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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>
68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config SND_HDA_CORE
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tristate
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select REGMAP
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config SND_HDA_DSP_LOADER
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bool
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config SND_HDA_ALIGNED_MMIO
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bool
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config SND_HDA_COMPONENT
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bool
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config SND_HDA_I915
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bool
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select SND_HDA_COMPONENT
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config SND_HDA_EXT_CORE
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tristate
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select SND_HDA_CORE
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config SND_HDA_PREALLOC_SIZE
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int "Pre-allocated buffer size for HD-audio driver"
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range 0 32768
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default 0 if SND_DMA_SGBUF
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default 64 if !SND_DMA_SGBUF
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help
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Specifies the default pre-allocated buffer-size in kB for the
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HD-audio driver. A larger buffer (e.g. 2048) is preferred
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for systems using PulseAudio. The default 64 is chosen just
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for compatibility reasons.
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On x86 systems, the default is zero as S/G allocation works
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and no preallocation is needed in most cases.
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Note that the pre-allocation size can be changed dynamically
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via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.
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config SND_INTEL_NHLT
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bool
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# this config should be selected only for Intel ACPI platforms.
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# A fallback is provided so that the code compiles in all cases.
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config SND_INTEL_DSP_CONFIG
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tristate
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select ACPI_NHLT if ACPI
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select SND_INTEL_NHLT if ACPI
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select SND_INTEL_SOUNDWIRE_ACPI if ACPI
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# this config should be selected only for Intel DSP platforms.
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# A fallback is provided so that the code compiles in all cases.
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config SND_INTEL_SOUNDWIRE_ACPI
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tristate
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config SND_INTEL_BYT_PREFER_SOF
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bool "Prefer SOF driver over SST on BY/CHT platforms"
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depends on SND_SST_ATOM_HIFI2_PLATFORM_ACPI && SND_SOC_SOF_BAYTRAIL
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default n
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help
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The kernel has 2 drivers for the Low Power Engine audio-block on
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Bay- and Cherry-Trail SoCs. The old SST driver and the new SOF
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driver. If both drivers are enabled then the kernel will default
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to using the old SST driver, unless told otherwise through the
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snd_intel_dspcfg.dsp_driver module-parameter.
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Set this option to Y to make the kernel default to the new SOF
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driver instead.
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