Gerd Knorr wrote: >On Sun, Feb 10, 2002 at 04:54:48AM -0800, Mark McClelland wrote: > >>BTW, is there any chance for vmalloc() and pals to be moved to >>videodev.c, or something higher-up? >> > >What do you mean exactly? bttv's memory management code, which has >been copied to various places, and which is now broken in 2.5.x due >to virt_to_bus() being gone finally? >
Sorry, I meant to type rvmalloc(). Many drivers (eg. USB webcam drivers), don't need virt_to_bus(). They only need a way to allocate reserved pages that they can safely do remap_page_range() on, for mmap(). >Some of this is work-in-progress. I'm talking to Dave to put some >helper functions to handle DMA to vmalloced memory blocks to some >sensible place within the kernel. If someone wants to have a look >(not final yet): http://bytesex.org/patches/15_pci-2.4.18-pre8.diff > Thanks, that's exactly what I was looking for. pci_vmalloc_to_page() should satisfy all of the USB drivers, if they override vma->vm_ops->nopage(). -- Mark McClelland [EMAIL PROTECTED] _______________________________________________ Video4linux-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/video4linux-list
