From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:48141 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753948AbbDHAZ6 (ORCPT ); Tue, 7 Apr 2015 20:25:58 -0400 From: Yinghai Lu To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, Yinghai Lu , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Gavin Shan , Yijing Wang , Anton Blanchard , linuxppc-dev@lists.ozlabs.org Subject: [PATCH] powerpc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in of parsing Date: Tue, 7 Apr 2015 17:24:29 -0700 Message-Id: <1428452669-24824-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org List-ID: For device resource PREF bit setting under bridge 64-bit pref resource, we need to make sure only set PREF for 64bit resource, so set IORESOUCE_MEM_64 for 64bit resource during of device resource flags parsing. Link: https://bugzilla.kernel.org/show_bug.cgi?id=96261 Link: https://bugzilla.kernel.org/show_bug.cgi?id=96241 Signed-off-by: Yinghai Lu Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Gavin Shan Cc: Yijing Wang Cc: Anton Blanchard Cc: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/kernel/pci_of_scan.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: linux-2.6/arch/powerpc/kernel/pci_of_scan.c =================================================================== --- linux-2.6.orig/arch/powerpc/kernel/pci_of_scan.c +++ linux-2.6/arch/powerpc/kernel/pci_of_scan.c @@ -44,8 +44,10 @@ static unsigned int pci_parse_of_flags(u if (addr0 & 0x02000000) { flags = IORESOURCE_MEM | PCI_BASE_ADDRESS_SPACE_MEMORY; - flags |= (addr0 >> 22) & PCI_BASE_ADDRESS_MEM_TYPE_64; flags |= (addr0 >> 28) & PCI_BASE_ADDRESS_MEM_TYPE_1M; + if (addr0 & 0x01000000) + flags |= IORESOURCE_MEM_64 + | PCI_BASE_ADDRESS_MEM_TYPE_64; if (addr0 & 0x40000000) flags |= IORESOURCE_PREFETCH | PCI_BASE_ADDRESS_MEM_PREFETCH;