freebsd-dev/sys/sparc64
Alan Cox 6031c68de4 The page flag PGA_WRITEABLE is set and cleared exclusively by the pmap
layer, but it is read directly by the MI VM layer.  This change introduces
pmap_page_is_write_mapped() in order to completely encapsulate all direct
access to PGA_WRITEABLE in the pmap layer.

Aesthetics aside, I am making this change because amd64 will likely begin
using an alternative method to track write mappings, and having
pmap_page_is_write_mapped() in place allows me to make such a change
without further modification to the MI VM layer.

As an added bonus, tidy up some nearby comments concerning page flags.

Reviewed by:	kib
MFC after:	6 weeks
2012-06-16 18:56:19 +00:00
..
central s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
compile
conf Merge from x86: r232521 2012-05-25 14:52:05 +00:00
ebus s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
fhc s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
include The page flag PGA_WRITEABLE is set and cleared exclusively by the pmap 2012-06-16 18:56:19 +00:00
isa Retire isa_setup_intr() and isa_teardown_intr() and use the generic bus 2011-05-06 13:48:53 +00:00
pci - Remove erroneous trailing semicolon. [1] 2012-03-30 15:08:09 +00:00
sbus s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
sparc64 Replace all uses of the vm page queues lock by a r/w lock that is private 2012-05-29 01:52:38 +00:00