[OE-core] [PATCH 1/2] armv8: update to use armv8-a tune

[akuster808]

On 07/31/2017 10:31 AM, Mark Hatle wrote:
> On 7/31/17 12:16 PM, Armin Kuster wrote:
>> Signed-off-by: Armin Kuster <akuster808 at gmail.com>
>> ---
>>   meta/conf/machine/include/arm/arch-armv8.inc | 25 +++++++++++++++++++++++++
>>   1 file changed, 25 insertions(+)
>>
>> diff --git a/meta/conf/machine/include/arm/arch-armv8.inc b/meta/conf/machine/include/arm/arch-armv8.inc
>> index 5e832fa..dc1ba5e 100644
>> --- a/meta/conf/machine/include/arm/arch-armv8.inc
>> +++ b/meta/conf/machine/include/arm/arch-armv8.inc
>> @@ -1 +1,26 @@
>> +DEFAULTTUNE ?= "armv8-a"
> do we want the '-a'?  The other arm (7) are of the format armv7a (no '-').
works for me either way.

While we are at it. How would we want ‘armv8.1-a’, ‘armv8.2-a’, 
‘armv8.3-a' formated as?

- armin
>
> --Mark
>
>> +
>> +TUNEVALID[armv8-a] = "Enable instructions for ARMv8-a"
>> +TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'armv8-a', ' -march=armv8-a', '', d)}"
>> +
>> +TUNEVALID[crypto] = "Enable crypto instructions for ARMv8-a"
>> +TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'crypto', '+crypto', '', d)}"
>> +
>> +MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'armv8-a', 'armv8a:', '' ,d)}"
>> +
>>   require conf/machine/include/arm/arch-arm64.inc
>> +
>> +AVAILTUNES += "armv8-a armv8-a-crypto"
>> +ARMPKGARCH_tune-armv8-a ?= "armv8-a"
>> +
>> +# Enable Crypto extension. This also enables Advanced SIMD and floating-point instructions
>> +ARMPKGARCH_tune-armv8-a-crypto ?= "armv8-a"
>> +
>> +TUNE_FEATURES_tune-armv8-a = "aarch64 armv8-a"
>> +TUNE_FEATURES_tune-armv8-a-crypto = "${TUNE_FEATURES_tune-armv8-a} crypto"
>> +
>> +PACKAGE_EXTRA_ARCHS_tune-armv8-a = "aarch64 armv8-a"
>> +PACKAGE_EXTRA_ARCHS_tune-armv8-a-crypto = "${PACKAGE_EXTRA_ARCHS_tune-armv8-a} armv8-a-crypto"
>> +
>> +BASE_LIB_tune-armv8-a = "${BASE_LIB_tune-aarch64}"
>> +BASE_LIB_tune-armv8-a-crypto = "${BASE_LIB_tune-aarch64}"
>>

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