copyin() or copyout().
uvm_useracc() tells us whether the mapping permissions allow access to
the desired part of an address space, and many callers assume that
this is the same as knowing whether an attempt to access that part of
the address space will succeed. however, access to user space can
fail for reasons other than insufficient permission, most notably that
paging in any non-resident data can fail due to i/o errors. most of
the callers of uvm_useracc() make the above incorrect assumption. the
rest are all misguided optimizations, which optimize for the case
where an operation will fail. we'd rather optimize for operations
succeeding, in which case we should just attempt the access and handle
failures due to insufficient permissions the same way we handle i/o
errors. since there appear to be no good uses of uvm_useracc(), we'll
just remove it.
This only turns off the display in the LCD controller.
TODO: Need to add a platform specific way to turn the screen on and
off as well (e.g. on Jornada 680 this is bit 0 in hd64461 GPIO port B).
possible to do experiments with new drivers without hitting this
limit. Of this delta we already consume two slots on Jornada 680 for
IRQ0 (j6x0pwr) and IRQ3 (j6x0tp).
This driver ignores i/o window handle, but most 'at pcmcia'
attachments init their sc_io_window to -1 and then check at detach
time if it was changed from the "bad" value. Keep them happy, so that
they can correctly clean up when card is detached.
provides RTFS documentation on how things are wired in Jornada.
Listens to "switch off" interrupt generated when On/Off button is
pressed, or the lid is closed.
Polls the status of main and backup batteries and warns if main
battery is low.
which is automatically included during kernel config, and add comments
to individual machine-dependant majors.* files to assign new MI majors
in MI file.
Range 0-191 is reserved for machine-specific assignments, range
192+ are MI assignments.
Follows recent discussion on tech-kern@
enabled on amd64). Add a dmat64 field to various PCI attach structures,
and pass it down where needed. Implement a simple new function called
pci_dma64_available(pa) to test if 64bit DMA addresses may be used.
This returns 1 iff _PCI_HAVE_DMA64 is defined in <machine/pci_machdep.h>,
and there is more than 4G of memory.
sections into it. This also ensures that sections, not mentioned in
the linker script (currenty - link_set_*), end up in the correct
place. Otherwise kernel panics very early, trying to access link_set
info.
cd ${KERNSRCDIR}/${KERNARCHDIR}/compile && ${PRINTOBJDIR}
This is far simpler than the previous system, and more robust with
objdirs built via BSDOBJDIR.
The previous method of finding KERNOBJDIR when using BSDOBJDIR by
referencing _SRC_TOP_OBJ_ from another directory was extremely
fragile due to the depth first tree walk by <bsd.subdir.mk>, and
the caching of _SRC_TOP_OBJ_ (with MAKEOVERRIDES) which would be
empty on the *first* pass to create fresh objdirs.
This change requires adding sys/arch/*/compile/Makefile to create
the objdir in that directory, and descending into arch/*/compile
from arch/*/Makefile. Remove the now-unnecessary .keep_me files
whilst here.
Per lengthy discussion with Andrew Brown.
one we are currently scanning. This is what Hitachi's sample WinCE
code does. Thanks to YAEGASHI Takeshi for pointing this out!
This makes same row chords work properly, most importantly
Ctrl-@, Ctrl-W, Ctrl-S, Ctrl-Alt-F1 (ctrl row), Ctrl-Alt-F3 (alt row).
