On Wednesday, October 14, 2015 04:15:41 PM Srinivas Pandruvada wrote:

On Wed, 2015-10-14 at 02:52 +0200, Rafael J. Wysocki wrote:

quoted

On Tuesday, September 29, 2015 03:54:02 PM Srinivas Pandruvada wrote:

quoted

This series enhances Intel P state drivers with the following
features:
- When max_perf_pct is reduced in turbo range, we can change the
turbo ratios
when platform allows. This is particularly useful in limiting
performance with
HWP where whole range is turbo.
- Use Turbo Activation Ratio, when calculating max non turbo P
state. This will
show now correct percentage in turbo range
- To calculate busy percent, the estimate is not correct when the
max non turbo
is limited by tar, hence using physical max non turbo as before.
- Use ACPI _PSS and _PPC in intel_ptate driver.
- Avoid calculation for P state control value when cpufreq policy
requests
frequency limits when matched in _PSS. Sometime calculations causes
reduced
control value in boundary conditions.
Although they are independent patches, sending as series to help
applying and
testing.
I appreciate review and testing on multiple platforms.

v3:
- Added function : convert_to_native_pstate_format to convert from
perf_ctl value to pstate used ratios.
- Fix bug identified by Rafael

v2:
- When CONFIG_ACPI not defined, then acpi/processor.h can't be
included.
Also some variables will be unused when CONFIG_ACPI is not defined,
so there
were warnings. Fixed all these compile issues.

v1:
- Change the command line option to "no_acpi"
- changed kernel parameter documentation file and added "no_acpi"
parameter
- pr_debug prefixed with "intel_pstate" as suggested by Doug
- Changed the logic to determine turbo freq in _PSS using odd/even
convention,
although this is the way it is defined in _PSS. But atleast two
reviewers has
questioned the source of this. This is defined usually in non
public documents
like BIOS writer guides. Now using the control field value to
determine the
turbo and non turbo max.
- Fix the Kconfig dependency on ACPI for ACPI_PROCESSOR
- multi line comment styles

v0:
Base version

Srinivas Pandruvada (6):
  cpufreq: intel_p_state: Fix limiting turbo sub states
  cpufreq: intel_pstate: get P1 from TAR when available
  cpufreq: intel-pstate: Use separate max pstate for scaling
  cpufreq: intel_pstate: Use ACPI perf configuration
  Documentation: kernel_parameters for Intel P state driver
  cpufreq: intel_pstate: Avoid calculation for max/min

I'm waiting for an update of [1/6].

If any of [2-6/6] do not depend on it (ie. can be applied
separately),
please let me know.

Other patches don't depend on this, but will not apply because of line
number change. I submitted v4 by removing this patch with Kristen's
ACK. I will submit this patch 1/6 separately.

OK, thanks!

Rafael