From patchwork Sat Oct 3 18:13:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 7322251 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 607ADBEEA4 for ; Sat, 3 Oct 2015 18:16:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8833C20630 for ; Sat, 3 Oct 2015 18:16:49 +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 A889D20592 for ; Sat, 3 Oct 2015 18:16:48 +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 1ZiRKX-0005FP-71; Sat, 03 Oct 2015 18:14:45 +0000 Received: from pandora.arm.linux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZiRJv-0004ZP-Sa for linux-arm-kernel@lists.infradead.org; Sat, 03 Oct 2015 18:14:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References:In-Reply-To; bh=j4KX5HHXxkvDVzxgnno3P4s0hcBgmIHrufbnuA2pD2M=; b=jmKRXRA4yLrdLspRiYYC5yZAzPwo8d3vYRAOn/2Ol0CLYYgj/6PhOVwItaeHBwAH3GKG7vf9FPnaKRGsaY1LZwWakMkcaDqxw4/L8XLozRNtqjCQcptQhDoYY3QB8bNQKFO7VevYAY4Rvglb+iiRJcLOwqg+ze+Szu2HP00YcV8=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:46725 helo=rmk-PC.arm.linux.org.uk) by pandora.arm.linux.org.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZiRJW-0005tj-2c; Sat, 03 Oct 2015 19:13:42 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZiRJS-0004JN-6A; Sat, 03 Oct 2015 19:13:38 +0100 In-Reply-To: <20151003181228.GI21513@n2100.arm.linux.org.uk> References: <20151003181228.GI21513@n2100.arm.linux.org.uk> From: Russell King To: Jason Cooper , Thomas Petazzoni Subject: [PATCH 9/9] pci: mvebu: remove code restricting accesses to slot 0 MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Sat, 03 Oct 2015 19:13:38 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151003_111408_429223_A7C42E8F X-CRM114-Status: GOOD ( 12.03 ) X-Spam-Score: -4.3 (----) 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: Bjorn Helgaas , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_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 Now that we advertise a PCIe capability, the Linux PCI layer will not scan the bus for devices other than in slot 0. This makes the work-around to trap accesses to devices other than slot 0 unnecessary. Signed-off-by: Russell King --- drivers/pci/host/pci-mvebu.c | 24 ------------------------ 1 file changed, 24 deletions(-) diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c index 6310f2a84cfd..53b79c5f0559 100644 --- a/drivers/pci/host/pci-mvebu.c +++ b/drivers/pci/host/pci-mvebu.c @@ -794,17 +794,6 @@ static int mvebu_pcie_wr_conf(struct pci_bus *bus, u32 devfn, if (!mvebu_pcie_link_up(port)) return PCIBIOS_DEVICE_NOT_FOUND; - /* - * On the secondary bus, we don't want to expose any other - * device than the device physically connected in the PCIe - * slot, visible in slot 0. In slot 1, there's a special - * Marvell device that only makes sense when the Armada is - * used as a PCIe endpoint. - */ - if (bus->number == port->bridge.secondary_bus && - PCI_SLOT(devfn) != 0) - return PCIBIOS_DEVICE_NOT_FOUND; - /* Access the real PCIe interface */ ret = mvebu_pcie_hw_wr_conf(port, bus, devfn, where, size, val); @@ -835,19 +824,6 @@ static int mvebu_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where, return PCIBIOS_DEVICE_NOT_FOUND; } - /* - * On the secondary bus, we don't want to expose any other - * device than the device physically connected in the PCIe - * slot, visible in slot 0. In slot 1, there's a special - * Marvell device that only makes sense when the Armada is - * used as a PCIe endpoint. - */ - if (bus->number == port->bridge.secondary_bus && - PCI_SLOT(devfn) != 0) { - *val = 0xffffffff; - return PCIBIOS_DEVICE_NOT_FOUND; - } - /* Access the real PCIe interface */ ret = mvebu_pcie_hw_rd_conf(port, bus, devfn, where, size, val);