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Message-id: <200801151031.46279.yinghai.lu@sun.com>
Date: Tue, 15 Jan 2008 10:31:45 -0800
From: Yinghai Lu <Yinghai.Lu@....COM>
To: Ingo Molnar <mingo@...e.hu>
Cc: Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Christoph Lameter <clameter@....com>, ebiederm@...ssion.com,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86_64: checking aperture report for node instead
of cpu v2
[PATCH] x86_64: checking aperture report for node instead of cpu v2
currently when gart iommu is enabled by BIOS or previous we got
"
Checking aperture...
CPU 0: aperture @4000000 size 64MB
CPU 1: aperture @4000000 size 64MB
"
we should use use Node instead.
we will get
"
Checking aperture...
Node 0: aperture @4000000 size 64MB
Node 1: aperture @4000000 size 64MB
"
Signed-off-by: Yinghai Lu <yinghai.lu@....com>
Index: linux-2.6/arch/x86/kernel/aperture_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/aperture_64.c
+++ linux-2.6/arch/x86/kernel/aperture_64.c
@@ -312,6 +312,7 @@ void __init gart_iommu_hole_init(void)
u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
u64 aper_base, last_aper_base = 0;
int fix, num, valid_agp = 0;
+ int node;
if (gart_iommu_aperture_disabled || !fix_aperture ||
!early_pci_allowed())
@@ -320,6 +321,7 @@ void __init gart_iommu_hole_init(void)
printk(KERN_INFO "Checking aperture...\n");
fix = 0;
+ node = 0;
for (num = 24; num < 32; num++) {
if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
continue;
@@ -332,8 +334,9 @@ void __init gart_iommu_hole_init(void)
aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff;
aper_base <<= 25;
- printk(KERN_INFO "CPU %d: aperture @ %Lx size %u MB\n",
- num-24, aper_base, aper_size>>20);
+ printk(KERN_INFO "Node %d: aperture @ %Lx size %u MB\n",
+ node, aper_base, aper_size >> 20);
+ node++;
if (!aperture_valid(aper_base, aper_size)) {
fix = 1;
--
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