[GIT PULL] arm64: perf updates for 4.6

From: Will Deacon
Date: Mon Mar 21 2016 - 12:16:37 EST

Hi Linus,

I have another mixed bag of ARM-related perf patches here. It's about
25% CPU and 75% interconnect, but with drivers/bus/ languishing without
an obvious maintainer or tree, Olof and I agreed to keep all of these
PMU patches together. I suspect a whole load of code from drivers/bus/arm-*
can be moved under drivers/perf/, so that's on the radar for the future.

In the meantime, please pull. Headlines in the tag.



The following changes since commit 92e963f50fc74041b5e9e744c330dca48e04f08d:

Linux 4.5-rc1 (2016-01-24 13:06:47 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-perf

for you to fetch changes up to 357b565d5d52b2dc2a51390eb8f887a9caa8597f:

drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree (2016-03-21 11:36:17 +0000)

arm[64] perf updates for 4.6:

- Initial support for ARMv8.1 CPU PMUs

- Support for the CPU PMU in Cavium ThunderX

- CPU PMU support for systems running 32-bit Linux in secure mode

- Support for the system PMU in ARM CCI-550 (Cache Coherent Interconnect)

Andrzej Hajda (1):
arm-cci: fix handling cpumask_any_but return value

Dirk Behme (1):
drivers/perf: arm_pmu: make info messages more verbose

Jan Glauber (5):
arm64: perf: Rename Cortex A57 events
arm64/perf: Add Cavium ThunderX PMU support
arm64: perf: Enable PMCR long cycle counter bit
arm64: perf: Extend event mask for ARMv8.1
arm64: dts: Add Cavium ThunderX specific PMU

Lorenzo Pieralisi (1):
drivers/perf: arm_pmu: implement CPU_PM notifier

Mark Rutland (1):
arm-cci: simplify sysfs attr handling

Martin Fuzzey (1):
ARM: perf: Set ARMv7 SDER SUNIDEN bit

Suzuki K Poulose (11):
arm-cci: Group writes to counter
arm-cci: Refactor CCI PMU enable/disable methods
arm-cci: Delay PMU counter writes to pmu::pmu_enable
arm-cci: write_counter: Remove redundant check
arm-cci: Get the status of a counter
arm-cci: Add routines to save/restore all counters
arm-cci: Add helper to enable PMU without synchornising counters
arm-cci: Provide hook for writing to PMU counters
arm-cci: CCI-500: Work around PMU counter writes
arm-cci500: Rearrange PMU driver for code sharing with CCI-550 PMU
arm-cci: CoreLink CCI-550 PMU driver

Will Deacon (5):
arm-cci: make private functions static
arm-cci: don't return value from void function
arm-cci: remove unused variable
arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC
drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree

Documentation/devicetree/bindings/arm/cci.txt | 2 +
Documentation/devicetree/bindings/arm/pmu.txt | 11 +
arch/arm/kernel/perf_event_v7.c | 13 +-
arch/arm64/boot/dts/cavium/thunder-88xx.dtsi | 5 +
arch/arm64/kernel/perf_event.c | 122 ++++-
drivers/bus/Kconfig | 10 +-
drivers/bus/arm-cci.c | 621 ++++++++++++++++++--------
drivers/perf/arm_pmu.c | 109 ++++-
include/linux/perf/arm_pmu.h | 2 +
9 files changed, 667 insertions(+), 228 deletions(-)