On Mon, 27 May 2002 15:01:47 -0600 Jens Owen <[EMAIL PROTECTED]> wrote:
> 1) We loosen security requirements for 3D drivers. This will allow > far less data copying, memory mapping/unmapping and system calls. > Many modern graphics chips can have their data managed completely in a > user space AGP ring buffer removing the need to call the kernel module > at all. The primary limitation that has kept us from persuing these > implementations so far have been security holes with AGP blits. I dont pretend to understand everything here, but wouldnt it be more secure, and STILL blindingly fast, to set up the data in userspace, and trigger the AGP DMA / blits from kernel space with some bounds checking? surely 1 system call per DMA isnt that bad? _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
