On Tuesday, December 20, 2016 4:45:28 PM PST Topi Pohjolainen wrote: > This series introduces new use of brw_blorp_blit_miptrees()/ > brw_blorp_copy_miptrees(). Initial intention was to enable compression > on SKL already at the time of upload. That, however, didn't help > benchmarks but quite contrary regressed performance in some of > them (Synmark OglDrvRer for one). > Therefore blorp based upload only replaces the current gpu based > upload path - _mesa_meta_pbo_TexSubImage(). This is limited to cases > where the source is already gpu accessible (buffer object) or where the > target is busy (currently being written bu gpu). > > Implementation comes with user space pixel source option which can > be used to handle all cases y-tiled memcpy as well. It is also capable > of handling some of the cases y-tiled leaves to the slow > _mesa_store_texsubimage(). This isn't, however, enabled due to > performance regressions. Uploading with gpu means the incoming pixel > data needs to be gpu accessible which requires first a copy to a > buffer object. This copy hurts if it isn't followed by sufficient > amount of sampling. > > Finally there is more RFC type of patch simply dropping the meta > patch for gen < 6. I don't know which real world cases get hurt > without the meta path but at least there aren't any jenkins > regressions. > > Topi Pohjolainen (9): > i965: Refactor surface resolves prior to draw call > i965: Consider surface resolves just before draw > intel/blorp/dbg: Name blit shaders for easy recognition in dumps > i965: Estimate batch space per shader stage > meta: Refactor texture format translation > i965: Add support for tex upload using gpu > i965/gen6+: Use blorp for tex_image_2d > i965/gen6+: Use for tex_subimage_2d > i965: Drop _mesa_meta_pbo_TexSubImage() even for gen < 6
Patches 1-3 and 5 are: Reviewed-by: Kenneth Graunke <[email protected]>
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