Running with VGA
Li-Ta Lo
ollie at lanl.gov
Fri Jan 14 11:48:00 CET 2005
On Fri, 2005-01-14 at 12:45, YhLu wrote:
> I check the amd_early_mtrr.c with old amd earymtrr.inc. It seems the only
> difference is not enable SYSCFG_MSR_MtrrFixDramModEn before clear MTRR
> fixed.
>
Probably I didn't commit all the old code I used to have.
Anyway, the things we have to do in early_mtrr.c are:
1. enable SYSCFG_MSR_MtrrFixDramModEn
2. set fixed mtrrs for 0-0x9FFFF and 0xC0000-0xFFFFF
as WB and READ_MEM and WRITE_MEM
3. set fixed mtrrs for 0xA0000-0xBFFF to UC
4. disable SYSCFG_MSR_MtrrFixDramModEn
5. enable SYSCFG_MSR_MtrrFixDramEn
Ollie
> I enable that, but the result shows no change....
>
> YH
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