longer need to lock the kernel pmap in pmap_kenter_pa() and pmap_kremove().
- Since locking the kernel pmap in interrupt context is no longer required,
don't go to splimp() when locking the kernel pmap.
- Implement a new pmap_remove() function, not yet enabled by default. It
is structured like pmap_protect, and should be *much* faster. This was
actually written quite some time ago, but never committed because it
didn't work properly. Given the recent bugfix to pmap_protect(), "duh,
of course it didn't work properly before...". It seems to work fine now
(have done several builds and run the UVM regression tests using the new
code), but it is currently run-time optional so that some performance
measurements can be easily run against the old and new code.
* We could overrun the eva by as much as L1SEG_SIZE-PAGE_SIZE.
* sva was advanced *twice* for each valid l3 or l2 page, causing it to get out
of sync with the PTE pointers.
remove GENERIC.v6 file (as it is part of GENERIC now).
"faith" interface is commented out by default as it is not really for
general use.
IPsec items are commented out as well, though we can enable "options IPSEC"
without export-related issue ("options IPSEC" will enable authentication
portion only). We may need to think about it again.
if you have problem compiling with INET6 on archs I do not have access to,
please contact me.
XXX what to do with arch/arm32/SHARK{,.v6}?
>split the "asc" and "tcds" searching into two separate sections and
>keep a "tcdsdev" of the booted tcds device. make sure that the "asc"
>is the child of the tcds. this fixes boot device detection on dec
>5000/400 (prolly 400-900) machines in the presense of a tcds option
>card, which would use the right tcds chip & disk scsiid of the last
>attached tcds -- which meant it would choose the wrong disk, or not
>find the boot device at all if the corresponding scsiid was unused in
>the last attached disk.
>
>XXX: this may need to be copied to dec_3000_300.c but i have no idea
>as i can not test this hardware at all...
>
>fixes PR#8771 by myself.
keep a "tcdsdev" of the booted tcds device. make sure that the "asc"
is the child of the tcds. this fixes boot device detection on dec
5000/400 (prolly 400-900) machines in the presense of a tcds option
card, which would use the right tcds chip & disk scsiid of the last
attached tcds -- which meant it would choose the wrong disk, or not
find the boot device at all if the corresponding scsiid was unused in
the last attached disk.
XXX: this may need to be copied to dec_3000_300.c but i have no idea
as i can not test this hardware at all...
fixes PR#8771 by myself.
- Fix a bug where IPL wasn't being lowered to process SIRs, which
effectively caused them to be processed at splserial(), and loop
over the ssir, like we do for astpending.
- Optimize the flow of exception_return().
the page attributes in pmap_enter().
- It's no longer necessary (and hasn't been for a while in this pmap) to
go to splimp() to use the physical->virtual table, so remove all such
uses.
the freebsd-alpha mailing list which basically boiled down to increasing
stack depth due to lowering the IPL before checking for an AST.
This changes AST processing to do basically what the i386 port does (as
described by Charles Hannum):
check_ast:
if (astpending) {
lower IPL
process AST
raise IPL
goto check_ast
}
