linux-kernel - Re: [PATCH V3 RESEND 0/7] coresight: trbe: Workaround Cortex-A510 erratas

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Message-ID: <YfPR/93To8n7S9Sa@arm.com>
Date:   Fri, 28 Jan 2022 11:22:39 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org,
        Will Deacon <will@...nel.org>,
        Suzuki Poulose <suzuki.poulose@....com>,
        coresight@...ts.linaro.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 RESEND 0/7] coresight: trbe: Workaround Cortex-A510
 erratas

On Fri, Jan 28, 2022 at 10:51:42AM +0000, Catalin Marinas wrote:
> On Thu, Jan 27, 2022 at 01:22:20PM -0700, Mathieu Poirier wrote:
> > On Tue, Jan 25, 2022 at 07:50:30PM +0530, Anshuman Khandual wrote:
> > > Anshuman Khandual (7):
> > >   arm64: Add Cortex-A510 CPU part definition
> > >   arm64: errata: Add detection for TRBE ignored system register writes
> > >   arm64: errata: Add detection for TRBE invalid prohibited states
> > >   arm64: errata: Add detection for TRBE trace data corruption
> > >   coresight: trbe: Work around the ignored system register writes
> > >   coresight: trbe: Work around the invalid prohibited states
> > >   coresight: trbe: Work around the trace data corruption
> > > 
> > >  Documentation/arm64/silicon-errata.rst       |   6 +
> > >  arch/arm64/Kconfig                           |  59 ++++++++++
> > >  arch/arm64/include/asm/cputype.h             |   2 +
> > >  arch/arm64/kernel/cpu_errata.c               |  27 +++++
> > >  arch/arm64/tools/cpucaps                     |   3 +
> > >  drivers/hwtracing/coresight/coresight-trbe.c | 114 ++++++++++++++-----
> > >  drivers/hwtracing/coresight/coresight-trbe.h |   8 --
> > >  7 files changed, 183 insertions(+), 36 deletions(-)
> > 
> > I have applied this set and sent a pull request to Catalin for the arm64
> > portion.
> 
> Well, I'm happy for the whole series to go in via Greg's tree or however
> the coresight patches go in (that's why I acked them). The last three
> patches depend on the first four, so you might as well send them all
> together. I'd split the series only if there's a conflict with the arm64
> tree (I haven't checked).

I now checked and there's a minor conflict. I can send the arm64 part
from your pull request to Linus tonight and you can send the others via
the usual coresight path.

Thanks.

-- 
Catalin