freebsd-skq/sys/ia64
alc e05c27b796 Make several changes to pmap_enter_quick_locked():
1. Make the caller responsible for performing pmap_install().  This reduces
the number of times that pmap_install() is performed by
pmap_enter_object() from twice per page to twice overall.

2. Don't block if pmap_find_pte() is unable to allocate a PTE.  If it did
block, then it might wind up mapping a cache page.  Specifically, if
pmap_enter_quick_locked() slept when called from pmap_enter_object(), the
page daemon could change an active or inactive page into a cache page just
before it was to be mapped.

3. Bail out of pmap_enter_quick_locked() if pv entries aren't plentiful.
In other words, don't force the allocation of a pv entry if they aren't
readily available.

Reviewed by: marcel@
2006-06-27 05:05:05 +00:00
..
acpica Canonize the include of acpi.h. 2005-09-11 18:39:03 +00:00
compile
conf Backed out the change by request from rwatson. 2006-06-26 22:03:22 +00:00
disasm Update to SDM 2.2: 2006-06-24 19:21:11 +00:00
ia32 Simplify system time accounting for profiling. 2006-02-08 08:09:17 +00:00
ia64 Make several changes to pmap_enter_quick_locked(): 2006-06-27 05:05:05 +00:00
include Fix braino in previous commit: Don't redefine OID_AUTO to something 2006-05-11 22:49:31 +00:00
isa - Move bus dependent defines to {isa,cbus}_dmareg.h. 2005-05-14 10:14:56 +00:00
pci