mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-19 10:53:58 +00:00
Code Issues Releases Activity

Increase snd_hda(4) default maximal buffer size from 16K to 64K and

Browse Source 
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.
This commit is contained in:
Alexander Motin 2012-01-22 15:44:20 +00:00
parent a6fdf2db3c
commit 661268263e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=230465
3 changed files with 12 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/dev/sound/pci/hda/hdaa.c
View File

@ -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");

11
sys/dev/sound/pci/hda/hdac.c
View File

@ -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 {

12
sys/dev/sound/pci/hda/hdac.h
View File

@ -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) || \