From: catalin.marinas@arm•com (Catalin Marinas)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 6/6] arm64: Emulate CP15 Barrier instructions
Date: Thu, 28 Aug 2014 10:42:14 +0100 [thread overview]
Message-ID: <20140828094214.GB31111@arm.com> (raw)
In-Reply-To: <9hhzjepc5z1.fsf@arm.com>
On Thu, Aug 28, 2014 at 10:34:58AM +0100, Punit Agrawal wrote:
> Catalin Marinas <catalin.marinas@arm•com> writes:
>
> > On Tue, Aug 26, 2014 at 11:28:50AM +0100, Punit Agrawal wrote:
> >> diff --git a/arch/arm64/kernel/v7_obsolete.c b/arch/arm64/kernel/v7_obsolete.c
> >> index e9427cb..ed77889 100644
> >> --- a/arch/arm64/kernel/v7_obsolete.c
> >> +++ b/arch/arm64/kernel/v7_obsolete.c
> >> @@ -227,6 +227,94 @@ static void __init swp_emulation_init(void)
> >> pr_notice("Registered SWP/SWPB emulation handler\n");
> >> }
> >>
> >> +static atomic_t cp15_barrier_count;
> >
> > Should we add counters for each barrier type? It may be more
> > informative.
>
> Arnd proposed to use trace points instead of counters. I can emit
> different trace points for the different barrier types.
This would work as well.
--
Catalin
prev parent reply other threads:[~2014-08-28 9:42 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-26 10:28 [PATCH 0/6] Legacy instruction emulation for arm64 Punit Agrawal
2014-08-26 10:28 ` [PATCH 1/6] arm: Fix in-correct barrier usage in SWP{B} emulation Punit Agrawal
2014-08-26 13:04 ` Will Deacon
2014-08-27 16:40 ` Catalin Marinas
2014-08-27 17:05 ` Punit Agrawal
2014-08-26 10:28 ` [PATCH 2/6] arm64: Create arch debugfs directory Punit Agrawal
2014-08-26 10:28 ` [PATCH 3/6] arm64: Add support for hooks to handle undefined instructions Punit Agrawal
2014-08-26 13:13 ` Will Deacon
2014-08-26 14:21 ` Ard Biesheuvel
2014-08-26 14:30 ` Will Deacon
2014-08-27 16:47 ` Catalin Marinas
2014-08-27 16:51 ` Will Deacon
2014-08-26 14:56 ` Punit Agrawal
2014-08-26 18:14 ` Will Deacon
2014-08-27 16:58 ` Catalin Marinas
2014-08-26 10:28 ` [PATCH 4/6] arm64: Add AArch32 instruction set condition code checks Punit Agrawal
2014-08-26 10:28 ` [PATCH 5/6] arm64: Port SWP/SWPB emulation support from arm Punit Agrawal
2014-08-26 11:32 ` Arnd Bergmann
2014-08-26 12:25 ` Will Deacon
2014-08-26 13:26 ` Arnd Bergmann
2014-08-26 13:56 ` Will Deacon
2014-08-27 17:35 ` Punit Agrawal
2014-08-27 18:30 ` Arnd Bergmann
2014-08-28 10:21 ` Punit Agrawal
2014-08-27 17:29 ` Catalin Marinas
2014-08-26 10:28 ` [PATCH 6/6] arm64: Emulate CP15 Barrier instructions Punit Agrawal
2014-08-26 13:16 ` Will Deacon
2014-08-27 17:40 ` Catalin Marinas
2014-08-28 9:34 ` Punit Agrawal
2014-08-28 9:42 ` Catalin Marinas [this message]
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=20140828094214.GB31111@arm.com \
--to=catalin.marinas@arm$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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