On 5/23/06, Jeff Garzik <[email protected]> wrote:
OTOH, I think a perfect video driver would be in kernel space, and do
* delivery of GPU commands from userspace to hardware, hopefully via
zero-copy DMA. For older cards without a true instruction set, "GPU
commands" simply means userspace prepares hardware register
read/write/test commands, and blasts the sequence to hardware at the
appropriate moment (a la S3 Savage's BCI).
You have to security check those commands in the kernel driver to keep
normal users from using the GPU to do nasty things. Users can only
play with memory that they own and no ones else's.
--
Jon Smirl
[email protected]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
