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From: William Lee Irwin III <wli@holomorphy.com>
To: linux-kernel@vger.kernel.org
Cc: Martin.Bligh@us.ibm.com, colpatch@us.ibm.com, hohnbaum@us.ibm.com
Subject: Re: [0/4] NUMA-Q: remove PCI bus number mangling
Date: Tue, 12 Nov 2002 12:53:50 -0800	[thread overview]
Message-ID: <20021112205350.GT23425@holomorphy.com> (raw)
In-Reply-To: <E18BaIc-0006Zs-00@holomorphy>

On Tue, Nov 12, 2002 at 04:37:46AM -0800, William Lee Irwin III wrote:
> This fixes a longstanding bug with respect to bridge handling as well as
> a Linux PCI faux pas, namely an attempt to support PCI domains with bus
> number mangling.
> The end result is that bridges off of quad 0 now work, and the code now
> follows Linux PCI conventions.
> [1/4] NUMA-Q: use sysdata as quad numbers in pci_scan_bus()"
> [2/4] NUMA-Q: fetch quad numbers from struct pci_bus"
> [3/4] NUMA-Q: use quad numbers passed to low-level config cycles"
> [4/4] NUMA-Q: remove last traces of bus number mangling"

Follow-on #2:

[6/4] NUMA-Q: remove unused bus number conversion functions


This removes unused detritus left over from the conversion to the
standard PCI arch-private data mechanisms.

 numa.c |   15 +++------------
 1 files changed, 3 insertions(+), 12 deletions(-)


diff -urpN pci-2.5.47-5/arch/i386/pci/numa.c pci-2.5.47-6/arch/i386/pci/numa.c
--- pci-2.5.47-5/arch/i386/pci/numa.c	2002-11-12 12:06:22.000000000 -0800
+++ pci-2.5.47-6/arch/i386/pci/numa.c	2002-11-12 12:10:25.000000000 -0800
@@ -6,15 +6,8 @@
 #include <linux/init.h>
 #include "pci.h"
 
-#define BUS2NODE(global) (mp_bus_id_to_node[global])
-#define BUS2LOCAL(global) (mp_bus_id_to_local[global])
-#define NODELOCAL2BUS(node,local) (quad_local_to_mp_bus_id[node][local])
-
-#define __PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg) \
-	(0x80000000 | (bus << 16) | (dev << 11) | (fn << 8) | (reg & ~3))
-
 #define PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg) \
-	__PCI_CONF1_MQ_ADDRESS(BUS2LOCAL(bus), dev, fn, reg)
+	(0x80000000 | (bus << 16) | (dev << 11) | (fn << 8) | (reg & ~3))
 
 static int bus2node(struct pci_bus *bus)
 {
@@ -30,7 +23,7 @@ static int __pci_conf1_mq_read (int seg,
 
 	spin_lock_irqsave(&pci_config_lock, flags);
 
-	outl_quad(__PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg), 0xCF8, seg);
+	outl_quad(PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg), 0xCF8, seg);
 
 	switch (len) {
 	case 1:
@@ -58,7 +51,7 @@ static int __pci_conf1_mq_write (int seg
 
 	spin_lock_irqsave(&pci_config_lock, flags);
 
-	outl_quad(__PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg), 0xCF8, seg);
+	outl_quad(PCI_CONF1_MQ_ADDRESS(bus, dev, fn, reg), 0xCF8, seg);
 
 	switch (len) {
 	case 1:
@@ -77,8 +70,6 @@ static int __pci_conf1_mq_write (int seg
 	return 0;
 }
 
-#undef PCI_CONF1_MQ_ADDRESS
-
 static int pci_conf1_mq_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
 {
 	return __pci_conf1_mq_read(bus2node(bus), bus->number, PCI_SLOT(devfn), 

      parent reply	other threads:[~2002-11-12 20:49 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-12 12:37 [0/4] NUMA-Q: remove PCI bus number mangling William Lee Irwin III
2002-11-12 20:52 ` William Lee Irwin III
2002-11-12 20:55   ` William Lee Irwin III
2002-11-12 21:29   ` Matthew Dobson
2002-11-12 21:35     ` William Lee Irwin III
2002-11-12 21:39       ` William Lee Irwin III
2002-11-12 22:46         ` Martin J. Bligh
2002-11-12 21:53           ` William Lee Irwin III
2002-11-12 23:53             ` Martin J. Bligh
2002-11-12 22:59               ` William Lee Irwin III
2002-11-12 23:19                 ` William Lee Irwin III
2002-11-12 23:58                 ` William Lee Irwin III
2002-11-13  0:04                   ` Greg KH
2002-11-13  0:12                     ` William Lee Irwin III
2002-11-13  0:20                       ` Greg KH
2002-11-13  0:28                         ` William Lee Irwin III
2002-11-13  1:01                           ` William Lee Irwin III
2002-11-13 12:07                           ` Ivan Kokshaysky
2002-11-13 20:59                             ` William Lee Irwin III
2002-11-13 10:10                         ` William Lee Irwin III
2002-11-13 11:20                           ` William Lee Irwin III
2003-01-01  9:28                             ` William Lee Irwin III
2002-11-12 21:48       ` William Lee Irwin III
2002-11-12 21:48       ` William Lee Irwin III
2002-11-12 20:53 ` William Lee Irwin III [this message]

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