linux-kernel - [PATCH v5 00/19] amd-pstate cleanups

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Message-ID: <20250226074934.1667721-1-superm1@kernel.org>
Date: Wed, 26 Feb 2025 01:49:15 -0600
From: Mario Limonciello <superm1@...nel.org>
To: "Gautham R . Shenoy" <gautham.shenoy@....com>,
	Perry Yuan <perry.yuan@....com>
Cc: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>,
	linux-kernel@...r.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
	linux-pm@...r.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK),
	Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v5 00/19] amd-pstate cleanups

From: Mario Limonciello <mario.limonciello@....com>

This series overhauls locking and drops many unnecessarily cached
variables.

Debugging messages are also dropped in favor of more ftracing.

This series is based off superm1/linux.git bleeding-edge branch.

Mario Limonciello (19):
  cpufreq/amd-pstate: Invalidate cppc_req_cached during suspend
  cpufreq/amd-pstate: Show a warning when a CPU fails to setup
  cpufreq/amd-pstate: Drop min and max cached frequencies
  cpufreq/amd-pstate: Move perf values into a union
  cpufreq/amd-pstate: Overhaul locking
  cpufreq/amd-pstate: Drop `cppc_cap1_cached`
  cpufreq/amd-pstate-ut: Use _free macro to free put policy
  cpufreq/amd-pstate-ut: Allow lowest nonlinear and lowest to be the
    same
  cpufreq/amd-pstate-ut: Drop SUCCESS and FAIL enums
  cpufreq/amd-pstate-ut: Run on all of the correct CPUs
  cpufreq/amd-pstate-ut: Adjust variable scope
  cpufreq/amd-pstate: Replace all AMD_CPPC_* macros with masks
  cpufreq/amd-pstate: Cache CPPC request in shared mem case too
  cpufreq/amd-pstate: Move all EPP tracing into *_update_perf and
    *_set_epp functions
  cpufreq/amd-pstate: Update cppc_req_cached for shared mem EPP writes
  cpufreq/amd-pstate: Drop debug statements for policy setting
  cpufreq/amd-pstate: Rework CPPC enabling
  cpufreq/amd-pstate: Stop caching EPP
  cpufreq/amd-pstate: Drop actions in amd_pstate_epp_cpu_offline()

 arch/x86/include/asm/msr-index.h   |  20 +-
 arch/x86/kernel/acpi/cppc.c        |   4 +-
 drivers/cpufreq/amd-pstate-trace.h |  13 +-
 drivers/cpufreq/amd-pstate-ut.c    | 211 +++++------
 drivers/cpufreq/amd-pstate.c       | 574 +++++++++++++----------------
 drivers/cpufreq/amd-pstate.h       |  63 ++--
 6 files changed, 395 insertions(+), 490 deletions(-)

-- 
2.43.0