[hardknott 0/2] Add tune for Neoverse N2 core

[hardknott 0/2] Add tune for Neoverse N2 core

[Kevin Hao]

Hi,

The gcc patches for the Neoverse N2 core have been merged into hardknott
branch, this patch series backport two patches from the master branch to
add the corresponding tune files.

Kevin Hao (2):
  arch-armv8-5a.inc: Add tune include for armv8.5a
  armv9a/tune: Add the support for the Neoverse N2 core

 .../machine/include/arm/arch-armv8-5a.inc     | 19 ++++++++++++++++
 .../include/arm/armv9a/tune-neoversen2.inc    | 22 +++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 meta/conf/machine/include/arm/arch-armv8-5a.inc
 create mode 100644 meta/conf/machine/include/arm/armv9a/tune-neoversen2.inc

-- 
2.31.1

[hardknott 1/2] arch-armv8-5a.inc: Add tune include for armv8.5a

[Kevin Hao]

This adds support for the armv8.5a architecture and the crypto
extension.

(From OE-Core rev: 0cb1a6d9cb4c32526d79dad93c8053b3793053f8)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
[Kevin: Convert to the old style override syntax]
Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
---
 .../machine/include/arm/arch-armv8-5a.inc     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 meta/conf/machine/include/arm/arch-armv8-5a.inc

diff --git a/meta/conf/machine/include/arm/arch-armv8-5a.inc b/meta/conf/machine/include/arm/arch-armv8-5a.inc
new file mode 100644
index 000000000000..44c3b5bd2275
--- /dev/null
+++ b/meta/conf/machine/include/arm/arch-armv8-5a.inc
@@ -0,0 +1,19 @@
+DEFAULTTUNE ?= "armv8-5a"
+
+TUNEVALID[armv8-5a] = "Enable instructions for ARMv8.5-a"
+TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'armv8-5a', ' -march=armv8.5-a', '', d)}"
+# TUNE crypto will be handled by arch-armv8a.inc below
+MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'armv8-5a', 'armv8-5a:', '', d)}"
+
+require conf/machine/include/arm/arch-armv8a.inc
+
+# Little Endian base configs
+AVAILTUNES += "armv8-5a armv8-5a-crypto"
+ARMPKGARCH_tune-armv8-5a                    ?= "armv8-5a"
+ARMPKGARCH_tune-armv8-5a-crypto             ?= "armv8-5a"
+TUNE_FEATURES_tune-armv8-5a                  = "aarch64 armv8-5a"
+TUNE_FEATURES_tune-armv8-5a-crypto           = "${TUNE_FEATURES_tune-armv8-5a} crypto"
+PACKAGE_EXTRA_ARCHS_tune-armv8-5a            = "${PACKAGE_EXTRA_ARCHS_tune-armv8a} armv8-5a"
+PACKAGE_EXTRA_ARCHS_tune-armv8-5a-crypto     = "${PACKAGE_EXTRA_ARCHS_tune-armv8-5a} armv8-5a-crypto"
+BASE_LIB_tune-armv8-5a                       = "lib64"
+BASE_LIB_tune-armv8-5a-crypto                = "lib64"
-- 
2.31.1

[hardknott 2/2] armv9a/tune: Add the support for the Neoverse N2 core

[Kevin Hao]

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>
[Kevin: Convert to the old style override syntax]
Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
---
 .../include/arm/armv9a/tune-neoversen2.inc    | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 meta/conf/machine/include/arm/armv9a/tune-neoversen2.inc

diff --git a/meta/conf/machine/include/arm/armv9a/tune-neoversen2.inc b/meta/conf/machine/include/arm/armv9a/tune-neoversen2.inc
new file mode 100644
index 000000000000..dedabcf46e23
--- /dev/null
+++ b/meta/conf/machine/include/arm/armv9a/tune-neoversen2.inc
@@ -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"
-- 
2.31.1