> Now I am reading intel northbridge 440BX spec(look page 88:Memory > System Address Space) And i have a box with 440BX > I look /proc/iomem,i find that Framebuffer's size is 16MB(i open vesa > before kernel using vga=788) And the local Graphics Memory's size is > 64MB(through PMBASE Reg (24h) ;Dev 1(that's pci bridge)) to PMBASE > Reg(26h);Dev 1). the rest is Rendering Buffer,Depth Buffer,and Video > Capture Buffer. I want to ask : > the rest 48M buffer is really located in display card? > OS(like kernel) can manipulate framebuffer through mapping the buffer > to Virtual Memory. But Can OS manipulate the rest buffer directly,or > only Graphics card can do so?
I don't know the specifics of 440BX but it is possible to utilise the on card ram of your graphics card for eg a really fast swap file. So that makes me lean towards yes. Liam ---- it depends ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
