[libre-riscv-dev] [Bug 216] LOAD STORE buffer needed

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=216

--- Comment #19 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #18)
> (In reply to Jacob Lifshay from comment #17)
> > For GPU workloads, they still have some accesses (the majority for a tiled
> > architecture -- what Kazan is) that benefit from a L1 cache. basically, it
> > splits the screen into small squares/rectangles (bins) and accumulates a
> > list of rendering operations (binning) then for each square/rectangle (bin)
> > it renders all the operations inside it in sequence, so the pixels are
> > repeatedly stored and loaded until that bin is done rendering.
> > 
> > Texture access also benefits from a cache since nearby pixels are accessed
> > together and often the accesses are overlapping.
> 
> ok.
> 
> ok so those 1 MB texture buffers you mentioned before are accessed multiple
> times in near-succession?

Yes. Though several different textures can be accessed in an interleaved
fashion.

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