Commit Graph

11 Commits

Author SHA1 Message Date
Jake Burkholder
f7e0360261 Forward declare struct trapframe. 2002-05-29 19:25:14 +00:00
Jake Burkholder
4d574756ac Convert the interrupt queue from an array to a linked list. Implement
intr_dequeue in asm so that it can easily be modified to do light weight
context switching.
2002-05-25 02:39:28 +00:00
Jake Burkholder
856316e9c6 Forward declare struct trapframe. 2002-05-20 16:12:35 +00:00
Thomas Moestl
9a60579c15 Avoid crashing in early boot when WITNESS is enabled by moving the
mtx_init() for intr_table_lock after the globaldata pointer
initialization.
2002-02-13 16:36:44 +00:00
Jake Burkholder
6deb695c1d Add initial smp support. This gets as far as allowing the secondary
cpu(s) into the kernel, and sync-ing them up to "kernel" mode so we can
send them ipis, which also work.

Thanks to John Baldwin for providing me with access to the hardware
that made this possible.

Parts obtained from:	bsd/os
2002-01-08 05:50:26 +00:00
Jake Burkholder
dc551940fc Make it clear that IH_SHIFT is expected to be that of a pointer.
Make intr_handlers an array of function pointers instead of
small structures.
2001-12-29 06:57:55 +00:00
Jake Burkholder
6c3dcb9735 Change the stray count in struct intr_vector to a vector number that can
be used to index tables of counters.
Remove intr_dispatch() inline, it is implemented directly in tl*_intr now.
Count stray interrupts in a table of counters like intrcnt.
Disable interrupts briefly when setting up the interrupt vector table.
We must disable interrupts completely, not just raise the pil.
Pass pointers to the intr_vector structures rather than a vector number
to sched_ithd and intr_stray.
2001-10-20 16:03:41 +00:00
Thomas Moestl
84bcb99195 Add inthand_add() and inthand_remove() for use by the MD bus code and
some glue code.
2001-10-12 16:06:41 +00:00
Jake Burkholder
e5e8823f37 Split the low level trap code into trap, interrupt and syscall, its
easier and hopefully this code is done changing radically.

Don't use the mmu tlb register to address the kernel page table, nor
the 8k pointer register.  The hardware will do some of the page table
lookup by storing the the base address in an internal register and
calculating the address of the tte in the table.  However it is limited
to a 1 meg tsb, which only maps 512 megs.  The kernel page table only
has one level, so its easy to just do it by hand, which has the advantage
of supporting abitrary amounts of kvm and only costs a few more instructions.

Increase kvm to 1 gig now that its easy to do so and so we don't waste
most of a 4 meg page.

Fix some traces.  Fix more proc locking.

Call tsb_stte_promote if we get a soft fault on a mapping in the upper
levels of the tsb.  If there is an invalid or unreferenced mapping
in the primary tsb, it will be replaced.

Immediately fail for faults occuring in {f,s}uswintr.
2001-09-30 19:41:20 +00:00
David E. O'Brien
bcc9d95fe0 style(9) the structure definitions. 2001-09-05 05:18:35 +00:00
Jake Burkholder
228fa56391 Add early code to support interrupts. 2001-08-10 04:48:48 +00:00