From: Zaid Al-Bassam <zalbassam@google.com>
To: Marc Zyngier <maz@kernel.org>
Cc: Jesus Sanchez-Palencia <jesussanp@google.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Zenghui Yu <yuzenghui@huawei.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH 0/8] perf: arm: Make PMUv3 driver available for aarch32
Date: Fri, 10 Feb 2023 11:58:36 -0500 [thread overview]
Message-ID: <CALBRaFmj4Nvr=bjti+yCrRhtX61_aJhiCRDfbMJPLDhqVW8u1A@mail.gmail.com> (raw)
In-Reply-To: <86fsbgyutf.wl-maz@kernel.org>
Thank you Marc for reviewing the change and fixing the issues, I have
picked up your patches and sent out v2. Tested on Cortex-A32.
Best Regards,
Zaid Al-Bassam
On Wed, Feb 8, 2023 at 11:40 AM Marc Zyngier <maz@kernel.org> wrote:
>
> On Thu, 26 Jan 2023 20:44:36 +0000,
> Zaid Al-Bassam <zalbassam@google.com> wrote:
> >
> > Currently, PMUv3 driver is only available for ARMv8 aarch64
> > platforms, ARMv8 running in aarch32 mode dont have access to
> > the driver. This is, especially, a problem for ARMv8 platforms
> > that only have aarch32 support, like the Cortex-A32.
>
> FWIW, I've pushed out my own interpretation of this series to [1],
> including the changes I suggested. The results seems to correctly work
> in a 32bit guest on a 64bit host, which is what I (used to) care
> about.
>
> Feel free to pick it up.
>
> M.
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=arm/pmuv3
>
> --
> Without deviation from the norm, progress is not possible.
prev parent reply other threads:[~2023-02-10 16:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 20:44 [PATCH 0/8] perf: arm: Make PMUv3 driver available for aarch32 Zaid Al-Bassam
2023-01-26 20:44 ` [PATCH 1/8] arm64: perf: Move PMUv3 driver to drivers/perf Zaid Al-Bassam
2023-01-26 20:44 ` [PATCH 2/8] arm64: perf: Abstract system register accesses away Zaid Al-Bassam
2023-01-26 20:44 ` [PATCH 3/8] perf: pmuv3: Add common defines for the PMU version Zaid Al-Bassam
2023-02-08 11:20 ` Marc Zyngier
2023-01-26 20:44 ` [PATCH 4/8] perf: pmuv3: Add wrappers for KVM accesses Zaid Al-Bassam
2023-02-08 11:24 ` Marc Zyngier
2023-01-26 20:44 ` [PATCH 5/8] perf: pmuv3: Change GENMASK to GENMASK_ULL Zaid Al-Bassam
2023-02-08 11:30 ` Marc Zyngier
2023-01-26 20:44 ` [PATCH 6/8] ARM: Make CONFIG_CPU_V7 valid for 32bit ARMv8 implementations Zaid Al-Bassam
2023-01-26 20:44 ` [PATCH 7/8] ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM Zaid Al-Bassam
2023-02-08 12:51 ` Marc Zyngier
2023-01-26 20:44 ` [PATCH 8/8] ARM: mach-virt: Select PMUv3 driver by default Zaid Al-Bassam
2023-02-08 16:40 ` [PATCH 0/8] perf: arm: Make PMUv3 driver available for aarch32 Marc Zyngier
2023-02-09 0:15 ` Florian Fainelli
2023-02-10 16:58 ` Zaid Al-Bassam [this message]
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