From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Guo Ren <guoren@kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
tglx@linutronix.de
Subject: Re: [PATCH 06/34] csky: Use CONFIG_PREEMPTION
Date: Wed, 16 Oct 2019 09:39:06 +0200 [thread overview]
Message-ID: <20191016073905.yv4xqoovrdrnrbp7@linutronix.de> (raw)
In-Reply-To: <CAJF2gTSVxgc5kw22dfotoHF91HxyTKC4ETYLTskEfyn3rf=kCw@mail.gmail.com>
On 2019-10-16 07:29:34 [+0800], Guo Ren wrote:
> Could CONFIG_PREEMPT_RT be supported in csky ? Any arch backend porting ?
It could. HIGH_RES_TIMERS is useful and IRQ_FORCED_THREADING is
required. You already have PREEMPT(ION) which is good. Then you would
have to try and my guess would be that some of spinlock_t vs
raw_spinlock_t could require changes but we should have lockdep support
for that which would make things easier.
Sebastian
next prev parent reply other threads:[~2019-10-16 7:39 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-15 19:17 [PATCH 00/34] Treewide: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-15 19:17 ` [PATCH 01/34] ARM: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 02/34] arm64: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 03/34] powerpc: " Sebastian Andrzej Siewior
2019-10-16 4:57 ` Christophe Leroy
2019-10-16 7:48 ` Sebastian Andrzej Siewior
2019-10-16 9:33 ` Michael Ellerman
2019-10-16 9:35 ` Sebastian Andrzej Siewior
2019-10-24 13:59 ` [PATCH 03/34 v2] " Sebastian Andrzej Siewior
2019-10-24 16:04 ` [PATCH 03/34 v3] " Sebastian Andrzej Siewior
2019-11-12 12:38 ` Michael Ellerman
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 04/34] ARC: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 05/34] c6x: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 06/34] csky: " Sebastian Andrzej Siewior
2019-10-15 23:29 ` Guo Ren
2019-10-16 7:39 ` Sebastian Andrzej Siewior [this message]
2019-10-16 23:31 ` Guo Ren
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 07/34] h8300: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 08/34] hexagon: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 09/34] ia64: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 10/34] m68k/coldfire: " Sebastian Andrzej Siewior
2019-10-16 0:50 ` Greg Ungerer
2019-10-16 7:55 ` Sebastian Andrzej Siewior
2019-10-16 12:14 ` Greg Ungerer
2019-10-15 19:17 ` [PATCH 11/34] microblaze: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 12/34] MIPS: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 13/34] nds32: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 14/34] nios2: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 15/34] parisc: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 16/34] riscv: " Sebastian Andrzej Siewior
2019-10-15 20:26 ` Paul Walmsley
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 17/34] s390: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 18/34] sh: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 19/34] sparc: " Sebastian Andrzej Siewior
2019-10-15 20:34 ` David Miller
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 20/34] xtensa: " Sebastian Andrzej Siewior
2019-10-15 19:43 ` Max Filippov
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 21/34] net: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, net: Use CONFIG_PREEMPTION.patch tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 22/34] xen: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-16 5:10 ` Jürgen Groß
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 23/34] fs: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 24/34] btrfs: " Sebastian Andrzej Siewior
2019-10-15 20:16 ` David Sterba
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 25/34] mm: " Sebastian Andrzej Siewior
2019-10-16 14:38 ` Christopher Lameter
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 26/34] Documentation/RCU: Use CONFIG_PREEMPTION where appropriate Sebastian Andrzej Siewior
2019-10-16 4:13 ` Paul E. McKenney
2019-10-16 7:31 ` Sebastian Andrzej Siewior
2019-10-17 3:06 ` Paul E. McKenney
2019-10-15 19:18 ` [PATCH 27/34] rcu: " Sebastian Andrzej Siewior
2019-10-16 4:14 ` Paul E. McKenney
2019-10-15 19:18 ` [PATCH 28/34] drm/i810: Refer to `PREEMPTION' in comment Sebastian Andrzej Siewior
2019-10-16 19:58 ` Daniel Vetter
2019-10-15 19:18 ` [PATCH 29/34] backlight/jornada720: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-17 11:37 ` Daniel Thompson
2019-10-17 13:23 ` Lee Jones
2019-10-17 13:28 ` Sebastian Andrzej Siewior
2019-10-18 7:38 ` Lee Jones
2019-10-18 7:40 ` Lee Jones
2019-10-15 19:18 ` [PATCH 30/34] media: cec-gpio: " Sebastian Andrzej Siewior
2019-10-15 19:53 ` Hans Verkuil
2019-10-16 11:51 ` Hans Verkuil
2019-10-16 12:02 ` Sebastian Andrzej Siewior
2019-10-16 12:24 ` Hans Verkuil
2019-10-15 19:18 ` [PATCH 31/34] locking: " Sebastian Andrzej Siewior
2019-10-16 8:18 ` Peter Zijlstra
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Sebastian Andrzej Siewior
2019-10-15 19:18 ` [PATCH 32/34] lib: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/core: " tip-bot2 for Sebastian Andrzej Siewior
2019-10-15 19:18 ` [PATCH 33/34] tracing: " Sebastian Andrzej Siewior
2019-10-15 19:24 ` Steven Rostedt
2019-10-15 19:18 ` [PATCH 34/34] workqueue: Use PREEMPTION Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Sebastian Andrzej Siewior
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