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,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 A9F87C432C3 for ; Sat, 16 Nov 2019 16:28:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7472E216F4 for ; Sat, 16 Nov 2019 16:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573921720; bh=mdj7XPfQr7aTT3QJ1EjZS6B280N60fbSQCKhLUyoZvw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2oP4x156er8YHd4YrjxhjCoWGTcLipQC0PpiEshfSh31pc9s3eegq3GH8G/KGj9s/ HYVTM5hn6t7c+CIUVcDklR/IX7qFDH7tl8dEFkiaswz/QSwJEfOS7xl+oYWQMUBCon w2VjxZvSMdhr7NZXCjaBrDhRjwNJCDVlUKt5KApM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730840AbfKPQ2j (ORCPT ); Sat, 16 Nov 2019 11:28:39 -0500 Received: from mail.kernel.org ([198.145.29.99]:44266 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727606AbfKPPlR (ORCPT ); Sat, 16 Nov 2019 10:41:17 -0500 Received: from sasha-vm.mshome.net (unknown [50.234.116.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4509720748; Sat, 16 Nov 2019 15:41:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573918877; bh=mdj7XPfQr7aTT3QJ1EjZS6B280N60fbSQCKhLUyoZvw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aG/v/k37iHYzY2OMgE/sUOUGiftiT+KbvfL6/4i7YL5fDv2TvCG1kT28AhiQicBd4 gaZQfb4Lci9ttdYY6D1sbx25lYNikNKj5Elt8KwkbZWztJerIX1EIytIdnBZLBL5Ky jNS35FJf+xIb8S7s13nMjtnHEMCX/6bLdpLiTTDw= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alan Douglas , Lorenzo Pieralisi , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 006/237] PCI: cadence: Write MSI data with 32bits Date: Sat, 16 Nov 2019 10:37:21 -0500 Message-Id: <20191116154113.7417-6-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191116154113.7417-1-sashal@kernel.org> References: <20191116154113.7417-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alan Douglas [ Upstream commit e81e36a96bb56f243b5ac1d114c37c086761595b ] According to the PCIe specification, although the MSI data is only 16bits, the upper 16bits should be written as 0. Use writel instead of writew when writing the MSI data to the host. Fixes: 37dddf14f1ae ("PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller") Signed-off-by: Alan Douglas Signed-off-by: Lorenzo Pieralisi Signed-off-by: Sasha Levin --- drivers/pci/controller/pcie-cadence-ep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c index 6692654798d44..c3a088910f48d 100644 --- a/drivers/pci/controller/pcie-cadence-ep.c +++ b/drivers/pci/controller/pcie-cadence-ep.c @@ -355,7 +355,7 @@ static int cdns_pcie_ep_send_msi_irq(struct cdns_pcie_ep *ep, u8 fn, ep->irq_pci_addr = (pci_addr & ~pci_addr_mask); ep->irq_pci_fn = fn; } - writew(data, ep->irq_cpu_addr + (pci_addr & pci_addr_mask)); + writel(data, ep->irq_cpu_addr + (pci_addr & pci_addr_mask)); return 0; } -- 2.20.1