From patchwork Fri Jan 11 15:37:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergei Miroshnichenko X-Patchwork-Id: 1023660 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=yadro.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=yadro.com header.i=@yadro.com header.b="Cjj9yDbM"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43bnGN6zL0z9s7h for ; Sat, 12 Jan 2019 02:43:56 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731969AbfAKPny (ORCPT ); Fri, 11 Jan 2019 10:43:54 -0500 Received: from mta-01.yadro.com ([89.207.88.251]:40074 "EHLO mta-01.yadro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731859AbfAKPny (ORCPT ); Fri, 11 Jan 2019 10:43:54 -0500 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 41E44419BD for ; Fri, 11 Jan 2019 15:37:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received; s=mta-01; t= 1547221049; x=1549035450; bh=Yj9lGaxnkQxL4mgWzyDOoIwRhCzn6tHdSBJ wM8CucLg=; b=Cjj9yDbMDOWhTjKJFPyfsMGN9o9vvgH2ByE/tuyJdMQ87l8OFCQ KEXLjfOO3DSSCIwElKUmFWgV+3JTN8UwTi9wOTWQNWTXNGSfnm0PfNqnJGVBNz6s Z5bsOFGKRo/GXCi1bHbV67fBtXIXbwxykv9POjL+Q2uOUwrCTZ8ZZuBc= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CpbUxCh5zRfl for ; Fri, 11 Jan 2019 18:37:29 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id B514841996 for ; Fri, 11 Jan 2019 18:37:24 +0300 (MSK) Received: from NB-148.yadro.com (172.17.15.60) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Fri, 11 Jan 2019 18:37:24 +0300 From: Sergey Miroshnichenko To: CC: , Sergey Miroshnichenko Subject: [PATCH RFC v2 16/21] PCI: Enable bridge's I/O and MEM access for hotplugged devices Date: Fri, 11 Jan 2019 18:37:02 +0300 Message-ID: <20190111153707.10140-17-s.miroshnichenko@yadro.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190111153707.10140-1-s.miroshnichenko@yadro.com> References: <20190111153707.10140-1-s.miroshnichenko@yadro.com> MIME-Version: 1.0 X-Originating-IP: [172.17.15.60] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-02.corp.yadro.com (172.17.10.102) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org After updating the bridge window resources, the PCI_COMMAND_IO and PCI_COMMAND_MEMORY bits of the bridge must be addressed as well. Signed-off-by: Sergey Miroshnichenko --- drivers/pci/pci.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index a5266f31b612..633aa2570008 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1602,6 +1602,14 @@ static void pci_enable_bridge(struct pci_dev *dev) pci_enable_bridge(bridge); if (pci_is_enabled(dev)) { + int i, bars = 0; + + for (i = PCI_BRIDGE_RESOURCES; i < DEVICE_COUNT_RESOURCE; i++) { + if (dev->resource[i].flags & (IORESOURCE_MEM | IORESOURCE_IO)) + bars |= (1 << i); + } + do_pci_enable_device(dev, bars); + if (!dev->is_busmaster) pci_set_master(dev); mutex_unlock(&dev->enable_mutex);