Return the id a graphics event was registered with in
sceAgcDriverAddEqEvent, which titles derive from their context
(PPSA12544: 0 or 1 for graphics, 0x20 + 8 * pipe + queue for compute) and
read back to dispatch the event. Other event filters, a null or
misaligned event and an id above 32 bits throw. The meaning is an
assumption and recorded in the technical debt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAgcDriverAddEqEvent and sceAgcDriverDeleteEqEvent were NotImplemented,
so a title that waits on its equeue for the GPU to reach the end of a
command buffer could never be woken.
AddEqEvent now registers a graphics-core event (filter -14, ident = the
given id, EV_CLEAR, data counting the interrupts since the last wait) on
the kernel equeue and remembers the registration; DeleteEqEvent removes
both. An invalid equeue or deleting an event that is not registered
throws.
The driver delivers the interrupt when it executes a RELEASE_MEM whose
INT_SEL is non-zero. Such a packet is not deferred as a GPU label: the
recorded work before it is drained, its memory write (if any) is done,
and then the event registered with the id of the issuing queue is
triggered (0 for the graphics ring, the ACB queue id for compute), which
matches how titles derive their event ids from the ring they submit on.
Merijn
Dean Galvin
boykopovar