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Message-ID: <7f66a0df-1fc5-b00f-d734-601b70baa018@arm.com>
Date:   Thu, 27 Oct 2022 08:21:47 +0530
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Subject: Re: [PATCH V4 0/7] arm64/perf: Enable branch stack sampling
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To:     linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, peterz@infradead.org,
        acme@kernel.org, mark.rutland@arm.com, will@kernel.org,
        catalin.marinas@arm.com
Cc:     Mark Brown <broonie@kernel.org>, James Clark <james.clark@arm.com>,
        Rob Herring <robh@kernel.org>, Marc Zyngier <maz@kernel.org>,
        Suzuki Poulose <suzuki.poulose@arm.com>,
        Ingo Molnar <mingo@redhat.com>
References: <20221017055713.451092-1-anshuman.khandual@arm.com>
From:   Anshuman Khandual <anshuman.khandual@arm.com>
In-Reply-To: <20221017055713.451092-1-anshuman.khandual@arm.com>
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On 10/17/22 11:27, Anshuman Khandual wrote:
> This series enables perf branch stack sampling support on arm64 platform
> via a new arch feature called Branch Record Buffer Extension (BRBE). All
> relevant register definitions could be accessed here.
> 
> https://developer.arm.com/documentation/ddi0601/2021-12/AArch64-Registers
> 
> This series applies on v6.1-rc1.
> 
> Changes in V4:
> 
> - Changed ../tools/sysreg declarations as suggested
> - Set PERF_SAMPLE_BRANCH_STACK in data.sample_flags
> - Dropped perfmon_capable() check in armpmu_event_init()
> - s/pr_warn_once/pr_info in armpmu_event_init()
> - Added brbe_format element into struct pmu_hw_events
> - Changed v1p1 as brbe_v1p1 in struct pmu_hw_events
> - Dropped pr_info() from arm64_pmu_brbe_probe(), solved LOCKDEP warning

Folks,

Gentle ping, any updates on this series ?