From: Guo Ren <guoren@kernel.org>
To: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: Tycho Andersen <tycho@tycho.ws>,
Albert Ou <aou@eecs.berkeley.edu>, Nick Hu <nickhu@andestech.com>,
Anup Patel <anup@brainfault.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-csky@vger.kernel.org, Guo Ren <guoren@linux.alibaba.com>,
Zong Li <zong.li@sifive.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Greentime Hu <greentime.hu@sifive.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-riscv <linux-riscv@lists.infradead.org>
Subject: Re: [PATCH V2 0/3] riscv: Enable LOCKDEP
Date: Fri, 10 Jul 2020 07:15:31 +0800 [thread overview]
Message-ID: <CAJF2gTRQkEM7zR06GYOGhT_Aerhc9vRNaxsDZ-jVCHyEodnXcg@mail.gmail.com> (raw)
In-Reply-To: <mhng-af022fcc-7dce-4d1b-9204-d31241538412@palmerdabbelt-glaptop1>
Thank you, Palmer
On Fri, Jul 10, 2020 at 6:06 AM Palmer Dabbelt <palmerdabbelt@google.com> wrote:
>
> On Sat, 27 Jun 2020 06:57:05 PDT (-0700), guoren@kernel.org wrote:
> > From: Guo Ren <guoren@linux.alibaba.com>
> >
> > Lockdep is needed by proving the spinlocks and rwlocks. To support it,
> > we need to add TRACE_IRQFLAGS codes in kernel/entry.S. These patches
> > follow Documentation/irqflags-tracing.txt.
> >
> > Fixup 2 bugs that block the lockdep implementation.
> >
> > ---
> > Changes in v2
> > - Remove sX regs recovery codes which are unnecessary, because
> > callee will handle them. Thx Greentime :)
> >
> > - Move "restore a0 - a7" to handle_syscall, but if _TIF_SYSCALL_WORK
> > is set, "restore a1 - a7" is still duplicated. I prefer a C wrapper
> > for syscall.
> >
> > Guo Ren (2):
> > riscv: Fixup static_obj() fail
> > riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT
> >
> > Zong Li (1):
> > riscv: Fixup lockdep_assert_held with wrong param cpu_running
> >
> > arch/riscv/Kconfig | 3 +++
> > arch/riscv/kernel/entry.S | 33 ++++++++++++++++++++++++++++++++-
> > arch/riscv/kernel/smpboot.c | 1 -
> > arch/riscv/kernel/vmlinux.lds.S | 2 +-
> > 4 files changed, 36 insertions(+), 3 deletions(-)
>
> These are on for-next. As far as I can tell lockdep is working, but I'm just
> doing some simple boot tests.
>
> Thanks!
--
Best Regards
Guo Ren
ML: https://lore.kernel.org/linux-csky/
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prev parent reply other threads:[~2020-07-09 23:15 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-27 13:57 [PATCH V2 0/3] riscv: Enable LOCKDEP guoren
2020-06-27 13:57 ` [PATCH V2 1/3] riscv: Fixup static_obj() fail guoren
2020-09-11 20:45 ` Aurelien Jarno
2020-09-12 2:39 ` Guo Ren
2020-09-14 10:38 ` Aurelien Jarno
2020-09-24 7:36 ` Andreas Schwab
2020-09-24 16:19 ` Guo Ren
2020-09-29 18:51 ` Aurelien Jarno
2020-10-05 19:14 ` Atish Patra
2020-10-06 16:46 ` Guo Ren
2020-10-06 20:38 ` Atish Patra
2020-10-07 14:45 ` Guo Ren
2020-10-05 8:25 ` Andreas Schwab
2020-10-05 16:39 ` Palmer Dabbelt
2020-10-05 18:40 ` Andreas Schwab
2020-10-05 19:45 ` Palmer Dabbelt
2020-10-05 21:12 ` Atish Patra
2020-10-05 21:17 ` Palmer Dabbelt
2020-10-06 16:55 ` Guo Ren
2020-06-27 13:57 ` [PATCH V2 2/3] riscv: Fixup lockdep_assert_held with wrong param cpu_running guoren
2020-09-29 22:12 ` Atish Patra
2020-06-27 13:57 ` [PATCH V2 3/3] riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT guoren
2020-07-09 22:06 ` [PATCH V2 0/3] riscv: Enable LOCKDEP Palmer Dabbelt
2020-07-09 23:15 ` Guo Ren [this message]
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