From: Guo Ren <guoren@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Palmer Dabbelt" <palmer@dabbelt.com>,
"Anup Patel" <anup.patel@wdc.com>,
gregkh <gregkh@linuxfoundation.org>,
liush <liush@allwinnertech.com>, "Wei Fu" <wefu@redhat.com>,
"Drew Fustini" <drew@beagleboard.org>,
"Wang Junqiang" <wangjunqiang@iscas.ac.cn>,
"Wei Wu (吴伟)" <lazyparser@gmail.com>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
linux-riscv <linux-riscv@lists.infradead.org>,
linux-csky@vger.kernel.org, "Guo Ren" <guoren@linux.alibaba.com>
Subject: Re: [PATCH 02/13] riscv: Fixup difference with defconfig
Date: Wed, 22 Dec 2021 21:06:37 +0800 [thread overview]
Message-ID: <CAJF2gTQEp0hEousuEyp5cPCa5Remb_8HMZ-BXZ393_z7hbne7g@mail.gmail.com> (raw)
In-Reply-To: <CAK8P3a3m2Mz4Tvu+3cdji6iq_wvFZsYoyKvnaNKTEjE+ivex6A@mail.gmail.com>
On Wed, Dec 22, 2021 at 8:51 PM Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Wed, Dec 22, 2021 at 12:34 PM Guo Ren <guoren@kernel.org> wrote:
> > On Wed, Dec 22, 2021 at 1:09 AM Arnd Bergmann <arnd@arndb.de> wrote:
> > > On Tue, Dec 21, 2021 at 5:35 PM <guoren@kernel.org> wrote:
> > > If the intention is to keep them in sync, maybe use a fragment for 32-bit
> > > mode, like powerpc or mips do.
> >
> > Some people are familiar with "make rv32_defconfig". There has a
> > 32-bit.config fragment config in arch/riscv/configs/.
> >
> > I've tested with:
> >
> > make ARCH=riscv CROSS_COMPILE=riscv32-buildroot-linux-gnu-
> > EXTRA_CFLAGS+=-g O=../build-rv32/ defconfig 32-bit.config
> >
> > The above is tested Okay, do you mean we should delete rv32_defconfig?
> > I think it's another topic, I just want them the same in "compat"
> > patchset.
>
> I think what you can do is to add rv32_defconfig as a target in
> arch/riscv/Makefile the same way as rv32_randconfig, and then
> delete the other file, that will keep the existing process working
> for any existing users.
Good idea, I would try.
>
> Given that there are no specific rv32 SoC implementations supported
> by the kernel today (other than SOC_VIRT), the number of users
> would be close to zero anyway.
I really agree with you, but we still need the rv32 user mode
ecosystem for memory footprint.
>
> Arnd
--
Best Regards
Guo Ren
ML: https://lore.kernel.org/linux-csky/
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next prev parent reply other threads:[~2021-12-22 13:07 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 16:35 [PATCH 00/13] riscv: compat: Add COMPAT mode support for rv64 guoren
2021-12-21 16:35 ` [PATCH 01/13] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT guoren
2021-12-21 17:08 ` Arnd Bergmann
2021-12-22 11:16 ` Guo Ren
2021-12-22 11:24 ` Arnd Bergmann
2021-12-24 6:52 ` Christoph Hellwig
2021-12-21 16:35 ` [PATCH 02/13] riscv: Fixup difference with defconfig guoren
2021-12-21 17:09 ` Arnd Bergmann
2021-12-22 11:34 ` Guo Ren
2021-12-22 11:44 ` Arnd Bergmann
2021-12-22 13:06 ` Guo Ren [this message]
2021-12-22 13:30 ` Arnd Bergmann
2021-12-23 2:12 ` Guo Ren
2021-12-21 16:35 ` [PATCH 03/13] riscv: compat: Add basic compat date type implementation guoren
2021-12-21 17:12 ` Arnd Bergmann
2021-12-22 12:03 ` Guo Ren
2021-12-22 12:46 ` Arnd Bergmann
2021-12-26 15:33 ` Guo Ren
2021-12-24 6:53 ` Christoph Hellwig
2021-12-24 9:28 ` Guo Ren
2021-12-21 16:35 ` [PATCH 04/13] riscv: compat: Re-implement TASK_SIZE for COMPAT_32BIT guoren
2021-12-21 16:35 ` [PATCH 05/13] riscv: compat: syscall: Add compat_sys_call_table implementation guoren
2021-12-21 17:15 ` Arnd Bergmann
2021-12-22 12:43 ` Guo Ren
2021-12-22 13:21 ` Arnd Bergmann
2021-12-22 14:00 ` Arnd Bergmann
2021-12-24 9:42 ` Guo Ren
2021-12-21 16:35 ` [PATCH 06/13] riscv: compat: syscall: Add entry.S implementation guoren
2021-12-21 16:35 ` [PATCH 07/13] riscv: compat: Add elf.h implementation guoren
2021-12-21 16:35 ` [PATCH 08/13] riscv: compat: Add COMPAT Kbuild skeletal support guoren
2021-12-21 17:21 ` Arnd Bergmann
2021-12-22 12:06 ` Guo Ren
2021-12-24 6:54 ` Christoph Hellwig
2021-12-21 16:35 ` [PATCH 09/13] riscv: compat: init: Add hw-cap detect in setup_arch guoren
2021-12-21 16:35 ` [PATCH 10/13] riscv: compat: vdso: Add rv32 VDSO base code implementation guoren
2021-12-21 16:35 ` [PATCH 11/13] riscv: compat: vdso: Add setup additional pages implementation guoren
2021-12-21 16:35 ` [PATCH 12/13] riscv: compat: signal: Add rt_frame implementation guoren
2021-12-21 16:35 ` [PATCH 13/13] riscv: compat: ptrace: Add compat_arch_ptrace implement guoren
2021-12-21 17:38 ` [PATCH 00/13] riscv: compat: Add COMPAT mode support for rv64 Arnd Bergmann
2021-12-22 12:59 ` Guo Ren
2021-12-22 13:29 ` Arnd Bergmann
2021-12-26 8:22 ` Jisheng Zhang
2021-12-26 12:38 ` Guo Ren
2021-12-26 20:31 ` Arnd Bergmann
2021-12-27 1:16 ` Guo Ren
2021-12-27 2:29 ` Jessica Clarke
2021-12-28 10:45 ` Guo Ren
2021-12-22 12:00 ` Guo Ren
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