ia64/linux-2.6.18-xen.hg

view drivers/char/mbcs.h @ 893:f994bfe9b93b

linux/blktap2: reduce TLB flush scope

c/s 885 added very coarse TLB flushing. Since these flushes always
follow single page updates, single page flushes (when available) are
sufficient.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 04 10:32:57 2009 +0100 (2009-06-04)
parents 831230e53067
children
line source
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 * Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
7 */
9 #ifndef __MBCS_H__
10 #define __MBCS_H__
12 /*
13 * General macros
14 */
15 #define MB (1024*1024)
16 #define MB2 (2*MB)
17 #define MB4 (4*MB)
18 #define MB6 (6*MB)
20 /*
21 * Offsets and masks
22 */
23 #define MBCS_CM_ID 0x0000 /* Identification */
24 #define MBCS_CM_STATUS 0x0008 /* Status */
25 #define MBCS_CM_ERROR_DETAIL1 0x0010 /* Error Detail1 */
26 #define MBCS_CM_ERROR_DETAIL2 0x0018 /* Error Detail2 */
27 #define MBCS_CM_CONTROL 0x0020 /* Control */
28 #define MBCS_CM_REQ_TOUT 0x0028 /* Request Time-out */
29 #define MBCS_CM_ERR_INT_DEST 0x0038 /* Error Interrupt Destination */
30 #define MBCS_CM_TARG_FL 0x0050 /* Target Flush */
31 #define MBCS_CM_ERR_STAT 0x0060 /* Error Status */
32 #define MBCS_CM_CLR_ERR_STAT 0x0068 /* Clear Error Status */
33 #define MBCS_CM_ERR_INT_EN 0x0070 /* Error Interrupt Enable */
34 #define MBCS_RD_DMA_SYS_ADDR 0x0100 /* Read DMA System Address */
35 #define MBCS_RD_DMA_LOC_ADDR 0x0108 /* Read DMA Local Address */
36 #define MBCS_RD_DMA_CTRL 0x0110 /* Read DMA Control */
37 #define MBCS_RD_DMA_AMO_DEST 0x0118 /* Read DMA AMO Destination */
38 #define MBCS_RD_DMA_INT_DEST 0x0120 /* Read DMA Interrupt Destination */
39 #define MBCS_RD_DMA_AUX_STAT 0x0130 /* Read DMA Auxillary Status */
40 #define MBCS_WR_DMA_SYS_ADDR 0x0200 /* Write DMA System Address */
41 #define MBCS_WR_DMA_LOC_ADDR 0x0208 /* Write DMA Local Address */
42 #define MBCS_WR_DMA_CTRL 0x0210 /* Write DMA Control */
43 #define MBCS_WR_DMA_AMO_DEST 0x0218 /* Write DMA AMO Destination */
44 #define MBCS_WR_DMA_INT_DEST 0x0220 /* Write DMA Interrupt Destination */
45 #define MBCS_WR_DMA_AUX_STAT 0x0230 /* Write DMA Auxillary Status */
46 #define MBCS_ALG_AMO_DEST 0x0300 /* Algorithm AMO Destination */
47 #define MBCS_ALG_INT_DEST 0x0308 /* Algorithm Interrupt Destination */
48 #define MBCS_ALG_OFFSETS 0x0310
49 #define MBCS_ALG_STEP 0x0318 /* Algorithm Step */
51 #define MBCS_GSCR_START 0x0000000
52 #define MBCS_DEBUG_START 0x0100000
53 #define MBCS_RAM0_START 0x0200000
54 #define MBCS_RAM1_START 0x0400000
55 #define MBCS_RAM2_START 0x0600000
57 #define MBCS_CM_CONTROL_REQ_TOUT_MASK 0x0000000000ffffffUL
58 //#define PIO_BASE_ADDR_BASE_OFFSET_MASK 0x00fffffffff00000UL
60 #define MBCS_SRAM_SIZE (1024*1024)
61 #define MBCS_CACHELINE_SIZE 128
63 /*
64 * MMR get's and put's
65 */
66 #define MBCS_MMR_ADDR(mmr_base, offset)((uint64_t *)(mmr_base + offset))
67 #define MBCS_MMR_SET(mmr_base, offset, value) { \
68 uint64_t *mbcs_mmr_set_u64p, readback; \
69 mbcs_mmr_set_u64p = (uint64_t *)(mmr_base + offset); \
70 *mbcs_mmr_set_u64p = value; \
71 readback = *mbcs_mmr_set_u64p; \
72 }
73 #define MBCS_MMR_GET(mmr_base, offset) *(uint64_t *)(mmr_base + offset)
74 #define MBCS_MMR_ZERO(mmr_base, offset) MBCS_MMR_SET(mmr_base, offset, 0)
76 /*
77 * MBCS mmr structures
78 */
79 union cm_id {
80 uint64_t cm_id_reg;
81 struct {
82 uint64_t always_one:1, // 0
83 mfg_id:11, // 11:1
84 part_num:16, // 27:12
85 bitstream_rev:8, // 35:28
86 :28; // 63:36
87 };
88 };
90 union cm_status {
91 uint64_t cm_status_reg;
92 struct {
93 uint64_t pending_reads:8, // 7:0
94 pending_writes:8, // 15:8
95 ice_rsp_credits:8, // 23:16
96 ice_req_credits:8, // 31:24
97 cm_req_credits:8, // 39:32
98 :1, // 40
99 rd_dma_in_progress:1, // 41
100 rd_dma_done:1, // 42
101 :1, // 43
102 wr_dma_in_progress:1, // 44
103 wr_dma_done:1, // 45
104 alg_waiting:1, // 46
105 alg_pipe_running:1, // 47
106 alg_done:1, // 48
107 :3, // 51:49
108 pending_int_reqs:8, // 59:52
109 :3, // 62:60
110 alg_half_speed_sel:1; // 63
111 };
112 };
114 union cm_error_detail1 {
115 uint64_t cm_error_detail1_reg;
116 struct {
117 uint64_t packet_type:4, // 3:0
118 source_id:2, // 5:4
119 data_size:2, // 7:6
120 tnum:8, // 15:8
121 byte_enable:8, // 23:16
122 gfx_cred:8, // 31:24
123 read_type:2, // 33:32
124 pio_or_memory:1, // 34
125 head_cw_error:1, // 35
126 :12, // 47:36
127 head_error_bit:1, // 48
128 data_error_bit:1, // 49
129 :13, // 62:50
130 valid:1; // 63
131 };
132 };
134 union cm_error_detail2 {
135 uint64_t cm_error_detail2_reg;
136 struct {
137 uint64_t address:56, // 55:0
138 :8; // 63:56
139 };
140 };
142 union cm_control {
143 uint64_t cm_control_reg;
144 struct {
145 uint64_t cm_id:2, // 1:0
146 :2, // 3:2
147 max_trans:5, // 8:4
148 :3, // 11:9
149 address_mode:1, // 12
150 :7, // 19:13
151 credit_limit:8, // 27:20
152 :5, // 32:28
153 rearm_stat_regs:1, // 33
154 prescalar_byp:1, // 34
155 force_gap_war:1, // 35
156 rd_dma_go:1, // 36
157 wr_dma_go:1, // 37
158 alg_go:1, // 38
159 rd_dma_clr:1, // 39
160 wr_dma_clr:1, // 40
161 alg_clr:1, // 41
162 :2, // 43:42
163 alg_wait_step:1, // 44
164 alg_done_amo_en:1, // 45
165 alg_done_int_en:1, // 46
166 :1, // 47
167 alg_sram0_locked:1, // 48
168 alg_sram1_locked:1, // 49
169 alg_sram2_locked:1, // 50
170 alg_done_clr:1, // 51
171 :12; // 63:52
172 };
173 };
175 union cm_req_timeout {
176 uint64_t cm_req_timeout_reg;
177 struct {
178 uint64_t time_out:24, // 23:0
179 :40; // 63:24
180 };
181 };
183 union intr_dest {
184 uint64_t intr_dest_reg;
185 struct {
186 uint64_t address:56, // 55:0
187 int_vector:8; // 63:56
188 };
189 };
191 union cm_error_status {
192 uint64_t cm_error_status_reg;
193 struct {
194 uint64_t ecc_sbe:1, // 0
195 ecc_mbe:1, // 1
196 unsupported_req:1, // 2
197 unexpected_rsp:1, // 3
198 bad_length:1, // 4
199 bad_datavalid:1, // 5
200 buffer_overflow:1, // 6
201 request_timeout:1, // 7
202 :8, // 15:8
203 head_inv_data_size:1, // 16
204 rsp_pactype_inv:1, // 17
205 head_sb_err:1, // 18
206 missing_head:1, // 19
207 head_inv_rd_type:1, // 20
208 head_cmd_err_bit:1, // 21
209 req_addr_align_inv:1, // 22
210 pio_req_addr_inv:1, // 23
211 req_range_dsize_inv:1, // 24
212 early_term:1, // 25
213 early_tail:1, // 26
214 missing_tail:1, // 27
215 data_flit_sb_err:1, // 28
216 cm2hcm_req_cred_of:1, // 29
217 cm2hcm_rsp_cred_of:1, // 30
218 rx_bad_didn:1, // 31
219 rd_dma_err_rsp:1, // 32
220 rd_dma_tnum_tout:1, // 33
221 rd_dma_multi_tnum_tou:1, // 34
222 wr_dma_err_rsp:1, // 35
223 wr_dma_tnum_tout:1, // 36
224 wr_dma_multi_tnum_tou:1, // 37
225 alg_data_overflow:1, // 38
226 alg_data_underflow:1, // 39
227 ram0_access_conflict:1, // 40
228 ram1_access_conflict:1, // 41
229 ram2_access_conflict:1, // 42
230 ram0_perr:1, // 43
231 ram1_perr:1, // 44
232 ram2_perr:1, // 45
233 int_gen_rsp_err:1, // 46
234 int_gen_tnum_tout:1, // 47
235 rd_dma_prog_err:1, // 48
236 wr_dma_prog_err:1, // 49
237 :14; // 63:50
238 };
239 };
241 union cm_clr_error_status {
242 uint64_t cm_clr_error_status_reg;
243 struct {
244 uint64_t clr_ecc_sbe:1, // 0
245 clr_ecc_mbe:1, // 1
246 clr_unsupported_req:1, // 2
247 clr_unexpected_rsp:1, // 3
248 clr_bad_length:1, // 4
249 clr_bad_datavalid:1, // 5
250 clr_buffer_overflow:1, // 6
251 clr_request_timeout:1, // 7
252 :8, // 15:8
253 clr_head_inv_data_siz:1, // 16
254 clr_rsp_pactype_inv:1, // 17
255 clr_head_sb_err:1, // 18
256 clr_missing_head:1, // 19
257 clr_head_inv_rd_type:1, // 20
258 clr_head_cmd_err_bit:1, // 21
259 clr_req_addr_align_in:1, // 22
260 clr_pio_req_addr_inv:1, // 23
261 clr_req_range_dsize_i:1, // 24
262 clr_early_term:1, // 25
263 clr_early_tail:1, // 26
264 clr_missing_tail:1, // 27
265 clr_data_flit_sb_err:1, // 28
266 clr_cm2hcm_req_cred_o:1, // 29
267 clr_cm2hcm_rsp_cred_o:1, // 30
268 clr_rx_bad_didn:1, // 31
269 clr_rd_dma_err_rsp:1, // 32
270 clr_rd_dma_tnum_tout:1, // 33
271 clr_rd_dma_multi_tnum:1, // 34
272 clr_wr_dma_err_rsp:1, // 35
273 clr_wr_dma_tnum_tout:1, // 36
274 clr_wr_dma_multi_tnum:1, // 37
275 clr_alg_data_overflow:1, // 38
276 clr_alg_data_underflo:1, // 39
277 clr_ram0_access_confl:1, // 40
278 clr_ram1_access_confl:1, // 41
279 clr_ram2_access_confl:1, // 42
280 clr_ram0_perr:1, // 43
281 clr_ram1_perr:1, // 44
282 clr_ram2_perr:1, // 45
283 clr_int_gen_rsp_err:1, // 46
284 clr_int_gen_tnum_tout:1, // 47
285 clr_rd_dma_prog_err:1, // 48
286 clr_wr_dma_prog_err:1, // 49
287 :14; // 63:50
288 };
289 };
291 union cm_error_intr_enable {
292 uint64_t cm_error_intr_enable_reg;
293 struct {
294 uint64_t int_en_ecc_sbe:1, // 0
295 int_en_ecc_mbe:1, // 1
296 int_en_unsupported_re:1, // 2
297 int_en_unexpected_rsp:1, // 3
298 int_en_bad_length:1, // 4
299 int_en_bad_datavalid:1, // 5
300 int_en_buffer_overflo:1, // 6
301 int_en_request_timeou:1, // 7
302 :8, // 15:8
303 int_en_head_inv_data_:1, // 16
304 int_en_rsp_pactype_in:1, // 17
305 int_en_head_sb_err:1, // 18
306 int_en_missing_head:1, // 19
307 int_en_head_inv_rd_ty:1, // 20
308 int_en_head_cmd_err_b:1, // 21
309 int_en_req_addr_align:1, // 22
310 int_en_pio_req_addr_i:1, // 23
311 int_en_req_range_dsiz:1, // 24
312 int_en_early_term:1, // 25
313 int_en_early_tail:1, // 26
314 int_en_missing_tail:1, // 27
315 int_en_data_flit_sb_e:1, // 28
316 int_en_cm2hcm_req_cre:1, // 29
317 int_en_cm2hcm_rsp_cre:1, // 30
318 int_en_rx_bad_didn:1, // 31
319 int_en_rd_dma_err_rsp:1, // 32
320 int_en_rd_dma_tnum_to:1, // 33
321 int_en_rd_dma_multi_t:1, // 34
322 int_en_wr_dma_err_rsp:1, // 35
323 int_en_wr_dma_tnum_to:1, // 36
324 int_en_wr_dma_multi_t:1, // 37
325 int_en_alg_data_overf:1, // 38
326 int_en_alg_data_under:1, // 39
327 int_en_ram0_access_co:1, // 40
328 int_en_ram1_access_co:1, // 41
329 int_en_ram2_access_co:1, // 42
330 int_en_ram0_perr:1, // 43
331 int_en_ram1_perr:1, // 44
332 int_en_ram2_perr:1, // 45
333 int_en_int_gen_rsp_er:1, // 46
334 int_en_int_gen_tnum_t:1, // 47
335 int_en_rd_dma_prog_er:1, // 48
336 int_en_wr_dma_prog_er:1, // 49
337 :14; // 63:50
338 };
339 };
341 struct cm_mmr {
342 union cm_id id;
343 union cm_status status;
344 union cm_error_detail1 err_detail1;
345 union cm_error_detail2 err_detail2;
346 union cm_control control;
347 union cm_req_timeout req_timeout;
348 uint64_t reserved1[1];
349 union intr_dest int_dest;
350 uint64_t reserved2[2];
351 uint64_t targ_flush;
352 uint64_t reserved3[1];
353 union cm_error_status err_status;
354 union cm_clr_error_status clr_err_status;
355 union cm_error_intr_enable int_enable;
356 };
358 union dma_hostaddr {
359 uint64_t dma_hostaddr_reg;
360 struct {
361 uint64_t dma_sys_addr:56, // 55:0
362 :8; // 63:56
363 };
364 };
366 union dma_localaddr {
367 uint64_t dma_localaddr_reg;
368 struct {
369 uint64_t dma_ram_addr:21, // 20:0
370 dma_ram_sel:2, // 22:21
371 :41; // 63:23
372 };
373 };
375 union dma_control {
376 uint64_t dma_control_reg;
377 struct {
378 uint64_t dma_op_length:16, // 15:0
379 :18, // 33:16
380 done_amo_en:1, // 34
381 done_int_en:1, // 35
382 :1, // 36
383 pio_mem_n:1, // 37
384 :26; // 63:38
385 };
386 };
388 union dma_amo_dest {
389 uint64_t dma_amo_dest_reg;
390 struct {
391 uint64_t dma_amo_sys_addr:56, // 55:0
392 dma_amo_mod_type:3, // 58:56
393 :5; // 63:59
394 };
395 };
397 union rdma_aux_status {
398 uint64_t rdma_aux_status_reg;
399 struct {
400 uint64_t op_num_pacs_left:17, // 16:0
401 :5, // 21:17
402 lrsp_buff_empty:1, // 22
403 :17, // 39:23
404 pending_reqs_left:6, // 45:40
405 :18; // 63:46
406 };
407 };
409 struct rdma_mmr {
410 union dma_hostaddr host_addr;
411 union dma_localaddr local_addr;
412 union dma_control control;
413 union dma_amo_dest amo_dest;
414 union intr_dest intr_dest;
415 union rdma_aux_status aux_status;
416 };
418 union wdma_aux_status {
419 uint64_t wdma_aux_status_reg;
420 struct {
421 uint64_t op_num_pacs_left:17, // 16:0
422 :4, // 20:17
423 lreq_buff_empty:1, // 21
424 :18, // 39:22
425 pending_reqs_left:6, // 45:40
426 :18; // 63:46
427 };
428 };
430 struct wdma_mmr {
431 union dma_hostaddr host_addr;
432 union dma_localaddr local_addr;
433 union dma_control control;
434 union dma_amo_dest amo_dest;
435 union intr_dest intr_dest;
436 union wdma_aux_status aux_status;
437 };
439 union algo_step {
440 uint64_t algo_step_reg;
441 struct {
442 uint64_t alg_step_cnt:16, // 15:0
443 :48; // 63:16
444 };
445 };
447 struct algo_mmr {
448 union dma_amo_dest amo_dest;
449 union intr_dest intr_dest;
450 union {
451 uint64_t algo_offset_reg;
452 struct {
453 uint64_t sram0_offset:7, // 6:0
454 reserved0:1, // 7
455 sram1_offset:7, // 14:8
456 reserved1:1, // 15
457 sram2_offset:7, // 22:16
458 reserved2:14; // 63:23
459 };
460 } sram_offset;
461 union algo_step step;
462 };
464 struct mbcs_mmr {
465 struct cm_mmr cm;
466 uint64_t reserved1[17];
467 struct rdma_mmr rdDma;
468 uint64_t reserved2[25];
469 struct wdma_mmr wrDma;
470 uint64_t reserved3[25];
471 struct algo_mmr algo;
472 uint64_t reserved4[156];
473 };
475 /*
476 * defines
477 */
478 #define DEVICE_NAME "mbcs"
479 #define MBCS_PART_NUM 0xfff0
480 #define MBCS_PART_NUM_ALG0 0xf001
481 #define MBCS_MFG_NUM 0x1
483 struct algoblock {
484 uint64_t amoHostDest;
485 uint64_t amoModType;
486 uint64_t intrHostDest;
487 uint64_t intrVector;
488 uint64_t algoStepCount;
489 };
491 struct getdma {
492 uint64_t hostAddr;
493 uint64_t localAddr;
494 uint64_t bytes;
495 uint64_t DoneAmoEnable;
496 uint64_t DoneIntEnable;
497 uint64_t peerIO;
498 uint64_t amoHostDest;
499 uint64_t amoModType;
500 uint64_t intrHostDest;
501 uint64_t intrVector;
502 };
504 struct putdma {
505 uint64_t hostAddr;
506 uint64_t localAddr;
507 uint64_t bytes;
508 uint64_t DoneAmoEnable;
509 uint64_t DoneIntEnable;
510 uint64_t peerIO;
511 uint64_t amoHostDest;
512 uint64_t amoModType;
513 uint64_t intrHostDest;
514 uint64_t intrVector;
515 };
517 struct mbcs_soft {
518 struct list_head list;
519 struct cx_dev *cxdev;
520 int major;
521 int nasid;
522 void *mmr_base;
523 wait_queue_head_t dmawrite_queue;
524 wait_queue_head_t dmaread_queue;
525 wait_queue_head_t algo_queue;
526 struct sn_irq_info *get_sn_irq;
527 struct sn_irq_info *put_sn_irq;
528 struct sn_irq_info *algo_sn_irq;
529 struct getdma getdma;
530 struct putdma putdma;
531 struct algoblock algo;
532 uint64_t gscr_addr; // pio addr
533 uint64_t ram0_addr; // pio addr
534 uint64_t ram1_addr; // pio addr
535 uint64_t ram2_addr; // pio addr
536 uint64_t debug_addr; // pio addr
537 atomic_t dmawrite_done;
538 atomic_t dmaread_done;
539 atomic_t algo_done;
540 struct semaphore dmawritelock;
541 struct semaphore dmareadlock;
542 struct semaphore algolock;
543 };
545 extern int mbcs_open(struct inode *ip, struct file *fp);
546 extern ssize_t mbcs_sram_read(struct file *fp, char __user *buf, size_t len,
547 loff_t * off);
548 extern ssize_t mbcs_sram_write(struct file *fp, const char __user *buf, size_t len,
549 loff_t * off);
550 extern loff_t mbcs_sram_llseek(struct file *filp, loff_t off, int whence);
551 extern int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma);
553 #endif // __MBCS_H__