armv9a/tune: Add the support for the Neoverse N2 core

This adds the support for the Neoverse N2 core, even though the
Neoverse N2 core implements the Arm v9.0-A architecture, but the support
of it in GCC is based on the Arm v8.5-A architecture. Please see the
commit 50d9db203bc3 ("aarch64: Add support for Neoverse N2 CPU") in GCC
for more detail.

(From OE-Core rev: 37597397f03b6b0082a702147dc536ff8b2fa7a3)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kevin Hao
2021-12-24 18:05:18 +08:00
committed by Richard Purdie
parent 2dfd80bce5
commit 5ea171985c

View File

@@ -0,0 +1,22 @@
#
# Tune Settings for Neoverse-N2
#
DEFAULTTUNE ?= "neoversen2"
TUNEVALID[neoversen2] = "Enable Neoverse-N2 specific processor optimizations"
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'neoversen2', ' -mcpu=neoverse-n2', '', d)}"
# Even though the Neoverse N2 core implemnts the Arm v9.0-A architecture,
# but the support of it in GCC is based on the Arm v8.5-A architecture.
require conf/machine/include/arm/arch-armv8-5a.inc
# Little Endian base configs
AVAILTUNES += "neoversen2 neoversen2-crypto"
ARMPKGARCH:tune-neoversen2 = "neoversen2"
ARMPKGARCH:tune-neoversen2-crypto = "neoversen2-crypto"
TUNE_FEATURES:tune-neoversen2 = "${TUNE_FEATURES:tune-armv8-5a} neoversen2"
TUNE_FEATURES:tune-neoversen2-crypto = "${TUNE_FEATURES:tune-neoversen2} crypto"
PACKAGE_EXTRA_ARCHS:tune-neoversen2 = "${PACKAGE_EXTRA_ARCHS:tune-armv8-5a} neoversen2"
PACKAGE_EXTRA_ARCHS:tune-neoversen2-crypto = "${PACKAGE_EXTRA_ARCHS:tune-armv8-5a-crypto} neoversen2 neoversen2-crypto"
BASE_LIB:tune-neoversen2 = "lib64"
BASE_LIB:tune-neoversen2-crypto = "lib64"