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 C25C2CA5FD9 for ; Fri, 2 Oct 2026 06:16:07 +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=p6+vjx3WBJkAKeAoFs6f3VOtiHhz9P3cNBDje+Z9DiI=; b=ubS2h6CspnME+z91bdR0qwjHkG 1oUGDFr1+xqes34AX6ZqSt0j/G4sx3AGYt1HHg+mTXGdCfGn+aCdTkseVGoI1J3BI6D/gLCvx7apJ rLf78g+ohMGnyFCJ/8+Y0g/Ha0b3EsE7Fw08awb3fSMsZo7AxZFUSB9FP5t+9Wq7AQ0RdrrFEOfo+ EoQ6ZVrbWlji12yfACrCSxpo1ScRwta4bze/9oosZKD7bWJ7zrR6ZrXdIwcjA4mhqo3Z8EOlvrZGU ngWAOc/9XgBKg98IkM/j1IeTUxGCgx2cqv/TCTyejvthsPwFZo7UEW4TF1ffb/2SBBwUnFEnaELbH mSHlEI5A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCWYm-0000000AhM3-2USN; Fri, 02 Oct 2026 06:15:56 +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 1xCWYj-0000000AhJt-3hOS for linux-arm-kernel@lists.infradead.org; Fri, 02 Oct 2026 06:15:55 +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 5933416F8; Thu, 1 Oct 2026 23:15:49 -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 4BEB63F8C6; Thu, 1 Oct 2026 23:15:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790921752; bh=pyqFQeqXPMLfWzm76om5tMIFi1OCqmnWHHZjMX/UxtQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lkw0rSzBJZFtYxfwT2xbXy2fexYN/9xxQwA4G0uwE1s6puTvUY4Q2v5uI6TK8fN4O B7R6C34ISMf/cvl7n9oW8LfTLopeZfcnvxLRJ/PAazLHxcze+sznKvGtlFf7ZOFHHZ dgpScgqKVz3t1lQh7YHzkuKWNgbTdGPyMt3TkkIc= 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 v22 05/10] firmware: arm_rmm: Activate the RMM Date: Fri, 2 Oct 2026 07:15:01 +0100 Message-ID: <20261002061507.1600269-6-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261002061507.1600269-1-suzuki.poulose@arm.com> References: <20261002061507.1600269-1-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_231553_975247_76A5D418 X-CRM114-Status: GOOD ( 12.74 ) 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 a78f180281322..f093cb39fa0d2 100644 --- a/drivers/firmware/arm_rmm/rmi.c +++ b/drivers/firmware/arm_rmm/rmi.c @@ -857,7 +857,18 @@ 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