4 commits

Author	SHA1	Message	Date
Peter Grehan	4daf20b2f1	Increase kernel VA from 256Mb to 512Mb by shifting the segment used ... for user copyinout down to 12, and keeping segments 13/14 for kernel VA. It would be nice to have more available, but segments lower than this are reserved for either memory or 1:1 mapped device i/o, and seg 15 is OpenFirmware ROM. Also, the effort to keep OpenFirmware available for callbacks limits the use of VA-mapped segments. Fortunately UMA_MD_SMALL_ALLOC takes away a lot of VM pressure. Obtained from: NetBSD	2004-03-02 06:49:21 +00:00
Peter Grehan	7c2779715c	Cleaned up param.h: ... - culled long-dead #define's - segment register defs moved to sr.h - NPMAPS moved to pmap.h - KERNBASE moved to vmparam.h - removed include of <machine/cpu.h> and fixed src files that relied on this. Modifying segment register code no longer causes gcc rebuilds :-)	2004-02-11 07:27:34 +00:00
David E. O'Brien	334bb4125f	style(9)	2002-02-18 06:24:55 +00:00
Benno Rice	5244eac968	Complete rework of the PowerPC pmap and a number of other bits in the early ... boot sequence. The new pmap.c is based on NetBSD's newer pmap.c (for the mpc6xx processors) which is 70% faster than the older code that the original pmap.c was based on. It has also been based on the framework established by jake's initial sparc64 pmap.c. There is no change to how far the kernel gets (it makes it to the mountroot prompt in psim) but the new pmap code is a lot cleaner. Obtained from: NetBSD (pmap code)	2002-02-14 01:39:11 +00:00