linux_dsm_epyc7002/sound
Takashi Iwai 27fe48d972 ALSA: hda - Add snoop option
Added a new option "snoop" for the traffic control of the HD-audio
controller chip.  When set to 0, the non-snooping mode is used with
the traffic control bit is set in each stream control register.
This may allow better operations in the low power mode, but the actual
implementation is depending pretty much on the chipset.

As already implemented, more or less each chipset has own snoop-control
register bit.  Now this setup refers to the snoop option, too.

Also, a new VIA chipset may require the non-snooping mode when set so
in BIOS.  In such a case, the option value is overridden.

As default, it's still set to snoop=1 for keeping the same behavior as
before.  In near future, it'll be set to 0 as default after checking
it works in every system well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-28 20:11:36 +02:00
..
aoa ALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree 2011-08-20 09:27:04 +02:00
arm Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into for-2.6.39 2011-04-03 19:28:29 +09:00
atmel Merge branch 'master' into for-next 2011-07-11 14:15:55 +02:00
core ALSA: pcm - Export snd_pcm_lib_default_mmap() helper 2011-09-28 17:15:14 +02:00
drivers i8253: Make pcsp sound driver use the shared i8253_lock 2011-06-09 15:01:39 +02:00
firewire Merge branch 'fix/hda' into topic/misc 2011-06-17 14:54:47 +02:00
i2c [media] tea575x: remove useless input ioctls 2011-07-27 17:53:08 -03:00
isa snd_msnd ->mode is fmode_t, not mode_t 2011-07-26 12:59:29 -04:00
mips sound: Add missing spin_unlock 2010-05-27 09:47:02 +02:00
oss sound: pss - don't use the deprecated function check_region 2011-08-08 14:29:36 +02:00
parisc
pci ALSA: hda - Add snoop option 2011-09-28 20:11:36 +02:00
pcmcia ALSA: pcmcia - Use pcmcia_request_irq() 2011-07-08 10:11:35 +02:00
ppc treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
sh sound: sh: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 15:53:50 +09:00
soc ASoC: Ensure we generate a driver name 2011-09-21 14:54:23 +01:00
sparc atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
spi ALSA: atmel - update author email for ABDAC, AC97C and AT73C213 2011-06-28 16:56:07 +02:00
synth ALSA: emux: Add trivial compat ioctl handler 2010-09-14 16:18:11 +02:00
usb ALSA: usb-audio - clear chip->probing on error exit 2011-09-23 15:26:06 +02:00
ac97_bus.c sound: Fixed line limit issue in sound/ac97_bus.c 2010-12-06 16:09:49 +01:00
Kconfig ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver 2011-03-15 08:42:22 +01:00
last.c
Makefile ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver 2011-03-15 08:42:22 +01:00
sound_core.c sound: Use sound_register_*() for additional OSS minor devices 2011-03-09 20:10:37 +01:00
sound_firmware.c sound: read i_size with i_size_read() 2011-03-18 15:14:57 +01:00