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Update the amd-pstate driver to set the initial scaling frequency policy

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lower bound to be lowest non-linear frequency. This will have a slight
 power consumption impact but should lead to increased efficiency.
 
 Also amd-pstate is enabled by default on servers starting with newer
 AMD Epyc processors.
 
 Align more codepaths between shared memory and MSR designs.
 
 Add various code cleanups to rename functions and remove redundant calls.
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Merge tag 'amd-pstate-v6.13-2024-10-29' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux

Merge amd-pstate driver updates for 6.13 from Mario Limonciello:

"Update the amd-pstate driver to set the initial scaling frequency policy
 lower bound to be lowest non-linear frequency. This will have a slight
 power consumption impact but should lead to increased efficiency.

 Also amd-pstate is enabled by default on servers starting with newer
 AMD Epyc processors.

 Align more codepaths between shared memory and MSR designs.

 Add various code cleanups to rename functions and remove redundant calls."

* tag 'amd-pstate-v6.13-2024-10-29' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux:
  cpufreq/amd-pstate: Move registration after static function call update
  cpufreq/amd-pstate: Push adjust_perf vfunc init into cpu_init
  cpufreq/amd-pstate: Align offline flow of shared memory and MSR based systems
  cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function
  cpufreq/amd-pstate: Do not attempt to clear MSR_AMD_CPPC_ENABLE
  cpufreq/amd-pstate: Rename functions that enable CPPC
  cpufreq/amd-pstate-ut: Add fix for min freq unit test
  amd-pstate: Switch to amd-pstate by default on some Server platforms
  amd-pstate: Set min_perf to nominal_perf for active mode performance gov
  cpufreq/amd-pstate: Remove the redundant amd_pstate_set_driver() call
  cpufreq/amd-pstate: Remove the switch case in amd_pstate_init()
  cpufreq/amd-pstate: Call amd_pstate_set_driver() in amd_pstate_register_driver()
  cpufreq/amd-pstate: Call amd_pstate_register() in amd_pstate_init()
  cpufreq/amd-pstate: Set the initial min_freq to lowest_nonlinear_freq
  cpufreq/amd-pstate: Remove the redundant verify() function
  cpufreq/amd-pstate: Drop needless EPP initialization
  cpufreq/amd-pstate: Use amd_pstate_update_min_max_limit() for EPP limits
  cpufreq/amd-pstate: Don't update CPPC request in amd_pstate_cpu_boost_update()
  cpufreq/amd-pstate: Fix non kerneldoc comment
  cpufreq/amd-pstate: Rename MSR and shared memory specific functions
This commit is contained in:
Rafael J. Wysocki 2024-10-29 15:46:33 +01:00
commit d90adb5a70
2 changed files with 97 additions and 138 deletions
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