Jon Smirl writes: > drmMap never cares about the handle since drmMap turns into mmap and > mmap doesn't know about DRM maps.
Huh? drm_mmap certainly does know about DRM maps. The trouble with using the offset returned by drmGetMap is that if your program is a 32-bit program running on a 64-bit kernel, and the kernel map->offset value for the map you want is > 4G, then your 32-bit program will only see the bottom 32 bits of the offset value, and you end up with no way for your 32-bit program to mmap the map. That's why I am suggesting that the kernel should create a 32-bit token for each map and return it in the handle field, and the program should use that as the mmap offset when mmapping the map. Paul. ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
