Hello, i stumbled across the above mentioned define and related code in the XFree86 sources (lnx_video.c).
comparing X4.1.0 and X4.3.0 i found that the condtitnal coding of "if (base % size)" has vanished at some point in time and the handling is now hardcoded at this code location. to my best knowledge that coding is related to maybe the 3Dfx PCI memory regions layout with a single mixed framebuffer and register mapping. is any developer out there that is willing to describe the main points of that design in a few words. i am asking for that because i have had a case where the split code went into action despite any need and even the PCI range was a power of two. so in theory it should not happen. before popping up with any general solution i just wanted to make sure that i got the right idea of that code. to my understanding current mtrr implementations might be more flexible than it is assumed in the existing code. -Alex. _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
