Subject: CVS commit: syssrc/sys/arch/arm/arm32
To: None <source-changes@netbsd.org>
From: Jason R Thorpe <thorpej@netbsd.org>
List: source-changes
Date: 08/13/2002 06:36:33
Module Name: syssrc
Committed By: thorpej
Date: Tue Aug 13 03:36:32 UTC 2002
Modified Files:
syssrc/sys/arch/arm/arm32: pmap.c
Log Message:
Add the brutal hack that allows us to limp along using the read/write
cache line allocation policy on XScale CPUs: in pmap_enter(), if the
pmap is the kernel pmap, clear the X-bit in the PTE, thus disabling
read/write-allocate for managed kernel mappings.
Yes, this is ugly. But it makes userland code run with r/w-allocate,
which is a huge improvement on systems with low core memory performance.
To generate a diff of this commit:
cvs rdiff -r1.108 -r1.109 syssrc/sys/arch/arm/arm32/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.