From: Greg KH <gregkh@linuxfoundation.org>
To: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
Cc: 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,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, fenghua.yu@intel.com,
reinette.chatre@intel.com
Subject: Re: [PATCH v3 1/9] drivers: base: Add hardware prefetch control core driver
Date: Thu, 21 Apr 2022 08:18:57 +0200 [thread overview]
Message-ID: <YmD3UX6aTvUXlYF5@kroah.com> (raw)
In-Reply-To: <20220420030223.689259-2-tarumizu.kohei@fujitsu.com>
On Wed, Apr 20, 2022 at 12:02:15PM +0900, Kohei Tarumizu wrote:
> This driver adds the register/unregister function to create the
> "prefetch_control" directory and some attribute files. Attributes are
> only present if the particular cache implements the relevant
> prefetcher controls
>
> If the architecture has control of the CPU's hardware prefetcher
> behavior, use this function to create sysfs. When registering, it is
> necessary to provide what type of hardware prefetcher is supported
> and how to read/write to the register.
>
> Following patches add support for A64FX and x86.
>
> Signed-off-by: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
> ---
> drivers/base/pfctl.c | 458 ++++++++++++++++++++++++++++++++++++++++++
> include/linux/pfctl.h | 49 +++++
> 2 files changed, 507 insertions(+)
> create mode 100644 drivers/base/pfctl.c
> create mode 100644 include/linux/pfctl.h
Thanks to Thomas for pointing this change out to me.
Why did you not use get_maintainer.pl on your patch? You are adding
files here that you want _me_ to maintain for the next 25+ years, yet
not asking for my review? That's not nice, and for that reason alone I
would not accept this change.
Also, this is very hardware-specific, which is not a good thing for code
in drivers/base/ See the mess we have in the topology driver core code
for examples of that mess :(
greg k-h
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next prev parent reply other threads:[~2022-04-21 6:20 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 3:02 [PATCH v3 0/9] Add hardware prefetch control driver for A64FX and x86 Kohei Tarumizu
2022-04-20 3:02 ` [PATCH v3 1/9] drivers: base: Add hardware prefetch control core driver Kohei Tarumizu
2022-04-20 21:40 ` Thomas Gleixner
2022-04-22 12:10 ` tarumizu.kohei
2022-04-21 6:18 ` Greg KH [this message]
2022-04-22 12:30 ` tarumizu.kohei
2022-04-20 3:02 ` [PATCH v3 2/9] drivers: base: Add Kconfig/Makefile to build " Kohei Tarumizu
2022-04-20 3:02 ` [PATCH v3 3/9] soc: fujitsu: Add hardware prefetch control support for A64FX Kohei Tarumizu
2022-04-20 3:02 ` [PATCH v3 4/9] soc: fujitsu: Add Kconfig/Makefile to build hardware prefetch control driver Kohei Tarumizu
2022-04-20 22:14 ` Thomas Gleixner
2022-04-20 3:02 ` [PATCH v3 5/9] arm64: Create cache sysfs directory without ACPI PPTT for hardware prefetch control Kohei Tarumizu
2022-04-20 3:02 ` [PATCH v3 6/9] x86: resctrl: pseudo_lock: Fix to restore to original value when re-enabling hardware prefetch register Kohei Tarumizu
2022-04-20 20:56 ` Dave Hansen
2022-04-22 12:01 ` tarumizu.kohei
2022-04-25 23:17 ` Reinette Chatre
2022-04-27 2:51 ` tarumizu.kohei
2022-04-20 3:02 ` [PATCH v3 7/9] x86: Add hardware prefetch control support for x86 Kohei Tarumizu
2022-04-20 22:27 ` Thomas Gleixner
2022-04-22 12:16 ` tarumizu.kohei
2022-04-20 3:02 ` [PATCH v3 8/9] x86: Add Kconfig/Makefile to build hardware prefetch control driver Kohei Tarumizu
2022-04-20 3:02 ` [PATCH v3 9/9] docs: ABI: Add sysfs documentation interface of " Kohei Tarumizu
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