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Phoronix0 Hot0 bình luận2 phút đọc
RADV & RadeonSI Drivers See New Fixes For AMD GCN 1.0/1.1 GPUs
Valve's Linux graphics driver engineer Timur Kristóf has landed fixes in Mesa for AMD GCN 1.0 (GFX6) and GCN 1.1 (GFX7) GPUs, addressing hardware and firmware bugs in both the RADV Vulkan driver and RadeonSI Gallium3D OpenGL driver. The fix adds waiting for shaders and flushing the L2 cache after every submission on these older GPUs to prevent VM faults and GPU hangs caused by EVENT_WRITE_EOP signaling fences while L2 is still dirty. Additionally, a prior RADV workaround for Hawaii GPUs has been reverted since an equivalent fix was upstreamed to the AMDGPU kernel driver, which had been causing performance regressions on Hawaii hardware.
Nguồn: https://www.phoronix.com/news/RADV-L2-Flush-Fix-GFX6-GFX7. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
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Jendrik Illner0 Hot3 phút
Graphics Programming weekly - Issue 444 - June 28th, 2026
Weekly curated roundup of graphics programming topics including a multi-layer ReSTIR variant for reducing disocclusion noise, an LLM-guided GPU kernel optimization system (KernelPro), a compute shader Catmull-Clark tessellation pipeline, smooth-maximum techniques for procedural surfaces, neural texture compression via hypernetworks, forward-mode differentiation for procedural texture derivatives, Rust-GPU for writing shaders in Rust compiled to SPIR-V, robust camera ray generation from clip matrices, and Radeon GPU profiler updates with DirectX 12 HLSL source display.
