On Mon, Jan 28, 2002 at 10:05:31PM +0000, Alan Cox wrote:
> > For framebuffers addresses, there is no page structure, and then the
> > page reference count updates read/write to random memory.
>
> If it is a physical pci bus object why do we need to refcount it, surely
> "no page" is ok. Its just up to the driver not to do anything stupid and
> the core code to honour the pci/pci transfer quirks (or when faced with
> a hard one just say "no")
So, is there a clear interface by which access_process_vm ought to be
able to get at the mapped framebuffer, or should get_user_pages just
punt off it?
-- Daniel Jacobowitz Carnegie Mellon University MontaVista Software Debian GNU/Linux Developer - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jan 31 2002 - 21:00:54 EST