linux-kernel - Re: [PATCH v2 00/28] sparc32: sunset sun4m and sun4d

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Date: Tue, 23 Apr 2024 20:02:16 +0200
From: Sam Ravnborg <sam@...nborg.org>
To: "David S. Miller" <davem@...emloft.net>,
	Arnd Bergmann <arnd@...nel.org>,
	Andreas Larsson <andreas@...sler.com>, Helge Deller <deller@....de>,
	Randy Dunlap <rdunlap@...radead.org>,
	John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
	Mark Cave-Ayland <mark.cave-ayland@...nde.co.uk>,
	Kjetil Oftedal <oftedal@...il.com>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linux-sound@...r.kernel.org
Subject: Re: [PATCH v2 00/28] sparc32: sunset sun4m and sun4d

Hi Andreas,

On Sat, Mar 09, 2024 at 07:15:21PM +0100, Sam Ravnborg via B4 Relay wrote:
> This is the second attempt to sunset sun4m and sun4d.
> See [1] for the inital attempt.
> 
> The sun4m and sun4d parts of the kernel have seen no real interest
> for several years now. Last time a few people surfaced, but it was
> either due to a personal project or for nostalgic reasons.
> It is time to let go and drop the parts of sparc32 that in reality
> are not in use.
> 
> LEON from Frontgrade Gaisler is the only real user of sparc32,
> and this patchset reduces sparc32 to what is required by LEON.
> 
> The defconfig is first adapted to the one used by Gaisler.
> Then the patches removes sun4m and sun4d specific
> implementations such as small drivers, SMP support, IRQ suppor etc.
> 
> Removing sun4m and sun4d support allowed removal of the run time
> patching of the code as well as a lot of assembler code.
> The result is a much cleaner assembler code that is easier to
> understand and thus maintain and extend.
> 
> Changes in v2:
>   - Rebased on top of Andreas' for-next branch
>   - Collected ack's
>   - Added patch to remove cpuid patching (Andreas)
>   - Run-time testing using qemu (Andreas, Mark Cave-Ayland)

Please let me know if you expect me to rebase this on for-next.
I have not yet tried if there are merge conflicts but can take a look in
a some days if required.

That is assuming you agree with the sunset of the sun platforms...

	Sam