From: Michael Ellerman <mpe@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Boqun Feng <boqun.feng@gmail.com>, Ingo Molnar <mingo@redhat.com>,
Waiman Long <longman@redhat.com>,
Anton Blanchard <anton@ozlabs.org>,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH v3 3/6] powerpc: move spinlock implementation to simple_spinlock
Date: Thu, 09 Jul 2020 20:15:51 +1000 [thread overview]
Message-ID: <87a709vvs8.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <20200706043540.1563616-4-npiggin@gmail.com>
Nicholas Piggin <npiggin@gmail.com> writes:
> To prepare for queued spinlocks. This is a simple rename except to update
> preprocessor guard name and a file reference.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
> arch/powerpc/include/asm/simple_spinlock.h | 292 ++++++++++++++++++
> .../include/asm/simple_spinlock_types.h | 21 ++
> arch/powerpc/include/asm/spinlock.h | 285 +----------------
> arch/powerpc/include/asm/spinlock_types.h | 12 +-
> 4 files changed, 315 insertions(+), 295 deletions(-)
> create mode 100644 arch/powerpc/include/asm/simple_spinlock.h
> create mode 100644 arch/powerpc/include/asm/simple_spinlock_types.h
>
> diff --git a/arch/powerpc/include/asm/simple_spinlock.h b/arch/powerpc/include/asm/simple_spinlock.h
> new file mode 100644
> index 000000000000..e048c041c4a9
> --- /dev/null
> +++ b/arch/powerpc/include/asm/simple_spinlock.h
> @@ -0,0 +1,292 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +#ifndef __ASM_SIMPLE_SPINLOCK_H
> +#define __ASM_SIMPLE_SPINLOCK_H
_ASM_POWERPC_SIMPLE_SPINLOCK_H
> +#ifdef __KERNEL__
Shouldn't be necessary.
> +/*
> + * Simple spin lock operations.
> + *
> + * Copyright (C) 2001-2004 Paul Mackerras <paulus@au.ibm.com>, IBM
> + * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
> + * Copyright (C) 2002 Dave Engebretsen <engebret@us.ibm.com>, IBM
> + * Rework to support virtual processors
> + *
> + * Type of int is used as a full 64b word is not necessary.
> + *
> + * (the type definitions are in asm/simple_spinlock_types.h)
> + */
> +#include <linux/irqflags.h>
> +#include <asm/paravirt.h>
> +#ifdef CONFIG_PPC64
> +#include <asm/paca.h>
> +#endif
I don't think paca.h needs a CONFIG_PPC64 guard, it contains one. I know
you're just moving the code, but still nice to cleanup slightly along
the way.
cheers
next prev parent reply other threads:[~2020-07-09 10:13 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-06 4:35 [PATCH v3 0/6] powerpc: queued spinlocks and rwlocks Nicholas Piggin
2020-07-06 4:35 ` [PATCH v3 1/6] powerpc/powernv: must include hvcall.h to get PAPR defines Nicholas Piggin
2020-07-09 10:05 ` Michael Ellerman
2020-07-06 4:35 ` [PATCH v3 2/6] powerpc/pseries: move some PAPR paravirt functions to their own file Nicholas Piggin
2020-07-09 10:11 ` Michael Ellerman
2020-07-06 4:35 ` [PATCH v3 3/6] powerpc: move spinlock implementation to simple_spinlock Nicholas Piggin
2020-07-09 10:15 ` Michael Ellerman [this message]
2020-07-06 4:35 ` [PATCH v3 4/6] powerpc/64s: implement queued spinlocks and rwlocks Nicholas Piggin
2020-07-09 10:20 ` Michael Ellerman
2020-07-09 10:33 ` Peter Zijlstra
2020-07-23 14:37 ` Michal Suchánek
2020-07-06 4:35 ` [PATCH v3 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR Nicholas Piggin
2020-07-09 10:53 ` Michael Ellerman
2020-07-09 11:03 ` Peter Zijlstra
2020-07-09 16:06 ` Waiman Long
2020-07-23 14:00 ` Peter Zijlstra
2020-07-23 18:32 ` Waiman Long
2020-07-23 18:47 ` peterz
2020-07-23 19:04 ` Waiman Long
2020-07-23 19:58 ` peterz
2020-07-23 20:30 ` Segher Boessenkool
2020-07-23 21:58 ` Waiman Long
2020-07-24 8:16 ` Will Deacon
2020-07-24 19:10 ` Waiman Long
2020-07-25 3:02 ` Waiman Long
2020-07-25 17:26 ` Peter Zijlstra
2020-07-25 17:36 ` Waiman Long
2020-07-23 14:09 ` Nicholas Piggin
2020-07-06 4:35 ` [PATCH v3 6/6] powerpc/qspinlock: optimised atomic_try_cmpxchg_lock that adds the lock hint Nicholas Piggin
2020-07-06 18:39 ` [PATCH v3 0/6] powerpc: queued spinlocks and rwlocks Waiman Long
2020-07-07 5:57 ` Nicholas Piggin
2020-07-08 3:33 ` Waiman Long
2020-07-08 5:10 ` Nicholas Piggin
2020-07-08 23:50 ` Waiman Long
2020-07-08 23:58 ` Waiman Long
2020-07-08 8:32 ` Peter Zijlstra
2020-07-08 23:53 ` Waiman Long
2020-07-08 8:41 ` Peter Zijlstra
2020-07-08 23:54 ` Waiman Long
2020-07-09 8:31 ` Peter Zijlstra
2020-07-21 11:20 ` Nicholas Piggin
2020-07-21 11:08 ` Nicholas Piggin
2020-07-21 14:36 ` Waiman Long
2020-07-23 13:30 ` Nicholas Piggin
2020-07-23 14:29 ` Waiman Long
2020-07-23 16:12 ` Nicholas Piggin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87a709vvs8.fsf@mpe.ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=anton@ozlabs.org \
--cc=boqun.feng@gmail.com \
--cc=kvm-ppc@vger.kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=longman@redhat.com \
--cc=mingo@redhat.com \
--cc=npiggin@gmail.com \
--cc=peterz@infradead.org \
--cc=virtualization@lists.linux-foundation.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).