Revert "parisc: fix trivial section name warnings"
[linux-2.6.git] / arch / parisc / kernel / perf_asm.S
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 <asm/assembly.h>
23
24 #include <linux/init.h>
25 #include <linux/linkage.h>
26
27 #ifdef CONFIG_64BIT
28         .level          2.0w
29 #endif /* CONFIG_64BIT */
30
31 #define MTDIAG_1(gr)    .word 0x14201840 + gr*0x10000
32 #define MTDIAG_2(gr)    .word 0x14401840 + gr*0x10000
33 #define MFDIAG_1(gr)    .word 0x142008A0 + gr
34 #define MFDIAG_2(gr)    .word 0x144008A0 + gr
35 #define STDIAG(dr)      .word 0x14000AA0 + dr*0x200000
36 #define SFDIAG(dr)      .word 0x14000BA0 + dr*0x200000
37 #define DR2_SLOW_RET    53
38
39
40 ;
41 ; Enable the performance counters
42 ;
43 ; The coprocessor only needs to be enabled when
44 ; starting/stopping the coprocessor with the pmenb/pmdis.
45 ;
46         .text
47
48 ENTRY(perf_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 ENDPROC(perf_intrigue_enable_perf_counters)
74
75 ENTRY(perf_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 ENDPROC(perf_intrigue_disable_perf_counters)
91
92 ;***********************************************************************
93 ;*
94 ;* Name: perf_rdr_shift_in_W
95 ;*
96 ;* Description:
97 ;*      This routine shifts data in from the RDR in arg0 and returns
98 ;*      the result in ret0.  If the RDR is <= 64 bits in length, it
99 ;*      is shifted shifted backup immediately.  This is to compensate
100 ;*      for RDR10 which has bits that preclude PDC stack operations
101 ;*      when they are in the wrong state.
102 ;*
103 ;* Arguments:
104 ;*      arg0 : rdr to be read
105 ;*      arg1 : bit length of rdr
106 ;*
107 ;* Returns:
108 ;*      ret0 = next 64 bits of rdr data from staging register
109 ;*
110 ;* Register usage:
111 ;*      arg0 : rdr to be read
112 ;*      arg1 : bit length of rdr
113 ;*      %r24  - original DR2 value
114 ;*      %r1   - scratch
115 ;*  %r29  - scratch
116 ;*
117 ;* Returns:
118 ;*      ret0 = RDR data (right justified)
119 ;*
120 ;***********************************************************************
121
122 ENTRY(perf_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
549 perf_rdr_shift_in_W_leave:
550         bve                 (%r2)
551         .exit
552         MTDIAG_2        (24)                    ; restore DR2
553         .procend
554 ENDPROC(perf_rdr_shift_in_W)
555
556
557 ;***********************************************************************
558 ;*
559 ;* Name: perf_rdr_shift_out_W
560 ;*
561 ;* Description:
562 ;*      This routine moves data to the RDR's.  The double-word that
563 ;*      arg1 points to is loaded and moved into the staging register.
564 ;*      Then the STDIAG instruction for the RDR # in arg0 is called
565 ;*      to move the data to the RDR.
566 ;*
567 ;* Arguments:
568 ;*      arg0 = rdr number
569 ;*      arg1 = 64-bit value to write
570 ;*      %r24 - DR2 | DR2_SLOW_RET
571 ;*      %r23 - original DR2 value
572 ;*
573 ;* Returns:
574 ;*      None
575 ;*
576 ;* Register usage:
577 ;*
578 ;***********************************************************************
579
580 ENTRY(perf_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
982 perf_rdr_shift_out_W_leave:
983         bve             (%r2)
984         .exit
985         MTDIAG_2        (23)                    ; restore DR2
986         .procend
987 ENDPROC(perf_rdr_shift_out_W)
988
989
990 ;***********************************************************************
991 ;*
992 ;* Name: rdr_shift_in_U
993 ;*
994 ;* Description:
995 ;*      This routine shifts data in from the RDR in arg0 and returns
996 ;*      the result in ret0.  If the RDR is <= 64 bits in length, it
997 ;*      is shifted shifted backup immediately.  This is to compensate
998 ;*      for RDR10 which has bits that preclude PDC stack operations
999 ;*      when they are in the wrong state.
1000 ;*
1001 ;* Arguments:
1002 ;*      arg0 : rdr to be read
1003 ;*      arg1 : bit length of rdr
1004 ;*
1005 ;* Returns:
1006 ;*      ret0 = next 64 bits of rdr data from staging register
1007 ;*
1008 ;* Register usage:
1009 ;*      arg0 : rdr to be read                                                                   
1010 ;*      arg1 : bit length of rdr                                                                
1011 ;*      %r24 - original DR2 value
1012 ;*      %r23 - DR2 | DR2_SLOW_RET
1013 ;*      %r1  - scratch
1014 ;*
1015 ;***********************************************************************
1016
1017 ENTRY(perf_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
1342 perf_rdr_shift_in_U_leave:
1343         bve                 (%r2)
1344         .exit
1345         MTDIAG_2        (24)                    ; restore DR2
1346         .procend
1347 ENDPROC(perf_rdr_shift_in_U)
1348
1349 ;***********************************************************************
1350 ;*
1351 ;* Name: rdr_shift_out_U
1352 ;*
1353 ;* Description:
1354 ;*      This routine moves data to the RDR's.  The double-word that
1355 ;*      arg1 points to is loaded and moved into the staging register.
1356 ;*      Then the STDIAG instruction for the RDR # in arg0 is called
1357 ;*      to move the data to the RDR.
1358 ;*
1359 ;* Arguments:
1360 ;*      arg0 = rdr target
1361 ;*      arg1 = buffer pointer
1362 ;*
1363 ;* Returns:
1364 ;*      None
1365 ;*
1366 ;* Register usage:
1367 ;*      arg0 = rdr target
1368 ;*      arg1 = buffer pointer
1369 ;*      %r24 - DR2 | DR2_SLOW_RET
1370 ;*      %r23 - original DR2 value
1371 ;*
1372 ;***********************************************************************
1373
1374 ENTRY(perf_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
1686 perf_rdr_shift_out_U_leave:
1687         bve             (%r2)
1688         .exit
1689         MTDIAG_2        (23)                    ; restore DR2
1690         .procend
1691 ENDPROC(perf_rdr_shift_out_U)
1692