Messages in this thread | | | Date | Fri, 14 Sep 2007 10:12:52 -0700 | From | "Yinghai Lu" <> | Subject | Re: MTRR initialization |
| |
On 9/14/07, Howard Chu <hyc@symas.com> wrote: > Hi, was wondering if anyone else has been tripped up by this... I've got 4GB of > RAM in my Asus A8V Deluxe and memory hole mapping enabled in the BIOS. By > default, my system boots up with these MTRR settings: > > reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 > reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 > reg02: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1 > reg03: base=0xc0000000 (3072MB), size= 256MB: write-combining, count=1
BIOS should have another setup option about MTRR (continous?) then you could get
> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 > reg01: base=0x100000000 (2048MB), size=1024MB: write-back, count=1 reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 ===> if you have rev E...instead of rev F.
YH - 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/
| |