Re: [PATCH v6 4/4] perf/marvell: cn10k DDR perf event core ownership

From: Will Deacon
Date: Tue Dec 14 2021 - 07:25:18 EST


On Fri, Oct 29, 2021 at 05:26:43PM +0530, Bharat Bhushan wrote:
> As DDR perf event counters are not per core, so they should be accessed
> only by one core at a time. Select new core when previously owning core
> is going offline.
>
> Signed-off-by: Bharat Bhushan <bbhushan2@xxxxxxxxxxx>
> ---
> v1->v6
> - No Change
>
> drivers/perf/marvell_cn10k_ddr_pmu.c | 50 ++++++++++++++++++++++++++--
> include/linux/cpuhotplug.h | 1 +
> 2 files changed, 49 insertions(+), 2 deletions(-)

I don't think the driver is much use without this patch, so please can you
move the Kconfig stuff to a patch at the end so that the driver can't be
enabled in a broken state half way through the series?

Will