mycroft e84fe91c51 Take advantage of the new `access_type' for pmap_enter(), and always do R/M ... emulation of managed pages. This required the following `interesting' changes: * File system buffers must be entered with an access type of VM_PROT_READ|VM_PROT_WRITE, so that the pages will be accessible immediately. Otherwise we would have to teach pagemove() to update the R/M information. Since they're never eligible for paging, the latter is overkill. * We must insure that pages allocated before the pmap is completely set up (that is, pages allocated early by the VM system) are not eligible for R/M emulation, since the memory needed for this isn't available. We do this by allocating the pmap's internal memory with uvm_pageboot_alloc(). This also fixes an absolutely horrible hack where the pmap only worked because page 0 happened to be mapped. to be mapped. Also: * Push the wired page counting into the p->v list maintenance functions. This avoids code duplication, and fixes some cases where we were confused about which pages to do it with. * Fix lots of problems associated with pmap_nightmare() (and rename it to pmap_vac_me_harder()). * Since the early pages are no longer considered `managed', just make pmap_*_pv() panic if !pmap_initialized.		1999-03-26 22:00:24 +00:00
..
arm32	Take advantage of the new `access_type' for pmap_enter(), and always do R/M	1999-03-26 22:00:24 +00:00
compile
conf	Sync some options from GENERIC	1999-03-26 02:48:18 +00:00
dev	completely remove Mach VM support. all that is left is the all the	1999-03-24 05:50:49 +00:00
doc	Sync with reality.	1999-01-01 12:13:49 +00:00
footbridge	completely remove Mach VM support. all that is left is the all the	1999-03-24 05:50:49 +00:00
fpe-arm
include	Add a macro to check for sufficient pointer alignment in bus.h context,	1999-03-23 21:29:03 +00:00
iomd	completely remove Mach VM support. all that is left is the all the	1999-03-24 05:50:49 +00:00
isa	completely remove Mach VM support. all that is left is the all the	1999-03-24 05:50:49 +00:00
mainbus	Make cpu_model big enough to hold the DNARD cpu's identification, and a bit	1999-02-26 12:05:49 +00:00
ofw	Take advantage of the new `access_type' for pmap_enter(), and always do R/M	1999-03-26 22:00:24 +00:00
pci	Moved to arch/arm32/include/pci_machdep.h,v	1999-03-19 03:34:22 +00:00
podulebus	Use ETHER_*_LEN constants from <net/if_ether.h> instead of defining them	1999-03-25 23:11:51 +00:00
rc7500	Junk a load of register keywords.	1999-03-16 10:55:42 +00:00
riscpc	Update for name change of pv_addr_t structure members.	1999-01-03 02:23:27 +00:00
shark	pull isa_machdep.h in from machine/ instead of from $(MACHINE)/isa/	1999-03-19 05:13:16 +00:00
vidc	completely remove Mach VM support. all that is left is the all the	1999-03-24 05:50:49 +00:00
Makefile