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 89B71CA5FB3 for ; Thu, 1 Oct 2026 08:46:55 +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: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UjJ8jgPkWZ6cb9E/tV/g/wV4USo6RJ1VuO9ET5oHFIw=; b=aTP4VH4G2NlqjCbWD17xJcu6Fb Ql59f4AwYUqRf68Ywdadah5oHKP9PrFHj8M6f6JokFxcWs2XvAgBdn0CwrKpjFB14XSLcY224/YO3 IEVYcz6muHiKR3hw9u0wRvFmZajpf0MNKtNpXhRH+vY0dwNJR3B82SNTrFRUDCArtGF0MF99oGxGE Qhl8ISYHspGyC44WAj/Uu/xBPjkW9ucq2rmBKJ3Vci5SSrK8xwkHNkuyyQaNrX+YTr8K0CzYx2vX7 mmSNvbA1d8xHtACgpRsEKGIDRxaLNZDNz2g4y+ztQSwTJBd8IJLSj/50xXUseUd+k0JO74gWJ58iB 4MdrQ+DQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCCRE-00000008FZN-3ZeG; Thu, 01 Oct 2026 08:46:48 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCCRE-00000008FY7-1XWO for linux-arm-kernel@bombadil.infradead.org; Thu, 01 Oct 2026 08:46:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=UjJ8jgPkWZ6cb9E/tV/g/wV4USo6RJ1VuO9ET5oHFIw=; b=hYWXATL2EPPr7T30ZUsMSb/LrM aAY0VUE9FtSpuAEzd/uPvfaK+BjNwnYlzmjwSe9CktShmdGxW1/dKT3ZhwZ43BFXqxrw6c17KRxTA ++V/MJpFRVTkwVVvkmLPeQNs5a7UN1m7JNw5EDgnunIGaKRljLSeN2vNnus5OeiYax0fIHF1SoZIh oRV970Xc31gsCj3hUd3wEEcB63h/Vz/Gkt0X519rx1eOacO4DfSDoZIRB3Pb51avHbG4qQDSKs4g3 YcfSx+8U9TvEy4TrcWBVPyaUMl7xhC9F7AIh7Qx28KTFABRXMbrS0wdoV3VIkYrCYJg5pl+ur0SPx ug8K/www==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.99.2 #2 (Red Hat Linux)) id 1xCCRA-00000004ksG-2aZm for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2026 08:46:47 +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 566AD143D; Thu, 1 Oct 2026 01:46:39 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.2.197.99]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id BD3593F85F; Thu, 1 Oct 2026 01:46:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790844402; bh=0lgDmGeLJq7RbJezBV2iLjvQCqQrC0FPw1FUVlCTRok=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b0bH39veFKshNEC9rSaFn0niKRGXHiBdMNQtJrVPqnkmHxpm6UB9ZoanaEcvaDgy4 +hTE0+vaTtwSWTElHFUJbOCNfOsVIQ3TKNaWj+vZLyjnzXt6kuceTkZ2k6IjHcdQAs Fk/IpjZdGl3NiGMmmcnvXeeXEeLMOFk2gxrdJ5Ag= From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: maz@kernel.org, will@kernel.org, catalin.marinas@arm.com, 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, Suzuki K Poulose Subject: [PATCH v21 5/9] firmware: arm_rmm: Activate the RMM Date: Thu, 1 Oct 2026 09:45:51 +0100 Message-ID: <20261001084555.1456543-6-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261001084555.1456543-1-suzuki.poulose@arm.com> References: <20261001084555.1456543-1-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261001_094645_313167_B7C72773 X-CRM114-Status: GOOD ( 14.31 ) 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 From: Steven Price Activate the RMM after the basic configuration. This is a memory transferring stateful operation. Reviewed-by: Gavin Shan Reviewed-by: Jonathan Cameron Reviewed-by: Catalin Marinas Tested-by: Gavin Shan Signed-off-by: Steven Price Co-developed-by: Suzuki K Poulose Signed-off-by: Suzuki K Poulose --- Changes since v17: * Inline RMM_ACTIVATE command and remove the definitions from arm-rmi-cmds.h * Use scope-based cleanup to free sro object Changes since v16: * Split into a new patch --- drivers/firmware/arm_rmm/rmi.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_rmm/rmi.c b/drivers/firmware/arm_rmm/rmi.c index 7d4e04a5d7c0a..a09056a5d269f 100644 --- a/drivers/firmware/arm_rmm/rmi.c +++ b/drivers/firmware/arm_rmm/rmi.c @@ -850,7 +850,18 @@ static int __init arm64_init_rmi(void) if (ret) return ret; - return 0; + /* Activate the RMM */ + struct rmi_sro_state *sro __free(kfree) = kmalloc_obj(*sro); + if (!sro) + return -ENOMEM; + + ret = rmi_sro_memxfer_cmd(sro, GFP_KERNEL, SMC_RMI_RMM_ACTIVATE); + if (ret) { + pr_err("RMM activate failed (%d)\n", ret); + ret = ret < 0 ? ret : -ENXIO; + } + + return ret; } /* -- 2.43.0