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# 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
:1505. I have fixed it as suggested by Marek Szyprowski. First, I have replaced `pch->lock' with `pl330->lock' in functions `pl330_alloc_chan_resources' and `pl330_free_chan_resources'. This avoids the double-lock by acquiring a different lock than `dma_pl330_rqcb'. NOTE that, as a result, `pl330_free_chan_resources' executes `list_splice_tail_init' on `pch->work_list' under lock `pl330->lock', whereas in the rest of the code `pch->work_list' is protected by `pch->lock'. I don't know if this may cause race conditions. Similarly `pch->cyclic' is written by `pl330_alloc_chan_resources' under `pl330->lock' but read by `pl330_tx_submit' under `pch->lock'. Second, I have removed locking from `pl330_request_channel' and `pl330_release_channel' functions. Function `pl330_request_channel' is only called from `pl330_alloc_chan_resources', so the lock is already held. Function `pl330_release_channel' is called from `pl330_free_chan_resources', which already holds the lock, and from `pl330_del'. Function `pl330_del' is called in an error path of `pl330_probe' and at the end of `pl330_remove', but I assume that there cannot be concurrent accesses to the protected data at those points. Signed-off-by: Iago Abal <mail@iagoabal.eu> Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'tools/perf/arch/powerpc/util/kvm-stat.c')