR_UPPER WIDGET_ERR_UPPER_ADDR
301 #define BRIDGE_WID_ERR_LOWER WIDGET_ERR_LOWER_ADDR
302 #define BRIDGE_WID_CONTROL WIDGET_CONTROL
303 #define BRIDGE_WID_REQ_TIMEOUT WIDGET_REQ_TIMEOUT
304 #define BRIDGE_WID_INT_UPPER WIDGET_INTDEST_UPPER_ADDR
305 #define BRIDGE_WID_INT_LOWER WIDGET_INTDEST_LOWER_ADDR
306 #define BRIDGE_WID_ERR_CMDWORD WIDGET_ERR_CMD_WORD
307 #define BRIDGE_WID_LLP WIDGET_LLP_CFG
308 #define BRIDGE_WID_TFLUSH WIDGET_TFLUSH
309 
310 #define BRIDGE_WID_AUX_ERR 0x00005C /* Aux Error Command Word */
311 #define BRIDGE_WID_RESP_UPPER 0x000064 /* Response Buf Upper Addr */
312 #define BRIDGE_WID_RESP_LOWER 0x00006C /* Response Buf Lower Addr */
313 #define BRIDGE_WID_TST_PIN_CTRL 0x000074 /* Test pin control */
314 
315 #define BRIDGE_DIR_MAP 0x000084 /* Direct Map reg */
316 
317 #define BRIDGE_RAM_PERR 0x000094 /* SSRAM Parity Error */
318 
319 #define BRIDGE_ARB 0x0000A4 /* Arbitration Priority reg */
320 
321 #define BRIDGE_NIC 0x0000B4 /* Number In A Can */
322 
323 #define BRIDGE_BUS_TIMEOUT 0x0000C4 /* Bus Timeout Register */
324 #define BRIDGE_PCI_BUS_TIMEOUT BRIDGE_BUS_TIMEOUT
325 #define BRIDGE_PCI_CFG 0x0000CC /* PCI Type 1 Config reg */
326 #define BRIDGE_PCI_ERR_UPPER 0x0000D4 /* PCI error Upper Addr */
327 #define BRIDGE_PCI_ERR_LOWER 0x0000DC /* PCI error Lower Addr */
328 
329 #define BRIDGE_INT_STATUS 0x000104 /* Interrupt Status */
330 #define BRIDGE_INT_ENABLE 0x00010C /* Interrupt Enables */
331 #define BRIDGE_INT_RST_STAT 0x000114 /* Reset Intr Status */
332 #define BRIDGE_INT_MODE 0x00011C /* Interrupt Mode */
333 #define BRIDGE_INT_DEVICE 0x000124 /* Interrupt Device */
334 #define BRIDGE_INT_HOST_ERR 0x00012C /* Host Error Field */
335 
336 #define BRIDGE_INT_ADDR0 0x000134 /* Host Address Reg */
337 #define BRIDGE_INT_ADDR_OFF 0x000008 /* Host Addr offset (1..7) */
338 #define BRIDGE_INT_ADDR(x) (BRIDGE_INT_ADDR0+(x)*BRIDGE_INT_ADDR_OFF)
339 
340 #define BRIDGE_DEVICE0 0x000204 /* Device 0 */
341 #define BRIDGE_DEVICE_OFF 0x000008 /* Device offset (1..7) */
342 #define BRIDGE_DEVICE(x) (BRIDGE_DEVICE0+(x)*BRIDGE_DEVICE_OFF)
343 
344 #define BRIDGE_WR_REQ_BUF0 0x000244 /* Write Request Buffer 0 */
345 #define BRIDGE_WR_REQ_BUF_OFF 0x000008 /* Buffer Offset (1..7) */
346 #define BRIDGE_WR_REQ_BUF(x) (BRIDGE_WR_REQ_BUF0+(x)*BRIDGE_WR_REQ_BUF_OFF)
347 
348 #define BRIDGE_EVEN_RESP 0x000284 /* Even Device Response Buf */
349 #define BRIDGE_ODD_RESP 0x00028C /* Odd Device Response Buf */
350 
351 #define BRIDGE_RESP_STATUS 0x000294 /* Read Response Status reg */
352 #define BRIDGE_RESP_CLEAR 0x00029C /* Read Response Clear reg */
353 
354 /* Byte offset macros for Bridge I/O space */
355 
356 #define BRIDGE_ATE_RAM 0x00010000 /* Internal Addr Xlat Ram */
357 
358 #define BRIDGE_TYPE0_CFG_DEV0 0x00020000 /* Type 0 Cfg, Device 0 */
359 #define BRIDGE_TYPE0_CFG_SLOT_OFF 0x00001000 /* Type 0 Cfg Slot Offset (1..7) */
360 #define BRIDGE_TYPE0_CFG_FUNC_OFF 0x00000100 /* Type 0 Cfg Func Offset (1..7) */
361 #define BRIDGE_TYPE0_CFG_DEV(s) (BRIDGE_TYPE0_CFG_DEV0+\
362  (s)*BRIDGE_TYPE0_CFG_SLOT_OFF)
363 #define BRIDGE_TYPE0_CFG_DEVF(s, f) (BRIDGE_TYPE0_CFG_DEV0+\
364  (s)*BRIDGE_TYPE0_CFG_SLOT_OFF+\
365  (f)*BRIDGE_TYPE0_CFG_FUNC_OFF)
366 
367 #define BRIDGE_TYPE1_CFG 0x00028000 /* Type 1 Cfg space */
368 
369 #define BRIDGE_PCI_IACK 0x00030000 /* PCI Interrupt Ack */
370 #define BRIDGE_EXT_SSRAM 0x00080000 /* Extern SSRAM (ATE) */
371 
372 /* Byte offset macros for Bridge device IO spaces */
373 
374 #define BRIDGE_DEV_CNT 8 /* Up to 8 devices per bridge */
375 #define BRIDGE_DEVIO0 0x00200000 /* Device IO 0 Addr */
376 #define BRIDGE_DEVIO1 0x00400000 /* Device IO 1 Addr */
377 #define BRIDGE_DEVIO2 0x00600000 /* Device IO 2 Addr */
378 #define BRIDGE_DEVIO_OFF 0x00100000 /* Device IO Offset (3..7) */
379 
380 #define BRIDGE_DEVIO_2MB 0x00200000 /* Device IO Offset (0..1) */
381 #define BRIDGE_DEVIO_1MB 0x00100000 /* Device IO Offset (2..7) */
382 
383 #define BRIDGE_DEVIO(x) ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB)
384 
385 #define BRIDGE_EXTERNAL_FLASH 0x00C00000 /* External Flash PROMS */
386 
387 /* ========================================================================
388  * Bridge register bit field definitions
389  */
390 
391 /* Widget part number of bridge */
392 #define BRIDGE_WIDGET_PART_NUM 0xc002
393 #define XBRIDGE_WIDGET_PART_NUM 0xd002
394 
395 /* Manufacturer of bridge */
396 #define BRIDGE_WIDGET_MFGR_NUM 0x036
397 #define XBRIDGE_WIDGET_MFGR_NUM 0x024
398 
399 /* Revision numbers for known Bridge revisions */
400 #define BRIDGE_REV_A 0x1
401 #define BRIDGE_REV_B 0x2
402 #define BRIDGE_REV_C 0x3
403 #define BRIDGE_REV_D 0x4
404 
405 /* Bridge widget status register bits definition */
406 
407 #define BRIDGE_STAT_LLP_REC_CNT (0xFFu << 24)
408 #define BRIDGE_STAT_LLP_TX_CNT (0xFF << 16)
409 #define BRIDGE_STAT_FLASH_SELECT (0x1 << 6)
410 #define BRIDGE_STAT_PCI_GIO_N (0x1 << 5)
411 #define BRIDGE_STAT_PENDING (0x1F << 0)
412 
413 /* Bridge widget control register bits definition */
414 #define BRIDGE_CTRL_FLASH_WR_EN (0x1ul << 31)
415 #define BRIDGE_CTRL_EN_CLK50 (0x1 << 30)
416 #define BRIDGE_CTRL_EN_CLK40 (0x1 << 29)
417 #define BRIDGE_CTRL_EN_CLK33 (0x1 << 28)
418 #define BRIDGE_CTRL_RST(n) ((n) << 24)
419 #define BRIDGE_CTRL_RST_MASK (BRIDGE_CTRL_RST(0xF))
420 #define BRIDGE_CTRL_RST_PIN(x) (BRIDGE_CTRL_RST(0x1 << (x)))
421 #define BRIDGE_CTRL_IO_SWAP (0x1 << 23)
422 #define BRIDGE_CTRL_MEM_SWAP (0x1 << 22)
423 #define BRIDGE_CTRL_PAGE_SIZE (0x1 << 21)
424 #define BRIDGE_CTRL_SS_PAR_BAD (0x1 << 20)
425 #define BRIDGE_CTRL_SS_PAR_EN (0x1 << 19)
426 #define BRIDGE_CTRL_SSRAM_SIZE(n) ((n) << 17)
427 #define BRIDGE_CTRL_SSRAM_SIZE_MASK (BRIDGE_CTRL_SSRAM_SIZE(0x3))
428 #define BRIDGE_CTRL_SSRAM_512K (BRIDGE_CTRL_SSRAM_SIZE(0x3))
429 #define BRIDGE_CTRL_SSRAM_128K (BRIDGE_CTRL_SSRAM_SIZE(0x2))
430 #define BRIDGE_CTRL_SSRAM_64K (BRIDGE_CTRL_SSRAM_SIZE(0x1))
431 #define BRIDGE_CTRL_SSRAM_1K (BRIDGE_CTRL_SSRAM_SIZE(0x0))
432 #define BRIDGE_CTRL_F_BAD_PKT (0x1 << 16)
433 #define BRIDGE_CTRL_LLP_XBAR_CRD(n) ((n) << 12)
434 #define BRIDGE_CTRL_LLP_XBAR_CRD_MASK (BRIDGE_CTRL_LLP_XBAR_CRD(0xf))
435 #define BRIDGE_CTRL_CLR_RLLP_CNT (0x1 << 11)
436 #define BRIDGE_CTRL_CLR_TLLP_CNT (0x1 << 10)
437 #define BRIDGE_CTRL_SYS_END (0x1 << 9)
438 #define BRIDGE_CTRL_MAX_TRANS(n) ((n) << 4)
439 #define BRIDGE_CTRL_MAX_TRANS_MASK (BRIDGE_CTRL_MAX_TRANS(0x1f))
440 #define BRIDGE_CTRL_WIDGET_ID(n) ((n) << 0)
441 #define BRIDGE_CTRL_WIDGET_ID_MASK (BRIDGE_CTRL_WIDGET_ID(0xf))
442 
443 /* Bridge Response buffer Error Upper Register bit fields definition */
444 #define BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT (20)
445 #define BRIDGE_RESP_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
446 #define BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT (16)
447 #define BRIDGE_RESP_ERRUPPR_BUFNUM_MASK (0xF << BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
448 #define BRIDGE_RESP_ERRRUPPR_BUFMASK (0xFFFF)
449 
450 #define BRIDGE_RESP_ERRUPPR_BUFNUM(x) \
451  (((x) & BRIDGE_RESP_ERRUPPR_BUFNUM_MASK) >> \
452  BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
453 
454 #define BRIDGE_RESP_ERRUPPR_DEVICE(x) \
455  (((x) & BRIDGE_RESP_ERRUPPR_DEVNUM_MASK) >> \
456  BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
457 
458 /* Bridge direct mapping register bits definition */
459 #define BRIDGE_DIRMAP_W_ID_SHFT 20
460 #define BRIDGE_DIRMAP_W_ID (0xf << BRIDGE_DIRMAP_W_ID_SHFT)
461 #define BRIDGE_DIRMAP_RMF_64 (0x1 << 18)
462 #define BRIDGE_DIRMAP_ADD512 (0x1 << 17)
463 #define BRIDGE_DIRMAP_OFF (0x1ffff << 0)
464 #define BRIDGE_DIRMAP_OFF_ADDRSHFT (31) /* lsbit of DIRMAP_OFF is xtalk address bit 31 */
465 
466 /* Bridge Arbitration register bits definition */
467 #define BRIDGE_ARB_REQ_WAIT_TICK(x) ((x) << 16)
468 #define BRIDGE_ARB_REQ_WAIT_TICK_MASK BRIDGE_ARB_REQ_WAIT_TICK(0x3)
469 #define BRIDGE_ARB_REQ_WAIT_EN(x) ((x) << 8)
470 #define BRIDGE_ARB_REQ_WAIT_EN_MASK BRIDGE_ARB_REQ_WAIT_EN(0xff)
471 #define BRIDGE_ARB_FREEZE_GNT (1 << 6)
472 #define BRIDGE_ARB_HPRI_RING_B2 (1 << 5)
473 #define BRIDGE_ARB_HPRI_RING_B1 (1 << 4)
474 #define BRIDGE_ARB_HPRI_RING_B0 (1 << 3)
475 #define BRIDGE_ARB_LPRI_RING_B2 (1 << 2)
476 #define BRIDGE_ARB_LPRI_RING_B1 (1 << 1)
477 #define BRIDGE_ARB_LPRI_RING_B0 (1 << 0)
478 
479 /* Bridge Bus time-out register bits definition */
480 #define BRIDGE_BUS_PCI_RETRY_HLD(x) ((x) << 16)
481 #define BRIDGE_BUS_PCI_RETRY_HLD_MASK BRIDGE_BUS_PCI_RETRY_HLD(0x1f)
482 #define BRIDGE_BUS_GIO_TIMEOUT (1 << 12)
483 #define BRIDGE_BUS_PCI_RETRY_CNT(x) ((x) << 0)
484 #define BRIDGE_BUS_PCI_RETRY_MASK BRIDGE_BUS_PCI_RETRY_CNT(0x3ff)
485 
486 /* Bridge interrupt status register bits definition */
487 #define BRIDGE_ISR_MULTI_ERR (0x1u << 31)
488 #define BRIDGE_ISR_PMU_ESIZE_FAULT (0x1 << 30)
489 #define BRIDGE_ISR_UNEXP_RESP (0x1 << 29)
490 #define BRIDGE_ISR_BAD_XRESP_PKT (0x1 << 28)
491 #define BRIDGE_ISR_BAD_XREQ_PKT (0x1 << 27)
492 #define BRIDGE_ISR_RESP_XTLK_ERR (0x1 << 26)
493 #define BRIDGE_ISR_REQ_XTLK_ERR (0x1 << 25)
494 #define BRIDGE_ISR_INVLD_ADDR (0x1 << 24)
495 #define BRIDGE_ISR_UNSUPPORTED_XOP (0x1 << 23)
496 #define BRIDGE_ISR_XREQ_FIFO_OFLOW (0x1 << 22)
497 #define BRIDGE_ISR_LLP_REC_SNERR (0x1 << 21)
498 #define BRIDGE_ISR_LLP_REC_CBERR (0x1 << 20)
499 #define BRIDGE_ISR_LLP_RCTY (0x1 << 19)
500 #define BRIDGE_ISR_LLP_TX_RETRY (0x1 << 18)
501 #define BRIDGE_ISR_LLP_TCTY (0x1 << 17)
502 #define BRIDGE_ISR_SSRAM_PERR (0x1 << 16)
503 #define BRIDGE_ISR_PCI_ABORT (0x1 << 15)
504 #define BRIDGE_ISR_PCI_PARITY (0x1 << 14)
505 #define BRIDGE_ISR_PCI_SERR (0x1 << 13)
506 #define BRIDGE_ISR_PCI_PERR (0x1 << 12)
507 #define BRIDGE_ISR_PCI_MST_TIMEOUT (0x1 << 11)
508 #define BRIDGE_ISR_GIO_MST_TIMEOUT BRIDGE_ISR_PCI_MST_TIMEOUT
509 #define BRIDGE_ISR_PCI_RETRY_CNT (0x1 << 10)
510 #define BRIDGE_ISR_XREAD_REQ_TIMEOUT (0x1 << 9)
511 #define BRIDGE_ISR_GIO_B_ENBL_ERR (0x1 << 8)
512 #define BRIDGE_ISR_INT_MSK (0xff << 0)
513 #define BRIDGE_ISR_INT(x) (0x1 << (x))
514 
515 #define BRIDGE_ISR_LINK_ERROR \
516  (BRIDGE_ISR_LLP_REC_SNERR|BRIDGE_ISR_LLP_REC_CBERR| \
517  BRIDGE_ISR_LLP_RCTY|BRIDGE_ISR_LLP_TX_RETRY| \
518  BRIDGE_ISR_LLP_TCTY)
519 
520 #define BRIDGE_ISR_PCIBUS_PIOERR \
521  (BRIDGE_ISR_PCI_MST_TIMEOUT|BRIDGE_ISR_PCI_ABORT)
522 
523 #define BRIDGE_ISR_PCIBUS_ERROR \
524  (BRIDGE_ISR_PCIBUS_PIOERR|BRIDGE_ISR_PCI_PERR| \
525  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_RETRY_CNT| \
526  BRIDGE_ISR_PCI_PARITY)
527 
528 #define BRIDGE_ISR_XTALK_ERROR \
529  (BRIDGE_ISR_XREAD_REQ_TIMEOUT|BRIDGE_ISR_XREQ_FIFO_OFLOW|\
530  BRIDGE_ISR_UNSUPPORTED_XOP|BRIDGE_ISR_INVLD_ADDR| \
531  BRIDGE_ISR_REQ_XTLK_ERR|BRIDGE_ISR_RESP_XTLK_ERR| \
532  BRIDGE_ISR_BAD_XREQ_PKT|BRIDGE_ISR_BAD_XRESP_PKT| \
533  BRIDGE_ISR_UNEXP_RESP)
534 
535 #define BRIDGE_ISR_ERRORS \
536  (BRIDGE_ISR_LINK_ERROR|BRIDGE_ISR_PCIBUS_ERROR| \
537  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR| \
538  BRIDGE_ISR_PMU_ESIZE_FAULT)
539 
540 /*
541  * List of Errors which are fatal and kill the system
542  */
543 #define BRIDGE_ISR_ERROR_FATAL \
544  ((BRIDGE_ISR_XTALK_ERROR & ~BRIDGE_ISR_XREAD_REQ_TIMEOUT)|\
545  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_PARITY )
546 
547 #define BRIDGE_ISR_ERROR_DUMP \
548  (BRIDGE_ISR_PCIBUS_ERROR|BRIDGE_ISR_PMU_ESIZE_FAULT| \
549  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR)
550 
551 /* Bridge interrupt enable register bits definition */
552 #define BRIDGE_IMR_UNEXP_RESP BRIDGE_ISR_UNEXP_RESP
553 #define BRIDGE_IMR_PMU_ESIZE_FAULT BRIDGE_ISR_PMU_ESIZE_FAULT
554 #define BRIDGE_IMR_BAD_XRESP_PKT BRIDGE_ISR_BAD_XRESP_PKT
555 #define BRIDGE_IMR_BAD_XREQ_PKT BRIDGE_ISR_BAD_XREQ_PKT
556 #define BRIDGE_IMR_RESP_XTLK_ERR BRIDGE_ISR_RESP_XTLK_ERR
557 #define BRIDGE_IMR_REQ_XTLK_ERR BRIDGE_ISR_REQ_XTLK_ERR
558 #define BRIDGE_IMR_INVLD_ADDR BRIDGE_ISR_INVLD_ADDR
559 #define BRIDGE_IMR_UNSUPPORTED_XOP BRIDGE_ISR_UNSUPPORTED_XOP
560 #define BRIDGE_IMR_XREQ_FIFO_OFLOW BRIDGE_ISR_XREQ_FIFO_OFLOW
561 #define BRIDGE_IMR_LLP_REC_SNERR BRIDGE_ISR_LLP_REC_SNERR
562 #define BRIDGE_IMR_LLP_REC_CBERR BRIDGE_ISR_LLP_REC_CBERR
563 #define BRIDGE_IMR_LLP_RCTY BRIDGE_ISR_LLP_RCTY
564 #define BRIDGE_IMR_LLP_TX_RETRY BRIDGE_ISR_LLP_TX_RETRY
565 #define BRIDGE_IMR_LLP_TCTY BRIDGE_ISR_LLP_TCTY
566 #define BRIDGE_IMR_SSRAM_PERR BRIDGE_ISR_SSRAM_PERR
567 #define BRIDGE_IMR_PCI_ABORT BRIDGE_ISR_PCI_ABORT
568 #define BRIDGE_IMR_PCI_PARITY BRIDGE_ISR_PCI_PARITY
569 #define BRIDGE_IMR_PCI_SERR BRIDGE_ISR_PCI_SERR
570 #define BRIDGE_IMR_PCI_PERR BRIDGE_ISR_PCI_PERR
571 #define BRIDGE_IMR_PCI_MST_TIMEOUT BRIDGE_ISR_PCI_MST_TIMEOUT
572 #define BRIDGE_IMR_GIO_MST_TIMEOUT BRIDGE_ISR_GIO_MST_TIMEOUT
573 #define BRIDGE_IMR_PCI_RETRY_CNT BRIDGE_ISR_PCI_RETRY_CNT
574 #define BRIDGE_IMR_XREAD_REQ_TIMEOUT BRIDGE_ISR_XREAD_REQ_TIMEOUT
575 #define BRIDGE_IMR_GIO_B_ENBL_ERR BRIDGE_ISR_GIO_B_ENBL_ERR
576 #define BRIDGE_IMR_INT_MSK BRIDGE_ISR_INT_MSK
577 #define BRIDGE_IMR_INT(x) BRIDGE_ISR_INT(x)
578 
579 /* Bridge interrupt reset register bits definition */
580 #define BRIDGE_IRR_MULTI_CLR (0x1 << 6)
581 #define BRIDGE_IRR_CRP_GRP_CLR (0x1 << 5)
582 #define BRIDGE_IRR_RESP_BUF_GRP_CLR (0x1 << 4)
583 #define BRIDGE_IRR_REQ_DSP_GRP_CLR (0x1 << 3)
584 #define BRIDGE_IRR_LLP_GRP_CLR (0x1 << 2)
585 #define BRIDGE_IRR_SSRAM_GRP_CLR (0x1 << 1)
586 #define BRIDGE_IRR_PCI_GRP_CLR (0x1 << 0)
587 #define BRIDGE_IRR_GIO_GRP_CLR (0x1 << 0)
588 #define BRIDGE_IRR_ALL_CLR 0x7f
589 
590 #define BRIDGE_IRR_CRP_GRP (BRIDGE_ISR_UNEXP_RESP | \
591  BRIDGE_ISR_XREQ_FIFO_OFLOW)
592 #define BRIDGE_IRR_RESP_BUF_GRP (BRIDGE_ISR_BAD_XRESP_PKT | \
593  BRIDGE_ISR_RESP_XTLK_ERR | \
594  BRIDGE_ISR_XREAD_REQ_TIMEOUT)
595 #define BRIDGE_IRR_REQ_DSP_GRP (BRIDGE_ISR_UNSUPPORTED_XOP | \
596  BRIDGE_ISR_BAD_XREQ_PKT | \
597  BRIDGE_ISR_REQ_XTLK_ERR | \
598  BRIDGE_ISR_INVLD_ADDR)
599 #define BRIDGE_IRR_LLP_GRP (BRIDGE_ISR_LLP_REC_SNERR | \
600  BRIDGE_ISR_LLP_REC_CBERR | \
601  BRIDGE_ISR_LLP_RCTY | \
602  BRIDGE_ISR_LLP_TX_RETRY | \
603  BRIDGE_ISR_LLP_TCTY)
604 #define BRIDGE_IRR_SSRAM_GRP (BRIDGE_ISR_SSRAM_PERR | \
605  BRIDGE_ISR_PMU_ESIZE_FAULT)
606 #define BRIDGE_IRR_PCI_GRP (BRIDGE_ISR_PCI_ABORT | \
607  BRIDGE_ISR_PCI_PARITY | \
608  BRIDGE_ISR_PCI_SERR | \
609  BRIDGE_ISR_PCI_PERR | \
610  BRIDGE_ISR_PCI_MST_TIMEOUT | \
611  BRIDGE_ISR_PCI_RETRY_CNT)
612 
613 #define BRIDGE_IRR_GIO_GRP (BRIDGE_ISR_GIO_B_ENBL_ERR | \
614  BRIDGE_ISR_GIO_MST_TIMEOUT)
615 
616 /* Bridge INT_DEV register bits definition */
617 #define BRIDGE_INT_DEV_SHFT(n) ((n)*3)
618 #define BRIDGE_INT_DEV_MASK(n) (0x7 << BRIDGE_INT_DEV_SHFT(n))
619 #define BRIDGE_INT_DEV_SET(_dev, _line) (_dev << BRIDGE_INT_DEV_SHFT(_line))
620 
621 /* Bridge interrupt(x) register bits definition */
622 #define BRIDGE_INT_ADDR_HOST 0x0003FF00
623 #define BRIDGE_INT_ADDR_FLD 0x000000FF
624 
625 #define BRIDGE_TMO_PCI_RETRY_HLD_MASK 0x1f0000
626 #define BRIDGE_TMO_GIO_TIMEOUT_MASK 0x001000
627 #define BRIDGE_TMO_PCI_RETRY_CNT_MASK 0x0003ff
628 
629 #define BRIDGE_TMO_PCI_RETRY_CNT_MAX 0x3ff
630 
631 /*
632  * The NASID should be shifted by this amount and stored into the
633  * interrupt(x) register.
634  */
635 #define BRIDGE_INT_ADDR_NASID_SHFT 8
636 
637 /*
638  * The BRIDGE_INT_ADDR_DEST_IO bit should be set to send an interrupt to
639  * memory.
640  */
641 #define BRIDGE_INT_ADDR_DEST_IO (1 << 17)
642 #define BRIDGE_INT_ADDR_DEST_MEM 0
643 #define BRIDGE_INT_ADDR_MASK (1 << 17)
644 
645 /* Bridge device(x) register bits definition */
646 #define BRIDGE_DEV_ERR_LOCK_EN 0x10000000
647 #define BRIDGE_DEV_PAGE_CHK_DIS 0x08000000
648 #define BRIDGE_DEV_FORCE_PCI_PAR 0x04000000
649 #define BRIDGE_DEV_VIRTUAL_EN 0x02000000
650 #define BRIDGE_DEV_PMU_WRGA_EN 0x01000000
651 #define BRIDGE_DEV_DIR_WRGA_EN 0x00800000
652 #define BRIDGE_DEV_DEV_SIZE 0x00400000
653 #define BRIDGE_DEV_RT 0x00200000
654 #define BRIDGE_DEV_SWAP_PMU 0x00100000
655 #define BRIDGE_DEV_SWAP_DIR 0x00080000
656 #define BRIDGE_DEV_PREF 0x00040000
657 #define BRIDGE_DEV_PRECISE 0x00020000
658 #define BRIDGE_DEV_COH 0x00010000
659 #define BRIDGE_DEV_BARRIER 0x00008000
660 #define BRIDGE_DEV_GBR 0x00004000
661 #define BRIDGE_DEV_DEV_SWAP 0x00002000
662 #define BRIDGE_DEV_DEV_IO_MEM 0x00001000
663 #define BRIDGE_DEV_OFF_MASK 0x00000fff
664 #define BRIDGE_DEV_OFF_ADDR_SHFT 20
665 
666 #define BRIDGE_DEV_PMU_BITS (BRIDGE_DEV_PMU_WRGA_EN | \
667  BRIDGE_DEV_SWAP_PMU)
668 #define BRIDGE_DEV_D32_BITS (BRIDGE_DEV_DIR_WRGA_EN | \
669  BRIDGE_DEV_SWAP_DIR | \
670  BRIDGE_DEV_PREF | \
671  BRIDGE_DEV_PRECISE | \
672  BRIDGE_DEV_COH | \
673  BRIDGE_DEV_BARRIER)
674 #define BRIDGE_DEV_D64_BITS (BRIDGE_DEV_DIR_WRGA_EN | \
675  BRIDGE_DEV_SWAP_DIR | \
676  BRIDGE_DEV_COH | \
677  BRIDGE_DEV_BARRIER)
678 
679 /* Bridge Error Upper register bit field definition */
680 #define BRIDGE_ERRUPPR_DEVMASTER (0x1 << 20) /* Device was master */
681 #define BRIDGE_ERRUPPR_PCIVDEV (0x1 << 19) /* Virtual Req value */
682 #define BRIDGE_ERRUPPR_DEVNUM_SHFT (16)
683 #define BRIDGE_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_ERRUPPR_DEVNUM_SHFT)
684 #define BRIDGE_ERRUPPR_DEVICE(err) (((err) >> BRIDGE_ERRUPPR_DEVNUM_SHFT) & 0x7)
685 #define BRIDGE_ERRUPPR_ADDRMASK (0xFFFF)
686 
687 /* Bridge interrupt mode register bits definition */
688 #define BRIDGE_INTMODE_CLR_PKT_EN(x) (0x1 << (x))
689 
690 /* this should be written to the xbow's link_control(x) register */
691 #define BRIDGE_CREDIT 3
692 
693 /* RRB assignment register */
694 #define BRIDGE_RRB_EN 0x8 /* after shifting down */
695 #define BRIDGE_RRB_DEV 0x7 /* after shifting down */
696 #define BRIDGE_RRB_VDEV 0x4 /* after shifting down */
697 #define BRIDGE_RRB_PDEV 0x3 /* after shifting down */
698 
699 /* RRB status register */
700 #define BRIDGE_RRB_VALID(r) (0x00010000<<(r))
701 #define BRIDGE_RRB_INUSE(r) (0x00000001<<(r))
702 
703 /* RRB clear register */
704 #define BRIDGE_RRB_CLEAR(r) (0x00000001<<(r))
705 
706 /* xbox system controller declarations */
707 #define XBOX_BRIDGE_WID 8
708 #define FLASH_PROM1_BASE 0xE00000 /* To read the xbox sysctlr status */
709 #define XBOX_RPS_EXISTS 1 << 6 /* RPS bit in status register */
710 #define XBOX_RPS_FAIL 1 << 4 /* RPS status bit in register */
711 
712 /* ========================================================================
713  */
714 /*
715  * Macros for Xtalk to Bridge bus (PCI/GIO) PIO
716  * refer to section 4.2.1 of Bridge Spec for xtalk to PCI/GIO PIO mappings
717  */
718 /* XTALK addresses that map into Bridge Bus addr space */
719 #define BRIDGE_PIO32_XTALK_ALIAS_BASE 0x000040000000L
720 #define BRIDGE_PIO32_XTALK_ALIAS_LIMIT 0x00007FFFFFFFL
721 #define BRIDGE_PIO64_XTALK_ALIAS_BASE 0x000080000000L
722 #define BRIDGE_PIO64_XTALK_ALIAS_LIMIT 0x0000BFFFFFFFL
723 #define BRIDGE_PCIIO_XTALK_ALIAS_BASE 0x000100000000L
724 #define BRIDGE_PCIIO_XTALK_ALIAS_LIMIT 0x0001FFFFFFFFL
725 
726 /* Ranges of PCI bus space that can be accessed via PIO from xtalk */
727 #define BRIDGE_MIN_PIO_ADDR_MEM 0x00000000 /* 1G PCI memory space */
728 #define BRIDGE_MAX_PIO_ADDR_MEM 0x3fffffff
729 #define BRIDGE_MIN_PIO_ADDR_IO 0x00000000 /* 4G PCI IO space */
730 #define BRIDGE_MAX_PIO_ADDR_IO 0xffffffff
731 
732 /* XTALK addresses that map into PCI addresses */
733 #define BRIDGE_PCI_MEM32_BASE BRIDGE_PIO32_XTALK_ALIAS_BASE
734 #define BRIDGE_PCI_MEM32_LIMIT BRIDGE_PIO32_XTALK_ALIAS_LIMIT
735 #define BRIDGE_PCI_MEM64_BASE BRIDGE_PIO64_XTALK_ALIAS_BASE
736 #define BRIDGE_PCI_MEM64_LIMIT BRIDGE_PIO64_XTALK_ALIAS_LIMIT
737 #define BRIDGE_PCI_IO_BASE BRIDGE_PCIIO_XTALK_ALIAS_BASE
738 #define BRIDGE_PCI_IO_LIMIT BRIDGE_PCIIO_XTALK_ALIAS_LIMIT
739 
740 /*
741  * Macros for Bridge bus (PCI/GIO) to Xtalk DMA
742  */
743 /* Bridge Bus DMA addresses */
744 #define BRIDGE_LOCAL_BASE 0
745 #define BRIDGE_DMA_MAPPED_BASE 0x40000000
746 #define BRIDGE_DMA_MAPPED_SIZE 0x40000000 /* 1G Bytes */
747 #define BRIDGE_DMA_DIRECT_BASE 0x80000000
748 #define BRIDGE_DMA_DIRECT_SIZE 0x80000000 /* 2G Bytes */
749 
750 #define PCI32_LOCAL_BASE BRIDGE_LOCAL_BASE
751 
752 /* PCI addresses of regions decoded by Bridge for DMA */
753 #define PCI32_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE
754 #define PCI32_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE
755 
756 #define IS_PCI32_LOCAL(x) ((ulong_t)(x) < PCI32_MAPPED_BASE)
757 #define IS_PCI32_MAPPED(x) ((ulong_t)(x) < PCI32_DIRECT_BASE && \
758  (ulong_t)(x) >= PCI32_MAPPED_BASE)
759 #define IS_PCI32_DIRECT(x) ((ulong_t)(x) >= PCI32_MAPPED_BASE)
760 #define IS_PCI64(x) ((ulong_t)(x) >= PCI64_BASE)
761 
762 /*
763  * The GIO address space.
764  */
765 /* Xtalk to GIO PIO */
766 #define BRIDGE_GIO_MEM32_BASE BRIDGE_PIO32_XTALK_ALIAS_BASE
767 #define BRIDGE_GIO_MEM32_LIMIT BRIDGE_PIO32_XTALK_ALIAS_LIMIT
768 
769 #define GIO_LOCAL_BASE BRIDGE_LOCAL_BASE
770 
771 /* GIO addresses of regions decoded by Bridge for DMA */
772 #define GIO_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE
773 #define GIO_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE
774 
775 #define IS_GIO_LOCAL(x) ((ulong_t)(x) < GIO_MAPPED_BASE)
776 #define IS_GIO_MAPPED(x) ((ulong_t)(x) < GIO_DIRECT_BASE && \
777  (ulong_t)(x) >= GIO_MAPPED_BASE)
778 #define IS_GIO_DIRECT(x) ((ulong_t)(x) >= GIO_MAPPED_BASE)
779 
780 /* PCI to xtalk mapping */
781 
782 /* given a DIR_OFF value and a pci/gio 32 bits direct address, determine
783  * which xtalk address is accessed
784  */
785 #define BRIDGE_DIRECT_32_SEG_SIZE BRIDGE_DMA_DIRECT_SIZE
786 #define BRIDGE_DIRECT_32_TO_XTALK(dir_off,adr) \
787  ((dir_off) * BRIDGE_DIRECT_32_SEG_SIZE + \
788  ((adr) & (BRIDGE_DIRECT_32_SEG_SIZE - 1)) + PHYS_RAMBASE)
789 
790 /* 64-bit address attribute masks */
791 #define PCI64_ATTR_TARG_MASK 0xf000000000000000
792 #define PCI64_ATTR_TARG_SHFT 60
793 #define PCI64_ATTR_PREF 0x0800000000000000
794 #define PCI64_ATTR_PREC 0x0400000000000000
795 #define PCI64_ATTR_VIRTUAL 0x0200000000000000
796 #define PCI64_ATTR_BAR 0x0100000000000000
797 #define PCI64_ATTR_RMF_MASK 0x00ff000000000000
798 #define PCI64_ATTR_RMF_SHFT 48
799 
800 #ifndef __ASSEMBLY__
801 /* Address translation entry for mapped pci32 accesses */
802 typedef union ate_u {
803  u64 ent;
804  struct ate_s {
805  u64 rmf:16;
806  u64 addr:36;
807  u64 targ:4;
808  u64 reserved:3;
809  u64 barrier:1;
810  u64 prefetch:1;
811  u64 precise:1;
812  u64 coherent:1;
813  u64 valid:1;
814  } field;
815 } ate_t;
816 #endif /* !__ASSEMBLY__ */
817 
818 #define ATE_V 0x01
819 #define ATE_CO 0x02
820 #define ATE_PREC 0x04
821 #define ATE_PREF 0x08
822 #define ATE_BAR 0x10
823 
824 #define ATE_PFNSHIFT 12
825 #define ATE_TIDSHIFT 8
826 #define ATE_RMFSHIFT 48
827 
828 #define mkate(xaddr, xid, attr) ((xaddr) & 0x0000fffffffff000ULL) | \
829  ((xid)<<ATE_TIDSHIFT) | \
830  (attr)
831 
832 #define BRIDGE_INTERNAL_ATES 128
833 
834 struct bridge_controller {
835  struct pci_controller pc;
836  struct resource mem;
837  struct resource io;
838  bridge_t *base;
839  nasid_t nasid;
840  unsigned int widget_id;
841  unsigned int irq_cpu;
842  u64 baddr;
843  unsigned int pci_int[8];
844 };
845 
846 #define BRIDGE_CONTROLLER(bus) \
847  ((struct bridge_controller *)((bus)->sysdata))
848 
849 extern void register_bridge_irq(unsigned int irq);
850 extern int request_bridge_irq(struct bridge_controller *bc);
851 
852 extern struct pci_ops bridge_pci_ops;
853 
854 #endif /* _ASM_PCI_BRIDGE_H */
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