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| author |   Andrew Hastings <abh@cray.com> | 2007-05-11 11:23:19 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-11 12:53:00 -0700 |
| commit | 547c5355d1b1167af39e315c82aa9ff1398596f4 (patch) | |
| tree | 423d8e1473c5731040b35ae5665dc72f5233abb4 /drivers/char/agp/amd64-agp.c | |
| parent | i386: Fix compilation of verify_cpu.S on old binutils (diff) | |
| download | linux-dev-547c5355d1b1167af39e315c82aa9ff1398596f4.tar.xz linux-dev-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 '')
| -rw-r--r-- | drivers/char/agp/amd64-agp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c index c9f0f250d78f..801abdd29066 100644 --- a/drivers/char/agp/amd64-agp.c +++ b/drivers/char/agp/amd64-agp.c @@ -268,7 +268,7 @@ static int __devinit aperture_valid(u64 aper, u32 size) printk(KERN_ERR PFX "Aperture too small (%d MB)\n", size>>20); return 0; } - if (aper + size > 0xffffffff) { + if ((u64)aper + size > 0x100000000ULL) { printk(KERN_ERR PFX "Aperture out of bounds\n"); return 0; } |