linux-kernel - [PATCH v2 0/5] CPPC/amd-pstate: Fixes to limit actions to online CPUs

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Message-ID: <20251107074145.2340-1-gautham.shenoy@amd.com>
Date: Fri, 7 Nov 2025 13:11:40 +0530
From: "Gautham R. Shenoy" <gautham.shenoy@....com>
To: "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>,
	Mario Limonciello <mario.limonciello@....com>, Yunhui Cui
	<cuiyunhui@...edance.com>, Jeremy Linton <jeremy.linton@....com>, "Viresh
 Kumar" <viresh.kumar@...aro.org>, Ionela Voinescu <ionela.voinescu@....com>
CC: <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>, "Christopher
 Harris" <chris.harris79@...il.com>, <linux-pm@...r.kernel.org>, "Gautham R.
 Shenoy" <gautham.shenoy@....com>
Subject: [PATCH v2 0/5] CPPC/amd-pstate: Fixes to limit actions to online CPUs

Hello,

This is the v2 of the patchset to restrict certain actions to only
online CPUs instead of present CPUs.

The v1 of this patchset can be found here:
https://lore.kernel.org/lkml/20251105143851.4251-1-gautham.shenoy@amd.com/

Changes between v1 --> v2:

 * Picked up the Reviewed-by tags from Mario for the first four
   patches
 
 * Picked up the Tested-by tags from Chris for the first two patches
 
 * Added a fifth patch to fix calling of cppc_set_auto_sel() for only
   online CPUs in the amd-pstate driver code (Mario)


Gautham R. Shenoy (5):
  ACPI: CPPC: Detect preferred core availability on online CPUs
  ACPI: CPPC: Check _CPC validity for only the online CPUs
  ACPI: CPPC: Perform fast check switch only for online CPUs
  ACPI: CPPC: Limit perf ctrs in PCC check only to online CPUs
  cpufreq/amd-pstate: Call cppc_set_auto_sel() only for online CPUs

 arch/x86/kernel/acpi/cppc.c  | 2 +-
 drivers/acpi/cppc_acpi.c     | 6 +++---
 drivers/cpufreq/amd-pstate.c | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

-- 
2.34.1