From: Tony Lindgren <tony@atomide.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: v.narang@samsung.com, a.sahrawat@samsung.com,
Andrew Morton <akpm@linux-foundation.org>,
Marc Zyngier <maz@kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Valentin Schneider <valentin.schneider@arm.com>,
Dmitry Safonov <0x7f454c46@gmail.com>,
Maninder Singh <maninder1.s@samsung.com>,
Thomas Gleixner <tglx@linutronix.de>,
Nathan Huckleberry <nhuck@google.com>,
Will Deacon <will@kernel.org>, Jian Cai <caij2003@gmail.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 2/3] arm: introduce IRQ stacks
Date: Tue, 10 Nov 2020 14:04:22 +0200 [thread overview]
Message-ID: <20201110120422.GE26857@atomide.com> (raw)
In-Reply-To: <CAK8P3a3dZMnEV-Sg_ep6_dQ3XEf73fEpCF0T03255KxMrJZH8g@mail.gmail.com>
* Arnd Bergmann <arnd@kernel.org> [201110 10:04]:
> On Tue, Nov 10, 2020 at 10:19 AM Tony Lindgren <tony@atomide.com> wrote:
> > * Arnd Bergmann <arnd@kernel.org> [201109 19:10]:
> > > On Mon, Nov 9, 2020 at 3:45 PM Tony Lindgren <tony@atomide.com> wrote:
> > >
> > > I know it works, my point was that I'm not sure anyone cares
> > > any more ;-)
> >
> > Well for example whatever Linux running ARMv6 LTE modems out there might
> > need to be supported for quite some time. Not sure how many of them are
> > able to update kernels though. Certainly network security related issues
> > would be a good reason to update the kernels.
>
> While I agree they should update their kernels, I suspect none of those
> modems do. I am however certain that none of them are running an
> SMP-enabled multiplatform kernel on an ARM1136r0!
Nope, AFAIK all the SMP parts are ARMv6K :)
> Are these actually ARMv6? Most ARM11 cores you'd come across
> in practice are ARMv6K (ARM1136r1, ARM1167, ARM11MPCore),
> in particular every SoC that has any mainline support except for
> the ARM1136r0 based OMAP2 and i.MX3.
I've been only using smp_on_up for the ARMv6 ARM1136r0 variants
for omap2, no SMP on those.
Regards,
Tony
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Tony Lindgren <tony@atomide.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Russell King - ARM Linux admin <linux@armlinux.org.uk>,
v.narang@samsung.com, a.sahrawat@samsung.com,
Marc Zyngier <maz@kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
Nick Desaulniers <ndesaulniers@google.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Nathan Huckleberry <nhuck@google.com>,
Jian Cai <caij2003@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Dmitry Safonov <0x7f454c46@gmail.com>,
Maninder Singh <maninder1.s@samsung.com>,
Andrew Morton <akpm@linux-foundation.org>,
Will Deacon <will@kernel.org>,
Valentin Schneider <valentin.schneider@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 2/3] arm: introduce IRQ stacks
Date: Tue, 10 Nov 2020 14:04:22 +0200 [thread overview]
Message-ID: <20201110120422.GE26857@atomide.com> (raw)
In-Reply-To: <CAK8P3a3dZMnEV-Sg_ep6_dQ3XEf73fEpCF0T03255KxMrJZH8g@mail.gmail.com>
* Arnd Bergmann <arnd@kernel.org> [201110 10:04]:
> On Tue, Nov 10, 2020 at 10:19 AM Tony Lindgren <tony@atomide.com> wrote:
> > * Arnd Bergmann <arnd@kernel.org> [201109 19:10]:
> > > On Mon, Nov 9, 2020 at 3:45 PM Tony Lindgren <tony@atomide.com> wrote:
> > >
> > > I know it works, my point was that I'm not sure anyone cares
> > > any more ;-)
> >
> > Well for example whatever Linux running ARMv6 LTE modems out there might
> > need to be supported for quite some time. Not sure how many of them are
> > able to update kernels though. Certainly network security related issues
> > would be a good reason to update the kernels.
>
> While I agree they should update their kernels, I suspect none of those
> modems do. I am however certain that none of them are running an
> SMP-enabled multiplatform kernel on an ARM1136r0!
Nope, AFAIK all the SMP parts are ARMv6K :)
> Are these actually ARMv6? Most ARM11 cores you'd come across
> in practice are ARMv6K (ARM1136r1, ARM1167, ARM11MPCore),
> in particular every SoC that has any mainline support except for
> the ARM1136r0 based OMAP2 and i.MX3.
I've been only using smp_on_up for the ARMv6 ARM1136r0 variants
for omap2, no SMP on those.
Regards,
Tony
next prev parent reply other threads:[~2020-11-10 12:05 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20201008071628epcas5p24d196a6023a47a3b0bfa7b7f231ec811@epcas5p2.samsung.com>
2020-10-08 7:15 ` [PATCH 0/3] IRQ stack support for ARM Maninder Singh
2020-10-08 7:15 ` Maninder Singh
2020-10-08 7:15 ` [PATCH 1/3] arm: introduce self pointer in thread info Maninder Singh
2020-10-08 7:15 ` Maninder Singh
2020-10-08 7:15 ` [PATCH 2/3] arm: introduce IRQ stacks Maninder Singh
2020-10-08 7:15 ` Maninder Singh
[not found] ` <CAK8P3a2RYeNiTy9QmwFVKtFifXxWc9XfAT6ThPoSH9wGYsKGpA@mail.gmail.com>
2020-10-21 12:42 ` Arnd Bergmann
2020-10-21 12:42 ` Arnd Bergmann
2020-10-21 12:45 ` Russell King - ARM Linux admin
2020-10-21 12:45 ` Russell King - ARM Linux admin
2020-10-21 12:55 ` Arnd Bergmann
2020-10-21 12:55 ` Arnd Bergmann
2020-10-21 12:57 ` Russell King - ARM Linux admin
2020-10-21 12:57 ` Russell King - ARM Linux admin
2020-10-21 13:46 ` Vaneet Narang
2020-10-21 13:46 ` Vaneet Narang
2020-10-21 15:59 ` Arnd Bergmann
2020-10-21 15:59 ` Arnd Bergmann
2020-11-09 14:45 ` Tony Lindgren
2020-11-09 14:45 ` Tony Lindgren
2020-11-09 19:10 ` Arnd Bergmann
2020-11-09 19:10 ` Arnd Bergmann
2020-11-10 9:19 ` Tony Lindgren
2020-11-10 9:19 ` Tony Lindgren
2020-11-10 10:04 ` Arnd Bergmann
2020-11-10 10:04 ` Arnd Bergmann
2020-11-10 12:04 ` Tony Lindgren [this message]
2020-11-10 12:04 ` Tony Lindgren
2020-11-10 13:35 ` Arnd Bergmann
2020-11-10 13:35 ` Arnd Bergmann
2020-11-11 6:56 ` Tony Lindgren
2020-11-11 6:56 ` Tony Lindgren
2020-10-08 7:15 ` [PATCH 3/3] arm: Modify stack trace and dump for use with irq stack Maninder Singh
2020-10-08 7:15 ` Maninder Singh
2020-10-08 7:53 ` [PATCH 0/3] IRQ stack support for ARM Sebastian Andrzej Siewior
2020-10-08 7:53 ` Sebastian Andrzej Siewior
2020-10-08 8:30 ` Russell King - ARM Linux admin
2020-10-08 8:30 ` Russell King - ARM Linux admin
2020-10-15 20:59 ` Nick Desaulniers
2020-10-15 20:59 ` Nick Desaulniers
2020-10-15 21:16 ` Florian Fainelli
2020-10-15 21:16 ` Florian Fainelli
[not found] ` <CAK8P3a0h=D8_Kn_fpHbsik_jf4to2jayxj7K7B7=HaNFzKqNnw@mail.gmail.com>
2020-10-21 11:58 ` Arnd Bergmann
2020-10-21 11:58 ` Arnd Bergmann
2020-10-21 12:34 ` Russell King - ARM Linux admin
2020-10-21 12:34 ` Russell King - ARM Linux admin
2020-10-21 12:46 ` Arnd Bergmann
2020-10-21 12:46 ` Arnd Bergmann
2020-10-08 13:04 [PATCH 2/3] arm: introduce IRQ stacks kernel test robot
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=20201110120422.GE26857@atomide.com \
--to=tony@atomide.com \
--cc=0x7f454c46@gmail.com \
--cc=a.sahrawat@samsung.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@kernel.org \
--cc=bigeasy@linutronix.de \
--cc=caij2003@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=maninder1.s@samsung.com \
--cc=maz@kernel.org \
--cc=ndesaulniers@google.com \
--cc=nhuck@google.com \
--cc=tglx@linutronix.de \
--cc=v.narang@samsung.com \
--cc=valentin.schneider@arm.com \
--cc=vincent.whitchurch@axis.com \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.