RE: Running with VGA

[YhLu]

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.

I enable that, but the result shows no change....

YH

Running with VGA

[Li-Ta Lo]

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