[lkml]   [2015]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subject[PATCH v2 00/10] hwmon: (fam15h_power) Introduce an accumulated power reporting algorithm
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


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")


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
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.


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
hwmon: (fam15h_power) Add documentation for previous TDP reporting
hwmon: (fam15h_power) Add documentation for accumulated power
MAINTAINERS: change the maintainer of fam15h_power driver

CREDITS | 8 ++
Documentation/hwmon/fam15h_power | 56 +++++++-
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(-)


 \ /
  Last update: 2015-10-20 05:21    [W:0.370 / U:2.936 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site