perf/x86/intel/rapl: Make package handling more robust

The package management code in RAPL relies on package mapping being
available before a CPU is started. This changed with:

  9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")

because the ACPI/BIOS information turned out to be unreliable, but that
left RAPL in broken state. This was not noticed because on a regular boot
all CPUs are online before RAPL is initialized.

A possible fix would be to reintroduce the mess which allocates a package
data structure in CPU prepare and when it turns out to already exist in
starting throw it away later in the CPU online callback. But that's a
horrible hack and not required at all because RAPL becomes functional for
perf only in the CPU online callback. That's correct because user space is
not yet informed about the CPU being onlined, so nothing caan rely on RAPL
being available on that particular CPU.

Move the allocation to the CPU online callback and simplify the hotplug
handling. At this point the package mapping is established and correct.

This also adds a missing check for available package data in the
event_init() function.

Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")
Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

path: root/sound/soc/adi/Kconfig

config SND_SOC_ADI
	tristate "Audio support for Analog Devices reference designs"
	depends on MICROBLAZE || ARCH_ZYNQ || COMPILE_TEST
	help
	  Audio support for various reference designs by Analog Devices.

config SND_SOC_ADI_AXI_I2S
	tristate "AXI-I2S support"
	depends on SND_SOC_ADI
	select SND_SOC_GENERIC_DMAENGINE_PCM
	select REGMAP_MMIO
	help
	  ASoC driver for the Analog Devices AXI-I2S softcore peripheral.

config SND_SOC_ADI_AXI_SPDIF
	tristate "AXI-SPDIF support"
	depends on SND_SOC_ADI
	select SND_SOC_GENERIC_DMAENGINE_PCM
	select REGMAP_MMIO
	help
	  ASoC driver for the Analog Devices AXI-SPDIF softcore peripheral.