From: Gavin Shan <gshan@redhat.com>
To: Ben Horgan <ben.horgan@arm.com>
Cc: amitsinght@marvell.com, baisheng.gao@unisoc.com,
baolin.wang@linux.alibaba.com, carl@os.amperecomputing.com,
dave.martin@arm.com, david@kernel.org, dfustini@baylibre.com,
fenghuay@nvidia.com, james.morse@arm.com, jic23@kernel.org,
kobak@nvidia.com, lcherian@marvell.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, peternewman@google.com,
punit.agrawal@oss.qualcomm.com, quic_jiles@quicinc.com,
reinette.chatre@intel.com, rohit.mathew@arm.com,
scott@os.amperecomputing.com, sdonthineni@nvidia.com,
tan.shaopeng@fujitsu.com, xhao@linux.alibaba.com,
zengheng4@huawei.com, x86@kernel.org, leitao@kernel.org,
kas@kernel.org, puranjay@kernel.org, usama.arif@linux.dev,
kernel-team@meta.com, Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>,
Jonathan Cameron <jonathan.cameron@huawei.com>
Subject: Re: [PATCH v5 3/5] arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use
Date: Wed, 15 Jul 2026 20:22:59 +1000 [thread overview]
Message-ID: <efafdbd8-70c8-42f5-9dc1-8723723b3512@redhat.com> (raw)
In-Reply-To: <20260707162440.12132-4-ben.horgan@arm.com>
On 7/8/26 2:24 AM, Ben Horgan wrote:
> From: James Morse <james.morse@arm.com>
>
> ABMC, mbm_event mode, has a helper resctrl_arch_config_cntr() for changing
> the mapping between 'cntr_id' and a CLOSID/RMID pair.
>
> Add the helper.
>
> For MPAM this is done by updating the mon->mbwu_idx_to_mon[] array, and as
> usual CDP means it needs doing in three different ways.
>
> Signed-off-by: James Morse <james.morse@arm.com>
> Signed-off-by: Ben Horgan <ben.horgan@arm.com>
> Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
> Tested-by: Fenghua Yu <fenghuay@nvidia.com>
> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
> Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
> Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
> ---
> Changes since new rfc:
> Mention mbm_event mode in commit message
>
> Changes since v3:
> Warning bound (Sashiko)
>
> Changes since v4:
> resctrl_arch_reset_rmid() -> reset_arch_reset_cntr()
> ---
> drivers/resctrl/mpam_resctrl.c | 48 +++++++++++++++++++++++++++++-----
> 1 file changed, 42 insertions(+), 6 deletions(-)
>
Reviewed-by: Gavin Shan <gshan@redhat.com>
next prev parent reply other threads:[~2026-07-15 10:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-07 16:24 [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC) Ben Horgan
2026-07-07 16:24 ` [PATCH v5 1/5] arm_mpam: resctrl: Pick classes for use as MBM counters Ben Horgan
2026-07-15 10:12 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 2/5] arm_mpam: resctrl: Pre-allocate assignable monitors Ben Horgan
2026-07-15 10:22 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 3/5] arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use Ben Horgan
2026-07-15 10:22 ` Gavin Shan [this message]
2026-07-07 16:24 ` [PATCH v5 4/5] arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr() Ben Horgan
2026-07-15 10:23 ` Gavin Shan
2026-07-07 16:24 ` [PATCH v5 5/5] arm64: mpam: Add memory bandwidth usage (MBWU) documentation Ben Horgan
2026-07-09 16:43 ` Fenghua Yu
2026-07-15 10:23 ` Gavin Shan
2026-07-15 5:44 ` [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC) Gavin Shan
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