Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753781Ab0GAFqg (ORCPT ); Thu, 1 Jul 2010 01:46:36 -0400 Received: from hera.kernel.org ([140.211.167.34]:44758 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753642Ab0GAFqf (ORCPT ); Thu, 1 Jul 2010 01:46:35 -0400 Date: Thu, 1 Jul 2010 05:45:53 GMT From: "tip-bot for Darrick J. Wong" Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, djwong@us.ibm.com, tglx@linutronix.de Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, djwong@us.ibm.com, tglx@linutronix.de In-Reply-To: <20100701004519.GQ15515@tux1.beaverton.ibm.com> References: <20100701004519.GQ15515@tux1.beaverton.ibm.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/urgent] x86, Calgary: Limit the max PHB number to 256 Message-ID: Git-Commit-ID: d596043d71ff0d7b3d0bead19b1d68c55f003093 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Thu, 01 Jul 2010 05:46:03 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1780 Lines: 47 Commit-ID: d596043d71ff0d7b3d0bead19b1d68c55f003093 Gitweb: http://git.kernel.org/tip/d596043d71ff0d7b3d0bead19b1d68c55f003093 Author: Darrick J. Wong AuthorDate: Wed, 30 Jun 2010 17:45:19 -0700 Committer: H. Peter Anvin CommitDate: Wed, 30 Jun 2010 22:41:42 -0700 x86, Calgary: Limit the max PHB number to 256 The x3950 family can have as many as 256 PCI buses in a single system, so change the limits to the maximum. Since there can only be 256 PCI buses in one domain, we no longer need the BUG_ON check. Signed-off-by: Darrick J. Wong LKML-Reference: <20100701004519.GQ15515@tux1.beaverton.ibm.com> Signed-off-by: H. Peter Anvin --- arch/x86/kernel/pci-calgary_64.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 0b96b55..078d4ec 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -110,7 +110,7 @@ int use_calgary __read_mostly = 0; * x3950 (PCIE): 8 chassis, 32 PHBs per chassis = 256 * x3950 (PCIX): 8 chassis, 16 PHBs per chassis = 128 */ -#define MAX_PHB_BUS_NUM 384 +#define MAX_PHB_BUS_NUM 256 #define PHBS_PER_CALGARY 4 @@ -1056,8 +1056,6 @@ static int __init calgary_init_one(struct pci_dev *dev) struct iommu_table *tbl; int ret; - BUG_ON(dev->bus->number >= MAX_PHB_BUS_NUM); - bbar = busno_to_bbar(dev->bus->number); ret = calgary_setup_tar(dev, bbar); if (ret) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/