linux-kernel - [PATCH v2] x86/Makefile: Move the CPU-specific 64-bit tuning settings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1456566961.33591.1629364873255@office.mailbox.org>
Date:   Thu, 19 Aug 2021 11:21:13 +0200 (CEST)
From:   torvic9@...lbox.org
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
Cc:     "masahiroy@...nel.org" <masahiroy@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        "hpa@...or.com" <hpa@...or.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "torvic9@...lbox.org" <torvic9@...lbox.org>
Subject: [PATCH v2] x86/Makefile: Move the CPU-specific 64-bit tuning
 settings

In accordance with the FIXME comment in arch/x86/Makefile, move the
CPU-specific 64-bit tuning settings to arch/x86/Makefile.cpu.

Signed-off-by: Tor Vic <torvic9@...lbox.org>
---
v1->v2:
* drop the second patch in the series
* use srctree with include (Masahiro)

 arch/x86/Makefile     | 11 ++---------
 arch/x86/Makefile.cpu | 12 ++++++++++++
 2 files changed, 14 insertions(+), 9 deletions(-)
 create mode 100644 arch/x86/Makefile.cpu

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 307fd0000a83..0cc5363831b6 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -119,15 +119,8 @@ else
 	# Use -mskip-rax-setup if supported.
 	KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
 
-        # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
-        cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
-        cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
-
-        cflags-$(CONFIG_MCORE2) += \
-                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
-	cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
-		$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
-        cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+        # CPU-specific tuning (64-bit).
+        include $(srctree)/arch/x86/Makefile.cpu
         KBUILD_CFLAGS += $(cflags-y)
 
         KBUILD_CFLAGS += -mno-red-zone
diff --git a/arch/x86/Makefile.cpu b/arch/x86/Makefile.cpu
new file mode 100644
index 000000000000..9c3be14b6c88
--- /dev/null
+++ b/arch/x86/Makefile.cpu
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# CPU tuning section (64-bit).
+
+cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
+cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+
+cflags-$(CONFIG_MCORE2) += \
+	$(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
+	$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
+cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
-- 
2.33.0