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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8535d345ecesm1230693b3a.59.2026.08.26.10.41.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 26 Aug 2026 10:41:42 -0700 (PDT) Message-ID: <39fbb239-ea0d-4168-bb20-07bfa10bc539@oss.qualcomm.com> Date: Wed, 26 Aug 2026 23:11:34 +0530 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 v9 07/12] arm_mpam: propagate MSC access errors for mpam_reprogram_ris_partid() To: Andre Przywara , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Catalin Marinas , Will Deacon , "Rafael J . Wysocki" , Len Brown , James Morse , Ben Horgan , Reinette Chatre , Fenghua Yu Cc: Jonathan Cameron , Ganapatrao Kulkarni , Trilok Soni , Srinivas Ramana , Niyas Sait , Lee Trager , Ritwick Sharma , Gavin Shan , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260807105451.3728284-1-andre.przywara@arm.com> <20260807105451.3728284-8-andre.przywara@arm.com> Content-Language: en-US From: Srivathsa L Rao In-Reply-To: <20260807105451.3728284-8-andre.przywara@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODI2MDE0OCBTYWx0ZWRfXynD+Kndy1MCy zRmIfYW1SpkgpQpPdBaHXmxlC5eIc+/A3BgLm5xhWxBuQoDz0ITInygUyzljqh63iTH6P/cH/1O 3oB6GLqyUQ7XRX9o6qzxRqB+ylOdP4E= X-Proofpoint-ORIG-GUID: T_c1EgYj-IRMqrpXa8wtDohwMZjvjjrO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI2MDE0OCBTYWx0ZWRfX8TtvOBwQyCqH 1Kl81yJIDbkNOxJ5GsbgHhfjr13FX5Ra0jCyhoSafgEMNSLZulcscgqSqGx26CS2BQVcmgmuye0 uTtOG0Ty+h56iiBi7xFehMvPml9ye9cr13+Vcn3AyXXH5NoSzbCwubyKA2zUF6l0aMR2V8KcBRu 8sLEH7AcFQPwtiQbS+D2+4j8EeMDCnOrGwt31QSiYtJdFcMXOHvg0CJzk48cpneqiybUaJGsihg Z7hAR92erUZFbCbCf0h9+5JfUV45b5oLEZ9s861kcGyVWuLdlBJ/i4bbYXZUf979K0TVIoTkeV/ +8/zAL0+7CtYLxhTTJ18oqfzRwOGjshBa02h6LEyv5OAv3bqi6i32D84y/d58ztjGsMVTU7Ep3d k1DmsQyUbJhIbHFhd9YcmxuGA0gJBh6r/nib7jSgFHPkeLeGHlajtUt/J0C725XmeCQS0WYfJoi yI0EVyWNilZF/yd47pw== X-Authority-Analysis: v=2.4 cv=T9S8ifKQ c=1 sm=1 tr=0 ts=6a8f2558 cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=7CQSdrXTAAAA:8 a=EUspDBNiAAAA:8 a=20KFwNOVAAAA:8 a=K_wyc9vDMbpTIRadLRgA:9 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 a=a-qgeE7W1pNrGK8U0ZQC:22 X-Proofpoint-GUID: T_c1EgYj-IRMqrpXa8wtDohwMZjvjjrO X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-26_05,2026-08-26_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 spamscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608260148 On 8/7/2026 4:24 PM, Andre Przywara wrote: > Allow the mpam_reprogram_ris_partid() function to check for and return > errors, and propagate MSC read and write errors from the lower level up. > This also covers the callers of this function: mpam_reset_ris() and > apply_config(). > > Signed-off-by: Andre Przywara > Review-by: Ben Horgan > Reviewed-by: Jonathan Cameron > Reviewed-by: Gavin Shan > Tested-by: Gavin Shan # on NVIDIA Grace Hopper > --- > drivers/resctrl/mpam_devices.c | 137 ++++++++++++++++++++++----------- > 1 file changed, 94 insertions(+), 43 deletions(-) > > diff --git a/drivers/resctrl/mpam_devices.c b/drivers/resctrl/mpam_devices.c > index 96579178f0c3..49239b15a27f 100644 > --- a/drivers/resctrl/mpam_devices.c > +++ b/drivers/resctrl/mpam_devices.c Reviewed-by: Srivathsa L Rao