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 X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLACK,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4405C43387 for ; Thu, 20 Dec 2018 08:34:00 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5C4A121720 for ; Thu, 20 Dec 2018 08:34:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C4A121720 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43L4mQ3YNxzDr4C for ; Thu, 20 Dec 2018 19:33:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=ozlabs.ru (client-ip=107.173.13.209; helo=ozlabs.ru; envelope-from=aik@ozlabs.ru; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Received: from ozlabs.ru (ozlabs.ru [107.173.13.209]) by lists.ozlabs.org (Postfix) with ESMTP id 43L4YL6S5VzDqsq for ; Thu, 20 Dec 2018 19:24:22 +1100 (AEDT) Received: from fstn1-p1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 5CDBBAE802FA; Thu, 20 Dec 2018 03:24:19 -0500 (EST) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel v7 07/20] powerpc/pseries/npu: Enable platform support Date: Thu, 20 Dec 2018 19:23:37 +1100 Message-Id: <20181220082350.58113-8-aik@ozlabs.ru> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181220082350.58113-1-aik@ozlabs.ru> References: <20181220082350.58113-1-aik@ozlabs.ru> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christoph Hellwig , Jose Ricardo Ziviani , kvm@vger.kernel.org, Alexey Kardashevskiy , Alistair Popple , Daniel Henrique Barboza , Alex Williamson , kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org, Sam Bobroff , Piotr Jaroszynski , =?UTF-8?q?Leonardo=20Augusto=20Guimar=C3=A3es=20Garcia?= , Reza Arbab , David Gibson Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" We already changed NPU API for GPUs to not to call OPAL and the remaining bit is initializing NPU structures. This searches for POWER9 NVLinks attached to any device on a PHB and initializes an NPU structure if any found. Signed-off-by: Alexey Kardashevskiy --- Changes: v5: * added WARN_ON_ONCE v4: * dropped "IBM,npu-vphb" compatible type on PHB and use the type of NVLink --- arch/powerpc/platforms/pseries/pci.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 41d8a4d..7725825 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -29,6 +29,7 @@ #include #include #include +#include #include "pseries.h" #if 0 @@ -237,6 +238,8 @@ static void __init pSeries_request_regions(void) void __init pSeries_final_fixup(void) { + struct pci_controller *hose; + pSeries_request_regions(); eeh_probe_devices(); @@ -246,6 +249,25 @@ void __init pSeries_final_fixup(void) ppc_md.pcibios_sriov_enable = pseries_pcibios_sriov_enable; ppc_md.pcibios_sriov_disable = pseries_pcibios_sriov_disable; #endif + list_for_each_entry(hose, &hose_list, list_node) { + struct device_node *dn = hose->dn, *nvdn; + + while (1) { + dn = of_find_all_nodes(dn); + if (!dn) + break; + nvdn = of_parse_phandle(dn, "ibm,nvlink", 0); + if (!nvdn) + continue; + if (!of_device_is_compatible(nvdn, "ibm,npu-link")) + continue; + if (!of_device_is_compatible(nvdn->parent, + "ibm,power9-npu")) + continue; + WARN_ON_ONCE(pnv_npu2_init(hose)); + break; + } + } } /* -- 2.17.1