space is advertised to UVM by making virtual_avail and virtual_end
first-class exported variables by UVM. Machine-dependent code is
responsible for initializing them before main() is called. Anything
that steals KVA must adjust these variables accordingly.
This reduces the number of instances of this info from 3 to 1, and
simplifies the pmap(9) interface by removing the pmap_virtual_space()
function call, and removing two arguments from pmap_steal_memory().
This also eliminates some kludges such as having to burn kernel_map
entries on space used by the kernel and stolen KVA.
This also eliminates use of VM_{MIN,MAX}_KERNEL_ADDRESS from MI code,
this giving MD code greater flexibility over the bounds of the managed
kernel virtual address space if a given port's specific platforms can
vary in this regard (this is especially true of the evb* ports).
breakpoint address before it's used. Currently a no-op on all but sh5.
This is useful on sh5, for example, to mask off the instruction
type encoding in the bottom two address bits, and makes it possible
to do "db> break $rXX" instead of manually munging the address.
/dev/power.
XXX - due to the way interrupt handling is structured we have no easy
way to defer clearing the button interrupt until the sysmon callback
has happened and the event is dispatched. We clear it imediately on
return from the interrupt handler. This means we get an interrupt storm
until the button is released, and then start to handle it.
This needs to be fixed! (But with the default application for the power
button does not make a user visible difference.)
- handle devices which has no OBP node.
- move PCI latency-timer initialization from pci_intr_map to
pci_enumerate_bus.
- make PCI bus free space extents for cardbus devices.
- fix PCI config space map size.
- some code integrations.
by Andrey Petrov and Jason Thorpje (AFAIK).
This is a hack that covers some symptoms while we have no idea where
the real problem is. Anyway, since this avoids random data corruption
we better be safe and have this in-tree until the problem is solved the
right way.
