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[175.34.8.244]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84a4f2778acsm2931021b3a.20.2026.07.15.03.23.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Jul 2026 03:23:12 -0700 (PDT) Message-ID: Date: Wed, 15 Jul 2026 20:22:59 +1000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 3/5] arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use To: Ben Horgan 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 , Jonathan Cameron References: <20260707162440.12132-1-ben.horgan@arm.com> <20260707162440.12132-4-ben.horgan@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20260707162440.12132-4-ben.horgan@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/8/26 2:24 AM, Ben Horgan wrote: > From: James Morse > > 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 > Signed-off-by: Ben Horgan > Tested-by: Shaopeng Tan > Tested-by: Fenghua Yu > Reviewed-by: Jonathan Cameron > Reviewed-by: Shaopeng Tan > Reviewed-by: Fenghua Yu > --- > 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