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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX720EqEYygzWe Yu9Che47YEnnu8vcSK38VjvhTijwXulRojLXXK/wu5rHLMbbduRjsVgJ3TaKQdTi69saIHQwo9R UIpse8lRly8LCD5c/dQcmwnYOenNIp4= X-Proofpoint-GUID: UDz9encl0FuWTBez2bDT05i6pj7qGXcc X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX8D6a/KYyJgYF KJJfAsKv5/hzwqdOoWOiw9q3nEMU2NTES0N8yEHXvrkSEhRLjTw8uR0lMPxmUKd7EuycVhhKoic EgfnkqjA4JXo7jCxvQYA7KsiUr1s2/sGoN2ICbyHZTkzk30Zx8fmTUe8DHL3s6PQIPRGLqaJCHb qiXuFAikwtNWYBLyx2DeUSL5gDymJhB0vV0GeCA23prHzo/Dwe5UTake6iSrIgqSr5k7kqtIGSe dG/WDqffyCs86dDdAJufHgt2KU54NOWSLdNuLBUI2dbM2uNF2mWqoTIiIVwAaJKkIOcQn1MFPKZ 37rfj8/ehKj2w76XrBwQG18A8Pp9910Wj3VXALmJlFfEyGRYLM7tgFuge/BDvJ2TkAO8uTT5hts v/imy5TU1T7uBTTAG4MYyKXOhMVnsOxxDiUw+lXA3soPS5TjTvxEb+uVTdhkNIKaoFgeO3kgXeg J2atS6+ecaI1dwMQgqA== X-Authority-Analysis: v=2.4 cv=J8Q/fwnS c=1 sm=1 tr=0 ts=6abce554 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-ORIG-GUID: UDz9encl0FuWTBez2bDT05i6pj7qGXcc 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 lowpriorityscore=0 malwarescore=0 phishscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 suspectscore=0 adultscore=0 spamscore=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: Reviewed-by: Konrad Dybcio Konrad