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 3D23DFED2E4 for ; Thu, 12 Mar 2026 08:02:45 +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=OFt0wV0dGz06pYWhrhL9XwF8NljX3erbOsb9IGlzi/s=; b=G9kbgZYFyV/2ttHBPFVOR7+Oui 6ORnkhF45xUyVlKyY0oXcAPxWpCNAHEa0vJ9ZKbYq7Nd9QZXs1c7Bjp3G0P9R9d8yhyi71TahmFHr 54zRkWQVWziG/axjvKKHevPZ7cjxbz53FVJCswcQxKZii3+x+41cMKOmtFZ7tGSUMn/AAODiSrkh9 Vux502pvdZOZD2/vbsZZgZuGLJxuJp/wCWr2H5yHTwPOi/n5gZJG0dmiRtMdk3QaPDPvfHwilTQdL fOQUd76OnZaVeTZoJEzUNlKAPnM2vtFD+icsN/7MVlUKYGegyw8Ju/sbfbEn0vjophe06EQ2H7crh rjWDFzyw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0b0B-0000000DZSb-1Nmm; Thu, 12 Mar 2026 08:02:39 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0b07-0000000DZQR-2Gfw for linux-arm-kernel@lists.infradead.org; Thu, 12 Mar 2026 08:02:37 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 31CE544332; Thu, 12 Mar 2026 08:02:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A27E6C2BCB0; Thu, 12 Mar 2026 08:02:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773302555; bh=za/IJI/M4boNse0krvOPCedzdOn+suKa0F46ZZO+gZg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RI+nA7ukMybNnkm3lH6oVEgqiYcpyFBnzTFL2NOQgUdbOm74tb7wEhZUC/D/XXy4r +4cOwBl14c/GXbc4AtgSZpsLAhoEMvkVKLvlFz9ROvUyWhAaSnUhdhHQXcYjq7M78W Av0vAr7sM9UvyMb9lFS79sYWoDMUd6NLqRoa+YyjVuf+jMmVGR1ojevgW5QXjSRNrG CbbiQOggMSfgBdEaMxXQq6/uPscz4Ad8mxTS/+5+dYVemLKkDPhXZdq7WIcYXPYw4D dblKI6MXASVTOqJvhlmyOwyP2MQkwDstJZm4wvBSzxNHs3Oqf7H76ozgOHcPIrafMr u0jbUW/HX0chw== From: "Aneesh Kumar K.V (Arm)" To: linux-coco@lists.linux.dev, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, "Aneesh Kumar K.V (Arm)" , Marc Zyngier , Catalin Marinas , Will Deacon , Jonathan Cameron , Jason Gunthorpe , Dan Williams , Alexey Kardashevskiy , Samuel Ortiz , Xu Yilun , Suzuki K Poulose , Steven Price , Jonathan Cameron Subject: [RFC PATCH v3 06/10] coco: host: arm64: Instantiate RMM pdev during device connect Date: Thu, 12 Mar 2026 13:31:25 +0530 Message-ID: <20260312080129.3483585-7-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260312080129.3483585-1-aneesh.kumar@kernel.org> References: <20260312080129.3483585-1-aneesh.kumar@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260312_010235_710955_B0FD3208 X-CRM114-Status: GOOD ( 11.99 ) 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 An RMM pdev object represents a communication channel between the RMM and a physical device, for example a PCIe device. With the required helpers now in place, update the connect callback to create an RMM pdev object. Cc: Marc Zyngier Cc: Catalin Marinas Cc: Will Deacon Cc: Jonathan Cameron Cc: Jason Gunthorpe Cc: Dan Williams Cc: Alexey Kardashevskiy Cc: Samuel Ortiz Cc: Xu Yilun Cc: Suzuki K Poulose Cc: Steven Price Reviewed-by: Jonathan Cameron Signed-off-by: Aneesh Kumar K.V (Arm) --- drivers/virt/coco/arm-cca-host/arm-cca.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/virt/coco/arm-cca-host/arm-cca.c b/drivers/virt/coco/arm-cca-host/arm-cca.c index 4ed5e8ec9e91..987c1be566ba 100644 --- a/drivers/virt/coco/arm-cca-host/arm-cca.c +++ b/drivers/virt/coco/arm-cca-host/arm-cca.c @@ -67,8 +67,8 @@ static void cca_tsm_pci_remove(struct pci_tsm *tsm) } } -static __maybe_unused int init_dev_communication_buffers(struct pci_dev *pdev, - struct cca_host_comm_data *comm_data) +static int init_dev_communication_buffers(struct pci_dev *pdev, + struct cca_host_comm_data *comm_data) { int ret = -ENOMEM; @@ -172,6 +172,16 @@ static int cca_tsm_connect(struct pci_dev *pdev) if (rc) goto err_tsm; + rc = init_dev_communication_buffers(pdev, &pf0_dsc->comm_data); + if (rc) + goto err_comm_buff; + rc = cca_pdev_create(pdev); + if (rc) + goto err_pdev_create; + + rc = cca_pdev_ide_setup(pdev); + if (rc) + goto err_ide_setup; /* * Once ide is setup, enable the stream at the endpoint * Root port will be done by RMM @@ -179,6 +189,12 @@ static int cca_tsm_connect(struct pci_dev *pdev) pci_ide_stream_enable(pdev, ide); return 0; +err_ide_setup: + cca_pdev_stop_and_destroy(pdev); +err_pdev_create: + free_dev_communication_buffers(&pf0_dsc->comm_data); +err_comm_buff: + tsm_ide_stream_unregister(ide); err_tsm: pci_ide_stream_teardown(rp, ide); pci_ide_stream_teardown(pdev, ide); @@ -205,6 +221,9 @@ static void cca_tsm_disconnect(struct pci_dev *pdev) ide = pf0_dsc->sel_stream; stream_id = ide->stream_id; + cca_pdev_stop_and_destroy(pdev); + free_dev_communication_buffers(&pf0_dsc->comm_data); + pci_ide_stream_release(ide); pf0_dsc->sel_stream = NULL; clear_bit(stream_id, cca_stream_ids); -- 2.43.0