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 F0926CA5FDD for ; Fri, 2 Oct 2026 15:28:23 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Fb7Br6Tsxum2GGbS/TXkTo/tcMwy9nDRiJAq1fdhN54=; b=aXstEvHtHmmJfcoxDp7GnSDEFS aU/sL+XdA05IG1BnlhrBRvLQp17uBBvOm4QIcvAn86HdrcvJzw6fb4mUUB5qfVROY8cog3lkKvgYA lopNUT3kk+SNGKWoJahDxvYBx8Nt1CkKBoZVEr4a14sRywdKbHd1dzEdS5IcECNYa07QMk7PpX+qq fPV4uvuTU7RUo6QTn59ti2tE5zqQe6DKlO7dxpYWxP8wL9s/hMJna6gLDjvmIMXhuamDfpaQsdPwc lJceOTqRqv1KdX+cfAkMHLqw7xrkL1M9j/Q3oKyF4shKEVFOuRTCNJwCgd+HjAuomZ7DOLfdO6YMB 2NFb1c3g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCfBJ-0000000BuxM-2jne; Fri, 02 Oct 2026 15:28:17 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCfBF-0000000Buvg-0qnK for linux-arm-kernel@lists.infradead.org; Fri, 02 Oct 2026 15:28:15 +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 F3E4D1476; Fri, 2 Oct 2026 08:28:08 -0700 (PDT) Received: from [10.57.8.170] (unknown [10.57.8.170]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DD2013F85F; Fri, 2 Oct 2026 08:28:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790954892; bh=jSesLRiSeGml5Tnrjg/pe9P+zipvIwJDessg3nPTnYU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=hAwzBJxktNKlnMFxSzOnuLVq2YuNzJ/DaM11nCmTz07uIzhDiXOJ79lEd1F5eCV38 mWM79MLDCyjXlTpcX6J6HMTkq9NqYKq1rwVSZVpy6cVbj4X41jX9RDAL1L2gn2q1Tf Lc6ajo6DhJ6lHPA+rh+V5D68sRn9lbM+X8jl8+GE= Message-ID: <1910861a-1188-4ba9-ace9-be82304c95a5@arm.com> Date: Fri, 2 Oct 2026 16:28:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v22 09/10] firmware: arm_rmm: Add wrappers for Realm related RMI commands Content-Language: en-GB To: Catalin Marinas Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, maz@kernel.org, will@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, steven.price@arm.com, aneesh.kumar@kernel.org, oupton@kernel.org, gshan@redhat.com, joey.gouly@arm.com, tabba@google.com, yuzenghui@huawei.com, linux-coco@lists.linux.dev, gankulkarni@os.amperecomputing.com, sdonthineni@nvidia.com, alpergun@google.com, fj0570is@fujitsu.com, WeiLin.Chang@arm.com, lpieralisi@kernel.org, enju.kohei@fujitsu.com, sudeep.holla@arm.com, jonathan.cameron@oss.qualcomm.com References: <20261002061507.1600269-1-suzuki.poulose@arm.com> <20261002061507.1600269-10-suzuki.poulose@arm.com> From: Suzuki K Poulose In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261002_082813_296259_AD98763C X-CRM114-Status: GOOD ( 11.36 ) 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 02/10/2026 12:05, Catalin Marinas wrote: > On Fri, Oct 02, 2026 at 07:15:05AM +0100, Suzuki K Poulose wrote: >> +/* >> + * rmi_smccc_invoke_once: Invoke the RMI call and return the results. Do not >> + * retry the command. Let the caller deal with RMI_BUSY or RMI_BLOCKED. >> + * >> + * @regs: Input parameters filled in. Updated with the ouptput results >> + * after the call. >> + */ >> +static __always_inline void rmi_smccc_invoke_once(struct arm_smccc_1_2_regs *regs) >> +{ >> + struct arm_smccc_1_2_regs args = *regs; >> + >> + arm_smccc_1_2_smc(&args, regs); >> +} > > Nit: I mentioned on v21 - is the copy to args still needed? Can we not > do just: Sorry, yes, you are right. This is a single call and we are fine to overwrite the results. > > arm_smccc_1_2_smc(regs, regs); > > (no need to respin, I can fix it locally) Yes please Suzuki >