Date: Wed, 4 Feb 2004 05:16:21 -0800 (PST) From: Peter Grehan <grehan@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/powerpc/powerpc pmap.c Message-ID: <200402041316.i14DGLd3039867@repoman.freebsd.org>
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grehan 2004/02/04 05:16:21 PST
FreeBSD src repository
Modified files:
sys/powerpc/powerpc pmap.c
Log:
Remove pmap_pvo_allocf zone alloc function. It was a way of
using the direct-mapping of physmem to force PTE data structures
to be physically addressable so the interrupt-time real-mode
DSI trap handler could perform PTE spills. However, the memory
may have been > 256Mb, which would have caused a BAT spill and
double-interrupt.
The new trap code no longer handles PTE spills, so the requirement
that these pages be direct-mapped no longer applies. The irony is
UMA_MD_SMALL_ALLOC will return direct mappings for these structs :-)
Revision Changes Path
1.69 +4 -27 src/sys/powerpc/powerpc/pmap.c
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