From: Jan Glauber <jglauber@cavium.com>
To: Jeremy Linton <jeremy.linton@arm.com>
Cc: linux-kernel@vger.kernel.org, will.deacon@arm.com,
mark.rutland@arm.com, peterz@infradead.org, mingo@redhat.com,
catalin.marinas@arm.com, msalter@redhat.com,
timur@codeaurora.org, nleeder@codeaurora.org,
agustinv@codeaurora.org, sfr@canb.auug.org.au
Subject: Re: [PATCH 2/4] arm64: pmu: add fallback probe table
Date: Tue, 12 Apr 2016 10:22:29 +0200 [thread overview]
Message-ID: <20160412082228.GA3389@wintermute> (raw)
In-Reply-To: <1460152627-3248-3-git-send-email-jeremy.linton@arm.com>
On Fri, Apr 08, 2016 at 04:57:05PM -0500, Jeremy Linton wrote:
> From: Mark Salter <msalter@redhat.com>
>
> In preparation for ACPI support, add a pmu_probe_info table to
> the arm_pmu_device_probe() call. This table gets used when
> probing in the absence of a devicetree node for PMU.
>
> Signed-off-by: Mark Salter <msalter@redhat.com>
> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
> ---
> arch/arm64/kernel/perf_event.c | 10 +++++++++-
> include/linux/perf/arm_pmu.h | 3 +++
> 2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
> index f419a7c..8f12eac 100644
> --- a/arch/arm64/kernel/perf_event.c
> +++ b/arch/arm64/kernel/perf_event.c
> @@ -867,9 +867,17 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = {
> {},
> };
>
> +static const struct pmu_probe_info armv8_pmu_probe_table[] = {
> + ARMV8_PMU_PART_PROBE(ARM_CPU_PART_CORTEX_A53, armv8_a53_pmu_init),
> + ARMV8_PMU_PART_PROBE(ARM_CPU_PART_CORTEX_A57, armv8_a57_pmu_init),
> + PMU_PROBE(0, 0, armv8_pmuv3_init), /* if all else fails... */
> + { /* sentinel value */ }
> +};
> +
Hi Jeremy,
with 4.6 ThunderX PMU support was added, so I think above table is
missing a line like:
ARMV8_PMU_PART_PROBE(CAVIUM_CPU_PART_THUNDERX, armv8_thunder_pmu_init)
Thanks,
Jan
next prev parent reply other threads:[~2016-04-12 8:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 21:57 [PATCH 0/4 v3] arm64/perf: Add ACPI support Jeremy Linton
2016-04-08 21:57 ` [PATCH 1/4] arm: pmu: Fix non-devicetree probing Jeremy Linton
2016-04-08 21:57 ` [PATCH 2/4] arm64: pmu: add fallback probe table Jeremy Linton
2016-04-12 8:22 ` Jan Glauber [this message]
2016-04-08 21:57 ` [PATCH 3/4] arm64: pmu: Add support for probing with ACPI Jeremy Linton
2016-04-08 21:57 ` [PATCH 4/4] arm64: pmu: add A72 cpu type, support multiple PMU types Jeremy Linton
2016-04-08 23:22 ` kbuild test robot
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