linux/arch/arm64
Frank Hartung 6eeaf4d245 arm64: dts: meson: Add capacity-dmips-mhz attributes to G12B
Meson G12B SoCs (S922X and A311D) are a big-little design where not all CPUs
are equal; the A53s cores are weaker than the A72s.

Include capacity-dmips-mhz properties to tell the OS there is a difference
in processing capacity. The dmips values are based on similar submissions for
other A53/A72 SoCs: HiSilicon 3660 [1] and Rockchip RK3399 [2].

This change is particularly beneficial for use-cases like retro gaming where
emulators often run on a single core. The OS now chooses an A72 core instead
of an A53 core.

[1] https://lore.kernel.org/patchwork/patch/862742/
[2] https://patchwork.kernel.org/patch/10836577/

Signed-off-by: Frank Hartung <supervisedthinking@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:37 -07:00
..
boot arm64: dts: meson: Add capacity-dmips-mhz attributes to G12B 2019-10-07 11:13:37 -07:00
configs arm64: defconfig: Enable Qualcomm QUSB2 PHY 2019-09-04 17:15:29 +02:00
crypto crypto: arm64/aes-neonbs - implement ciphertext stealing for XTS 2019-09-09 17:35:39 +10:00
include mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
kernel arm64, mm: make randomization selected by generic topdown mmap layout 2019-09-24 15:54:11 -07:00
kvm * s390: ioctl hardening, selftests 2019-09-18 09:49:13 -07:00
lib Merge branch 'for-next/atomics' into for-next/core 2019-08-30 12:55:39 +01:00
mm mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
net arm64: bpf: optimize modulo operation 2019-09-03 15:44:40 +02:00
xen treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kbuild arm64: add arch/arm64/Kbuild 2019-08-21 18:47:15 +01:00
Kconfig Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
Kconfig.debug treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig.platforms arm64: exynos: Enable exynos-chipid driver 2019-09-04 22:43:26 +02:00
Makefile Kbuild updates for v5.4 2019-09-20 08:36:47 -07:00