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Fri, 2 Feb 2024 02:28:05 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.11.0-alpha0-144-ge5821d614e-fm-20240125.002-ge5821d61 Precedence: bulk X-Mailing-List: linux-hexagon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <38ad9807-a298-44f6-88eb-4fb8047eafbe@app.fastmail.com> In-Reply-To: References: <20240131055159.2506-1-yan.y.zhao@intel.com> <5e55b5c0-6c8d-45b4-ac04-cf694bcb08d3@app.fastmail.com> <9f27c23b-ea8b-443c-b09c-03ecaa210cd5@app.fastmail.com> Date: Fri, 02 Feb 2024 08:27:44 +0100 From: "Arnd Bergmann" To: "Geert Uytterhoeven" Cc: "Yan Zhao" , "Linus Walleij" , guoren , "Brian Cain" , "Jonas Bonn" , "Stefan Kristiansson" , "Stafford Horne" , Linux-Arch , linux-kernel@vger.kernel.org, "linux-csky@vger.kernel.org" , linux-hexagon@vger.kernel.org, "linux-openrisc@vger.kernel.org" Subject: Re: [PATCH 0/4] apply page shift to PFN instead of VA in pfn_to_virt Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable On Thu, Feb 1, 2024, at 11:46, Geert Uytterhoeven wrote: > Hi Arnd, > > On Thu, Feb 1, 2024 at 11:11=E2=80=AFAM Arnd Bergmann = wrote: >> I think it's fair to assume we won't need asm-generic/page.h any >> more, as we likely won't be adding new NOMMU architectures. > > So you think riscv-nommu (k210) was the last one we will ever see? Yes. We've already removed half of the nommu architectures (blackfin, avr32, h8300, m32r, microblaze-nommu) over the past couple of years, and the remaining ones are pretty much only there to support existing users. The only platform one that I see getting real work is esp32 [1], but that is not a new architecture. Arnd [1] https://github.com/jcmvbkbc/linux-xtensa/tree/xtensa-6.8-rc2-esp32