if there is no pckbc configured. Previously only the latter cuased the
USB keyboard to be used.
This should make it more likely to get the USB keyboard as the console
on legacy free machines using the GENERIC config file.
- distinguish paddr_t and bus_addr_t.
for xen, use bus_addr_t in the sense of machine address.
- move _X86_BUS_DMA_PRIVATE part of bus.h into bus_private.h.
- remove special handling of xen_shm. we can always grab
machine address from pte.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.
to select the maximum segment size for each bus_dmamap_load (up to the maxsegsz
supplied to bus_dmamap_create). dm_maxsegsz is reset to the value supplied to
bus_dmamap_create when the dmamap is unloaded.
So we better determine the bus number of this parent node.
Now, MPACPI on my Opteron board finally correctly determines its
PCI/AGP busses even without the help of the AMD64 Address Map
support implemented in my local tree.
which bustype should be attached with a specific call to config_found()
(from a "mainbus" or a bus bridge).
Do it for isa/eisa/mca and pci/agp for now. These buses all attach to
an mi interface attribute "isabus", "eisabus" etc., and the autoconf
framework now allows to specify an interface attribute on config_found()
and config_search(), which limits the search of matching config data
to these which attach to that specific attribute.
So we basically have to call config_found_ia(..., "foobus", ...) where
such a bus is attached.
As a consequence, where a "mainbus" or alike also attaches other
devices (eg CPUs) which do not attach to a specific attribute yet,
we need at least pass an attribute name (different from "foobus") so
that the foo bus is not found at these places. This made some minor
changes necessary which are not obviously related to the mentioned buses.
add the range to the map, and use it for _bus_dmamap_load_{buffer,mbuf}.
- _bus_dmamap_load_mbuf: in the case of M_EXT_PAGES, deal with vm_pages
directly rather than doing pmap_extract on given kva.
as a side effect, do a segment coalescing and boundary checks for mbufs.
ok'ed by Frank van der Linden and Jason Thorpe on tech-kern@.
