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Fri, 28 Aug 2026 00:44:48 -0700 (PDT) Received: from buildhost.darklands.se ([2001:9b1:ff:d701:51eb:176f:63d9:53f8]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c255f23d434sm49160766b.54.2026.08.28.00.44.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Aug 2026 00:44:47 -0700 (PDT) From: Magnus Lindholm To: sparclinux@vger.kernel.org Cc: sam@ravnborg.org, andreas@gaisler.com, arnd@kernel.org, davem@davemloft.net, glaubitz@physik.fu-berlin.de Subject: Re: [PATCH v2 00/28] sparc32: sunset sun4m and sun4d Date: Fri, 28 Aug 2026 09:44:46 +0200 Message-ID: <20260828074446.9768-1-linmag7@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20240309-sunset-v2-0-f09912574d2c@ravnborg.org> References: <20240309-sunset-v2-0-f09912574d2c@ravnborg.org> Precedence: bulk X-Mailing-List: sparclinux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi everyone, On Sat, Mar 09, 2024 at 07:15:21PM +0100, Sam Ravnborg 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. I'd like to revisit this discussion. I recently got SILO and modern kernels working on legacy sun4m systems. I missed this discussion the last time around, but I am glad the series has not been merged. The kernel patches are available here: https://lore.kernel.org/sparclinux/20260816075141.3489194-1-linmag7@gmail.com/T/#t The SILO patches are available here: https://github.com/linmag7/silo/tree/release Code that is not tested or maintained will inevitably deteriorate over time. I hope we can keep sun4m/sun4d support in the mainline kernel. If the lack of testing and general maintenance was the main reason for proposing its removal, I would be happy to help with both. I have plenty of old SPARC32 hardware with various CPU configurations available for testing, and I am willing to assist with maintaining the support in any way I can. Regards, Magnus