linux-yocto/sound/hda/Kconfig
Takashi Iwai 63e38d0787 ALSA: hda: Allow the default preallocation for x86 again
Since there are a few corner cases where the S/G buffer allocation
isn't performed (e.g. depending on IOMMU implementations), it'd be
better to allow the default buffer preallocation size for x86, too.

The default for x86 is still kept to 0, as it should work in most
cases.

Link: https://patch.msgid.link/20240907084129.28802-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-07 10:42:03 +02:00

1.9 KiB

SPDX-License-Identifier: GPL-2.0-only

config SND_HDA_CORE tristate select REGMAP

config SND_HDA_DSP_LOADER bool

config SND_HDA_ALIGNED_MMIO bool

config SND_HDA_COMPONENT bool

config SND_HDA_I915 bool select SND_HDA_COMPONENT

config SND_HDA_EXT_CORE tristate select SND_HDA_CORE

config SND_HDA_PREALLOC_SIZE int "Pre-allocated buffer size for HD-audio driver" range 0 32768 default 0 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 S/G allocation works and no preallocation is needed in most cases.

  Note that the pre-allocation size can be changed dynamically
  via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.

config SND_INTEL_NHLT bool # this config should be selected only for Intel ACPI platforms. # A fallback is provided so that the code compiles in all cases.

config SND_INTEL_DSP_CONFIG tristate select ACPI_NHLT if ACPI select SND_INTEL_NHLT if ACPI select SND_INTEL_SOUNDWIRE_ACPI if ACPI # this config should be selected only for Intel DSP platforms. # A fallback is provided so that the code compiles in all cases.

config SND_INTEL_SOUNDWIRE_ACPI tristate

config SND_INTEL_BYT_PREFER_SOF bool "Prefer SOF driver over SST on BY/CHT platforms" depends on SND_SST_ATOM_HIFI2_PLATFORM_ACPI && SND_SOC_SOF_BAYTRAIL default n help The kernel has 2 drivers for the Low Power Engine audio-block on Bay- and Cherry-Trail SoCs. The old SST driver and the new SOF driver. If both drivers are enabled then the kernel will default to using the old SST driver, unless told otherwise through the snd_intel_dspcfg.dsp_driver module-parameter.

  Set this option to Y to make the kernel default to the new SOF
  driver instead.