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Message-ID: <CAJF2gTRHGkHnQZNUi6J+xsst0-8CDJxp=79tPj=i_1s2SiW7Hg@mail.gmail.com>
Date: Sat, 5 Aug 2023 09:31:23 +0800
From: Guo Ren <guoren@...nel.org>
To: Andrew Jones <ajones@...tanamicro.com>
Cc: Haibo Xu <xiaobo55x@...il.com>, Haibo Xu <haibo1.xu@...el.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Paolo Bonzini <pbonzini@...hat.com>,
Shuah Khan <shuah@...nel.org>,
Anup Patel <anup@...infault.org>,
Atish Patra <atishp@...shpatra.org>,
Sean Christopherson <seanjc@...gle.com>,
Vipin Sharma <vipinsh@...gle.com>,
Marc Zyngier <maz@...nel.org>,
Colton Lewis <coltonlewis@...gle.com>,
Andrew Jones <andrew.jones@...ux.dev>,
Vishal Annapurve <vannapurve@...gle.com>,
linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
kvm@...r.kernel.org, linux-kselftest@...r.kernel.org,
kvm-riscv@...ts.infradead.org
Subject: Re: [PATCH 1/4] tools: riscv: Add header file csr.h
On Thu, Aug 3, 2023 at 3:44 PM Andrew Jones <ajones@...tanamicro.com> wrote:
>
> On Wed, Aug 02, 2023 at 11:13:34PM -0400, Guo Ren wrote:
> > On Wed, Aug 02, 2023 at 10:05:00AM +0800, Haibo Xu wrote:
> > > On Fri, Jul 28, 2023 at 5:43 PM Andrew Jones <ajones@...tanamicro.com> wrote:
> > > >
> > > > On Thu, Jul 27, 2023 at 03:20:05PM +0800, Haibo Xu wrote:
> > > > > Borrow some of the csr definitions and operations from kernel's
> > > > > arch/riscv/include/asm/csr.h to tools/ for riscv.
> > > >
> > > > You should copy the entire file verbatim.
> > > >
> > >
> > > Ok, will copy all the definitions in the original csr.h
> > Why not include the original one? Maintain the one csr.h is more
> > comfortable.
>
> selftests and other userspace tools can't always compile when including a
> kernel header without modifying the header in some way. Rather than
> polluting headers with #ifdeffery, the practice has been to copy necessary
> headers to tools/include and modify if necessary.
Okay, got it.
>
> Thanks,
> drew
--
Best Regards
Guo Ren
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