kernel_optimize_test/sound
Keyon Jie e582f4832a
ASoC: SOF: pcm: skip DMA buffer pre-allocation
As discussion in ALSA https://patchwork.kernel.org/patch/11336023/, it
is suggested to skip DMA buffer pre-allocation with passing size=0 when
calling snd_pcm_set_managed_buffer(), to make the full buffer_bytes
range configured in topology file selectable from user space, here do
the corresponding change in SOF PCM driver to implement it.

This change doesn't have dependency to the change that Takashi will do
in the ALSA core by adding total_pcm_alloc_bytes limitation to the
struct snd_card, it passes tests both with or without Takashi's coming
change on SOF CML platform.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Link: https://lore.kernel.org/r/20200228231850.9226-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-02 14:13:47 +00:00
..
ac97
aoa
arm
atmel
core
drivers
firewire
hda
i2c
isa
mips
oss
parisc
pci
pcmcia
ppc
sh
soc ASoC: SOF: pcm: skip DMA buffer pre-allocation 2020-03-02 14:13:47 +00:00
sparc
spi
synth
usb
x86
xen
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c