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Tue, 26 May 2026 04:22:01 -0700 (PDT) X-Received: by 2002:a05:6a21:68f:b0:3b1:a9ce:5095 with SMTP id adf61e73a8af0-3b328d940ebmr18161060637.22.1779794520961; Tue, 26 May 2026 04:22:00 -0700 (PDT) Received: from [10.206.105.200] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c852057f9cdsm10331123a12.32.2026.05.26.04.21.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 26 May 2026 04:22:00 -0700 (PDT) Message-ID: Date: Tue, 26 May 2026 16:51:52 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 From: Vishnu Reddy Subject: Re: [PATCH v6 06/14] media: iris: Add context bank hooks for platform specific initialization To: Dmitry Baryshkov Cc: Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Joerg Roedel , Will Deacon , Robin Murphy , Hans Verkuil , Stefan Schmidt , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stanimir Varbanov , Bjorn Andersson , Konrad Dybcio , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, iommu@lists.linux.dev, devicetree@vger.kernel.org References: <20260515-glymur-v6-0-f6a99cb43a24@oss.qualcomm.com> <20260515-glymur-v6-6-f6a99cb43a24@oss.qualcomm.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=IrYutr/g c=1 sm=1 tr=0 ts=6a15825a cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=93t1r52Nw9wdlAKC5OAA:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-ORIG-GUID: LB7iYoYVj_orqcKi1SUgP857bRndEhmm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI2MDA5OSBTYWx0ZWRfX0lQ/sebDrBHp 1DmY9hH9IuW9Y7tKFPM9GpNODcHA2R5I0QkoVnSs9IYGheSRuaevA7id6J23ASiyix+BrT978CF I/7xi2nckASsUAJuTtEgQiTqIQ7ZXFTyVWf9KaxTNhxYbvDxTNIAGfyZj4nZ/fZXnzwCmFoiCOP 5xmND8ozi6nCR66LJo4/ya+tS7eDCNT3C8EYKKCL63L7kjZBj9bLWkq2G3Wuq3kNkrT9gJyQDZD cHglRpKitxq4Lla06NTPPbd8qA3slauMCIsI1aclc5jheNjQPcEgA9UeWSeaxpaCAwqep6NdD3a QsnZ4DMCmUYYOTFZGjCXDmz9tYtotgfrRP200CZXCr9wTP7uSsAa4cyRiUcSewqj+NiD7p0dQcj tIk5fpB3uBflNqgtnlWLlL3qEmRXP8Lk7sF4K9sl1ttHuf+SeakcZpBkUdW6dARRfgYPGACZGOL mMP4nL7lbzdIppUFMpQ== X-Proofpoint-GUID: LB7iYoYVj_orqcKi1SUgP857bRndEhmm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-05-26_02,2026-05-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605260099 On 5/17/2026 11:05 PM, Dmitry Baryshkov wrote: > On Fri, May 15, 2026 at 04:51:21PM +0530, Vishnu Reddy wrote: >> The Glymur platform requires a dedicated firmware context bank device >> which is mapped to the firmware stream ID to load the firmware. > Why is it required on Glymur? Is it _only_ on Glymur? It is required for firmware booting on platforms where Linux runs as the hypervisor (KVM/EL2), where the driver needs to manually manage the firmware IOMMU mapping via a dedicated context bank device. This is currently specific to Glymur. >> Add init and deinit hooks in the platform data for context bank setup. >> These hooks allow platform specific code to initialize and tear down >> context banks. >> >> Reviewed-by: Vikash Garodia >> Signed-off-by: Vishnu Reddy >> --- >> .../platform/qcom/iris/iris_platform_common.h | 2 ++ >> drivers/media/platform/qcom/iris/iris_probe.c | 23 +++++++++++++++++++++- >> 2 files changed, 24 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h >> index 6a108173be35..84fc68128c70 100644 >> --- a/drivers/media/platform/qcom/iris/iris_platform_common.h >> +++ b/drivers/media/platform/qcom/iris/iris_platform_common.h >> @@ -263,6 +263,8 @@ struct iris_platform_data { >> */ >> const struct iris_firmware_desc *firmware_desc; >> >> + int (*init_cb_devs)(struct iris_core *core); >> + void (*deinit_cb_devs)(struct iris_core *core); > Why are they being added directly to iris_platform_data? Why not the > vpu_ops? Some vpu_ops are shared across more than one platform because of same power sequence. >> const struct vpu_ops *vpu_ops; >> const struct icc_info *icc_tbl; >> unsigned int icc_tbl_size;