Vramfs: filesystem driver to utilize extra RAM on VGA devices
H. Peter Anvin
hpa at zytor.com
Mon Jan 26 23:36:57 UTC 2009
Jonathan Campbell wrote:
> So far I've tested it against 188.8.131.52 and 2.6.28 on both x86 and
> x86_64 with reads, writes, directory creation, symlink creation, and
> mmap() and it seems to work fine.
> Just give it a range of memory on the bus, or the
> domain:bus:device:function numbers of a VGA PCI device, and it will
> mount the VGA video RAM and allow files to exist there.
> As a special hack: you can also specify the size of the active
> framebuffer console so that fbcon doesn't collide with this driver
> (unless you want to see what your files look like splattered across your
> screen, ha). The active VRAM area becomes a "sentinel" file named
> What do you guys think?
How is this different from the MTD driver we already have?
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