linux-kernel - Re: [PATCH V3 14/22] LoongArch: Add signal handling support

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Message-ID: <CAK8P3a0xghZKNBWbZ-qUWQVKyus4xqJMhSV_baQO7zKDoTtGQg@mail.gmail.com>
Date:   Sun, 19 Sep 2021 11:58:59 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Huacai Chen <chenhuacai@...il.com>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Airlie <airlied@...ux.ie>,
        Jonathan Corbet <corbet@....net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Yanteng Si <siyanteng@...ngson.cn>,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [PATCH V3 14/22] LoongArch: Add signal handling support

On Sat, Sep 18, 2021 at 9:12 AM Huacai Chen <chenhuacai@...il.com> wrote:
> On Sat, Sep 18, 2021 at 5:10 AM Eric W. Biederman <ebiederm@...ssion.com> wrote:
> > For example does LoongArch have a version without built in floating
> > point support?
>
> Some of these structures seems need rethinking, But we really have
> LoongArch-based MCUs now (no FP, no SMP, and even no MMU).

NOMMU Linux is kind-of on the way out as interest is fading, so I hope you
don't plan on supporting this in the future.

Do you expect to see future products with MMU but no FP or no SMP?

        Arnd