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Yunus Shaikh
90d652a1ed
Ghost of Tsushima (PPSA02225) fills the separate stencil plane of its
two-sample D32S8 target with pattern 0 (0x870000) before it samples the
target. Any write over the plane was refused ("guest writes over native
multisample depth are not implemented").
A DMA or compute fill that covers the whole plane of a target whose
depth-only HTILE leaves the stencil in the plane is now recorded like a
whole-HTILE fill. At the next sample it is proven the way a whole-HTILE
fill is: no CPU write since the fill, complete tracked stores since the
fill unless the fill is the plane's newest queued GPU write, and every
plane byte equal to the fill byte once it has landed. The host image's
stencil aspect is then cleared to that byte. A fill that covers part of
the plane is refused ("native multisample stencil plane partial fill
transition is not implemented"), and so is a pattern that is not one
byte, a fill over unwatched memory and a second fill before the plane
was proven.
Tested: agc_driver_native_depth_separate_stencil fills the HTILE, the
stencil plane, or both, after a draw replaced the stencil, on pipe-aligned
and non-pipe-aligned depth-only HTILE, and checks the sampled depth and
which stencil reference the next draw passes. Partial, two-byte-pattern,
unstored and CPU-raced plane fills are refused. Without the change the
first plane fill refuses "guest writes over native multisample depth are
not implemented", and the partial fill refuses with that text instead of
the partial fill one.