fma-rc d6f67d1be2 fix(agc): keep fused geometry programs out of the caller's memory ...

sceAgcFuseShaderHalves copied both halves' code, the fused header and its
tables into the caller's memory and registered the program at that
address. PPSA02100 fuses different halves into the same memory a few
calls apart, while draws that use the earlier result are still queued.
The registry keeps one program per code address, so those draws were
compiled from the later program: its code read a user-data word the
bound layout does not have, and the device reported "BDA access failed"
for the mesh stage.

The PS5 5.02 module writes only the back half's register list into that
memory (sceAgcGetFusedShaderSize reports eight bytes per register,
alignment 4) and leaves the code where the halves are.

The fused code, header and tables now live in memory libSceAgc owns, one
program per distinct pair of halves, registered once. The caller's
memory receives the fused register list and the size query reports that
list. A second fusion of the same halves returns the same program; halves
whose contents changed get a new one.

The driver looked a header up by comparing its fields with the
registered header, including the register list's address. A header whose
register list is a copy elsewhere with the same contents now matches
too, which is what the title passes after a fusion.

2026-10-14 02:08:21 +02:00

..

include

feat(libSceAgc): implement sceAgcSetAmmSemaphoreMemory and sceAgcGetSemaphoreLabel

2026-10-13 15:01:43 +02:00

src

fix(agc): keep fused geometry programs out of the caller's memory

2026-10-14 02:08:21 +02:00