RE:

RE:

[misono.tomohiro]

Sorry, I failed to add proper subject to cover letter and it does not show lore archive.
I will resend the whole serieses. Plese discard this.

Tomohiro

> -----Original Message-----
> From: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
> Sent: Friday, January 8, 2021 7:32 PM
> To: linux-arm-kernel@lists.infradead.org; soc@kernel.org
> Cc: will@kernel.org; catalin.marinas@arm.com; arnd@arndb.de; olof@lixom.net; Misono, Tomohiro/味曽野 智礼
> <misono.tomohiro@fujitsu.com>
> Subject:
> 
> Subject: [RFC PATCH 00/10] Add Fujitsu A64FX soc entry/hardware barrier driver
> 
> Hello,
> 
> This series adds Fujitsu A64FX SoC entry in drivers/soc and hardware barrier driver for it.
> 
> [Driver Description]
>  A64FX CPU has several functions for HPC workload and hardware barrier  is one of them. It is a mechanism to realize
> fast synchronization by  PEs belonging to the same L3 cache domain by using implementation  defined hardware
> registers.
>  For more details, see A64FX HPC extension specification in  https://github.com/fujitsu/A64FX
> 
>  The driver mainly offers a set of ioctls to manipulate related registers.
>  Patch 1-9 implements driver code and patch 10 finally adds kconfig,  Makefile and MAINTAINER entry for the driver.
> 
>  Also, C library and test program for this driver is available on:
>  https://github.com/fujitsu/hardware_barrier
> 
>  The driver is based on v5.11-rc2 and tested on FX700 environment.
> 
> [RFC]
>  This is the first time we upstream drivers for our chip and I want to  confirm driver location and patch submission
> process.
> 
>  Based on my observation it seems drivers/soc folder is right place to put  this driver, so I added Kconfig entry for arm64
> platform config, created  soc/fujitsu folder and updated MAINTAINER entry accordingly (last patch).
>  Is it right?
> 
>  Also for final submission I think I need to 1) create some public git  tree to push driver code (github or something), 2)
> make pull request to  SOC team (soc@kernel.org). Is it a correct procedure?
> 
>  I will appreciate any help/comments.
> 
> sidenote: We plan to post other drivers for A64FX HPC extension (prefetch control and cache control) too anytime soon.
> 
> Misono Tomohiro (10):
>   soc: fujitsu: hwb: Add hardware barrier driver init/exit code
>   soc: fujtisu: hwb: Add open operation
>   soc: fujitsu: hwb: Add IOC_BB_ALLOC ioctl
>   soc: fujitsu: hwb: Add IOC_BW_ASSIGN ioctl
>   soc: fujitsu: hwb: Add IOC_BW_UNASSIGN ioctl
>   soc: fujitsu: hwb: Add IOC_BB_FREE ioctl
>   soc: fujitsu: hwb: Add IOC_GET_PE_INFO ioctl
>   soc: fujitsu: hwb: Add release operation
>   soc: fujitsu: hwb: Add sysfs entry
>   soc: fujitsu: hwb: Add Kconfig/Makefile to build fujitsu_hwb driver
> 
>  MAINTAINERS                            |    7 +
>  arch/arm64/Kconfig.platforms           |    5 +
>  drivers/soc/Kconfig                    |    1 +
>  drivers/soc/Makefile                   |    1 +
>  drivers/soc/fujitsu/Kconfig            |   24 +
>  drivers/soc/fujitsu/Makefile           |    2 +
>  drivers/soc/fujitsu/fujitsu_hwb.c      | 1253 ++++++++++++++++++++++++
>  include/uapi/linux/fujitsu_hpc_ioctl.h |   41 +
>  8 files changed, 1334 insertions(+)
>  create mode 100644 drivers/soc/fujitsu/Kconfig  create mode 100644 drivers/soc/fujitsu/Makefile  create mode
> 100644 drivers/soc/fujitsu/fujitsu_hwb.c  create mode 100644 include/uapi/linux/fujitsu_hpc_ioctl.h
> 
> --
> 2.26.2

RE;

[Olena Shevchenko]

Hello,

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Thank you
Mrs. Olena 

RE:

[Mr. James Khmalo]

Good Day,
 
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I am Mr. James Khmalo, the bank manager with ABSA bank of South Africa,  and a personal banker of Dr.Mohamed Farouk Ibrahim, an Egyptian who happened to be a medical contractor attached to the overthrown Afghan government by the Taliban government.   
Dr.Mohamed Farouk Ibrahim deposits some sum of money with our bank but passed away with his family while trying to escape from Kandahar.
The said sum can be used for an investment if you are interested.  Details relating to the funds are in my position and will present you as the Next-of-Kin because there was none, and I shall furnish you with more detail once your response.

Regards,
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Tel: 27-632696383
South Africa

(no subject)

[Misono Tomohiro]

Subject: [RFC PATCH 00/10] Add Fujitsu A64FX soc entry/hardware barrier driver

Hello,

This series adds Fujitsu A64FX SoC entry in drivers/soc and hardware
barrier driver for it.

[Driver Description]
 A64FX CPU has several functions for HPC workload and hardware barrier
 is one of them. It is a mechanism to realize fast synchronization by
 PEs belonging to the same L3 cache domain by using implementation
 defined hardware registers.
 For more details, see A64FX HPC extension specification in
 https://github.com/fujitsu/A64FX
 
 The driver mainly offers a set of ioctls to manipulate related registers.
 Patch 1-9 implements driver code and patch 10 finally adds kconfig,
 Makefile and MAINTAINER entry for the driver.  

 Also, C library and test program for this driver is available on: 
 https://github.com/fujitsu/hardware_barrier

 The driver is based on v5.11-rc2 and tested on FX700 environment.

[RFC]
 This is the first time we upstream drivers for our chip and I want to
 confirm driver location and patch submission process.

 Based on my observation it seems drivers/soc folder is right place to put
 this driver, so I added Kconfig entry for arm64 platform config, created
 soc/fujitsu folder and updated MAINTAINER entry accordingly (last patch).
 Is it right?

 Also for final submission I think I need to 1) create some public git
 tree to push driver code (github or something), 2) make pull request to
 SOC team (soc@kernel.org). Is it a correct procedure?

 I will appreciate any help/comments.

sidenote: We plan to post other drivers for A64FX HPC extension
(prefetch control and cache control) too anytime soon.

Misono Tomohiro (10):
  soc: fujitsu: hwb: Add hardware barrier driver init/exit code
  soc: fujtisu: hwb: Add open operation
  soc: fujitsu: hwb: Add IOC_BB_ALLOC ioctl
  soc: fujitsu: hwb: Add IOC_BW_ASSIGN ioctl
  soc: fujitsu: hwb: Add IOC_BW_UNASSIGN ioctl
  soc: fujitsu: hwb: Add IOC_BB_FREE ioctl
  soc: fujitsu: hwb: Add IOC_GET_PE_INFO ioctl
  soc: fujitsu: hwb: Add release operation
  soc: fujitsu: hwb: Add sysfs entry
  soc: fujitsu: hwb: Add Kconfig/Makefile to build fujitsu_hwb driver

 MAINTAINERS                            |    7 +
 arch/arm64/Kconfig.platforms           |    5 +
 drivers/soc/Kconfig                    |    1 +
 drivers/soc/Makefile                   |    1 +
 drivers/soc/fujitsu/Kconfig            |   24 +
 drivers/soc/fujitsu/Makefile           |    2 +
 drivers/soc/fujitsu/fujitsu_hwb.c      | 1253 ++++++++++++++++++++++++
 include/uapi/linux/fujitsu_hpc_ioctl.h |   41 +
 8 files changed, 1334 insertions(+)
 create mode 100644 drivers/soc/fujitsu/Kconfig
 create mode 100644 drivers/soc/fujitsu/Makefile
 create mode 100644 drivers/soc/fujitsu/fujitsu_hwb.c
 create mode 100644 include/uapi/linux/fujitsu_hpc_ioctl.h

-- 
2.26.2

Re:

[Arnd Bergmann]

On Fri, Jan 8, 2021 at 11:32 AM Misono Tomohiro
<misono.tomohiro@jp.fujitsu.com> wrote:
> Subject: [RFC PATCH 00/10] Add Fujitsu A64FX soc entry/hardware barrier driver
> [RFC]
>  This is the first time we upstream drivers for our chip and I want to
>  confirm driver location and patch submission process.
>
>  Based on my observation it seems drivers/soc folder is right place to put
>  this driver, so I added Kconfig entry for arm64 platform config, created
>  soc/fujitsu folder and updated MAINTAINER entry accordingly (last patch).
>  Is it right?

This looks good as a start. It may be possible that during review, we
come up with a different location or a different user interface that may
change the code, but if it stays in drivers/soc/fujitsu, then the other
steps are absolutely right.

>  Also for final submission I think I need to 1) create some public git
>  tree to push driver code (github or something), 2) make pull request to
>  SOC team (soc@kernel.org). Is it a correct procedure?

Yes. I would prefer something other than github, e.g. an account
on a fujitsu.com host, on kernel.org, or on git.linaro.org, but github
works if none of the alternatives are easy for you.

When you send a pull request, make sure you sign the tag with
a gpg key, ideally after getting it on the kernel.org keyring [1].

       Arnd

[1] https://korg.docs.kernel.org/pgpkeys.html

Re:

[Arnd Bergmann]

On Fri, Jan 8, 2021 at 11:32 AM Misono Tomohiro
<misono.tomohiro@jp.fujitsu.com> wrote:
> Subject: [RFC PATCH 00/10] Add Fujitsu A64FX soc entry/hardware barrier driver
> [RFC]
>  This is the first time we upstream drivers for our chip and I want to
>  confirm driver location and patch submission process.
>
>  Based on my observation it seems drivers/soc folder is right place to put
>  this driver, so I added Kconfig entry for arm64 platform config, created
>  soc/fujitsu folder and updated MAINTAINER entry accordingly (last patch).
>  Is it right?

This looks good as a start. It may be possible that during review, we
come up with a different location or a different user interface that may
change the code, but if it stays in drivers/soc/fujitsu, then the other
steps are absolutely right.

>  Also for final submission I think I need to 1) create some public git
>  tree to push driver code (github or something), 2) make pull request to
>  SOC team (soc@kernel.org). Is it a correct procedure?

Yes. I would prefer something other than github, e.g. an account
on a fujitsu.com host, on kernel.org, or on git.linaro.org, but github
works if none of the alternatives are easy for you.

When you send a pull request, make sure you sign the tag with
a gpg key, ideally after getting it on the kernel.org keyring [1].

       Arnd

[1] https://korg.docs.kernel.org/pgpkeys.html

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