NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

thorpej
Fri Jun  6 12:40:18 PDT 1997
Update of /cvsroot/src/sys/vm
In directory netbsd1:/var/slash-tmp/cvs-serv22533

Modified Files:
      Tag: thorpej-bus-dma
        vm_page.c 
Log Message:
Remove an i386-specific kludge in pmap_steal_memory(); the i386 no longer
calls this function before vm_mem_init().


thorpej
Fri Jun  6 12:44:28 PDT 1997
Update of /cvsroot/src/sys/arch/i386/i386
In directory netbsd1:/var/slash-tmp/cvs-serv23280

Modified Files:
      Tag: thorpej-bus-dma
        machdep.c 
Log Message:
Some motherboards/BIOSes remap the 384k of RAM covered by the ISA
hole to the end of RAM so that it can be used.  However, on a 16M
system, this puts us "over the top", causing bounce buffers to be
allocated.  This is undesirable.  Detect this condition, and truncate
biosextmem (and print a warning to that effect) if we have ISA DMA
devices configured into the kernel.

Suggested by Chris Demetriou <cgd%netbsd.org@localhost>.