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hubio.h

Last change on this file was 2, checked in by phkim, 11 years ago

1.phkim

revision copy newcon3sk r27

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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	* Derived from IRIX <sys/SN/SN0/hubio.h>, Revision 1.80.
7	*
8	* Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
9	* Copyright (C) 1999 by Ralf Baechle
10	*/
11	#ifndef _ASM_SGI_SN_SN0_HUBIO_H
12	#define _ASM_SGI_SN_SN0_HUBIO_H
13
14	/*
15	* Hub I/O interface registers
16	*
17	* All registers in this file are subject to change until Hub chip tapeout.
18	* In general, the longer software name should be used when available.
19	*/
20
21	/*
22	* Slightly friendlier names for some common registers.
23	* The hardware definitions follow.
24	*/
25	#define IIO_WIDGET IIO_WID /* Widget identification */
26	#define IIO_WIDGET_STAT IIO_WSTAT /* Widget status register */
27	#define IIO_WIDGET_CTRL IIO_WCR /* Widget control register */
28	#define IIO_WIDGET_TOUT IIO_WRTO /* Widget request timeout */
29	#define IIO_WIDGET_FLUSH IIO_WTFR /* Widget target flush */
30	#define IIO_PROTECT IIO_ILAPR /* IO interface protection */
31	#define IIO_PROTECT_OVRRD IIO_ILAPO /* IO protect override */
32	#define IIO_OUTWIDGET_ACCESS IIO_IOWA /* Outbound widget access */
33	#define IIO_INWIDGET_ACCESS IIO_IIWA /* Inbound widget access */
34	#define IIO_INDEV_ERR_MASK IIO_IIDEM /* Inbound device error mask */
35	#define IIO_LLP_CSR IIO_ILCSR /* LLP control and status */
36	#define IIO_LLP_LOG IIO_ILLR /* LLP log */
37	#define IIO_XTALKCC_TOUT IIO_IXCC /* Xtalk credit count timeout*/
38	#define IIO_XTALKTT_TOUT IIO_IXTT /* Xtalk tail timeout */
39	#define IIO_IO_ERR_CLR IIO_IECLR /* IO error clear */
40	#define IIO_BTE_CRB_CNT IIO_IBCN /* IO BTE CRB count */
41
42	#define IIO_LLP_CSR_IS_UP 0x00002000
43	#define IIO_LLP_CSR_LLP_STAT_MASK 0x00003000
44	#define IIO_LLP_CSR_LLP_STAT_SHFT 12
45
46	/* key to IIO_PROTECT_OVRRD */
47	#define IIO_PROTECT_OVRRD_KEY 0x53474972756c6573ull /* "SGIrules" */
48
49	/* BTE register names */
50	#define IIO_BTE_STAT_0 IIO_IBLS_0 /* Also BTE length/status 0 */
51	#define IIO_BTE_SRC_0 IIO_IBSA_0 /* Also BTE source address 0 */
52	#define IIO_BTE_DEST_0 IIO_IBDA_0 /* Also BTE dest. address 0 */
53	#define IIO_BTE_CTRL_0 IIO_IBCT_0 /* Also BTE control/terminate 0 */
54	#define IIO_BTE_NOTIFY_0 IIO_IBNA_0 /* Also BTE notification 0 */
55	#define IIO_BTE_INT_0 IIO_IBIA_0 /* Also BTE interrupt 0 */
56	#define IIO_BTE_OFF_0 0 /* Base offset from BTE 0 regs. */
57	#define IIO_BTE_OFF_1 IIO_IBLS_1 - IIO_IBLS_0 /* Offset from base to BTE 1 */
58
59	/* BTE register offsets from base */
60	#define BTEOFF_STAT 0
61	#define BTEOFF_SRC (IIO_BTE_SRC_0 - IIO_BTE_STAT_0)
62	#define BTEOFF_DEST (IIO_BTE_DEST_0 - IIO_BTE_STAT_0)
63	#define BTEOFF_CTRL (IIO_BTE_CTRL_0 - IIO_BTE_STAT_0)
64	#define BTEOFF_NOTIFY (IIO_BTE_NOTIFY_0 - IIO_BTE_STAT_0)
65	#define BTEOFF_INT (IIO_BTE_INT_0 - IIO_BTE_STAT_0)
66
67
68	/*
69	* The following definitions use the names defined in the IO interface
70	* document for ease of reference. When possible, software should
71	* generally use the longer but clearer names defined above.
72	*/
73
74	#define IIO_BASE 0x400000
75	#define IIO_BASE_BTE0 0x410000
76	#define IIO_BASE_BTE1 0x420000
77	#define IIO_BASE_PERF 0x430000
78	#define IIO_PERF_CNT 0x430008
79
80	#define IO_PERF_SETS 32
81
82	#define IIO_WID 0x400000 /* Widget identification */
83	#define IIO_WSTAT 0x400008 /* Widget status */
84	#define IIO_WCR 0x400020 /* Widget control */
85
86	#define IIO_WSTAT_ECRAZY (1ULL << 32) /* Hub gone crazy */
87	#define IIO_WSTAT_TXRETRY (1ULL << 9) /* Hub Tx Retry timeout */
88	#define IIO_WSTAT_TXRETRY_MASK (0x7F)
89	#define IIO_WSTAT_TXRETRY_SHFT (16)
90	#define IIO_WSTAT_TXRETRY_CNT(w) (((w) >> IIO_WSTAT_TXRETRY_SHFT) & \
91	IIO_WSTAT_TXRETRY_MASK)
92
93	#define IIO_ILAPR 0x400100 /* Local Access Protection */
94	#define IIO_ILAPO 0x400108 /* Protection override */
95	#define IIO_IOWA 0x400110 /* outbound widget access */
96	#define IIO_IIWA 0x400118 /* inbound widget access */
97	#define IIO_IIDEM 0x400120 /* Inbound Device Error Mask */
98	#define IIO_ILCSR 0x400128 /* LLP control and status */
99	#define IIO_ILLR 0x400130 /* LLP Log */
100	#define IIO_IIDSR 0x400138 /* Interrupt destination */
101
102	#define IIO_IIBUSERR 0x1400208 /* Reads here cause a bus error. */
103
104	/* IO Interrupt Destination Register */
105	#define IIO_IIDSR_SENT_SHIFT 28
106	#define IIO_IIDSR_SENT_MASK 0x10000000
107	#define IIO_IIDSR_ENB_SHIFT 24
108	#define IIO_IIDSR_ENB_MASK 0x01000000
109	#define IIO_IIDSR_NODE_SHIFT 8
110	#define IIO_IIDSR_NODE_MASK 0x0000ff00
111	#define IIO_IIDSR_LVL_SHIFT 0
112	#define IIO_IIDSR_LVL_MASK 0x0000003f
113
114
115	/* GFX Flow Control Node/Widget Register */
116	#define IIO_IGFX_0 0x400140 /* gfx node/widget register 0 */
117	#define IIO_IGFX_1 0x400148 /* gfx node/widget register 1 */
118	#define IIO_IGFX_W_NUM_BITS 4 /* size of widget num field */
119	#define IIO_IGFX_W_NUM_MASK ((1<<IIO_IGFX_W_NUM_BITS)-1)
120	#define IIO_IGFX_W_NUM_SHIFT 0
121	#define IIO_IGFX_N_NUM_BITS 9 /* size of node num field */
122	#define IIO_IGFX_N_NUM_MASK ((1<<IIO_IGFX_N_NUM_BITS)-1)
123	#define IIO_IGFX_N_NUM_SHIFT 4
124	#define IIO_IGFX_P_NUM_BITS 1 /* size of processor num field */
125	#define IIO_IGFX_P_NUM_MASK ((1<<IIO_IGFX_P_NUM_BITS)-1)
126	#define IIO_IGFX_P_NUM_SHIFT 16
127	#define IIO_IGFX_VLD_BITS 1 /* size of valid field */
128	#define IIO_IGFX_VLD_MASK ((1<<IIO_IGFX_VLD_BITS)-1)
129	#define IIO_IGFX_VLD_SHIFT 20
130	#define IIO_IGFX_INIT(widget, node, cpu, valid) (\
131	(((widget) & IIO_IGFX_W_NUM_MASK) << IIO_IGFX_W_NUM_SHIFT) \| \
132	(((node) & IIO_IGFX_N_NUM_MASK) << IIO_IGFX_N_NUM_SHIFT) \| \
133	(((cpu) & IIO_IGFX_P_NUM_MASK) << IIO_IGFX_P_NUM_SHIFT) \| \
134	(((valid) & IIO_IGFX_VLD_MASK) << IIO_IGFX_VLD_SHIFT) )
135
136	/* Scratch registers (not all bits available) */
137	#define IIO_SCRATCH_REG0 0x400150
138	#define IIO_SCRATCH_REG1 0x400158
139	#define IIO_SCRATCH_MASK 0x0000000f00f11fff
140
141	#define IIO_SCRATCH_BIT0_0 0x0000000800000000
142	#define IIO_SCRATCH_BIT0_1 0x0000000400000000
143	#define IIO_SCRATCH_BIT0_2 0x0000000200000000
144	#define IIO_SCRATCH_BIT0_3 0x0000000100000000
145	#define IIO_SCRATCH_BIT0_4 0x0000000000800000
146	#define IIO_SCRATCH_BIT0_5 0x0000000000400000
147	#define IIO_SCRATCH_BIT0_6 0x0000000000200000
148	#define IIO_SCRATCH_BIT0_7 0x0000000000100000
149	#define IIO_SCRATCH_BIT0_8 0x0000000000010000
150	#define IIO_SCRATCH_BIT0_9 0x0000000000001000
151	#define IIO_SCRATCH_BIT0_R 0x0000000000000fff
152
153	/* IO Translation Table Entries */
154	#define IIO_NUM_ITTES 7 /* ITTEs numbered 0..6 */
155	/* Hw manuals number them 1..7! */
156
157	/*
158	* As a permanent workaround for a bug in the PI side of the hub, we've
159	* redefined big window 7 as small window 0.
160	*/
161	#define HUB_NUM_BIG_WINDOW IIO_NUM_ITTES - 1
162
163	/*
164	* Use the top big window as a surrogate for the first small window
165	*/
166	#define SWIN0_BIGWIN HUB_NUM_BIG_WINDOW
167
168	#define ILCSR_WARM_RESET 0x100
169	/*
170	* The IO LLP control status register and widget control register
171	*/
172	#ifndef __ASSEMBLY__
173
174	typedef union hubii_wid_u {
175	__u64 wid_reg_value;
176	struct {
177	__u64 wid_rsvd: 32, /* unused */
178	wid_rev_num: 4, /* revision number */
179	wid_part_num: 16, /* the widget type: hub=c101 */
180	wid_mfg_num: 11, /* Manufacturer id (IBM) */
181	wid_rsvd1: 1; /* Reserved */
182	} wid_fields_s;
183	} hubii_wid_t;
184
185
186	typedef union hubii_wcr_u {
187	__u64 wcr_reg_value;
188	struct {
189	__u64 wcr_rsvd: 41, /* unused */
190	wcr_e_thresh: 5, /* elasticity threshold */
191	wcr_dir_con: 1, /* widget direct connect */
192	wcr_f_bad_pkt: 1, /* Force bad llp pkt enable */
193	wcr_xbar_crd: 3, /* LLP crossbar credit */
194	wcr_rsvd1: 8, /* Reserved */
195	wcr_tag_mode: 1, /* Tag mode */
196	wcr_widget_id: 4; /* LLP crossbar credit */
197	} wcr_fields_s;
198	} hubii_wcr_t;
199
200	#define iwcr_dir_con wcr_fields_s.wcr_dir_con
201
202	typedef union hubii_wstat_u {
203	__u64 reg_value;
204	struct {
205	__u64 rsvd1: 31,
206	crazy: 1, /* Crazy bit */
207	rsvd2: 8,
208	llp_tx_cnt: 8, /* LLP Xmit retry counter */
209	rsvd3: 6,
210	tx_max_rtry: 1, /* LLP Retry Timeout Signal */
211	rsvd4: 2,
212	xt_tail_to: 1, /* Xtalk Tail Timeout */
213	xt_crd_to: 1, /* Xtalk Credit Timeout */
214	pending: 4; /* Pending Requests */
215	} wstat_fields_s;
216	} hubii_wstat_t;
217
218
219	typedef union hubii_ilcsr_u {
220	__u64 icsr_reg_value;
221	struct {
222	__u64 icsr_rsvd: 22, /* unused */
223	icsr_max_burst: 10, /* max burst */
224	icsr_rsvd4: 6, /* reserved */
225	icsr_max_retry: 10, /* max retry */
226	icsr_rsvd3: 2, /* reserved */
227	icsr_lnk_stat: 2, /* link status */
228	icsr_bm8: 1, /* Bit mode 8 */
229	icsr_llp_en: 1, /* LLP enable bit */
230	icsr_rsvd2: 1, /* reserver */
231	icsr_wrm_reset: 1, /* Warm reset bit */
232	icsr_rsvd1: 2, /* Data ready offset */
233	icsr_null_to: 6; /* Null timeout */
234
235	} icsr_fields_s;
236	} hubii_ilcsr_t;
237
238
239	typedef union hubii_iowa_u {
240	__u64 iowa_reg_value;
241	struct {
242	__u64 iowa_rsvd: 48, /* unused */
243	iowa_wxoac: 8, /* xtalk widget access bits */
244	iowa_rsvd1: 7, /* xtalk widget access bits */
245	iowa_w0oac: 1; /* xtalk widget access bits */
246	} iowa_fields_s;
247	} hubii_iowa_t;
248
249	typedef union hubii_iiwa_u {
250	__u64 iiwa_reg_value;
251	struct {
252	__u64 iiwa_rsvd: 48, /* unused */
253	iiwa_wxiac: 8, /* hub wid access bits */
254	iiwa_rsvd1: 7, /* reserved */
255	iiwa_w0iac: 1; /* hub wid0 access */
256	} iiwa_fields_s;
257	} hubii_iiwa_t;
258
259	typedef union hubii_illr_u {
260	__u64 illr_reg_value;
261	struct {
262	__u64 illr_rsvd: 32, /* unused */
263	illr_cb_cnt: 16, /* checkbit error count */
264	illr_sn_cnt: 16; /* sequence number count */
265	} illr_fields_s;
266	} hubii_illr_t;
267
268	/* The structures below are defined to extract and modify the ii
269	performance registers */
270
271	/* io_perf_sel allows the caller to specify what tests will be
272	performed */
273	typedef union io_perf_sel {
274	__u64 perf_sel_reg;
275	struct {
276	__u64 perf_rsvd : 48,
277	perf_icct : 8,
278	perf_ippr1 : 4,
279	perf_ippr0 : 4;
280	} perf_sel_bits;
281	} io_perf_sel_t;
282
283	/* io_perf_cnt is to extract the count from the hub registers. Due to
284	hardware problems there is only one counter, not two. */
285
286	typedef union io_perf_cnt {
287	__u64 perf_cnt;
288	struct {
289	__u64 perf_rsvd1 : 32,
290	perf_rsvd2 : 12,
291	perf_cnt : 20;
292	} perf_cnt_bits;
293	} io_perf_cnt_t;
294
295	#endif /* !__ASSEMBLY__ */
296
297
298	#define LNK_STAT_WORKING 0x2
299
300	#define IIO_LLP_CB_MAX 0xffff
301	#define IIO_LLP_SN_MAX 0xffff
302
303	/* IO PRB Entries */
304	#define IIO_NUM_IPRBS (9)
305	#define IIO_IOPRB_0 0x400198 /* PRB entry 0 */
306	#define IIO_IOPRB_8 0x4001a0 /* PRB entry 8 */
307	#define IIO_IOPRB_9 0x4001a8 /* PRB entry 9 */
308	#define IIO_IOPRB_A 0x4001b0 /* PRB entry a */
309	#define IIO_IOPRB_B 0x4001b8 /* PRB entry b */
310	#define IIO_IOPRB_C 0x4001c0 /* PRB entry c */
311	#define IIO_IOPRB_D 0x4001c8 /* PRB entry d */
312	#define IIO_IOPRB_E 0x4001d0 /* PRB entry e */
313	#define IIO_IOPRB_F 0x4001d8 /* PRB entry f */
314
315
316	#define IIO_IXCC 0x4001e0 /* Crosstalk credit count timeout */
317	#define IIO_IXTCC IIO_IXCC
318	#define IIO_IMEM 0x4001e8 /* Miscellaneous Enable Mask */
319	#define IIO_IXTT 0x4001f0 /* Crosstalk tail timeout */
320	#define IIO_IECLR 0x4001f8 /* IO error clear */
321	#define IIO_IBCN 0x400200 /* IO BTE CRB count */
322
323	/*
324	* IIO_IMEM Register fields.
325	*/
326	#define IIO_IMEM_W0ESD 0x1 /* Widget 0 shut down due to error */
327	#define IIO_IMEM_B0ESD (1 << 4) /* BTE 0 shut down due to error */
328	#define IIO_IMEM_B1ESD (1 << 8) /* BTE 1 Shut down due to error */
329
330	/* PIO Read address Table Entries */
331	#define IIO_IPCA 0x400300 /* PRB Counter adjust */
332	#define IIO_NUM_PRTES 8 /* Total number of PRB table entries */
333	#define IIO_PRTE_0 0x400308 /* PIO Read address table entry 0 */
334	#define IIO_PRTE(_x) (IIO_PRTE_0 + (8 * (_x)))
335	#define IIO_WIDPRTE(x) IIO_PRTE(((x) - 8)) /* widget ID to its PRTE num */
336	#define IIO_IPDR 0x400388 /* PIO table entry deallocation */
337	#define IIO_ICDR 0x400390 /* CRB Entry Deallocation */
338	#define IIO_IFDR 0x400398 /* IOQ FIFO Depth */
339	#define IIO_IIAP 0x4003a0 /* IIQ Arbitration Parameters */
340	#define IIO_IMMR IIO_IIAP
341	#define IIO_ICMR 0x4003a8 /* CRB Managment Register */
342	#define IIO_ICCR 0x4003b0 /* CRB Control Register */
343	#define IIO_ICTO 0x4003b8 /* CRB Time Out Register */
344	#define IIO_ICTP 0x4003c0 /* CRB Time Out Prescalar */
345
346
347	/*
348	* ICMR register fields
349	*/
350	#define IIO_ICMR_PC_VLD_SHFT 36
351	#define IIO_ICMR_PC_VLD_MASK (0x7fffUL << IIO_ICMR_PC_VLD_SHFT)
352
353	#define IIO_ICMR_CRB_VLD_SHFT 20
354	#define IIO_ICMR_CRB_VLD_MASK (0x7fffUL << IIO_ICMR_CRB_VLD_SHFT)
355
356	#define IIO_ICMR_FC_CNT_SHFT 16
357	#define IIO_ICMR_FC_CNT_MASK (0xf << IIO_ICMR_FC_CNT_SHFT)
358
359	#define IIO_ICMR_C_CNT_SHFT 4
360	#define IIO_ICMR_C_CNT_MASK (0xf << IIO_ICMR_C_CNT_SHFT)
361
362	#define IIO_ICMR_P_CNT_SHFT 0
363	#define IIO_ICMR_P_CNT_MASK (0xf << IIO_ICMR_P_CNT_SHFT)
364
365	#define IIO_ICMR_PRECISE (1UL << 52)
366	#define IIO_ICMR_CLR_RPPD (1UL << 13)
367	#define IIO_ICMR_CLR_RQPD (1UL << 12)
368
369	/*
370	* IIO PIO Deallocation register field masks : (IIO_IPDR)
371	*/
372	#define IIO_IPDR_PND (1 << 4)
373
374	/*
375	* IIO CRB deallocation register field masks: (IIO_ICDR)
376	*/
377	#define IIO_ICDR_PND (1 << 4)
378
379	/*
380	* IIO CRB control register Fields: IIO_ICCR
381	*/
382	#define IIO_ICCR_PENDING (0x10000)
383	#define IIO_ICCR_CMD_MASK (0xFF)
384	#define IIO_ICCR_CMD_SHFT (7)
385	#define IIO_ICCR_CMD_NOP (0x0) /* No Op */
386	#define IIO_ICCR_CMD_WAKE (0x100) /* Reactivate CRB entry and process */
387	#define IIO_ICCR_CMD_TIMEOUT (0x200) /* Make CRB timeout & mark invalid */
388	#define IIO_ICCR_CMD_EJECT (0x400) /* Contents of entry written to memory
389	* via a WB
390	*/
391	#define IIO_ICCR_CMD_FLUSH (0x800)
392
393	/*
394	* CRB manipulation macros
395	* The CRB macros are slightly complicated, since there are up to
396	* four registers associated with each CRB entry.
397	*/
398	#define IIO_NUM_CRBS 15 /* Number of CRBs */
399	#define IIO_NUM_NORMAL_CRBS 12 /* Number of regular CRB entries */
400	#define IIO_NUM_PC_CRBS 4 /* Number of partial cache CRBs */
401	#define IIO_ICRB_OFFSET 8
402	#define IIO_ICRB_0 0x400400
403	/* XXX - This is now tuneable:
404	#define IIO_FIRST_PC_ENTRY 12
405	*/
406
407	#define IIO_ICRB_A(_x) (IIO_ICRB_0 + (4 * IIO_ICRB_OFFSET * (_x)))
408	#define IIO_ICRB_B(_x) (IIO_ICRB_A(_x) + 1*IIO_ICRB_OFFSET)
409	#define IIO_ICRB_C(_x) (IIO_ICRB_A(_x) + 2*IIO_ICRB_OFFSET)
410	#define IIO_ICRB_D(_x) (IIO_ICRB_A(_x) + 3*IIO_ICRB_OFFSET)
411
412	/* XXX - IBUE register coming for Hub 2 */
413
414	/*
415	*
416	* CRB Register description.
417	*
418	* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
419	* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
420	* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
421	* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
422	* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
423	*
424	* Many of the fields in CRB are status bits used by hardware
425	* for implementation of the protocol. It's very dangerous to
426	* mess around with the CRB registers.
427	*
428	* It's OK to read the CRB registers and try to make sense out of the
429	* fields in CRB.
430	*
431	* Updating CRB requires all activities in Hub IIO to be quiesced.
432	* otherwise, a write to CRB could corrupt other CRB entries.
433	* CRBs are here only as a back door peek to hub IIO's status.
434	* Quiescing implies no dmas no PIOs
435	* either directly from the cpu or from sn0net.
436	* this is not something that can be done easily. So, AVOID updating
437	* CRBs.
438	*/
439
440	/*
441	* Fields in CRB Register A
442	*/
443	#ifndef __ASSEMBLY__
444	typedef union icrba_u {
445	__u64 reg_value;
446	struct {
447	__u64 resvd: 6,
448	stall_bte0: 1, /* Stall BTE 0 */
449	stall_bte1: 1, /* Stall BTE 1 */
450	error: 1, /* CRB has an error */
451	ecode: 3, /* Error Code */
452	lnetuce: 1, /* SN0net Uncorrectable error */
453	mark: 1, /* CRB Has been marked */
454	xerr: 1, /* Error bit set in xtalk header */
455	sidn: 4, /* SIDN field from xtalk */
456	tnum: 5, /* TNUM field in xtalk */
457	addr: 38, /* Address of request */
458	valid: 1, /* Valid status */
459	iow: 1; /* IO Write operation */
460	} icrba_fields_s;
461	} icrba_t;
462
463	/* This is an alternate typedef for the HUB1 CRB A in order to allow
464	runtime selection of the format based on the REV_ID field of the
465	NI_STATUS_REV_ID register. */
466	typedef union h1_icrba_u {
467	__u64 reg_value;
468
469	struct {
470	__u64 resvd: 6,
471	unused: 1, /* Unused but RW!! */
472	error: 1, /* CRB has an error */
473	ecode: 4, /* Error Code */
474	lnetuce: 1, /* SN0net Uncorrectable error */
475	mark: 1, /* CRB Has been marked */
476	xerr: 1, /* Error bit set in xtalk header */
477	sidn: 4, /* SIDN field from xtalk */
478	tnum: 5, /* TNUM field in xtalk */
479	addr: 38, /* Address of request */
480	valid: 1, /* Valid status */
481	iow: 1; /* IO Write operation */
482	} h1_icrba_fields_s;
483	} h1_icrba_t;
484
485	/* XXX - Is this still right? Check the spec. */
486	#define ICRBN_A_CERR_SHFT 54
487	#define ICRBN_A_ERR_MASK 0x3ff
488
489	#if 0 /* Disabled, this causes namespace polution and break allmodconfig */
490	/*
491	* Easy access macros.
492	*/
493	#define a_error icrba_fields_s.error
494	#define a_ecode icrba_fields_s.ecode
495	#define a_lnetuce icrba_fields_s.lnetuce
496	#define a_mark icrba_fields_s.mark
497	#define a_xerr icrba_fields_s.xerr
498	#define a_sidn icrba_fields_s.sidn
499	#define a_tnum icrba_fields_s.tnum
500	#define a_addr icrba_fields_s.addr
501	#define a_valid icrba_fields_s.valid
502	#define a_iow icrba_fields_s.iow
503	#endif
504
505	#endif /* !__ASSEMBLY__ */
506
507	#define IIO_ICRB_ADDR_SHFT 2 /* Shift to get proper address */
508
509	/*
510	* values for "ecode" field
511	*/
512	#define IIO_ICRB_ECODE_DERR 0 /* Directory error due to IIO access */
513	#define IIO_ICRB_ECODE_PERR 1 /* Poison error on IO access */
514	#define IIO_ICRB_ECODE_WERR 2 /* Write error by IIO access
515	* e.g. WINV to a Read only line.
516	*/
517	#define IIO_ICRB_ECODE_AERR 3 /* Access error caused by IIO access */
518	#define IIO_ICRB_ECODE_PWERR 4 /* Error on partial write */
519	#define IIO_ICRB_ECODE_PRERR 5 /* Error on partial read */
520	#define IIO_ICRB_ECODE_TOUT 6 /* CRB timeout before deallocating */
521	#define IIO_ICRB_ECODE_XTERR 7 /* Incoming xtalk pkt had error bit */
522
523
524
525	/*
526	* Fields in CRB Register B
527	*/
528	#ifndef __ASSEMBLY__
529	typedef union icrbb_u {
530	__u64 reg_value;
531	struct {
532	__u64 rsvd1: 5,
533	btenum: 1, /* BTE to which entry belongs to */
534	cohtrans: 1, /* Coherent transaction */
535	xtsize: 2, /* Xtalk operation size
536	* 0: Double Word
537	* 1: 32 Bytes.
538	* 2: 128 Bytes,
539	* 3: Reserved.
540	*/
541	srcnode: 9, /* Source Node ID */
542	srcinit: 2, /* Source Initiator:
543	* See below for field values.
544	*/
545	useold: 1, /* Use OLD command for processing */
546	imsgtype: 2, /* Incoming message type
547	* see below for field values
548	*/
549	imsg: 8, /* Incoming message */
550	initator: 3, /* Initiator of original request
551	* See below for field values.
552	*/
553	reqtype: 5, /* Identifies type of request
554	* See below for field values.
555	*/
556	rsvd2: 7,
557	ackcnt: 11, /* Invalidate ack count */
558	resp: 1, /* data response given to processor */
559	ack: 1, /* indicates data ack received */
560	hold: 1, /* entry is gathering inval acks */
561	wb_pend:1, /* waiting for writeback to complete */
562	intvn: 1, /* Intervention */
563	stall_ib: 1, /* Stall Ibuf (from crosstalk) */
564	stall_intr: 1; /* Stall internal interrupts */
565	} icrbb_field_s;
566	} icrbb_t;
567
568	/* This is an alternate typedef for the HUB1 CRB B in order to allow
569	runtime selection of the format based on the REV_ID field of the
570	NI_STATUS_REV_ID register. */
571	typedef union h1_icrbb_u {
572	__u64 reg_value;
573	struct {
574	__u64 rsvd1: 5,
575	btenum: 1, /* BTE to which entry belongs to */
576	cohtrans: 1, /* Coherent transaction */
577	xtsize: 2, /* Xtalk operation size
578	* 0: Double Word
579	* 1: 32 Bytes.
580	* 2: 128 Bytes,
581	* 3: Reserved.
582	*/
583	srcnode: 9, /* Source Node ID */
584	srcinit: 2, /* Source Initiator:
585	* See below for field values.
586	*/
587	useold: 1, /* Use OLD command for processing */
588	imsgtype: 2, /* Incoming message type
589	* see below for field values
590	*/
591	imsg: 8, /* Incoming message */
592	initator: 3, /* Initiator of original request
593	* See below for field values.
594	*/
595	rsvd2: 1,
596	pcache: 1, /* entry belongs to partial cache */
597	reqtype: 5, /* Identifies type of request
598	* See below for field values.
599	*/
600	stl_ib: 1, /* stall Ibus coming from xtalk */
601	stl_intr: 1, /* Stall internal interrupts */
602	stl_bte0: 1, /* Stall BTE 0 */
603	stl_bte1: 1, /* Stall BTE 1 */
604	intrvn: 1, /* Req was target of intervention */
605	ackcnt: 11, /* Invalidate ack count */
606	resp: 1, /* data response given to processor */
607	ack: 1, /* indicates data ack received */
608	hold: 1, /* entry is gathering inval acks */
609	wb_pend:1, /* waiting for writeback to complete */
610	sleep: 1, /* xtalk req sleeping till IO-sync */
611	pnd_reply: 1, /* replies not issed due to IOQ full */
612	pnd_req: 1; /* reqs not issued due to IOQ full */
613	} h1_icrbb_field_s;
614	} h1_icrbb_t;
615
616
617	#define b_imsgtype icrbb_field_s.imsgtype
618	#define b_btenum icrbb_field_s.btenum
619	#define b_cohtrans icrbb_field_s.cohtrans
620	#define b_xtsize icrbb_field_s.xtsize
621	#define b_srcnode icrbb_field_s.srcnode
622	#define b_srcinit icrbb_field_s.srcinit
623	#define b_imsgtype icrbb_field_s.imsgtype
624	#define b_imsg icrbb_field_s.imsg
625	#define b_initiator icrbb_field_s.initiator
626
627	#endif /* !__ASSEMBLY__ */
628
629	/*
630	* values for field xtsize
631	*/
632	#define IIO_ICRB_XTSIZE_DW 0 /* Xtalk operation size is 8 bytes */
633	#define IIO_ICRB_XTSIZE_32 1 /* Xtalk operation size is 32 bytes */
634	#define IIO_ICRB_XTSIZE_128 2 /* Xtalk operation size is 128 bytes */
635
636	/*
637	* values for field srcinit
638	*/
639	#define IIO_ICRB_PROC0 0 /* Source of request is Proc 0 */
640	#define IIO_ICRB_PROC1 1 /* Source of request is Proc 1 */
641	#define IIO_ICRB_GB_REQ 2 /* Source is Guranteed BW request */
642	#define IIO_ICRB_IO_REQ 3 /* Source is Normal IO request */
643
644	/*
645	* Values for field imsgtype
646	*/
647	#define IIO_ICRB_IMSGT_XTALK 0 /* Incoming Meessage from Xtalk */
648	#define IIO_ICRB_IMSGT_BTE 1 /* Incoming message from BTE */
649	#define IIO_ICRB_IMSGT_SN0NET 2 /* Incoming message from SN0 net */
650	#define IIO_ICRB_IMSGT_CRB 3 /* Incoming message from CRB ??? */
651
652	/*
653	* values for field initiator.
654	*/
655	#define IIO_ICRB_INIT_XTALK 0 /* Message originated in xtalk */
656	#define IIO_ICRB_INIT_BTE0 0x1 /* Message originated in BTE 0 */
657	#define IIO_ICRB_INIT_SN0NET 0x2 /* Message originated in SN0net */
658	#define IIO_ICRB_INIT_CRB 0x3 /* Message originated in CRB ? */
659	#define IIO_ICRB_INIT_BTE1 0x5 /* MEssage originated in BTE 1 */
660
661	/*
662	* Values for field reqtype.
663	*/
664	/* XXX - Need to fix this for Hub 2 */
665	#define IIO_ICRB_REQ_DWRD 0 /* Request type double word */
666	#define IIO_ICRB_REQ_QCLRD 1 /* Request is Qrtr Caceh line Rd */
667	#define IIO_ICRB_REQ_BLKRD 2 /* Request is block read */
668	#define IIO_ICRB_REQ_RSHU 6 /* Request is BTE block read */
669	#define IIO_ICRB_REQ_REXU 7 /* request is BTE Excl Read */
670	#define IIO_ICRB_REQ_RDEX 8 /* Request is Read Exclusive */
671	#define IIO_ICRB_REQ_WINC 9 /* Request is Write Invalidate */
672	#define IIO_ICRB_REQ_BWINV 10 /* Request is BTE Winv */
673	#define IIO_ICRB_REQ_PIORD 11 /* Request is PIO read */
674	#define IIO_ICRB_REQ_PIOWR 12 /* Request is PIO Write */
675	#define IIO_ICRB_REQ_PRDM 13 /* Request is Fetch&Op */
676	#define IIO_ICRB_REQ_PWRM 14 /* Request is Store &Op */
677	#define IIO_ICRB_REQ_PTPWR 15 /* Request is Peer to peer */
678	#define IIO_ICRB_REQ_WB 16 /* Request is Write back */
679	#define IIO_ICRB_REQ_DEX 17 /* Retained DEX Cache line */
680
681	/*
682	* Fields in CRB Register C
683	*/
684
685	#ifndef __ASSEMBLY__
686
687	typedef union icrbc_s {
688	__u64 reg_value;
689	struct {
690	__u64 rsvd: 6,
691	sleep: 1,
692	pricnt: 4, /* Priority count sent with Read req */
693	pripsc: 4, /* Priority Pre scalar */
694	bteop: 1, /* BTE Operation */
695	push_be: 34, /* Push address Byte enable
696	* Holds push addr, if CRB is for BTE
697	* If CRB belongs to Partial cache,
698	* this contains byte enables bits
699	* ([47:46] = 0)
700	*/
701	suppl: 11, /* Supplemental field */
702	barrop: 1, /* Barrier Op bit set in xtalk req */
703	doresp: 1, /* Xtalk req needs a response */
704	gbr: 1; /* GBR bit set in xtalk packet */
705	} icrbc_field_s;
706	} icrbc_t;
707
708	#define c_pricnt icrbc_field_s.pricnt
709	#define c_pripsc icrbc_field_s.pripsc
710	#define c_bteop icrbc_field_s.bteop
711	#define c_bteaddr icrbc_field_s.push_be /* push_be field has 2 names */
712	#define c_benable icrbc_field_s.push_be /* push_be field has 2 names */
713	#define c_suppl icrbc_field_s.suppl
714	#define c_barrop icrbc_field_s.barrop
715	#define c_doresp icrbc_field_s.doresp
716	#define c_gbr icrbc_field_s.gbr
717	#endif /* !__ASSEMBLY__ */
718
719	/*
720	* Fields in CRB Register D
721	*/
722
723	#ifndef __ASSEMBLY__
724	typedef union icrbd_s {
725	__u64 reg_value;
726	struct {
727	__u64 rsvd: 38,
728	toutvld: 1, /* Timeout in progress for this CRB */
729	ctxtvld: 1, /* Context field below is valid */
730	rsvd2: 1,
731	context: 15, /* Bit vector:
732	* Has a bit set for each CRB entry
733	* which needs to be deallocated
734	* before this CRB entry is processed.
735	* Set only for barrier operations.
736	*/
737	timeout: 8; /* Timeout Upper 8 bits */
738	} icrbd_field_s;
739	} icrbd_t;
740
741	#define icrbd_toutvld icrbd_field_s.toutvld
742	#define icrbd_ctxtvld icrbd_field_s.ctxtvld
743	#define icrbd_context icrbd_field_s.context
744
745
746	typedef union hubii_ifdr_u {
747	__u64 hi_ifdr_value;
748	struct {
749	__u64 ifdr_rsvd: 49,
750	ifdr_maxrp: 7,
751	ifdr_rsvd1: 1,
752	ifdr_maxrq: 7;
753	} hi_ifdr_fields;
754	} hubii_ifdr_t;
755
756	#endif /* !__ASSEMBLY__ */
757
758	/*
759	* Hardware designed names for the BTE control registers.
760	*/
761	#define IIO_IBLS_0 0x410000 /* BTE length/status 0 */
762	#define IIO_IBSA_0 0x410008 /* BTE source address 0 */
763	#define IIO_IBDA_0 0x410010 /* BTE destination address 0 */
764	#define IIO_IBCT_0 0x410018 /* BTE control/terminate 0 */
765	#define IIO_IBNA_0 0x410020 /* BTE notification address 0 */
766	#define IIO_IBNR_0 IIO_IBNA_0
767	#define IIO_IBIA_0 0x410028 /* BTE interrupt address 0 */
768
769	#define IIO_IBLS_1 0x420000 /* BTE length/status 1 */
770	#define IIO_IBSA_1 0x420008 /* BTE source address 1 */
771	#define IIO_IBDA_1 0x420010 /* BTE destination address 1 */
772	#define IIO_IBCT_1 0x420018 /* BTE control/terminate 1 */
773	#define IIO_IBNA_1 0x420020 /* BTE notification address 1 */
774	#define IIO_IBNR_1 IIO_IBNA_1
775	#define IIO_IBIA_1 0x420028 /* BTE interrupt address 1 */
776
777	/*
778	* More miscellaneous registers
779	*/
780	#define IIO_IPCR 0x430000 /* Performance Control */
781	#define IIO_IPPR 0x430008 /* Performance Profiling */
782
783	/*
784	* IO Error Clear register bit field definitions
785	*/
786	#define IECLR_BTE1 (1 << 18) /* clear bte error 1 ??? */
787	#define IECLR_BTE0 (1 << 17) /* clear bte error 0 ??? */
788	#define IECLR_CRAZY (1 << 16) /* clear crazy bit in wstat reg */
789	#define IECLR_PRB_F (1 << 15) /* clear err bit in PRB_F reg */
790	#define IECLR_PRB_E (1 << 14) /* clear err bit in PRB_E reg */
791	#define IECLR_PRB_D (1 << 13) /* clear err bit in PRB_D reg */
792	#define IECLR_PRB_C (1 << 12) /* clear err bit in PRB_C reg */
793	#define IECLR_PRB_B (1 << 11) /* clear err bit in PRB_B reg */
794	#define IECLR_PRB_A (1 << 10) /* clear err bit in PRB_A reg */
795	#define IECLR_PRB_9 (1 << 9) /* clear err bit in PRB_9 reg */
796	#define IECLR_PRB_8 (1 << 8) /* clear err bit in PRB_8 reg */
797	#define IECLR_PRB_0 (1 << 0) /* clear err bit in PRB_0 reg */
798
799	/*
800	* IO PIO Read Table Entry format
801	*/
802
803	#ifndef __ASSEMBLY__
804
805	typedef union iprte_a {
806	__u64 entry;
807	struct {
808	__u64 rsvd1 : 7, /* Reserved field */
809	valid : 1, /* Maps to a timeout entry */
810	rsvd2 : 1,
811	srcnode : 9, /* Node which did this PIO */
812	initiator : 2, /* If T5A or T5B or IO */
813	rsvd3 : 3,
814	addr : 38, /* Physical address of PIO */
815	rsvd4 : 3;
816	} iprte_fields;
817	} iprte_a_t;
818
819	#define iprte_valid iprte_fields.valid
820	#define iprte_timeout iprte_fields.timeout
821	#define iprte_srcnode iprte_fields.srcnode
822	#define iprte_init iprte_fields.initiator
823	#define iprte_addr iprte_fields.addr
824
825	#endif /* !__ASSEMBLY__ */
826
827	#define IPRTE_ADDRSHFT 3
828
829	/*
830	* Hub IIO PRB Register format.
831	*/
832
833	#ifndef __ASSEMBLY__
834	/*
835	* Note: Fields bnakctr, anakctr, xtalkctrmode, ovflow fields are
836	* "Status" fields, and should only be used in case of clean up after errors.
837	*/
838
839	typedef union iprb_u {
840	__u64 reg_value;
841	struct {
842	__u64 rsvd1: 15,
843	error: 1, /* Widget rcvd wr resp pkt w/ error */
844	ovflow: 5, /* Over flow count. perf measurement */
845	fire_and_forget: 1, /* Launch Write without response */
846	mode: 2, /* Widget operation Mode */
847	rsvd2: 2,
848	bnakctr: 14,
849	rsvd3: 2,
850	anakctr: 14,
851	xtalkctr: 8;
852	} iprb_fields_s;
853	} iprb_t;
854
855	#define iprb_regval reg_value
856
857	#define iprb_error iprb_fields_s.error
858	#define iprb_ovflow iprb_fields_s.ovflow
859	#define iprb_ff iprb_fields_s.fire_and_forget
860	#define iprb_mode iprb_fields_s.mode
861	#define iprb_bnakctr iprb_fields_s.bnakctr
862	#define iprb_anakctr iprb_fields_s.anakctr
863	#define iprb_xtalkctr iprb_fields_s.xtalkctr
864
865	#endif /* !__ASSEMBLY__ */
866
867	/*
868	* values for mode field in iprb_t.
869	* For details of the meanings of NAK and Accept, refer the PIO flow
870	* document
871	*/
872	#define IPRB_MODE_NORMAL (0)
873	#define IPRB_MODE_COLLECT_A (1) /* PRB in collect A mode */
874	#define IPRB_MODE_SERVICE_A (2) /* NAK B and Accept A */
875	#define IPRB_MODE_SERVICE_B (3) /* NAK A and Accept B */
876
877	/*
878	* IO CRB entry C_A to E_A : Partial (cache) CRBS
879	*/
880	#ifndef __ASSEMBLY__
881	typedef union icrbp_a {
882	__u64 ip_reg; /* the entire register value */
883	struct {
884	__u64 error: 1, /* 63, error occurred */
885	ln_uce: 1, /* 62: uncorrectable memory */
886	ln_ae: 1, /* 61: protection violation */
887	ln_werr:1, /* 60: write access error */
888	ln_aerr:1, /* 59: sn0net: Address error */
889	ln_perr:1, /* 58: sn0net: poison error */
890	timeout:1, /* 57: CRB timed out */
891	l_bdpkt:1, /* 56: truncated pkt on sn0net */
892	c_bdpkt:1, /* 55: truncated pkt on xtalk */
893	c_err: 1, /* 54: incoming xtalk req, err set*/
894	rsvd1: 12, /* 53-42: reserved */
895	valid: 1, /* 41: Valid status */
896	sidn: 4, /* 40-37: SIDN field of xtalk rqst */
897	tnum: 5, /* 36-32: TNUM of xtalk request */
898	bo: 1, /* 31: barrier op set in xtalk rqst*/
899	resprqd:1, /* 30: xtalk rqst requires response*/
900	gbr: 1, /* 29: gbr bit set in xtalk rqst */
901	size: 2, /* 28-27: size of xtalk request */
902	excl: 4, /* 26-23: exclusive bit(s) */
903	stall: 3, /* 22-20: stall (xtalk, bte 0/1) */
904	intvn: 1, /* 19: rqst target of intervention*/
905	resp: 1, /* 18: Data response given to t5 */
906	ack: 1, /* 17: Data ack received. */
907	hold: 1, /* 16: crb gathering invalidate acks*/
908	wb: 1, /* 15: writeback pending. */
909	ack_cnt:11, /* 14-04: counter of invalidate acks*/
910	tscaler:4; /* 03-00: Timeout prescaler */
911	} ip_fmt;
912	} icrbp_a_t;
913
914	#endif /* !__ASSEMBLY__ */
915
916	/*
917	* A couple of defines to go with the above structure.
918	*/
919	#define ICRBP_A_CERR_SHFT 54
920	#define ICRBP_A_ERR_MASK 0x3ff
921
922	#ifndef __ASSEMBLY__
923	typedef union hubii_idsr {
924	__u64 iin_reg;
925	struct {
926	__u64 rsvd1 : 35,
927	isent : 1,
928	rsvd2 : 3,
929	ienable: 1,
930	rsvd : 7,
931	node : 9,
932	rsvd4 : 1,
933	level : 7;
934	} iin_fmt;
935	} hubii_idsr_t;
936	#endif /* !__ASSEMBLY__ */
937
938	/*
939	* IO BTE Length/Status (IIO_IBLS) register bit field definitions
940	*/
941	#define IBLS_BUSY (0x1 << 20)
942	#define IBLS_ERROR_SHFT 16
943	#define IBLS_ERROR (0x1 << IBLS_ERROR_SHFT)
944	#define IBLS_LENGTH_MASK 0xffff
945
946	/*
947	* IO BTE Control/Terminate register (IBCT) register bit field definitions
948	*/
949	#define IBCT_POISON (0x1 << 8)
950	#define IBCT_NOTIFY (0x1 << 4)
951	#define IBCT_ZFIL_MODE (0x1 << 0)
952
953	/*
954	* IO BTE Interrupt Address Register (IBIA) register bit field definitions
955	*/
956	#define IBIA_LEVEL_SHFT 16
957	#define IBIA_LEVEL_MASK (0x7f << IBIA_LEVEL_SHFT)
958	#define IBIA_NODE_ID_SHFT 0
959	#define IBIA_NODE_ID_MASK (0x1ff)
960
961	/*
962	* Miscellaneous hub constants
963	*/
964
965	/* Number of widgets supported by hub */
966	#define HUB_NUM_WIDGET 9
967	#define HUB_WIDGET_ID_MIN 0x8
968	#define HUB_WIDGET_ID_MAX 0xf
969
970	#define HUB_WIDGET_PART_NUM 0xc101
971	#define MAX_HUBS_PER_XBOW 2
972
973	/*
974	* Get a hub's widget id from widget control register
975	*/
976	#define IIO_WCR_WID_GET(nasid) (REMOTE_HUB_L(nasid, III_WCR) & 0xf)
977	#define IIO_WST_ERROR_MASK (UINT64_CAST 1 << 32) /* Widget status error */
978
979	/*
980	* Number of credits Hub widget has while sending req/response to
981	* xbow.
982	* Value of 3 is required by Xbow 1.1
983	* We may be able to increase this to 4 with Xbow 1.2.
984	*/
985	#define HUBII_XBOW_CREDIT 3
986	#define HUBII_XBOW_REV2_CREDIT 4
987
988	#endif /* _ASM_SGI_SN_SN0_HUBIO_H */

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source: svn/trunk/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/asm/sn/sn0/hubio.h

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