From patchwork Mon Mar 27 09:49:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Pieralisi X-Patchwork-Id: 9646025 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.web.codeaurora.org (Postfix) with ESMTP id 2B2C3602C8 for ; Mon, 27 Mar 2017 09:52:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0704B28249 for ; Mon, 27 Mar 2017 09:52:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F01CE28364; Mon, 27 Mar 2017 09:52:48 +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=-6.9 required=2.0 tests=BAYES_00,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 7F2742833B for ; Mon, 27 Mar 2017 09:52:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752808AbdC0Jw0 (ORCPT ); Mon, 27 Mar 2017 05:52:26 -0400 Received: from foss.arm.com ([217.140.101.70]:59672 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752657AbdC0JwW (ORCPT ); Mon, 27 Mar 2017 05:52:22 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BF8EF165C; Mon, 27 Mar 2017 02:50:46 -0700 (PDT) Received: from red-moon.cambridge.arm.com (red-moon.cambridge.arm.com [10.1.206.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9890D3F23B; Mon, 27 Mar 2017 02:50:45 -0700 (PDT) From: Lorenzo Pieralisi To: linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , Bjorn Helgaas , Jingoo Han , Joao Pinto Subject: [PATCH v2 16/22] PCI: designware: update PCI config space remap function Date: Mon, 27 Mar 2017 10:49:44 +0100 Message-Id: <20170327094954.7162-17-lorenzo.pieralisi@arm.com> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> References: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> 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 PCI configuration space should be mapped with a memory region type that generates on the CPU host bus non-posted write transations. Update the driver to use the devm_ioremap_nopost* interface to make sure the correct memory mappings for PCI configuration space are used. Signed-off-by: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Jingoo Han Cc: Joao Pinto --- drivers/pci/dwc/pcie-designware-host.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c index 5ba3349..d2dd228 100644 --- a/drivers/pci/dwc/pcie-designware-host.c +++ b/drivers/pci/dwc/pcie-designware-host.c @@ -338,8 +338,8 @@ int dw_pcie_host_init(struct pcie_port *pp) } if (!pci->dbi_base) { - pci->dbi_base = devm_ioremap(dev, pp->cfg->start, - resource_size(pp->cfg)); + pci->dbi_base = devm_ioremap_nopost(dev, pp->cfg->start, + resource_size(pp->cfg)); if (!pci->dbi_base) { dev_err(dev, "error with ioremap\n"); ret = -ENOMEM; @@ -350,8 +350,8 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->mem_base = pp->mem->start; if (!pp->va_cfg0_base) { - pp->va_cfg0_base = devm_ioremap(dev, pp->cfg0_base, - pp->cfg0_size); + pp->va_cfg0_base = devm_ioremap_nopost(dev, pp->cfg0_base, + pp->cfg0_size); if (!pp->va_cfg0_base) { dev_err(dev, "error with ioremap in function\n"); ret = -ENOMEM; @@ -360,8 +360,8 @@ int dw_pcie_host_init(struct pcie_port *pp) } if (!pp->va_cfg1_base) { - pp->va_cfg1_base = devm_ioremap(dev, pp->cfg1_base, - pp->cfg1_size); + pp->va_cfg1_base = devm_ioremap_nopost(dev, pp->cfg1_base, + pp->cfg1_size); if (!pp->va_cfg1_base) { dev_err(dev, "error with ioremap\n"); ret = -ENOMEM;