linux-kernel - Re: [PATCH v2 0/3] New driver for Intel(Altera) FPGA System ID softIP

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Date:   Thu, 28 Jul 2022 09:58:03 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     kah.jing.lee@...el.com
Cc:     linux-kernel@...r.kernel.org, arnd@...db.de,
        rafael.j.wysocki@...el.com, tien.sung.ang@...el.com,
        dinh.nguyen@...el.com
Subject: Re: [PATCH v2 0/3] New driver for Intel(Altera) FPGA System ID softIP

On Thu, Jul 21, 2022 at 08:30:19PM +0800, kah.jing.lee@...el.com wrote:
> From: Kah Jing Lee <kah.jing.lee@...el.com>
> 
> Hi,
> 
> I would like to request review for the new System ID driver for Intel FPGA
> platform.
> 
> New sysid driver for Altera(Intel) Sysid component is generally part of an
> FPGA design. The component can be hotplugged when the FPGA is reconfigured.
> 
> There are two basic ways to use the system ID core:
> - Verify the system ID before downloading new software to a system. This
> method can be used by software development tools, before downloading a
> program to a target hardware system, if the program is compiled for
> different hardware.
> 
> - Check system ID after reset. If a program is running on hardware other
> than the expected Platform Designer system, the program may fail to
> function altogether. If the program does not crash, it can behave
> erroneously in subtle ways that are difficult to debug. To protect against
> this case, a program can compare the expected system ID against the
> system ID core, and report an error if they do not match.
> 
> Documentation link:
> https://rocketboards.org/foswiki/Documentation/AgilexSoCGSRD#PR_Files
> 
> Feedback from maintainers:
> https://lore.kernel.org/lkml/YpmqeHt5Y31ffh5Q@kroah.com/#t

That does not describe what changed from the previous version at all, it
just points to a response from me saying you all need to work on this
driver.

thanks,

greg k-h