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 2FA20CA5FA7 for ; Tue, 29 Sep 2026 22:17:27 +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=0N+LDgZ/X/JZwiawemRhvg2nuInwxiyqHH9cj8efo5E=; b=VL5aM5u/CaNsH6ZpJXy3yKfSxj prpiAWaWjO969a9LrnAkeCQOqLjLV/5AW+GmI1QRpCNqe/pIEJ9jU1QZ/DUnrg8ymGcBTeaYtDuVE Xe+9c9BHBzdRoZLY55MPn4f4byxq7wRFD3o05dAFiH0ad9BO48dP6Gtg7S0NcoKVzbg9/X3YslZy2 S3DhlT3tfram1yQy7yVdO6AF6VttNKAXTAE+Q5FemucGwM37K0eA7AXUo14+hOGWXNk+aOW7x2ycT irUumhI64tFRYoSEXVpvbYWU0WWQogGMh4XVwEptSfEto46G6cETvLQcsAynKO30rBW12MnB7ffhq p7GyMt+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xBg8W-00000004gJY-3yiV; Tue, 29 Sep 2026 22:17:20 +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 1xBg8A-00000004g9U-0YDq for linux-arm-kernel@lists.infradead.org; Tue, 29 Sep 2026 22:16:59 +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 0048D1516; Tue, 29 Sep 2026 15:16:54 -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 D11A83F85F; Tue, 29 Sep 2026 15:16:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790720217; bh=8PAolXXFA8Ox/Vhqsh/tPUJnvwtmePPmFeXdc9DKbKg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pZ+zIwM2VZDlZLrMs/FSvshCBRIi5fCZReE8feQkG6XeGk85LHEktZw0ss6vg3gpM d2+E4b6aTjqYi6+r/MVUtspPy9TwUw6Fgy3/r7Dd1Gr2oVcxDaSAN/y7a1LF8ZODJi 84UW5mU4OPeqUo/ZBYhW2DugFSV57v88/kTypPno= 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 v20 5/9] firmware: arm_rmm: Activate the RMM Date: Tue, 29 Sep 2026 23:16:19 +0100 Message-ID: <20260929221623.1342076-6-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260929221623.1342076-1-suzuki.poulose@arm.com> References: <20260929221623.1342076-1-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-20260929_151658_224726_2DEEE73D X-CRM114-Status: GOOD ( 13.01 ) 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 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 8d839e9e61424..d982cf158f8da 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