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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 02CE6C43387 for ; Mon, 14 Jan 2019 11:17:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B674720656 for ; Mon, 14 Jan 2019 11:17:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="P7XFzsI5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726850AbfANLRF (ORCPT ); Mon, 14 Jan 2019 06:17:05 -0500 Received: from fllv0016.ext.ti.com ([198.47.19.142]:46922 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726561AbfANLRC (ORCPT ); Mon, 14 Jan 2019 06:17:02 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id x0EBGMva065556; Mon, 14 Jan 2019 05:16:22 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1547464582; bh=9uy7oBAgopBKXmOWf1Xu6i0EmqFED+atLS7+JVzPan8=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=P7XFzsI5AoIR5lwIf7kdytlIcvYG00NuEKVT4PSzp9QW8AhQvxBUBmmb2XZYz8W8b GKgjjaaZ/1uHaeqpM/3tdbWaQwPnmby9LN5zD/X6UYTmmxqapNrzQcC+UYaDcXkRbv Im82/pbFYLEuc3n10X216xnTWvR7ImNq0PACzjiM= Received: from DFLE103.ent.ti.com (dfle103.ent.ti.com [10.64.6.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x0EBGMVu024049 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 14 Jan 2019 05:16:22 -0600 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Mon, 14 Jan 2019 05:16:21 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Mon, 14 Jan 2019 05:16:21 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id x0EBFd1c011560; Mon, 14 Jan 2019 05:16:18 -0600 From: Kishon Vijay Abraham I To: Kishon Vijay Abraham I , Lorenzo Pieralisi , Gustavo Pimentel , Alan Douglas , Shawn Lin , Heiko Stuebner CC: Bjorn Helgaas , Jingoo Han , , , , , Subject: [PATCH v2 10/15] PCI: pci-epf-test: Do not allocate next BARs memory if current BAR is 64Bit Date: Mon, 14 Jan 2019 16:45:08 +0530 Message-ID: <20190114111513.21618-11-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190114111513.21618-1-kishon@ti.com> References: <20190114111513.21618-1-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's useless to allocate memory for next BAR if the current BAR is a 64Bit BAR. Stop allocating memory for the next BAR, if the current BARs flag indicates this is a 64Bit BAR. Signed-off-by: Kishon Vijay Abraham I --- drivers/pci/endpoint/functions/pci-epf-test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index 44cc31343a80..ade296180383 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -429,6 +429,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) { struct pci_epf_test *epf_test = epf_get_drvdata(epf); struct device *dev = &epf->dev; + struct pci_epf_bar *epf_bar; void *base; int bar; enum pci_barno test_reg_bar = epf_test->test_reg_bar; @@ -442,6 +443,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) epf_test->reg[test_reg_bar] = base; for (bar = BAR_0; bar <= BAR_5; bar++) { + epf_bar = &epf->bar[bar]; if (bar == test_reg_bar) continue; base = pci_epf_alloc_space(epf, bar_size[bar], bar); @@ -449,6 +451,8 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) dev_err(dev, "Failed to allocate space for BAR%d\n", bar); epf_test->reg[bar] = base; + if (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64) + bar++; } return 0; -- 2.17.1