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authorPaolo Bonzini <pbonzini@redhat.com>2020-05-13 12:14:05 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2020-05-13 12:14:05 -0400
commit4aef2ec9022b217f74d0f4c9b84081f07cc223d9 (patch)
treeedf9bb9ca1f8ab6345c156a7e87aaed28939f66c /sound/hda/Kconfig
parent7c67f54661fcc8d141fb11abbab1739f32e13b03 (diff)
parent37486135d3a7b03acc7755b63627a130437f066a (diff)
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Merge branch 'kvm-amd-fixes' into HEAD
Diffstat (limited to 'sound/hda/Kconfig')
-rw-r--r--sound/hda/Kconfig7
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/hda/Kconfig b/sound/hda/Kconfig
index 4ca6b09056f3..3bc9224d5e4f 100644
--- a/sound/hda/Kconfig
+++ b/sound/hda/Kconfig
@@ -21,16 +21,17 @@ config SND_HDA_EXT_CORE
select SND_HDA_CORE
config SND_HDA_PREALLOC_SIZE
- int "Pre-allocated buffer size for HD-audio driver" if !SND_DMA_SGBUF
+ int "Pre-allocated buffer size for HD-audio driver"
range 0 32768
- default 0 if SND_DMA_SGBUF
+ default 2048 if SND_DMA_SGBUF
default 64 if !SND_DMA_SGBUF
help
Specifies the default pre-allocated buffer-size in kB for the
HD-audio driver. A larger buffer (e.g. 2048) is preferred
for systems using PulseAudio. The default 64 is chosen just
for compatibility reasons.
- On x86 systems, the default is zero as we need no preallocation.
+ On x86 systems, the default is 2048 as a reasonable value for
+ most of modern systems.
Note that the pre-allocation size can be changed dynamically
via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.