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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: AoQHyOU-Vdxl9bA7m2z2IdzbU3DLsauG X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX7qlHWEuvEiAZ T9x//IANxRHtWXg6Kbg/gdlysgmEpvUd7NZtv6HNflL7DfDivfWZJliv6Q1O9jW/OCQhS15qw8v xIMWY0Zar7BbiBFBDdz34EQffjuAtsu2/SmS+kP/CPGE2U/fIZgvFO1ZNOAS8SCvEClPqFdgECZ PsHxVFXNMmqNYYdMUaqla78PxwUM/eM7PPwHLOkKaDps2wEblQu9b+qKOqRc1Oa62qlgJ4d7qN/ GyraM1zJGtH7A0jkIUZGV8a7QLwfz9WeA5fJ+AqMFIa1F/ZSJpYu6KFtlm6F8EufiGuCgOJ5iEh QbtUSWdl1r5iwyrBITY/JOt5jotvV0iHTIiux4l6kB4UW6UgPQoLhJ2CxHL007WrJFW/mhLsv+M vzUD7ncOvelZZo24UcgYjzr2xMnSXf186KdppNKKw3raShT1P8I73Y7gA1TasW00SSg3SydZpHv w7NnczgQD5pf2m4lmvw== X-Authority-Analysis: v=2.4 cv=MZn5KJ/f c=1 sm=1 tr=0 ts=6abce57c 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=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX0xPEmcos0Q21 tgDDCVhgE7TYsnAyUGonzxOSXNWWNNm1Gq2lNWBlO4TeK65aIv1SOrE81Pc0z7hnNqIf3AhoAdA L8CYrUkHUPswqRdjRsxgtNqcV4dwz9k= X-Proofpoint-ORIG-GUID: AoQHyOU-Vdxl9bA7m2z2IdzbU3DLsauG 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 malwarescore=0 lowpriorityscore=0 spamscore=0 suspectscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 impostorscore=0 adultscore=0 phishscore=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