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source: release/1.4/source/compiler/PPC/PPC64/ppc64-arch.lisp

Last change on this file was 13075, checked in by R. Matthew Emerson, 15 years ago

Merge trunk changes r13066 through r13067.
(copyright notices)

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1;;;-*- Mode: Lisp; Package: (PPC64 :use CL) -*-
2;;;
3;;; Copyright (C) 2009 Clozure Associates
4;;; Copyright (C) 1994-2001 Digitool, Inc
5;;; This file is part of Clozure CL.
6;;;
7;;; Clozure CL is licensed under the terms of the Lisp Lesser GNU Public
8;;; License , known as the LLGPL and distributed with Clozure CL as the
9;;; file "LICENSE". The LLGPL consists of a preamble and the LGPL,
10;;; which is distributed with Clozure CL as the file "LGPL". Where these
11;;; conflict, the preamble takes precedence.
12;;;
13;;; Clozure CL is referenced in the preamble as the "LIBRARY."
14;;;
15;;; The LLGPL is also available online at
16;;; http://opensource.franz.com/preamble.html
17
18;;; This file matches "ccl:lisp-kernel;constants64.h" &
19;;; "ccl:lisp-kernel;constants64.s"
20
21(defpackage "PPC64"
22 (:use "CL")
23 #+ppc64-target
24 (:nicknames "TARGET"))
25
26
27(in-package "PPC64")
28
29(eval-when (:compile-toplevel :load-toplevel :execute)
30(defconstant rcontext 2) ;sigh. Could use r13+bias on Linux,
31 ; but Apple hasn't invented tls yet.
32(defconstant nbits-in-word 64)
33(defconstant least-significant-bit 63)
34(defconstant nbits-in-byte 8)
35(defconstant ntagbits 4)
36(defconstant nlisptagbits 3)
37(defconstant nfixnumtagbits 3) ; See ?
38(defconstant nlowtagbits 2)
39(defconstant num-subtag-bits 8) ; tag part of header is 8 bits wide
40(defconstant fixnumshift nfixnumtagbits)
41(defconstant fixnum-shift fixnumshift) ; A pet name for it.
42(defconstant fulltagmask (1- (ash 1 ntagbits))) ; Only needed by GC/very low-level code
43(defconstant full-tag-mask fulltagmask)
44(defconstant tagmask (1- (ash 1 nlisptagbits)))
45(defconstant tag-mask tagmask)
46(defconstant fixnummask (1- (ash 1 nfixnumtagbits)))
47(defconstant fixnum-mask fixnummask)
48(defconstant subtag-mask (1- (ash 1 num-subtag-bits)))
49(defconstant ncharcodebits 8) ;24
50(defconstant charcode-shift 8)
51(defconstant word-shift 3)
52(defconstant word-size-in-bytes 8)
53(defconstant node-size word-size-in-bytes)
54(defconstant dnode-size 16)
55(defconstant dnode-align-bits 4)
56(defconstant dnode-shift dnode-align-bits)
57(defconstant bitmap-shift 6)
58
59(defconstant target-most-negative-fixnum (ash -1 (1- (- nbits-in-word nfixnumtagbits))))
60(defconstant target-most-positive-fixnum (1- (ash 1 (1- (- nbits-in-word nfixnumtagbits)))))
61(defmacro define-subtag (name tag value)
62 `(defconstant ,(ccl::form-symbol "SUBTAG-" name) (logior ,tag (ash ,value ntagbits))))
63
64;;; PPC64 stuff and tags.
65
66;;; There are several ways to look at the 4 tag bits of any object or
67;;; header. Looking at the low 2 bits, we can classify things as
68;;; follows (I'm not sure if we'd ever want to do this) :
69;;;
70;;; #b00 a "primary" object: fixnum, cons, uvector
71;;; #b01 an immediate
72;;; #b10 the header on an immediate uvector
73;;; #b11 the header on a node (pointer-containing) uvector
74;;
75;;; Note that the ppc64's LD and STD instructions require that the low
76;;; two bits of the constant displacement be #b00. If we want to use constant
77;;; offsets to access CONS and UVECTOR fields, we're pretty much obligated
78;;; to ensure that CONS and UVECTOR have tags that also end in #b00, and
79;;; fixnum addition and subtraction work better when fixnum tags are all 0.
80;;; We generally have to look at all 4 tag bits before we really know what
81;;; class of "potentially primary" object we're looking at.
82;;; If we look at 3 tag bits, we can see:
83;;;
84;;; #b000 fixnum
85;;; #b001 immediate
86;;; #b010 immedate-header
87;;; #b011 node-header
88;;; #b100 CONS or UVECTOR
89;;; #b101 immediate
90;;; #b110 immediate-header
91;;; #b111 node-header
92;;;
93
94(defconstant tag-fixnum 0)
95(defconstant tag-imm-0 1)
96(defconstant tag-immheader-0 2)
97(defconstant tag-nodeheader-0 3)
98(defconstant tag-memory 4)
99(defconstant tag-imm-2 5)
100(defconstant tag-immheader2 6)
101(defconstant tag-nodeheader2 7)
102
103
104;;; Note how we're already winding up with lots of header and immediate
105;;; "classes". That might actually be useful.
106;;
107;;; When we move to 4 bits, we wind up (obviously) with 4 tags of the form
108;;; #bxx00. There are two partitionings that make (some) sense: we can either
109;;; use 2 of these for (even and odd) fixnums, or we can give NIL a tag
110;;; that's congruent (mod 16) with CONS. There seem to be a lot of tradeoffs
111;;; involved, but it ultimately seems best to be able to treat 64-bit
112;;; aligned addresses as fixnums: we don't want the VSP to look like a
113;;; vector. That basically requires that NIL really be a symbol (good
114;;; bye, nilsym) and that we ensure that there are NILs where its CAR and
115;;; CDR would be (-4, 4 bytes from the tagged pointer.) That means that
116;;; CONS is 4 and UVECTOR is 12, and we have even more immediate/header types.
117
118(defconstant fulltag-even-fixnum #b0000)
119(defconstant fulltag-imm-0 #b0001)
120(defconstant fulltag-immheader-0 #b0010)
121(defconstant fulltag-nodeheader-0 #b0011)
122(defconstant fulltag-cons #b0100)
123(defconstant fulltag-imm-1 #b0101)
124(defconstant fulltag-immheader-1 #b0110)
125(defconstant fulltag-nodeheader-1 #b0111)
126(defconstant fulltag-odd-fixnum #b1000)
127(defconstant fulltag-imm-2 #b1001)
128(defconstant fulltag-immheader-2 #b1010)
129(defconstant fulltag-nodeheader-2 #b1011)
130(defconstant fulltag-misc #b1100)
131(defconstant fulltag-imm-3 #b1101)
132(defconstant fulltag-immheader-3 #b1110)
133(defconstant fulltag-nodeheader-3 #b1111)
134
135(defconstant lowtagmask (1- (ash 1 nlowtagbits)))
136(defconstant lowtag-mask lowtagmask)
137(defconstant lowtag-primary 0)
138(defconstant lowtag-imm 1)
139(defconstant lowtag-immheader 2)
140(defconstant lowtag-nodeheader 3)
141
142;;; The general algorithm for determining the (primary) type of an
143;;; object is something like:
144;;; (clrldi tag node 60)
145;;; (cmpwi tag fulltag-misc)
146;;; (clrldi tag tag 61)
147;;; (bne @done)
148;;; (lbz tag misc-subtag-offset node)
149;;; @done
150;;
151;;; That's good enough to identify FIXNUM, "generally immediate", cons,
152;;; or a header tag from a UVECTOR. In some cases, we may need to hold
153;;; on to the full 4-bit tag.
154;;; In no specific order:
155;;; - it's important to be able to quickly recognize fixnums; that's
156;;; simple
157;;; - it's important to be able to quickly recognize lists (for CAR/CDR)
158;;; and somewhat important to be able to quickly recognize conses.
159;;; Also simple, though we have to special-case NIL.
160;;; - it's desirable to be able to do VECTORP, ARRAYP, and specific-array-type-
161;;; p. We need at least 12 immediate CL vector types (SIGNED/UNSIGNED-BYTE
162;;; 8/16/32/64, SINGLE-FLOAT, DOUBLE-FLOAT, BIT, and at least one CHARACTER;
163;;; we need SIMPLE-ARRAY, VECTOR-HEADER, and ARRAY-HEADER as node
164;;; array types. That's suspciciously close to 16
165;;; - it's desirable to be able (in FUNCALL) to quickly recognize
166;;; functions/symbols/other, and probably desirable to trap on other.
167;;; Pretty much have to do a memory reference and at least one comparison
168;;; here.
169;;; - it's sometimes desirable to recognize numbers and distinct numeric
170;;; types (other than FIXNUM) quickly.
171;;; - The GC (especially) needs to be able to determine the size of
172;;; ivectors (ivector elements) fairly cheaply. Most ivectors are CL
173;;; arrays, but code-vectors are fairly common (and have 32-bit elements,
174;;; naturally.)
175;;; - We have a fairly large number of non-array gvector types, and it's
176;;; always desirable to have room for expansion.
177;;; - we basically have 8 classes of header subtags, each of which has
178;;; 16 possible values. If we stole the high bit of the subtag to
179;;; indicate CL-array-ness, we'd still have 6 bits to encode non-CL
180;;; array types.
181
182(defconstant cl-array-subtag-bit 7)
183(defconstant cl-array-subtag-mask (ash 1 cl-array-subtag-bit))
184(defmacro define-cl-array-subtag (name tag value)
185 `(defconstant ,(ccl::form-symbol "SUBTAG-" name)
186 (logior cl-array-subtag-mask (logior ,tag (ash ,value ntagbits)))))
187
188(define-cl-array-subtag arrayH fulltag-nodeheader-1 0)
189(define-cl-array-subtag vectorH fulltag-nodeheader-2 0)
190(define-cl-array-subtag simple-vector fulltag-nodeheader-3 0)
191(defconstant min-array-subtag subtag-arrayH)
192(defconstant min-vector-subtag subtag-vectorH)
193
194;;; bits: 64 32 16 8 1
195;;; CL-array ivector types DOUBLE-FLOAT SINGLE s16 CHAR BIT
196;;; s64 s32 u16 s8
197;;; u64 u32 u8
198;;; Other ivector types MACPTR CODE-VECTOR
199;;; DEAD-MACPTR XCODE-VECTOR
200;;; BIGNUM
201;;; DOUBLE-FLOAT
202;;; There might possibly be ivectors with 128-bit (VMX/AltiVec) elements
203;;; someday, and there might be multiple character sizes (16/32 bits).
204;;; That sort of suggests that we use the four immheader classes to
205;;; encode the ivector size (64, 32, 8, other) and make BIT an easily-
206;;; detected case of OTHER.
207
208(defconstant ivector-class-64-bit fulltag-immheader-3)
209(defconstant ivector-class-32-bit fulltag-immheader-2)
210(defconstant ivector-class-other-bit fulltag-immheader-1)
211(defconstant ivector-class-8-bit fulltag-immheader-0)
212
213(define-cl-array-subtag s64-vector ivector-class-64-bit 1)
214(define-cl-array-subtag u64-vector ivector-class-64-bit 2)
215(define-cl-array-subtag fixnum-vector ivector-class-64-bit 3)
216(define-cl-array-subtag double-float-vector ivector-class-64-bit 4)
217(define-cl-array-subtag s32-vector ivector-class-32-bit 1)
218(define-cl-array-subtag u32-vector ivector-class-32-bit 2)
219(define-cl-array-subtag single-float-vector ivector-class-32-bit 3)
220(define-cl-array-subtag simple-base-string ivector-class-32-bit 5)
221(define-cl-array-subtag s16-vector ivector-class-other-bit 1)
222(define-cl-array-subtag u16-vector ivector-class-other-bit 2)
223(define-cl-array-subtag bit-vector ivector-class-other-bit 7)
224(define-cl-array-subtag s8-vector ivector-class-8-bit 1)
225(define-cl-array-subtag u8-vector ivector-class-8-bit 2)
226
227;;; There's some room for expansion in non-array ivector space.
228(define-subtag macptr ivector-class-64-bit 1)
229(define-subtag dead-macptr ivector-class-64-bit 2)
230
231(define-subtag code-vector ivector-class-32-bit 0)
232(define-subtag xcode-vector ivector-class-32-bit 1)
233(define-subtag bignum ivector-class-32-bit 2)
234(define-subtag double-float ivector-class-32-bit 3)
235
236;;; Size doesn't matter for non-CL-array gvectors; I can't think of a good
237;;; reason to classify them in any particular way. Let's put funcallable
238;;; things in the first slice by themselves, though it's not clear that
239;;; that helps FUNCALL much.
240(defconstant gvector-funcallable fulltag-nodeheader-0)
241(define-subtag function gvector-funcallable 0)
242(define-subtag symbol gvector-funcallable 1)
243
244(define-subtag catch-frame fulltag-nodeheader-1 0)
245(define-subtag basic-stream fulltag-nodeheader-1 1)
246(define-subtag lock fulltag-nodeheader-1 2)
247(define-subtag hash-vector fulltag-nodeheader-1 3)
248(define-subtag pool fulltag-nodeheader-1 4)
249(define-subtag weak fulltag-nodeheader-1 5)
250(define-subtag package fulltag-nodeheader-1 6)
251(define-subtag slot-vector fulltag-nodeheader-2 0)
252(define-subtag instance fulltag-nodeheader-2 1)
253(define-subtag struct fulltag-nodeheader-2 2)
254(define-subtag istruct fulltag-nodeheader-2 3)
255(define-subtag value-cell fulltag-nodeheader-2 4)
256(define-subtag xfunction fulltag-nodeheader-2 5)
257
258(define-subtag ratio fulltag-nodeheader-3 0)
259(define-subtag complex fulltag-nodeheader-3 1)
260
261
262
263(eval-when (:compile-toplevel :load-toplevel :execute)
264 (require "PPC-ARCH")
265 (defmacro define-storage-layout (name origin &rest cells)
266 `(progn
267 (ccl::defenum (:start ,origin :step 8)
268 ,@(mapcar #'(lambda (cell) (ccl::form-symbol name "." cell)) cells))
269 (defconstant ,(ccl::form-symbol name ".SIZE") ,(* (length cells)
270 8))))
271
272(defmacro define-lisp-object (name tagname &rest cells)
273 `(define-storage-layout ,name ,(- (symbol-value tagname)) ,@cells))
274
275
276
277(defmacro define-fixedsized-object (name &rest non-header-cells)
278 `(progn
279 (define-lisp-object ,name fulltag-misc header ,@non-header-cells)
280 (ccl::defenum ()
281 ,@(mapcar #'(lambda (cell) (ccl::form-symbol name "." cell "-CELL")) non-header-cells))
282 (defconstant ,(ccl::form-symbol name ".ELEMENT-COUNT") ,(length non-header-cells))))
283
284
285
286
287
288
289
290(defconstant misc-header-offset (- fulltag-misc))
291(defconstant misc-subtag-offset (+ misc-header-offset 7 ))
292(defconstant misc-data-offset (+ misc-header-offset 8))
293(defconstant misc-dfloat-offset (+ misc-header-offset 8))
294
295
296
297(define-subtag single-float fulltag-imm-0 0)
298
299(define-subtag character fulltag-imm-1 0)
300
301;;; FULLTAG-IMM-2 is unused, so the only type with lisptag (3-bit tag)
302;;; TAG-IMM-0 should be SINGLE-FLOAT.
303
304(define-subtag unbound fulltag-imm-3 0)
305(defconstant unbound-marker subtag-unbound)
306(defconstant undefined unbound-marker)
307(define-subtag slot-unbound fulltag-imm-3 1)
308(defconstant slot-unbound-marker subtag-slot-unbound)
309(define-subtag illegal fulltag-imm-3 2)
310(defconstant illegal-marker subtag-illegal)
311
312(define-subtag no-thread-local-binding fulltag-imm-3 3)
313(define-subtag forward-marker fulltag-imm-3 7)
314
315
316(defconstant max-64-bit-constant-index (ash (+ #x7fff ppc64::misc-dfloat-offset) -3))
317(defconstant max-32-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) -2))
318(defconstant max-16-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) -1))
319(defconstant max-8-bit-constant-index (+ #x7fff ppc64::misc-data-offset))
320(defconstant max-1-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) 5))
321
322
323; The objects themselves look something like this:
324
325; Order of CAR and CDR doesn't seem to matter much - there aren't
326; too many tricks to be played with predecrement/preincrement addressing.
327; Keep them in the confusing MCL 3.0 order, to avoid confusion.
328(define-lisp-object cons fulltag-cons
329 cdr
330 car)
331
332
333(define-fixedsized-object ratio
334 numer
335 denom)
336
337;;; It's slightly easier (for bootstrapping reasons)
338;;; to view a DOUBLE-FLOAT as being UVECTOR with 2 32-bit elements
339;;; (rather than 1 64-bit element).
340
341(defconstant double-float.value misc-data-offset)
342(defconstant double-float.value-cell 0)
343(defconstant double-float.val-high double-float.value)
344(defconstant double-float.val-high-cell double-float.value-cell)
345(defconstant double-float.val-low (+ double-float.value 4))
346(defconstant double-float.val-low-cell 1)
347(defconstant double-float.element-count 2)
348(defconstant double-float.size 16)
349
350(define-fixedsized-object complex
351 realpart
352 imagpart
353)
354
355
356; There are two kinds of macptr; use the length field of the header if you
357; need to distinguish between them
358(define-fixedsized-object macptr
359 address
360 domain
361 type
362)
363
364(define-fixedsized-object xmacptr
365 address
366 domain
367 type
368 flags
369 link
370)
371
372; Catch frames go on the tstack; they point to a minimal lisp-frame
373; on the cstack. (The catch/unwind-protect PC is on the cstack, where
374; the GC expects to find it.)
375(define-fixedsized-object catch-frame
376 catch-tag ; #<unbound> -> unwind-protect, else catch
377 link ; tagged pointer to next older catch frame
378 mvflag ; 0 if single-value, 1 if uwp or multiple-value
379 csp ; pointer to control stack
380 db-link ; value of dynamic-binding link on thread entry.
381 save-save7 ; saved registers
382 save-save6
383 save-save5
384 save-save4
385 save-save3
386 save-save2
387 save-save1
388 save-save0
389 xframe ; exception-frame link
390 tsp-segment ; mostly padding, for now.
391)
392
393(define-fixedsized-object lock
394 _value ;finalizable pointer to kernel object
395 kind ; '0 = recursive-lock, '1 = rwlock
396 writer ;tcr of owning thread or 0
397 name
398 whostate
399 whostate-2
400 )
401
402
403
404(define-fixedsized-object symbol
405 pname
406 vcell
407 fcell
408 package-predicate
409 flags
410 plist
411 binding-index
412)
413
414
415(defconstant t-offset (- symbol.size))
416
417
418
419
420(define-fixedsized-object vectorH
421 logsize ; fillpointer if it has one, physsize otherwise
422 physsize ; total size of (possibly displaced) data vector
423 data-vector ; object this header describes
424 displacement ; true displacement or 0
425 flags ; has-fill-pointer,displaced-to,adjustable bits; subtype of underlying simple vector.
426)
427
428(define-lisp-object arrayH fulltag-misc
429 header ; subtag = subtag-arrayH
430 rank ; NEVER 1
431 physsize ; total size of (possibly displaced) data vector
432 data-vector ; object this header describes
433 displacement ; true displacement or 0
434 flags ; has-fill-pointer,displaced-to,adjustable bits; subtype of underlying simple vector.
435 ;; Dimensions follow
436)
437
438(defconstant arrayH.rank-cell 0)
439(defconstant arrayH.physsize-cell 1)
440(defconstant arrayH.data-vector-cell 2)
441(defconstant arrayH.displacement-cell 3)
442(defconstant arrayH.flags-cell 4)
443(defconstant arrayH.dim0-cell 5)
444
445(defconstant arrayH.flags-cell-bits-byte (byte 8 0))
446(defconstant arrayH.flags-cell-subtag-byte (byte 8 8))
447
448
449(define-fixedsized-object value-cell
450 value)
451
452
453;;; The kernel uses these (rather generically named) structures
454;;; to keep track of various memory regions it (or the lisp) is
455;;; interested in.
456
457
458(define-storage-layout area 0
459 pred ; pointer to preceding area in DLL
460 succ ; pointer to next area in DLL
461 low ; low bound on area addresses
462 high ; high bound on area addresses.
463 active ; low limit on stacks, high limit on heaps
464 softlimit ; overflow bound
465 hardlimit ; another one
466 code ; an area-code; see below
467 markbits ; bit vector for GC
468 ndnodes ; "active" size of dynamic area or stack
469 older ; in EGC sense
470 younger ; also for EGC
471 h ; Handle or null pointer
472 softprot ; protected_area structure pointer
473 hardprot ; another one.
474 owner ; fragment (library) which "owns" the area
475 refbits ; bitvector for intergenerational refernces
476 threshold ; for egc
477 gc-count ; generational gc count.
478 static-dnodes ; for honsing. etc
479 static-used ; bitvector
480)
481
482
483
484
485
486(define-storage-layout protected-area 0
487 next
488 start ; first byte (page-aligned) that might be protected
489 end ; last byte (page-aligned) that could be protected
490 nprot ; Might be 0
491 protsize ; number of bytes to protect
492 why)
493
494(defconstant tcr-bias 0)
495
496(define-storage-layout tcr (- tcr-bias)
497 prev ; in doubly-linked list
498 next ; in doubly-linked list
499 single-float-convert ; per-thread scratch space.
500 lisp-fpscr-high
501 db-link ; special binding chain head
502 catch-top ; top catch frame
503 save-vsp ; VSP when in foreign code
504 save-tsp ; TSP when in foreign code
505 cs-area ; cstack area pointer
506 vs-area ; vstack area pointer
507 ts-area ; tstack area pointer
508 cs-limit ; cstack overflow limit
509 total-bytes-allocated-high
510 log2-allocation-quantum ; unboxed
511 interrupt-pending ; fixnum
512 xframe ; exception frame linked list
513 errno-loc ; thread-private, maybe
514 ffi-exception ; fpscr bits from ff-call.
515 osid ; OS thread id
516 valence ; odd when in foreign code
517 foreign-exception-status
518 native-thread-info
519 native-thread-id
520 last-allocptr
521 save-allocptr
522 save-allocbase
523 reset-completion
524 activate
525 suspend-count
526 suspend-context
527 pending-exception-context
528 suspend ; semaphore for suspension notify
529 resume ; sempahore for resumption notify
530 flags ; foreign, being reset, ...
531 gc-context
532 termination-semaphore
533 unwinding
534 tlb-limit
535 tlb-pointer
536 shutdown-count
537 safe-ref-address
538)
539
540(defconstant interrupt-level-binding-index (ash 1 fixnumshift))
541
542(defconstant tcr.lisp-fpscr-low (+ tcr.lisp-fpscr-high 4))
543(defconstant tcr.total-bytes-allocated-low (+ tcr.total-bytes-allocated-high 4))
544
545(define-storage-layout lockptr 0
546 avail
547 owner
548 count
549 signal
550 waiting
551 malloced-ptr
552 spinlock)
553
554(define-storage-layout rwlock 0
555 spin
556 state
557 blocked-writers
558 blocked-readers
559 writer
560 reader-signal
561 writer-signal
562 malloced-ptr
563 )
564
565;;; For the eabi port: mark this stack frame as Lisp's (since EABI
566;;; foreign frames can be the same size as a lisp frame.)
567
568
569(ppc64::define-storage-layout lisp-frame 0
570 backlink
571 savefn
572 savelr
573 savevsp
574)
575
576(ppc64::define-storage-layout c-frame 0
577 backlink
578 crsave
579 savelr
580 unused-1
581 unused-2
582 savetoc
583 param0
584 param1
585 param2
586 param3
587 param4
588 param5
589 param6
590 param7
591)
592
593(defconstant c-frame.minsize c-frame.size)
594
595(defmacro define-header (name element-count subtag)
596 `(defconstant ,name (logior (ash ,element-count num-subtag-bits) ,subtag)))
597
598(define-header double-float-header double-float.element-count subtag-double-float)
599;;; We could possibly have a one-digit bignum header when dealing
600;;; with "small bignums" in some bignum code. Like other cases of
601;;; non-normalized bignums, they should never escape from the lab.
602(define-header one-digit-bignum-header 1 subtag-bignum)
603(define-header two-digit-bignum-header 2 subtag-bignum)
604(define-header three-digit-bignum-header 3 subtag-bignum)
605(define-header four-digit-bignum-header 4 subtag-bignum)
606(define-header five-digit-bignum-header 5 subtag-bignum)
607(define-header symbol-header symbol.element-count subtag-symbol)
608(define-header value-cell-header value-cell.element-count subtag-value-cell)
609(define-header macptr-header macptr.element-count subtag-macptr)
610
611
612(defconstant yield-syscall
613 #+darwinppc-target -60
614 #+linuxppc-target #$__NR_sched_yield)
615)
616)
617
618
619
620
621
622
623(defun %kernel-global (sym)
624 (let* ((pos (position sym ppc::*ppc-kernel-globals* :test #'string=)))
625 (if pos
626 (- (+ symbol.size fulltag-misc (* (1+ pos) word-size-in-bytes)))
627 (error "Unknown kernel global : ~s ." sym))))
628
629(defmacro kernel-global (sym)
630 (let* ((pos (position sym ppc::*ppc-kernel-globals* :test #'string=)))
631 (if pos
632 (- (+ symbol.size fulltag-misc (* (1+ pos) word-size-in-bytes)))
633 (error "Unknown kernel global : ~s ." sym))))
634
635;;; The kernel imports things that are defined in various other
636;;; libraries for us. The objects in question are generally
637;;; fixnum-tagged; the entries in the "kernel-imports" vector are 8
638;;; bytes apart.
639(ccl::defenum (:prefix "KERNEL-IMPORT-" :start 0 :step word-size-in-bytes)
640 fd-setsize-bytes
641 do-fd-set
642 do-fd-clr
643 do-fd-is-set
644 do-fd-zero
645 MakeDataExecutable
646 GetSharedLibrary
647 FindSymbol
648 malloc
649 free
650 jvm-init
651 tcr-frame-ptr
652 register-xmacptr-dispose-function
653 open-debug-output
654 get-r-debug
655 restore-soft-stack-limit
656 egc-control
657 lisp-bug
658 NewThread
659 YieldToThread
660 DisposeThread
661 ThreadCurrentStackSpace
662 usage-exit
663 save-fp-context
664 restore-fp-context
665 put-altivec-registers
666 get-altivec-registers
667 new-semaphore
668 wait-on-semaphore
669 signal-semaphore
670 destroy-semaphore
671 new-recursive-lock
672 lock-recursive-lock
673 unlock-recursive-lock
674 destroy-recursive-lock
675 suspend-other-threads
676 resume-other-threads
677 suspend-tcr
678 resume-tcr
679 rwlock-new
680 rwlock-destroy
681 rwlock-rlock
682 rwlock-wlock
683 rwlock-unlock
684 recursive-lock-trylock
685 foreign-name-and-offset
686 lisp-read
687 lisp-write
688 lisp-open
689 lisp-fchmod
690 lisp-lseek
691 lisp-close
692 lisp-ftruncate
693 lisp-stat
694 lisp-fstat
695 lisp-futex
696 lisp-opendir
697 lisp-readdir
698 lisp-closedir
699 lisp-pipe
700 lisp-gettimeofday
701 lisp-sigexit
702)
703
704(defmacro nrs-offset (name)
705 (let* ((pos (position name ppc::*ppc-nilreg-relative-symbols* :test #'eq)))
706 (if pos (* (1- pos) symbol.size))))
707
708(defconstant canonical-nil-value (+ #x3000 symbol.size fulltag-misc))
709
710
711(defconstant reservation-discharge #x2008)
712
713(defparameter *ppc64-target-uvector-subtags*
714 `((:bignum . ,subtag-bignum)
715 (:ratio . ,subtag-ratio)
716 (:single-float . ,subtag-single-float)
717 (:double-float . ,subtag-double-float)
718 (:complex . ,subtag-complex )
719 (:symbol . ,subtag-symbol)
720 (:function . ,subtag-function )
721 (:code-vector . ,subtag-code-vector)
722 (:xcode-vector . ,subtag-xcode-vector)
723 (:macptr . ,subtag-macptr )
724 (:catch-frame . ,subtag-catch-frame)
725 (:struct . ,subtag-struct )
726 (:istruct . ,subtag-istruct )
727 (:pool . ,subtag-pool )
728 (:population . ,subtag-weak )
729 (:hash-vector . ,subtag-hash-vector )
730 (:package . ,subtag-package )
731 (:value-cell . ,subtag-value-cell)
732 (:instance . ,subtag-instance )
733 (:lock . ,subtag-lock )
734 (:basic-stream . ,subtag-basic-stream)
735 (:slot-vector . ,subtag-slot-vector)
736 (:simple-string . ,subtag-simple-base-string )
737 (:bit-vector . ,subtag-bit-vector )
738 (:signed-8-bit-vector . ,subtag-s8-vector )
739 (:unsigned-8-bit-vector . ,subtag-u8-vector )
740 (:signed-16-bit-vector . ,subtag-s16-vector )
741 (:unsigned-16-bit-vector . ,subtag-u16-vector )
742 (:signed-32-bit-vector . ,subtag-s32-vector )
743 (:unsigned-32-bit-vector . ,subtag-u32-vector )
744 (:fixnum-vector . ,subtag-fixnum-vector)
745 (:signed-64-bit-vector . ,subtag-s64-vector)
746 (:unsigned-64-bit-vector . ,subtag-u64-vector)
747 (:single-float-vector . ,subtag-single-float-vector)
748 (:double-float-vector . ,subtag-double-float-vector )
749 (:simple-vector . ,subtag-simple-vector )
750 (:vector-header . ,subtag-vectorH)
751 (:array-header . ,subtag-arrayH)))
752
753;;; This should return NIL unless it's sure of how the indicated
754;;; type would be represented (in particular, it should return
755;;; NIL if the element type is unknown or unspecified at compile-time.
756(defun ppc64-array-type-name-from-ctype (ctype)
757 (when (typep ctype 'ccl::array-ctype)
758 (let* ((element-type (ccl::array-ctype-element-type ctype)))
759 (typecase element-type
760 (ccl::class-ctype
761 (let* ((class (ccl::class-ctype-class element-type)))
762 (if (or (eq class ccl::*character-class*)
763 (eq class ccl::*base-char-class*)
764 (eq class ccl::*standard-char-class*))
765 :simple-string
766 :simple-vector)))
767 (ccl::numeric-ctype
768 (if (eq (ccl::numeric-ctype-complexp element-type) :complex)
769 :simple-vector
770 (case (ccl::numeric-ctype-class element-type)
771 (integer
772 (let* ((low (ccl::numeric-ctype-low element-type))
773 (high (ccl::numeric-ctype-high element-type)))
774 (cond ((or (null low) (null high))
775 :simple-vector)
776 ((and (>= low 0) (<= high 1))
777 :bit-vector)
778 ((and (>= low 0) (<= high 255))
779 :unsigned-8-bit-vector)
780 ((and (>= low 0) (<= high 65535))
781 :unsigned-16-bit-vector)
782 ((and (>= low 0) (<= high #xffffffff))
783 :unsigned-32-bit-vector)
784 ((and (>= low 0) (<= high #xffffffffffffffff))
785 :unsigned-64-bit-vector)
786 ((and (>= low -128) (<= high 127))
787 :signed-8-bit-vector)
788 ((and (>= low -32768) (<= high 32767))
789 :signed-16-bit-vector)
790 ((and (>= low (ash -1 31)) (<= high (1- (ash 1 31))))
791 :signed-32-bit-vector)
792 ((and (>= low target-most-negative-fixnum)
793 (<= high target-most-positive-fixnum))
794 :fixnum-vector)
795 ((and (>= low (ash -1 63)) (<= high (1- (ash 1 63))))
796 :signed-64-bit-vector)
797 (t :simple-vector))))
798 (float
799 (case (ccl::numeric-ctype-format element-type)
800 ((double-float long-float) :double-float-vector)
801 ((single-float short-float) :single-float-vector)
802 (t :simple-vector)))
803 (t :simple-vector))))
804 (ccl::unknown-ctype)
805 (ccl::named-ctype
806 (if (eq element-type ccl::*universal-type*)
807 :simple-vector))
808 (t)))))
809
810(defun ppc64-misc-byte-count (subtag element-count)
811 (declare (fixnum subtag))
812 (if (= lowtag-nodeheader (logand subtag lowtagmask))
813 (ash element-count 3)
814 (case (logand subtag fulltagmask)
815 (#.ivector-class-64-bit (ash element-count 3))
816 (#.ivector-class-32-bit (ash element-count 2))
817 (#.ivector-class-8-bit element-count)
818 (t
819 (if (= subtag subtag-bit-vector)
820 (ash (+ 7 element-count) -3)
821 (ash element-count 1))))))
822
823(defparameter *ppc64-target-arch*
824 (arch::make-target-arch :name :ppc64
825 :lisp-node-size 8
826 :nil-value canonical-nil-value
827 :fixnum-shift fixnumshift
828 :most-positive-fixnum (1- (ash 1 (1- (- 64 fixnumshift))))
829 :most-negative-fixnum (- (ash 1 (1- (- 64 fixnumshift))))
830 :misc-data-offset misc-data-offset
831 :misc-dfloat-offset misc-dfloat-offset
832 :nbits-in-word 64
833 :ntagbits 4
834 :nlisptagbits 3
835 :uvector-subtags *ppc64-target-uvector-subtags*
836 :max-64-bit-constant-index max-64-bit-constant-index
837 :max-32-bit-constant-index max-32-bit-constant-index
838 :max-16-bit-constant-index max-16-bit-constant-index
839 :max-8-bit-constant-index max-8-bit-constant-index
840 :max-1-bit-constant-index max-1-bit-constant-index
841 :word-shift 3
842 :code-vector-prefix '(#$"CODE")
843 :gvector-types '(:ratio :complex :symbol :function
844 :catch-frame :struct :istruct
845 :pool :population :hash-vector
846 :package :value-cell :instance
847 :lock :slot-vector
848 :simple-vector)
849 :1-bit-ivector-types '(:bit-vector)
850 :8-bit-ivector-types '(:signed-8-bit-vector
851 :unsigned-8-bit-vector)
852 :16-bit-ivector-types '(:signed-16-bit-vector
853 :unsigned-16-bit-vector)
854 :32-bit-ivector-types '(:signed-32-bit-vector
855 :unsigned-32-bit-vector
856 :single-float-vector
857 :double-float
858 :bignum
859 :simple-string)
860 :64-bit-ivector-types '(:double-float-vector
861 :unsigned-64-bit-vector
862 :signed-64-bit-vector
863 :fixnum-vector)
864 :array-type-name-from-ctype-function
865 #'ppc64-array-type-name-from-ctype
866 :package-name "PPC64"
867 :t-offset t-offset
868 :array-data-size-function #'ppc64-misc-byte-count
869 :numeric-type-name-to-typecode-function
870 #'(lambda (type-name)
871 (ecase type-name
872 (fixnum tag-fixnum)
873 (bignum subtag-bignum)
874 ((short-float single-float) subtag-single-float)
875 ((long-float double-float) subtag-double-float)
876 (ratio subtag-ratio)
877 (complex subtag-complex)))
878 :subprims-base ppc::*ppc-subprims-base*
879 :subprims-shift ppc::*ppc-subprims-shift*
880 :subprims-table ppc::*ppc-subprims*
881 :primitive->subprims `(((0 . 23) . ,(ccl::%subprim-name->offset '.SPbuiltin-plus ppc::*ppc-subprims*)))
882 :unbound-marker-value unbound-marker
883 :slot-unbound-marker-value slot-unbound-marker
884 :fixnum-tag tag-fixnum
885 :single-float-tag subtag-single-float
886 :single-float-tag-is-subtag nil
887 :double-float-tag subtag-double-float
888 :cons-tag fulltag-cons
889 :null-tag subtag-symbol
890 :symbol-tag subtag-symbol
891 :symbol-tag-is-subtag t
892 :function-tag subtag-function
893 :function-tag-is-subtag t
894 :big-endian t
895 :misc-subtag-offset misc-subtag-offset
896 :car-offset cons.car
897 :cdr-offset cons.cdr
898 :subtag-char subtag-character
899 :charcode-shift charcode-shift
900 :fulltagmask fulltagmask
901 :fulltag-misc fulltag-misc
902 :char-code-limit #x110000
903 ))
904
905;;; arch macros
906(defmacro defppc64archmacro (name lambda-list &body body)
907 `(arch::defarchmacro :ppc64 ,name ,lambda-list ,@body))
908
909(defppc64archmacro ccl::%make-sfloat ()
910 (error "~s shouldn't be used in code targeting :PPC64" 'ccl::%make-sfloat))
911
912(defppc64archmacro ccl::%make-dfloat ()
913 `(ccl::%alloc-misc ppc64::double-float.element-count ppc64::subtag-double-float))
914
915(defppc64archmacro ccl::%numerator (x)
916 `(ccl::%svref ,x ppc64::ratio.numer-cell))
917
918(defppc64archmacro ccl::%denominator (x)
919 `(ccl::%svref ,x ppc64::ratio.denom-cell))
920
921(defppc64archmacro ccl::%realpart (x)
922 `(ccl::%svref ,x ppc64::complex.realpart-cell))
923
924(defppc64archmacro ccl::%imagpart (x)
925 `(ccl::%svref ,x ppc64::complex.imagpart-cell))
926
927;;;
928(defppc64archmacro ccl::%get-single-float-from-double-ptr (ptr offset)
929 `(ccl::%double-float->short-float (ccl::%get-double-float ,ptr ,offset)))
930
931(defppc64archmacro ccl::codevec-header-p (word)
932 `(eql ,word #$"CODE"))
933
934;;;
935
936(defppc64archmacro ccl::immediate-p-macro (thing)
937 (let* ((tag (gensym)))
938 `(let* ((,tag (ccl::lisptag ,thing)))
939 (declare (fixnum ,tag))
940 (or (= ,tag ppc64::tag-fixnum)
941 (= (logand ,tag ppc64::lowtagmask) ppc64::lowtag-imm)))))
942
943(defppc64archmacro ccl::hashed-by-identity (thing)
944 (let* ((typecode (gensym)))
945 `(let* ((,typecode (ccl::typecode ,thing)))
946 (declare (fixnum ,typecode))
947 (or
948 (= ,typecode ppc64::tag-fixnum)
949 (= (logand ,typecode ppc64::lowtagmask) ppc64::lowtag-imm)
950 (= ,typecode ppc64::subtag-symbol)
951 (= ,typecode ppc64::subtag-instance)))))
952
953;;;
954(defppc64archmacro ccl::%get-kernel-global (name)
955 `(ccl::%fixnum-ref 0 (+ ,(ccl::target-nil-value)
956 ,(%kernel-global
957 (if (ccl::quoted-form-p name)
958 (cadr name)
959 name)))))
960
961(defppc64archmacro ccl::%get-kernel-global-ptr (name dest)
962 `(ccl::%setf-macptr
963 ,dest
964 (ccl::%fixnum-ref-macptr 0 (+ ,(ccl::target-nil-value)
965 ,(%kernel-global
966 (if (ccl::quoted-form-p name)
967 (cadr name)
968 name))))))
969
970(defppc64archmacro ccl::%target-kernel-global (name)
971 `(ppc64::%kernel-global ,name))
972
973(defppc64archmacro ccl::lfun-vector (fn)
974 fn)
975
976(defppc64archmacro ccl::lfun-vector-lfun (lfv)
977 lfv)
978
979(defppc64archmacro ccl::area-code ()
980 area.code)
981
982(defppc64archmacro ccl::area-succ ()
983 area.succ)
984
985
986(defppc64archmacro ccl::nth-immediate (f i)
987 `(ccl::%svref ,f ,i))
988
989(defppc64archmacro ccl::set-nth-immediate (f i new)
990 `(setf (ccl::%svref ,f ,i) ,new))
991
992
993(defppc64archmacro ccl::symptr->symvector (s)
994 s)
995
996(defppc64archmacro ccl::symvector->symptr (s)
997 s)
998
999(defppc64archmacro ccl::function-to-function-vector (f)
1000 f)
1001
1002(defppc64archmacro ccl::function-vector-to-function (v)
1003 v)
1004
1005(defppc64archmacro ccl::with-ffcall-results ((buf) &body body)
1006 (let* ((size (+ (* 8 8) (* 13 8))))
1007 `(ccl::%stack-block ((,buf ,size))
1008 ,@body)))
1009
1010(defconstant arg-check-trap-pc-limit 8)
1011
1012(provide "PPC64-ARCH")
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