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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-08-28 13:08:14 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-09-26 14:39:54 +0100
commit195b58add463f697fb802ed55e26759094d40a54 (patch)
treed3523c21a3bb610a87672356770a83c1e3c0ca8d /arch/arm/boot/bootp
parent8b521cb2947d8811b4cf7fc6a7a6ebde35218243 (diff)
downloadlinux-195b58add463f697fb802ed55e26759094d40a54.tar.gz
ARM: Avoid writing to control register on every exception
If we are not changing the control register value, avoid writing to it. Writes to the control register can be very expensive, taking around a hundred cycles or so. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/boot/bootp')
0 files changed, 0 insertions, 0 deletions