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 4FB8A4C33C8; Thu, 1 Oct 2026 08:46:43 +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=1790844404; cv=none; b=GjU6hW7RkhTIvBbMgyXzHTF2kwbgSC8qNTq9yX2gTUl6CwqLwpyb8Gqz1a3kbw6z2r4XobIhzE7XPWkE1z9+H7PQsgcuE3Oj+XEPlPRGvRb+bSM7W+0eL0VSTeCbhByXVZtAQLhX6ntITnt7xPbrUqHHYuTjtxQ+WIs80Wt5mJg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790844404; c=relaxed/simple; bh=0lgDmGeLJq7RbJezBV2iLjvQCqQrC0FPw1FUVlCTRok=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PlvHhsD94roQuOiXi/AEIj2FBS2Gnu9iR8weWfijePuSVkwOzb0xeDY9l/t0UEhuMF/ckiSPvX+TIX2HRXvMP77eM/YSpbu00CwdC+I1Tr2cS1oG2LBbmRoXivqG/YKIQX58s7V699m5z/Ew3f9xfKuR3TYTB/yEfXl50u9kSkY= 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=b0bH39ve; 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="b0bH39ve" 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> 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 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