From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9A3BF3176EF; Tue, 29 Sep 2026 22:16:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790720222; cv=none; b=hVucTr7N6j9ZoNaYU9ndgtW4U+j7yyozitVsB9ZsEmgxJxGIWNIW9MuGsrBoWhXUQzfE7dJpdjmtEE0mTmMEtpkYvZK1IKX5BgXi4wmbMm5eUooZXyi1ox4QcGKOgDxjXAUW9S4Eg/RliNzImT10bIudZvEenT35OxEfuUZ6qF4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790720222; c=relaxed/simple; bh=8PAolXXFA8Ox/Vhqsh/tPUJnvwtmePPmFeXdc9DKbKg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dv4Rt0P0WZeBuaGcTTbYkwz2ee7h4XSb9IDhPFzx0wRku7Frx3G2AIiw3qfjv9saZuaDL3L20fJumdRZn0YndrOdWVzsGWcZkU9IKb8Bm5Jb/VtFF3fdSZhrwgg0t8RBOlAFfyblR4zkHwQr8a3B/MSiq6ZxGwOX90ZKVYVsX+c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=pZ+zIwM2; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="pZ+zIwM2" 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> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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