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| author | Andrew Hastings | 2007-05-11 11:23:19 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-05-11 21:53:00 +0200 |
| commit | 547c5355d1b1167af39e315c82aa9ff1398596f4 (patch) | |
| tree | 423d8e1473c5731040b35ae5665dc72f5233abb4 /arch/x86_64/kernel/pci-gart.c | |
| parent | i386: Fix compilation of verify_cpu.S on old binutils (diff) | |
| download | kernel-qcow2-linux-547c5355d1b1167af39e315c82aa9ff1398596f4.tar.gz kernel-qcow2-linux-547c5355d1b1167af39e315c82aa9ff1398596f4.tar.xz kernel-qcow2-linux-547c5355d1b1167af39e315c82aa9ff1398596f4.zip | |
x86_64: off-by-two error in aperture.c
I'm using a custom BIOS to configure the northbridge GART at address
0x80000000, size 2G. Linux complains:
"Aperture from northbridge cpu 0 beyond 4GB. Ignoring."
I think there's an off-by-two error in arch/x86_64/kernel/aperture.c:
AK: use correct types for i386
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86_64/kernel/pci-gart.c')
| -rw-r--r-- | arch/x86_64/kernel/pci-gart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c index 373ef66ca1dc..ae091cdc1a4d 100644 --- a/arch/x86_64/kernel/pci-gart.c +++ b/arch/x86_64/kernel/pci-gart.c @@ -476,7 +476,7 @@ static __init unsigned read_aperture(struct pci_dev *dev, u32 *size) aper_base <<= 25; aper_size = (32 * 1024 * 1024) << aper_order; - if (aper_base + aper_size >= 0xffffffff || !aper_size) + if (aper_base + aper_size > 0x100000000UL || !aper_size) aper_base = 0; *size = aper_size; |