only 64 out of 128 MB video RAM memory used - why?

[Tomasz Chmielewski]

I have a Radeon 9200 PCI video card.

I noticed only 64 MB out of 128 MB of video RAM memory is used:

(II) RADEON(0): Generation 2 PCI interface, using max accessible memory
(II) RADEON(0): Detected total video RAM=131072K, accessible=65536K (PCI BAR=65536K)
(--) RADEON(0): Mapped VideoRAM: 65536 kByte (64 bit DDR SDRAM)

Why is it so?


The system has also AGP card with 256 MB memory, and full 256 MB is used there.


02:05.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (rev 01) (prog-if 00 [VGA controller])
        Subsystem: Device 0001:0001
        Flags: bus master, medium devsel, latency 32, IRQ 17
        Memory at e4000000 (32-bit, prefetchable) [size=64M]
        I/O ports at b800 [size=256]
        Memory at ffde0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at dff00000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Kernel modules: radeonfb


-- 
Tomasz Chmielewski
http://wpkg.org