state into global and per-CPU scheduler state:
- Global state: sched_qs (run queues), sched_whichqs (bitmap
of non-empty run queues), sched_slpque (sleep queues).
NOTE: These may collectively move into a struct schedstate
at some point in the future.
- Per-CPU state, struct schedstate_percpu: spc_runtime
(time process on this CPU started running), spc_flags
(replaces struct proc's p_schedflags), and
spc_curpriority (usrpri of processes on this CPU).
- Every platform must now supply a struct cpu_info and
a curcpu() macro. Simplify existing cpu_info declarations
where appropriate.
- All references to per-CPU scheduler state now made through
curcpu(). NOTE: this will likely be adjusted in the future
after further changes to struct proc are made.
Tested on i386 and Alpha. Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.
change these from bp->b_un.b_addr to bp->b_data, as well. This also
allows us more flexibility to experiment with other data buffer types
hung off of struct buf.
it to determine the boot device: mvme68k, pc532, macppc, ofppc. Those
platforms should be changed to use device_register(). In the mean time,
those ports defined __BROKEN_DK_ESTABLISH.
contains the values __SIMPLELOCK_LOCKED and __SIMPLELOCK_UNLOCKED, which
replace the old SIMPLELOCK_LOCKED and SIMPLELOCK_UNLOCKED. These files
are also required to supply inline functions __cpu_simple_lock(),
__cpu_simple_lock_try(), and __cpu_simple_unlock() if locking is to be
supported on that platform (i.e. if MULTIPROCESSOR is defined in the
_KERNEL case). Change these functions to take an int * (&alp->lock_data)
rather than the struct simplelock * itself.
These changes make it possible for userland to use the locking primitives
by including <machine/lock.h>.
incorrectly added as a union member which overlaid the keyboard
state structure. Fixed by moving the callout structure into to
keyboard state structure.
rcons_ttyinit() was never added to the pmax rasterconsole stuff. Output
to the display using /dev/console has not been working since then. Adding
the call to rcons_ttyinit() makes this work again.
processor is unlikely able to boot the kernel.
- Correct comments about what mach_init() and cpu_startup() do.
- Relocate cn_tab = &promcd to make ROM console printf() work in the
earliest stage of boot.
variable and cpu_intr() body in machdep.c. Reorder and rename
model specific interrupt handler arguments. Fixup machine/intr.h and
machine/cpu.h appropriately.
* Remove the casts to vaddr_t from the round_page() and trunc_page() macros to
make them type-generic, which is necessary i.e. to operate on file offsets
without truncating them.
* In due course, cast pointer arguments to these macros to an appropriate
integral type (paddr_t, vaddr_t).
Originally done by Chuck Silvers, updated by myself.
cpu_fork() mistakenly created processes forked by proc0, including
kthreads, in splhigh condition, because [1] proc0's PCB was zero
cleared during initialization, and [2] value 0 in status register
field made processes to have splhigh condition when CPU tick was
assigned for them. This mostly doesn't matter as forked processes
dive immediately into user mode through proc_trampoline code path,
however, kthreads never do that and remain in splhigh.
Reported by Ethan Solomita <ethan@geocast.com>.
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.
The old timeout()/untimeout() API has been removed from the kernel.
so that the right entries get added to dev_name2blk[]. Needed for / on RAID.
(Whoops! I missed checking these in when adding the RAID_AUTOCONFIG stuff.)
This one is more in the spirit of incorrect version which was trying
to shorten the interrupt path. This probably isn't quite as fast as
using a switch() statement to dispatch the interrupts, but should be
a little faster than testing for each of the possible 6 interrupt
conditions.
than one interrupt bit is set (unless you do some fancy case values).
Check each interrupt bit individually and process the interrupt if set.
5000/200 doesn't hang shortly after booting now.
device. Works on a 3100 with both old and MI SCSI, on a 5000/25 built-in
IOASIC with both old and MI SCSI, on the 5000/25 PMAZ TC option card
with both old and MI SCSI, and with tftp boot on the 5000/25.
configured, but after all adapters have been configured. When multiple
adapters are present, only the last configured adapter could be matched
to the boot device slot. The adapter attach routines now check if that
adapter slot matches the boot device slot and saves the softc pointer
for that controller. Then when the disks are configured, dk_establish()
matches the appropriate controller. Also change the rz boot device test
to include a check for the adapter so that it works when booting from a
disk on adapters other than the first one.
disks are now usable with the MI SCSI sd devices.
The install mini-root adjustment and the default partitioning still needs
to be moved into readdisklabel().
interrupt handlers into intrtab[] array, rather than the idea of devices
in 'psuedo' TURBOchannel slots.
- Nuke symbols for psuedo TC slots.
- Abandon never/unlikely used intr_disestablish()s.
interrupt handlers into intrtab[] array, rather than the idea of devices
in 'psuedo' TURBOchannel slots.
- Nuke symbols for psuedo TC slots.
- Abandon never/unlikely used intr_disestablish()s.
consinit().
- Fix fbconnect() and relatives; 'struct fbinfo' is initialized only once,
making sure no extraneous console resolution message is emitted.
[nisimura-pmax-wscons] branch and suggestions from Toru Nisimura:
- Remove bogus tc_slot_info[] name for interrupt handling array
and replace with simplified struct intrhand intrtab[] array.
- Add intr_establish() and intr_disestablish() function pointers
to struct platform and initialise this in each model-specific
initialisation, and remove global tc_enable_interrupt function
pointer.
- Remove model-specific function declarations from ibus/ibusvar.h.
This is functionally identical to the current scheme, and doesn't
yet try to commonise interrupt establishment by bus type as the
[nisimura-pmax-wscons] branch does.
Also, move cpuspeed variable from autoconf.c to machdep.c
- Make local-only function and variables static.
- Move function prototypes and extern variable declarations to
header files.
- Delete unused variables.
There's still a handful of extern declaraions that should be fixed up.
set the console arg to 1. Noted by mhitch.
- In px_init(), don't compute pxi_fontscale if we're not the console,
since we don't have a font in the first place. This is a relic from
when the driver was converted to use 'struct wsdisplay_font'.
Should fix crashes if a px board is installed and isn't the console.
not the full boot device specification.
With this change, /etc/rc doesn't spew garbage when kvm_mkdb can't
find a kernel called "3/rz0/netbsd" or some such...
gmcgarry