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Subject[PATCH v2 00/10] hwmon: (fam15h_power) Introduce an accumulated power reporting algorithm
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Hi all,

This serial of patches introduces an accumulated power reporting
algorithm. It will calculate the average power consumption for the
processor. The cpu feature flag is CPUID.8000_0007H:EDX[12].

This algorithm is used to test the comparison of processor power
consumption with between MWAITX delay and TSC delay on AMD Carrizo
platforms.

Reference:
http://marc.info/?l=linux-kernel&m=143874573111310&w=2

Commit f96756 at tip ("x86/asm: Add MONITORX/MWAITX instruction support")
Commit b466bd at tip ("x86/asm/delay: Introduce an MWAITX-based delay with a configurable timer")

V1: http://marc.info/?l=linux-kernel&m=144066380613299&w=2

Changes from v1 -> v2:
- Move fam15h_power_groups and fam15h_power_group into fam15h_power_data to
avoid overwrite on multi-CPU system.
- Rename FAM15H_MIN_NUM_ATTRS macro and fix return error code.
- Remove unnecessary warning print.
- Adds do_read_registers_on_cu to do all the read to all MSRs and run it on one
of the online cores on each compute unit with smp_call_function_many().
- Use power1_average and power1_average_interval standard entry
instread of power1_acc
- Fix the CPU-hotplug case.

A simple example:

ray@hr-ub:~/tip$ sensors
fam15h_power-pci-00c4
Adapter: PCI adapter
power1: 23.73 mW (avg = 634.63 mW, interval = 0.01 s)
(crit = 15.00 W)

...

These patches are rebased on groeck/hwmon-next.

Thanks,
Rui

Huang Rui (10):
hwmon: (fam15h_power) Refactor attributes for dynamically added
hwmon: (fam15h_power) Enable power1_input on AMD Carrizo
hwmon: (fam15h_power) Add max compute unit accumulated power
x86, amd: add accessor for number of cores per compute unit
hwmon: (fam15h_power) Add compute unit accumulated power
hwmon: (fam15h_power) Add ptsc counter value for accumulated power
hwmon: (fam15h_power) Introduce a cpu accumulated power reporting
algorithm
hwmon: (fam15h_power) Add documentation for previous TDP reporting
hwmon: (fam15h_power) Add documentation for accumulated power
algorithm
MAINTAINERS: change the maintainer of fam15h_power driver

CREDITS | 8 ++
Documentation/hwmon/fam15h_power | 56 +++++++-
MAINTAINERS | 4 +-
arch/x86/include/asm/msr-index.h | 1 +
arch/x86/include/asm/processor.h | 1 +
arch/x86/kernel/cpu/amd.c | 19 ++-
drivers/hwmon/fam15h_power.c | 274 +++++++++++++++++++++++++++++++++++----
7 files changed, 335 insertions(+), 28 deletions(-)

--
1.9.1



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