From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A1F97D4661A for ; Thu, 15 Jan 2026 19:14:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4LomUmIenOCeNWrZBziXnsmvr65y5f06EFVAsM4df/E=; b=RWddwbWQNja1tQ8uvIWPLrue2b M8LQR+xUarh3svbImNFdt3iVixlG7aFThsd2u2KSw8HtWqMeifpHKyXg6aaxtNylTErIKPM0ZX1t1 KTgKq4jyiHOiOf8vUp85PG1/LYtjV+vdzF9D6BBttv2JhdAd2g2mGFpwPz25amtPlUEGuDig1CI+o HgL39yRkGii4qEs3pPn2e+V8gRRGsF+FyyuRzKSdrX12UANeNjC+M9Rld/p+pjcVMrJXsoXqxyMEV 1VS+aTBZuGxaO61C/xqpK8m1XcR1lzsnF18NqeuHN2fY1IXFsWchCw3AsPrM/OKNCW8xqvXoNrdyC bmgNCQvg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vgSn7-0000000D1kR-2BEh; Thu, 15 Jan 2026 19:13:57 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vgSn5-0000000D1k4-29G4 for linux-arm-kernel@lists.infradead.org; Thu, 15 Jan 2026 19:13:56 +0000 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 12A451515; Thu, 15 Jan 2026 11:13:47 -0800 (PST) Received: from arm.com (arrakis.cambridge.arm.com [10.1.197.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 690DC3F59E; Thu, 15 Jan 2026 11:13:48 -0800 (PST) Date: Thu, 15 Jan 2026 19:13:45 +0000 From: Catalin Marinas To: Ben Horgan Cc: amitsinght@marvell.com, baisheng.gao@unisoc.com, baolin.wang@linux.alibaba.com, carl@os.amperecomputing.com, dave.martin@arm.com, david@kernel.org, dfustini@baylibre.com, fenghuay@nvidia.com, gshan@redhat.com, james.morse@arm.com, jonathan.cameron@huawei.com, kobak@nvidia.com, lcherian@marvell.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, peternewman@google.com, punit.agrawal@oss.qualcomm.com, quic_jiles@quicinc.com, reinette.chatre@intel.com, rohit.mathew@arm.com, scott@os.amperecomputing.com, sdonthineni@nvidia.com, tan.shaopeng@fujitsu.com, xhao@linux.alibaba.com, will@kernel.org, corbet@lwn.net, maz@kernel.org, oupton@kernel.org, joey.gouly@arm.com, suzuki.poulose@arm.com, kvmarm@lists.linux.dev Subject: Re: [PATCH v3 11/47] arm64: mpam: Add helpers to change a task or cpu's MPAM PARTID/PMG values Message-ID: References: <20260112165914.4086692-1-ben.horgan@arm.com> <20260112165914.4086692-12-ben.horgan@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260112165914.4086692-12-ben.horgan@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260115_111355_592582_C83E0667 X-CRM114-Status: UNSURE ( 8.11 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jan 12, 2026 at 04:58:38PM +0000, Ben Horgan wrote: > +static inline void mpam_set_task_partid_pmg(struct task_struct *tsk, > + u16 partid_d, u16 partid_i, > + u8 pmg_d, u8 pmg_i) > +{ > +#ifdef CONFIG_ARM64_MPAM > + u64 regval = __mpam_regval(partid_d, partid_i, pmg_d, pmg_i); > + > + WRITE_ONCE(task_thread_info(tsk)->mpam_partid_pmg, regval); > +#endif > +} Isn't this function, together with mpam_thread_switch(), in an enclosing #ifdef already? > + > static inline void mpam_thread_switch(struct task_struct *tsk) > { > u64 oldregval; > -- > 2.43.0 > -- Catalin