Dear X friends: I intend to enable AGP and map it to the virtual memory such that to write HW commands. I reference the enable sequence wrote in R128_dri.c, which looks like 1. drmAgpAcquire (make sure AGP is available) 2. drmAgpEnable (give the mode,like 2x, 4x) 3. drmAgpAlloc 4. drmAgpBind 5. drmAddMap 6. drmMap In the final step, drmMap, the last parameter we pass to Xserver is drmAddressPtr. Is this variable the virtual address OS map to the AGP physical address? If it is, each time I try to write some value to this pointer, the Xserver will report signal 11, and shutdown. Is there some parameters I need to set such that I can get a correct virtual address to write or I should use different way to get mapping Virtual address? Thanks a lot! Pierre _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
