From af9e6a3fd2e2eca34326dc1599ab43291d45079a Mon Sep 17 00:00:00 2001
From: Minifree Ltd
phcoder: TOM - BSM
phcoder: check what vendor BIOS offers as options
- fchmmr: I thought it could do 64MB usually
+ vimuser: I thought it could do 64MB usually
phcoder: not accorging to doc.
phcoder: see mobile-945-express-chipset-datasheet page 93
phcoder: see also src/northbridge/intel/i945/{early_init,northbridge,gma}.c
- fchmmr: "011 = DVMT (UMA) mode, 8 MB of memory pre-allocated for
- fchmmr: frame buffer."
- fchmmr: "Others - reserved"
+ vimuser: "011 = DVMT (UMA) mode, 8 MB of memory pre-allocated for
+ vimuser: frame buffer."
+ vimuser: "Others - reserved"
phcoder: the easiest way is a loop at this position which tries different values and reads (and prints) BSM with them
- stefanct: fchmmr: they suggest that you change the value and look how BSM reacts to that
+ stefanct: vimuser: they suggest that you change the value and look how BSM reacts to that
stefanct: as they pointed out earlier vram size = TOM - BSM
stefanct: different values of GMS
stefanct: phcoder: hm... this could be a hint. look at the text description of TOLUD at page 103
@@ -124,7 +124,7 @@
phcoder: stefanct: I have a guess which value make is 64 but I will not tell to avoid skewing test results
stefanct: phcoder: sure... i assumed you were not sure if it supports it at all. testing it properly is of course a good idea :)
stefanct: test the various possible (but reserved) values of GMS and see what the resulting VRAM size is
- fchmmr: so, TOM - BSM
+ vimuser: so, TOM - BSM
Back to top of page. @@ -550,7 +550,7 @@ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
- Copyright © 2014, 2015 Francis Rowe <info@gluglug.org.uk>
+ Copyright © 2014, 2015 Minifree Ltd <info@minifree.org>
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation;
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