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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: OMLJV-PvJ4fDM0rrfbQsDZOBUP0IXUq7 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX3ObtprmCRfRC PEdVgx8ZSykwxChd3tPgXaUQcwalUYgAaBbTTV/8RjMMrmsRKHl2U/7Nq9UyMu4ELRYauiQAi1S 2OJZ7VVuzf6/ZQ9ZfnKz5+ye5iZ/hcUJku0M6RDNsEjxUQk/+reavqRjowZFh/KAZQTzdPnOGIS +aFEb0m1LsXK8x27l7iJab3ZSKNnVndiQd0QAmGFPbgWdf0MPC0MNmzMPXqF9x4hIu++dj3M1bQ XxsS2prJ5zNWy+KgyBRX5ONGZ0GXj22A8fpCT8hUdcQNieqcKFFrhQ7MJBD819KzaIm16+gMOG4 WwyRUCLR9lFqlkkpzL1vH4nm/Zrj+1PdNyGuJSYzJpVOZPUHyuG153d+LAtl0kasioJus+6NQgJ ltU2dgJZGxXxTAdYt8AFHSSyjw/Ks8rGdsGDk1ioazwYuCE6nkfsCL5jx+9WLuAqEJKjbKJenv6 6I+AFfFwgprgApkNwvQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA0MSBTYWx0ZWRfX1A8m+MedcYAO QNoplIn4OYKBIQqzDeU0z8QJ0NvedELWzyjHzMH6AX617r3siadeVeXQImcFHJlF0i81wEfFoj6 5aEg5MVoNxVZXd8IPgo/W6OT/KRPAf8= X-Proofpoint-GUID: OMLJV-PvJ4fDM0rrfbQsDZOBUP0IXUq7 X-Authority-Analysis: v=2.4 cv=fqxJ914f c=1 sm=1 tr=0 ts=6abce564 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=4BULcDCo1EIeXDFKsSoA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 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 adultscore=0 clxscore=1015 impostorscore=0 malwarescore=0 suspectscore=0 spamscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=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 | > +-----------------------------------------------------------+ > | pixel stream addressable range (0 - 3.5 GB) | > | 0x00000000 - 0xe0000000 | > +-----------------------------------------------------------+ Reviewed-by: Konrad Dybcio Konrad