Thread (13 messages) 13 messages, 4 authors, 2020-11-11

Re: [PATCH 2/3] arm: introduce IRQ stacks

From: Tony Lindgren <tony@atomide.com>
Date: 2020-11-10 12:04:30
Also in: lkml

* Arnd Bergmann [off-list ref] [201110 10:04]:
On Tue, Nov 10, 2020 at 10:19 AM Tony Lindgren [off-list ref] wrote:
quoted
* Arnd Bergmann [off-list ref] [201109 19:10]:
quoted
On Mon, Nov 9, 2020 at 3:45 PM Tony Lindgren [off-list ref] 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

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