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-rw-r--r--arch/powerpc/kernel/misc_64.S181
1 files changed, 4 insertions, 177 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index 6bf4a4637209..580891cb8ccb 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -1,14 +1,12 @@
1/* 1/*
2 * arch/powerpc/kernel/misc64.S
3 *
4 * This file contains miscellaneous low-level functions. 2 * This file contains miscellaneous low-level functions.
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) 3 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 * 4 *
7 * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) 5 * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
8 * and Paul Mackerras. 6 * and Paul Mackerras.
9 * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com) 7 * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
10 * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) 8 * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
11 * 9 *
12 * This program is free software; you can redistribute it and/or 10 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License 11 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 12 * as published by the Free Software Foundation; either version
@@ -30,41 +28,10 @@
30 28
31 .text 29 .text
32 30
33/*
34 * Returns (address we are running at) - (address we were linked at)
35 * for use before the text and data are mapped to KERNELBASE.
36 */
37
38_GLOBAL(reloc_offset)
39 mflr r0
40 bl 1f
411: mflr r3
42 LOAD_REG_IMMEDIATE(r4,1b)
43 subf r3,r4,r3
44 mtlr r0
45 blr
46
47/*
48 * add_reloc_offset(x) returns x + reloc_offset().
49 */
50_GLOBAL(add_reloc_offset)
51 mflr r0
52 bl 1f
531: mflr r5
54 LOAD_REG_IMMEDIATE(r4,1b)
55 subf r5,r4,r5
56 add r3,r3,r5
57 mtlr r0
58 blr
59
60_GLOBAL(get_msr) 31_GLOBAL(get_msr)
61 mfmsr r3 32 mfmsr r3
62 blr 33 blr
63 34
64_GLOBAL(get_dar)
65 mfdar r3
66 blr
67
68_GLOBAL(get_srr0) 35_GLOBAL(get_srr0)
69 mfsrr0 r3 36 mfsrr0 r3
70 blr 37 blr
@@ -72,10 +39,6 @@ _GLOBAL(get_srr0)
72_GLOBAL(get_srr1) 39_GLOBAL(get_srr1)
73 mfsrr1 r3 40 mfsrr1 r3
74 blr 41 blr
75
76_GLOBAL(get_sp)
77 mr r3,r1
78 blr
79 42
80#ifdef CONFIG_IRQSTACKS 43#ifdef CONFIG_IRQSTACKS
81_GLOBAL(call_do_softirq) 44_GLOBAL(call_do_softirq)
@@ -281,144 +244,6 @@ _GLOBAL(__flush_dcache_icache)
281 bdnz 1b 244 bdnz 1b
282 isync 245 isync
283 blr 246 blr
284
285/*
286 * I/O string operations
287 *
288 * insb(port, buf, len)
289 * outsb(port, buf, len)
290 * insw(port, buf, len)
291 * outsw(port, buf, len)
292 * insl(port, buf, len)
293 * outsl(port, buf, len)
294 * insw_ns(port, buf, len)
295 * outsw_ns(port, buf, len)
296 * insl_ns(port, buf, len)
297 * outsl_ns(port, buf, len)
298 *
299 * The *_ns versions don't do byte-swapping.
300 */
301_GLOBAL(_insb)
302 cmpwi 0,r5,0
303 mtctr r5
304 subi r4,r4,1
305 blelr-
30600: lbz r5,0(r3)
307 eieio
308 stbu r5,1(r4)
309 bdnz 00b
310 twi 0,r5,0
311 isync
312 blr
313
314_GLOBAL(_outsb)
315 cmpwi 0,r5,0
316 mtctr r5
317 subi r4,r4,1
318 blelr-
31900: lbzu r5,1(r4)
320 stb r5,0(r3)
321 bdnz 00b
322 sync
323 blr
324
325_GLOBAL(_insw)
326 cmpwi 0,r5,0
327 mtctr r5
328 subi r4,r4,2
329 blelr-
33000: lhbrx r5,0,r3
331 eieio
332 sthu r5,2(r4)
333 bdnz 00b
334 twi 0,r5,0
335 isync
336 blr
337
338_GLOBAL(_outsw)
339 cmpwi 0,r5,0
340 mtctr r5
341 subi r4,r4,2
342 blelr-
34300: lhzu r5,2(r4)
344 sthbrx r5,0,r3
345 bdnz 00b
346 sync
347 blr
348
349_GLOBAL(_insl)
350 cmpwi 0,r5,0
351 mtctr r5
352 subi r4,r4,4
353 blelr-
35400: lwbrx r5,0,r3
355 eieio
356 stwu r5,4(r4)
357 bdnz 00b
358 twi 0,r5,0
359 isync
360 blr
361
362_GLOBAL(_outsl)
363 cmpwi 0,r5,0
364 mtctr r5
365 subi r4,r4,4
366 blelr-
36700: lwzu r5,4(r4)
368 stwbrx r5,0,r3
369 bdnz 00b
370 sync
371 blr
372
373/* _GLOBAL(ide_insw) now in drivers/ide/ide-iops.c */
374_GLOBAL(_insw_ns)
375 cmpwi 0,r5,0
376 mtctr r5
377 subi r4,r4,2
378 blelr-
37900: lhz r5,0(r3)
380 eieio
381 sthu r5,2(r4)
382 bdnz 00b
383 twi 0,r5,0
384 isync
385 blr
386
387/* _GLOBAL(ide_outsw) now in drivers/ide/ide-iops.c */
388_GLOBAL(_outsw_ns)
389 cmpwi 0,r5,0
390 mtctr r5
391 subi r4,r4,2
392 blelr-
39300: lhzu r5,2(r4)
394 sth r5,0(r3)
395 bdnz 00b
396 sync
397 blr
398
399_GLOBAL(_insl_ns)
400 cmpwi 0,r5,0
401 mtctr r5
402 subi r4,r4,4
403 blelr-
40400: lwz r5,0(r3)
405 eieio
406 stwu r5,4(r4)
407 bdnz 00b
408 twi 0,r5,0
409 isync
410 blr
411
412_GLOBAL(_outsl_ns)
413 cmpwi 0,r5,0
414 mtctr r5
415 subi r4,r4,4
416 blelr-
41700: lwzu r5,4(r4)
418 stw r5,0(r3)
419 bdnz 00b
420 sync
421 blr
422 247
423/* 248/*
424 * identify_cpu and calls setup_cpu 249 * identify_cpu and calls setup_cpu
@@ -563,6 +388,7 @@ _GLOBAL(real_writeb)
563 blr 388 blr
564#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */ 389#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
565 390
391#ifdef CONFIG_CPU_FREQ_PMAC64
566/* 392/*
567 * SCOM access functions for 970 (FX only for now) 393 * SCOM access functions for 970 (FX only for now)
568 * 394 *
@@ -631,6 +457,7 @@ _GLOBAL(scom970_write)
631 /* restore interrupts */ 457 /* restore interrupts */
632 mtmsrd r5,1 458 mtmsrd r5,1
633 blr 459 blr
460#endif /* CONFIG_CPU_FREQ_PMAC64 */
634 461
635 462
636/* 463/*
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