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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfXxZsKw1ZS8gUS 74wEv++kMvycHxkYDgs5Vf2p4QaD7LNg/axHsU8l9sPvRRkoFh523u4QuaxKdz/BcNax12h+eWJ rVBzfSY/+DetZuGY+Aj7gJ3/i8NpIXK5Z3ixlHCFsIFMITu9Tu+eKwPn156DbjO2ZEp4EZXTWCe t9KTI3dG5wvGdF/6+3OkPHfuo8+e2DSrafaz6F8Hg57A/p7KwPrr4RqxmAgr/RG1yB2tdwzl1yB clvQbtpAv10cKYvN8+x+uoPc4OwcmwSlMS3Yvaq0NmTMtqEjv6fHXaIHNL4WPoiG+8eeyL8hqbT QR2Oe6FF/UMfkN16uo83Quv93NVPUj81Mgn5E/T0QLXj6oke7cpJAU13qqWwMPn4a4hRSOOOLGn 4PU6hgvFAkEiWC28qenuXSyB/7Xl/9rKJtKfGnIJZ86IMd5N3/J/PS4k4MDxPau1J8M+ot+ePim a7eA9d+WL+9n52U/8XA== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfXxQcD6FgzDopb rfBxo+S95jFO3SDZtFuphU+9h8mgEYt53d8NpAESi2d5umH722ulDSD5v0osQg26dF7Fg+lKLVS 8sXnDZy0DsF4kLHYplTOVL8pCsyKj7w= X-Authority-Analysis: v=2.4 cv=RZEFmFtv c=1 sm=1 tr=0 ts=6abce584 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-GUID: 1JodX89Cn1hQu38_N2Q2d2Q3kGNhoUM8 X-Proofpoint-ORIG-GUID: 1JodX89Cn1hQu38_N2Q2d2Q3kGNhoUM8 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=2026-09-30_01,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 malwarescore=0 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609300041 On 9/26/26 8:34 AM, Vikash Garodia wrote: > The VPU issues DMA through several SMMU streams, and the hardware does > not give every stream the same addressable range. The non-pixel stream > cannot address the low 600MB of IOVA space, while the pixel stream can > address the full range: > +-----------------------------------------------------------+ > | non-pixel stream addressable range (600 MB - 3.5 GB) | > | 0x25800000 - 0xe0000000 | > +-----------------------------------------------------------+ Reviewed-by: Konrad Dybcio Konrad