Bug 108277

Summary: Implement tiled copies for AMD -> Intel PRIME
Product: Mesa Reporter: Jason Ekstrand <jason>
Component: Drivers/Vulkan/CommonAssignee: mesa-dev
Status: RESOLVED MOVED QA Contact:
Severity: enhancement    
Priority: medium CC: airlied, chadversary, daniel, jason
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Jason Ekstrand 2018-10-08 22:02:47 UTC 
When running the display server (X11 or Wayland) on an Intel GPU and using an AMD GPU as the primary, it wouldn't be terribly difficult to exchange X or Y-tiled images instead of linear ones.  This would certainly improve performance on the Intel GPU and probably somewhat on the AMD GPU since anything is better than linear.  The idea would be to replace the vkCmdCopyImageToBuffer with a compute pipeline that binds the PRIME image as a buffer and does the swizzling in the shader to get X or Y-tiling.
Comment 1 GitLab Migration User 2019-09-18 18:13:10 UTC 
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