Revision bee8ce809fb1c877388be032b468574a1cfff9ef authored by Haavard Skinnemoen on 24 October 2006, 08:12:41 UTC, committed by Linus Torvalds on 26 October 2006, 03:26:33 UTC
While ioremap() will happily map a physical address through the P2 (uncached) segment when appropriate, iounmap() doesn't know how to handle those mappings. This patch makes iounmap() do the right thing, i.e. nothing, for such mappings. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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smp.txt
To set up SMP
Configure the kernel and answer Y to CONFIG_SMP.
If you are using LILO, it is handy to have both SMP and non-SMP
kernel images on hand. Edit /etc/lilo.conf to create an entry
for another kernel image called "linux-smp" or something.
The next time you compile the kernel, when running a SMP kernel,
edit linux/Makefile and change "MAKE=make" to "MAKE=make -jN"
(where N = number of CPU + 1, or if you have tons of memory/swap
you can just use "-j" without a number). Feel free to experiment
with this one.
Of course you should time how long each build takes :-)
Example:
make config
time -v sh -c 'make clean install modules modules_install'
If you are using some Compaq MP compliant machines you will need to set
the operating system in the BIOS settings to "Unixware" - don't ask me
why Compaqs don't work otherwise.
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