linux-kernel - Re: [PATCH V11 00/22] arch: Add basic LoongArch support

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Date:   Thu, 19 May 2022 01:18:53 +0800
From:   Huacai Chen <chenhuacai@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Huacai Chen <chenhuacai@...ngson.cn>,
        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>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Yanteng Si <siyanteng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH V11 00/22] arch: Add basic LoongArch support

Hi, Arnd,

On Wed, May 18, 2022 at 9:42 PM Arnd Bergmann <arnd@...db.de> wrote:
>
> On Wed, May 18, 2022 at 10:25 AM Huacai Chen <chenhuacai@...ngson.cn> wrote:
> >
> > LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V.
> > LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit
> > version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its
> > boot protocol LoongArch-specific interrupt controllers (similar to APIC)
> > are already added in the next revision of ACPI Specification (current
> > revision is 6.4).
> >
> > This patchset is adding basic LoongArch support in mainline kernel, we
> > can see a complete snapshot here:
> > https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next
>
> Stephen, can you add this branch to the linux-next tree?
>
> I see there are still comments coming in, but at some point this has
> to just be considered good enough that any further changes can be addressed
> with patches on top rather than rebasing.
>
> > V10 -> V11:
> > 1, Rebased on asm-generic tree;
>
> I was expecting that you'd base this on just the spinlock changes from Palmer's
> tree that are part of the asm-generic tree rather than all of what I have.
>
> Can you rebase it once more? If there are conflicts against the h8300 removal
> series that is also in asm-generic, leaving it on top of that may be
> easier though.
Thank you very much, I have rebased the below tree on asm-generic
tree's spinlock commit 9282d0996936c5fbf877c0d096a3feb45 again, and
fixed some small problems from Eric and WANG Xuerui's comments in V11.
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next

Huacai
>
>         Arnd