Mark Johnson writes: > > > Andrew Gallatin wrote: > > Masa Murayama writes: > > > Does anyone know whether large pages are available for solaris x86? > > > > > > masa > > > > On amd64, pagesize -a shows 4KB and 2MB pages are available. > > Hey, 2MB pages might solve some problems for me! :) > > > > How do I tell the kernel to use 2MB pages for things like kmem_alloc > > and ddi_umem_alloc? Or will I run into the same apparent > > fragmentation problem that I have with allocating DMAable memory? > > There isn't a way to allocate large pages from the > kernel today, only from user applications.
Large pages are physically contiguous, though, right? I guess I'll need to see if I have more luck allocating them than allocating contig memory via ddi_dma_mem_alloc() on x86. If so, I suppose I could allocate the memory in userspace, and then pin it via an ioctl. Drew _______________________________________________ driver-discuss mailing list driver-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/driver-discuss
