From: Palmer Dabbelt <palmer@dabbelt.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: chenhuacai@gmail.com, Arnd Bergmann <arnd@arndb.de>,
chenhuacai@loongson.cn, luto@kernel.org, tglx@linutronix.de,
peterz@infradead.org, akpm@linux-foundation.org,
airlied@linux.ie, corbet@lwn.net,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-arch@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, lixuefeng@loongson.cn,
siyanteng@loongson.cn, guoren@kernel.org, kernel@xen0n.name,
jiaxun.yang@flygoat.com, guoren@linux.alibaba.com
Subject: Re: [PATCH V9 16/24] LoongArch: Add misc common routines
Date: Sat, 30 Apr 2022 06:22:32 -0700 (PDT) [thread overview]
Message-ID: <mhng-aac79f77-a392-42cd-a885-247e7625046c@palmer-mbp2014> (raw)
In-Reply-To: <CAK8P3a1Cnp-SNiXnSbnUdbw9jC+aT1TxEjckK2jFYgwT-CSpcw@mail.gmail.com>
On Sat, 30 Apr 2022 03:41:59 PDT (-0700), Arnd Bergmann wrote:
> On Sat, Apr 30, 2022 at 12:00 PM Huacai Chen <chenhuacai@gmail.com> wrote:
>>
>> On Sat, Apr 30, 2022 at 5:50 PM Arnd Bergmann <arnd@arndb.de> wrote:
>> >
>> > On Sat, Apr 30, 2022 at 11:05 AM Huacai Chen <chenhuacai@loongson.cn> wrote:
>> >
>> > > +unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int size)
>> > > +{
>> > > + u32 old32, mask, temp;
>> > > + volatile u32 *ptr32;
>> > > + unsigned int shift;
>> > > +
>> > > + /* Check that ptr is naturally aligned */
>> >
>> > As discussed, please remove this function and all the references to it.
>>
>> It seems that "generic ticket spinlock" hasn't been merged in 5.18?
>
> No, but we can merge it together with the loongarch architecture for 5.19.
>
> I suggested you coordinate with Guo Ren and Palmer Dabbelt about how
> to best merge it. The latest version was pasted two weeks ago [1], and
> it sounds like there are only minor issues to work out and that I can merge
> v4 into the asm-generic tree before merging the loongarch code in the
> same place.
>
> Arnd
>
> [1] https://lore.kernel.org/lkml/20220414220214.24556-1-palmer@rivosinc.com/
I can just send another version, IIRC it was just that discussion about
the memory barrier and there's already prototype code so it shouldn't be
too bad. I was hoping to do it sooner, sorry.
next prev parent reply other threads:[~2022-04-30 13:22 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-30 9:04 [PATCH V9 00/22] arch: Add basic LoongArch support Huacai Chen
2022-04-30 9:04 ` [PATCH V9 01/24] Documentation: LoongArch: Add basic documentations Huacai Chen
2022-05-01 7:48 ` Bagas Sanjaya
2022-05-01 8:55 ` Huacai Chen
2022-05-01 9:32 ` WANG Xuerui
2022-05-01 10:17 ` Huacai Chen
2022-04-30 9:04 ` [PATCH V9 02/24] Documentation/zh_CN: Add basic LoongArch documentations Huacai Chen
2022-05-01 9:38 ` WANG Xuerui
2022-04-30 9:04 ` [PATCH V9 03/24] LoongArch: Add elf-related definitions Huacai Chen
2022-05-01 9:41 ` WANG Xuerui
2022-05-01 14:27 ` Huacai Chen
2022-04-30 9:04 ` [PATCH V9 04/24] LoongArch: Add writecombine support for drm Huacai Chen
2022-04-30 9:04 ` [PATCH V9 05/24] LoongArch: Add build infrastructure Huacai Chen
2022-05-01 10:09 ` WANG Xuerui
2022-05-01 12:41 ` Huacai Chen
2022-05-01 15:43 ` Xi Ruoyao
2022-04-30 9:05 ` [PATCH V9 06/24] LoongArch: Add CPU definition headers Huacai Chen
2022-05-01 11:05 ` WANG Xuerui
2022-05-01 15:07 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 07/24] LoongArch: Add atomic/locking headers Huacai Chen
2022-05-01 11:16 ` WANG Xuerui
2022-05-01 13:16 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 08/24] LoongArch: Add other common headers Huacai Chen
2022-05-01 11:39 ` WANG Xuerui
2022-05-01 14:26 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 09/24] LoongArch: Add boot and setup routines Huacai Chen
2022-04-30 9:05 ` [PATCH V9 10/24] LoongArch: Add exception/interrupt handling Huacai Chen
2022-05-01 16:27 ` Xi Ruoyao
2022-05-01 17:08 ` Xi Ruoyao
2022-05-02 0:01 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 11/24] LoongArch: Add process management Huacai Chen
2022-04-30 9:05 ` [PATCH V9 12/24] LoongArch: Add memory management Huacai Chen
2022-04-30 9:05 ` [PATCH V9 13/24] LoongArch: Add system call support Huacai Chen
2022-04-30 9:44 ` Arnd Bergmann
2022-04-30 10:05 ` Huacai Chen
2022-04-30 10:34 ` Arnd Bergmann
2022-05-07 12:11 ` Christian Brauner
2022-05-09 10:00 ` Christian Brauner
2022-05-11 7:11 ` Arnd Bergmann
2022-05-11 21:12 ` [musl] " Rich Felker
2022-05-12 7:21 ` Arnd Bergmann
2022-05-12 12:11 ` Rich Felker
2022-05-11 16:17 ` Florian Weimer
2022-04-30 9:05 ` [PATCH V9 14/24] LoongArch: Add signal handling support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 15/24] LoongArch: Add elf and module support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 16/24] LoongArch: Add misc common routines Huacai Chen
2022-04-30 9:50 ` Arnd Bergmann
2022-04-30 10:00 ` Huacai Chen
2022-04-30 10:41 ` Arnd Bergmann
2022-04-30 13:22 ` Palmer Dabbelt [this message]
2022-05-01 5:12 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 17/24] LoongArch: Add some library functions Huacai Chen
2022-05-01 10:55 ` Guo Ren
2022-05-01 12:18 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 18/24] LoongArch: Add PCI controller support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 19/24] LoongArch: Add VDSO and VSYSCALL support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 20/24] LoongArch: Add efistub booting support Huacai Chen
2022-04-30 9:56 ` Arnd Bergmann
2022-04-30 10:02 ` Huacai Chen
2022-05-03 7:23 ` Ard Biesheuvel
2022-05-05 9:59 ` Huacai Chen
2022-05-06 8:14 ` Ard Biesheuvel
2022-05-06 11:26 ` WANG Xuerui
2022-05-06 11:41 ` Arnd Bergmann
2022-05-06 13:20 ` Huacai Chen
2022-05-13 19:32 ` Arnd Bergmann
2022-05-14 2:27 ` Huacai Chen
2022-04-30 9:05 ` [PATCH V9 21/24] LoongArch: Add zboot (compressed kernel) support Huacai Chen
2022-04-30 10:07 ` Arnd Bergmann
2022-05-01 5:22 ` Huacai Chen
2022-05-01 6:35 ` Russell King (Oracle)
2022-05-01 8:46 ` Huacai Chen
2022-05-01 11:28 ` Russell King (Oracle)
2022-05-01 8:33 ` Arnd Bergmann
2022-05-01 23:36 ` Ard Biesheuvel
2022-04-30 9:05 ` [PATCH V9 22/24] LoongArch: Add multi-processor (SMP) support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 23/24] LoongArch: Add Non-Uniform Memory Access (NUMA) support Huacai Chen
2022-04-30 9:05 ` [PATCH V9 24/24] LoongArch: Add Loongson-3 default config file Huacai Chen
2022-05-01 8:19 ` [PATCH V9 00/22] arch: Add basic LoongArch support Bagas Sanjaya
2022-05-01 8:55 ` Huacai Chen
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