Author: mav
Date: Sun Jan 22 15:44:20 2012
New Revision: 230465
URL: http://svn.freebsd.org/changeset/base/230465
Log:
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.
Modified:
head/sys/dev/sound/pci/hda/hdaa.c
head/sys/dev/sound/pci/hda/hdac.c
head/sys/dev/sound/pci/hda/hdac.h
Modified: head/sys/dev/sound/pci/hda/hdaa.c
==============================================================================
--- head/sys/dev/sound/pci/hda/hdaa.c Sun Jan 22 14:04:42 2012
(r230464)
+++ head/sys/dev/sound/pci/hda/hdaa.c Sun Jan 22 15:44:20 2012
(r230465)
@@ -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");
Modified: head/sys/dev/sound/pci/hda/hdac.c
==============================================================================
--- head/sys/dev/sound/pci/hda/hdac.c Sun Jan 22 14:04:42 2012
(r230464)
+++ head/sys/dev/sound/pci/hda/hdac.c Sun Jan 22 15:44:20 2012
(r230465)
@@ -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 {
Modified: head/sys/dev/sound/pci/hda/hdac.h
==============================================================================
--- head/sys/dev/sound/pci/hda/hdac.h Sun Jan 22 14:04:42 2012
(r230464)
+++ head/sys/dev/sound/pci/hda/hdac.h Sun Jan 22 15:44:20 2012
(r230465)
@@ -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) || \
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