From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:49901 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756383AbbGFXlv (ORCPT ); Mon, 6 Jul 2015 19:41:51 -0400 From: Yinghai Lu To: Bjorn Helgaas , David Miller , David Ahern , Benjamin Herrenschmidt , Wei Yang , TJ , Yijing Wang Cc: Andrew Morton , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH 24/36] PCI: Only treat non-pef mmio64 as pref if host-bridge has_mem64 Date: Mon, 6 Jul 2015 16:39:14 -0700 Message-Id: <1436225966-27247-25-git-send-email-yinghai@kernel.org> In-Reply-To: <1436225966-27247-1-git-send-email-yinghai@kernel.org> References: <1436225966-27247-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org List-ID: If host bridge does not have mmio64 above 4G, We don't need to treat device non-pref mmio64 as as pref mmio64. Signed-off-by: Yinghai Lu --- drivers/pci/setup-bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index ab7bafe..e8e9029 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1010,7 +1010,7 @@ int pci_claim_bridge_resource(struct pci_dev *bridge, int i) static bool pci_up_path_over_pref_mem64(struct pci_bus *bus) { if (pci_is_root_bus(bus)) - return true; + return to_pci_host_bridge(bus->bridge)->has_mem64; if (bus->self && !(bus->self->resource[PCI_BRIDGE_RESOURCES + 2].flags & IORESOURCE_MEM_64)) -- 1.8.4.5