linux-kernel - [PATCH v6 13/15] MIPS: Share generic kernel code with other architecture

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Message-ID: <20240118155252.397947-14-gregory.clement@bootlin.com>
Date: Thu, 18 Jan 2024 16:52:42 +0100
From: Gregory CLEMENT <gregory.clement@...tlin.com>
To: Paul Burton <paulburton@...nel.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	linux-mips@...r.kernel.org,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Vladimir  Kondratiev <vladimir.kondratiev@...ileye.com>,
	Tawfik Bayouk <tawfik.bayouk@...ileye.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Théo Lebrun <theo.lebrun@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Gregory CLEMENT <gregory.clement@...tlin.com>
Subject: [PATCH v6 13/15] MIPS: Share generic kernel code with other architecture

Some architectures might seek to utilize a significant portion of the
generic kernel code while maintaining independence from the generic
kernel due to specific peculiarities.

This patch allows for the reuse of core code, preventing unnecessary
duplication.

Suggested-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
 arch/mips/Kbuild           | 1 +
 arch/mips/Kconfig          | 3 +++
 arch/mips/generic/Makefile | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild
index af2967bffb73d..d683993ed331c 100644
--- a/arch/mips/Kbuild
+++ b/arch/mips/Kbuild
@@ -17,6 +17,7 @@ obj- := $(platform-y)
 # mips object files
 # The object files are linked as core-y files would be linked
 
+obj-y += generic/
 obj-y += kernel/
 obj-y += mm/
 obj-y += net/
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 797ae590ebdba..5549d26448941 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -109,6 +109,9 @@ config MIPS_FIXUP_BIGPHYS_ADDR
 config MIPS_GENERIC
 	bool
 
+config MACH_GENERIC_CORE
+	bool
+
 config MACH_INGENIC
 	bool
 	select SYS_SUPPORTS_32BIT_KERNEL
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index e37a59bae0a62..56011d738441f 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -4,9 +4,9 @@
 # Author: Paul Burton <paul.burton@...s.com>
 #
 
-obj-y += init.o
-obj-y += irq.o
-obj-y += proc.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += init.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += irq.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += proc.o
 
 obj-$(CONFIG_YAMON_DT_SHIM)		+= yamon-dt.o
 obj-$(CONFIG_LEGACY_BOARD_SEAD3)	+= board-sead3.o
-- 
2.43.0