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Fri, 02 Jan 2026 02:03:04 -0800 (PST) X-Google-Smtp-Source: AGHT+IEn4yMH16ngFDkg/GTXnGR5Rl9Xfysrq8xt0p8bXK7bRk0YW5rNVzRdBtt67mLtdiJCh5phmA== X-Received: by 2002:a17:902:f684:b0:2a1:3ee3:c6ae with SMTP id d9443c01a7336-2a2f293faedmr377988475ad.59.1767348183559; Fri, 02 Jan 2026 02:03:03 -0800 (PST) Received: from [10.204.101.164] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a2f3d4d88asm365778595ad.48.2026.01.02.02.02.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Jan 2026 02:03:03 -0800 (PST) Message-ID: <5fdf6122-3c2b-44fb-b8ea-9e554208a56d@oss.qualcomm.com> Date: Fri, 2 Jan 2026 15:32:57 +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 1/2] arm64: dts: qcom: agatti: Fix IOMMU DT properties To: Sumit Garg , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, akhilpo@oss.qualcomm.com, dikshita.agarwal@oss.qualcomm.com, robin.clark@oss.qualcomm.com, lumag@kernel.org, linux-kernel@vger.kernel.org, Prakash Gupta References: <20251229070712.456138-1-sumit.garg@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: 8bit X-Authority-Analysis: v=2.4 cv=NMbYOk6g c=1 sm=1 tr=0 ts=695797d9 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=9AdMxfjQAAAA:20 a=Uex5WGqezaL_9rCxZfUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 a=bA3UWDv6hWIuX7UZL3qL:22 X-Proofpoint-ORIG-GUID: W2DS_LK-XuRyNDswC87HewH9HFmhL1Wd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTAyMDA4OCBTYWx0ZWRfXxfKGV117Kp7a T7ht30mNcj25PrBZpAr6SOyZjaaiBkSeaz4qyXjNNaxp5pifiZvuen9QiDLa4cn/Hcp/LXqkw5h jNtweM90WG0qu2HKR/WaORSWOBtL5oj13IWOYxm0cYgF7ISEwlaxo+bZaRqU+i9mDWLQ8msLHKj ewrGUfspjoslht/gyUAlFDdOMb5WlNdXFXwIQOGs1HkVrcJymw0vNOTsn5cdlrJNkrD/UZeATQg 7eJAPSYfTMS6u65LPAcavwqHbkzYOBY2zlIqEOxHdl622vOKcnXW5toLS+lYeHflb2cAC4hxUdl IcFXIt/VIJVxiGoOuRAzX6SzPkjElTY2GyUsr0mLl/qV/W8o/BoKfcMQDp/wTXwcXPAdwIacxPa h2PA8eaLLuI7MxCLtMhMy423ZSlk0vUEEtqOgdoM5eC7soMgcYKT21lupoy8s250579lYZ9/+lm iTq7assM3uX39eS0xSg== X-Proofpoint-GUID: W2DS_LK-XuRyNDswC87HewH9HFmhL1Wd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-01_07,2025-12-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 suspectscore=0 bulkscore=0 priorityscore=1501 phishscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601020088 On 12/29/2025 12:50 PM, Sumit Garg wrote: > Hey Everyone, > > On Mon, Dec 29, 2025 at 12:37 PM Sumit Garg wrote: >> >> Fix IOMMU DT propeties for GPU, display and video peripherals via >> dropping SMMU stream IDs which relates to secure context bank. >> >> This problem only surfaced when the Gunyah based firmware stack is >> ported on Agatti replacing the legacy QHEE based firmware stack. Assigning >> Linux kernel (HLOS) VMID to secure context bank stream IDs is treated >> as a fault by Gunyah hypervisor which were previously ignored by QHEE >> hypervisor. >> >> The DT changes should be backwards compatible with legacy QHEE based >> firmware stack too. >> >> Suggested-by: Prakash Gupta >> Signed-off-by: Sumit Garg >> --- >> arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++-------- >> 1 file changed, 3 insertions(+), 8 deletions(-) >> > > Looks like I messed up this patch-set with email delivery leading to > non-delivery. I resent it properly again here [1]. Apologies for the > noise. > > [1] https://lore.kernel.org/lkml/20251229070712.456138-1-sumit.garg@oss.qualcomm.com/ > > -Sumit > >> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi >> index 8bf5c5583fc2..e705eb24160a 100644 >> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi >> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi >> @@ -1613,8 +1613,7 @@ gpu: gpu@5900000 { >> &bimc SLAVE_EBI1 RPM_ALWAYS_TAG>; >> interconnect-names = "gfx-mem"; >> >> - iommus = <&adreno_smmu 0 1>, >> - <&adreno_smmu 2 0>; >> + iommus = <&adreno_smmu 0 1>; >> operating-points-v2 = <&gpu_opp_table>; >> power-domains = <&rpmpd QCM2290_VDDCX>; >> qcom,gmu = <&gmu_wrapper>; >> @@ -1895,8 +1894,7 @@ mdss: display-subsystem@5e00000 { >> >> power-domains = <&dispcc MDSS_GDSC>; >> >> - iommus = <&apps_smmu 0x420 0x2>, >> - <&apps_smmu 0x421 0x0>; >> + iommus = <&apps_smmu 0x420 0x2>; >> interconnects = <&mmrt_virt MASTER_MDP0 RPM_ALWAYS_TAG >> &bimc SLAVE_EBI1 RPM_ALWAYS_TAG>, >> <&bimc MASTER_APPSS_PROC RPM_ALWAYS_TAG >> @@ -2339,10 +2337,7 @@ venus: video-codec@5a00000 { >> >> memory-region = <&pil_video_mem>; >> iommus = <&apps_smmu 0x860 0x0>, >> - <&apps_smmu 0x880 0x0>, >> - <&apps_smmu 0x861 0x04>, >> - <&apps_smmu 0x863 0x0>, >> - <&apps_smmu 0x804 0xe0>; >> + <&apps_smmu 0x880 0x0>; Are you planning to update the binding [1] with this change ? If so, how to handle the case of iommus for gunyah based vs non-gunyah based ? [1] https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/media/qcom%2Cqcm2290-venus.yaml#L45 Regards, Vikash >> >> interconnects = <&mmnrt_virt MASTER_VIDEO_P0 RPM_ALWAYS_TAG >> &bimc SLAVE_EBI1 RPM_ALWAYS_TAG>, >> -- >> 2.51.0 >>