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-rw-r--r--include/sound/pcm.h74
1 files changed, 0 insertions, 74 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index c17296891617..0caf71e16944 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -486,80 +486,6 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream);
486void snd_pcm_vma_notify_data(void *client, void *data); 486void snd_pcm_vma_notify_data(void *client, void *data);
487int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); 487int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area);
488 488
489#if BITS_PER_LONG >= 64
490
491static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
492{
493 *rem = *n % div;
494 *n /= div;
495}
496
497#elif defined(i386)
498
499static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
500{
501 u_int32_t low, high;
502 low = *n & 0xffffffff;
503 high = *n >> 32;
504 if (high) {
505 u_int32_t high1 = high % div;
506 high /= div;
507 asm("divl %2":"=a" (low), "=d" (*rem):"rm" (div), "a" (low), "d" (high1));
508 *n = (u_int64_t)high << 32 | low;
509 } else {
510 *n = low / div;
511 *rem = low % div;
512 }
513}
514#else
515
516static inline void divl(u_int32_t high, u_int32_t low,
517 u_int32_t div,
518 u_int32_t *q, u_int32_t *r)
519{
520 u_int64_t n = (u_int64_t)high << 32 | low;
521 u_int64_t d = (u_int64_t)div << 31;
522 u_int32_t q1 = 0;
523 int c = 32;
524 while (n > 0xffffffffU) {
525 q1 <<= 1;
526 if (n >= d) {
527 n -= d;
528 q1 |= 1;
529 }
530 d >>= 1;
531 c--;
532 }
533 q1 <<= c;
534 if (n) {
535 low = n;
536 *q = q1 | (low / div);
537 *r = low % div;
538 } else {
539 *r = 0;
540 *q = q1;
541 }
542 return;
543}
544
545static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
546{
547 u_int32_t low, high;
548 low = *n & 0xffffffff;
549 high = *n >> 32;
550 if (high) {
551 u_int32_t high1 = high % div;
552 u_int32_t low1 = low;
553 high /= div;
554 divl(high1, low1, div, &low, rem);
555 *n = (u_int64_t)high << 32 | low;
556 } else {
557 *n = low / div;
558 *rem = low % div;
559 }
560}
561#endif
562
563/* 489/*
564 * PCM library 490 * PCM library
565 */ 491 */