From: Florian Fainelli <f.fainelli@gmail.com>
To: Zaid Al-Bassam <zalbassam@google.com>,
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>,
Marc Zyngier <maz@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 v3 0/8] perf: arm: Make PMUv3 driver available for aarch32
Date: Mon, 13 Feb 2023 14:05:58 -0800 [thread overview]
Message-ID: <a2feeca3-fad9-e1a5-1964-129f86a4558c@gmail.com> (raw)
In-Reply-To: <20230213210319.1075872-1-zalbassam@google.com>
On 2/13/23 13:03, Zaid Al-Bassam wrote:
> Currently, PMUv3 driver is only available for ARMv8 aarch64 platforms,
> ARMv8 platorms 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.
>
> Make the PMUv3 driver available to arm arch (ARMv8 aarch32) by moving
> the PMUv3 driver from arm64 to drivers, that makes the driver common
> to both arm and arm64 architectures, then add PMUv3 arm Support.
>
> The main work in this patchset was made a while back by Marc Zyngier
> in [1]. Patchset version 1 [v1] rebases Marc's patches to the latest
> kernel revision and adds additional patches to accommodate the changes
> in the kernel since Marc wrote the patches.
>
> version 2 [v2] of the patchset was created by Marc Zyngier and I
> picked it up from [2].
Would appreciate being CC'd on next iterations, thanks:
Tested-by: Florian Fainelli <f.fainelli@gmail.com> # Cortex-A53 and
Cortex-A72
--
Florian
prev parent reply other threads:[~2023-02-13 22:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-13 21:03 [PATCH v3 0/8] perf: arm: Make PMUv3 driver available for aarch32 Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 1/8] arm64: perf: Move PMUv3 driver to drivers/perf Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 2/8] arm64: perf: Abstract system register accesses away Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 3/8] perf: pmuv3: Abstract PMU version checks Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 4/8] perf: pmuv3: Move inclusion of kvm_host.h to the arch-specific helper Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 5/8] perf: pmuv3: Change GENMASK to GENMASK_ULL Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 6/8] ARM: Make CONFIG_CPU_V7 valid for 32bit ARMv8 implementations Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 7/8] ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM Zaid Al-Bassam
2023-02-13 21:03 ` [PATCH v3 8/8] ARM: mach-virt: Select PMUv3 driver by default Zaid Al-Bassam
2023-02-13 22:05 ` Florian Fainelli [this message]
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