diff options
| -rw-r--r-- | include/sound/pcm.h | 74 | ||||
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 5 | ||||
| -rw-r--r-- | sound/core/pcm_lib.c | 3 | ||||
| -rw-r--r-- | sound/pci/rme9652/hdsp.c | 7 | ||||
| -rw-r--r-- | sound/pci/rme9652/hdspm.c | 4 |
5 files changed, 9 insertions, 84 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index c1729689161..0caf71e1694 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); void snd_pcm_vma_notify_data(void *client, void *data); int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); -#if BITS_PER_LONG >= 64 - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - *rem = *n % div; - *n /= div; -} - -#elif defined(i386) - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - u_int32_t low, high; - low = *n & 0xffffffff; - high = *n >> 32; - if (high) { - u_int32_t high1 = high % div; - high /= div; - asm("divl %2":"=a" (low), "=d" (*rem):"rm" (div), "a" (low), "d" (high1)); - *n = (u_int64_t)high << 32 | low; - } else { - *n = low / div; - *rem = low % div; - } -} -#else - -static inline void divl(u_int32_t high, u_int32_t low, - u_int32_t div, - u_int32_t *q, u_int32_t *r) -{ - u_int64_t n = (u_int64_t)high << 32 | low; - u_int64_t d = (u_int64_t)div << 31; - u_int32_t q1 = 0; - int c = 32; - while (n > 0xffffffffU) { - q1 <<= 1; - if (n >= d) { - n -= d; - q1 |= 1; - } - d >>= 1; - c--; - } - q1 <<= c; - if (n) { - low = n; - *q = q1 | (low / div); - *r = low % div; - } else { - *r = 0; - *q = q1; - } - return; -} - -static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem) -{ - u_int32_t low, high; - low = *n & 0xffffffff; - high = *n >> 32; - if (high) { - u_int32_t high1 = high % div; - u_int32_t low1 = low; - high /= div; - divl(high1, low1, div, &low, rem); - *n = (u_int64_t)high << 32 | low; - } else { - *n = low / div; - *rem = low % div; - } -} -#endif - /* * PCM library */ diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index dda000b9684..dbe406b8259 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -31,6 +31,7 @@ #include <linux/time.h> #include <linux/vmalloc.h> #include <linux/moduleparam.h> +#include <linux/math64.h> #include <linux/string.h> #include <sound/core.h> #include <sound/minors.h> @@ -617,9 +618,7 @@ static long snd_pcm_oss_bytes(struct snd_pcm_substream *substream, long frames) #else { u64 bsize = (u64)runtime->oss.buffer_bytes * (u64)bytes; - u32 rem; - div64_32(&bsize, buffer_size, &rem); - return (long)bsize; + return div_u64(bsize, buffer_size); } #endif } diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index d659995ac3a..a7482874c45 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -22,6 +22,7 @@ #include <linux/slab.h> #include <linux/time.h> +#include <linux/math64.h> #include <sound/core.h> #include <sound/control.h> #include <sound/info.h> @@ -452,7 +453,7 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b, *r = 0; return UINT_MAX; } - div64_32(&n, c, r); + n = div_u64_rem(n, c, r); if (n >= UINT_MAX) { *r = 0; return UINT_MAX; diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c index 314e73531bd..bcfdbb5ebc4 100644 --- a/sound/pci/rme9652/hdsp.c +++ b/sound/pci/rme9652/hdsp.c @@ -28,6 +28,7 @@ #include <linux/pci.h> #include <linux/firmware.h> #include <linux/moduleparam.h> +#include <linux/math64.h> #include <sound/core.h> #include <sound/control.h> @@ -1047,7 +1048,6 @@ static int hdsp_set_interrupt_interval(struct hdsp *s, unsigned int frames) static void hdsp_set_dds_value(struct hdsp *hdsp, int rate) { u64 n; - u32 r; if (rate >= 112000) rate /= 4; @@ -1055,7 +1055,7 @@ static void hdsp_set_dds_value(struct hdsp *hdsp, int rate) rate /= 2; n = DDS_NUMERATOR; - div64_32(&n, rate, &r); + n = div_u64(n, rate); /* n should be less than 2^32 for being written to FREQ register */ snd_BUG_ON(n >> 32); /* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS @@ -3097,7 +3097,6 @@ static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct sn static int hdsp_dds_offset(struct hdsp *hdsp) { u64 n; - u32 r; unsigned int dds_value = hdsp->dds_value; int system_sample_rate = hdsp->system_sample_rate; @@ -3109,7 +3108,7 @@ static int hdsp_dds_offset(struct hdsp *hdsp) * dds_value = n / rate * rate = n / dds_value */ - div64_32(&n, dds_value, &r); + n = div_u64(n, dds_value); if (system_sample_rate >= 112000) n *= 4; else if (system_sample_rate >= 56000) diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index bac2dc0c5d8..0dce331a2a3 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -29,6 +29,7 @@ #include <linux/moduleparam.h> #include <linux/slab.h> #include <linux/pci.h> +#include <linux/math64.h> #include <asm/io.h> #include <sound/core.h> @@ -831,7 +832,6 @@ static int hdspm_set_interrupt_interval(struct hdspm * s, unsigned int frames) static void hdspm_set_dds_value(struct hdspm *hdspm, int rate) { u64 n; - u32 r; if (rate >= 112000) rate /= 4; @@ -844,7 +844,7 @@ static void hdspm_set_dds_value(struct hdspm *hdspm, int rate) */ /* n = 104857600000000ULL; */ /* = 2^20 * 10^8 */ n = 110100480000000ULL; /* Value checked for AES32 and MADI */ - div64_32(&n, rate, &r); + n = div_u64(n, rate); /* n should be less than 2^32 for being written to FREQ register */ snd_BUG_ON(n >> 32); hdspm_write(hdspm, HDSPM_freqReg, (u32)n); |