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1
2/* low-level asm for "intrigue" (PA8500-8700 CPU perf counters)
3 *
4 * Copyright (C) 2001 Randolph Chung <tausq at parisc-linux.org>
5 * Copyright (C) 2001 Hewlett-Packard (Grant Grundler)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <linux/config.h>
23#include <asm/assembly.h>
24
25#ifdef CONFIG_64BIT
26 .level 2.0w
27#endif /* CONFIG_64BIT */
28
29#define MTDIAG_1(gr) .word 0x14201840 + gr*0x10000
30#define MTDIAG_2(gr) .word 0x14401840 + gr*0x10000
31#define MFDIAG_1(gr) .word 0x142008A0 + gr
32#define MFDIAG_2(gr) .word 0x144008A0 + gr
33#define STDIAG(dr) .word 0x14000AA0 + dr*0x200000
34#define SFDIAG(dr) .word 0x14000BA0 + dr*0x200000
35#define DR2_SLOW_RET 53
36
37
38;
39; Enable the performance counters
40;
41; The coprocessor only needs to be enabled when
42; starting/stopping the coprocessor with the pmenb/pmdis.
43;
44 .text
45 .align 32
46
47 .export perf_intrigue_enable_perf_counters,code
48perf_intrigue_enable_perf_counters:
49 .proc
50 .callinfo frame=0,NO_CALLS
51 .entry
52
53 ldi 0x20,%r25 ; load up perfmon bit
54 mfctl ccr,%r26 ; get coprocessor register
55 or %r25,%r26,%r26 ; set bit
56 mtctl %r26,ccr ; turn on performance coprocessor
57 pmenb ; enable performance monitor
58 ssm 0,0 ; dummy op to ensure completion
59 sync ; follow ERS
60 andcm %r26,%r25,%r26 ; clear bit now
61 mtctl %r26,ccr ; turn off performance coprocessor
62 nop ; NOPs as specified in ERS
63 nop
64 nop
65 nop
66 nop
67 nop
68 nop
69 bve (%r2)
70 nop
71 .exit
72 .procend
73
74 .export perf_intrigue_disable_perf_counters,code
75perf_intrigue_disable_perf_counters:
76 .proc
77 .callinfo frame=0,NO_CALLS
78 .entry
79 ldi 0x20,%r25 ; load up perfmon bit
80 mfctl ccr,%r26 ; get coprocessor register
81 or %r25,%r26,%r26 ; set bit
82 mtctl %r26,ccr ; turn on performance coprocessor
83 pmdis ; disable performance monitor
84 ssm 0,0 ; dummy op to ensure completion
85 andcm %r26,%r25,%r26 ; clear bit now
86 bve (%r2)
87 mtctl %r26,ccr ; turn off performance coprocessor
88 .exit
89 .procend
90
91;***********************************************************************
92;*
93;* Name: perf_rdr_shift_in_W
94;*
95;* Description:
96;* This routine shifts data in from the RDR in arg0 and returns
97;* the result in ret0. If the RDR is <= 64 bits in length, it
98;* is shifted shifted backup immediately. This is to compensate
99;* for RDR10 which has bits that preclude PDC stack operations
100;* when they are in the wrong state.
101;*
102;* Arguments:
103;* arg0 : rdr to be read
104;* arg1 : bit length of rdr
105;*
106;* Returns:
107;* ret0 = next 64 bits of rdr data from staging register
108;*
109;* Register usage:
110;* arg0 : rdr to be read
111;* arg1 : bit length of rdr
112;* %r24 - original DR2 value
113;* %r1 - scratch
114;* %r29 - scratch
115;*
116;* Returns:
117;* ret0 = RDR data (right justified)
118;*
119;***********************************************************************
120
121 .export perf_rdr_shift_in_W,code
122perf_rdr_shift_in_W:
123 .proc
124 .callinfo frame=0,NO_CALLS
125 .entry
126;
127; read(shift in) the RDR.
128;
129
130; NOTE: The PCX-W ERS states that DR2_SLOW_RET must be set before any
131; shifting is done, from or to, remote diagnose registers.
132;
133
134 depdi,z 1,DR2_SLOW_RET,1,%r29
135 MFDIAG_2 (24)
136 or %r24,%r29,%r29
137 MTDIAG_2 (29) ; set DR2_SLOW_RET
138
139 nop
140 nop
141 nop
142 nop
143
144;
145; Cacheline start (32-byte cacheline)
146;
147 nop
148 nop
149 nop
150 extrd,u arg1,63,6,%r1 ; setup shift amount by bits to move
151
152 mtsar %r1
153 shladd arg0,2,%r0,%r1 ; %r1 = 4 * RDR number
154 blr %r1,%r0 ; branch to 8-instruction sequence
155 nop
156
157;
158; Cacheline start (32-byte cacheline)
159;
160
161 ;
162 ; RDR 0 sequence
163 ;
164 SFDIAG (0)
165 ssm 0,0
166 MFDIAG_1 (28)
167 shrpd ret0,%r0,%sar,%r1
168 MTDIAG_1 (1) ; mtdiag %dr1, %r1
169 STDIAG (0)
170 ssm 0,0
171 b,n perf_rdr_shift_in_W_leave
172
173 ;
174 ; RDR 1 sequence
175 ;
176 sync
177 ssm 0,0
178 SFDIAG (1)
179 ssm 0,0
180 MFDIAG_1 (28)
181 ssm 0,0
182 b,n perf_rdr_shift_in_W_leave
183 nop
184
185 ;
186 ; RDR 2 read sequence
187 ;
188 SFDIAG (2)
189 ssm 0,0
190 MFDIAG_1 (28)
191 shrpd ret0,%r0,%sar,%r1
192 MTDIAG_1 (1)
193 STDIAG (2)
194 ssm 0,0
195 b,n perf_rdr_shift_in_W_leave
196
197 ;
198 ; RDR 3 read sequence
199 ;
200 b,n perf_rdr_shift_in_W_leave
201 nop
202 nop
203 nop
204 nop
205 nop
206 nop
207 nop
208
209 ;
210 ; RDR 4 read sequence
211 ;
212 sync
213 ssm 0,0
214 SFDIAG (4)
215 ssm 0,0
216 MFDIAG_1 (28)
217 b,n perf_rdr_shift_in_W_leave
218 ssm 0,0
219 nop
220
221 ;
222 ; RDR 5 read sequence
223 ;
224 sync
225 ssm 0,0
226 SFDIAG (5)
227 ssm 0,0
228 MFDIAG_1 (28)
229 b,n perf_rdr_shift_in_W_leave
230 ssm 0,0
231 nop
232
233 ;
234 ; RDR 6 read sequence
235 ;
236 sync
237 ssm 0,0
238 SFDIAG (6)
239 ssm 0,0
240 MFDIAG_1 (28)
241 b,n perf_rdr_shift_in_W_leave
242 ssm 0,0
243 nop
244
245 ;
246 ; RDR 7 read sequence
247 ;
248 b,n perf_rdr_shift_in_W_leave
249 nop
250 nop
251 nop
252 nop
253 nop
254 nop
255 nop
256
257 ;
258 ; RDR 8 read sequence
259 ;
260 b,n perf_rdr_shift_in_W_leave
261 nop
262 nop
263 nop
264 nop
265 nop
266 nop
267 nop
268
269 ;
270 ; RDR 9 read sequence
271 ;
272 b,n perf_rdr_shift_in_W_leave
273 nop
274 nop
275 nop
276 nop
277 nop
278 nop
279 nop
280
281 ;
282 ; RDR 10 read sequence
283 ;
284 SFDIAG (10)
285 ssm 0,0
286 MFDIAG_1 (28)
287 shrpd ret0,%r0,%sar,%r1
288 MTDIAG_1 (1)
289 STDIAG (10)
290 ssm 0,0
291 b,n perf_rdr_shift_in_W_leave
292
293 ;
294 ; RDR 11 read sequence
295 ;
296 SFDIAG (11)
297 ssm 0,0
298 MFDIAG_1 (28)
299 shrpd ret0,%r0,%sar,%r1
300 MTDIAG_1 (1)
301 STDIAG (11)
302 ssm 0,0
303 b,n perf_rdr_shift_in_W_leave
304
305 ;
306 ; RDR 12 read sequence
307 ;
308 b,n perf_rdr_shift_in_W_leave
309 nop
310 nop
311 nop
312 nop
313 nop
314 nop
315 nop
316
317 ;
318 ; RDR 13 read sequence
319 ;
320 sync
321 ssm 0,0
322 SFDIAG (13)
323 ssm 0,0
324 MFDIAG_1 (28)
325 b,n perf_rdr_shift_in_W_leave
326 ssm 0,0
327 nop
328
329 ;
330 ; RDR 14 read sequence
331 ;
332 SFDIAG (14)
333 ssm 0,0
334 MFDIAG_1 (28)
335 shrpd ret0,%r0,%sar,%r1
336 MTDIAG_1 (1)
337 STDIAG (14)
338 ssm 0,0
339 b,n perf_rdr_shift_in_W_leave
340
341 ;
342 ; RDR 15 read sequence
343 ;
344 sync
345 ssm 0,0
346 SFDIAG (15)
347 ssm 0,0
348 MFDIAG_1 (28)
349 ssm 0,0
350 b,n perf_rdr_shift_in_W_leave
351 nop
352
353 ;
354 ; RDR 16 read sequence
355 ;
356 sync
357 ssm 0,0
358 SFDIAG (16)
359 ssm 0,0
360 MFDIAG_1 (28)
361 b,n perf_rdr_shift_in_W_leave
362 ssm 0,0
363 nop
364
365 ;
366 ; RDR 17 read sequence
367 ;
368 SFDIAG (17)
369 ssm 0,0
370 MFDIAG_1 (28)
371 shrpd ret0,%r0,%sar,%r1
372 MTDIAG_1 (1)
373 STDIAG (17)
374 ssm 0,0
375 b,n perf_rdr_shift_in_W_leave
376
377 ;
378 ; RDR 18 read sequence
379 ;
380 SFDIAG (18)
381 ssm 0,0
382 MFDIAG_1 (28)
383 shrpd ret0,%r0,%sar,%r1
384 MTDIAG_1 (1)
385 STDIAG (18)
386 ssm 0,0
387 b,n perf_rdr_shift_in_W_leave
388
389 ;
390 ; RDR 19 read sequence
391 ;
392 b,n perf_rdr_shift_in_W_leave
393 nop
394 nop
395 nop
396 nop
397 nop
398 nop
399 nop
400
401 ;
402 ; RDR 20 read sequence
403 ;
404 sync
405 ssm 0,0
406 SFDIAG (20)
407 ssm 0,0
408 MFDIAG_1 (28)
409 b,n perf_rdr_shift_in_W_leave
410 ssm 0,0
411 nop
412
413 ;
414 ; RDR 21 read sequence
415 ;
416 sync
417 ssm 0,0
418 SFDIAG (21)
419 ssm 0,0
420 MFDIAG_1 (28)
421 b,n perf_rdr_shift_in_W_leave
422 ssm 0,0
423 nop
424
425 ;
426 ; RDR 22 read sequence
427 ;
428 sync
429 ssm 0,0
430 SFDIAG (22)
431 ssm 0,0
432 MFDIAG_1 (28)
433 b,n perf_rdr_shift_in_W_leave
434 ssm 0,0
435 nop
436
437 ;
438 ; RDR 23 read sequence
439 ;
440 sync
441 ssm 0,0
442 SFDIAG (23)
443 ssm 0,0
444 MFDIAG_1 (28)
445 b,n perf_rdr_shift_in_W_leave
446 ssm 0,0
447 nop
448
449 ;
450 ; RDR 24 read sequence
451 ;
452 sync
453 ssm 0,0
454 SFDIAG (24)
455 ssm 0,0
456 MFDIAG_1 (28)
457 b,n perf_rdr_shift_in_W_leave
458 ssm 0,0
459 nop
460
461 ;
462 ; RDR 25 read sequence
463 ;
464 sync
465 ssm 0,0
466 SFDIAG (25)
467 ssm 0,0
468 MFDIAG_1 (28)
469 b,n perf_rdr_shift_in_W_leave
470 ssm 0,0
471 nop
472
473 ;
474 ; RDR 26 read sequence
475 ;
476 SFDIAG (26)
477 ssm 0,0
478 MFDIAG_1 (28)
479 shrpd ret0,%r0,%sar,%r1
480 MTDIAG_1 (1)
481 STDIAG (26)
482 ssm 0,0
483 b,n perf_rdr_shift_in_W_leave
484
485 ;
486 ; RDR 27 read sequence
487 ;
488 SFDIAG (27)
489 ssm 0,0
490 MFDIAG_1 (28)
491 shrpd ret0,%r0,%sar,%r1
492 MTDIAG_1 (1)
493 STDIAG (27)
494 ssm 0,0
495 b,n perf_rdr_shift_in_W_leave
496
497 ;
498 ; RDR 28 read sequence
499 ;
500 sync
501 ssm 0,0
502 SFDIAG (28)
503 ssm 0,0
504 MFDIAG_1 (28)
505 b,n perf_rdr_shift_in_W_leave
506 ssm 0,0
507 nop
508
509 ;
510 ; RDR 29 read sequence
511 ;
512 sync
513 ssm 0,0
514 SFDIAG (29)
515 ssm 0,0
516 MFDIAG_1 (28)
517 b,n perf_rdr_shift_in_W_leave
518 ssm 0,0
519 nop
520
521 ;
522 ; RDR 30 read sequence
523 ;
524 SFDIAG (30)
525 ssm 0,0
526 MFDIAG_1 (28)
527 shrpd ret0,%r0,%sar,%r1
528 MTDIAG_1 (1)
529 STDIAG (30)
530 ssm 0,0
531 b,n perf_rdr_shift_in_W_leave
532
533 ;
534 ; RDR 31 read sequence
535 ;
536 sync
537 ssm 0,0
538 SFDIAG (31)
539 ssm 0,0
540 MFDIAG_1 (28)
541 nop
542 ssm 0,0
543 nop
544
545 ;
546 ; Fallthrough
547 ;
548
549perf_rdr_shift_in_W_leave:
550 bve (%r2)
551 .exit
552 MTDIAG_2 (24) ; restore DR2
553 .procend
554
555
556;***********************************************************************
557;*
558;* Name: perf_rdr_shift_out_W
559;*
560;* Description:
561;* This routine moves data to the RDR's. The double-word that
562;* arg1 points to is loaded and moved into the staging register.
563;* Then the STDIAG instruction for the RDR # in arg0 is called
564;* to move the data to the RDR.
565;*
566;* Arguments:
567;* arg0 = rdr number
568;* arg1 = 64-bit value to write
569;* %r24 - DR2 | DR2_SLOW_RET
570;* %r23 - original DR2 value
571;*
572;* Returns:
573;* None
574;*
575;* Register usage:
576;*
577;***********************************************************************
578
579 .export perf_rdr_shift_out_W,code
580perf_rdr_shift_out_W:
581 .proc
582 .callinfo frame=0,NO_CALLS
583 .entry
584;
585; NOTE: The PCX-W ERS states that DR2_SLOW_RET must be set before any
586; shifting is done, from or to, the remote diagnose registers.
587;
588
589 depdi,z 1,DR2_SLOW_RET,1,%r24
590 MFDIAG_2 (23)
591 or %r24,%r23,%r24
592 MTDIAG_2 (24) ; set DR2_SLOW_RET
593 MTDIAG_1 (25) ; data to the staging register
594 shladd arg0,2,%r0,%r1 ; %r1 = 4 * RDR number
595 blr %r1,%r0 ; branch to 8-instruction sequence
596 nop
597
598 ;
599 ; RDR 0 write sequence
600 ;
601 sync ; RDR 0 write sequence
602 ssm 0,0
603 STDIAG (0)
604 ssm 0,0
605 b,n perf_rdr_shift_out_W_leave
606 nop
607 ssm 0,0
608 nop
609
610 ;
611 ; RDR 1 write sequence
612 ;
613 sync
614 ssm 0,0
615 STDIAG (1)
616 ssm 0,0
617 b,n perf_rdr_shift_out_W_leave
618 nop
619 ssm 0,0
620 nop
621
622 ;
623 ; RDR 2 write sequence
624 ;
625 sync
626 ssm 0,0
627 STDIAG (2)
628 ssm 0,0
629 b,n perf_rdr_shift_out_W_leave
630 nop
631 ssm 0,0
632 nop
633
634 ;
635 ; RDR 3 write sequence
636 ;
637 sync
638 ssm 0,0
639 STDIAG (3)
640 ssm 0,0
641 b,n perf_rdr_shift_out_W_leave
642 nop
643 ssm 0,0
644 nop
645
646 ;
647 ; RDR 4 write sequence
648 ;
649 sync
650 ssm 0,0
651 STDIAG (4)
652 ssm 0,0
653 b,n perf_rdr_shift_out_W_leave
654 nop
655 ssm 0,0
656 nop
657
658 ;
659 ; RDR 5 write sequence
660 ;
661 sync
662 ssm 0,0
663 STDIAG (5)
664 ssm 0,0
665 b,n perf_rdr_shift_out_W_leave
666 nop
667 ssm 0,0
668 nop
669
670 ;
671 ; RDR 6 write sequence
672 ;
673 sync
674 ssm 0,0
675 STDIAG (6)
676 ssm 0,0
677 b,n perf_rdr_shift_out_W_leave
678 nop
679 ssm 0,0
680 nop
681
682 ;
683 ; RDR 7 write sequence
684 ;
685 sync
686 ssm 0,0
687 STDIAG (7)
688 ssm 0,0
689 b,n perf_rdr_shift_out_W_leave
690 nop
691 ssm 0,0
692 nop
693
694 ;
695 ; RDR 8 write sequence
696 ;
697 sync
698 ssm 0,0
699 STDIAG (8)
700 ssm 0,0
701 b,n perf_rdr_shift_out_W_leave
702 nop
703 ssm 0,0
704 nop
705
706 ;
707 ; RDR 9 write sequence
708 ;
709 sync
710 ssm 0,0
711 STDIAG (9)
712 ssm 0,0
713 b,n perf_rdr_shift_out_W_leave
714 nop
715 ssm 0,0
716 nop
717
718 ;
719 ; RDR 10 write sequence
720 ;
721 sync
722 ssm 0,0
723 STDIAG (10)
724 STDIAG (26)
725 ssm 0,0
726 b,n perf_rdr_shift_out_W_leave
727 ssm 0,0
728 nop
729
730 ;
731 ; RDR 11 write sequence
732 ;
733 sync
734 ssm 0,0
735 STDIAG (11)
736 STDIAG (27)
737 ssm 0,0
738 b,n perf_rdr_shift_out_W_leave
739 ssm 0,0
740 nop
741
742 ;
743 ; RDR 12 write sequence
744 ;
745 sync
746 ssm 0,0
747 STDIAG (12)
748 ssm 0,0
749 b,n perf_rdr_shift_out_W_leave
750 nop
751 ssm 0,0
752 nop
753
754 ;
755 ; RDR 13 write sequence
756 ;
757 sync
758 ssm 0,0
759 STDIAG (13)
760 ssm 0,0
761 b,n perf_rdr_shift_out_W_leave
762 nop
763 ssm 0,0
764 nop
765
766 ;
767 ; RDR 14 write sequence
768 ;
769 sync
770 ssm 0,0
771 STDIAG (14)
772 ssm 0,0
773 b,n perf_rdr_shift_out_W_leave
774 nop
775 ssm 0,0
776 nop
777
778 ;
779 ; RDR 15 write sequence
780 ;
781 sync
782 ssm 0,0
783 STDIAG (15)
784 ssm 0,0
785 b,n perf_rdr_shift_out_W_leave
786 nop
787 ssm 0,0
788 nop
789
790 ;
791 ; RDR 16 write sequence
792 ;
793 sync
794 ssm 0,0
795 STDIAG (16)
796 ssm 0,0
797 b,n perf_rdr_shift_out_W_leave
798 nop
799 ssm 0,0
800 nop
801
802 ;
803 ; RDR 17 write sequence
804 ;
805 sync
806 ssm 0,0
807 STDIAG (17)
808 ssm 0,0
809 b,n perf_rdr_shift_out_W_leave
810 nop
811 ssm 0,0
812 nop
813
814 ;
815 ; RDR 18 write sequence
816 ;
817 sync
818 ssm 0,0
819 STDIAG (18)
820 ssm 0,0
821 b,n perf_rdr_shift_out_W_leave
822 nop
823 ssm 0,0
824 nop
825
826 ;
827 ; RDR 19 write sequence
828 ;
829 sync
830 ssm 0,0
831 STDIAG (19)
832 ssm 0,0
833 b,n perf_rdr_shift_out_W_leave
834 nop
835 ssm 0,0
836 nop
837
838 ;
839 ; RDR 20 write sequence
840 ;
841 sync
842 ssm 0,0
843 STDIAG (20)
844 ssm 0,0
845 b,n perf_rdr_shift_out_W_leave
846 nop
847 ssm 0,0
848 nop
849
850 ;
851 ; RDR 21 write sequence
852 ;
853 sync
854 ssm 0,0
855 STDIAG (21)
856 ssm 0,0
857 b,n perf_rdr_shift_out_W_leave
858 nop
859 ssm 0,0
860 nop
861
862 ;
863 ; RDR 22 write sequence
864 ;
865 sync
866 ssm 0,0
867 STDIAG (22)
868 ssm 0,0
869 b,n perf_rdr_shift_out_W_leave
870 nop
871 ssm 0,0
872 nop
873
874 ;
875 ; RDR 23 write sequence
876 ;
877 sync
878 ssm 0,0
879 STDIAG (23)
880 ssm 0,0
881 b,n perf_rdr_shift_out_W_leave
882 nop
883 ssm 0,0
884 nop
885
886 ;
887 ; RDR 24 write sequence
888 ;
889 sync
890 ssm 0,0
891 STDIAG (24)
892 ssm 0,0
893 b,n perf_rdr_shift_out_W_leave
894 nop
895 ssm 0,0
896 nop
897
898 ;
899 ; RDR 25 write sequence
900 ;
901 sync
902 ssm 0,0
903 STDIAG (25)
904 ssm 0,0
905 b,n perf_rdr_shift_out_W_leave
906 nop
907 ssm 0,0
908 nop
909
910 ;
911 ; RDR 26 write sequence
912 ;
913 sync
914 ssm 0,0
915 STDIAG (10)
916 STDIAG (26)
917 ssm 0,0
918 b,n perf_rdr_shift_out_W_leave
919 ssm 0,0
920 nop
921
922 ;
923 ; RDR 27 write sequence
924 ;
925 sync
926 ssm 0,0
927 STDIAG (11)
928 STDIAG (27)
929 ssm 0,0
930 b,n perf_rdr_shift_out_W_leave
931 ssm 0,0
932 nop
933
934 ;
935 ; RDR 28 write sequence
936 ;
937 sync
938 ssm 0,0
939 STDIAG (28)
940 ssm 0,0
941 b,n perf_rdr_shift_out_W_leave
942 nop
943 ssm 0,0
944 nop
945
946 ;
947 ; RDR 29 write sequence
948 ;
949 sync
950 ssm 0,0
951 STDIAG (29)
952 ssm 0,0
953 b,n perf_rdr_shift_out_W_leave
954 nop
955 ssm 0,0
956 nop
957
958 ;
959 ; RDR 30 write sequence
960 ;
961 sync
962 ssm 0,0
963 STDIAG (30)
964 ssm 0,0
965 b,n perf_rdr_shift_out_W_leave
966 nop
967 ssm 0,0
968 nop
969
970 ;
971 ; RDR 31 write sequence
972 ;
973 sync
974 ssm 0,0
975 STDIAG (31)
976 ssm 0,0
977 b,n perf_rdr_shift_out_W_leave
978 nop
979 ssm 0,0
980 nop
981
982perf_rdr_shift_out_W_leave:
983 bve (%r2)
984 .exit
985 MTDIAG_2 (23) ; restore DR2
986 .procend
987
988
989;***********************************************************************
990;*
991;* Name: rdr_shift_in_U
992;*
993;* Description:
994;* This routine shifts data in from the RDR in arg0 and returns
995;* the result in ret0. If the RDR is <= 64 bits in length, it
996;* is shifted shifted backup immediately. This is to compensate
997;* for RDR10 which has bits that preclude PDC stack operations
998;* when they are in the wrong state.
999;*
1000;* Arguments:
1001;* arg0 : rdr to be read
1002;* arg1 : bit length of rdr
1003;*
1004;* Returns:
1005;* ret0 = next 64 bits of rdr data from staging register
1006;*
1007;* Register usage:
1008;* arg0 : rdr to be read
1009;* arg1 : bit length of rdr
1010;* %r24 - original DR2 value
1011;* %r23 - DR2 | DR2_SLOW_RET
1012;* %r1 - scratch
1013;*
1014;***********************************************************************
1015
1016 .export perf_rdr_shift_in_U,code
1017perf_rdr_shift_in_U:
1018 .proc
1019 .callinfo frame=0,NO_CALLS
1020 .entry
1021
1022; read(shift in) the RDR.
1023;
1024; NOTE: The PCX-U ERS states that DR2_SLOW_RET must be set before any
1025; shifting is done, from or to, remote diagnose registers.
1026
1027 depdi,z 1,DR2_SLOW_RET,1,%r29
1028 MFDIAG_2 (24)
1029 or %r24,%r29,%r29
1030 MTDIAG_2 (29) ; set DR2_SLOW_RET
1031
1032 nop
1033 nop
1034 nop
1035 nop
1036
1037;
1038; Start of next 32-byte cacheline
1039;
1040 nop
1041 nop
1042 nop
1043 extrd,u arg1,63,6,%r1
1044
1045 mtsar %r1
1046 shladd arg0,2,%r0,%r1 ; %r1 = 4 * RDR number
1047 blr %r1,%r0 ; branch to 8-instruction sequence
1048 nop
1049
1050;
1051; Start of next 32-byte cacheline
1052;
1053 SFDIAG (0) ; RDR 0 read sequence
1054 ssm 0,0
1055 MFDIAG_1 (28)
1056 shrpd ret0,%r0,%sar,%r1
1057 MTDIAG_1 (1)
1058 STDIAG (0)
1059 ssm 0,0
1060 b,n perf_rdr_shift_in_U_leave
1061
1062 SFDIAG (1) ; RDR 1 read sequence
1063 ssm 0,0
1064 MFDIAG_1 (28)
1065 shrpd ret0,%r0,%sar,%r1
1066 MTDIAG_1 (1)
1067 STDIAG (1)
1068 ssm 0,0
1069 b,n perf_rdr_shift_in_U_leave
1070
1071 sync ; RDR 2 read sequence
1072 ssm 0,0
1073 SFDIAG (4)
1074 ssm 0,0
1075 MFDIAG_1 (28)
1076 b,n perf_rdr_shift_in_U_leave
1077 ssm 0,0
1078 nop
1079
1080 sync ; RDR 3 read sequence
1081 ssm 0,0
1082 SFDIAG (3)
1083 ssm 0,0
1084 MFDIAG_1 (28)
1085 b,n perf_rdr_shift_in_U_leave
1086 ssm 0,0
1087 nop
1088
1089 sync ; RDR 4 read sequence
1090 ssm 0,0
1091 SFDIAG (4)
1092 ssm 0,0
1093 MFDIAG_1 (28)
1094 b,n perf_rdr_shift_in_U_leave
1095 ssm 0,0
1096 nop
1097
1098 sync ; RDR 5 read sequence
1099 ssm 0,0
1100 SFDIAG (5)
1101 ssm 0,0
1102 MFDIAG_1 (28)
1103 b,n perf_rdr_shift_in_U_leave
1104 ssm 0,0
1105 nop
1106
1107 sync ; RDR 6 read sequence
1108 ssm 0,0
1109 SFDIAG (6)
1110 ssm 0,0
1111 MFDIAG_1 (28)
1112 b,n perf_rdr_shift_in_U_leave
1113 ssm 0,0
1114 nop
1115
1116 sync ; RDR 7 read sequence
1117 ssm 0,0
1118 SFDIAG (7)
1119 ssm 0,0
1120 MFDIAG_1 (28)
1121 b,n perf_rdr_shift_in_U_leave
1122 ssm 0,0
1123 nop
1124
1125 b,n perf_rdr_shift_in_U_leave
1126 nop
1127 nop
1128 nop
1129 nop
1130 nop
1131 nop
1132 nop
1133
1134 SFDIAG (9) ; RDR 9 read sequence
1135 ssm 0,0
1136 MFDIAG_1 (28)
1137 shrpd ret0,%r0,%sar,%r1
1138 MTDIAG_1 (1)
1139 STDIAG (9)
1140 ssm 0,0
1141 b,n perf_rdr_shift_in_U_leave
1142
1143 SFDIAG (10) ; RDR 10 read sequence
1144 ssm 0,0
1145 MFDIAG_1 (28)
1146 shrpd ret0,%r0,%sar,%r1
1147 MTDIAG_1 (1)
1148 STDIAG (10)
1149 ssm 0,0
1150 b,n perf_rdr_shift_in_U_leave
1151
1152 SFDIAG (11) ; RDR 11 read sequence
1153 ssm 0,0
1154 MFDIAG_1 (28)
1155 shrpd ret0,%r0,%sar,%r1
1156 MTDIAG_1 (1)
1157 STDIAG (11)
1158 ssm 0,0
1159 b,n perf_rdr_shift_in_U_leave
1160
1161 SFDIAG (12) ; RDR 12 read sequence
1162 ssm 0,0
1163 MFDIAG_1 (28)
1164 shrpd ret0,%r0,%sar,%r1
1165 MTDIAG_1 (1)
1166 STDIAG (12)
1167 ssm 0,0
1168 b,n perf_rdr_shift_in_U_leave
1169
1170 SFDIAG (13) ; RDR 13 read sequence
1171 ssm 0,0
1172 MFDIAG_1 (28)
1173 shrpd ret0,%r0,%sar,%r1
1174 MTDIAG_1 (1)
1175 STDIAG (13)
1176 ssm 0,0
1177 b,n perf_rdr_shift_in_U_leave
1178
1179 SFDIAG (14) ; RDR 14 read sequence
1180 ssm 0,0
1181 MFDIAG_1 (28)
1182 shrpd ret0,%r0,%sar,%r1
1183 MTDIAG_1 (1)
1184 STDIAG (14)
1185 ssm 0,0
1186 b,n perf_rdr_shift_in_U_leave
1187
1188 SFDIAG (15) ; RDR 15 read sequence
1189 ssm 0,0
1190 MFDIAG_1 (28)
1191 shrpd ret0,%r0,%sar,%r1
1192 MTDIAG_1 (1)
1193 STDIAG (15)
1194 ssm 0,0
1195 b,n perf_rdr_shift_in_U_leave
1196
1197 sync ; RDR 16 read sequence
1198 ssm 0,0
1199 SFDIAG (16)
1200 ssm 0,0
1201 MFDIAG_1 (28)
1202 b,n perf_rdr_shift_in_U_leave
1203 ssm 0,0
1204 nop
1205
1206 SFDIAG (17) ; RDR 17 read sequence
1207 ssm 0,0
1208 MFDIAG_1 (28)
1209 shrpd ret0,%r0,%sar,%r1
1210 MTDIAG_1 (1)
1211 STDIAG (17)
1212 ssm 0,0
1213 b,n perf_rdr_shift_in_U_leave
1214
1215 SFDIAG (18) ; RDR 18 read sequence
1216 ssm 0,0
1217 MFDIAG_1 (28)
1218 shrpd ret0,%r0,%sar,%r1
1219 MTDIAG_1 (1)
1220 STDIAG (18)
1221 ssm 0,0
1222 b,n perf_rdr_shift_in_U_leave
1223
1224 b,n perf_rdr_shift_in_U_leave
1225 nop
1226 nop
1227 nop
1228 nop
1229 nop
1230 nop
1231 nop
1232
1233 sync ; RDR 20 read sequence
1234 ssm 0,0
1235 SFDIAG (20)
1236 ssm 0,0
1237 MFDIAG_1 (28)
1238 b,n perf_rdr_shift_in_U_leave
1239 ssm 0,0
1240 nop
1241
1242 sync ; RDR 21 read sequence
1243 ssm 0,0
1244 SFDIAG (21)
1245 ssm 0,0
1246 MFDIAG_1 (28)
1247 b,n perf_rdr_shift_in_U_leave
1248 ssm 0,0
1249 nop
1250
1251 sync ; RDR 22 read sequence
1252 ssm 0,0
1253 SFDIAG (22)
1254 ssm 0,0
1255 MFDIAG_1 (28)
1256 b,n perf_rdr_shift_in_U_leave
1257 ssm 0,0
1258 nop
1259
1260 sync ; RDR 23 read sequence
1261 ssm 0,0
1262 SFDIAG (23)
1263 ssm 0,0
1264 MFDIAG_1 (28)
1265 b,n perf_rdr_shift_in_U_leave
1266 ssm 0,0
1267 nop
1268
1269 sync ; RDR 24 read sequence
1270 ssm 0,0
1271 SFDIAG (24)
1272 ssm 0,0
1273 MFDIAG_1 (28)
1274 b,n perf_rdr_shift_in_U_leave
1275 ssm 0,0
1276 nop
1277
1278 sync ; RDR 25 read sequence
1279 ssm 0,0
1280 SFDIAG (25)
1281 ssm 0,0
1282 MFDIAG_1 (28)
1283 b,n perf_rdr_shift_in_U_leave
1284 ssm 0,0
1285 nop
1286
1287 SFDIAG (26) ; RDR 26 read sequence
1288 ssm 0,0
1289 MFDIAG_1 (28)
1290 shrpd ret0,%r0,%sar,%r1
1291 MTDIAG_1 (1)
1292 STDIAG (26)
1293 ssm 0,0
1294 b,n perf_rdr_shift_in_U_leave
1295
1296 SFDIAG (27) ; RDR 27 read sequence
1297 ssm 0,0
1298 MFDIAG_1 (28)
1299 shrpd ret0,%r0,%sar,%r1
1300 MTDIAG_1 (1)
1301 STDIAG (27)
1302 ssm 0,0
1303 b,n perf_rdr_shift_in_U_leave
1304
1305 sync ; RDR 28 read sequence
1306 ssm 0,0
1307 SFDIAG (28)
1308 ssm 0,0
1309 MFDIAG_1 (28)
1310 b,n perf_rdr_shift_in_U_leave
1311 ssm 0,0
1312 nop
1313
1314 b,n perf_rdr_shift_in_U_leave
1315 nop
1316 nop
1317 nop
1318 nop
1319 nop
1320 nop
1321 nop
1322
1323 SFDIAG (30) ; RDR 30 read sequence
1324 ssm 0,0
1325 MFDIAG_1 (28)
1326 shrpd ret0,%r0,%sar,%r1
1327 MTDIAG_1 (1)
1328 STDIAG (30)
1329 ssm 0,0
1330 b,n perf_rdr_shift_in_U_leave
1331
1332 SFDIAG (31) ; RDR 31 read sequence
1333 ssm 0,0
1334 MFDIAG_1 (28)
1335 shrpd ret0,%r0,%sar,%r1
1336 MTDIAG_1 (1)
1337 STDIAG (31)
1338 ssm 0,0
1339 b,n perf_rdr_shift_in_U_leave
1340 nop
1341
1342perf_rdr_shift_in_U_leave:
1343 bve (%r2)
1344 .exit
1345 MTDIAG_2 (24) ; restore DR2
1346 .procend
1347
1348;***********************************************************************
1349;*
1350;* Name: rdr_shift_out_U
1351;*
1352;* Description:
1353;* This routine moves data to the RDR's. The double-word that
1354;* arg1 points to is loaded and moved into the staging register.
1355;* Then the STDIAG instruction for the RDR # in arg0 is called
1356;* to move the data to the RDR.
1357;*
1358;* Arguments:
1359;* arg0 = rdr target
1360;* arg1 = buffer pointer
1361;*
1362;* Returns:
1363;* None
1364;*
1365;* Register usage:
1366;* arg0 = rdr target
1367;* arg1 = buffer pointer
1368;* %r24 - DR2 | DR2_SLOW_RET
1369;* %r23 - original DR2 value
1370;*
1371;***********************************************************************
1372
1373 .export perf_rdr_shift_out_U,code
1374perf_rdr_shift_out_U:
1375 .proc
1376 .callinfo frame=0,NO_CALLS
1377 .entry
1378
1379;
1380; NOTE: The PCX-U ERS states that DR2_SLOW_RET must be set before any
1381; shifting is done, from or to, the remote diagnose registers.
1382;
1383
1384 depdi,z 1,DR2_SLOW_RET,1,%r24
1385 MFDIAG_2 (23)
1386 or %r24,%r23,%r24
1387 MTDIAG_2 (24) ; set DR2_SLOW_RET
1388
1389 MTDIAG_1 (25) ; data to the staging register
1390 shladd arg0,2,%r0,%r1 ; %r1 = 4 * RDR number
1391 blr %r1,%r0 ; branch to 8-instruction sequence
1392 nop
1393
1394;
1395; 32-byte cachline aligned
1396;
1397
1398 sync ; RDR 0 write sequence
1399 ssm 0,0
1400 STDIAG (0)
1401 ssm 0,0
1402 b,n perf_rdr_shift_out_U_leave
1403 nop
1404 ssm 0,0
1405 nop
1406
1407 sync ; RDR 1 write sequence
1408 ssm 0,0
1409 STDIAG (1)
1410 ssm 0,0
1411 b,n perf_rdr_shift_out_U_leave
1412 nop
1413 ssm 0,0
1414 nop
1415
1416 sync ; RDR 2 write sequence
1417 ssm 0,0
1418 STDIAG (2)
1419 ssm 0,0
1420 b,n perf_rdr_shift_out_U_leave
1421 nop
1422 ssm 0,0
1423 nop
1424
1425 sync ; RDR 3 write sequence
1426 ssm 0,0
1427 STDIAG (3)
1428 ssm 0,0
1429 b,n perf_rdr_shift_out_U_leave
1430 nop
1431 ssm 0,0
1432 nop
1433
1434 sync ; RDR 4 write sequence
1435 ssm 0,0
1436 STDIAG (4)
1437 ssm 0,0
1438 b,n perf_rdr_shift_out_U_leave
1439 nop
1440 ssm 0,0
1441 nop
1442
1443 sync ; RDR 5 write sequence
1444 ssm 0,0
1445 STDIAG (5)
1446 ssm 0,0
1447 b,n perf_rdr_shift_out_U_leave
1448 nop
1449 ssm 0,0
1450 nop
1451
1452 sync ; RDR 6 write sequence
1453 ssm 0,0
1454 STDIAG (6)
1455 ssm 0,0
1456 b,n perf_rdr_shift_out_U_leave
1457 nop
1458 ssm 0,0
1459 nop
1460
1461 sync ; RDR 7 write sequence
1462 ssm 0,0
1463 STDIAG (7)
1464 ssm 0,0
1465 b,n perf_rdr_shift_out_U_leave
1466 nop
1467 ssm 0,0
1468 nop
1469
1470 sync ; RDR 8 write sequence
1471 ssm 0,0
1472 STDIAG (8)
1473 ssm 0,0
1474 b,n perf_rdr_shift_out_U_leave
1475 nop
1476 ssm 0,0
1477 nop
1478
1479 sync ; RDR 9 write sequence
1480 ssm 0,0
1481 STDIAG (9)
1482 ssm 0,0
1483 b,n perf_rdr_shift_out_U_leave
1484 nop
1485 ssm 0,0
1486 nop
1487
1488 sync ; RDR 10 write sequence
1489 ssm 0,0
1490 STDIAG (10)
1491 ssm 0,0
1492 b,n perf_rdr_shift_out_U_leave
1493 nop
1494 ssm 0,0
1495 nop
1496
1497 sync ; RDR 11 write sequence
1498 ssm 0,0
1499 STDIAG (11)
1500 ssm 0,0
1501 b,n perf_rdr_shift_out_U_leave
1502 nop
1503 ssm 0,0
1504 nop
1505
1506 sync ; RDR 12 write sequence
1507 ssm 0,0
1508 STDIAG (12)
1509 ssm 0,0
1510 b,n perf_rdr_shift_out_U_leave
1511 nop
1512 ssm 0,0
1513 nop
1514
1515 sync ; RDR 13 write sequence
1516 ssm 0,0
1517 STDIAG (13)
1518 ssm 0,0
1519 b,n perf_rdr_shift_out_U_leave
1520 nop
1521 ssm 0,0
1522 nop
1523
1524 sync ; RDR 14 write sequence
1525 ssm 0,0
1526 STDIAG (14)
1527 ssm 0,0
1528 b,n perf_rdr_shift_out_U_leave
1529 nop
1530 ssm 0,0
1531 nop
1532
1533 sync ; RDR 15 write sequence
1534 ssm 0,0
1535 STDIAG (15)
1536 ssm 0,0
1537 b,n perf_rdr_shift_out_U_leave
1538 nop
1539 ssm 0,0
1540 nop
1541
1542 sync ; RDR 16 write sequence
1543 ssm 0,0
1544 STDIAG (16)
1545 ssm 0,0
1546 b,n perf_rdr_shift_out_U_leave
1547 nop
1548 ssm 0,0
1549 nop
1550
1551 sync ; RDR 17 write sequence
1552 ssm 0,0
1553 STDIAG (17)
1554 ssm 0,0
1555 b,n perf_rdr_shift_out_U_leave
1556 nop
1557 ssm 0,0
1558 nop
1559
1560 sync ; RDR 18 write sequence
1561 ssm 0,0
1562 STDIAG (18)
1563 ssm 0,0
1564 b,n perf_rdr_shift_out_U_leave
1565 nop
1566 ssm 0,0
1567 nop
1568
1569 sync ; RDR 19 write sequence
1570 ssm 0,0
1571 STDIAG (19)
1572 ssm 0,0
1573 b,n perf_rdr_shift_out_U_leave
1574 nop
1575 ssm 0,0
1576 nop
1577
1578 sync ; RDR 20 write sequence
1579 ssm 0,0
1580 STDIAG (20)
1581 ssm 0,0
1582 b,n perf_rdr_shift_out_U_leave
1583 nop
1584 ssm 0,0
1585 nop
1586
1587 sync ; RDR 21 write sequence
1588 ssm 0,0
1589 STDIAG (21)
1590 ssm 0,0
1591 b,n perf_rdr_shift_out_U_leave
1592 nop
1593 ssm 0,0
1594 nop
1595
1596 sync ; RDR 22 write sequence
1597 ssm 0,0
1598 STDIAG (22)
1599 ssm 0,0
1600 b,n perf_rdr_shift_out_U_leave
1601 nop
1602 ssm 0,0
1603 nop
1604
1605 sync ; RDR 23 write sequence
1606 ssm 0,0
1607 STDIAG (23)
1608 ssm 0,0
1609 b,n perf_rdr_shift_out_U_leave
1610 nop
1611 ssm 0,0
1612 nop
1613
1614 sync ; RDR 24 write sequence
1615 ssm 0,0
1616 STDIAG (24)
1617 ssm 0,0
1618 b,n perf_rdr_shift_out_U_leave
1619 nop
1620 ssm 0,0
1621 nop
1622
1623 sync ; RDR 25 write sequence
1624 ssm 0,0
1625 STDIAG (25)
1626 ssm 0,0
1627 b,n perf_rdr_shift_out_U_leave
1628 nop
1629 ssm 0,0
1630 nop
1631
1632 sync ; RDR 26 write sequence
1633 ssm 0,0
1634 STDIAG (26)
1635 ssm 0,0
1636 b,n perf_rdr_shift_out_U_leave
1637 nop
1638 ssm 0,0
1639 nop
1640
1641 sync ; RDR 27 write sequence
1642 ssm 0,0
1643 STDIAG (27)
1644 ssm 0,0
1645 b,n perf_rdr_shift_out_U_leave
1646 nop
1647 ssm 0,0
1648 nop
1649
1650 sync ; RDR 28 write sequence
1651 ssm 0,0
1652 STDIAG (28)
1653 ssm 0,0
1654 b,n perf_rdr_shift_out_U_leave
1655 nop
1656 ssm 0,0
1657 nop
1658
1659 sync ; RDR 29 write sequence
1660 ssm 0,0
1661 STDIAG (29)
1662 ssm 0,0
1663 b,n perf_rdr_shift_out_U_leave
1664 nop
1665 ssm 0,0
1666 nop
1667
1668 sync ; RDR 30 write sequence
1669 ssm 0,0
1670 STDIAG (30)
1671 ssm 0,0
1672 b,n perf_rdr_shift_out_U_leave
1673 nop
1674 ssm 0,0
1675 nop
1676
1677 sync ; RDR 31 write sequence
1678 ssm 0,0
1679 STDIAG (31)
1680 ssm 0,0
1681 b,n perf_rdr_shift_out_U_leave
1682 nop
1683 ssm 0,0
1684 nop
1685
1686perf_rdr_shift_out_U_leave:
1687 bve (%r2)
1688 .exit
1689 MTDIAG_2 (23) ; restore DR2
1690 .procend
1691
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 05:25:41 -0500