From: Perry Yuan <perry.yuan@amd.com>
To: <rafael.j.wysocki@intel.com>, <Mario.Limonciello@amd.com>,
<viresh.kumar@linaro.org>, <Ray.Huang@amd.com>,
<gautham.shenoy@amd.com>, <Borislav.Petkov@amd.com>
Cc: <Alexander.Deucher@amd.com>, <Xinmei.Huang@amd.com>,
<Xiaojian.Du@amd.com>, <Li.Meng@amd.com>,
<linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 0/7] AMD Pstate Driver Core Performance Boost
Date: Fri, 26 Jan 2024 16:08:03 +0800 [thread overview]
Message-ID: <cover.1706255676.git.perry.yuan@amd.com> (raw)
The patchset series add core performance boost feature for AMD pstate
driver including passisve and active mode support.
User can change core frequency boost control with a new sysfs entry:
"/sys/devices/system/cpu/amd_pstate/cpb_boost"
The legancy boost interface has been removed due to the function
conflict with new cpb_boost which can support actrive and passive mode.
1. enable core boost:
$ sudo bash -c "echo 0 > /sys/devices/system/cpu/amd_pstate/cpb_boost"
$ lscpu -ae
CPU NODE SOCKET CORE L1d:L1i:L2:L3 ONLINE MAXMHZ MINMHZ MHZ
0 0 0 0 0:0:0:0 yes 4201.0000 400.0000 2983.578
1 0 0 1 1:1:1:0 yes 4201.0000 400.0000 2983.578
2 0 0 2 2:2:2:0 yes 4201.0000 400.0000 2583.855
3 0 0 3 3:3:3:0 yes 4201.0000 400.0000 2983.578
4 0 0 4 4:4:4:0 yes 4201.0000 400.0000 2983.578
2. disabble core boost:
$ sudo bash -c "echo 1 > /sys/devices/system/cpu/amd_pstate/cpb_boost"
$ lscpu -ae
0 0 0 0 0:0:0:0 yes 5759.0000 400.0000 2983.578
1 0 0 1 1:1:1:0 yes 5759.0000 400.0000 2983.578
2 0 0 2 2:2:2:0 yes 5759.0000 400.0000 2983.578
3 0 0 3 3:3:3:0 yes 5759.0000 400.0000 2983.578
4 0 0 4 4:4:4:0 yes 5759.0000 400.0000 2983.578
The patches have been tested with the AMD 7950X processor and many users
would like to get core boost control enabled for power saving.
Perry Yuan (7):
cpufreq: amd-pstate: remove set_boost callback for passive mode
cpufreq: amd-pstate: initialize new core precision boost state
cpufreq: amd-pstate: implement cpb_boost sysfs entry for boost control
cpufreq: amd-pstate: fix max_perf calculation for amd_get_max_freq()
cpufreq: amd-pstate: fix the MSR highest perf will be reset issue
while cpb boost off
cpufreq:amd-pstate: add suspend and resume callback for passive mode
Documentation: cpufreq: amd-pstate: introduce the new cpu boost
control method
Documentation/admin-guide/pm/amd-pstate.rst | 11 +
drivers/cpufreq/amd-pstate.c | 222 ++++++++++++++++----
include/linux/amd-pstate.h | 1 -
3 files changed, 194 insertions(+), 40 deletions(-)
--
2.34.1
next reply other threads:[~2024-01-26 8:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-26 8:08 Perry Yuan [this message]
2024-01-26 8:08 ` [PATCH 1/7] cpufreq: amd-pstate: remove set_boost callback for passive mode Perry Yuan
2024-01-26 15:45 ` Mario Limonciello
2024-01-29 4:46 ` Yuan, Perry
2024-01-26 8:08 ` [PATCH 2/7] cpufreq: amd-pstate: initialize new core precision boost state Perry Yuan
2024-01-26 16:01 ` Mario Limonciello
2024-01-27 19:01 ` kernel test robot
2024-02-11 18:19 ` kernel test robot
2024-02-14 6:37 ` Gautham R. Shenoy
2024-01-26 8:08 ` [PATCH 3/7] cpufreq: amd-pstate: implement cpb_boost sysfs entry for boost control Perry Yuan
2024-01-26 15:56 ` Mario Limonciello
2024-01-29 5:22 ` Yuan, Perry
2024-01-26 8:08 ` [PATCH 4/7] cpufreq: amd-pstate: fix max_perf calculation for amd_get_max_freq() Perry Yuan
2024-01-26 15:54 ` Mario Limonciello
2024-01-29 5:16 ` Yuan, Perry
2024-01-26 8:08 ` [PATCH 5/7] cpufreq: amd-pstate: fix the MSR highest perf will be reset issue while cpb boost off Perry Yuan
2024-01-26 8:08 ` [PATCH 6/7] cpufreq:amd-pstate: add suspend and resume callback for passive mode Perry Yuan
2024-01-26 15:52 ` Mario Limonciello
2024-01-26 8:08 ` [PATCH 7/7] Documentation: cpufreq: amd-pstate: introduce the new cpu boost control method Perry Yuan
2024-01-26 15:47 ` Mario Limonciello
2024-01-29 5:07 ` Yuan, Perry
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