From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 6B58F25EFBE; Sat, 28 Feb 2026 07:02:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772262125; cv=none; b=miBKG+e3xDGEraJK9/DbFrelXWmrCkBLCHA0usib2gHk6D/Zoo0W+PQ6FsfkK9FmVNakdKuRiKYV2WpzHnOGSCTlwuazbQQ11aUSHo89Cp8RbR0kiI818bwd6PRDl2+XxwGWg7IxcWYQuChKVIN5+76FeNvNXjf34PNbauk6fS0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772262125; c=relaxed/simple; bh=uUAUJ/SEYhixx1AJbJBupM8reL9/nEbLspuifeMY9WM=; h=Message-ID:Subject:From:To:Date:In-Reply-To:References: Content-Type:MIME-Version; b=Gn7rXW8+SxP2HBXx6ixCvs+zNt56VXg/HwXremtTRU/qTS6pZV0L3tp6LkOnema9YeSavd1Kc2m+i7buTwx99JfD6NuBVevwb6Huv9FGsCX9wnXd+TmojxunXaPMBTfTg5ZvBv9tStMPb0L83NBDPHBn83o7ZuJE16DGGMxOIls= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=jVD5wY52; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="jVD5wY52" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772262125; x=1803798125; h=message-id:subject:from:to:date:in-reply-to:references: content-transfer-encoding:mime-version; bh=uUAUJ/SEYhixx1AJbJBupM8reL9/nEbLspuifeMY9WM=; b=jVD5wY52c+6wEcgKeIFe6nYsiVmjXs+PMwk9v1NsEn0zeDaMFLbyJiJO J8zxcIT4it8qTosEzFtqATDmTSa2wqGkKON1OUdJpj6od0/yOWF0RChNx CGf/R7bnk3GR2nhP7ZqD0CMlR6hxS+eiqeaANcjhX1mUBJS5Wuk8A06yG ERET/oIupDJ1TTxzEUZtYn2mItiLqyQd/s5ARvtLS80H9PECH7GhGLq1P 1H731dm14SshQvMf32uC98VE5m7DN/d8bGASgJ/UoiG69WZGpjMxjS91m KePMW+M1/z/40y58hJK/qGpGjXUaO7/cMPxrjQoPUu4FWOUg/8rTVRjZ5 w==; X-CSE-ConnectionGUID: qcfUWrrzReSfGqVkp6ORiQ== X-CSE-MsgGUID: jN7hgNrdRTqP32dcHZBdAw== X-IronPort-AV: E=McAfee;i="6800,10657,11714"; a="73408296" X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="73408296" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 23:02:04 -0800 X-CSE-ConnectionGUID: rFqkrEcGQ3SsBBfqOuVaUQ== X-CSE-MsgGUID: iOOOKWgZT4umD/7Hyy7yVw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="222091311" Received: from spandruv-mobl5.amr.corp.intel.com (HELO [10.125.111.246]) ([10.125.111.246]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 23:02:04 -0800 Message-ID: <14c6d1ec06bde185c928e433c3d1fa2341be86b9.camel@linux.intel.com> Subject: Re: =?UTF-8?Q?=E7=AD=94=E5=A4=8D=3A?= [PATCH][RFC] platform/x86: intel_speed_select: Use static_cpu_has for HWP check From: srinivas pandruvada To: "Li,Rongqing(ACG CCN)" , Hans de Goede , Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , "platform-driver-x86@vger.kernel.org" , "linux-kernel@vger.kernel.org" Date: Fri, 27 Feb 2026 23:02:03 -0800 In-Reply-To: References: <20260228035108.2543-1-lirongqing@baidu.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Sat, 2026-02-28 at 06:57 +0000, Li,Rongqing(ACG CCN) wrote: > > =C2=A0static bool disable_dynamic_sst_features(void) > > =C2=A0{ > > - u64 value; > > - > > - rdmsrq(MSR_PM_ENABLE, value); > > - return !(value & 0x1); > > + return !static_cpu_has(X86_FEATURE_HWP); > > =C2=A0} > >=20 > > =C2=A0#define _read_cp_info(name_str, name, offset, start, width, > > mult_factor)\ > > -- >=20 >=20 > static_cpu_has(X86_FEATURE_HWP) is different from value of > MSR_PM_ENABLE, when intel_pstate=3Dno_hwp is configured in kernel > cmdline >=20 > Sorry for the noise, please drop this patch; >=20 No worries. -Srinivas > [Li,Rongqing]=20 >=20 >=20 > > 2.9.4