linux-sg2042/arch/arm64
Marc Zyngier 623eefa8d0 arm64: KVM: Switch the sys_reg search to be a binary search
Our 64bit sys_reg table is about 90 entries long (so far, and the
PMU support is likely to increase this). This means that on average,
it takes 45 comparaisons to find the right entry (and actually the
full 90 if we have to search the invariant table).

Not the most efficient thing. Specially when you think that this
table is already sorted. Switching to a binary search effectively
reduces the search to about 7 comparaisons. Slightly better!

As an added bonus, the comparison is done by comparing all the
fields at once, instead of one at a time.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
..
boot arm64: kbuild: make "make install" not depend on vmlinux 2016-02-19 10:33:35 +00:00
configs arm64: defconfig: updates for 4.5 2016-01-26 11:24:41 +00:00
crypto arm/arm64: crypto: assure that ECB modes don't require an IV 2016-02-15 15:48:29 +00:00
include arm64: KVM: Add a new vcpu device control group for PMUv3 2016-02-29 18:34:21 +00:00
kernel arm64: VHE: Add support for running Linux in EL2 mode 2016-02-29 18:34:18 +00:00
kvm arm64: KVM: Switch the sys_reg search to be a binary search 2016-02-29 18:34:22 +00:00
lib arm64/efi: Make strnlen() available to the EFI namespace 2016-02-16 10:32:10 +00:00
mm mm: ASLR: use get_random_long() 2016-02-27 10:28:52 -08:00
net arm64: bpf: add extra pass to handle faulty codegen 2016-01-17 19:15:26 -05:00
xen xen/arm: introduce HYPERVISOR_platform_op on arm and arm64 2015-12-21 14:40:56 +00:00
Kconfig arm64: VHE: Add support for running Linux in EL2 mode 2016-02-29 18:34:18 +00:00
Kconfig.debug arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug 2016-01-09 06:30:49 -08:00
Kconfig.platforms ARM: SoC support for Tegra platforms for v4.5 2016-01-22 17:30:52 -08:00
Makefile arm64: kbuild: make "make install" not depend on vmlinux 2016-02-19 10:33:35 +00:00