From: Mario Limonciello <mario.limonciello@amd.com>
To: "Rafael J . Wysocki" <rafael@kernel.org>
Cc: <linux-acpi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-pm@vger.kernel.org>,
K Prateek Nayak <kprateek.nayak@amd.com>, <x86@kernel.org>,
Vishal Badole <Vishal.Badole@amd.com>,
Mario Limonciello <mario.limonciello@amd.com>
Subject: [PATCH v2 0/3] Zen6 client CPPC
Date: Tue, 1 Sep 2026 16:59:09 -0500 [thread overview]
Message-ID: <20260901215913.3042182-1-mario.limonciello@amd.com> (raw)
Zen6 client platforms use CPPC differently than previous platforms
and knowing maximum frequency for a core type is needed for capacity
calculations.
Newer versions of the ACPI will introduce a proper interface
for getting this information, but for now hardcode values so that
these systems perform as intended and to unblock future scheduler
work while we continue to wait.
v2:
* Rebase on v7.3-rc1 + [1]
* Add tags
* Use CPU features instead of FMR
* Use Prateek's suggested fallback path
Link: https://lore.kernel.org/linux-acpi/20260830115644.2056983-1-christian.loehle@arm.com/ [1]
Mario Limonciello (3):
ACPI: CPPC: Refactor boost ratio handling
cpufreq/acpi-cpufreq: Use amd_get_boost_ratio()
cpufreq/amd-pstate: Get Highest Freq for a CPU
arch/x86/kernel/acpi/cppc.c | 166 ++++++++++++++++++++++-----------
drivers/cpufreq/acpi-cpufreq.c | 17 ++--
drivers/cpufreq/amd-pstate.c | 20 ++--
include/acpi/cppc_acpi.h | 14 ++-
4 files changed, 143 insertions(+), 74 deletions(-)
--
2.43.0
next reply other threads:[~2026-09-01 21:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 21:59 Mario Limonciello [this message]
2026-09-01 21:59 ` [PATCH v2 1/3] ACPI: CPPC: Refactor boost ratio handling Mario Limonciello
2026-09-01 21:59 ` [PATCH v2 2/3] cpufreq/acpi-cpufreq: Use amd_get_boost_ratio() Mario Limonciello
2026-09-01 21:59 ` [PATCH v2 3/3] cpufreq/amd-pstate: Get Highest Freq for a CPU Mario Limonciello
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