From: Kevin Hao <kexin.hao@windriver.com>
To: openembedded-core@lists.openembedded.org
Cc: Anuj Mittal <anuj.mittal@intel.com>
Subject: [hardknott 2/2] armv9a/tune: Add the support for the Neoverse N2 core
Date: Sat, 15 Jan 2022 09:50:44 +0800 [thread overview]
Message-ID: <20220115015044.1142719-3-kexin.hao@windriver.com> (raw)
In-Reply-To: <20220115015044.1142719-1-kexin.hao@windriver.com>
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
prev parent reply other threads:[~2022-01-15 1:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-15 1:50 [hardknott 0/2] Add tune for Neoverse N2 core Kevin Hao
2022-01-15 1:50 ` [hardknott 1/2] arch-armv8-5a.inc: Add tune include for armv8.5a Kevin Hao
2022-01-15 1:50 ` Kevin Hao [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220115015044.1142719-3-kexin.hao@windriver.com \
--to=kexin.hao@windriver.com \
--cc=anuj.mittal@intel.com \
--cc=openembedded-core@lists.openembedded.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).