diff options
| author | mav <mav@FreeBSD.org> | 2012-01-22 15:44:20 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2012-01-22 15:44:20 +0000 |
| commit | fc1df62a26053d47f27ceb29ae7488c5b0ed82fb (patch) | |
| tree | 399529107cd4e435a41fb060ff565631df4f5145 | |
| parent | 47a267281a18c3ec6dae857fa3d241f0291d5d7e (diff) | |
| download | FreeBSD-src-fc1df62a26053d47f27ceb29ae7488c5b0ed82fb.zip FreeBSD-src-fc1df62a26053d47f27ceb29ae7488c5b0ed82fb.tar.gz | |
Increase snd_hda(4) default maximal buffer size from 16K to 64K and
maximal from 64K to 256K.
We usually don't need 750 sound interrupts per second (1.3ms latency)
when playing 192K/24/8 stream. 187 should be better. On usual 48K/16/2
it is just enough for hw.snd.latency=9 at hw.snd.latency_profile=1 with
23 and 6 interrupts per second.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
| -rw-r--r-- | sys/dev/sound/pci/hda/hdaa.c | 11 | ||||
| -rw-r--r-- | sys/dev/sound/pci/hda/hdac.c | 11 | ||||
| -rw-r--r-- | sys/dev/sound/pci/hda/hdac.h | 12 |
3 files changed, 12 insertions, 22 deletions
diff --git a/sys/dev/sound/pci/hda/hdaa.c b/sys/dev/sound/pci/hda/hdaa.c index dbed570..5f9badb 100644 --- a/sys/dev/sound/pci/hda/hdaa.c +++ b/sys/dev/sound/pci/hda/hdaa.c @@ -74,17 +74,6 @@ static const struct { #define HDAA_QUIRKS_TAB_LEN \ (sizeof(hdaa_quirks_tab) / sizeof(hdaa_quirks_tab[0])) -#define HDA_BDL_MIN 2 -#define HDA_BDL_MAX 256 -#define HDA_BDL_DEFAULT HDA_BDL_MIN - -#define HDA_BLK_MIN HDA_DMA_ALIGNMENT -#define HDA_BLK_ALIGN (~(HDA_BLK_MIN - 1)) - -#define HDA_BUFSZ_MIN 4096 -#define HDA_BUFSZ_MAX 65536 -#define HDA_BUFSZ_DEFAULT 16384 - #define HDA_PARSE_MAXDEPTH 10 MALLOC_DEFINE(M_HDAA, "hdaa", "HDA Audio"); diff --git a/sys/dev/sound/pci/hda/hdac.c b/sys/dev/sound/pci/hda/hdac.c index da23e72..9c32cff 100644 --- a/sys/dev/sound/pci/hda/hdac.c +++ b/sys/dev/sound/pci/hda/hdac.c @@ -70,17 +70,6 @@ static const struct { #define HDAC_QUIRKS_TAB_LEN \ (sizeof(hdac_quirks_tab) / sizeof(hdac_quirks_tab[0])) -#define HDA_BDL_MIN 2 -#define HDA_BDL_MAX 256 -#define HDA_BDL_DEFAULT HDA_BDL_MIN - -#define HDA_BLK_MIN HDA_DMA_ALIGNMENT -#define HDA_BLK_ALIGN (~(HDA_BLK_MIN - 1)) - -#define HDA_BUFSZ_MIN 4096 -#define HDA_BUFSZ_MAX 65536 -#define HDA_BUFSZ_DEFAULT 16384 - MALLOC_DEFINE(M_HDAC, "hdac", "HDA Controller"); static const struct { diff --git a/sys/dev/sound/pci/hda/hdac.h b/sys/dev/sound/pci/hda/hdac.h index d4fa32b..71fae4f 100644 --- a/sys/dev/sound/pci/hda/hdac.h +++ b/sys/dev/sound/pci/hda/hdac.h @@ -521,6 +521,18 @@ ****************************************************************************/ #define HDA_DMA_ALIGNMENT 128 + +#define HDA_BDL_MIN 2 +#define HDA_BDL_MAX 256 +#define HDA_BDL_DEFAULT HDA_BDL_MIN + +#define HDA_BLK_MIN HDA_DMA_ALIGNMENT +#define HDA_BLK_ALIGN (~(HDA_BLK_MIN - 1)) + +#define HDA_BUFSZ_MIN (HDA_BDL_MIN * HDA_BLK_MIN) +#define HDA_BUFSZ_MAX 262144 +#define HDA_BUFSZ_DEFAULT 65536 + #define HDA_GPIO_MAX 8 #define HDA_DEV_MATCH(fl, v) ((fl) == (v) || \ |
