From patchwork Thu Feb 4 16:10:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Burton X-Patchwork-Id: 8225051 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id DD1B0BEEE5 for ; Thu, 4 Feb 2016 16:13:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0AC4D203A9 for ; Thu, 4 Feb 2016 16:13:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 32551203AB for ; Thu, 4 Feb 2016 16:13:53 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aRMWB-0004u6-A3; Thu, 04 Feb 2016 16:12:27 +0000 Received: from mailapp01.imgtec.com ([195.59.15.196]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aRMW3-0004Yr-IO for linux-arm-kernel@lists.infradead.org; Thu, 04 Feb 2016 16:12:22 +0000 Received: from hhmail02.hh.imgtec.org (unknown [10.100.10.20]) by Websense Email Security Gateway with ESMTPS id 6B327FA94DF38; Thu, 4 Feb 2016 16:11:57 +0000 (GMT) Received: from LEMAIL01.le.imgtec.org (192.168.152.62) by hhmail02.hh.imgtec.org (10.100.10.20) with Microsoft SMTP Server (TLS) id 14.3.266.1; Thu, 4 Feb 2016 16:12:00 +0000 Received: from localhost (10.100.200.26) by LEMAIL01.le.imgtec.org (192.168.152.62) with Microsoft SMTP Server (TLS) id 14.3.210.2; Thu, 4 Feb 2016 16:11:59 +0000 From: Paul Burton To: Subject: [PATCH v3 5/6] PCI: xilinx: Fix INTX irq dispatch Date: Thu, 4 Feb 2016 16:10:12 +0000 Message-ID: <1454602213-967-6-git-send-email-paul.burton@imgtec.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1454602213-967-1-git-send-email-paul.burton@imgtec.com> References: <1454602213-967-1-git-send-email-paul.burton@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [10.100.200.26] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160204_081220_038911_4AF9CBE1 X-CRM114-Status: UNSURE ( 8.29 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.4 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lorenzo Pieralisi , linux-kernel@vger.kernel.org, Paul Burton , linux-pci@vger.kernel.org, Michal Simek , Russell Joyce , Bharat Kumar Gogada , Grygorii Strashko , Ravikiran Gummaluri , linux-arm-kernel@lists.infradead.org, Jingoo Han , Bjorn Helgaas , Thomas Gleixner , Jiang Liu , =?UTF-8?q?S=C3=B6ren=20Brinkmann?= Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 The IRQ domain for INTX interrupts has 4 entries, numbered 0 to 3. This matches what the hardware reports from the interrupt FIFO exactly, but xilinx_pcie_intr_handler was adding 1 to that value to convert to the range 1 to 4. Stop adding 1, such that all of INTA through to INTD fall within the range of the IRQ domain. Signed-off-by: Paul Burton Fixes: 8961def56845 ("PCI: xilinx: Add Xilinx AXI PCIe Host Bridge IP driver") --- Changes in v3: - Split out from Boston patchset. Changes in v2: - Add Fixes tag. drivers/pci/host/pcie-xilinx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c index 6c5a503..8013e83 100644 --- a/drivers/pci/host/pcie-xilinx.c +++ b/drivers/pci/host/pcie-xilinx.c @@ -451,8 +451,8 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data) irq = pcie_read(port, XILINX_PCIE_REG_RPIFR2) & XILINX_PCIE_RPIFR2_MSG_DATA; } else { - val = ((val & XILINX_PCIE_RPIFR1_INTR_MASK) >> - XILINX_PCIE_RPIFR1_INTR_SHIFT) + 1; + val = (val & XILINX_PCIE_RPIFR1_INTR_MASK) >> + XILINX_PCIE_RPIFR1_INTR_SHIFT; irq = irq_find_mapping(port->irq_domain, val); }