From patchwork Sat Sep 26 20:55:51 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 7272821 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 613089F380 for ; Sat, 26 Sep 2015 22:23:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 88158208D7 for ; Sat, 26 Sep 2015 22:23:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 850D62090E for ; Sat, 26 Sep 2015 22:23:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754441AbbIZU5m (ORCPT ); Sat, 26 Sep 2015 16:57:42 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:55314 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754393AbbIZU5b (ORCPT ); Sat, 26 Sep 2015 16:57:31 -0400 Received: from localhost (c-50-170-35-168.hsd1.wa.comcast.net [50.170.35.168]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 1A8E21177; Sat, 26 Sep 2015 20:57:31 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, linux-pci@vger.kernel.org, Bjorn Helgaas , Meelis Roos , Helge Deller Subject: [PATCH 4.2 099/134] PCI, parisc: Enable 64-bit bus addresses on PA-RISC Date: Sat, 26 Sep 2015 13:55:51 -0700 Message-Id: <20150926205317.816721300@linuxfoundation.org> X-Mailer: git-send-email 2.5.3 In-Reply-To: <20150926205311.819185658@linuxfoundation.org> References: <20150926205311.819185658@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 4.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Helge Deller commit e02a653e15d8d32e9e768fd99a3271aafe5c5d77 upstream. Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of 64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC. It turned out that due to enabling the 64-bit addresses, the PCI logic decided to use the GMMIO instead of the LMMIO region. This commit simply disables registering the GMMIO and thus we fall back to use the LMMIO region as before. Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4 ("PCI: Don't use 64-bit bus addresses on PA-RISC") To: linux-parisc@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: Bjorn Helgaas Cc: Meelis Roos Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman --- drivers/parisc/lba_pci.c | 7 +++++-- drivers/pci/Kconfig | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1556,8 +1556,11 @@ lba_driver_probe(struct parisc_device *d if (lba_dev->hba.lmmio_space.flags) pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space, lba_dev->hba.lmmio_space_offset); - if (lba_dev->hba.gmmio_space.flags) - pci_add_resource(&resources, &lba_dev->hba.gmmio_space); + if (lba_dev->hba.gmmio_space.flags) { + /* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */ + pr_warn("LBA: Not registering GMMIO space %pR\n", + &lba_dev->hba.gmmio_space); + } pci_add_resource(&resources, &lba_dev->hba.bus_num); --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -2,7 +2,7 @@ # PCI configuration # config PCI_BUS_ADDR_T_64BIT - def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC)) + def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT) depends on PCI config PCI_MSI