On Sat, Sep 17, 2011 at 08:19:47PM +0200, Grégoire Sutre wrote: > On 09/01/2011 05:10 PM, Christos Zoulas wrote: > >Module Name: src > >Committed By: christos > >Date: Thu Sep 1 15:10:32 UTC 2011 > > > >Modified Files: > > src/sys/arch/i386/eisa: eisa_machdep.c > > src/sys/arch/i386/mca: mca_machdep.c > > src/sys/arch/x86/include: bus_private.h > > src/sys/arch/x86/isa: isa_machdep.c > > src/sys/arch/x86/pci: pci_machdep.c > > src/sys/arch/x86/x86: bus_dma.c > > src/sys/arch/xen/xen: isa_machdep.c xpci_xenbus.c > > src/sys/sys: bus.h > > > >Log Message: > >Add bus_dma overrides. From dyoung > > Should NULL be allowed as first argument of bus_dma_tag_create?
It should not be. > I would prefer for NULL to be allowed to make my life easier in > the drmgem port from OpenBSD. But maybe requiring non-NULL would > make more sense if this shall be used from MI device drivers only? I was working on this a week or two ago, I will send you a patch. I found that you can simplify the drmgem code a lot if you use bus_dma_tag_create() to refine an existing tag instead of trying to create one from scratch. I think that you can probably make the code MI, too. Dave -- David Young OJC Technologies dyo...@ojctech.com Urbana, IL * (217) 344-0444 x24
