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Subject[PATCH v2 4/8] arm64: Add Kconfig/Makefile to build hardware prefetch control driver
Date
This adds Kconfig/Makefile to build hardware prefetch control driver
for arm64 support. This also adds a MAINTAINERS entry.

Signed-off-by: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
---
MAINTAINERS | 1 +
arch/arm64/Kconfig | 7 +++++++
arch/arm64/kernel/Makefile | 1 +
3 files changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 213537cea2e2..7eb530f5b301 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8455,6 +8455,7 @@ K: (devm_)?hwmon_device_(un)?register(|_with_groups|_with_info)
HARDWARE PREFETCH CONTROL DRIVERS
M: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
S: Maintained
+F: arch/arm64/kernel/pfctl.c
F: drivers/base/pfctl.c
F: include/linux/pfctl.h

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 09b885cc4db5..da6bf7e75df6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -36,6 +36,7 @@ config ARM64
select ARCH_HAS_SET_DIRECT_MAP
select ARCH_HAS_SET_MEMORY
select ARCH_STACKWALK
+ select ARCH_HAS_HWPF_CONTROL
select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
@@ -2027,6 +2028,12 @@ config STACKPROTECTOR_PER_TASK
def_bool y
depends on STACKPROTECTOR && CC_HAVE_STACKPROTECTOR_SYSREG

+config ARM64_HWPF_CONTROL
+ tristate "ARM64 Hardware Prefetch Control support"
+ depends on HWPF_CONTROL
+ help
+ This adds Hardware Prefetch driver control support for ARM64.
+
endmenu

menu "Boot options"
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 88b3e2a21408..d5eb1dc6bfa6 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -73,6 +73,7 @@ obj-$(CONFIG_ARM64_PTR_AUTH) += pointer_auth.o
obj-$(CONFIG_ARM64_MTE) += mte.o
obj-y += vdso-wrap.o
obj-$(CONFIG_COMPAT_VDSO) += vdso32-wrap.o
+obj-$(CONFIG_ARM64_HWPF_CONTROL) += pfctl.o

obj-y += probes/
head-y := head.o
--
2.27.0
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