Simple bus space stubs require the VA-PA mapping
to be identical.
Approved by: hselasky, cognet (mentor)
Differential revision: https://reviews.freebsd.org/D4314
Remove old header from the include list and declare extern symbol
for delay() function.
Approved by: hselasky, cognet (mentor)
Differential revision: https://reviews.freebsd.org/D5012
like RPI-B and RPI-2.
Description of problem:
USB transfers can process data in their callbacks sometimes causing
unacceptable latency for other USB transfers. Separate BULK completion
callbacks from CONTROL, INTERRUPT and ISOCHRONOUS callbacks, and give
BULK completion callbacks lesser execution priority than the
others. This way USB audio won't be interfered by heavy USB ethernet
usage for example.
Further serve USB transfer completion in a round robin fashion,
instead of only serving the most CPU hungry. This has been done by
adding a third flag to USB transfer queue structure which keeps track
of looping callbacks. The "command" callback function then decides
what to do when looping.
MFC after: 2 weeks
Make the sysinit tool a build tool rather than building in with
/usr/bin/cc and running it from OBJDIR. (It will be moved to usr.bin
once a manpage is written and a few style cleanups are done.)
Split the makefile bits for Hans' kernel shim layer into their own
includable kshim.mk.
Move USB support into a .mk file so loaders can include it.
