[PATCH v4 7/8] x86: Add Kconfig/Makefile to build hardware prefetch control driver

[Kohei Tarumizu]

This adds Kconfig/Makefile to build hardware prefetch control driver
for x86 support. This also adds a MAINTAINERS entry.

Signed-off-by: Kohei Tarumizu <tarumizu.kohei at fujitsu.com>
---
 MAINTAINERS                  | 1 +
 arch/x86/Kconfig             | 6 ++++++
 arch/x86/kernel/cpu/Makefile | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index dd1345087881..9759c3606c7d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8623,6 +8623,7 @@ K:	(devm_)?hwmon_device_(un)?register(|_with_groups|_with_info)
 HARDWARE PREFETCH CONTROL DRIVERS
 M:	Kohei Tarumizu <tarumizu.kohei at fujitsu.com>
 S:	Maintained
+F:	arch/x86/kernel/cpu/x86-pfctl.c
 F:	drivers/base/pfctl.c
 F:	drivers/soc/fujitsu/a64fx-pfctl.c
 F:	include/linux/pfctl.h
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4bed3abf444d..81df9efc69e5 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1359,6 +1359,12 @@ config X86_CPUID
 	  with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
 	  /dev/cpu/31/cpuid.
 
+config X86_HWPF_CONTROL
+	tristate "x86 Hardware Prefetch Control support"
+	depends on X86_64 && HWPF_CONTROL
+	help
+	  This adds Hardware Prefetch driver control support for X86.
+
 choice
 	prompt "High Memory Support"
 	default HIGHMEM4G
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 9661e3e802be..1aa13dad17a3 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -56,6 +56,8 @@ obj-$(CONFIG_X86_LOCAL_APIC)		+= perfctr-watchdog.o
 obj-$(CONFIG_HYPERVISOR_GUEST)		+= vmware.o hypervisor.o mshyperv.o
 obj-$(CONFIG_ACRN_GUEST)		+= acrn.o
 
+obj-$(CONFIG_X86_HWPF_CONTROL)		+= x86-pfctl.o
+
 ifdef CONFIG_X86_FEATURE_NAMES
 quiet_cmd_mkcapflags = MKCAP   $@
       cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $@ $^
-- 
2.27.0