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Tue, 21 Jul 2026 09:23:54 -0700 (PDT) X-Received: by 2002:a05:6a21:2c11:b0:3c0:9c19:6592 with SMTP id adf61e73a8af0-3c3ada36c4fmr21416036637.76.1784651033819; Tue, 21 Jul 2026 09:23:53 -0700 (PDT) Received: from [10.206.103.83] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3147e088d3fsm347633eec.25.2026.07.21.09.23.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Jul 2026 09:23:53 -0700 (PDT) Message-ID: <2323abe7-ecd3-4504-8790-ef1a2dacec8f@oss.qualcomm.com> Date: Tue, 21 Jul 2026 21:53:46 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 04/18] media: iris: Filter UBWC raw formats based on hardware capabilities To: Dmitry Baryshkov Cc: Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vishnu Reddy , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Dikshita Agarwal References: <20260709-iris-ar50lt-v7-0-76af9dd4d1f6@oss.qualcomm.com> <20260709-iris-ar50lt-v7-4-76af9dd4d1f6@oss.qualcomm.com> <5d213d08-8e00-4e7e-93ae-ba05f22f09e7@oss.qualcomm.com> Content-Language: en-US From: Vikash Garodia In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: uM0mTmXm_Tj4uxAJxR0RwUutEMwF7prz X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIxMDE3MyBTYWx0ZWRfX4yQkE4MG83vL du+hKjDr/VCNQliZUSxPmWNF6U7FEgDWbvrEAXwQD//iJvB5l0c4FPrQcu4KnOuS9yjtrg9ES8L t6SEdTJCumiut7stnv2HwORWbD1LlpE6V04l3iGbKceY6c82OET6hNjyZJnQIaFC5bYOA8AsNDT wdIGdFn9kBFItbjCODiiX8kUh+2DA1bUGTOvZZhAZ38b/e70KbFwTD16/h2OKWZ/zo01wHYAEpb FPx64drP6ABCA/AMtiGfV0SQ0HAtMNKOGR0XcFZ4WUjKgZ4wMung3iFYKLHaidp/2nVS6YXFurj vU91UMh0AULggiWBuWYJeaoc9TpQKvqJLsyxiD2GaPZHbt6mdEZw9DbaSYzOhEzRXaEuNT0HmLV DMJPd0mb9auSs9eB+IAeiNtF3EwLAwMyum5IXvfsHecC36byDCJybVFqdC/9v7Mapl1Mbr0q1Oj pwbbYLthUci1VPqU3AA== X-Proofpoint-GUID: uM0mTmXm_Tj4uxAJxR0RwUutEMwF7prz X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIxMDE3MyBTYWx0ZWRfX5C+UUo1rT/9y vzaL3wxAkj34UWJgd45mFp8Tb6smrB/WEKy9Jse6jg8Hvmfz6FOyHecOikC3OpEcRQrFr3yJa8w AkCJ5tudERcLhhavPzZXDtE98itSDcQ= X-Authority-Analysis: v=2.4 cv=QK1YgALL c=1 sm=1 tr=0 ts=6a5f9d1b cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=fu1g7sk19LlnXAIAUm0A:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-21_03,2026-07-20_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 spamscore=0 phishscore=0 impostorscore=0 bulkscore=0 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607210173 On 7/21/2026 8:34 PM, Dmitry Baryshkov wrote: > On Tue, 21 Jul 2026 at 17:08, Vikash Garodia > wrote: >> >> >> On 7/9/2026 7:11 PM, Dmitry Baryshkov wrote: >>> From: Dikshita Agarwal >>> >>> The raw formats supported by Iris were previously advertised >>> unconditionally, assuming UBWC support on all platforms. However, some >>> platforms do not support UBWC which results in incorrect format >>> capability exposure. >>> >>> Use the UBWC configuration provided by the platform to dynamically >>> filter raw formats at runtime. If UBWC is not supported, UBWC-based >>> formats are omitted from the advertised capability list, while linear >>> formats remain available. >>> >>> Signed-off-by: Dikshita Agarwal >>> Signed-off-by: Dmitry Baryshkov >>> --- >>> drivers/media/platform/qcom/iris/iris_vdec.c | 26 ++++++++++++++++++++++---- >>> drivers/media/platform/qcom/iris/iris_venc.c | 25 +++++++++++++++++++++---- >>> 2 files changed, 43 insertions(+), 8 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/iris/iris_vdec.c b/drivers/media/platform/qcom/iris/iris_vdec.c >>> index 4c8bc7aac135..9fee5f28097d 100644 >>> --- a/drivers/media/platform/qcom/iris/iris_vdec.c >>> +++ b/drivers/media/platform/qcom/iris/iris_vdec.c >>> @@ -3,6 +3,7 @@ >>> * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. >>> */ >>> >>> +#include >>> #include >>> #include >>> >>> @@ -69,8 +70,14 @@ static const u32 iris_vdec_formats_cap[] = { >>> V4L2_PIX_FMT_QC10C, >>> }; >>> >>> +static const u32 iris_vdec_formats_noubwc_cap[] = { >>> + V4L2_PIX_FMT_NV12, >>> + V4L2_PIX_FMT_P010, >>> +}; >>> + >>> static bool check_format(struct iris_inst *inst, u32 pixfmt, u32 type) >>> { >>> + const struct qcom_ubwc_cfg_data *ubwc = inst->core->ubwc_cfg; >>> unsigned int size, i; >>> const u32 *fmt; >>> >>> @@ -80,8 +87,13 @@ static bool check_format(struct iris_inst *inst, u32 pixfmt, u32 type) >>> size = inst->core->iris_platform_data->inst_iris_fmts_size; >>> break; >>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: >>> - fmt = iris_vdec_formats_cap; >>> - size = ARRAY_SIZE(iris_vdec_formats_cap); >>> + if (ubwc->ubwc_enc_version) { >> >> Do you see a possibility that ubwc is enabled for a SOC while VPU >> hardware does not support UBWC. IP document for qcom,qcm2290 lists some >> UBWC configuration, while VPU does not support UBWC. Not sure at this >> point if other blocks indeed support UBWC for qcom,qcm2290. > > No, QCM2290 doesn't really support UBWC between the IP cores (as such > it has ubwc_enc_version = 0). > Currently the database defines a least common denominator for all IP > cores. If we ever get to a point where we want to define UBWC params > per the core, we will need to restructure the database. > Ack.