From patchwork Thu Sep 5 16:30:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mario Limonciello X-Patchwork-Id: 13792701 X-Patchwork-Delegate: mario.limonciello@amd.com Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C16811AE056; Thu, 5 Sep 2024 16:30:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725553829; cv=none; b=PEYwYYJJl+jqj+abF3fpHZw92w8KGikkXP4H9TYt4yrdTo46L/Q2MGLk3EwZ9eDInfomWy/UNM/OSfZXOgsCXmPbySBiIIHG2hec8bc5Q+978vNSDUwdiWWxbpXtuIjIbFK+vCZ5NYl0FvACwNlCwRwZFkYMWU/kJhiNajnRiC8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725553829; c=relaxed/simple; bh=Hvu/JDym95sl9P2OaGdfnlcHvW9GhdS42LXTs42qNMk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ulutI5FSVs+uIQ7PtUIB6y7A6KsmASrO88aA6RKZyKfchWrRTJ6skB2nKs7323taALWwjpe7jzLv1Rk2XHnjaScfuOB44LMYHPiSvNUWIds9in7M40FHaTIElIb/4ovuDKwa8CZZRJt42ue+ud74REW+wmrQ2oiEzC73ivk75ps= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UEeRcFP4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UEeRcFP4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E2AFC4CEC3; Thu, 5 Sep 2024 16:30:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725553829; bh=Hvu/JDym95sl9P2OaGdfnlcHvW9GhdS42LXTs42qNMk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UEeRcFP4hQ/4B4S3/fx4scu5EFBZCQs5mdXWnQl6OZt/ZUKSlNEHTj5Dnw1uIHQlx QZKUtYn86Rj/bbcGnCJEYF6Qu9yPrsUUgOmVOXhhxrRU0RygabQhrtCIAwDuIyJOTH 5Dz1WiLw/LbS2PT/3Zl8IJzG8yw5BxJj+0hsWG0mXjQDdNtD7RX08cCV94WkhJ5gvu NcVNYL2VFj4dqhiUgZpOUdYzNPLvcjcP43vxNWNQ3IsAZfcVV4HoRzgTSpi5mIVRVH IuxKEEfIq3Gv4ll5F57H7fkjhpxX6zGjNEzhagZOZe26fTZZd5bjZXRZh9vux4ir81 6CM1FsaZAR42A== From: Mario Limonciello To: "Gautham R . Shenoy" , Perry Yuan Cc: Borislav Petkov , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), "Rafael J . Wysocki" , linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)), linux-acpi@vger.kernel.org (open list:ACPI), linux-pm@vger.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK), Mario Limonciello Subject: [PATCH v3 10/11] cpufreq: amd-pstate: Add documentation for `amd_pstate_hw_prefcore` Date: Thu, 5 Sep 2024 11:30:06 -0500 Message-ID: <20240905163007.1350840-11-superm1@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240905163007.1350840-1-superm1@kernel.org> References: <20240905163007.1350840-1-superm1@kernel.org> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Mario Limonciello Explain that the sysfs file represents both preferred core being enabled by the user and supported by the hardware. Reviewed-by: Gautham R. Shenoy Signed-off-by: Mario Limonciello --- v2->v3: * Add tag --- Documentation/admin-guide/pm/amd-pstate.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst index e13915c540648..d5c050ea390dc 100644 --- a/Documentation/admin-guide/pm/amd-pstate.rst +++ b/Documentation/admin-guide/pm/amd-pstate.rst @@ -263,6 +263,11 @@ lowest non-linear performance in `AMD CPPC Performance Capability `_.) This attribute is read-only. +``amd_pstate_hw_prefcore`` + +Whether the platform supports the preferred core feature and it has been +enabled. This attribute is read-only. + ``energy_performance_available_preferences`` A list of all the supported EPP preferences that could be used for