[PATCH RESEND v6 0/9] cpupower: Add AMD P-State Support

From: Huang Rui <ray.huang@amd.com>
To: Shuah Khan <skhan@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	<linux-pm@vger.kernel.org>
Cc: Deepak Sharma <deepak.sharma@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Steven Noonan <steven@valvesoftware.com>,
	Nathan Fontenot <nathan.fontenot@amd.com>,
	Jinzhou Su <Jinzhou.Su@amd.com>,
	Xiaojian Du <Xiaojian.Du@amd.com>,
	Perry Yuan <Perry.Yuan@amd.com>, Jassmine Meng <li.meng@amd.com>,
	Borislav Petkov <bp@alien8.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	"Giovanni Gherdovich" <ggherdovich@suse.cz>,
	<linux-kernel@vger.kernel.org>, Huang Rui <ray.huang@amd.com>
Subject: [PATCH RESEND v6 0/9] cpupower: Add AMD P-State Support
Date: Wed, 16 Feb 2022 15:35:49 +0800	[thread overview]
Message-ID: <20220216073558.751071-1-ray.huang@amd.com> (raw)

Hi Shuah,

Since AMD P-State kernel is merged into 5.17-rc1, I would like to continue
revising the AMD P-State support for the CPUPower tool. These series are
rebased on latest bleeding-edge, any comments are warm for me.

See patch series of CPUPower in below git repo:
V1: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=amd-pstate-dev-v1
V2: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=amd-pstate-dev-v2
V3: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=amd-pstate-dev-v3
V4: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=amd-pstate-dev-v4
V5: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=amd-pstate-dev-v5
V6: https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=cpupower-amd-pstate

Changes from V1 -> V2:
- Refine the commit log for cpupower patches.
- Expose a function to get the sysfs value from specific table.
- Move AMD P-State sysfs definitions and functions into AMD helper file.
- Move the boost init function into AMD helper file and explain the
details in the commit log.
- Remove the amd_pstate_get_data in the lib/cpufreq.c to keep the lib as
common operations.
- Move print_speed function into misc helper file.
- Add amd_pstate_show_perf_and_freq() function in AMD helper for
  cpufreq-info print.

Changes from V2 -> V3:
- Revise the cpupower_amd_pstate_enabled() function to use
cpufreq_get_driver helper instead of read sysfs.
- Clean up the AMD P-State max/min frequency APIs, because they are
actually the same with cpufreq info sysfs.

Changes from V3 -> V4:
- Introduce ACPI CPPC library support.
- Clean up the duplicated AMD specific perf/frequency.

Changes from V4 -> V5:
- Fix the table check condition at cpufreq_get_sysfs_value_from_table.

Changes from V5 -> V6:
- Revise the minor commit and subject descriptions.

Thanks,
Ray

Huang Rui (9):
  cpupower: Add AMD P-State capability flag
  cpupower: Add the function to check AMD P-State enabled
  cpupower: Initial AMD P-State capability
  cpupower: Add the function to get the sysfs value from specific table
  cpupower: Introduce ACPI CPPC library
  cpupower: Add AMD P-State sysfs definition and access helper
  cpupower: Enable boost state support for AMD P-State module
  cpupower: Move print_speed function into misc helper
  cpupower: Print AMD P-State information on cpupower

 tools/power/cpupower/Makefile                |  6 +-
 tools/power/cpupower/lib/acpi_cppc.c         | 59 +++++++++++++++
 tools/power/cpupower/lib/acpi_cppc.h         | 21 ++++++
 tools/power/cpupower/lib/cpufreq.c           | 21 ++++--
 tools/power/cpupower/lib/cpufreq.h           | 12 +++
 tools/power/cpupower/utils/cpufreq-info.c    | 68 +++++------------
 tools/power/cpupower/utils/helpers/amd.c     | 77 ++++++++++++++++++++
 tools/power/cpupower/utils/helpers/cpuid.c   | 13 ++++
 tools/power/cpupower/utils/helpers/helpers.h | 22 ++++++
 tools/power/cpupower/utils/helpers/misc.c    | 62 ++++++++++++++++
 10 files changed, 301 insertions(+), 60 deletions(-)
 create mode 100644 tools/power/cpupower/lib/acpi_cppc.c
 create mode 100644 tools/power/cpupower/lib/acpi_cppc.h

-- 
2.25.1