From patchwork Mon Mar 11 13:31:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergei Miroshnichenko X-Patchwork-Id: 10847461 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AE53C1669 for ; Mon, 11 Mar 2019 13:32:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 46E66292E0 for ; Mon, 11 Mar 2019 13:31:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 44F97292DE; Mon, 11 Mar 2019 13:31:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A4EAC29454 for ; Mon, 11 Mar 2019 13:31:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727388AbfCKNbi (ORCPT ); Mon, 11 Mar 2019 09:31:38 -0400 Received: from mta-01.yadro.com ([89.207.88.251]:50972 "EHLO mta-01.yadro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727626AbfCKNbh (ORCPT ); Mon, 11 Mar 2019 09:31:37 -0400 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 68201419CA; Mon, 11 Mar 2019 13:31:36 +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= 1552311095; x=1554125496; bh=Lng2D1PYFils89ewEVSxOowNkJZhOaTQIft ZeaalTUk=; b=AZIZynvfwl9Kd/Ro4/+KfNyEJ5btwb9dDcIDHKTvX5E6uz/vekO xhVYBZN1Q0rPZrkJzstkr6+d7rGvQFaDhLz41plo3gYQh2kJO9f0Oqj2CpMoM7EJ gfZ13u14eGOBmzRlo4XQ7mdI5Hyr/k9hSTyUuYsiTXbqTPX4B2ZS+bEY= 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 Ud4tR18LosMb; Mon, 11 Mar 2019 16:31:35 +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 38462419CF; Mon, 11 Mar 2019 16:31:32 +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; Mon, 11 Mar 2019 16:31:31 +0300 From: Sergey Miroshnichenko To: , CC: Bjorn Helgaas , , Sergey Miroshnichenko Subject: [PATCH RFC v4 09/21] PCI: Mark immovable BARs with PCI_FIXED Date: Mon, 11 Mar 2019 16:31:10 +0300 Message-ID: <20190311133122.11417-10-s.miroshnichenko@yadro.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190311133122.11417-1-s.miroshnichenko@yadro.com> References: <20190311133122.11417-1-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 X-Virus-Scanned: ClamAV using ClamSMTP If a PCIe device driver doesn't yet have support for movable BARs, mark device's BARs with IORESOURCE_PCI_FIXED. Signed-off-by: Sergey Miroshnichenko --- drivers/pci/probe.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index dc935f82a595..1cf6ec960236 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3262,6 +3262,21 @@ static void pci_bus_rescan_prepare(struct pci_bus *bus) } else if (dev->driver && dev->driver->rescan_prepare) { dev->driver->rescan_prepare(dev); + } else if (dev->driver || ((dev->class >> 8) == PCI_CLASS_DISPLAY_VGA)) { + int i; + + for (i = 0; i < PCI_NUM_RESOURCES; i++) { + struct resource *r = &dev->resource[i]; + + if (!r->flags || !r->parent || + (r->flags & IORESOURCE_UNSET) || + (r->flags & IORESOURCE_PCI_FIXED)) + continue; + + r->flags |= IORESOURCE_PCI_FIXED; + pci_warn(dev, "%s: no support for movable BARs, mark BAR %d (%pR) as fixed\n", + __func__, i, r); + } } } }