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f4b4bdf29a
This reverts commitf8e4ae10de("ALSA: hda: Allow setting preallocation again for x86"). The reverted commit itself is a revert ofc31427d0d2("ALSA: hda: No preallocation on x86 platforms"). It was needed because HDA allowed very big allocations, up to 1GB per stream. However as previous commit in this series changes maximum allowed allocation per stream to 4MB, we can safely revert it back. On systems where there are a lot of FrontEnds, when CONFIG_SND_HDA_PREALLOC_SIZE != 0 ALSA core allocates memory for each FE, which may cause out of memory problems due to per card limit. Force config to 0 on X86, so memory will be allocated on as needed basis. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=201251#c322 Suggested-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20210318160618.2504068-4-amadeuszx.slawinski@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
65 lines
1.9 KiB
Text
65 lines
1.9 KiB
Text
# 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" if !SND_DMA_SGBUF
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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 we need no preallocation.
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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 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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