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| author | Rob Herring | 2011-03-04 23:51:59 +0100 |
|---|---|---|
| committer | Russell King | 2011-03-09 01:18:48 +0100 |
| commit | bf9dd36091695f1138a98b6ae85d565e60635545 (patch) | |
| tree | 9bdf84901207c037d9d69c566d3a55dd2d5656ec /arch/arm/mach-footbridge/include/mach/hardware.h | |
| parent | ARM: 6778/1: compressed/head.S: make LDFLAGS_vmlinux into a recursively expan... (diff) | |
| download | kernel-qcow2-linux-bf9dd36091695f1138a98b6ae85d565e60635545.tar.gz kernel-qcow2-linux-bf9dd36091695f1138a98b6ae85d565e60635545.tar.xz kernel-qcow2-linux-bf9dd36091695f1138a98b6ae85d565e60635545.zip | |
ARM: 6786/1: enable CONFIG_KTIME_SCALAR
Use straight 64-bit values as 64-bit operations are fairly efficient on ARM.
Comparing the asm output with and without KTIME_SCALAR, using 64-bit math
generates clearly better code.
Comparing kernel/hrtimer.c .text size, it goes from 0x1414 to 0x119c with
this change.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-footbridge/include/mach/hardware.h')
0 files changed, 0 insertions, 0 deletions