On 12/19/06, Thomas Hellström <[EMAIL PROTECTED]> wrote: > Dave Airlie wrote: > > >>Does anbody know why drm is using vmalloc_32 instead of vmalloc when > >>allocating SHM maps? > > > >I may be wrong but maybe for mixed 64/32-bit kernel/userspace systems, did > >it ever use vmalloc? > > > Don't know really, but since drm AFAICT never cares about the physical > address of the > underlying pages, vmalloc should probably do just fine, or even better > vmalloc_user on newer kernels, > => we could skip the memset() i just added.
AFAIK, vmalloc_32 put the memory in the lower 4gb, so it's accessible by peripherals that only support 32-bit DMA. If that's not an issue, there's no need to use the _32 version. Kristian ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
