PJS> according to /usr/src/linux/Documentation/mtrr.txt... PJS> A patch is being written for XFree86 which will make this automatic: PJS> in other words the X server will manipulate /proc/mtrr using the PJS> ioctl() interface, so users won't have to do anything.
PJS> does anybody know if this has been done yet? it looks like my PJS> mtrr was set: PJS> reg00: base=0x00000000 ( 0MB), size= 128MB: write-back, count=1 PJS> reg01: base=0x08000000 ( 128MB), size= 64MB: write-back, count=1 PJS> reg02: base=0x0c000000 ( 192MB), size= 32MB: write-back, count=1 PJS> reg03: base=0xe8000000 (3712MB), size= 64MB: write-combining, count=2 PJS> but i haven't echo'd anything to /proc/mtrr. PJS> has this patch already been integrated into X 4.0? I think yes. At least on all video cards I've tried MTRR was enabled by XFree86 4.xx automatically. -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | Ilya Martynov (http://martynov.org/) | | GnuPG 1024D/323BDEE6 D7F7 561E 4C1D 8A15 8E80 E4AE BE1A 53EB 323B DEE6 | | AGAVA Software Company (http://www.agava.com/) | -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-