From: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
To: catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
x86@kernel.org, hpa@zytor.com, rafael@kernel.org,
lenb@kernel.org, gregkh@linuxfoundation.org,
mchehab+huawei@kernel.org, eugenis@google.com,
tony.luck@intel.com, pcc@google.com, peterz@infradead.org,
marcos@orca.pet, marcan@marcan.st, linus.walleij@linaro.org,
nicolas.ferre@microchip.com, conor.dooley@microchip.com,
arnd@arndb.de, ast@kernel.org, peter.chen@kernel.org,
kuba@kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org
Cc: tarumizu.kohei@fujitsu.com
Subject: [PATCH v5 2/6] soc: fujitsu: Add Kconfig/Makefile to build hardware prefetch control driver
Date: Tue, 7 Jun 2022 21:05:26 +0900 [thread overview]
Message-ID: <20220607120530.2447112-3-tarumizu.kohei@fujitsu.com> (raw)
In-Reply-To: <20220607120530.2447112-1-tarumizu.kohei@fujitsu.com>
Adds Kconfig/Makefile to build hardware prefetch control driver for
A64FX support, and also adds a MAINTAINERS entry.
Signed-off-by: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
---
MAINTAINERS | 5 +++++
drivers/soc/Kconfig | 1 +
drivers/soc/Makefile | 1 +
drivers/soc/fujitsu/Kconfig | 26 ++++++++++++++++++++++++++
drivers/soc/fujitsu/Makefile | 2 ++
5 files changed, 35 insertions(+)
create mode 100644 drivers/soc/fujitsu/Kconfig
create mode 100644 drivers/soc/fujitsu/Makefile
diff --git a/MAINTAINERS b/MAINTAINERS
index d6d879cb0afd..b3e920a8a044 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8620,6 +8620,11 @@ F: include/linux/hwmon*.h
F: include/trace/events/hwmon*.h
K: (devm_)?hwmon_device_(un)?register(|_with_groups|_with_info)
+HARDWARE PREFETCH CONTROL DRIVERS
+M: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
+S: Maintained
+F: drivers/soc/fujitsu/a64fx-pfctl.c
+
HARDWARE RANDOM NUMBER GENERATOR CORE
M: Matt Mackall <mpm@selenic.com>
M: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index c5aae42673d3..d87754799d90 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -9,6 +9,7 @@ source "drivers/soc/atmel/Kconfig"
source "drivers/soc/bcm/Kconfig"
source "drivers/soc/canaan/Kconfig"
source "drivers/soc/fsl/Kconfig"
+source "drivers/soc/fujitsu/Kconfig"
source "drivers/soc/imx/Kconfig"
source "drivers/soc/ixp4xx/Kconfig"
source "drivers/soc/litex/Kconfig"
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 904eec2a7871..6c8ff1792cda 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_SOC_CANAAN) += canaan/
obj-$(CONFIG_ARCH_DOVE) += dove/
obj-$(CONFIG_MACH_DOVE) += dove/
obj-y += fsl/
+obj-y += fujitsu/
obj-$(CONFIG_ARCH_GEMINI) += gemini/
obj-y += imx/
obj-y += ixp4xx/
diff --git a/drivers/soc/fujitsu/Kconfig b/drivers/soc/fujitsu/Kconfig
new file mode 100644
index 000000000000..6c5990b75cc5
--- /dev/null
+++ b/drivers/soc/fujitsu/Kconfig
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menu "Fujitsu SoC drivers"
+
+config ALLOW_INCOMPLETE_CACHE_SYSFS
+ bool
+
+config A64FX_HWPF_CONTROL
+ tristate "A64FX Hardware Prefetch Control driver"
+ depends on ARM64
+ select ALLOW_INCOMPLETE_CACHE_SYSFS
+ help
+ This provides a sysfs interface to control the Hardware Prefetch
+ behavior for A64FX.
+
+ A64FX has IMP_PF_STREAM_DETECT_CTRL_EL0, which can control the
+ hardware prefech behavior. If the processor supports this, the
+ module can be loaded with the name a64fx-pfctl.
+
+ Depending on the characteristics of the application, this register
+ parameters improve or degrade performance.
+
+ Please see Documentation/ABI/testing/sysfs-devices-system-cpu for
+ more information.
+
+endmenu
diff --git a/drivers/soc/fujitsu/Makefile b/drivers/soc/fujitsu/Makefile
new file mode 100644
index 000000000000..35e284a548bb
--- /dev/null
+++ b/drivers/soc/fujitsu/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_A64FX_HWPF_CONTROL) += a64fx-pfctl.o
--
2.27.0
next prev parent reply other threads:[~2022-06-07 12:11 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 12:05 [PATCH v5 0/6] Add hardware prefetch control driver for A64FX and x86 Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 1/6] soc: fujitsu: Add hardware prefetch control driver for A64FX Kohei Tarumizu
2022-06-10 13:20 ` Greg KH
2022-06-07 12:05 ` Kohei Tarumizu [this message]
2022-06-07 14:40 ` [PATCH v5 2/6] soc: fujitsu: Add Kconfig/Makefile to build hardware prefetch control driver Randy Dunlap
2022-06-07 12:05 ` [PATCH v5 3/6] arm64: Create cache sysfs directory without ACPI PPTT for hardware prefetch control Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 4/6] x86: Add hardware prefetch control driver for x86 Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 5/6] x86: Add Kconfig/Makefile to build hardware prefetch control driver Kohei Tarumizu
2022-06-07 14:40 ` Randy Dunlap
2022-06-08 6:11 ` tarumizu.kohei
2022-06-07 12:05 ` [PATCH v5 6/6] docs: ABI: Add sysfs documentation interface of " Kohei Tarumizu
2022-06-10 13:07 ` [PATCH v5 0/6] Add hardware prefetch control driver for A64FX and x86 Greg KH
2022-06-14 11:55 ` tarumizu.kohei
2022-06-14 12:34 ` 'Greg KH'
2022-06-17 9:20 ` tarumizu.kohei
2022-06-27 9:36 ` Linus Walleij
2022-06-28 13:55 ` tarumizu.kohei
2022-06-28 16:39 ` Luck, Tony
2022-06-30 5:24 ` tarumizu.kohei
2022-06-28 15:46 ` Dave Hansen
2022-06-28 20:20 ` Linus Walleij
2022-06-28 21:01 ` Dave Hansen
2022-06-28 21:17 ` Linus Walleij
2022-06-30 9:43 ` tarumizu.kohei
2022-06-10 13:48 ` Linus Walleij
2022-06-17 9:06 ` tarumizu.kohei
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