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 60DDFC88E4D for ; Sat, 12 Sep 2026 08:37:15 +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=qQV5Vfy4A2GyXUIjNr6Obdf19gVUHdsQEgheAovA9Zo=; b=ool+D0XI3wyAHyOq0tEopZ5Asr ka8Iza0LLsUJ57f9n8fodIPAPgcYpMX7oimuT8vLAuZL6EDp4Ym/0+jJEFOEaom7Rq4QvyOv1s8OJ cjxbolA8rGBKKWSMBYnQYbr8o/3H/CyBPjw4xrx/5glmPh8H431eEFpduYDq6RwpDr4qmFtLTAFWk iWfkWhQjbemxwls6pNOJDgjrJKNWM2i1EAQ9mrBI3XUEt5FMi5W7eKQEAGN2SxpgzN0CfkIZAbfkG rPs3Lha6HTjN3a182xd8eEXUYUC8igoepeUzUTwskjFj76VfW5LxAOxIHueGdOTJCJRRRi879doO7 qo29NwSA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x5JER-00000000hff-3341; Sat, 12 Sep 2026 08:37:07 +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 1x5JEL-00000000hal-0Nkv for linux-arm-kernel@lists.infradead.org; Sat, 12 Sep 2026 08:37:02 +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 87C591713; Sat, 12 Sep 2026 01:36:56 -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 8FFE03F7B4; Sat, 12 Sep 2026 01:36:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789202220; bh=GjkCl1rRW7deuJHjwHozpX3OphQOimiRmcFSba0i5JA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jIKI18y4TRh5WEcxO3W2cqoEVHu0yXk9ZcbJ4vvk1jxmzn6MqUTsfuPGLy4UwQgEZ psCeT8GFGA8Jxa4zw5RvRdaSQD/5CrF7z4KKWb1W0vNweKMfjkKlPpQifL0FmDH1Tl yFHjlKSwU2NBA5n/++dVeSiEFf81GEW48KA/6CYs= 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, Suzuki K Poulose Subject: [PATCH v18 5/7] firmware: arm_rmm: Activate the RMM Date: Sat, 12 Sep 2026 09:36:08 +0100 Message-ID: <20260912083611.2513845-6-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260912083611.2513845-1-suzuki.poulose@arm.com> References: <20260912083611.2513845-1-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-20260912_013701_179565_DB04EF96 X-CRM114-Status: GOOD ( 13.10 ) 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. Signed-off-by: Steven Price 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 | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_rmm/rmi.c b/drivers/firmware/arm_rmm/rmi.c index 4f9898ece7547..ecc89e91d264d 100644 --- a/drivers/firmware/arm_rmm/rmi.c +++ b/drivers/firmware/arm_rmm/rmi.c @@ -762,6 +762,7 @@ static int rmi_configure(void) static int __init arm64_init_rmi(void) { int ret; + struct rmi_sro_state *sro __free(kfree) = NULL; /* Continue without realm support if we can't agree on a version */ ret = rmi_check_version(); @@ -776,7 +777,18 @@ static int __init arm64_init_rmi(void) if (ret) return ret; - return 0; + /* Activate the RMM */ + sro = 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\n"); + ret = ret < 0 ? ret : -ENXIO; + } + + return ret; } /* -- 2.43.0