On Fri, 28 Dec 2007, Petr Stehlik wrote:
> Petr Stehlik p��e v P� 28. 12. 2007 v 10:42 +0100:
> > 128 MB: screen_base 00b00000
> > 192 MB: screen_base 01700000
> > 256 MB: screen_base 01600000
> >
> > So the question is how the atafb decides where to put the videoram and
> > why is it related to FastRAM size...
>
> I have just 2.6.22 source and there the screen_base is set as follows:
>
> screen_base = atari_stram_alloc(mem_req, "atafb");
>
> so if this is in 2.6.18-m68k then it looks like a bug in the
> atari_stram_alloc() to me.
atari_stram_alloc() allocates GFP_DMA'ble memory using __get_dma_pages(), as
atafb is initialized after memory initialization.
If Fast RAM doesn't support DMA, it should be added as non-DMA'ble
memory.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [EMAIL PROTECTED]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
