[Buildroot] [PATCH 3/4 v3] arch/arm: add big.LITTLE cpu variants
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Sat Jul 22 21:29:46 UTC 2017
Hello,
On Sun, 9 Jul 2017 11:30:00 +0200, Yann E. MORIN wrote:
> The big.LITTLE configurations can be optimised for by gcc, and a few
> users wonder what they should choose when they have such CPUs.
>
> Add new entries for those big.LITTLE configurations.
>
> Note: the various combos were added in various gcc versions, but only
> really worked in later versions:
>
> Variant | Introduced in | First built in
> ----------+---------------+----------------
> a15-a7 | 4.9 | 4.9
> a17-a7 | 5 | 5
> a57-a53 | 4.9 | 6
> a72-a53 | 5 | 6
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Thomas De Schampheleire <patrickdepinguin at gmail.com>
> Cc: Baruch Siach <baruch at tkos.co.il>
>
> ---
> Changes v1 -> v2:
> - remove superfluous parentheses (Baruch)
> ---
> arch/Config.in.arm | 38 ++++++++++++++++++++++
> package/gcc/Config.in.host | 5 ++-
> .../Config.in | 2 ++
> .../toolchain-external-codesourcery-arm/Config.in | 4 +++
> 4 files changed, 48 insertions(+), 1 deletion(-)
Applied to master, thanks.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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