From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1168D48A2BC for ; Tue, 5 May 2026 15:51:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777996306; cv=none; b=dkhdP1gnXQ+U7Ssu+PiSDpTS0Bg1lGsB9VElC2/vLsMCIRX2osQb/EYiHxiMzG3zlDGQnjuvya10PxDLxPe9bvUAjHYuOq5E5IHpG7TVLKgKojXjCdZgpbRkDOkjWqWHdHbb71dg3R01YmyMOfB3RUgnojM6Ko1StnM0TvML5xQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777996306; c=relaxed/simple; bh=hzQ4xqdCEmfgf1WXvJ/X7FbyyNSp/dEouqw6kfXIfg0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jGa4jW4HCfVJyKUQ9zCKSf6iQ4/lEHzES8233PjXqw6WTv0vybJ/u7xfEC87jqFc6WLmTcoxjseHleuw0X/I7nFyPTyFZAfLXVR6pFlZgfhcDIdRmBhjT5owhbNIDEkUUL2yhYp/2F/fffq+K4R1O9WSqD3hroBrOODeP6IoL1g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=ONLZHV1D; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="ONLZHV1D" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A75E62681; Tue, 5 May 2026 08:51:38 -0700 (PDT) Received: from [10.1.196.46] (e134344.arm.com [10.1.196.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2F2893F905; Tue, 5 May 2026 08:51:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1777996304; bh=hzQ4xqdCEmfgf1WXvJ/X7FbyyNSp/dEouqw6kfXIfg0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ONLZHV1DCsyOW1uzSAmT6dcsHRhY+lCK5PhRNbke+iJ/wlP3LrEFaaQ9qBCqZYCXe G8466JZMuf30uUoX1zYCEq7PFpA3dJc404us9u112G1Yz0Seklt9Rr9WTQbbirZTfx zdsyezlyCk5lKD6zyND1HvOJBWNvgT/Tl53+Su0w= Message-ID: Date: Tue, 5 May 2026 16:51:40 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Thunderbird Daily Subject: Re: [PATCH v5 3/7] fs/resctrl: Disallow the software controller when MBM counters are assignable To: Reinette Chatre , linux-kernel@vger.kernel.org Cc: tony.luck@intel.com, Dave.Martin@arm.com, james.morse@arm.com, babu.moger@amd.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, fenghuay@nvidia.com, tan.shaopeng@fujitsu.com References: <20260428130422.2287302-1-ben.horgan@arm.com> <20260428130422.2287302-4-ben.horgan@arm.com> <50f80205-09a4-4883-aa44-35d41aa780fc@arm.com> <20af6ebf-0960-4918-ad05-a6385edb8fd6@intel.com> Content-Language: en-US From: Ben Horgan In-Reply-To: <20af6ebf-0960-4918-ad05-a6385edb8fd6@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Reinette, On 5/5/26 16:21, Reinette Chatre wrote: > Hi Ben, > > On 5/5/26 3:20 AM, Ben Horgan wrote: >> >> /* >> * The MBA software controller is supported only if MBM is supported and MBA is >> * in linear scale, and the MBM monitor scope is the same as MBA control scope. >> * >> * The software controller cannot be supported when the MBM counters are >> * assignable. There is no guarantee that MBM counters are assigned to the >> * event backing the software controller in all monitoring domains of all >> * monitoring groups. >> */ >> > > Thank you very much. For this patch with above added: > > | Reviewed-by: Reinette Chatre Thanks for all the reviews. I'll send out a v6 today. Ben > > Reinette