Further cleanup and simply the allocation and mapping of the kernel
pagetables and static data pages.
Removed the page directory page table as it is no longer necessary.
Changed the allocation of the proc0 L1 page table and L2 page table
that maps the page tables to map these pages into kernel virtual
address space.
Updated for pv_addr_t argument changes to pmap_bootstrap().
to obtains pv_addr_t structures for the proc0 L1 page table and the proc0
pagetable that maps page tables.
Use the virtual address from the pv_addr_t structure for the proc0 L1 page
table when calling pmap_bootstrap rather than relying on a special mapping
at PAGE_DIRS_BASE.
Modify ofw_construct_proc0_addrspace() for similar changes to
ofw_configmem().
Remove the kernel_pde page table in ofw_construct_proc0_addrspace() as it
it now longer needed.
for the page table to map kernel pagetables (kernel_ptpt). This means
that the pm_vptpt field is now valid for the kernel_pmap.
Use constants from vmparam.h in pmap_allocpagedir().
Moved from a two level 512/1024 entry setup mapping 32 (9/10/13) bits
respectively to a three level 1024/1024/1024 entry setup mapping 43
(10/10/10/13) bits. In 32-bit mode we waste about 1/12 pages mapping the high
11 bits. We also only manage 43 of the possible 44 bits of virtual address
space, wasting half of it. Oh well, maybe we'll do better next revision.
- clean up the Makefile a bit to be less solaris-centric :)
- add support for compat_sparc32 (32bit compat module for NetBSD/sparc). this
isn't yet fully tested but it mostly written and compiles if not totally
links yet.
Simplified serveral parts of the initarm() to make the code clearer and
modified parts of initarm() as part of an on-going effort to abstract
out part of initarm() on various machines.
place (some moved from param.h)
Define several constants such as page table addresses in terms of other
constants.
Increase some of the limits :
MAXTSIZ 8MB -> 16MB
DFLDSIZ 16MB -> 128MB
MAXDSIZ 256MB -> 512MB
DFLSSIZ 512KB -> 2MB
pk