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IPL_NONE; fixes a false splassert warning on boot.
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appropriate types. No functional change.
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boards such as mvme1[89]7 where spl changes can be atomic.
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been years since it has last been used for that purpose, so name it the
initialization/startup stack.
While there, do not store the initialization stack in cpu_info, and have
secondary_pre_main() return its value so that the bootstrap code does not
need to fetch it from cpu_info.
This might be reconsidered when the startup stacks will be freed after they
are not used anymore, but there are more things to do first.
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a function, so that it does not get reloaded from cr17 every time.
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since the corresponding interrupt source is enabled on the primary processor
only.
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a single ci_flags bitfield.
Also, set_cpu_number() will no longer set CIF_PRIMARY on the primary processor,
it's up to the initialization code to do this.
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drift in MP kernels.
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no functional change.
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gets handled like a real hardware interrupt (which it is supposed to mimic
anyway).
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one, so that we can have maskable and unmaskable IPIs. Make the clock ipis
maskable, and masked at IPL_CLOCK and above. This allows us to get rid
of the retrig hack in setipl().
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- only process the pending ipis once per external interrupt, at the beginning.
- use the ipl we were at when the interrupt occured, not the ipl at which
we enabled interrupts again, in order to decide whether we can run hardclock
or statclock.
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stack a startup stack.
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ok miod
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and put the process it was running back on the run queue (unless this was
the idle proc).
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before they are started (and not skipping gaps for machine setups with
holes in cpu slots). Since we start secondary cpus very late in the boot
process, and sched_init_cpu() has to be invoked before proc0 execve's init,
I don't think there is a better way to do this.
This lets MVME188 systems with more than one processor boot multiuser.
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output, and nothing else.
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rather the expecting it to do this for us.
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- Move the functionality of choosing a process from cpu_switch into
a much simpler function: cpu_switchto. Instead of having the locore
code walk the run queues, let the MI code choose the process we
want to run and only implement the context switching itself in MD
code.
- Let MD context switching run without worrying about spls or locks.
- Instead of having the idle loop implemented with special contexts
in MD code, implement one idle proc for each cpu. make the idle
loop MI with MD hooks.
- Change the proc lists from the old style vax queues to TAILQs.
- Change the sleep queue from vax queues to TAILQs. This makes
wakeup() go from O(n^2) to O(n)
there will be some MD fallout, but it will be fixed shortly.
There's also a few cleanups to be done after this.
deraadt@, kettenis@ ok
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previously applied to other archs deleting a memset() this time. e.g.
- if ((mapstore = malloc(mapsize, M_DEVBUF,
- (flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK)) == NULL)
+ if ((mapstore = malloc(mapsize, M_DEVBUF, (flags & BUS_DMA_NOWAIT) ?
+ (M_NOWAIT | M_ZERO) : (M_WAITOK | M_ZERO))) == NULL)
return (ENOMEM);
- memset(mapstore, 0, mapsize);
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In ip_esp.c all allocated memory is now zero'd in the
"malloc(sizeof(*tc) + alen ..." case. The +alen memory was not
initialized by the bzero() call. Noticed by chl@.
"Looks good" art@ "seems ok" chl@
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ok art@
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kernel builds locally this doesnt change much but over NFS this
cuts about 12% of the build time on my setup (i386).
OK miod@, deraadt@.
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cpu_disklabel can go away, since nothing anymore needs to use it; ok miod
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to support hotplug media on most architectures. disklabel setup and
verification done using new helper functions. Disklabels must *always*
have a correct checksum now. Same code paths are used to learn on-disk
location disklabels, to avoid new errors sneaking in. Tested on almost all
cases, testing help from todd, kettenis, krw, otto, dlg, robert, gwk, drahn
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pulled in.
look at how doing it in one architecture gets that code copied to the
derivative architectures... amazing..
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correct and unify; ok thib miod
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routines (alpha, vax) prove to be not worth keeping. Move
bounds_check_with_label() into the MI world. Eliminate unreliable and
almost certainly useless checks for overwriting a disklabel.
After discussion with deraadt@
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other disksubr functions without changing any of the effect.
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implimentations were simply either missing code, or spacing and such.
setdisklabel() can become MI now.
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ok deraadt@
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fields which contain p_sizeh and such fields. handle both kinds correctly,
we hope. tested on mvme68k
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size which is the REAL DISK SIZE. always. if a driver fails to set
this right, please fix it. agreed with otto and krw
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vax and alpha.
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there.
'so go to it!' deraadt@
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type of all variables to daddr64_t. this includes the APIs for XXsize()
and XXdump(), all range checks inside bio drivers, internal variables
for disklabel handling, and even uvm's swap offsets. re-read numerous
times by otto, miod, krw, thib to look for errors
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accuracy so that the variious disksubr.c's can be compared easier.
setdisklabel() starts taking an int for openmask.
ok krw, and read by quite a few other people
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for overwriting the disklabel. Reorder some checks so all copies of
bounds_check_with_label do the checks in the same order. Order picked
by using the currently most popular one. Should be no functional
change.
"If it's boring, commit it" deraadt@
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to size. tested on almost all machines, double checked by miod and krw
next comes the type handling surrounding these values
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