Revision a99b646afa8a02571ea298bedca6592d818229cd authored by dingtianhong on 15 August 2017, 03:23:23 UTC, committed by David S. Miller on 15 August 2017, 05:14:50 UTC
When bit4 is set in the PCIe Device Control register, it indicates whether the device is permitted to use relaxed ordering. On some platforms using relaxed ordering can have performance issues or due to erratum can cause data-corruption. In such cases devices must avoid using relaxed ordering. The patch adds a new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING to indicate that Relaxed Ordering (RO) attribute should not be used for Transaction Layer Packets (TLP) targeted towards these affected root complexes. This patch checks if there is any node in the hierarchy that indicates that using relaxed ordering is not safe. In such cases the patch turns off the relaxed ordering by clearing the capability for this device. Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Acked-by: Ashok Raj <ashok.raj@intel.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kconfig
# ALSA PowerMac drivers
menuconfig SND_PPC
bool "PowerPC sound devices"
depends on PPC
default y
help
Support for sound devices specific to PowerPC architectures.
if SND_PPC
config SND_POWERMAC
tristate "PowerMac (AWACS, DACA, Burgundy, Tumbler, Keywest)"
depends on I2C && INPUT && PPC_PMAC
select SND_PCM
select SND_VMASTER
help
Say Y here to include support for the integrated sound device.
To compile this driver as a module, choose M here: the module
will be called snd-powermac.
config SND_POWERMAC_AUTO_DRC
bool "Toggle DRC automatically at headphone/line plug-in"
depends on SND_POWERMAC
default y
help
Say Y here to enable the automatic toggle of DRC (dynamic
range compression) on Tumbler/Snapper.
If this feature is enabled, DRC is turned off when the
headphone/line jack is plugged, and turned on when unplugged.
Note that you can turn on/off DRC manually even without this
option.
config SND_PS3
tristate "PS3 Audio support"
depends on PS3_PS3AV
select SND_PCM
default m
help
Say Y here to include support for audio on the PS3
To compile this driver as a module, choose M here: the module
will be called snd_ps3.
config SND_PS3_DEFAULT_START_DELAY
int "Startup delay time in ms"
depends on SND_PS3
default "2000"
endif # SND_PPC
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