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History log of /src/sys/arch/powerpc/ibm4xx/ibm40x_machdep.c
RevisionDateAuthorComments
 1.6  18-Jun-2011  matt Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.
 1.5  11-Dec-2005  christos branches: 1.5.110;
merge ktrace-lwp.
 1.4  18-Jan-2005  shige Arrange some machine-dependent code.
- ibm40x_machdep.c: ibm40x specific
. ibm40x_memsize_init
. mem_regions
. other functions are moved to machdep.c or ibm4xx_machdep.c.
- ibm4xx_machdep.c: ibm4xx specific
. ibm4xx_init (moved from ibm40x_machdep.c)
. ibm4xx_install_extint (moved from ibm40x_machdep.c)
. ibm4xx_cpu_startup (moved from ibm40x_machdep.c:ibm4xx_startup)
. ibm4xx_dumpsys
 1.3  17-Jan-2005  shige Remove openbios dependent code from ibm4xx/ibm40x dependent module.
 1.2  30-Dec-2003  pk branches: 1.2.4; 1.2.8; 1.2.10;
Replace the traditional buffer memory management -- based on fixed per buffer
virtual memory reservation and a private pool of memory pages -- by a scheme
based on memory pools.

This allows better utilization of memory because buffers can now be allocated
with a granularity finer than the system's native page size (useful for
filesystems with e.g. 1k or 2k fragment sizes). It also avoids fragmentation
of virtual to physical memory mappings (due to the former fixed virtual
address reservation) resulting in better utilization of MMU resources on some
platforms. Finally, the scheme is more flexible by allowing run-time decisions
on the amount of memory to be used for buffers.

On the other hand, the effectiveness of the LRU queue for buffer recycling
may be somewhat reduced compared to the traditional method since, due to the
nature of the pool based memory allocation, the actual least recently used
buffer may release its memory to a pool different from the one needed by a
newly allocated buffer. However, this effect will kick in only if the
system is under memory pressure.
 1.1  23-Sep-2003  shige Add IBM40x specific machdep functions.
 1.2.10.1  29-Apr-2005  kent sync with -current
 1.2.8.1  15-Sep-2005  riz Pull up following revision(s) (requested by shige in ticket #5820):
distrib/evbppc/md-kernel/Makefile 1.3 via patch
etc/etc.evbppc/Makefile.inc 1.3 via patch
sys/arch/evbppc/conf/files.obs405 1.5-1.8 via patch
sys/arch/evbppc/conf/OPENBLOCKS266 1.22,1.25 via patch
sys/arch/evbppc/include/obs266.h 1.1 (new)
sys/arch/evbppc/include/obs405.h 1.1-1.5 (new)
sys/arch/evbppc/include/rbus_machdep.h 1.1 (new)
sys/arch/evbppc/obs405/consinit.c 1.2-1.4
sys/arch/evbppc/obs405/dev/x1226.c deleted
sys/arch/evbppc/obs405/dev/x1226reg.h deleted
sys/arch/evbppc/obs405/machdep.c deleted
sys/arch/evbppc/obs405/obs266_autoconf.c 1.1 (new)
sys/arch/evbppc/obs405/obs266_machdep.c 1.1 (new, plus patch)
sys/arch/evbppc/obs405/obs405_autoconf.c 1.1 (new, plus patch)
sys/arch/evbppc/obs405/obs405_machdep.c 1.1 (new)
sys/arch/evbppc/obs405/rbus_machdep.c 1.1 (new)
sys/arch/powerpc/conf/files.ibm4xx 1.6-1.7
sys/arch/powerpc/ibm4xx/board_prop.c 1.1 (new)
sys/arch/powerpc/ibm4xx/dev/com_opb.c 1.12
sys/arch/powerpc/ibm4xx/dev/comopbvar.h 1.1 (new)
sys/arch/powerpc/ibm4xx/ibm40x_machdep.c 1.3-1.4
sys/arch/powerpc/ibm4xx/ibm4xx_autoconf.c 1.1-1.2 (new)
sys/arch/powerpc/ibm4xx/ibm4xx_machdep.c 1.1-1.3 (new)
sys/arch/powerpc/ibm4xx/ibm4xxgpx_autoconf.c 1.2-1.3
sys/arch/powerpc/ibm4xx/openbios/openbios.c 1.1 (new)
sys/arch/powerpc/include/ibm4xx/cpu.h 1.7-1.10
sys/arch/powerpc/include/ibm4xx/openbios.h 1.1 (new)

Update OpenBlockS266 support to more modern, stable sources.
 1.2.4.5  24-Jan-2005  skrll Sync with HEAD.
 1.2.4.4  21-Sep-2004  skrll Fix the sync with head I botched.
 1.2.4.3  18-Sep-2004  skrll Sync with HEAD.
 1.2.4.2  03-Aug-2004  skrll Sync with HEAD
 1.2.4.1  30-Dec-2003  skrll file ibm40x_machdep.c was added on branch ktrace-lwp on 2004-08-03 10:39:28 +0000
 1.5.110.1  23-Jun-2011  cherry Catchup with rmind-uvmplock merge.

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